GM328/GM338/GM398 Mobile Radios - of Manuals

GM328/GM338/GM398Mobile Radios

Detailed Service Manual

6804112J18-E

December, 2003

Computer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola prod-ucts shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

DOCUMENT HISTORY

The following major changes have been implemented in this manual since the previous edition:

Edition Description Date

6804112J18-O Initial edition

6804112J18-E Added Document History section. Dec. 2003

Changed to latest Safety Information (Feb. 2002)

Added GM328 model information to VHF, UHF1 and UHF2 bands.

THIS PAGE INTENTIONALLY LEFT BLANK

December, 2003


Detailed Service Manual

Contents

Section 1 Service Maintainability

Section 2 Controlhead Service Information

Section 3 Controller Service Information

Section 4 VHF Service Information

Section 5 UHF Band 1 Service Information

Section 6 UHF Band 2 Service Information

Section 7 Low Band Service Information

Section 8 VHF 45W Bipolar Service Information

Section 9 UHF Band 1 40W Bipolar Service Information

Section 10 UHF Band 2 40W Bipolar Service Information

Section 11 UHF Band 1 40W LDMOS Service Information

Section 12 UHF Band 2 40W LDMOS Service Information


Service Maintainability

Issue: December, 2003

Computer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

i

SAFETY INFORMATIONProduct Safety and RF Exposure for Mobile Two-Way Radios Installed in Vehicles or as Fixed Site Control Stations

The information provided in this document supersedes the general safety information contained in user guides published prior to February 2002.

RF Energy Exposure Awareness and Control Information, and Operational Instructions for FCC Occupational Use Requirements

NOTICE: This radio is intended for use in occupational/controlled conditions, where users have full knowledge of their exposure and can exercise control over their exposure to meet FCC limits. This radio device is NOT authorized for general population, consumer or any other use.

This 2-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide communications between two or more users over a distance. It uses radio frequency (RF) energy or radio waves to send and receive calls. RF energy is one from of electromagnetic energy. Other forms include, but are not limited to, sunlight and x-rays. RF energy, however, should not be confused with these other forms of electromagnetic energy, which when used improperly, can cause biological damage. Very high levels of x-rays, for example, can damage tissues and genetic material.

Experts in science, engineering, medicine, health, and industry work with organizations to develop standards for safe exposure to RF energy. These standards provide recommended levels of RF exposure for both workers and the general public. These recommended RF exposure levels include substantial margins of protection.

All Motorola 2-way radios are designed, manufactured, and tested to ensure they meet government-established RF exposure levels. In addition, manufacturers also recommend specific operating instructions to users of 2-way radios. These instructions are important because they inform users about RF energy exposure and provide simple procedures on how to control it.

Please refer to the following Web sites for more information on what RF energy exposure is and how to control your exposure to assure compliance with established RF exposure limits.http://www.fcc.gov/oet/rfsafety/rf-fags.htmlhttp://www.osha.gov/SLTC/radiofrequencyradiation/index.html

BEFORE USING THIS RADIO, READ THIS BOOKLET WHICH CONTAINS IMPORTANT OPERAT-ING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS AND CONTROL INFORMATION FOR COMPLIANCE WITH RF ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND INTERNATIONAL STANDARDS.

ii

Federal Communication Commission (FCC) Regulations

The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for mobile 2-way radios before they can be marketed in the U.S. When 2-way radios are used as a consequence of employment, the FCC requires users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a label directing users to specific user awareness information. Your Motorola 2-way radio has a RF exposure product label. Also, your Motorola user manual, or separate safety booklet, includes information and operating instructions required to control your RF exposure and to satisfy compliance requirements.

Compliance with RF Exposure Standard

Your Motorola two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE and ICNIRP exposure limits for occupational/controlled RF exposure environment at duty factors of up to 50% talk–50% listen and is authorized by the FCC for occupational use. In terms of measuring RF energy for compliance with the FCC exposure guidelines, your radio antenna radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode.

Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines:

• United States Federal Communications Commission, Code of Federal Regulations; 47 CFR part 2 sub-part J

• American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1992

• Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition• International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998• Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radiofrequency Elec-

tromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999• Australian Communications Authority Radiocommunications (Electromagnetic Radiation -

Human Exposure) Standard, 2003• ANATEL, Brasil Regulatory Authority, Resolution 256 (April 11, 2001) “additional requirements

for SMR, cellular and PCS product certification.”

RF Exposure Compliance and Control Guidelines and Operating Instructions

To control exposure to yourself and others and to ensure compliance with the RF exposure limits, always adhere to the following procedures.

Guidelines• User awareness instructions should accompany device when transferred to other users.• Do not use this device if the operational requirements described herein are not met.

Instructions• Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the

Push-To-Talk (PTT) button. To receive calls, release the PTT button. Transmitting 50% of the time, or less, is important because this radio generates measurable RF energy exposure only when transmitting (in terms of measuring for standards compliance).

• Transmit only when people outside the vehicle are at least the recommended minimum laterial distance away, as shown in Table 1, from the body of a vehicle with a properly installed antenna. This separation distance will ensure that there is sufficient distance from a

iii

properly installed (according to installation instructions) externally-mounted antenna to satisfy the RF exposure requirements in the standards listed above.

NOTE: Table 1 below lists the recommended lateral distance for bystanders in an uncontrolled environment from the body of a vehicle with an approved, properly installed transmitting antenna (i.e., monopoles overa a ground plane, or dipoles) at several different ranges of rated radio power for mobile radios installed in a vehicle.

NOTE:If you are not sure of the rated power of your radio, contact your Motorola representative or dealer and supply the radio model number found on the radio model label. If you cannot determine the rated power out, then assure 3-feet separation from the body of the vehicle.

Mobile Antenna Installation Guidelines• These mobile antenna installation guidelines are limited to metal body motor vehicles or vehicles

with appropriate ground planes.• Antennas should be installed in the center area of the roof or the trunk lid taking into account the

bystander exposure conditions of backseat passengers and according to the specific instructions and restrictions in the Radio Installation Manual along with the requirements of the antenna sup-plier.

• Trunk lid installations are limited to vehicles with clearly defined flat trunk lide, and in some cases, to specific radio models and antennas. See the Radio Installation Manual for specific information on how and where to install specific types of approved antennas to facilitate recom-mended operating distances to all potentially exposed persons.

• Use only the Motorola-approved, supplied antenna or a Motorola-approved replacement antenna. Unauthorized antennas, modifications, or attachments could damage the radio and may result in non-compliance with RF Safety Standards.

Approved Accessories• This radio has been tested and meets RF Safety Standards when used with the Motorola acces-

sories supplied or designated for this product. Use of other accessories may result in non-compli-ance with RF Safety Standards.

• For a list of Motorola-approved antennas, visit the following Web site, which lists approved accessories for your radio model: http://ap.cgiss.motorola.com/AAD/index.html

Additional Information

For additional information on exposure requirements or other training information, visit http://www.motorola.com/rfhealth.

Table 1: Rated Power of Vehicle-Installed Mobile Two-Way Radio andRecommended Minimum Lateral Distance from Vehicle Body

Mobile Radio Rated Power (see Note)

Minimum Lateral Distance from Vehicle Body

Less than 7 watts 8 inches (20 centimeters)

7 to 15 watts 1 foot (30 centimeters)

16 to 39 watts 2 feet (60 centimeters)

40 to 110 watts 3 feet (90 centimeters)

iv

Compliance and Control Guidelines and Operating Instructions for Mobile Two-Way Radios Installed as Fixed Site Stations

If mobile radio equipment is installed at a fixed location and operated as a control station or as a fixed unit, the antenna installation must comply with the following requirements in order to ensure optimal performance and compliance with the RF energy exposure limits in the standards and guidelines listed on page ii:

• The antenna should be mounted outside the building on the roof or a tower if at all possible.• As with all fixed site antenna installations, it is the responsibility of the licensee to manage the

site in accordance with applicable regulatory requirements and may require additional compli-ance actions such as site survey measurements, signage, and site access restrictions in order to ensure that exposure limits are not exceeded.

Electromagnetic Interference/CompatibilityNOTE:Nearly every electronic device is susceptible to electromagnetic interference (EMI) if

inadequately shielded, designed, or otherwise configured for electromagnetic compatibility. It may be necessary to conduct compatibility testing to determine if any electronic equipment used in or around vehicles or near fixed site antenna is sensitive to external RF energy or if any procedures need to be followed to eliminate or mitigate the potential for interaction between the radio transmitter and the equipment or device.

Facilities

To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy.

Vehicles

To avoid possible interaction between the radio transmitter and any vehicle electronic control modules, such as ABS, engine, or transmission controls, the radio should be installed only by an experienced installer and the following precautions should be used when installing the radio:

1. Refer to the manufacturer’s instructions or other technical bulletins for recommendations on radio installation.

2. Before installing the radio, determine the location of the electronic control modules and their harnesses in the vehicle.

3. Route all radio wiring, including the antenna transmission line, as far away as possible from the electronic control units and associated wiring.

Driver Safety

Check the laws and regulations on the use of radios in the area where you drive. Always obey them.

When using your radio while driving, please:

• Give full attention to driving and to the road.• Pull off the road and park before making or answering a call if driving conditions so require.

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Operational Warnings

For Vehicles With An Air BagDo not mount or place a mobile radio in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of the vehicle.

Potentially Explosive AtmospheresTurn off your radio prior to entering any area with a potentially explosive atmosphere. Sparks in a potentially explosive atmosphere can cause an explosion or fire resulting in bodily injury or even death.The areas with potentially explosive atmospheres include fueling areas such as below decks on boats, fuel or chemical transfer or storage facilities, and areas where the air contains chemicals or particles such as grain, dust or metal powders. Areas with potentially explosive atmospheres are often, but not always, posted.

Blasting Caps And Blasting AreasTo avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting caps, in a blasting area, or in areas posted: “Turn off two-way radio.” Obey all signs and instructions.For radios installed in vehicles fueled by liquefied petroleum gas, refer to the (U.S.) National Fire Protection Association standard, NFPA 58, for storage, handling, and/or container information. For a copy of the LP-gas standard, NFPA 58, contact the National Fire Protection Association, One Battery Park, Quincy, MA.

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vii

Table of ContentsSAFETY INFORMATION......................................................................................... i

Section 1 Introduction

1.0 Scope of Manual ..................................................................................................1-12.0 Warranty and Service Support.............................................................................1-1

2.1 Warranty Period and Return Instructions .......................................................1-12.2 After Warranty Period .....................................................................................1-12.3 Piece Parts Availability ...................................................................................1-22.4 Technical Support...........................................................................................1-22.5 Further Assistance From Motorola .................................................................1-2

3.0 Radio Model Information......................................................................................1-3

Section 2 Maintenance

1.0 Introduction ..........................................................................................................2-12.0 Preventive Maintenance ......................................................................................2-1

2.1 Inspection .......................................................................................................2-12.2 Cleaning .........................................................................................................2-1

3.0 Safe Handling of CMOS and LDMOS..................................................................2-24.0 General Repair Procedures and Techniques.......................................................2-25.0 Notes For All Schematics and Circuit Boards ......................................................2-5

Section 3 Service Aids

1.0 Recommended Test Tools...................................................................................3-12.0 Test Equipment....................................................................................................3-2

viii


1-1

Section 1

INTRODUCTION

1.0 Scope of Manual

This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete manual revision or alternatively as additions.

2.0 Warranty and Service Support

Motorola offers support which includes: full exchange and/or repair of the product during the warranty period; and service/repair or spare parts support out of warranty. Any “return for exchange” or “return for repair” to an authorized Motorola Dealer must be accompanied by a Warranty Claim Form. Warranty Claim Forms are obtained by contacting an Authorized Motorola Dealer.

2.1 Warranty Period and Return Instructions

The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or Reseller contract. These conditions may change from time to time, and the following subsections are for guidance purposes only.

In instances where the product is covered under a “return for replacement” or “return for repair” warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.

Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact Customer Resources. All returns must be accompanied by a Warranty Claim Form, available from your Customer Resources representative. Products should be shipped back in the original packaging, or correctly packaged to ensure that no damage occurs in transit.

2.2 After Warranty Period

After the Warranty period, Motorola continues to support its products in two ways:

1. Motorola's Accessories and Aftermarket Division (AAD) offers a repair service to both end users and dealers at competitive prices.

2. AAD supplies individual parts and modules that can be purchased by dealers who are techni-cally capable of performing fault analysis and repair.

NOTE Before operating or testing these units, please read the Safety Information section in thefront of this manual.

1-2 Warranty and Service Support

2.3 Piece Parts Availability

Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, it is available from Motorola’s Accessories and Aftermarket Division (AAD). If no part number is assigned, the part is not normally available from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot only. If a parts list is not included, this generally means that no user-serviceable parts are available for that kit or assembly.

All orders for parts/information should include the complete Motorola identification number. All part orders should be directed to your local AAD office. Please refer to your latest price pages.

2.4 Technical Support

Technical support is available to assist the dealer/distributor in resolving any malfunction which may be encountered. Initial contact should be by telephone wherever possible. When contacting Motorola Technical Support, be prepared to provide the product model number and the unit’s serial number.

2.5 Further Assistance From Motorola

You can also call the CGISS Indirect Business Customer Help Desk number, (604)-6302525 or send an email to [email protected].

1-3 Radio Model Information

3.0 Radio Model Information

The model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages. The example below shows one mobile radio model number and its specific characteristics.

Table 1-1 Radio Model Number (Example: AZM25KHF9AA5)

Type of Unit

Model Series

Freq. Band

Power Level

Physical Packages

Channel Spacing

ProtocolFeature Level

AZ M 25 KVHF(136-

174MHz)

H1-25W

CGM328

9Program-

mable

AAConventional

1GM328

RUHF1(403-

470MHz)

K25-60W

FGM338

5GM338

SUHF2(450-

527MHz)

NGM398

8GM398

BLB, R1(29.7-

36MHz)

CLB, R2

(36-40MHz)

DLB, R3

(42-50MHz)

AZ

= C

ount

ry C

ode

M =

Mob

ile

1-4 Radio Model Information


2-1

Section 2

MAINTENANCE

1.0 Introduction

This chapter of the manual describes:

• preventive maintenance

• safe handling of CMOS devices

• repair procedures and techniques

2.0 Preventive Maintenance

The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended.

2.1 Inspection

Check that the external surfaces of the radio are clean, and that all external controls and switches are functional. It is not recommended to inspect the interior electronic circuitry.

2.2 Cleaning

The following procedures describe the recommended cleaning agents and the methods to be used when cleaning the external and internal surfaces of the radio. External surfaces include the front cover, housing assembly, and battery case. These surfaces should be cleaned whenever a periodic visual inspection reveals the presence of smudges, grease, and/or grime.

The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild dishwashing detergent in water. The only factory recommended liquid for cleaning the printed circuit boards and their components is isopropyl alcohol (70% by volume).

1. Cleaning External Plastic SurfacesThe detergent-water solution should be applied sparingly with a stiff, non-metallic, short-bris-tled brush to work all loose dirt away from the radio. A soft, absorbent, lintless cloth or tissue should be used to remove the solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks, or crevices.

NOTE Internal surfaces should be cleaned only when the radio is disassembled for servicing orrepair.

CAUTION: The effects of certain chemicals and their vapors can have harmful results on certain plastics. Aerosol sprays, tuner cleaners, and other chemicals should be avoided.!

2-2 Safe Handling of CMOS and LDMOS

2. Cleaning Internal Circuit Boards and ComponentsIsopropyl alcohol may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the dislodged material out and away from the inside of the radio. Make sure that controls or tunable components are not soaked with alcohol. Do not use high-pressure air to hasten the drying process since this could cause the liquid to collect in unwanted places. Upon comple-tion of the cleaning process, use a soft, absorbent, lintless cloth to dry the area. Do not brush or apply any isopropyl alcohol to the frame, front cover, or back cover.

3.0 Safe Handling of CMOS and LDMOS

Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios. CMOS characteristics make them susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent device damage during disassembly, troubleshooting, and repair.

Handling precautions are mandatory for CMOS circuits and are especially important in low humidity conditions. DO NOT attempt to disassemble the radio without first referring to the CMOS CAUTION paragraph in the Disassembly and Reassembly section of the manual.

4.0 General Repair Procedures and Techniques

Parts Replacement and Substitution

When damaged parts are replaced, identical parts should be used. If the identical replacement component is not locally available, check the parts list for the proper Motorola part number and order the component from the nearest Motorola Communications parts center listed in the “Piece Parts” section of this manual.

Rigid Circuit Boards

The family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not accessible, some special considerations are required when soldering and unsoldering components. The through-plated holes may interconnect multiple layers of the printed circuit. Therefore, care should be exercised to avoid pulling the plated circuit out of the hole.

When soldering near the 18-pin and 40-pin connectors:

• avoid accidentally getting solder in the connector.

• be careful not to form solder bridges between the connector pins

• closely examine your work for shorts due to solder bridges.

NOTE Always use a fresh supply of alcohol and a clean container to prevent contamination bydissolved material (from previous usage).

General Repair Procedures and Techniques 2-3

Chip Components

Use either the RLN4062 Hot-Air Repair Station or the Motorola 0180381B45 Repair Station for chip component replacement. When using the 0180381B45 Repair Station, select the TJ-65 mini-thermojet hand piece. On either unit, adjust the temperature control to 370 °C (700 °F), and adjust the airflow to a minimum setting. Airflow can vary due to component density.

• To remove a chip component:

1. Use a hot-air hand piece and position the nozzle of the hand piece approximately 0.3 cm (1/8") above the component to be removed.

2. Begin applying the hot air. Once the solder reflows, remove the component using a pair of tweezers.

3. Using a solder wick and a soldering iron or a power desoldering station, remove the excess solder from the pads.

• To replace a chip component using a soldering iron:

1. Select the appropriate micro-tipped soldering iron and apply fresh solder to one of the solder pads.

2. Using a pair of tweezers, position the new chip component in place while heating the fresh solder.

3. Once solder wicks onto the new component, remove the heat from the solder.

4. Heat the remaining pad with the soldering iron and apply solder until it wicks to the compo-nent. If necessary, touch up the first side. All solder joints should be smooth and shiny.

• To replace a chip component using hot air:

1. Use the hot-air hand piece and reflow the solder on the solder pads to smooth it.

2. Apply a drop of solder paste flux to each pad.

3. Using a pair of tweezers, position the new component in place.

4. Position the hot-air hand piece approximately 0.3 cm (1/8” ) above the component and begin applying heat.

5. Once the solder wicks to the component, remove the heat and inspect the repair. All joints should be smooth and shiny.

2-4 General Repair Procedures and Techniques

Shields

Removing and replacing shields will be done with the R1070 station with the temperature control set to approximately 215°C (415°F) [230°C (445°F) maximum].

• To remove the shield:

1. Place the circuit board in the R1070 circuit board holder.

2. Select the proper heat focus head and attach it to the heater chimney.

3. Add solder paste flux around the base of the shield.

4. Position the shield under the heat-focus head.

5. Lower the vacuum tip and attach it to the shield by turning on the vacuum pump.

6. Lower the focus head until it is approximately 0.3 cm (1/8”) above the shield.

7. Turn on the heater and wait until the shield lifts off the circuit board.

8. Once the shield is off, turn off the heat, grab the part with a pair of tweezers, and turn off the vacuum pump.

9. Remove the circuit board from the R1070 circuit board holder.

• To replace the shield:

1. Add solder to the shield if necessary, using a micro-tipped soldering iron.

2. Next, rub the soldering iron tip along the edge of the shield to smooth out any excess solder. Use solder wick and a soldering iron to remove excess solder from the solder pads on the cir-cuit board.

3. Place the circuit board back in the R1070 circuit board holder.

4. Place the shield on the circuit board using a pair of tweezers.

5. Position the heat-focus head over the shield and lower it to approximately 0.3 cm (1/8”) above the shield.

6. Turn on the heater and wait for the solder to reflow.

7. Once complete, turn off the heat, raise the heat-focus head and wait approximately one minute for the part to cool.

8. Remove the circuit board and inspect the repair. No cleaning should be necessary.

Notes For All Schematics and Circuit Boards 2-5

5.0 Notes For All Schematics and Circuit Boards

* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.

1. Unless otherwise stated, resistances are in Ohms (K = 1000), and capacitances are in picofarads (pF) or microfarads (µF).

2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with the voltage probe to prevent circuit loading.

3. Interconnect Tie Point Legend:

16_8MHz 16.8MHz Reference Frequency

3V3 Regulated 3.3V Supply Voltage for Voice Storage

5V Regulated 5V Supply Voltage for RF Circuitry

5V Regulated 5V Supply Voltage (Control Head)

5V RF Regulated 5V Supply Voltage for RF Circuitry

5V SOURCE 5V Signal to Switch On Control Head

5VD Regulated 5V Supply Voltage for Digital Circuitry

9V3 Regulated 9.3V Supply Voltage

9V3FLT Filtered 9.3V Supply Voltage

A+ 13.2V Supply Voltage

ADDR µP Address Lines

AN Analog Lines to Analog to Digital Converter

ANALOG INPUT 2 External Keypad Matrix Column Signal

ANALOG INPUT 3 External Keypad Matrix Row Signal

BATTERY VOLTAGE Battery Voltage Sense Line

BL A GREEN Back Light Anode Green

BL A RED Back Light Anode Red

BL GREEN Green Back Light Control

BL K GREEN Back Light Cathode Green

BL K RED Back Light Cathode Red

BL KP Green Green Keypad Back Light Control

2-6 Notes For All Schematics and Circuit Boards

BL KP RED Red Keypad Back Light Control

BL LCD GREEN Green Display Back Light Control

BL LCD RED Red Display Back Light Control

BL RED Red Back Light Control

BOOT CNTRL Bootstrap Mode Enable Signal

BOOT MODE Boot Mode Select

BOOT PWR ON Control Head Switch On Signal

BOOT SCI RX Serial Communication Interface Receive Line

BOOT SCI TX Serial Communication Interface Transmit Line

BOOT VPP Boot Mode Select

BUS+ Bi-directional Serial Communication Line

BWSELECT Signal to select between the Ceramic Filter Pairs

CH ACT Channel Activity Indicator Signal (Fast Squelch)

CH KP ID Control Head Keypad ID (Data) Lines

CH REQUEST Control Head Request from Control Head µP

CLK Clock Signal

CNTLVLTG PA Power Control Voltage

CNTR AUDIO Audio Lines of the Controller

COL x Keypad Matrix Column x

CSX Chip Select Line PCIC / FRACN

DATA Data Signal

DC POWER ON Electronic Switching On or Off of the Radio's Voltage Regulators

DISCAUDIO Audio Output Signal from the Receiver IC

ECLK Clock (not used)

EE CS EEPROM Chip Select

EMERGENCY CONTROL Emergency Line to switch on the Radio's Voltage Regulators

EXP BD REQ Service Request Line from Expansion Board


EXP1 CS Expansion Board Chip Select 1

EXP2 CS Expansion Board Chip Select 2

EXT KP COL External Keypad Matrix Column Signal

EXT KP ROW External Keypad Matrix Row Signal

EXT MIC External (from Accessory Connector) Microphone Input

EXT SWB+ External Switched 13.2V Supply Voltage

F1200 Interrupt Line from ASFIC CMP

FECTRL 1 Control Voltage for Front End Filter

FECTRL 2 Control Voltage for Front End Attenuator Switch

FLASH CS Flash Chip Select

FLASH OE Flash Output Enable

FLAT RX SND Option Board Audio Output Signal

FLAT TX RTN Flat TX Input from Option Board and Accessory Connector

FLT A+ Filtered 13.2 V Supply Voltage

GP x IN General Purpose Input x

GP x IN ACC y General Purpose Input x from Accessory Connector Pin y

GP x IN OUT ACC y General Purpose Input/Output x from Accessory Connector Pin y

GP x OUT General Purpose Output x

GP x OUT ACC y General Purpose Input x from Accessory Connector Pin y

GPIO General Purpose Input Output Lines

HANDSET AUDIO Handset Audio Output

HOOK Hang-up Switch Input

HSIO High Speed Clock In / Data Out

IF First Intermediate Frequency Signal

IGNITION CONTROL Ignition Line to switch on the Radio's Voltage Regulators

IN 5V RF REG Supply Voltage for 5V Regulator in RF Section

INT KP COL Internal Keypad Matrix Column Signal


INT KP ROW Internal Keypad Matrix Row Signal

INT MIC Internal (from Control Head) Microphone Input

INT SWB Internal Switched 13.2V Supply Voltage

INT SWB+ Internal Switched 13.2V Supply Voltage

IRQ Interrupt Request from Control Head

K9V1 9.1V in Transmit Mode

KEYPAD ID Keypad Identification Line

LCD A0 LCD Control / Display Data Select

LCD CS LCD Chip Select

LCD DATA LCD Data Lines

LCD E RD LCD Enable Read

LCD RW WR LCD Read Write Control

LED CNTRL LED Control Lines

LED GREEN Green LED Control

LED RED Red LED Control

LED YELLOW Yellow LED Control

LOCK Lock Detect Signal from Synthesizer

LSIO Low Speed Clock In / Data Out

LVZIF CS LVZIF Chip Select (not used)

MIC Microphone Input

MISO Serial Peripheral Interface Receive Line

MODIN Modulation Signal into the Synthesizer

MOSBIAS 2 PA Bias Voltage for second Stage

MOSBIAS 3 PA Bias Voltage for third Stage

NOISE BLNKR Noise Blanker Enable (Low Band only)

ON OFF CONTROL Service Request Line from Control Head / Manual Switching Onof the Radio's Voltage Regulators

ON OFF SENSE (Control Head) On/Off Sense Line to Control Head µP


ON OFF SENSE (Controller) Service Request Line from Control Head

OPT CS Option Board Chip Select

OPT PTT PTT from Option Board

PA PWR SET ASFIC Output Voltage to set the Transmitter Power

PA SWB Switches Supply Voltage for PA Current Control Circuitry

PA SUPVLTG 13.2 V Supply Voltage of the Transmitter PA

PCIC MOSBIAS 1 PA Bias Voltage for first Stage

PRESC Prescaler Signal from VCO to Synthesizer

PTT IRDEC Microphone PTT Input

PTT IRDECODER Microphone PTT Input

R W Read Write Signal for RAM / Flash

RAM CS RAM Chip Select

RDY Service Request Line from Option Board

REF CS Reference Chip Select (not used)

RESET Reset Line

ROW x Keypad Matrix Row x

RSSI Received Signal Strength Indicator

RX ADAPT Flat TX Path Disable during Transmitter Key-up

RX AUD RTN Option Board Input / Output of Receiver Audio Path

RX FLAT FILTERED AUDIO Flat or Filtered Audio to Accessory Connector

RXIN RF Signal from Antenna Switch into the Receiver

RXINJ RF Signal from the VCO into the Mixer

SCI RX Serial Communication Interface Receive Line

SCI TX Serial Communication Interface Transmit Line

SPI Serial Peripheral Interface Bus

SPKR- Negative Audio PA Speaker Output

SPKR+ Positive Audio PA Speaker Output


SQ DET Squelch Detect Signal

SYN µP Clock Signal

TEMP SENSE Temperature Sense Line for LCD

TEMPSENSE Temperature Sense Line from PA to µP

TRB TX/RX VCO Switch Signal

TX AUD RTN Option Board Output to Transmit Audio Path

TX AUD SND Microphone Audio to Option Board

TXINJ RF Signal from the VCO into the Transmitter PA

U DRIVER Supply Voltage for PA Driver

U PREDRIVER Supply Voltage for PA Pre-driver

UNSW 5V Permanent 5V Supply

URX SND Filtered Audio Signal to Option Board

VAG 2.5V Reference Voltage for Analog Circuitry

VCOBIAS 1 Switch Signal from Synthesizer

VCOBIAS 2 Switch Signal from Synthesizer

VCOMOD Modulation Signal into VCO

VCTRL VCO Frequency Control Voltage

VDDA Regulated 5V for Digital Circuitry in RF Section

VOLTAGE SENSE Voltage Sense Line from LCD

VOLUME Volume Pot Output

VOX Voice Operated Transmit Level

VPP Boot Mode Select

VS AUDIOSEL Switch Signal to Enable Option Board Audio Output Signal

VS GAINSEL Voice Storage Gain Select Line

VS INT Voice Storage Interrupt Line

VS MIC Voice Storage Audio Signal into Microphone Path

VS RAC Voice Storage Row Address Clock Signal


VSF Voltage Super Filtered (5V)

VSTBY 5V Supply for µP when the Radio is switched off

4-LAYER CIRCUIT BOARD DETAIL VIEWINGCOPPER STEPS IN PROPER LAYER SEQUENCE

LAYER 1 (L1)

LAYER 2 (L2)LAYER 3 (L3)LAYER 4 (L4)

INNER LAYERS

SIDE 1

SIDE 2

3-1

Section 3

SERVICE AIDS

1.0 Recommended Test Tools

Table 3-1 lists the service aids recommended for working on the radio. While all of these items are available from Motorola, most are standard workshop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed.

Table 3-1 Service Aids

Motorola Part Number

Description Application

RLN4460_ Portable Test Set Enables connection to audio/accessory jack. Allows switching for radio testing.

RKN4081_ Programming Cable with Internal RIB

Includes radio interface box (RIB) capability.

RLN4853_ 10 to 20 Pin Adapter Connects RKN4081_ to the radio accessory connector.

RKN4083_ Mobile Programming/Test Cable

Connects radio to RIB (RLN4008_).

GTF374_ Program Cable Connects RIB to Radio microphone input

RLN4008_ Radio Interface Box Enables communications between radio and computer’s serial communications adapter.

HLN8027_ Mini UHF to BNC Adaptor Adapts radio antenna port to BNC cabling of test equipment.

GPN6133_ Power Supply Provides the radio with power when bench test-ing.

EPN4040_ Wall-Mounted Power Supply Used to supply power to the RIB (UK).

EPN4041_ Wall-Mounted Power Supply Used to supply power to the RIB (Euro)

8180384J59 Housing Eliminator (short) Test Fixture used to bench test the radio PCB

8180384L95 Housing Eliminator (short + top)

Test Fixture used to bench test the radio PCB. (Radio using pressure pads to retain PCB)

8180384J60 Housing Eliminator (medium) Test Fixture used to bench test the radio PCB

8180384J61 Housing Eliminator (long) Test Fixture used to bench test the radio PCB

3080369B71 Computer Interface Cable Connects the RIB to the Computer (25-pin)

3080369B72 Computer Interface Cable Connects the RIB to the Computer 9-pin(Use for IBM PC AT - other IBM models use the B71 cable above)

6686119B01 Removal Tool Assists in the removal of radio control head.

3-2 Test Equipment

2.0 Test Equipment

Table 3-2 lists test equipment required to service the radio and other two-way radios.

Table 3-2 Recommended Test Equipment

Motorola Part Number

Description Characteristics Application

R2600_NT Comms System Analyzer (non MPT)

This monitor will sub-stitute for items with an asterisk*

Frequency/deviation meter and signal gen-erator for widerange troubleshooting and alignment

R2680_NT Comms System Analyzer ( MPT1327) to be ordered with RLN1022_ (H/W) RLN1023_ (S/W)

This monitor will sub-stitute for items with an asterisk*.

Frequency/deviation meter and signal gen-erator for widerange troubleshooting and alignment

*R1072_ Digital Multimeter AC/DC voltage and current measure-ments

*R-1377_ AC Voltmeter 100µV to 300V, 5Hz - 1MHz, 10Megohm input impedance

Audio voltage mea-surements

WADN133 Delay Oscilloscope 2 Channel 40MHz bandwidth, 5mV/cm - 20 V/cm

Waveform measure-ments

R1440_

0180305F170180305F310180305F39RLN4610

T1013_

Wattmeter,

Plug-in ElementsPlug-in ElementsPlug-in ElementsCarry case

RF Dummy Load

Thruline 50-Ohm,±5% accuracy100W, 25 - 60MHz25W, 100-250MHz10W, 200-250MHzWattmeter and 6 elements

Transmitter power output measurements

S1339_ RF Millivolt Meter 100mV to 3 VRF.10kHz to 1.2GHz

RF level measure-ments

R1011_/220V 220V Power Supply 0 - 40V 0 - 40A Programmable


Controlhead

Service Information


i

Table of Contents

Section 1 overview

1.0 GM328 Model (GCN6112_) .................................................................................1-12.0 GM338 Model (GCN6114_) .................................................................................1-23.0 GM398 Model (GCN6115_) .................................................................................1-3

Section 2 Theory of Operation

1.0 Introduction ..........................................................................................................2-12.0 Controlhead Model for GM328.............................................................................2-1

2.1 Power Supplies...............................................................................................2-12.2 Power On / Off................................................................................................2-12.3 Microprocessor Circuit....................................................................................2-22.4 SBEP Serial Interface.....................................................................................2-22.5 Keypad Keys ..................................................................................................2-32.6 Status LED and Back Light Circuit .................................................................2-32.7 Microphone Connector Signals ......................................................................2-32.8 Speaker ..........................................................................................................2-42.9 Electrostatic Transient Protection...................................................................2-4

3.0 Controlhead Model for GM338.............................................................................2-43.1 Power Supplies...............................................................................................2-43.2 Power On / Off................................................................................................2-43.3 Microprocessor Circuit....................................................................................2-53.4 SBEP Serial Interface.....................................................................................2-53.5 Keypad Keys ..................................................................................................2-63.6 Status LED and Back Light Circuit .................................................................2-63.7 Liquid Crystal Display (LCD) ..........................................................................2-73.8 Microphone Connector Signals ......................................................................2-73.9 Speaker ..........................................................................................................2-83.10 Electrostatic Transient Protection...................................................................2-8

4.0 Controlhead Model for GM398.............................................................................2-94.1 Power Supplies...............................................................................................2-94.2 Voltage Regulator Circuit................................................................................2-94.3 Power On / Off................................................................................................2-94.4 Microprocessor Circuit..................................................................................2-104.5 SBEP Serial Interface...................................................................................2-104.6 Keypad Keys ................................................................................................2-114.7 Status LED and Back Light Circuit ...............................................................2-114.8 Liquid Crystal Display (LCD) ........................................................................2-124.9 Microphone Connector Signals ....................................................................2-12

ii

4.10 Speaker (Remote Mount Configuration only) ...............................................2-134.11 Electrostatic Transient Protection.................................................................2-13

Section 3 Troubleshooting Charts

1.0 Controlhead GM328 Troubleshooting Flow Chart ...............................................3-11.1 On/Off ............................................................................................................3-11.2 Microprocessor...............................................................................................3-2

2.0 Controlhead GM338 Troubleshooting Flow Chart ...............................................3-32.1 On/Off ............................................................................................................3-32.2 Microprocessor...............................................................................................3-42.3 Display............................................................................................................3-52.4 Backlight.........................................................................................................3-6

3.0 Controlhead GM398 Troubleshooting Flow Chart ...............................................3-73.1 On/Off ............................................................................................................3-73.2 Microprocessor ..............................................................................................3-83.3 Microprocessor (cont.)....................................................................................3-93.4 Display .........................................................................................................3-103.5 Keypad Backlight .........................................................................................3-113.6 Display Backlight .........................................................................................3-12

Section 4 Controlhead PCBs / Schematics / Parts lists

1.0 Allocation of Schematics and Circuit Boards .......................................................4-12.0 Controlhead GM328 - PCB 8486146B07 / Schematics.......................................4-3

Controlhead GM328 - PCB 8486146B07 ..............................................................4-3Controlhead GM328 - Schematic Sheet 1 of 2.......................................................4-4Controlhead GM328 - Schematic Sheet 2 of 2.......................................................4-5Controlhead PCB 8486146B07 Parts List ..............................................................4-6

3.0 Controlhead GM338 - PCB 8486155B06 / Schematics.......................................4-7Controlhead GM338 - PCB 8486155B06 ..............................................................4-7Controlhead GM338 - Schematic Sheet 1 of 4.......................................................4-8Controlhead GM338 - Schematic Sheet 2 of 4.......................................................4-9Controlhead GM338 - Schematic Sheet 3 of 4.....................................................4-10Controlhead GM338 - Schematic Sheet 4 of 4.....................................................4-11Controlhead PCB 8486155B06 Parts List ............................................................ 4-12

4.0 Controlhead GM398 - PCB 8486178B03 / Schematics.....................................4-13Controlhead GM398 - PCB 8486178B03 .............................................................4-13Controlhead GM398 - Schematic Sheet 1 of 4.....................................................4-14Controlhead GM398 - Schematic Sheet 2 of 4.....................................................4-15Controlhead GM398 - Schematic Sheet 3 of 4.....................................................4-16Controlhead GM398 - Schematic Sheet 4 of 4.....................................................4-17Controlhead PCB 8486178B03 Parts List ............................................................ 4-18

1-1

Section 1

OVERVIEW

1.0 GM328 Model (GCN6112_)

The Controlhead contains the internal speaker, the on/off/volume knob, the microphone connector, several buttons to operate the radio and several indicator Light Emitting Diodes (LED) to inform the user about the radio status. To control the LED’s and to communicate with the host radio the control head uses the Motorola 68HC11E9 microprocessor.

1-2 GM338 Model (GCN6114_)

2.0 GM338 Model (GCN6114_)

The Controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector, several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio status, and a 14 character Liquid Crystal Display (LCD) for alpha - numerical information e.g. channel number or call address name. To control the LED’s and the LCD, and to communicate with the host radio the control head uses the Motorola 68HC11E9 microprocessor.

GM398 Model (GCN6115_) 1-3

3.0 GM398 Model (GCN6115_)

The Controlhead contains the On/Off/Volume knob, the microphone connector, several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio status, and a Liquid Crystal Display (LCD) with 21 pre - defined symbols and a 32*96 dot matrix for graphical or alpha - numerical information e.g. channel number, select code, call address name. To control the LEDs and the LCD, and to communicate with the host radio the control head uses the Motorola 68HC11K4 microprocessor.

1-4 GM398 Model (GCN6115_)


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the Controlhead circuits. For details of the trouble shooting refer to the related Section of this manual.

2.0 Controlhead Model for GM328

The controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector, several buttons to operate the radio and several indicator Light Emitting Diodes (LED) to inform the user about the radio status. To control the LED’s and to communicate with the host radio the control-head uses the Motorola 68HC11E9 microprocessor.

2.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector J0801 pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at supply voltage level and is used for the LED’s, the back light and to power up the radio via on / off / volume knob. The stabilized +5 volt is used for the microprocessor and the keypad buttons. The voltage USW 5V derived from the FLT A+ voltage and stabilized by the series combination of R0822, VR0822 is used to buffer the internal RAM of the microprocessor (U0831). C0822 allows the supply voltage level to be disconnected for a couple of seconds without losing RAM parameters. Dual diode D0822 prevents radio circuitry from discharging this capacitor. When the supply voltage is applied to the radio, C0822 is charged via R0822 and D0822. To avoid, that the µP enters the wrong mode when the radio is switched on while the voltage across C0822 is still too low, the regulated 5V charge C0822 via diode D0822.

2.2 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s voltage regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital transistor Q0822 informs the controlhead’s microprocessor about the pressed knob. The microprocessor asserts pin 62 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts via Q0823 and D0821. The high line ON OFF CONTROL also informs the host radio, that the controlhead’s microprocessor wants to send data via SBEP bus. When the radio returns a data request message, the microprocessor will inform the radio about the pressed knob. If the radio was switched off, the radio’s µP will switch it on and vice versa. If the On/Off/Volume knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF CONTROL and sends a data request message. The controlhead µP will inform the radio about the pressed knob and the radio’s µP will switch the radio off.

2-2 Controlhead Model for GM328

2.3 Microprocessor Circuit

The controlhead uses the Motorola 68HC11E9 microprocessor (µP) (U0831) to control the LED’s and to communicate with the host radio. RAM and ROM are contained within the microprocessor itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8 MHz ceramic resonator (U0833) and R0920.

The microprocessor’s RAM is always powered to maintain parameters such as the last operating mode. This is achieved by maintaining 5V at µP pin 25. Under normal conditions, when the radio is off, USW 5V is formed by FLT A+ running to D0822. C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP . They are labeled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP . If this voltage is lower than +5V the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type and the controlhead ID by reading the levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic „1" for it to start executing correctly. The XIRQ and the IRQ pins should also be at a logic „1".

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes below 4.5 volts. This is used to reset the controller to prevent improper operation.

2.4 SBEP Serial Interface

The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This bus uses only line BUS+ for data transfer. The line is bi-directional meaning that either the radio or the controlhead µP can drive the line. The microprocessor sends serial data via pin 50 and D0831 and it reads serial data via pin 47. Whenever the microprocessor detects activity on the BUS+ line, it starts communication.

When the host radio needs to communicate to the controlhead µP , it sends data via line BUS+. Any transition on this line generates an interrupt and the µP starts communication. The host radio may send data like LED and back light status or it may request the controlhead ID or the keypad ID.

When the controlhead µP wants to communicate to the host radio, the µP brings request line CH REQUEST to a logic „0" via µP pin 62. This switches on Q0823, which pulls line ON OFF CONTROL high through diode D0821. A low to high transition on this line informs the radio, that the controlhead requires service. The host radio then sends a data request message via BUS+ and the controlhead µP replies with the data it wanted to send. This data can be information like which key has been pressed or that the volume knob has been rotated.

The controlhead µP monitors all messages sent via BUS+, but ignores any data communication between host radio and CPS or Universal Tuner.

Controlhead Model for GM328 2-3

2.5 Keypad Keys

The controlhead keypad is a 6-key keypad. All keys are configured as 2 analogue lines read by µP pins 13 and 15 . The voltage on the analogue lines varies between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the voltage at both lines will be 5 volts. The key configuration can be thought of as a matrix, where the two lines represent one row and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce the voltages on the analogue lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both lines must be considered.An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a keypad microphone, connected to the microphone connector J0811. Any microphone key press is processed the same way as a key press on the controlhead.

2.6 Status LED and Back Light Circuit

All indicator LED’s (red, yellow, green) are driven by current sources. To change the LED status the host radio sends a data message via SBEP bus to the controlhead µP . The controlhead µP determines the LED status from the received message and switches the LED’s on or off via port PB 7 – 0 and port PA4. The LED status is stored in the µP ’s memory. The LED current is determined by the resistor at the emitter of the respective current source transistor.

The back light for the keypad is controlled by the host radio the same way as the indicator LED’s using µP port PA 5. The µP can switch the back light on and off under software control. The keypad back light current is drawn from the FLT A+ source and controlled by 2 current sources. The LED current is determined by the resistor at the emitter of the respective current source transistor.

2.7 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V and 2 A/D converter inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the audio from the microphone to the radio’s controller via connector J0801-4. Line HANDSET AUDIO (J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+, which is at supply voltage level, and +5V are used to supply any connected accessory like a microphone or a handset.

The 2 A/D converter inputs (J0811-9/10) are used for a microphone with keypad. A pressed key will change the dc voltage on both lines. The voltages depend on which key is pressed. The µP determines from the voltage on these lines which key is pressed and sends the information to the host radio.

Line PTT IRDEC (J0811-6) is used to key up the radio’s transmitter. While the PTT button on a connected microphone is released, line PTT IRDEC is pulled to +5 volts level by R0843. Transistor Q0843 is switched on and causes a low at µP port PA2. When the PTT button is pressed, signal PTT IRDEC is pulled to ground level. This switches off Q0843 and the resulting high level at µP port PA2 informs the µP about the pressed PTT button. The µP will inform the host radio about any status change on the PTT IRDEC line via SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode VR0821 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware into the radio’s flash memory (See controller subsection for more details).


The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0841. Transistor Q0841 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal HOOK is pulled to ground level. This switches off R0841and the resulting high level at µP port PA1 informs the µP about the closed hang up switch. The µP will inform the host radio about any status change on the HOOK line via SBEP bus.

2.8 Speaker

The controlhead contains a speaker for the receiver audio. The receiver audio signal from the differential audio output of the audio amplifier located on the radio’s controller is fed via connector J0801-10, 11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected to the speaker connector P0801. The controlhead speaker can be disconnected if an external speaker, connected on the accessory connector, is used.

2.9 Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the controlhead by diodes VR0811 VR00812 VR0816 - VR0817. The diodes limit any transient voltages to tolerable levels. The associated capacitors provide Radio Frequency Interference (RFI) protection.


The controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector, several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio status, and a 14 character Liquid Crystal Display (LCD) for alpha - numerical information e.g. channel number or call address name. To control the LEDs and the LCD, and to communicate with the host radio the controlhead uses the Motorola 68HC11E9 microprocessor.

3.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector J0801 pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at battery level and is used for the LEDs, the back light and to power up the radio via On /Off /Volume knob. The stabilized +5 volt is used for the microprocessor, the display, the display driver and the keypad buttons. The voltage USW 5V derived from the FLT A+ voltage and stabilized by the series combination of R0822, VR0822 is used to buffer the internal RAM of the microprocessor (U0831). C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Dual diode D0822 prevents radio circuitry from discharging this capacitor. When the supply voltage is applied to the radio, C0822 is charged via R0822 and D0822. To avoid that the µP enters the wrong mode when the radio is switched on while the voltage across C0822 is still too low, the regulated 5V charge C0822 via diode D0822.

3.2 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s voltage regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital transistor Q0822 informs the controlhead’s microprocessor about the pressed knob. The microprocessor asserts pin 62 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts via Q0823 and D0821. The high line ON OFF CONTROL also informs the host radio, that the


controlhead’s microprocessor wants to send data via SBEP bus. When the radio returns a data request message, the microprocessor will inform the radio about the pressed knob. If the radio was switched off, the radio’s µP will switch it on and vice versa. If the On/Off/Volume knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF CONTROL and sends a data request message. The controlhead µP will inform the radio about the pressed knob and the radio’s µP will switch the radio off.


The controlhead uses the Motorola 68HC11E9 microprocessor (µP) (U0831) to control the LEDs and the LCD and to communicate with the host radio. RAM and ROM are contained within the microprocessor itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8 MHz ceramic resonator (U0833) and R0920 .

The microprocessor’s RAM is always powered to maintain parameters such as the last operating mode. This is achieved by maintaining 5V at µP pin 25 . Under normal conditions, when the radio is off, USW 5V is formed by FLT A+ running to D0822. C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP . They are labeled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP . If this voltage is lower than +5V the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type and the controlhead ID by reading the levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic “1” for it to start executing correctly. The XIRQ and the IRQ pins should also be at a logic “1”.

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes below 4.5 volts. This is used to reset the controller to prevent improper operation.


The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This bus uses only line BUS+ for data transfer. The line is bi-directional, meaning that either the radio or the controlhead µP can drive the line. The microprocessor sends serial data via pin 50 and D0831 and it reads serial data via pin 47. Whenever the microprocessor detects activity on the BUS+ line, it starts communication.

When the host radio needs to communicate to the controlhead µP , it sends data via line BUS+. Any transition on this line generates an interrupt and the µP starts communication. The host radio may send data like display information, LED and back light status or it may request the controlhead ID or the keypad ID.


When the controlhead µP wants to communicate to the host radio, the µP brings request line CH REQUEST to a logic “0” via µP pin 62. This switches on Q0823, which pulls line ON OFF CONTROL high through diode D0821. A low to high transition on this line informs the radio, that the controlhead requires service. The host radio then sends a data request message via BUS+ and the controlhead µP replies with the data it wanted to send. This data can be information like which key has been pressed or that the volume knob has been rotated.


3.5 Keypad Keys

The controlhead keypad is a 6-key kepad (Model B) or a 10- key keypad (model C). All keys are configured as 2 analogue lines read by µP pins 13 and 15. The voltage on the analogue lines varies between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the voltage at both lines will be 5 volts. The key configuration can be thought of as a matrix, where the two lines represent one row and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce the voltages on the analogue lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both lines must be considered.

An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a keypad microphone, connected to the microphone connector J0811. Any microphone key press is processed the same way as a key press on the controlhead.


All the indicator LEDs (red, yellow, green) are driven by current sources. To change the LED status the host radio sends a data message via SBEP bus to the controlhead µP . The controlhead µP determines the LED status from the received message and switches the LEDs on or off via port PB 7 – 0 and port PA4. The LED status is stored in the µP ’s memory. The LED current is determined by the resistor at the emitter of the respective current source transistor.

The back light for the LCD and the keypad is controlled by the host radio the same way as the indicator LEDs using µP port PA 5. This port is a Pulse Width Modulator (PWM) output. The output signal charges capacitor C0843 through R0847. By changing the pulse width under software control, the dc voltage of C0843 and thereby, the brightness of the back light can be changed in four steps. The keypad back light current is drawn from the FLT A+ source and controlled by transistor Q0933. The current flowing through the LEDs cause a proportional voltage drop across the parallel resistors R0947, R0948. This voltage drop is amplified by the op-amp U0931-2. U0931-2 and Q0934 form a differential amplifier. The voltage difference between the base of Q0934 and the output of U0931-2 determines the current from the base of the LED control transistor Q0933 and in turn the brightness of the LEDs. The µP can control the LEDs by changing the dc level at the base of Q0934. If the base of Q0934 is at ground level, Q0934 is switched off and no current flows through Q0933 and the LEDs. If the base voltage of Q0934 rises a current flows through Q0934 and in turn through Q0933 causing the LEDs to turn on and a rising voltage drop across R0947, R0948. The rising voltage causes the output of the op-amp to rise and to reduce the base to emitter voltage of Q0934. This decreases the current of Q0933 until the loop has settled.


3.7 Liquid Crystal Display (LCD)

The LCD H0971 uses the display driver U0971. The display is a single layer super twist nematic (STN) LCD display. It has 14 characters with a 5*8 dot matrix for displaying alpha - numerical information and a line with 21 pre - defined icons above the dot matrix

The driver contains a data interface to the µP, an LCD segment driver, an LCD power circuit, an oscillator, data RAM and control logic. At power up the driver’s control logic is reset by a logic “0” at input SR2 (U0971-15). The driver’s internal oscillator is set to about 20 kHz and can be measured at pin 22. The driver’s µP interface is configured to accept 8 bit parallel data input (U0971-D0-D7) from the controlhead µP (U0831 port PC0-PC7).

To write data to the driver’s RAM the µP sets chip select (U0971-20) to logic “0” via U0831-11, RD (U0971-18) to logic “1” via (U0831-10) and WR (U0971-17) to logic “0” via U0831-9. With input A0 (U0971-21) set to logic “0” via U0831-12 the µP writes control data to the driver. Control data includes the RAM start address for the following display data. With input A0 set to logic “1” the µP then writes the display data to the display RAM. When data transfer is complete the µP terminates the chip select, RD and WD activities.

The display driver’s power circuit provides the voltage supply for the display. This circuit consists of a voltage multiplier, voltage regulator and a voltage follower. The external capacitors C0971 - C0973 configure the multiplier to double the supply voltage. In this configuration the multiplier output VOUT (U0971-8) supplies a voltage of -5V (2* -5V below VDD). The multiplied voltage VOUT is sent to the internal voltage regulator. To set the voltage level of the regulator output V5 (U0971-5) this voltage is divided by the resistors R0973 and R0974 and fed back to the reference input VR (U0971-6). In addition the regulator output voltage V5 can be controlled electronically by a control command sent to the driver. With the used configuration the voltage V5 is about –2V. The voltage V5 is resistively divided by the driver’s voltage follower to provide the voltages V1 - V4. These voltages are needed for driving the liquid crystals. The level of V5 can be measured by one of the µP’s analogue to digital converters (U0831-20) via resistive divider R0975, R0976. To stabilize the display brightness over a large temperature range the µP measures the temperature via analogue to digital converter (U0831-18) using temperature sensor U0834. Dependent on the measured temperature the µP adjusts the driver output voltage V5, and in turn the display brightness, via parallel interface.






When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode VR0821 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware into the radio’s flash memory (See controller sub section for more details).

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0841. Transistor Q0841 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal HOOK is pulled to ground level. This switches off R0841 and the resulting high level at µP port PA1 informs the µP about the closed hang up switch. The µP will inform the host radio about any status change on the HOOK line via SBEP bus.

3.9 Speaker

The controlhead contains a speaker for the receiver audio. The receiver audio signal from the differential audio output of the audio amplifier located on the radio’s controller is fed via connector J0801-10, 11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected to the speaker connector P0801. The controlhead speaker can be disconnected if an external speaker, connected on the accessory connector, is used.


Electrostatic transient protection is provided for the sensitive components in the controlhead by diodes VR0811 VR00812 VR0816 - VR0817. The diodes limit any transient voltages to tolerable levels. The associated capacitors provide Radio Frequency Interference (RFI) protection.



The controlhead contains the On/Off/Volume knob, the microphone connector, several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio status, and a Liquid Crystal Display (LCD) with 21 pre - defined symbols and a 32*96 dot matrix for graphical or alpha - numerical information e.g. channel number, select code, call address name. To control the LEDs and the LCD, and to communicate with the host radio the controlhead uses the Motorola 68HC11K4 microprocessor.

4.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector J0801 pin 3. The voltage FLT A+ is at battery level and is used for the LEDs, the back light, to power up the radio via On/Off/Volume knob and to supply the voltage regulator circuitry. The regulator circuitry provides the stabilized +5 volts which is used for the microprocessor circuitry, the display, the display driver and the keypad buttons. The regulated +5V taken from the host radio via connector J0801 pin 7 (line 5V SOURCE) is only used to switch on or off the voltage regulator in the control-head.

4.2 Voltage Regulator Circuit

Voltage regulator U0861provides 5V for the controlhead. The supply voltage FLT A+ for the voltage regulator is fed via parallel resistors R0861/2 and dual diode D0861 to pin 8 of U0861. The +5 volt output is switched on and off by the host radios’s 5 volt source via line 5V SOURCE and control transistor Q0866. When the host radio is switched off the voltage on line +5V SOURCE is at ground level and switches off transistor Q0866. Pull up resistor R0863 pulls input SHUTDOWN (pin 3) of the voltage regulator U0861 to FLT A+ level and switches off the output of U0861 (pin 1). When the host radio is switched on the voltage on line 5V SOURCE of about +5 volts switches on transistor Q0866 which in turn pulls input SHUTDOWN (pin 3) to ground and switches on the output of U0861. Input and output capacitors (C0861 / C0862 and C0864 / C0865) are used to reduce high frequency noise and provide proper operation during battery transients. Diode D0861 prevents discharge of C0862 by negative spikes on the FLT A+ voltage. This regulator provides a reset output (pin 5) that goes to 0 volts if the regulator output goes out of regulation. This is used to reset the microprocessor (U0871) and the display driver (J0821-5) to prevent improper operation.

The voltage USW 5V derived from voltage FLT A+ is stabilized using resistor R0855 and diode VR0855 This voltage is used to buffer the microprocessor’s internal RAM. C0856 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0855 prevents radio circuitry from discharging this capacitor. The +5V at the second anode of D0855 speeds up charging of C0856, when the host radio is turned on by a high level at the ignition input while the supply voltage is applied to the radio. This prevents the microprocessor from accidently entering bootstrap mode.

4.3 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s and the controlhead’s voltage regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0852. Additionally, 5 volts at the base of digital transistor Q0853 informs the controlhead’s microprocessor about the pressed knob. The microprocessor asserts pin 8 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts via Q0852 and D0852. The high line ON OFF CONTROL also informs the host radio, that the controlhead’s microprocessor wants to send data via SBEP bus. When the radio returns a data request message, the microprocessor will inform the radio about the pressed knob.


If the radio was switched off, the radio’s µP will switch it on and vice versa. If the On/Off/Volume knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF CONTROL and sends a data request message. The controlhead µP will inform the radio about the pressed knob and the radio’s µP will switch the radio off. If the radio is switched on either manually or automatically it’s +5V source switches on the controlhead’s voltage regulator U0861 via line 5 SOURCE and transistor Q0866 and the controlhead’s microprocessor starts execution.


The controlhead uses the Motorola 68HC11K4 microprocessor (µP) (U0871) to control the LEDs and the LCD and to communicate with the host radio. RAM and ROM are contained within the microprocessor itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8 MHz ceramic resonator (U0873) and R0873.

The microprocessor’s RAM is always powered to maintain parameters such as the last operating mode. This is achieved by maintaining 5V at µP pin 76. Under normal conditions, when the radio is off, USW 5V is formed by FLT A+ running to D0855. C0856 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0855 prevents radio circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP. They are labeled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP. If this voltage is lower than +5V the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type by reading the level at port PE5. Connections S0931 – S0935 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic “1” for it to start executing correctly. The XIRQ and the IRQ pins should also be at a logic “1”.


The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This bus uses only line BUS+ for data transfer. The line is bi-directional, meaning that either the radio or the controlhead µP can drive the line. The microprocessor sends serial data via pin 79 and D0872 and it reads serial data via pin 78. Whenever the microprocessor detects activity on the BUS+ line, it starts communication.

When the host radio needs to communicate to the controlhead µP, it sends data via line BUS+. Any transition on this line generates an interrupt and the µP starts communication. The host radio may send data like display information, LED and back light status or it may request the controlhead ID or the keypad ID.


When the controlhead µP wants to communicate to the host radio, the µP brings request line CH REQUEST to a logic “0” via µP pin 8. This switches on Q0852, which pulls line ON OFF CONTROL high through diode D0852. A low to high transition on this line informs the radio, that the controlhead requires service. The host radio then sends a data request message via BUS+ and the controlhead µP replies with the data it wanted to send. This data can be information like which key has been pressed or that the volume knob has been rotated.


4.6 Keypad Keys

The controlhead keypad is a 25 - key keypad. All keys are configured as 2 analogue lines read by µP pins 49 and 48. The voltage on the analogue lines varies between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the voltage at both lines will be 5 volts. The key configuration can be thought of as a matrix, where the two lines represent one row and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce the voltages on the analogue lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both lines must be considered.

An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a keypad microphone, connected to the microphone connector J0811. Any microphone key press is processed the same way as a key press on the controlhead.


All the indicator LEDs (red, yellow, green) are driven by current sources. To change the LED status the host radio sends a data message via SBEP bus to the controlhead µP. The controlhead µP determines the LED status from the received message and switches the LEDs on or off via port PA 6 - 4. The LED status is stored in the µP’s memory. The LED current is determined by the resistor at the emitter of the respective current source transistor.

The back light for keypad is controlled by the host radio the same way as the indicator LEDs using µP port PH 3. This port is a Pulse Width Modulator (PWM) output. The output signal charges capacitor C0943 through R0945. By changing the pulse width under software control, the dc voltage of C0943 and thereby, the brightness of the back light can be changed in 16 steps. The keypad back light current is drawn from the FLT A+ source and controlled by transistor Q0941. The current flowing through the LEDs cause a proportional voltage drop across the parallel resistors R0955, R0957. This voltage drop is amplified by the op-amp U0941-1. U0941-1 and Q0943 form a differential amplifier. The voltage difference between the base of Q0943 and the output of U0941-1 determines the current from the base of the LED control transistor Q0941 and in turn the brightness of the LEDs. The µP can control the LEDs by changing the dc level at the base of Q0943. If the base of Q0943 is at ground level, Q0943 is switched off and no current flows through Q0941 and the LEDs. If the base voltage of Q0943 rises a current flows through Q0943 and in turn through Q0941 causing the LEDs to turn on and a rising voltage drop across R0955, R0957. The rising voltage causes the output of the op-amp to rise and to reduce the base to emitter voltage of Q0943. This decreases the current of Q0941 until the loop has settled.


The back light for the LCD module uses a similar circuitry. The only differences are that µP port PH2 controls the back light brightness and that the LEDs are located on the LCD module which is connected via J0821. Control line BL A GREEN connects to the anodes and control line BL K GREEN connects to the cathodes of the LEDs.

4.8 Liquid Crystal Display (LCD)

The LCD module consists of the display and the display driver and is connected via connector J0821. The display is a single layer super twist nematic (STN) LCD display. It has a dot matrix of 32 * 96 dots for displaying graphics and alpha - numerical information and a line with 21 pre - defined icons above the dot matrix

The driver contains a data interface to the µP, an LCD segment driver, an LCD power circuit, an oscillator, data RAM and control logic. At power up the driver’s control logic is reset by a logic “0” via pin 5 of J0821. The driver’s µP interface is configured to accept 8 bit parallel data input (J0821-D0-D7) from the controlhead µP (U0871 port PC0-PC7).

To write data to the driver’s RAM the µP sets chip select (J0821-6) to logic “0” via U0871-26, RD (J0821-10) to logic “1” via (U0871-40) and WR (U0821-9) to logic “0” via U0871-33. With input A0 (J0821-8) set to logic “0” via U0871-34 the µP writes control data to the driver. Control data includes the RAM start address for the following display data. With input A0 set to logic “1” the µP then writes the display data to the display RAM. When data transfer is complete the µP terminates the chip select and the clock activities.

The display driver’s power circuit provides the voltage supply for the display. This circuit consists of a voltage multiplier, voltage regulator and a voltage follower. The regulator output voltage for the display can be controlled electronically by a control command sent to the driver. The voltage level can be measured by one of the µP’s analogue to digital converters (U0871-42) via J0821-21. To stabilize the display brightness over a large temperature range the µP measures the temperature via analogue to digital converter (U0871-43) using a temperature sensor on the module (J0821-4). Dependent on the measured temperature the µP adjusts the driver output voltage, and in turn the display brightness, via parallel interface.






When line PTT IRDEC is connected to FLT A+ level, transistor Q0851 is switched on through diode VR0851 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware into the radio’s flash memory (See controller sub section for more details).

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0883. Transistor Q0872 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal HOOK is pulled to ground level. This switches off R0883 and the resulting high level at µP port PA1 informs the µP about the closed hang up switch. The µP will inform the host radio about any status change on the HOOK line via SBEP bus.

4.10 Speaker (Remote Mount Configuration only)

The remote mount controlhead contains a speaker for the receiver audio. The receiver audio signal from the differential audio output of the audio amplifier located on the radio’s controller is fed via connector J0801-10,11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected to the speaker connector P0801. The controlhead speaker can be disconnected if only an external speaker, connected on the accessory connector, should be used. If the controlhead is mounted directly on the radio, an external speaker is required.


Electrostatic transient protection is provided for the sensitive components in the controlhead by diodes VR0811 - VR0814. The diodes limit any transient voltages to tolerable levels. The associated capacitors provide Radio Frequency Interference (RFI) protection.

3-1

Section 3

TROUBLESHOOTING CHARTS

1.0 Controlhead GM328 Troubleshooting Flow Chart

1.1 On/Off

Radio cannot be switched on via ON/OFF/Volume Knob

NO

YES

YES

NO

R0823 Pin TAB= 5V ?

R0823 Pin TAB1when pressed

= 5V ?

Check / Replace Volume Pot R0823

Check / ReplaceR0822 / VR0822 /

D0822

NO

YESJ0801 Pin 2

> 10V ?

Check / ReplaceQ0821

Check / ReplaceQ0822 / R0821

YES

NOJ0801 Pin 2=5V ?

Check / ReplaceD0821 / R0852

Press and holdOn/Off/Volume Knob

3-2 Controlhead GM328 Troubleshooting Flow Chart

1.2 Microprocessor

Power Up Alert Tone is OK but volume knob does not operate and no indicator is on

NO

YES

YES

NO

YES

NO

YES

NO

YES

EXTALU0831 Pin 31= 8.00 MHz ?

RESETTP0833

= HIGH ?

Check / ReplaceC0833 / R0832 / U0831

Check radio controllerData Signal

on J0801 Pin 5BUS+ ?

Data Signalon TP0836SCI_RX ?

NO

Data Signalon TP0837SCI_TX ?

Check / ReplaceR0831 / U0833 / U0831

Check / ReplaceR0837 / R0836

Check / ReplaceU0831


Measure with scope while rotating Volume Pot

Controlhead GM338 Troubleshooting Flow Chart 3-3


2.1 On/Off

Radio cannot be switched on via ON/OFF/Volume Knob

NO

YES

YES

NO

R0823 Pin TAB= 5V ?

R0823 Pin TAB1when pressed

= 5V ?

Check / Replace Volume Pot R0823

Check / ReplaceR0822 / VR0822 /

D0822 / C0822

NO

YESJ0801 Pin 2

> 10V ?



YES

NOJ0801 Pin 2=5V ?


Press and holdOn/Off/Volume Knob


2.2 Microprocessor

Power Up Alert Tone is OK but volume knob does not operate and no indicator is on

NO

YES

YES

NO

YES

NO

YES

NO

YES

EXTALU0831 Pin 31= 8.00 MHz ?

RESETTP0833

= HIGH ?

Check / ReplaceC0833 / R0832 / U0831

Check radio controllerData Signal

on J0801 Pin 5BUS+ ?

Data Signalon TP0836SCI_RX ?

NO

Data Signalon TP0837SCI_TX ?

Check / ReplaceR0831 / U0833 / U0831


Check / ReplaceU0831


Measure with scope while rotating Volume Pot


2.3 Display

Power Up Alert Tone is OK, volume knob does operate,indicator/backlight is on but nothing on display

YES

NO

YES

NO

V5 (against 5V)TP0973 between

-6V and -7V ?

Activity onAddress & Data lines

A0 / D0..D7 / CS1of U0971?

Check for shortageU0831 / U0971

Check LCD Assembly

Check / ReplaceC0971 / C0973 / R0972R0973 / R0974 / U0971


2.4 Backlight

Power Up Alert Tone is OK, volume knob does operate,indicator/display is on but no backlight

NO

YES

YES

NO

U0831 Pin 58is toggling ?

Base of Q0934

> 0.7V ?

Check / Replace R0847 / C0843 / R0943

Check for shortageU0831

YES

NOCollector ofQ0934

>5V and < 11V ?

Check / ReplaceQ0934 U0931 /R0941 / R0942 / R0944 / R0945

Check / ReplaceQ0933 / R0947 / R0948



3.1 On/Off

R0854Pin TAB1

when pressed=5V ?

J0801 PIN2> 10V ?

J0801 PIN2 =5V?


YES

NO

YES

NO

YES

NOCheck / ReplaceD0852 / R0852

Check / ReplaceVolume Pot R0854


Radio can not be switched on via ON/OFF/Volume Knob

YES

R0854Pin TAB= 5V?

NOCheck / Replace

R0855 / VR0855 / D0855C0856

Press and holdOn/Off/

Volume Knob


3.2 Microprocessor

Power Up Alert Tone is audible on external speaker but volumeknob does not operate and no indicators are on

TP0876=5V ?

NO

YES

U0871Pin 73 EXTAL

= 8 MHz

TP0866

= 0VNO

Check / ReplaceR0873 / U0873 /

U0871

Check / ReplaceR0866 / C0866 / Q0866 / R0863

Check / ReplaceR0861 / R0862 / D0861C0861 / C0862 / U0861C0863 / C0864 / C0865

NO

YES YES

A


3.3 Microprocessor (cont.)

Data Signalon J0801

Pin 5 BUS+?

Data Signalon TP0877

SCI_RX?

Data Signalon TP0878

SCI_TX ?


YES

YES

YES

NO

NO

NOCheck / Replace

U0871

Check Radio Controller


Measure with scopewhile rotatingVolume Pot

A


3.4 Display

TP0973Voltage Sense

between 2V and 2.4V

?

Activity onAddress & Data linesA0 / D0...D7 / CS1

of U0971?

NO

YES

YES

NO

Check / ReplaceFlex connection

Resistors on Address & Datalines and LCD Module

Check / Replace LCD Module

Check for shortageU0871

Power Up Alert Tone is audible, volume knob does operate,indicator/backlight is on but nothing is seen on the display.


3.5 Keypad Backlight


Base of Q0943> 0.7V ?

Collector ofQ0943

>5V & < 11V ?


YES

YES

YES

NO

NO

NOCheck / Replace

Q0943 / U0941 / R0941R0943 / R0949 / R0951

Check for shortage U0871

Check / ReplaceR0945 / C0943 / R0947

Power Up Alert Tone is audible, volume knob does operate,display is on but no keypad backlight.


3.6 Display Backlight


Base of Q0963> 0.7V ?

Collector ofQ0963

>5V & < 11V ?


YES

YES

YES

NO

NO

NOCheck / Replace

Q0963 / U0941 / R0961R0963 / R0969 / R0971

Check for shortage U0871

Check / ReplaceR0965 / C0963 / R0967

Power Up Alert Tone is audible, volume knob does operate,display is on but no display backlight.

4-1

Section 4

CONTROLHEAD PCBS / SCHEMATICS / PARTS LISTS

1.0 Allocation of Schematics and Circuit Boards

.

Table 4-1 Controlhead Diagrams and Parts Lists

PCB :Controlhead GM328

8486146B07 Main Board Top Side8486146B07 Main Board Bottom Side

Page 4-3Page 4-3

SCHEMATICSSheet 1 of 2Sheet 2 of 2

Page 4-4Page 4-5

Parts List8486146B07 Page 4-6




Page 4-7Page 4-7

SCHEMATICSSheet 1 of 4Sheet 2 of 4Sheet 3 of 4Sheet 4 of 4

Page 4-8Page 4-9Page 4-10Page 4-11





Page 4-13Page 4-13

SCHEMATICSSheet 1 of 4Sheet 2 of 4Sheet 3 of 4Sheet 4 of 4

Page 4-14Page 4-15Page 4-16Page 4-17


4-2 Allocation of Schematics and Circuit Boards


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0

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SEG69_C70

SEG6_C7SEG7_C8SEG8_C9SEG9_C10

0

SEG61_C62SEG62_C63SEG63_C64SEG64_C65SEG65_C66SEG66_C67SEG67_C68SEG68_C69

SEG54_C55SEG55_C56SEG56_C57SEG57_C58SEG58_C59SEG59_C60

SEG5_C6

SEG60_C61

SEG47_C48SEG48_C49SEG49_C50

SEG4_C5

SEG50_C51SEG51_C52SEG52_C53SEG53_C54

SEG3_C4

SEG40_C41SEG41_C42SEG42_C43SEG43_C44SEG44_C45SEG45_C46SEG46_C47


SEG25_C26SEG26_C27SEG27_C28SEG28_C29SEG29_C30

SEG2_C3

SEG30_C31SEG31_C32

SEG18_C19SEG19_C20

SEG1_C2

SEG20_C21SEG21_C22SEG22_C23SEG23_C24SEG24_C25


COM3_R4COM4_R5COM5_R6COM6_R7COM7_NC

COMS

NC

SEG0_C1

04B

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0971

COM0_R1COM1_R2COM2_R3

5V5

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8VOUT 6VR

13VSS

17WR

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57 SEG858 SEG9

16SR115SR2

1V1 2V2 3V3 4V4

121 SEG72122 SEG73123 SEG74124 SEG75125 SEG76126 SEG77127 SEG78128 SEG79

114 SEG65115 SEG66116 SEG67117 SEG68118 SEG69

56 SEG7

119 SEG70120 SEG71

107 SEG58108 SEG59

55 SEG6

109 SEG60110 SEG61111 SEG62112 SEG63113 SEG64


92 SEG4393 SEG4494 SEG4595 SEG4696 SEG4797 SEG48

SEG4998

54 SEG5

85 SEG3686 SEG3787 SEG3888 SEG39

53 SEG4

89 SEG4090 SEG4191 SEG42

78 SEG29

52 SEG3




51 SEG2

69 SEG20

14M_S

18RD

49 SEG050 SEG1

59 SEG1060 SEG1161 SEG1262 SEG13

25D1 26D227D328D429D530D631D7

22FR

38 COM639 COM7

40 COM841 COM9

48 COMS

20CS119CS2

24D0

44 COM1245 COM1346 COM1447 COM15

34 COM235 COM336 COM437 COM5

12CAP1_POS

9CAP2_NEG10CAP2_POS

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42 COM1043 COM11

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C0812C0813

C0815 C0816

C0817 C0818

C0819

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C08

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C0826

C0827

C0828

C0829

C0830

C0831

C0832

C0833

C0834

C0835

C0836

C0837

C0838

C0840

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NU

4.7K

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7010

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NU

NU

C09

66

270

R09

93

Q09

93

R09

9747

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KR

0996

R09

9547

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NU

D09

76

NU

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64

BL_

KP

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BL_

KP

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D

BL_

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N

BL_

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FLT

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FLT

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LED

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DLE

D_Y

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OW

LED

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EE

N

FLT

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BL_

A_G

RE

EN

FLT

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BL_

K_G

RE

EN

BL_

A_R

ED

FLT

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BL_

K_R

ED

FLT

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FLT

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FLT

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ZW

G01

3037

2-A

Co

ntr

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ead

GM

398

- S

chem

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Sh

eet

3 o

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ZW

G01

3037

2-A

Con

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head

GM

398

- P

CB

848

6178

B03

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chem

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s4-

17

AN

ALO

G_IN

PU

T_2

J0821

GN

D

VD

D

D0

D1

D2

MIC

Back

light_

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RE

EN

Back

light_

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ED

CS

1

CS

2

A0 (

Com

mand)

CO

NN

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TO

R

HA

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Back

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D

GN

D

GN

D

HO

OK

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Tem

p_S

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t

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R/W

(W

R)

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PT

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R

BU

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D7

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D M

OD

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0 NU

470pF

NU

C0804

C0835

100pF

100pF

C0834

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100pF

NU

NU

C0833

100pF

C0832

NU

R0815

10

100pF

C0827

C0826

100pF

NU

C0825

NU

J0801-1

4

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J0801-1

J0801-2

J0801-3

J0821-2

5

J0821-2

4

J0821-1

0

R0833

100

R0832

100

J0821-2

1

J0801-5

2

J0821-2

0

J0801-6

J0801-7

100pF

NU

C0816

C0824

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J0811-7

J0811-6

J0821-1

3

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1

J0821-1

2

J0801-9

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P0801-2

NU

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J0801-8J0

811-1

0 C0815

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C0813

C0811

470pF

470pF

R0816

270

R0817

13K

R0812

13K

C0805

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VR

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20V

VR

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20V

R0838

100

100

R0834

R0831

100

R0828

100

J0801-4

R0826

100

R0825

100

R0824

0 NU

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3

C0806

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60 1 3 4 5

VR

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3

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22

R0814

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NU

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22

J0821-4

J0821-2

J0821-3

J0811-9

C0823

NU

NU

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NU

100pF

C0829

C0828

100pF

R0840

100

J0811-5

R0837

100

R0836

100

R0835

100

C0817

R0818

82pF

51K

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J0821-1

8

J0821-1

7

0

J0821-1

6

J0821-1

4

R0821

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7

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J0821-1

J0821-9

J0821-7

J0821-8

J0821-6

C0831

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NU

NU

NU

470pF

C0810

NU

470pF

C0819

470pF

C0818

C0830

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NU

NU

J0821-2

2

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C0838

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100pF

NU

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J0821-2

6

C0837

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J0811-3

J0811-1

J0811-2

TP

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5

TP

0804

VR

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NU

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0

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NU

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s

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2010

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EN

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DD

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EN

D09

5248

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DD

0953

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EN

D09

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DD

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D G

RE

EN

D09

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DD

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D G

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EN

D09

5848

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DD

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D G

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D09

6048

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DD

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D G

RE

EN

D09

6248

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DD

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171B

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D G

RE

EN

D09

6448

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DD

0965

4886

171B

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D G

RE

EN

D09

6648

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DD

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4886

171B

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D G

RE

EN

D09

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DD

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171B

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EN

D09

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LED

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DD

0971

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RE

EN

D09

7248

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1B01

LED

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DD

0973

4886

171B

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D G

RE

EN

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7448

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LED

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DD

0975

4886

171B

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RE

EN

D09

7648

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LED

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DD

0977

4886

171B

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D G

RE

EN

D09

7848

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LED

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DD

0979

4886

171B

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D G

RE

EN

D09

8048

8617

1B01

LED

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DD

0981

4886

171B

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D G

RE

EN

D09

8248

8617

1B01

LED

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DD

0983

4886

171B

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D G

RE

EN

D09

8448

8617

1B01

LED

RE

DD

0985

4886

171B

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D G

RE

EN

D09

8648

8617

1B01

LED

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DD

0987

4886

171B

04LE

D G

RE

EN

D09

8848

8617

1B01

LED

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DD

0989

4886

171B

04LE

D G

RE

EN

D09

9048

8617

1B01

LED

RE

DD

0991

4886

171B

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D R

ED

D09

9248

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1B03

LED

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WD

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171B

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D G

RE

EN

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109

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6Y02

CO

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2 P

INJ0

811

2864

287B

01C

ON

N T

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0 P

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AC

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821

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IF H

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ON

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25M

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TQ

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4805

921T

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UA

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OH

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MC

2 R

HQ

0852

4805

921T

02D

UA

L R

OH

M F

MC

2 R

HQ

0853

4880

048M

01N

PN

DIG

47k

/47k

Q08

6648

8004

8M01

NP

N D

IG 4

7k/4

7kQ

0871

4880

048M

01N

PN

DIG

47k

/47k

Q08

7248

8004

8M01

NP

N D

IG 4

7k/4

7kQ

0941

4813

822A

08P

NP

25V

5A

MJD

210T

4

Cir

cuit

R

efM

oto

rola

Par

t N

oD

escr

ipti

on

Q09

4248

1382

2A08

PN

P 2

5V 5

A M

JD21

0T4

Q09

4348

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

4448

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

6148

1382

2A08

PN

P 2

5V 5

A M

JD21

0T4

Q09

6248

1382

2A08

PN

P 2

5V 5

A M

JD21

0T4

Q09

6348

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

6448

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

9148

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

9248

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q09

9348

1382

4A10

NP

N 4

0V .2

A B

=50

-150

R08

1106

6205

7A90

51k

1/16

W 5

%R

0812

0662

057A

7613

k 1/

16W

5%

R08

1306

6205

7A09

22 1

/16W

5%

R08

1406

6205

7A09

22 1

/16W

5%

R08

1506

6205

7A01

10 1

/16W

5%

R08

1606

6205

7A35

270

1/16

W 5

%R

0817

0662

057A

7613

k 1/

16W

5%

R08

1806

6205

7A90

51k

1/16

W 5

%R

0821

0662

057B

470

1/16

WR

0823

0662

057B

470

1/16

WR

0825

0662

057A

2510

0 1/

16W

5%

R08

2606

6205

7A25

100

1/16

W 5

%R

0827

0662

057A

2510

0 1/

16W

5%

R08

2806

6205

7A25

100

1/16

W 5

%R

0831

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057A

2510

0 1/

16W

5%

R08

3206

6205

7A25

100

1/16

W 5

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0833

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057A

2510

0 1/

16W

5%

R08

3406

6205

7A25

100

1/16

W 5

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0835

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057A

2510

0 1/

16W

5%

R08

3606

6205

7A25

100

1/16

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0837

0662

057A

2510

0 1/

16W

5%

R08

3806

6205

7A25

100

1/16

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0840

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057A

2510

0 1/

16W

5%

R08

5206

6205

7A49

1k 1

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5%

R08

5306

6205

7A73

10k

1/16

W 5

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0854

1805

911V

02P

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VO

LR

0855

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057A

8224

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5%

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5606

6205

7A65

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0861

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057A

0110

1/1

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057A

0110

1/1

6W 5

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0863

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057A

9710

0k 1

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R08

6606

6205

7A73

10k

1/16

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057A

572k

2 1/

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5%

R08

7206

6205

7B47

0 1/

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R08

7306

6205

7B22

1M 1

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5%

R08

7406

6205

7A25

100

1/16

W 5

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0875

0662

057A

8947

k 1/

16W

5%

R08

7606

6205

7B47

0 1/

16W

R08

7806

6205

7B47

0 1/

16W

R08

8006

6205

7A57

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0881

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7310

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16W

5%

Cir

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R08

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6205

7A89

47k

1/16

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0883

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057A

7310

k 1/

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5%

R08

8406

6205

7A73

10k

1/16

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0885

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057A

7310

k 1/

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5%

R08

8606

6205

7A89

47k

1/16

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%R

0887

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057A

7310

k 1/

16W

5%

R08

8806

6205

7A73

10k

1/16

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0889

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057A

8533

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5%

R08

9006

6205

7A35

270

1/16

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0901

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9051

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R09

0206

6205

7A76

13k

1/16

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0903

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8122

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R09

0406

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7A88

43k

1/16

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0905

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R09

1106

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7A90

51k

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7613

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R09

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6205

7A81

22k

1/16

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0914

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8843

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R09

1506

6205

7B01

130K

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9051

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R09

3206

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7A76

13k

1/16

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0933

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8122

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5%

R09

4106

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7A73

10k

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0942

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Controller

Service Information


i

Table of Contents


1.0 Controller Circuits ................................................................................................1-11.1 Overview.........................................................................................................1-11.2 General...........................................................................................................1-11.3 Radio Power Distribution ................................................................................1-21.4 Electronic ON/OFF .........................................................................................1-41.5 Emergency .....................................................................................................1-41.6 Mechanical ON/OFF.......................................................................................1-51.7 Ignition ............................................................................................................1-51.8 Microprocessor Clock Synthesizer .................................................................1-51.9 Serial Peripheral Interface (SPI).....................................................................1-61.10 SBEP Serial Interface.....................................................................................1-71.11 General Purpose Input/Output........................................................................1-71.12 Normal Microprocessor Operation..................................................................1-81.13 FLASH Electronically Erasable Programmable Memory(FLASH EEPROM)1-101.14 Electrically Erasable Programmable Memory (EEPROM)............................1-101.15 Static Random Access Memory (SRAM)......................................................1-10

2.0 Controller Board Audio and Signalling Circuits ..................................................1-112.1 General - Audio Signalling Filter IC with Compander (ASFIC CMP) ............1-112.2 Transmit Audio Circuits ................................................................................1-112.3 Transmit Signalling Circuits ..........................................................................1-142.4 Receive Audio Circuits .................................................................................1-162.5 Receive Signalling Circuits ...........................................................................1-192.6 Voice Storage (optional) ...............................................................................1-20


1.0 Controller Troubleshooting Chart.........................................................................2-1

ii

Section 3 Controller Schematics / Parts Lists

1.0 Allocation of Schematics and Circuit Boards .......................................................3-11.1 Controller Circuits...........................................................................................3-11.2 Voice Storage Facility.....................................................................................3-1

2.0 Controller T5 / Schematic Diagrams....................................................................3-3Controller T5 Schematic Diagram - Controller Overall ...........................................3-3Controller T5 Schematic Diagram - Supply Voltage ...............................................3-4Controller T5 Schematic Diagram - Audio ..............................................................3-5Controller T5 Schematic Diagram - I/O ..................................................................3-6Controller T5 Schematic Diagram - Microprocessor...............................................3-7Controller T5 Schematic Diagram - Voice Storage.................................................3-82.1 Controller T5 Parts List...................................................................................3-9

3.0 Controller T7/T9 Schematic Diagrams...............................................................3-12Controller T7/T9 Schematic Diagram - Overall.....................................................3-12Controller T7/T9 Schematic Diagram - Supply Voltage........................................3-13Controller T7/T9 Schematic Diagram - Audio....................................................... 3-14Controller T7 only Schematic Diagram - I/O.........................................................3-15Controller T9 only Schematic Diagram - I/O........................................................3-16Controller T7 only Schematic Diagram - Microprocessor .....................................3-17Controller T9 only Schematic Diagram - Microprocessor .....................................3-18Controller T7/T9 Schematic Diagram - Voice Storage ......................................... 3-193.1 Controller T7 Parts List.................................................................................3-203.2 Controller T9 Parts List.................................................................................3-23

1-1

Section 1

THEORY OF OPERATION

1.0 Controller Circuits

1.1 Overview

This section provides a detailed theory of operation for the radio and its components. The main radio is a single board design, consisting of the transmitter, receiver, and controller circuits. The main board is designed to accept one additional option board. This may provide functions such as secure voice/data, voice storage or signalling decoder.

A controlhead is either mounted directly or connected by an extension cable. The controlhead contains, LED indicators, a microphone connector, buttons and dependant of the radio type, a display and a speaker. These provide the user with interface control over the various features of the radio.

If no controlhead is mounted directly on the front of the radio, an expansion board containing circuitry for special applications can be mounted on the front of the radio. An additional controlhead can be connected by an extension cable.

In addition to the power cable and antenna cable, an accessory cable can be attached to a connector on the rear of the radio. The accessory cable provides the necessary connections for items such as external speaker, emergency switch, foot operated PTT, and ignition sensing, etc.

1.2 General

The radio controller consists of 3 main subsections:

• Digital Control

• Audio Processing

• Voltage Regulation.

The digital control section of the radio is based upon an open architecture controller configuration. It consists of a microprocessor, support memory, support logic, signal MUX ICs, the On/Off circuit, and general purpose Input/Output circuitry.

The controller uses the Motorola 68HC11FL0 microprocessor (U0101). In addition to the microprocessor, the controller has 3 external memory devices. The 3 memory devices consist of a 32KByte SRAM (U0122), a 512KByte FLASH EEPROM (U0121), and a 16KByte EEPROM (U0111).

Note: From this point on the 68HC11FL0 microprocessor will be referred to as µP. References to a controlhead will be to the controlheads with display.

1-2 Controller Circuits

Figure 1-1 Controller Block Diagram

1.3 Radio Power Distribution

The DC power distribution throughout the radio board is shown in Figure 1-2. Voltage regulation for the controller is provided by 4 separate devices; U0651 (MC78M05) +5V, U0641 (LM2941) +9.3V, U0611 (LM2941) SWB+ limited to 16.5V and VSTBY 5V (a combination of R0621 and VR0621). An additional 5V regulator is located on the RF section.

The DC voltage applied to connector J0601 supplies power directly to the electronic on/off control, RF power amplifier, 16.5V limiter, 9.3V regulator, Audio PA and 5.6V stabilization circuit. The 9.3V regulator (U0641) supplies power to the 5V regulator (U0651) and the 6V voltage divider Q0681.

Regulator U0641 is used to generate the 9.3 volts required by some audio circuits, the RF circuitry and power control circuitry. Input and output capacitors (C0641 and C0644 / C0645) are used to reduce high frequency noise. R0642 / R0643 set the output voltage of the regulator. If the voltage at pin 1 is greater than 1.3 volts the regulator output decreases and if the voltage is less than 1.3 volts the regulator output increases. This regulator output is electronically enabled by a 0 volt signal on pin 2. Q0661, Q0641 and R0641 are used to disable the regulator when the radio is turned off.

Voltage regulation providing 5V for the digital circuitry is done by U0651. Operating voltage is from the regulated 9.3V supply. Input and output capacitors (C0651 / C0652 and C0654 / C0655) are used to reduce high frequency noise and provide proper operation during battery transients. Voltage sense device U0652 or alternatively U0653 provides a reset output that goes to 0 volts if the regulator output goes below 4.5 volts. This is used to reset the controller to prevent improper operation. Diode D0651 prevents discharge of C0652 by negative spikes on the 9V3 voltage.

ExternalMicrophone

InternalMicrophone

ExternalSpeaker

InternalSpeaker

SCI to

Controlhead

Audio PA

Audio/Signalling Architecture

To SynthesizerModOut

16.8 MHzReference Clockfrom Synthesizer

Recovered Audio

To RF SectionSPI

DigitalArchitecture

µP Clock

5VRegulator (5VD)

RAM

EEPROM

FLASH

HC11FL0

ASFIC_CMP

Accessory &

5Vfrom SynthesizerSection (5V_RF)

Connector

Controller Circuits 1-3

Transistor Q0681 and resistors R0681 / R0682 divide the regulated 9.3V down to about 6 volts. This voltage supplies the 5V regulator, located on the RF section. By reducing the supply voltage of the regulator, the power dissipation is divided between the RF section and the controller section.

The voltage VSTBY, which is derived directly from the supply voltage by components R0621 and VR0621, is used to buffer the internal RAM. C0622 allows the battery voltage to be disconnected for a couple of seconds without losing RAM parameters. Dual diode D0621 prevents radio circuitry from discharging this capacitor. When the supply voltage is applied to the radio, C0622 is charged via R0621 and D0621. To avoid that the µP enters the wrong mode when the radio is switched on while the voltage across C0622 is still too low, the regulated 5V charges C0622 via diode D0621.

Figure 1-2 DC Power Distribution Block Diagram

The voltage INT SW B+ from switching transistor Q0661 provides power to the circuit controlling the audio PA output. The voltage INT SW B+ voltage is monitored by the µP through voltage divider R0671 / R0672 and line BATTERY VOLTAGE. Diode VR0671 limits the divided voltage to 5.6V to protect the µP.

Regulator U0611 is used to generate the voltage for the switched supply voltage output (SWB+) at the accessory connector J0501 pin 13. U0611 is configured to operate as a switch with voltage and current limit. R0611 / R0612 set the maximum output voltage to 16.5 volts. This limitation is only active at high supply voltage levels. The regulator output is electronically enabled by a 0 volt signal on pin 2. Q0661, Q0641 and R0641 are used to disable the regulator when the radio is turned off. Input and output capacitors (C0603 and C0611 / C0612) are used to reduce high frequency noise.

Diode VR0601 acts as protection against transients and wrong polarity of the supply voltage.

Fuse F0401 prevents damage of the board in case the FLT A+ line is shorted at the controlhead connector.

VCOBIC

FRACTN

VSTBY

5V_RF

9V3

FLT_A+

5VD

SWB+

Option Board 40 Pin Connector

PA, Driver Antenna Switch

Controlhead12 Pin Connector

Accessories20 Pin Connector

J0601 13.2V

PASUPVLTG

FLT_A+

16.5VLimiter

ON / OFFControl

ASFIC_CMP5.6V

IgnitionEmergencyON/OFF

9.3VRegulator

Audio PA

6VRegulator

5VRegulator

5VD

5VRegulator

5V/VDDA

MCU µP, RAM,

FLASH & EEPROM

PCIC, TX Amp

Temp Sense

RX RF AmpIF Amp

F04

01


1.4 Electronic ON/OFF

The radio has circuitry which allows radio software and/or external triggers to turn the radio on or off without direct user action. For example, automatic turn on when ignition is sensed and off when ignition is off.

Q0661 is used to provide INT SW B+ to the various radio circuits and to enable the voltage regulators via transistor Q0641. Q0661 contains an pnp and an npn transistor and acts as an electronic on/off switch. The switch is on when the collector of the npn transistor within Q0661 is low. When the radio is off the collector is at supply voltage level. This effectively prevents current flow from emitter to collector of the pnp transistor. When the radio is turned on the voltage at the base of the npn transistor is pulled high and the pnp transistor switches on (saturation). With voltage INT SWB+ now at supply voltage level, transistor Q0641 pulls pin 2 of the voltage regulators U0611 and U 0641 to ground level and thereby enables their outputs. The electronic on/off circuitry can be enabled by the microprocessor (through ASFIC CMP port GCB2, line DC POWER ON), the emergency switch (line EMERGENCY CONTROL), the mechanical On/Off/Volume knob on the controlhead (line ON OFF CONTROL), or the ignition sense circuitry (line IGNITION CONTROL). If any of the 4 paths cause a low at the collector of the npn transistor within Q0661, the electronic "ON" is engaged.

1.5 Emergency

The emergency switch (J0501 pin 9), when engaged, grounds the base of Q0662 via line EMERGENCY CONTROL. This switches Q0662 off and resistor R0662 pulls the collector of Q0662 and the base of Q0663 to levels above 2 volts. Transistor Q0663 switches on and pulls the collector of the npn transistor within Q0661 to ground level and thereby enables the voltage regulators via Q0641. When the emergency switch is released R0541 pulls the base of Q0662 up to 0.6 volts. This causes the collector of transistor Q0662 to go low (0.2V), thereby switching Q0663 off.

While the radio is switched on, the microprocessor monitors the voltage at the emergency input on the accessory connector via pin 60 and line GP5 IN ACC9. Three different conditions are distinguished, no emergency, emergency, and open connection to the emergency switch. If no emergency switch is connected or the connection to the emergency switch is broken, the resistive divider R0541 / R0512 will set the voltage to about 4.7 volts. If an emergency switch is connected, a resistor to ground within the emergency switch will reduce the voltage on line GP5 IN ACC9 to inform the microprocessor that the emergency switch is operational. An engaged emergency switch pulls line GP5 IN ACC9 to ground level. Diode D0179 limits the voltage to protect the microprocessor input.

While EMERGENCY CONTROL is low, INT SW B+ is on, the microprocessor starts execution, reads that the emergency input is active through the voltage level of line GP5 IN ACC9, and sets the DC POWER ON output of the ASFIC CMP pin 13 to a logic high. This high will keep Q0661 and Q0641 switched on. This operation allows a momentary press of the emergency switch to power up the radio. When the microprocessor has finished processing the emergency press, it sets the DC POWER ON line to a logic 0. This turns off Q0661 and the radio turns off. Notice that the microprocessor is alerted to the emergency condition via line GP5 IN ACC9. If the radio was already on when emergency was triggered then DC POWER ON would already be high.


1.6 Mechanical ON/OFF

This refers to the typical On/Off/Volume knob, located on the controlhead, and which turns the radio on and off.If the radio is turned off and the On/Off/Volume knob is pressed, line ON OFF CONTROL (J0401 pin 11) goes high and switches the radio’s voltage regulators on as long as the button is pressed. The microprocessor is alerted through line ON OFF SENSE (U0101 pin 6) which is pulled to low by Q0110 while the On/Off /Volume knob is pressed. In addition, an interrupt is generated at µP pin 96. The µP asserts line DC POWER ON via ASFIC CMP, pin 13 high which keeps Q0661 and Q0641, and in turn the radio, switched on. When the On/Off/Volume knob is released again the controlhead informs the µP via SBEP bus about the knob release. (See SBEP Serial Interface subsection for more details). This informs the µP to keep the radio switched on and continue with normal operation.If the On/Off/Volume knob is pressed while the radio is on, the controlhead informs the µP via SBEP bus about the knob status. (See SBEP Serial Interface subsection for more details). After a short delay time the microprocessor switches the radio off by setting DC POWER ON to low via ASFIC CMP pin 13.

1.7 Ignition

Ignition sense is used to prevent the radio from draining the vehicle’s battery because the engine is not running.

When the IGNITION input (J0501 pin 10) goes above 5 volts Q0661 is turned on via line IGNITION CONTROL. Q0661 turns on INT SW B+ and the voltage regulators by turning on Q0641 and the microprocessor starts execution. The microprocessor is alerted through line GP6 IN ACC10. The voltage at the IGNITION input turns Q0181 on, which pulls microprocessor pin 74 to low. If the software detects a low state it asserts DC POWER ON via ASFIC pin 13 high which keeps Q0661 and Q0641, and in turn the radio switched on.

When the IGNITION input goes below 3 volts, Q0181 switches off and R0181 pulls microprocessor pin 74 to high. This alerts the software to switch off the radio by setting DC POWER ON to low. The next time the IGNITION input goes above 5 volts the above process will be repeated.

1.8 Microprocessor Clock Synthesizer

The clock source for the microprocessor system is generated by the ASFIC CMP (U0221). Upon power-up the synthesizer IC (FRAC-N) generates a 16.8 MHz waveform that is routed from the RF section to the ASFIC CMP pin 34. For the main board controller the ASFIC CMP uses 16.8 MHz as a reference input clock signal for its internal synthesizer. The ASFIC CMP, in addition to audio circuitry, has a programmable synthesizer which can generate a synthesized signal ranging from 1200Hz to 32.769MHz in 1200Hz steps.

When power is first applied, the ASFIC CMP will generate its default 3.6864MHz CMOS square wave UP CLK (on U0221 pin 28) and this is routed to the microprocessor (U0101 pin 90). After the microprocessor starts operation, it reprograms the ASFIC CMP clock synthesizer to a higher UP CLK frequency (usually 7.3728 or 14.7456 MHz) and continues operation.

The ASFIC CMP may be reprogrammed to change the clock synthesizer frequencies at various times depending on the software features that are executing. In addition, the clock frequency of the synthesizer is changed in small amounts if there is a possibility of harmonics of this clock source interfering with the desired radio receive frequency.


The ASFIC CMP synthesizer loop uses C0245, C0246 and R0241 to set the switching time and jitter of the clock output. If the synthesizer cannot generate the required clock frequency it will switch back to its default 3.6864MHz output.

Because the ASFIC CMP synthesizer and the µP system will not operate without the 16.8 MHz reference clock it (and the voltage regulators) should be checked first in debugging the system.

The microprocessor uses XTAL Y0131 and associated components to form a Real Time Clock (RTC). It may be used to display the time on controlheads with display or as time stamp for incoming calls or messages. The real time clock is powered from the voltage VSTBY to keep it running while the radio is switched off. When the radio was disconnected from its supply voltage, the time must be set again.

1.9 Serial Peripheral Interface (SPI)

The µP communicates to many of the ICs through its SPI port. This port consists of SPI TRANSMIT DATA (MOSI) (U0101-100), SPI RECEIVE DATA (MISO) (U0101-99), SPI CLK (U0101-1) and chip select lines going to the various ICs, connected on the SPI PORT (BUS). This BUS is a synchronous bus, in that the timing clock signal CLK is sent while SPI data (SPI TRANSMIT DATA or SPI RECEIVE DATA) is sent. Therefore, whenever there is activity on either SPI TRANSMIT DATA or SPI RECEIVE DATA there should be a uniform signal on CLK. The SPI TRANSMIT DATA is used to send serial from a µP to a device, and SPI RECEIVE DATA is used to send data from a device to a µP.

On the controller there are two ICs on the SPI BUS, ASFIC CMP (U0221-22), and EEPROM (U0111-5). In the RF sections there are 2 ICs on the SPI BUS, the FRAC-N Synthesizer, and the Power Control IC (PCIC). The SPI TRANSMIT DATA and CLK lines going to the RF section are filtered by L0481 / R0481 and L0482 / R0482 to minimize noise. The chip select line CSX from U0101 pin 2 is shared by the ASFIC CMP, FRAC-N Synthesizer and PCIC. Each of these ICs check the SPI data and when the sent address information matches the IC’s address, the following data is processed. The chip select lines for the EEPROM (EE CS), Voice Storage (VS CS), expansion board (EXP1 CS, EXP2 CS) and option board (OPT CS) are decoded by the address decoder U0141.

When the µP needs to program any of these ICs it brings the chip select line CSX to a logic 0 and then sends the proper data and clock signals. The amount of data sent to the various ICs are different, for example the ASFIC CMP can receive up to 19 bytes (152 bits) while the PCIC can receive up to 6 bytes (48 bits). After the data has been sent the chip select line is returned to logic 1.

The Option board interfaces are different in that the µP can also read data back from devices connected.The timing and operation of this interface is specific to the option connected, but generally follows the pattern:

1. an option board device generates a service request via J0551-29, line RDY and µP pin 79,

2. the main board asserts a chip select for that option board device via U0141-14, line OPT CS, J0551-30,

3. the main board µP generates the CLK (J0551-3),

4. the main board µP writes serial data via J0551-15 and reads serial data via J0551-16 and,

5. when data transfer is complete the main board terminates the chip select and CLK activity.



The SBEP serial interface allows the radio to communicate with the Customer Programming Software (CPS), or the Universal Tuner via the Radio Interface Box (RIB). This interface connects to the microphone connector via controlhead connector (J0401-8) and to the accessory connector J0501-17 and comprises BUS+. The line is bidirectional, meaning that either the radio or the RIB can drive the line. The microprocessor sends serial data via pin 98 and D0101 and it reads serial data via pin 97. Whenever the microprocessor detects activity on the BUS+ line, it starts communication.

In addition, the SBEP serial interface is used to communicate with a connected controlhead. When a controlhead key is pressed or the volume knob is rotated, the line ON OFF CONTROL goes high. This turns on transistor Q0110 which pulls line ON OFF SENSE and µP pin 6 to ground level. In addition, an interrupt is generated at µP pin 96. This indicates that the controlhead wants to start SBEP communication. The microprocessor then requests the data from the controlhead. The controlhead starts sending and after all data has been send, the ON OFF CONTROL line goes low. The controlhead ignores any data on BUS+ during SBEP communication with the CPS or Universal Tuner.

1.11 General Purpose Input/Output

The controller provides eight general purpose lines (DIG1 through DIG8) available on the accessory connector J0501 to interface to external options. Lines DIG IN 1,3,5,6, are inputs, DIG OUT 2 is an output and DIG IN OUT 4,7,8 are bidirectional. The software and the hardware configuration of the radio model define the function of each port.

DIG IN 1 can be used as external PTT input, DATA PTT input or others, set by the CPS. The µP reads this port via pin 77 and Q0171.

DIG OUT 2 can be used as normal output or external alarm output, set by the CPS. Transistor Q0173 is controlled by the µP via ASFIC CMP pin 14.

DIG IN 3 is read by µP pin 61 via resistor R0176

DIG IN 5 can be used as normal input or emergency input, set by the CPS. The µP reads this port via R0179 and µP pin 60. Diode D0179 limits the voltage to protect the µP input.

DIG IN 6 can be used as normal input, set by the CPS. The µP reads this port via pin 74 and Q0181.

DIG IN OUT 4,7,8 are bi-directional and use the same circuit configuration. Each port uses an output transistor Q0177, Q0183, Q0185 controlled by µP pins 46, 47, 53. The ports are read by µP pins 75, 54, 76. To use one of the ports as input the µP must turn off the corresponding output transistor.

In addition the signals from DIG IN 1, DIG IN OUT 4 are fed to the option board connector J0551 and the expansion board connector J0451.


1.12 Normal Microprocessor Operation

For this radio, the µP is configured to operate in one of two modes, expanded and bootstrap. In expanded mode the µP uses external memory devices to operate, whereas in bootstrap operation the µP uses only its internal memory. In normal operation of the radio the µP is operating in expanded mode as described below.

In expanded mode on this radio, the µP (U0101) has access to 3 external memory devices; U0121 (FLASH EEPROM), U0122 (SRAM), U0111 (EEPROM). Also, within the µP there are 3 KBytes of internal RAM, as well as logic to select external memory devices.

The external EEPROM (U0111) space contains the information in the radio which is customer specific, referred to as the codeplug. This information consists of items such as: 1) what band the radio operates in, 2) what frequencies are assigned to what channel, and 3) tuning information. (See the particular device subsection for more details.)

The external SRAM (U0122) as well as the µP’s own internal RAM space are used for temporary calculations required by the software during execution. All of the data stored in both of these locations is lost when the radio powers off (See the particular device subsection for more details).

The FLASH EEPROM contains the actual Radio Operating Software. This software is common to all open architecture radios within a given model type. For example Trunking radios may have a different version of software in the FLASH EEPROM than a non Trunking radio (See the particular device subsection for more details).

The µP provides an address bus of 16 address lines (ADDR 0 - ADDR 15), and a data bus of 8 data lines (DATA 0 - DATA 7). There are also 3 control lines; CSPROG (U0101-38) to chip select U0121-30 (FLASH EEPROM), CSGP2 (U0101-41) to chip select U0122-20 (SRAM) and PG7 R W (U0101-4) to select whether to read or to write. The external EEPROM (U0111-1), the OPTION BOARD and EXPANSION BOARD are selected by 3 lines of the µP using address decoder U0141. The chips ASFIC CMP / FRAC-N / PCIC are selected by line CSX (U0101-2).

When the µP is functioning normally, the address and data lines should be toggling at CMOS logic levels. Specifically, the logic high levels should be between 4.8 and 5.0V, and the logic low levels should be between 0 and 0.2V. No other intermediate levels should be observed, and the rise and fall times should be <30ns.

The low-order address lines (ADDR 0 - ADDR 7) and the data lines (DATA 0-DATA 7) should be toggling at a high rate, e. g. , you should set your oscilloscope sweep to 1us/div. or faster to observe individual pulses. High speed CMOS transitions should also be observed on the µP control lines.

On the µP the lines XIRQ (U0101-48), MODA LIR (U0101-58), MODB VSTPY (U0101-57) and RESET (U0101-94) should be high at all times during normal operation. Whenever a data or address line becomes open or shorted to an adjacent line, a common symptom is that the RESET line goes low periodically, with the period being in the order of 20ms. In the case of shorted lines you may also detect the line periodically at an intermediate level, i.e. around 2.5V when 2 shorted lines attempt to drive to opposite rails.

The MODA LIR (U0101-58) and MODB VSTPY (U0101-57) inputs to the µP must be at a logic 1 for it to start executing correctly. After the µP starts execution it will periodically pulse these lines to determine the desired operating mode. While the Central Processing Unit (CPU) is running, MODA LIR is an open-drain CMOS output which goes low whenever the µP begins a new instruction (an instruction typically requires 2-4 external bus cycles, or memory fetches). However, since it is an open-drain output, the waveform rise assumes an exponential shape similar to an RC circuit.


There are 8 analogue to digital converter ports (A/D) on U0101. They are labelled within the device block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action.

For example U0101-67 is the battery voltage detect line. R0671 and R0672 form a resistor divider on INT SWB+. With 30K and 10K and a voltage range of 11V to 17V, that A/D port would see 2.74V to 4.24V which would then be converted to ~140 to 217 respectively.

U0101-69 is the high reference voltage for the A/D ports on the µP. Capacitor C0101 filters the +5V reference. If this voltage is lower than +5V the A/D readings will be incorrect. Likewise U0101-68 is the low reference for the A/D ports. This line is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.


1.13 FLASH Electronically Erasable Programmable Memory(FLASH EEPROM)

The 512KByte FLASH EEPROM (U0121) contains the radio’s operating software. This software is common to all open architecture radios within a given model type. For example Trunking radios may have a different version of software in the FLASH EEPROM than a non Trunking radio. This is, as opposed to the codeplug information stored in EEPROM (U0111) which could be different from one user to another in the same company.

In normal operating mode, this memory is only read, not written to. The memory access signals (CE, OE and WE) are generated by the µP.

To upgrade/reprogram the FLASH software, the µP must be set in bootstrap operating mode. This is done by pulling microprocessor pins MODA LIR (U0101-58) and MODB VSTBY (U0101-57) to low during power up. When accessory connector pin 18 is at ground level, diode D0151 will pull both microprocessor pins to low. The same can be done by a level of 12 volts on line ON OFF CONTROL from the controlhead. Q0151 pulls diode D0151 and in turn both microprocessor pins to low. Diode VR0151 prevents entering bootstrap operating mode during normal power up.

In bootstrap operating mode the µP controls the FLASH EN OE (U0121-32) input by µP pin 86. Chip select (U0121-30) and read or write operation (U0121-7) are controlled by µP pins 38 and 4.

The FLASH device may be reprogrammed 1,000 times without issue. It is not recommended to reprogram the FLASH device at a temperature below 0°C.

Capacitor C0121 serves to filter out any AC noise which may ride on +5V at U0121.

1.14 Electrically Erasable Programmable Memory (EEPROM)

The external 16 KByte EEPROM (U0111) contains additional radio operating parameters such as operating frequency and signalling features, commonly know as the codeplug. It is also used to store radio operating state parameters such as current mode and volume. This memory can be written to in excess of 100,000 times and will retain the data when power is removed from the radio. The memory access signals (SI, SO and SCK) are generated by the µP and chip select (CS) is generated by address decoder U0141-15.

1.15 Static Random Access Memory (SRAM)

The SRAM (U0121) contains temporary radio calculations or parameters that can change very frequently, and which are generated and stored by the software during its normal operation. The information is lost when the radio is turned off.

The device allows an unlimited number of write cycles. SRAM accesses are indicated by the CS signal U0122-20 (which comes from U0101-CSGP2) going low. U0122 is commonly referred to as the external RAM as opposed to the internal RAM which is the 3 KBytes of RAM which is part of the 68HC11FL0. Both RAM spaces serve the purpose. However, the internal RAM is used for the calculated values which are accessed most often.

Capacitor C0122 serves to filter out any ac noise which may ride on +5V at U0122.

Controller Board Audio and Signalling Circuits 1-11

2.0 Controller Board Audio and Signalling Circuits

2.1 General - Audio Signalling Filter IC with Compander (ASFIC CMP)

The ASFIC CMP (U0221) used in the controller has 4 functions;

1) RX/TX audio shaping, i.e. filtering, amplification, attenuation

2) RX/TX signalling, PL/DPL/HST/MDC/MPT

3) Squelch detection

4) Microprocessor clock signal generation (see Microprocessor Clock Synthesizer Description).

The ASFIC CMP is programmable through the SPI BUS (U0221-20/21/22), normally receiving 19 bytes. This programming sets up various paths within the ASFIC CMP to route audio and/or signalling signals through the appropriate filtering, gain and attenuator blocks. The ASFIC CMP also has 6 General Control Bits GCB0-5 which are CMOS level outputs and used for NOISE BLANKER (GCB0) in Low Band radios, EXTERNAL ALARM (GCB1) and DC POWER ON (GCB2) to switch the voltage regulators (and the radio) on and off. GCB3 controls U0251 pin 11 to output either RX FLAT AUDIO or RX FILTERED AUDIO on the accessory connector pin 11. GCB4 controls U0251 pin 10 to use either the external microphone input or the voice storage playback signal. GCB5 is used to switch the audio PA on and off.

2.2 Transmit Audio Circuits

Refer to Figure 1-3 for reference for the following sections.

Figure 1-3 Transmit Audio Paths

MIC IN

MOD INTORF

SECTION(SYNTHESIZER)

3644

33

40

J0501

ACCESSORYCONNECTOR

J0401

CONTROL HEADCONNECTOR

MIC

EXT MIC

FLAT TXAUDIO

42

32

5

48

46

9

2

INOUT

OPTIONBOARD

FILTERS ANDPREEMPHASIS

HS SUMMER

SPLATTERFILTER

LS SUMMER

LIMITER

ATTENUATOR

VCO ATN

TX RTNTX SND

MICINT

AUX TX

ASFIC_CMP U0221

TP0221

TP0222

MICEXT

J0451 J0551

18FLATTX RTN

EXPANSION BOARD

31 IN/OUT

39 OUT

FROMµP Pin3

U0211-4

1-12 Controller Board Audio and Signalling Circuits

2.2.1 Mic/Data Input Path

The radio supports 2 distinct microphone paths known as internal (from controlhead) and external mic (from accessory connector J0501-2) and an auxiliary path (FLAT TX AUDIO, from accessory connector J0501-5). The microphones used for the radio require a DC biasing voltage provided by a resistive network.

These two microphone audio input paths enter the ASFIC CMP at U0221-48 (external mic) and U0221-46 (internal mic). Following the internal mic path; the microphone is plugged into the radio controlhead and is connected to the controller board via J0401-9.

From here the signal is routed via R0409 and line INT MIC to R0205. R0201 and R0202 provide the 9.3VDC bias. Resistive divider R0205 / R0207 divide the input signal by 5.5 and provide input protection for the CMOS amplifier input. R0202 and C0201 provide a 560 ohm AC path to ground that sets the input impedance for the microphone and determines the gain based on the emitter resistor in the microphone’s amplifier circuit.

C0204 serves as a DC blocking capacitor. The audio signal at U0221-46 (TP0221) should be approximately 14mV for 1.5kHz or 3kHz of deviation with 12.5kHz or 25kHz channel spacing.

The external microphone signal enters the radio on accessory connector J0501 pin 2 and is routed via line EXT MIC to R0206. R0203 and R0204 provide the 9.3VDC bias. Resistive divider R0206 / R0208 divide the input signal by 5.5 and provide input protection for the CMOS amplifier input. R0204 and C0202 provide a 560 ohm AC path to ground that sets the input impedance for the microphone and determines the gain based on the emitter resistor in the microphone’s amplifier circuit.

C0254 serves as a DC blocking capacitor. Multi switch U0251 controlled by ASFIC CMP port GCB4 selects either the external microphone input signal or the voice storage playback signal for entering the ASFIC CMP at pin 48. The audio signal at U0221-48 (TP0222) should be approximately 14mV for 1.5kHz or 3kHz of deviation with 12.5kHz or 25kHz channel spacing.

The FLAT TX AUDIO path is used for transmitting data signals and has therefore no limiter or filters enabled inside the ASFIC CMP. When this path is enabled via CPS and DATA PTT is asserted, any signal on this path is directly fed to the modulator. Signals applied to this path either via accessory connector J0501, expansion board connector J0451 or option board connector J0551 must be filtered and set to the correct level externally or on the option board in order not to exceed the maximum specified transmit deviation and transmitted power in the adjacent channels. The attenuator inside the ASFIC CMP changes the FM deviation of the data signal according to the channel spacing of the active transmit channel.

The FLAT TX AUDIO signal from accessory connector J0501-5 is fed to the ASFIC CMP (U0221) pin 42 through C0541 and line FLAT TX RTN, switch U0251 and buffer U0211-4. When the radio switches from receive to transmit mode the µP opens switch U0251 for a short period to prevent that any applied signal can cause a transmit frequency offset. Buffer U0211-4 sets the correct DC level and ensures a short settle period when the radio is switched on. Inside the ASFIC CMP the signal is routed directly to the attenuator, which sets the FM deviation according to the channel spacing of the active transmit channel and emerges from the ASFIC CMP at U0221-40, at which point it is routed to the RF section.


The ASFIC has an internal AGC that can control the gain in the mic audio path. The AGC can be disabled / enabled by the µP. Another feature that can be enabled or disabled in the ASFIC is the VOX. This circuit, along with the capacitor at U0221-7, provides a DC voltage that can allow the µP to detect microphone audio. The ASFIC can also be programmed to route the microphone audio to the speaker for public address operation.

2.2.2 PTT Sensing and TX Audio Processing

Microphone PTT coming from the controlhead is sent via SBEP bus to the microprocessor. An external PTT can be generated by grounding pin 3 on the accessory connector if this input is programmed for PTT by the CPS. When microphone PTT is sensed, the µP will always configure the ASFIC CMP for the "internal" mic audio path, and external PTT will result in the external mic audio path being selected.

Inside the ASFIC CMP, the mic audio is filtered to eliminate frequency components outside the 300-3000Hz voice band, and pre-emphasized if pre-emphasis is enabled. The signal is then limited to prevent the transmitter from over deviating. The limited mic audio is then routed through a summer, which is used to add in signalling data, and then to a splatter filter to eliminate high frequency spectral components that could be generated by the limiter. The audio is then routed to an attenuator, which is tuned in the factory or the field to set the proper amount of FM deviation. The TX audio emerges from the ASFIC CMP at U0221-40 MOD IN, at which point it is routed to the RF section.

Dependent on the radio model, input pin 3 on the accessory connector can be programmed for DATA PTT by the CPS. When DATA PTT is sensed, the µP will always configure the ASFIC CMP for the flat TX audio path. Limiter and any filtering will be disabled. The signal is routed directly to the attenuator, which sets the FM deviation according to the channel spacing of the active transmit channel and emerges from the ASFIC CMP at U0221-40, at which point it is routed to the RF section.

2.2.3 TX Secure Audio (optional)

The audio follows the normal transmit audio processing until it emerges from the ASFIC CMP TX SND pin (U0221-44), which is fed to the Secure board residing at option connector J0551-33. The Secure board contains circuitry to amplify, encrypt, and filter the audio. The encrypted signal is then fed back from J0551-32 to the ASFIC CMP TX RTN input (U0221-36). The signal level at this pin should be about 65mVrms. The signal is then routed through the TX path in the ASFIC CMP and emerges at MOD IN pin 40.

2.2.4 Option Board Transmit Audio

The audio follows the normal transmit audio processing until it emerges from the ASFIC CMP TX SND pin (U0221-44), which is fed to the option board residing at option connector J0551-33. The option board contains circuitry to process the audio. The processed signal is then fed back from J0551-32 to the ASFIC CMP TX RTN input (U0221-36). The signal level at this pin should be about 65mVrms. The signal is then routed through the TX path in the ASFIC CMP and emerges at MOD IN pin 40.


2.3 Transmit Signalling Circuits

Refer to 1-4 for reference for the following sections.

Figure 1-4 Transmit Signalling Paths

From a hardware point of view, there are 3 types of signalling:

1) Sub-audible data (PL / DPL / Connect Tone) that gets summed with transmit voice or signalling,

2) DTMF data for telephone communication in trunked and conventional systems, and

3) Audible signalling including Select 5, MPT-1327, MDC, High speed Trunking.

NOTE: All three types are supported by the hardware while the radio software determines which signalling type is available.

2.3.1 Sub-audible Data (PL/DPL)

Sub-audible data implies signalling whose bandwidth is below 300Hz. PL and DPL waveforms are used for conventional operation and connect tones for trunked voice channel operation. The trunking connect tone is simply a PL tone at a higher deviation level than PL in a conventional system. Although it is referred to as "sub-audible data", the actual frequency spectrum of these waveforms may be as high as 250 Hz, which is audible to the human ear. However, the radio receiver filters out any audio below 300Hz, so these tones are never heard in the actual system.

Only one type of sub-audible data can be generated by U0221 (ASFIC CMP) at any one time. The process is as follows, using the SPI BUS, the µP programs the ASFIC CMP to set up the proper low-speed data deviation and select the PL or DPL filters. The µP then generates a square wave which strobes the ASFIC PL / DPL encode input LSIO U0221-18 at twelve times the desired data rate. For example, for a PL frequency of 103Hz, the frequency of the square wave would be 1236Hz.

19

18

40

MOD IN

TO RFSECTION

(SYNTHESIZER)

80

44 HIGH SPEEDCLOCK IN(HSIO)

LOW SPEED CLOCK IN(LSIO)

ASFIC_CMP U0221

MICROCONTROLLER

U0101

HSSUMMER

5-3-2 STATE ENCODER

DTMF ENCODER

SPLATTERFILTER

PLENCODER

LSSUMMER

ATTENUATOR

85

82

SPIBUS


This drives a tone generator inside U0221 which generates a staircase approximation to a PL sine wave or DPL data pattern. This internal waveform is then low-pass filtered and summed with voice or data. The resulting summed waveform then appears on U0221-40 (MOD IN), where it is sent to the RF board as previously described for transmit audio. A trunking connect tone would be generated in the same manner as a PL tone.

2.3.2 High Speed Data

High speed data refers to the 3600 baud data waveforms, known as Inbound Signalling Words (ISWs) used in a trunking system for high speed communication between the central controller and the radio. To generate an ISW, the µP first programs the ASFIC CMP (U0221) to the proper filter and gain settings. It then begins strobing U0221-19 (HSIO) with a pulse when the data is supposed to change states. U0221’s 5-3-2 State Encoder (which is in a 2-state mode) is then fed to the post-limiter summer block and then the splatter filter. From that point it is routed through the modulation attenuators and then out of the ASFIC CMP to the RF board. MPT 1327 and MDC are generated in much the same way as Trunking ISW. However, in some cases these signals may also pass through a data pre-emphasis block in the ASFIC CMP. Also these signalling schemes are based on sending a combination of 1200 Hz and 1800 Hz tones only. Microphone audio is muted during High Speed Data signalling.

2.3.3 Dual Tone Multiple Frequency (DTMF) Data

DTMF data is a dual tone waveform used during phone interconnect operation. It is the same type of tones which are heard when using a "Touch Tone" telephone.

There are seven frequencies, with four in the low group (697, 770, 852, 941Hz) and three in the high group (1209, 1336, 1477Hz).

The high-group tone is generated by the µP (U0101-44) strobing U0221-19 at six times the tone frequency for tones less than 1440Hz or twice the frequency for tones greater than 1440Hz. The low group tone is generated by the ASFIC CMP, controlled by the µP via SPI bus. Inside U0221 the low-group and high-group tones are summed (with the amplitude of the high group tone being approximately 2 dB greater than that of the low group tone) and then pre-emphasized before being routed to the summer and splatter filter. The DTMF waveform then follows the same path as was described for high-speed data.


2.4 Receive Audio Circuits


Figure 1-5 Receive Audio Paths

2.4.1 Squelch Detect

The radio’s RF circuits are constantly producing an output at the discriminator (IF IC). This signal (DISC AUDIO) is routed to the ASFIC CMP’s squelch detect circuitry input DISC (U0221-2). All of the squelch detect circuitry is contained within the ASFIC CMP. Therefore from a user’s point of view, DISC AUDIO enters the ASFIC CMP, and the ASFIC CMP produces two CMOS logic outputs based on the result. They are CH ACT (U0221-16) and SQ DET (U0221-17).

The squelch signal entering the ASFIC CMP is amplified, filtered, attenuated, and rectified. It is then sent to a comparator to produce an active high signal on CH ACT. A squelch tail circuit is used to produce SQ DET (U0221-17) from CH ACT. The state of CH ACT and SQ DET is high (logic 1) when carrier is detected, otherwise low (logic 0).

CH ACT is routed to the µP pin 84 while SQ DET is routed to the µP pin 83.

FLT/FLAT RX AUDIO

J0501

11

16

1 EXTERNALSPEAKER

INTERNALSPEAKER

ACCESSORYCONNECTOR

CONTROLHEADCONNECTOR

HANDSETAUDIO

7

2

3

J0401

INTSPKR-

SPKR +

SPKR -

1

9

2

J0551

4110

INTSPKR+

4

6

DISC

ASFIC_CMPU0221

AUDIO PA

U0271

IN

OPTIONBOARD

IN

OUTVOLUMEATTEN.

FILTER ANDDEEMPHASIS

17

MICRO CONTROLLER

U0101

80

FROMRF

SECTION(IF IC)

LIMITER, RECTIFIERFILTER, COMPARATOR

SQ DET

SQUELCHCIRCUIT

16

PL FILTER LIMITER

CH ACT

AUX RX43

18LS IO

U IO AUDIO

8384

39URX OUT

17J0451

EXPANSIONBOARD

DISCAUDIO

34

2835

85

IN

7


SQ DET is used to determine all audio mute / unmute decisions except for Conventional Scan. In this case CH ACT is a pre-indicator as it occurs slightly faster than SQ DET.

2.4.2 Audio Processing and Digital Volume Control

The receiver audio signal enters the controller section from the IF IC on DISC AUDIO. The signal is DC coupled by R0228 and enters the ASFIC CMP via the DISC pin U0221-2.

Inside the ASFIC CMP, the signal goes through 2 paths in parallel, the audio path and the PL/DPL path.

The audio path has a programmable amplifier, whose setting is based on the channel bandwidth being received, then a LPF filter to remove any frequency components above 3000Hz and then an HPF to strip off any sub-audible data below 300Hz. Next, the recovered audio passes through a de-emphasis filter if it is enabled (to compensate for Pre-emphasis which is used to reduce the effects of FM noise). The IC then passes the audio through the 8-bit programmable attenuator whose level is set depending on the value of the volume control. Finally the filtered audio signal passes through an output buffer within the ASFIC CMP. The audio signal exits the ASFIC CMP at pin AUDIO (U0221-41).

The µP programs the attenuator, using the SPI BUS, based on the volume setting. The minimum / maximum settings of the attenuator are set by codeplug parameters.

Since sub-audible signalling is summed with voice information on transmit, it must be separated from the voice information before processing. Any sub-audible signalling enters the ASFIC CMP from the IF IC at DISC U0221-2. Once inside it goes through the PL/DPL path. The signal first passes through one of 2 low pass filters, either PL low pass filter or DPL/LST low pass filter. Either signal is then filtered and goes through a limiter and exits the ASFIC CMP at LSIO (U0221-18). At this point the signal will appear as a square wave version of the sub-audible signal which the radio received. The microprocessor U0101-80 will decode the signal directly to determine if it is the tone / code which is currently active on that mode.

2.4.3 Audio Amplification Speaker (+) Speaker (-)

The output of the ASFIC CMP’s digital volume pot, U0221-41 is routed through DC blocking capacitor C0265 to a buffer formed by U0211-1. Resistors R0265 and R0268 set the correct input level to the audio PA (U0271). This is necessary because the gain of the audio PA is 46 dB, and the ASFIC CMP output is capable of overdriving the PA unless the maximum volume is limited. Resistor R0267 and capacitor C0267 increase frequency components below 350Hz.

The audio then passes through R0269 and C0272 which provides AC coupling and low frequency roll-off. C0273 provides high frequency roll-off as the audio signal is routed to pins 1 and 9 of the audio power amplifier U0271.

The audio power amplifier has one inverted and one non-inverted output that produces the differential audio output SPK+ / SPK- (U0271-4/6). The inputs for each of these amplifiers are pins 1 and 9 respectively; these inputs are both tied to the received audio. The audio PA’s DC biases are not activated until the audio PA is enabled at pin 8.

The audio PA is enabled via the ASFIC CMP (U0221-38). When the base of Q0271 is low, the transistor is off and U0271-8 is high, using pull up resistor R0273, and the Audio PA is ON. The voltage at U0273-8 must be above 8.5VDC to properly enable the device.


If the voltage is between 3.3 and 6.4V, the device will be active but has its input (U0273-1/9) off. This is a mute condition which is used to prevent an audio pop when the PA is enabled.

The SPK+ and SPK- outputs of the audio PA have a DC bias which varies proportionately with FLT A+ (U0271-7). FLT A+ of 11V yields a DC offset of 5V, and FLT A+ of 17V yields a DC offset of 8.5V. If either of these lines is shorted to ground, it is possible that the audio PA will be damaged. SPK+ and SPK- are routed to the accessory connector (J0501-16 and 1) and to the controlhead (connector J0401-2 and 3).

2.4.4 Handset Audio

Certain hand held accessories have a speaker within them which require a different voltage level than that provided by U0271. For those devices HANDSET AUDIO is available at controlhead connector J0401-7.

The received audio from the output of the ASFIC CMP’s digital volume attenuator and buffered by U0211-1 is also routed to U0211-3 pin 9 where it is amplified 20 dB; this is set by the 10k/100k combination of R0261 and R0262. This signal is routed from the output of the op amp U0211-3 pin 8 to J0401-7. The controlhead sends this signal directly out to the microphone jack. The maximum value of this output is 6.6Vp-p.

2.4.5 Filtered Audio and Flat Audio

The ASFIC CMP has an audio whose output at U0221-39 has been filtered and de-emphasized, but has not gone through the digital volume attenuator. From ASFIC CMP U0221-39 the signal is routed via R0251 through gate U0251-12 and AC coupled to U0211-2. The gate controlled by ASFIC CMP port GCB3 (U0221-35) selects between the filtered audio signal from the ASFIC CMP pin 39 (URXOUT) or the unfiltered (flat) audio signal from the ASFIC CMP pin 10 (UIO). R0251 and R0253 determine the gain of op-amp U0211-2 for the filtered audio while R0252 and R0253 determine the gain for the flat Audio. The output of U0253-7 is then routed to J0501-11 via DC blocking capacitor C0542 and R0531. Note that any volume adjustment of the signal on this path must be done by the accessory

2.4.6 RX Secure Audio (optional)

Discriminator audio, which is now encrypted audio, follows the normal receive audio processing until it emerges from the ASFIC CMP UIO pin (U0221-10), which is fed to the Secure board residing at option connector J0551-35. On the Secure board, the encrypted signal is converted back to normal audio format, and then fed back through (J0551-34) to AUX RX of the ASFIC CMP (U0221-43). From then on it follows a path identical to conventional receive audio, where it is filtered (0.3 - 3kHz) and de-emphasized. The signal URX SND from the ASFIC CMP (U0221-39), also routed to option connector J0551-28, is not used for the Secure board but for other option boards.

2.4.7 Option Board Receive Audio

Unfiltered audio from the ASFIC CMP pin UIO (U0221-10) enters the option board at connector J0551-35. Filtered audio from the ASFIC CMP pin URXOUT (U0221-39) enters the option board at connector J0551-28. On the option board, the signal may be processed, and then fed back through J0551-34 to AUX RX of the ASFIC CMP (U0221-43). From then on it follows a path identical to conventional receive audio, where it may be filtered (0.3 - 3kHz) and de-emphasized.


2.5 Receive Signalling Circuits


Figure 1-6 Receive Signalling Paths

2.5.1 Sub-audible (PL/DPL) and High Speed Data Decoder

The ASFIC CMP (U0221) is used to filter and limit all received data. The data enters the ASFIC CMP at input DISC (U0221-2). Inside U0221 the data is filtered according to data type (HS or LS), then it is limited to a 0-5V digital level. The MDC and trunking high speed data appear at U0221-19, where it connects to the µP U0101-82

The low speed limited data output (PL, DPL, and trunking LS) appears at U0221-18, where it connects to the µP U0101-80.

The low speed data is read by the µP at twice the frequency of the sampling waveform; a latch configuration in the ASFIC CMP stores one bit every clock cycle. The external capacitors C0236, and C0244 set the low frequency pole for a zero crossings detector in the limiters for PL and HS data. The hysterisis of these limiters is programmed based on the type of received data.

2.5.2 Alert Tone Circuits

When the software determines that it needs to give the operator an audible feedback (for a good key press, or for a bad key press), or radio status (trunked system busy, phone call, circuit failures), it sends an alert tone to the speaker. It does so by sending SPI BUS data to U0221 which sets up the audio path to the speaker for alert tones. The alert tone itself can be generated in one of two ways: internally by the ASFIC CMP, or externally using the µP and the ASFIC CMP.

The allowable internal alert tones are 304, 608, 911, and 1823Hz. In this case a code contained within the SPI BUS load to the ASFIC CMP sets up the path and determines the tone frequency, and at what volume level to generate the tone. (It does not have to be related to the voice volume setting).

For external alert tones, the µP can generate any tone within the 100-3000Hz audio band. This is accomplished by the µP generating a square wave which enters the ASFIC CMP at U0221-19. Inside the ASFIC CMP this signal is routed to the alert tone generator.

DET AUDIODISCRIMINATOR AUDIO

FROM RF SECTION(IF IC)

19

18

25

2

82

80

DISC

PLCAP2

LSIO

HSIODATA FILTERAND DEEMPHASIS LIMITER

FILTER LIMITER

ASFIC_CMPU0221

MICROCONTROLLER

U0101

85

44

8

PLCAP


The output of the generator is summed into the audio chain just after the RX audio de-emphasis block. Inside U0221 the tone is amplified and filtered, then passed through the 8-bit digital volume attenuator, which is typically loaded with a special value for alert tone audio. The tone exits at U0221-41 and is routed to the audio PA like receive audio

2.6 Voice Storage (optional)

The Voice Storage (VS) option can be used to store audio signals coming from the receiver or from the microphone. Any stored audio signal can be played back over the radio’s speaker or sent out via the radio’s transmitter.

The Voice Storage option can by placed on the controller section or on an additional option board which resides on option board connector J0551. Voice Storage IC U0301 provides all required functionality and is powered from 3.3 volts regulator U0351 which,is powered from the regulated 5 volts. Dual shottky diode D0301 reduces the supply voltage for U0301 to 3 volts. The microprocessor controls U0301 via SPI bus lines CLK (U0301-8), DATA (U0301-10) and MISO (U0301-11). To transfer data, the µP first selects the U0301 via address decoder U0141, line VS CS and U0301 pin 9. Then the µP sends data through line DATA and receives data through line MISO. Pin 2 (RAC) of U0301 indicates the end of a message row by a low state for 12.5 ms and connects to µP pin 52. A low at pin 5 (INT), which is connected to µP pin 55 indicates that the Voice Storage IC requires service from the µP.

Audio, either from the radio’s receiver or from one of the microphone inputs, emerges the ASFIC CMP (U0221) at pin 39, is buffered by op-amp U0341-1 and enters the Voice Storage IC U0301 at pin 25. During playback, the stored audio emerges U0301 at pin 20. To transmit the audio signal it is fed through resistive divider R0344 / R0345 and line VS MIC to input selector IC U0251. When this path is selected by the µP via ASFIC CMP port GCB 4, the audio signal enters the ASFIC CMP at pin 48 and is processed like normal transmit audio. To play the stored audio over the radio’s speaker, the audio from U0301 pin 20 is buffered by op-amp U0341-2 and fed via switch U0342 and line FLAT RX SND to ASFIC CMP pin 10 (UIO). In this case, this ASFIC CMP pin is programmed as input and feeds the audio signal through the normal receiver audio path to the speaker or handset. Switch U0342 is controlled by the µP via ASFIC CMP port GCB 4 and feeds the stored audio only to the ASFIC CMP port UIO when it is programmed as input.

2-1

Section 2


1.0 Controller Troubleshooting Chart

Power Up Alert Tone

OK?

Speaker & Control-

head OK?

U0101EXTAL=

7.3728 MHz/ 14.7456 MHz?

BUS+activity when volume knob

rotated?

MCU is OK

Not able to program

RF Board ICs

Before replacing MCU, check SPI clock, SPI data, and RF IC select

Replace Speaker / Con-

trolhead

U0221 Pin 34 = 16.8 MHz?

Check FGU

Reprogram the correct data. & Check ASFIC

and MCU

Check Control-head and MCU (U0101, U0121, U0122, U0111)

Press PTT. No RF Output

Power.

Red LED lights up?

Check Control-

headCheck FGU &

Transmitter

Audio

at Pin 41 U0221?

Enable External PTT with CPS

External PTT enabled with

CPS?

Radio could not PTT

externally

DCat assigned Acc. Con.

Pin DC changes?

Check Components between U0221 and

U0271

Check Con-nection to µP

port

PTT

NO

YES

NO

YESYES

YES

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

EXTPTT

RXAUDIO

Check Accessories

J0501Audio at Pin

16 & Pin 1

Check Spk. Flex Connec-tion & Control-

head

Audio at Audio PA

(U0271) input

Check ASFIC U0221

Check Audio PA (U0271)

Check Receiver &

IF IC

Audio at Pin 2

U0221?

NO

NO

NO

YES

YES

NO

YES

NO

Before troubleshooting the controller section according to this chart please check the follow-ing:1. Check tuning and CPS settings2. Check if Alert Tones are enabled3. Check if Controlhead is OK4. Check board visually

9.3VDC at Pin 5 of U0641?

YES

NO

5V DC at Pin OUT of

U0651?

YES

NO

Check U0641, Q0641, Q0661, D0660 &

D0661

Check U0651, D0651, D0621

ControllerCheck

2-2 Controller Troubleshooting Chart


3-1

Section 3

CONTROLLER SCHEMATICS / PARTS LISTS



This Chapter shows the Schematics and the Parts Lists for the Controller circuits.

1.2 Voice Storage Facility

The Voice Storage is fitted on all MPT radios GM338/GM398 as standard.The schematics, component layout and parts list for these circuits are shown in this chapter. The Voice Storage schematic is shown in Tables below.

.

.

Table 3-1 Controller T5 Diagrams and Parts Lists

Controller T5 used on PCB :8486172B06 VHF, 1-25W

SCHEMATICSController OverallSupply VoltageAudioI/OMicroprocessorVoice Storage (if fitted)

Page 3-3Page 3-4Page 3-5Page 3-6Page 3-7Page 3-8

Parts ListController T5 Page 3-9


Controller T7 used on PCB :T7 on 8486172B07 VHF, 1-25WT7 on 8485670Z02 UHF B1, 1-25W

SCHEMATICSController OverallSupply VoltageAudioI/O MicroprocessorVoice Storage (if fitted)





Controller T9 used on PCB :T9 on 8485670Z03 UHF B1, 1-25W

SCHEMATICSController OverallSupply VoltageAudioI/O MicroprocessorVoice Storage (if fitted)



Con

trol

ler

T5

/ Sch

emat

ic D

iagr

ams

3-3

2.0

Co

ntr

olle

r T

5 / S

chem

atic

Dia

gra

ms

T5

0102

727B

49T

5 01

0272

7B50

T5

0102

727B

51 M

PT

T5

0102

727B

52 S

ELV

/MD

CT

5 01

0272

7B54

SE

L5/M

DC

T5

0102

727B

53 M

PT

T5

0102

727B

55T

3 01

0272

7B39

T3

0102

727B

40 M

PT

P7

0102

727B

13P

7 01

0272

7B14

P7

0102

727B

17 M

PT

P7

0102

727B

18 S

EL5

/MD

C

P6

0102

727B

07P

6 01

0272

7B04

SE

LV/M

DC

P6

0102

727B

03 M

PT

P1

0102

726B

33P

1 01

0272

6B32

P6

0102

727B

02

P4

0102

726B

88

T2

0102

727B

25 S

ELV

/MD

C

P4

0102

726B

87

P6

0102

727B

05 M

PT

P6

0102

727B

06 S

EL5

/MD

C

P6

0102

727B

01

P5

0102

726B

97 S

EL5

/MD

CP

5 01

0272

6B96

P5

0102

726B

95 M

PT

T2

0102

727B

26 M

PT

T2

0102

727B

28

P3

0102

726B

68P

2 01

0272

6B65

P1

0102

726B

30

P7

0102

727B

19

P5

0102

726B

94

P5

0102

726B

93

T3

0102

727B

41 S

ELV

/MD

CT

3 01

0272

7B43

SE

L5/M

DC

P4

0102

726B

86

P4

0102

726B

85P

4 01

0272

6B84

P3

0102

726B

35P

2 01

0272

6B35

T2

0102

727B

22T

2 01

0272

7B23

T2

0102

727B

24 M

PT

T2

0102

727B

27 S

EL5

/MD

CT

3 01

0272

7B38

T3

0102

727B

42 M

PT

IN_5

V_R

F_R

EG

ON

_OF

F_C

ON

TR

OL

PA

SU

PV

LTG

RE

SE

T

VS

TB

Y

T3

0102

727B

44

P2

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726B

64

P2

0102

726B

66P

3 01

0272

6B71

P3

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726B

70

P3

0102

726B

69

P1

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726B

35P

2 01

0272

6B67

P1

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726B

31

P7

0102

727B

16 S

ELV

/MD

CP

7 01

0272

7B15

MP

T

T4

0102

727B

50T

4 01

0272

7B49

T4

0102

727B

51 M

PT

T4

0102

727B

52 S

ELV

/MD

CT

4 01

0272

7B54

SE

L5/M

DC

T4

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727B

53 M

PT

T4

0102

727B

55

P5

0102

726B

92

TX

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D_S

ND

UR

X_S

ND

VS

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DS

EL

VS

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EL

VS

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T

VS

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VS

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LY_V

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9V3

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AG

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DC

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WE

R_O

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EM

ER

GE

NC

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ON

TR

OL

EX

T_S

WB

+

FLT

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IGN

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N_C

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TR

OL

INT

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B+

ON

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ON

TR

OL

OPT_PTT

PA

SU

PV

LTG

PA

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R_S

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RD

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RESET

RS

SI

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T

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RX

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T_F

ILT

ER

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DIO

SC

I_T

XSPI(0:10)

SP

KR

+S

PK

R-

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MP

SE

NS

E

TX

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D_R

TN

GP3_IN_ACC6

GP4_IN_OUT_ACC8

GP5_IN_ACC9

GP6_IN_ACC10

GP7_IN_OUT_ACC12

GP8_IN_OUT_ACC14

HA

ND

SE

T_A

UD

IO

IGN

ITIO

N_C

ON

TR

OL

INT

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INT

_SW

B+

IN_5

V_R

F_R

EG

LOC

KM

OD

IN

MO

SB

IAS

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MO

SB

IAS

_3

NO

ISE

_BLN

KR

5V_R

F9V

3B

OO

T_C

NT

RL

BUS+

CH

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T

CN

TLV

LTG

DIS

CA

UD

IO

EM

ER

GE

NC

Y_C

ON

TR

OL

EX

P_B

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EQ

EX

T_M

IC

EX

T_S

WB

+

FLA

T_R

X_S

ND

FLA

T_T

X_R

TN

FLT

_A+

GP1_IN_ACC3

GP2_OUT_ACC4

TE

MP

SE

NS

E

VS

TB

Y

VS

_GA

INS

EL

VS

_IN

T

VS

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C

VO

ICE

_ST

OR

AG

E

5VD

FLA

T_R

X_S

ND

RX

_AU

D_R

TNSP

I(0:

10)

VS

_AU

DS

EL

VS

_IN

TV

S_M

ICV

S_R

AC

IO

16_8

MH

Z

5VD

GP3_IN_ACC6

GP4_IN_OUT_ACC8

GP5_IN_ACC9

GP6_IN_ACC10

GP7_IN_OUT_ACC12

GP8_IN_OUT_ACC14

GPIO(0:13)

LOC

K

ON

_OF

F_C

ON

TR

OL

OPT_PTT

RD

Y

RESET

RS

SI

RX

_AD

AP

T

SC

I_T

X

SPI(0:10)

TX

_AU

D_R

TN

TX

_AU

D_S

ND

UR

X_S

ND

VS

_AU

DS

EL

VS

_MIC

CO

NT

RO

LLE

R

5VD

BA

TT

ER

Y_V

OLT

AG

E

BO

OT

_CN

TR

L

BUS+

CNTLR_AUDIO(0:7)

CN

TLV

LTG

EX

T_B

D_R

EQ

FLT

_A+

GP1_IN_ACC3

GP2_OUT_ACC4

FLA

T_T

X_R

TN

FLT

_A+

GPIO(0:13) HA

ND

SE

T_A

UD

IO

INT

_MIC

INT

_SW

B+

MO

DIN

MO

SB

IAS

_2

MO

SB

IAS

_3

NO

ISE

_BLN

KR

PA

_PW

R_S

ET

RX

_AU

D_R

TN

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

SPI(0:10)S

PK

R+

SP

KR

-

EX

T_S

WB

+E

XT

_SW

B+

PA

SU

PV

LTG

PA

SU

PV

LTG

FLT

_A+

FLT

_A+

AU

DIO

16_8

MH

Z

5VD

5V_R

F

9V3

CH

_AC

T

CN

TLR

_AU

DIO

(0:7

)

DC

_PO

WE

R_O

N

DIS

CA

UD

IOE

XT

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FLA

T_R

X_S

ND

OP

T_P

TT

OP

T_P

TT

CH

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TC

H_A

CT

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X_S

ND

UR

X_S

ND

VS

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INS

EL

VS

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INS

EL

MO

SB

IAS

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OS

BIA

S_3

INT

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B+

INT

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B+

EX

T_M

ICE

XT

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IN_5

V_R

F_R

EG

IN_5

V_R

F_R

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SC

I_T

XS

CI_

TX

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VS

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5VD

5VD

9V3

9V3

HA

ND

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IOH

AN

DS

ET

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DIO

SP

KR

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PK

R+

SP

KR

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PK

R-

EM

ER

GE

NC

Y_C

ON

TR

OL

EM

ER

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NC

Y_C

ON

TR

OL

IGN

ITIO

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ON

TR

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IGN

ITIO

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ON

TR

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ON

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F_C

ON

TR

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ON

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F_C

ON

TR

OL

BA

TT

ER

Y_V

OLT

AG

EB

AT

TE

RY

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GE

VS

TB

YV

ST

BY

RD

YR

DY

PA

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R_S

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MO

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OS

BIA

S_2

MO

DIN

MO

DIN

TX

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D_S

ND

TX

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D_S

ND

FLA

T_R

X_S

ND

FLA

T_R

X_S

ND

16_8

MH

Z16

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HZ

TX

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D_R

TN

TX

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D_R

TN

FLA

T_T

X_R

TN

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T_T

X_R

TN

RX

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TN

RX

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D_R

TN

DIS

CA

UD

IOD

ISC

AU

DIO

INT

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INT

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5V_R

F5V

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RX

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T_F

ILT

ER

ED

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DIO

RX

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T_F

ILT

ER

ED

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DIO

GP

1G

P1

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

BO

OT

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TR

LB

OO

T_C

NT

RL

VS

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DS

EL

VS

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DS

EL

TE

MP

SE

NS

ET

EM

PS

EN

SE

CN

TLV

LTG

CN

TLV

LTG

VS

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CV

S_R

AC

VS

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TV

S_I

NT

RS

SI

RS

SI

LOC

KLO

CK

RX

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AP

TR

X_A

DA

PT

NO

ISE

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KR

NO

ISE

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KR

PA

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ET

CN

TR

L_A

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IO(0

:7)

CN

TR

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IO(0

:7)

GP

IO(0

:13)

GP

IO(0

:13)

SP

I(0:

10)

SP

I(0:

10)

BU

S+

BU

S+

RE

SE

TR

ES

ET

GP

8G

P8

GP

7G

P7

GP

6G

P6

GP

5G

P5

GP

4G

P4

GP

3G

P3

GP

2G

P2

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3051

0-O

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chem

atic

Dia

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3-4

Con

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/ Sch

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0.1u

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1-2

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1

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1-1

10K

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2

C066

2.0

1uF

150K

D066

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R065

2

10

24K

Q06

41

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30.

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31.

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3-5

CH_ACTSQ_DETLSIO

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CLK

HSIO

VOX

GP2_OUT

CSX

DATA

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24K

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56K

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AT

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6

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11

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6

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92 VDDSYN

69 VRH68

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PG

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PG

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5

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760

28PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR6

2 PD5_SSPD6_LVIN3

PE

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PE

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PE

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PC

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637

PC

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97 PD0_RXD98 PD1_TXD99 PD2_MISO100 PD3_MOSI1 PD4_SCK

8PB6_ADDR147PB7_ADDR15

14PBO_ADDR8

30P

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031

PC

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233

PC

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435

PA5_OC3_OC185 PA6_OC2_OC186 PA7_PA1_OC1

10PB1_ADDR911PB2_ADDR109PB3_ADDR11

21PB4_ADDR1215PB5_ADDR13

LVOUT95

58M

OD

A_L

IR57

MO

DB

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TB

Y

79 PA0_IC380 PA1_IC281 PA2_IC182 PA3_IC4_OC5_OC183 PA4_OC4_OC184

59 AVDD

70AVSS

89E

CLK

90 EXTAL

96IR

Q

U01

01M

C68

HC

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100p

FC

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100p

FC

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0

4

10

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79

47K

0

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16

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24K

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52

330K

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3

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12

6

2

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K 10K

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110

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10

1

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1000

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07

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14

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04

5

11

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1

11

12

3

1

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4

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3

0

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2 3

0

13

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17 9

D01

79

3

R01

73

RA

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BU

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LTG

5VD

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GP

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GP

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GP

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UT

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C4

R_W

FLA

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FLA

SH

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5VD

IRQ

IRQ

AD

DR

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DA

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2

FR

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7

VS

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5VD

5VD

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RE

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SP

I(0:

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SP

I(0:

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SP

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SP

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GP

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5VD

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GP

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5VD

5VD

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10

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12VSSD

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21N

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23N

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2R

AC

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26 VC

CA

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CC

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C10

28N

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4N

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C3

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P0

C02

2521

1374

3E20

100n

F 1

6V

C02

2621

1374

3E20

100n

F 1

6V

C02

2823

1104

9A07

TAN

T C

P 1

uF 1

0% 1

6V

C02

3121

1374

3B29

1 U

F 1

0% 1

6V

C02

3221

1374

3E20

100n

F 1

6V

C02

3421

1374

3E20

100n

F 1

6V

C02

3521

1374

3E07

22nF

16V

C02

3621

1374

3E10

.033

UF

10%

C02

4121

1374

3E20

100n

F 1

6V

C02

4321

1374

0F51

100p

F 5

% 5

0V

C02

4421

1374

3E20

100n

F 1

6V

C02

4521

1374

3E20

100n

F 1

6V

C02

4621

1374

1F49

10nF

50V

C02

5223

1104

9A07

TAN

T C

P 1

uF 1

0%

C02

5421

1374

3E20

100n

F 1

6V

C02

5521

1374

3E20

100n

F 1

6V

C02

6121

1374

3E20

100n

F 1

6V

C02

6221

1374

0F49

82pF

5%

50V

C02

6521

1374

3E20

100n

F 1

6V

C02

6721

1374

1F49

10nF

50V

C02

7121

1374

1F49

10nF

50V

C02

7221

1374

3E20

100n

F 1

6V

C02

7321

1374

1F37

3.3n

F 5

0V

C02

7523

1104

9A99

TAN

T C

P 4

7uF

20%

10V

C02

7621

1374

1F25

1nF

50V

C02

7721

1374

1F25

1nF

50V

C03

01U

sed

in23

1104

9A07

GM

398

only

1uF

10%

16V

C03

02U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

03U

sed

in21

1374

0F51

GM

398

only

100p

F 5

% 5

0V

C03

04U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

05U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

24U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

31U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

41U

sed

in23

1104

9A07

GM

398

only

TAN

T C

P 1

uF 1

0% 1

6V

C03

42U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

43U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

44U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C03

51U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

C03

52U

sed

in21

1374

3E07

GM

398

only

22nF

16V

C03

53U

sed

in23

1104

9A97

GM

398

only

TAN

T C

HIP

33

UF

16

C03

54U

sed

in21

1374

3E20

GM

398

only

100n

F 1

6V

C04

2121

1374

3N48

82.0

PF

5%

C04

2221

1374

1F17

470p

F 5

0V

C04

2321

1374

1F17

470p

F 5

0V

C04

2621

1374

3L09

470

PF

10%

C04

2721

1374

3L09

470

PF

10%

C04

2821

1374

3N48

82.0

PF

5%

C04

2921

1374

3L09

470

PF

10%

C04

3021

1374

1F17

470p

F 5

0V

C04

3121

1374

1F17

470p

F 5

0V

C04

4521

1374

3L09

470

PF

10%

C04

4621

1374

3L09

470

PF

10%

C04

4721

1374

3L09

470

PF

10%

C04

4821

1374

3L09

470

PF

10%

C04

4921

1374

3L09

470

PF

10%

C04

7021

1374

3L09

470

PF

10%

C04

7121

1374

3N48

82.0

PF

5%

C04

7221

1374

3N48

82.0

PF

5%

C04

7321

1374

3N48

82.0

PF

5%

C04

7421

1374

3L09

470

PF

10%

C04

7621

1374

3L09

470

PF

10%

C04

7721

1374

3L09

470

PF

10%

C04

7821

1374

3L09

470

PF

10%

C04

8221

1374

3L09

470

PF

10%

C04

8321

1374

3L09

470

PF

10%

C04

8421

1374

1F17

470

pF 5

0V

C04

8521

1374

3L09

470

PF

10%

C04

8621

1374

3L09

470

PF

10%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

C04

8721

1374

3L09

470

PF

10%

C04

8821

1374

3L09

470

PF

10%

C04

9021

1374

3L09

470

PF

10%

C04

9121

1374

3L09

470

PF

10%

C04

9221

1374

3L09

470

PF

10%

C04

9321

1374

3L09

470

PF

10%

C04

9421

1374

3L09

470

PF

10%

C04

9521

1374

3L09

470

PF

10%

C04

9621

1374

3L09

470

PF

10%

C04

9721

1374

3L09

470

PF

10%

C04

9921

1374

3L09

470

PF

10%

C05

0121

1374

1F49

10nF

50V

C05

0221

1374

3L09

470

PF

10%

C05

0321

1374

3L09

470

PF

10%

C05

0421

1374

3L09

470

PF

10%

C05

0521

1374

3L09

470

PF

10%

C05

0621

1374

3L09

470

PF

10%

C05

0821

1374

3L09

470

PF

10%

C05

0921

1374

3L09

470

PF

10%

C05

1021

1374

1F17

470

pF 5

0V

C05

1121

1374

3L09

470

PF

10%

C05

1221

1374

3L09

470

PF

10%

C05

1321

1374

1F17

470

pF 5

0V

C05

1421

1374

3L09

470

PF

10%

C05

1521

1374

3L09

470

PF

10%

C05

1621

1374

1F49

10nF

50V

C05

1721

1374

3N48

82.0

PF

5%

C05

1821

1374

3L09

470

PF

10%

C05

4123

1104

9A05

TAN

T C

P 4

70nF

10%

25V

C05

4223

1104

9A99

TAN

T C

P 4

7uF

20%

10V

C05

9121

1374

3E20

100n

F 1

6V

C05

9221

1374

3E20

100n

F 1

6V

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

3-10

Con

trol

ler

T5

/ Sch

emat

ic D

iagr

ams

C05

9321

1374

1B69

100n

F 5

0V

C06

0121

1374

1F17

470p

F 5

0V

C06

0323

8009

0M24

LYT

10u

F 5

0V 2

0%

C06

1123

1104

9C06

TAN

T C

P 2

2uF

20%

35V

C06

1221

1374

3E20

100n

F 1

6V

C06

2223

1104

9A99

TAN

T C

P 4

7uF

20%

10V

C06

4121

1374

1F17

470p

F 5

0V

C06

4423

1104

9A97

TAN

T C

HIP

33

UF

16

C06

4521

1374

3E20

100n

F 1

6V

C06

5223

1104

9A97

TAN

T C

HIP

33

UF

16

C06

5423

1104

9A57

TAN

T C

P 1

0uF

10%

16V

C06

5521

1374

3E20

100n

F 1

6V

C06

6123

1104

9C05

TAN

T C

P 4

7uF

10%

16V

C06

6221

1374

1F49

10nF

50V

C06

6321

1374

3E20

100n

F 1

6V

C06

7121

1374

3E20

100n

F 1

6V

C06

8121

1374

3E20

100n

F 1

6V

D01

0148

8023

6E05

CH

IP S

CH

OT

TK

Y

D01

5148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D01

7948

1383

3C02

DU

AL

SO

T M

MB

D61

00

D03

01U

sed

in48

0224

5J47

GM

398

only

SC

HO

TT

KY

BA

RR

IER

(R

B47

1E)

D06

2148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

5148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

6048

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

6148

1383

3C02

DU

AL

SO

T M

MB

D61

00

E02

7124

8465

7R01

Fer

rite

Bea

d

E02

7224

8465

7R01

Fer

rite

Bea

d

E06

3124

8465

7R01

Fer

rite

Bea

d

J040

109

0263

6Y02

CO

NN

FLE

X 1

2 P

IN

J045

109

0263

6Y01

CO

NN

FLE

X S

IDE

EN

TR

Y

J050

109

8610

5B01

CO

NN

SM

D 2

0 P

IN

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

J055

109

0550

5Y04

CO

NN

ZIF

HO

RIZ

ON

TAL

J055

209

0550

5Y03

CO

NN

ZIF

18P

IN

J060

109

8616

5B01

DC

PW

R C

ON

N

Q01

1048

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

5148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

7148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

7348

8005

2M01

NP

N D

RLN

GT

N M

XTA

Q01

7748

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8348

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8548

8004

8M01

NP

N D

IG 4

7k/4

7k

Q02

7148

1382

4A10

NP

N 4

0V .2

A

Q06

4148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q06

6148

0592

1T02

DU

AL

RO

HM

FM

C2

RH

Q06

6248

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Q06

6348

8004

8M01

NP

N D

IG 4

7k/4

7k

Q06

8148

8005

2M01

NP

N D

RLN

GT

N M

XTA

R01

0106

6205

7A73

10k

1/16

W 5

%

R01

0206

6205

7A65

4k7

1/16

W 5

%

R01

0406

6205

7A73

10k

1/16

W 5

%

R01

05U

sed

in06

6205

7A97

GM

338

only

100k

1/1

6W

R01

06U

sed

in06

6205

7B47

GM

398

only

0 1/

16W

R01

0806

6205

7A57

2k2

1/16

W 5

%

R01

1106

6205

7B47

0 1/

16W

R01

1306

6205

7A73

10k

1/16

W 5

%

R01

1406

6205

7A73

10k

1/16

W 5

%

R01

1506

6205

7A73

10k

1/16

W 5

%

R01

1706

6205

7A63

3k9

1/16

W 5

%

R01

2106

6205

7A97

100k

1/1

6W

R01

3106

6205

7B46

10.0

ME

G O

HM

S 5

%

R01

3206

6205

7B10

330k

1/1

6W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R01

5106

6205

7A82

24K

1/1

6W 5

%

R01

5206

6205

7A82

24K

1/1

6W 5

%

R01

7006

6205

7A73

10k

1/16

W 5

%

R01

7106

6205

7A65

4k7

1/16

W 5

%

R01

7206

6205

7A73

10k

1/16

W 5

%

R01

7306

6205

7A65

4k7

1/16

W 5

%

R01

7406

6205

7A73

10k

1/16

W 5

%

R01

7506

6205

7A73

10k

1/16

W 5

%

R01

7606

6205

7A84

30k

1/16

W 5

%

R01

7706

6205

7A65

4k7

1/16

W 5

%

R01

7806

6205

7A89

47k

1/16

W 5

%

R01

7906

6205

7A89

47k

1/16

W 5

%

R01

8106

6205

7A65

4k7

1/16

W 5

%

R01

8206

6205

7A89

47k

1/16

W 5

%

R01

8306

6205

7A65

4k7

1/16

W 5

%

R01

8406

6205

7A89

47k

1/16

W 5

%

R01

8506

6205

7A65

4k7

1/16

W 5

%

R01

8606

6205

7A89

47k

1/16

W 5

%

R02

0106

6205

7A25

100

1/16

W 5

%

R02

0206

6205

7A43

560

1/16

W 5

%

R02

0306

6205

7A25

100

1/16

W 5

%

R02

0406

6205

7A43

560

1/16

W 5

%

R02

0506

6205

7A73

10k

1/16

W 5

%

R02

0606

6205

7A73

10k

1/16

W 5

%

R02

0706

6205

7A57

2k2

1/16

W 5

%

R02

0806

6205

7A57

2k2

1/16

W 5

%

R02

1106

6007

6E70

FIL

M 7

500

R02

1206

6007

6E70

FIL

M 7

500

R02

2106

6205

7A82

24K

1/1

6W 5

%

R02

2206

6205

7A82

24K

1/1

6W 5

%

R02

2306

6205

7A84

30k

1/16

W 5

%

R02

2406

6205

7A71

8k2

1/16

W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R02

2806

6205

7B47

0 1/

16W

R02

2906

6205

7A25

100

1/16

W 5

%

R02

4106

6205

7A89

47k

1/16

W 5

%

R02

4206

6205

7B47

0 1/

16W

R02

5106

6205

7A89

47k

1/16

W 5

%

R02

5206

6205

7A91

56K

1/1

6W 5

%

R02

5306

6205

7A97

100k

1/1

6W

R02

6106

6205

7A73

10k

1/16

W 5

%

R02

6206

6205

7A97

100k

1/1

6W

R02

6506

6205

7A82

24K

1/1

6W 5

%

R02

6706

6205

7A89

47k

1/16

W 5

%

R02

6806

6205

7A73

10k

1/16

W 5

%

R02

6906

6205

7A41

470

1/16

W 5

%

R02

7306

6205

7A82

24K

1/1

6W 5

%

R02

7506

6205

7A73

10k

1/16

W 5

%

R02

7606

6205

7A77

15k

1/16

W 5

%

R03

23U

sed

in06

6205

7A79

GM

398

only

18k

1/16

W 5

%

R03

24U

sed

in06

6205

7A79

GM

398

only

18k

1/16

W 5

%

R03

31U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

32U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

33U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

35U

sed

in06

6205

7B02

GM

398

only

150k

1/1

6W

R03

41U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

42U

sed

in06

6205

7A55

GM

398

only

1k8

1/16

W 5

%

R03

43U

sed

in06

6205

7B47

GM

398

only

0 1/

16W

R03

44U

sed

in06

6205

7A91

GM

398

only

56K

1/1

6W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

Con

trol

ler

T5

/ Sch

emat

ic D

iagr

ams

3-11

* M

otor

ola

Dep

ot S

ervi

cing

onl

y

Ref

eren

ce d

esig

nato

rs w

ith a

n as

teris

k in

dica

te

com

pone

nts

whi

ch a

re n

ot fi

eldr

epla

ceab

le

beca

use

they

nee

d to

be

calib

rate

d w

ith

spec

ializ

ed fa

ctor

y eq

uipm

ent a

fter

inst

alla

tion.

R

adio

s in

whi

ch th

ese

part

s ha

ve b

een

repl

aced

in

the

field

will

be

off f

requ

ency

at t

empe

ratu

re

extr

emes

.

R03

45U

sed

in06

6205

7A66

GM

398

only

5k1

1/16

W 5

%

R03

46U

sed

in06

6205

7A89

GM

398

only

47k

1/16

W 5

%

R03

47U

sed

in06

6205

7A89

GM

398

only

47k

1/16

W 5

%

R04

0106

6205

7A33

220

1/16

W 5

%

R04

0706

6205

7M26

10 5

%

R04

0806

6205

7A25

100

1/16

W 5

%

R04

0906

6205

7M26

10 5

%

R04

1206

6205

7B47

0 1/

16W

R04

4106

6205

7B47

0 1/

16W

R04

6706

6205

7M26

10 5

%

R04

6806

6205

7M26

10 5

%

R04

8106

6205

7B47

0 1/

16W

R04

8206

6205

7B47

0 1/

16W

R05

1006

6205

7A65

4k7

1/16

W 5

%

R05

1106

6205

7A97

100k

1/1

6W

R05

1206

6205

7A77

15k

1/16

W 5

%

R05

2506

6205

7A97

100k

1/1

6W

R05

2906

6205

7A89

47k

1/16

W 5

%

R05

3006

6205

7B47

0 1/

16W

R05

3106

6205

7A43

560

1/16

W 5

%

R05

3306

6205

7B47

0 1/

16W

R05

3506

6205

7A49

1k 1

/16W

R05

3706

6205

7A33

220

1/16

W 5

%

R05

3806

6205

7A33

220

1/16

W 5

%

R05

3906

6205

7A65

4k7

1/16

W 5

%

R05

4106

6205

7A83

27k

1/16

W 5

%

R05

9106

6205

7A82

24K

1/1

6W 5

%

R05

9206

6205

7A01

10 1

/16W

5%

R06

1106

6205

7A91

56K

1/1

6W 5

%

R06

1206

6205

7A65

4k7

1/16

W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R06

2106

6205

7A82

24K

1/1

6W 5

%

R06

4106

6205

7A73

10k

1/16

W 5

%

R06

4206

6007

6E70

FIL

M 7

500

1 1

R06

4306

6007

6E51

FIL

M 1

200

1 1

R06

5106

6205

7A01

10 1

/16W

5%

R06

5206

6205

7A01

10 1

/16W

5%

R06

6106

6205

7A49

1k 1

/16W

5%

R06

6206

6205

7B02

150k

1/1

6W

R06

7106

6205

7A84

30k

1/16

W 5

%

R06

7206

6205

7A73

10k

1/16

W 5

%

R06

8106

6205

7A79

18k

1/16

W 5

%

R06

8206

6205

7A93

68k

1/16

W 5

%

U01

0151

0222

6J56

MIC

RO

PR

OC

ES

SO

R

MC

68H

C1

* U

0111

5102

463J

64E

EP

RO

M X

2512

8-2.

7 S

O8

* U

0121

5186

137B

01IC

512

KX

8 F

LAS

H R

OM

(A

T49

BV

020)

U01

2251

8596

3A21

IC 3

2K x

8 S

RA

M

U01

4151

1380

5A30

IC 1

0F8

DC

DR

/RE

MU

X

74H

C13

8

U02

1151

8322

2M49

IC Q

UA

D O

PA

MP

__3

403

U02

2151

8596

3A53

AS

FIC

CM

P 0

.5M

M T

QF

P

U02

5151

1380

6A20

MU

X/D

EM

UX

,TR

IPLE

2-

U02

7151

0969

9X01

AU

DIO

PA

TD

A15

19C

U03

01U

sed

in51

0915

2M01

GM

398

only

EE

PR

OM

AN

ALO

G

ISD

3312

0EI

U03

31U

sed

in51

8620

4B01

GM

398

only

BU

FF

ER

/DR

IVE

R

74A

HC

T1G

125

U03

41U

sed

in51

8093

2W01

GM

398

only

LIN

EA

R IC

OP

AM

P

U03

42U

sed

in51

0575

0U28

GM

398

only

SN

GL

AN

ALO

G S

WIT

CH

U03

51U

sed

in51

0246

3J40

GM

398

only

RE

GU

LAT

OR

, 3.3

V

U06

1151

8330

8X01

AD

J V

LTG

RE

G L

M29

41

TO

263

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

U06

4151

8330

8X01

AD

J V

LTG

RE

G L

M29

41

TO

263

U06

5151

1381

6A07

RE

G 5

V P

OS

500

MA

M

C78

M05

U06

5351

8620

5B01

MC

3346

4N-4

5AT

R

SO

T23

-5-R

B

VR

0151

4813

830A

155.

6V 5

% 2

25m

W

VR

0501

4805

656W

09Z

EN

ER

QU

AD

M

MQ

A20

VT

1

VR

0503

4805

656W

09Z

EN

ER

QU

AD

M

MQ

A20

VT

1

VR

0504

4813

830A

40S

OC

23 A

UT

O S

DN

VR

0505

4805

656W

09Z

EN

ER

QU

AD

M

MQ

A20

VT

1

VR

0509

4813

830A

40S

OC

23 A

UT

O S

DN

VR

0510

4813

830A

40S

OC

23 A

UT

O S

DN

VR

0537

4813

830A

155.

6V 5

% 2

25m

W

VR

0541

4813

830A

2714

V 5

% 2

25M

W

VR

0601

4813

832C

77T

RA

NS

SU

P. 2

4V H

IG-

PW

R

VR

0621

4813

830A

15D

IOD

E 5

.6V

5%

225

mW

Y01

3148

8011

3R19

CR

YS

TAL

38.4

KH

Z

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

3-12

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

3.0

Co

ntr

olle

r T

7/T

9 S

chem

atic

Dia

gra

ms

T2

0102

727B

24 M

PT

T2

0102

727B

27 S

EL5

/MD

CT

3 01

0272

7B38

T3

0102

727B

42 M

PT

T3

0102

727B

44

P2

0102

726B

64

P2

0102

726B

66P

3 01

0272

6B71

P3

0102

726B

70

P3

0102

726B

69P

1 01

0272

6B35

P2

0102

726B

67

P1

0102

726B

31

P7

0102

727B

16 S

ELV

/MD

CP

7 01

0272

7B15

MP

T

T4

0102

727B

50T

4 01

0272

7B49

T4

0102

727B

51 M

PT

T4

0102

727B

52 S

ELV

/MD

CT

4 01

0272

7B54

SE

L5/M

DC

T4

0102

727B

53 M

PT

T4

0102

727B

55

P5

0102

726B

92P

6 01

0272

7B04

SE

LV/M

DC

P6

0102

727B

03 M

PT

P1

0102

726B

33

P1

0102

726B

32

P6

0102

727B

02P

4 01

0272

6B88

T2

0102

727B

25 S

ELV

/MD

C

P4

0102

726B

87

P6

0102

727B

05 M

PT

P6

0102

727B

06 S

EL5

/MD

CP

6 01

0272

7B01

P5

0102

726B

97 S

EL5

/MD

C

P5

0102

726B

96

P5

0102

726B

95 M

PT

T2

0102

727B

26 M

PT

T2

0102

727B

28

P3

0102

726B

68P

2 01

0272

6B65

P1

0102

726B

30

P7

0102

727B

19

P5

0102

726B

94

P5

0102

726B

93

T3

0102

727B

41 S

ELV

/MD

CT

3 01

0272

7B43

SE

L5/M

DC

P4

0102

726B

86

P4

0102

726B

85P

4 01

0272

6B84

P3

0102

726B

35P

2 01

0272

6B35

T2

0102

727B

22T

2 01

0272

7B23

INT

_SW

B+

IN_5

V_R

F_R

EG

ON

_OF

F_C

ON

TR

OL

PA

SU

PV

LTG

RE

SE

T

VS

TB

Y

T7

0102

727B

62T

7 01

0272

7B63

T7

0102

727B

68T

7 01

0272

7B66

ST

AN

DA

RD

T7

0102

727B

65 P

RIM

E

T6

0102

727B

67

one

for

LDM

OS

PA

CH

AS

SIS

and

one

for

BIP

OLA

R P

A C

HA

SS

IS

T5

0102

727B

49T

5 01

0272

7B50

T5

0102

727B

51 M

PT

T5

0102

727B

52 S

ELV

/MD

CT

5 01

0272

7B54

SE

L5/M

DC

T5

0102

727B

53 M

PT

T5

0102

727B

55

T3

0102

727B

39

T3

0102

727B

40 M

PT

P7

0102

727B

13P

7 01

0272

7B14

P7

0102

727B

17 M

PT

P7

0102

727B

18 S

EL5

/MD

CP

6 01

0272

7B07

TX

_AU

D_S

ND

UR

X_S

ND

VS

_AU

DS

EL

VS

_GA

INS

EL

VS

_IN

T

VS

_MIC

VS

_RA

C

SU

PP

LY_V

OLT

AG

E

5VD

9V3

BA

TT

ER

Y_V

OLT

AG

ED

C_P

OW

ER

_ON

EM

ER

GE

NC

Y_C

ON

TR

OL

EX

T_S

WB

+

FLT

_A+

IGN

ITIO

N_C

ON

TR

OL

NO

ISE

_BLN

KR

ON

_OF

F_C

ON

TR

OL

OPT_PTT

PA

SU

PV

LTG

PA

_PW

R_S

ET

RD

Y

RESET

RS

SI

RX

_AU

D_R

TN

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

SC

I_T

XSPI(0:10)

SP

KR

+

SP

KR

-

TE

MP

SE

NS

E

TX

_AU

D_R

TN

GP2_OUT_ACC4

GP3_IN_ACC6

GP4_IN_OUT_ACC8

GP5_IN_ACC9

GP6_IN_ACC10

GP7_IN_OUT_ACC12

GP8_IN_OUT_ACC14

HA

ND

SE

T_A

UD

IO

IGN

ITIO

N_C

ON

TR

OL

INT

_MIC

INT

_SW

B+

IN_5

V_R

F_R

EG

LOC

KM

OD

IN

MO

SB

IAS

_2

MO

SB

IAS

_3

5VD

5V_R

F

9V3

BO

OT

_CN

TR

L

BUS+

CH

_AC

T

CN

TLV

LTG

DIS

CA

UD

IO

EM

ER

GE

NC

Y_C

ON

TR

OL

EX

P_B

D_R

EQ

EX

T_M

IC

EX

T_S

WB

+

FLA

T_R

X_S

ND

FLA

T_T

X_R

TN

FLT

_A+

GP1_IN_ACC3

SPI(0:10)

TE

MP

SE

NS

E

VS

TB

Y

VS

_GA

INS

EL

VS

_IN

T

VS

_RA

C

VO

ICE

_ST

OR

AG

E

5VD

FLA

T_R

X_S

ND

RX

_AU

D_R

TN

SPI(0:10)

VS

_AU

DS

EL

VS

_IN

TV

S_M

IC

VS

_RA

C

IO

16_8

MH

Z

GP2_OUT_ACC4

GP3_IN_ACC6

GP4_IN_OUT_ACC8

GP5_IN_ACC9

GP6_IN_ACC10

GP7_IN_OUT_ACC12

GP8_IN_OUT_ACC14

GPIO(0:13)

LOC

K

ON

_OF

F_C

ON

TR

OL

OPT_PTT

RD

Y

RESET

RS

SI

RX

_AD

AP

T

SC

I_T

X

SP

KR

+

SP

KR

-

TX

_AU

D_R

TN

TX

_AU

D_S

ND

UR

X_S

ND

VS

_AU

DS

EL

VS

_MIC

CO

NT

RO

LLE

R

5VD

BA

TT

ER

Y_V

OLT

AG

E

BO

OT

_CN

TR

L

BUS+

CNTLR_AUDIO(0:7)

CN

TLV

LTG

EX

T_B

D_R

EQ

FLT

_A+

GP1_IN_ACC3

FLA

T_R

X_S

ND

FLA

T_T

X_R

TN

FLT

_A+

GPIO(0:13)H

AN

DS

ET

_AU

DIO

INT

_MIC

INT

_SW

B+

MO

DIN

MO

SB

IAS

_2

MO

SB

IAS

_3

NO

ISE

_BLN

KR

PA

_PW

R_S

ET

RX

_AD

AP

T

RX

_AU

D_R

TN R

X_F

LAT

_FIL

TE

RE

D_A

UD

IOSPI(0:10)

PA

SU

PV

LTG

PA

SU

PV

LTG

FLT

_A+

FLT

_A+

RX

_AD

AP

TR

X_A

DA

PT

AU

DIO

16_8

MH

Z

5VD

5V_R

F

9V3

CH

_AC

T

CNTLR_AUDIO(0:7) DC

_PO

WE

R_O

N

DIS

CA

UD

IO

EX

T_M

IC

CH

_AC

TC

H_A

CT

UR

X_S

ND

UR

X_S

ND

VS

_GA

INS

EL

VS

_GA

INS

EL

MO

SB

IAS

_3M

OS

BIA

S_3

INT

_SW

B+

INT

_SW

B+

EX

T_M

ICE

XT

_MIC

IN_5

V_R

F_R

EG

IN_5

V_R

F_R

EG

SC

I_T

XS

CI_

TX

VS

_MIC

VS

_MIC

5VD

5VD

9V3

9V3

EX

T_S

WB

+E

XT

_SW

B+

SP

KR

+S

PK

R+

SP

KR

-S

PK

R-

EM

ER

GE

NC

Y_C

ON

TR

OL

EM

ER

GE

NC

Y_C

ON

TR

OL

IGN

ITIO

N_C

ON

TR

OL

IGN

ITIO

N_C

ON

TR

OL

DC

_PO

WE

R_O

ND

C_P

OW

ER

_ON

ON

_OF

F_C

ON

TR

OL

ON

_OF

F_C

ON

TR

OL

BA

TT

ER

Y_V

OLT

AG

EB

AT

TE

RY

_VO

LTA

GE

VS

TB

YV

ST

BY

RD

YR

DY

OP

T_P

TT

OP

T_P

TT

MO

DIN

MO

DIN

TX

_AU

D_S

ND

TX

_AU

D_S

ND

FLA

T_R

X_S

ND

FLA

T_R

X_S

ND

16_8

MH

Z16

_8M

HZ

TX

_AU

D_R

TN

TX

_AU

D_R

TN

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

RX

_AU

D_R

TN

RX

_AU

D_R

TN

DIS

CA

UD

IOD

ISC

AU

DIO

INT

_MIC

INT

_MIC

5V_R

F5V

_RF

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

HA

ND

SE

T_A

UD

IOH

AN

DS

ET

_AU

DIO

GP

1G

P1

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

BO

OT

_CN

TR

LB

OO

T_C

NT

RL

VS

_AU

DS

EL

VS

_AU

DS

EL

TE

MP

SE

NS

ET

EM

PS

EN

SE

CN

TLV

LTG

CN

TLV

LTG

VS

_RA

CV

S_R

AC

VS

_IN

TV

S_I

NT

RS

SI

RS

SI

LOC

KLO

CK

NO

ISE

_BLN

KR

NO

ISE

_BLN

KR

PA

_PW

R_S

ET

PA

_PW

R_S

ET

MO

SB

IAS

_2M

OS

BIA

S_2

DU

MM

Y

CN

TR

L_A

UD

IO(0

:7)

CN

TR

L_A

UD

IO(0

:7)

GP

IO(0

:13)

GP

IO(0

:13)

SP

I(0:

10)

SP

I(0:

10)

BU

S+

BU

S+

RE

SE

TR

ES

ET

GP

8G

P8

GP

7G

P7

GP

6G

P6

GP

5G

P5

GP

4G

P4

GP

3G

P3

GP

2G

P2

ZW

G01

3052

5-O

ZW

G01

3052

5-O

Co

ntr

olle

r T

7/T

9 S

chem

atic

Dia

gra

m -

Ove

rall

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

3-13

C06

21

NU

2GN

D

1IN

OU

T3

TP

0661

NU

0.1u

F

NU

NU

J060

1-3

Q06

63

D06

21

C06

0310

uF

R06

61

1K

VR

0621

5.6V

2

NC

13

NC

25

NC

36

NC

47 8

NC

5

RE

SE

T1

U06

52M

C33

064

GN

D4

INP

UT

MC

78M

05U

0651

0.1u

FC

0663

R06

43

0.1u

F

1.2K

C06

51C

0655

0.1u

FC

0645

24V

470p

F

VR

0601

ON

_OF

F24

VIN

5V

OU

T

47uF

C06

22

U06

41LM

2941

1A

DJ

GN

D1

3G

ND

26

Q06

61

R06

1156

K

VR

0671

5.6V

68K

Q06

81 R06

82

R06

8118

K

57R

01E

0631

22uF

C06

11

R06

51

10

C06

5233

uF

R06

124.

7K

D06

61

Q06

62

R06

7130

KR

0671

30K

10K

6

2O

N_O

FF

VIN

4V

OU

T5

R06

72

LM29

41

U06

11 AD

J1

GN

D1 3

GN

D2

0.1u

F

10K

C06

71

R06

41

C06

62

J060

1-1

.01u

F

R06

6215

0K

D06

60

R06

52

R06

21

10

24K

2IN

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T1

RE

SE

T_

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41

MC

3346

4N-4

5AT

RU

0653 3GN

D

C06

5410

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470p

FC

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44

D06

51

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1-2

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FC

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DC

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IGN

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ON

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ON

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E

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EX

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PV

LTG

VS

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0V (

13,8

VD

C w

hen

rad

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ff)

6VD

C

5VD

C

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ng

res

et)

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3052

9-A

Co

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9 S

chem

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gra

m -

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ly V

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Con

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Sch

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ic D

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NU

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NU

NU

10K

NU

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27

NU

R02

6624

K

NU

NU

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0266

NU

NU

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27

1ME

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NU

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FC

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NU

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NU

D02

01

8

C02

42

NU

8.2K

R02

25

NU

NU

100p

F

C02

56

NU

SYN

CLK

HSIO

VOX

GP2_OUT

CSX

DATA

CH_ACTSQ_DETLSIO

F1200

TP

0222

30K

R02

23

C02

284,

7uF

R02

75

10K

Q02

71

0

R02

28

0.1u

F

C02

21

0.1u

F

R02

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0223

56K

0.1u

F

C02

61

7.5K

R02

12

7.5K

R02

11

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0236

9 108

4 11U

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0347

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10K

R02

68

24K

R02

65

VD

DD

AC

11VDDRC45

VD

DS

YN

27

VO

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1

SY

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TX

RT

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TXSND44U

IO10

URXOUT39

VD

DA

1

VD

DC

P32

VD

DD

33

MICEXT48

MICINT46

MOD40

NC

26

PLC

AP

8

PLC

AP

225

SQDET 17

SQ

IN9

GN

DA

3

GN

DD

31G

ND

D0

30

GNDRC47

GNDSYN 23

HSIO 19

LCAP 24

LSIO 18

DIS

C2

F12

0029

GCB0 15GCB1 14GCB2 13

GC

B3

35

GCB437GCB538

CHACT 16

CLK 21

CLK

168

34

CSX 20

DA

CG

6D

AC

R5

DA

CU

4

DATA 22

AG

CC

AP

12

AUDIO41

AUXRX43AUXTX42

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6

0.1u

F

560

R02

04

10K

R02

61

560

R02

02

82pF

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R02

01

R02

05

100

5

10K

8.2K

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20

9

8.2K

R02

24

100p

FC

0243

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42

0.1u

F

C02

0110

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6 57

4 11

11

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11-2

MC

3403

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24K

R02

73

100K

4

R02

53

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52

10K

R02

55

7

C02

0522

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FC

0267

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0272

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0271

0.1u

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1210

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R02

261M

EG

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06

10K

10K

R02

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15K

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31

1000

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76

7

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2

13 1214

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MC

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4

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C02

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C02

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0.1u

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C02

72

0.1u

F

0.1u

F

C02

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00pF

24K

R02

21

R02

62

100K

R02

56

2.2K

R02

57

100K

47K

R02

51

R02

2224

K

0.1u

FC

0222

0.1u

FC

0226

470

R02

69

0.1u

FC

0241

TP

0221

2.2K

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11-1

MC

3403

2 31

4 11

R02

07

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3

0.1u

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71.0

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10

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GN

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X

MC

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2200

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TX

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TN

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TX

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ND

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DIS

CA

UD

IO

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F

RX

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AP

T

FLA

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TN

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0.1u

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MO

DIN

INT

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B+

CH

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T

VA

G

9V3

9V3

9V3

VS

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MO

SB

IAS

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16_8

MH

Z

VA

G

EX

T_M

IC

5V_R

F

5V_R

F

5VD

5VD

5V_R

F5V

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5V_R

F

SP

KR

-

RX

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TN

INT

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UR

X_S

ND

FLA

T_R

X_S

ND

DC

_PO

WE

R_O

N

FLT

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5VD

SP

KR

+

5VD

PA

_PW

R_S

ET

MO

SB

IAS

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9V3

9V3

9V3

NO

ISE

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KR

VS

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DS

EL

SP

I(0:

10)

GP

IO(0

:13)

CN

TLR

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DIO

(0:7

)

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G

VA

G

HA

ND

SE

T_A

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IO

RX

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ER

ED

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DIO

80m

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MS

80m

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MS

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C (

0VD

C d

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rad

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ff)

13V

DC

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d

300m

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145m

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MS

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kHz

72m

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MS

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z

5VD

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X F

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0V D

C F

lat)

630m

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t

0 V

DC

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3052

8-A

Co

ntr

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chem

atic

Dia

gra

m -

Au

dio

Con

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ler

T7/

T9

Sch

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ic D

iagr

ams

3-15

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FC

0560

NU

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42

NU

470p

FC

0576

C04

4247

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NU

C05

5947

0pF

NU

J045

1-14

J055

1-3

NU

C05

58

NU

470p

F

J040

1-2 N

U

390n

H

NU

L048

2

NU

C05

540.

1uF

NU

INT

ER

NA

L O

PT

ION

BO

AR

D

39 38

9

4

VS

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NC

GR

OU

ND

GR

OU

ND

FA

ST

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DIS

CA

UD

IO

4D

B7

FLA

T_T

X_A

UD

IO

DIG

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T_4

DA

TA

EX

P1_

CS

11

DB

2

DIG

_IN

1

3

EX

P1_

CS

5

9V3

5VD

EX

T_B

D_P

TT

EX

T_M

IC_A

UD

IO

EX

P_B

D_P

TT

DA

TA

36 21

NC

BO

OT

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TR

L

Rx_

Aud

_Snd

ON

VS

_IN

T

VS

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C

16

DB

3

23 6

1

RS

T*

7 8

14

INT

_EX

T_V

dd

GR

OU

ND

DB

111 717 12

18

RS

SI

NC

J055

2

SP

I_M

ISO

RE

SE

T

FLT

_A+

26

FLA

T_T

X_R

TN

6

CS

X29

12-P

IN C

ON

NE

CT

OR

13

CLK

MIS

O

PC

B

16

20

SC

I_T

X

INT

_MIC

DIG

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_3

Tx_

Aud

_Snd

VS

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DS

EL

17

GR

OU

ND

SrD

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5

DIG

_IN

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ITH

WA

KE

UP

(E

ME

RG

EN

CY

)

13

37

DIG

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T_7 2

GM

300

SP

EA

KE

R-

CLK

DIS

CA

UD

IOC

H_A

CT

NC

NC

NC

6

NC

DB

6

AC

CE

SS

OR

Y

7

4

19

9

R/W

*

Opt

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NC

1310

33

NC

7

9

A0

EX

T_B

D_R

EQ

EX

T_B

D_C

SG

P4_

IN_O

UT

SP

I_C

LKS

PI_

MO

SI

DA

TA

VS

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INS

EL

Gnd

8

EX

P2_

CS

NC

EX

T_B

D_P

TT

GN

D5V

D

EX

P_B

D_P

TT

GN

D

RD

YO

PT

_PT

T

GN

D

DB

4

CLK

SP

EA

KE

R+

14

3

2

8

NC

10 11

Key

_Row

Key

_Int

rp

DIG

_IN

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T_4

9V3

VS

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5VD

DIG

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T2

(EX

TE

RN

AL_

ALA

RM

)

NC

HA

NS

ET

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DIO

30

13

J050

1

J045

1

DIG

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ITH

WA

KE

UP

(IG

NIT

ION

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LAT

/FIL

TE

RE

D_R

X_A

UD

IO

19

9

VS

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SW

B+

20

11

Fla

t_T

x_R

tn

NC

1 2

SrD

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EX

T_B

D_P

TT

27

OP

T_C

S22 18

40-P

IN C

ON

NE

CT

OR

DB

5

12

SC

K_S

nd

35

NC

NC

7 8

LED

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ON

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F_C

ON

TR

OL

20-P

IN C

ON

NE

CT

OR

1817

20

NC

15 1416

DIG

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ITH

WA

KE

UP

Tx_

Aud

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34

18

Vdd

d

2532 31

SP

EA

KE

R+

1

WA

RIS

TO

/FR

OM

RF

7

24

CS

*

3

1

NC

NC

3 5

15

CLK

9

J055

1

28

FLT

_A+

6

SP

EA

KE

R-

DIG

_IN

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T_8

16

3

OF

F_B

AT

T_D

AT

A_O

UT

3 4

EX

P_B

D_R

EQ

EX

T_B

D_P

TT

EX

T_B

D_P

TT

19

Det

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_Snd

12

Rx_

Aud

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NC

1

MIS

O

2

5 6 10 11 12

EX

P2_

CS

8

DB

0

DA

TA

11

CO

NT

RO

L H

EA

D

NC

10

OP

T_C

S

EX

PA

NS

ION

BO

AR

D

10

PT

T

Rdy

/Req

2

GR

OU

ND

1012

14

RE

AR

VIE

W

BU

S+

4 12

18-P

IN C

ON

NE

CT

OR

NC

GN

D

1 2 11 12 13

17

15

6

40

18-P

IN C

ON

NE

CT

OR

RS

232

INT

ER

FA

CE

BO

AR

D

Key

_Col

TO

/FR

OM

RF

8

5

6 7 8 9 10

5

15 16 17 184

1 2 3 9

1413 14 15 16 17 18

J040

1

5

4

15

GN

D

BU

S+

0R

0482

0R

0481

J050

1-8

470p

FC

0443

100K

R04

68

J055

2-20

J055

2-2

J055

2-5

J055

2-4

R05

39

4.7K

J055

1-39

J055

1-33

TP

0492

J055

1-34

82pF

C04

28

DA

TA

_CN

TLR

_2

J045

1-7

J055

2-1

C04

22

J055

1-18

7

470p

F

100K

R05

11

CS

X_C

NT

LR_1

J050

1-15

J055

2-3

VR

0510

33V

8

TE

MP

SE

NS

E

9

J045

1-12

5V_C

NT

LR_1

470p

FC

0506

0.1u

F

J045

1-1

C05

92

470p

FC

0478

15K

R05

12

C04

8747

0pF

R05

10

10

4.7K

NO

ISE

_BLN

KR

_CN

TLR

_1

R04

09

5.6V

VR

0537

C04

7382

pF

8

470p

F

J045

1-18

C05

02

J040

1-5

J055

1-31

J045

1-15

220

R05

37

J055

1-38

RE

SE

T

14V

VR

0541

R04

0710

470p

F

J055

1-5

J050

1-19

C04

96

VR

0504

33V

J055

1-9

J055

1-27

470p

FC

0474

470p

F

J055

1-20

C04

29

.01u

FC

0501

470p

F

J045

1-16

C04

2647

0pF

C04

45

J050

1-10

J045

1-8

RS

SI_

CN

TLR

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0pF

C04

97

R05

31

560

DA

TA

C04

2182

pF

R05

25

470p

F

100K

MO

SB

IAS

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NT

LR_1

C04

92

CLK

_CN

TLR

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RS

SI

C04

4647

0pF

IN_5

V_R

F_R

EG

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TLR

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J050

1-5

IN_5

V_R

F_R

EG

C04

72

DIS

CA

UD

IO

82pF

470p

FC

0484

100K

R05

4310

0K

R05

93

R04

421K

DIS

CA

UD

IO_C

NT

LR_1

LOC

K_C

NT

LR_1

C05

910.

1uF

TE

MP

SE

NS

E_C

NT

LR_1

C05

1047

0pF

J050

1-16

J045

1-3

J040

1-6

9V3

CLK

INT

_SW

BIN

T_S

WB

_CN

TLR

_1

J055

1-32

CLK

_CN

TLR

_1

J055

1-7

470p

FC

0476

470p

FC

0491

J055

1-13

470p

FC

0483

J045

1-11

J040

1-1

C05

05C

0504

470p

F47

0pF

470p

FC

0503

J055

1-24

C05

930.

1uF

470p

FC

0430

PA

SU

PV

LTG

_CN

TR

L_1

470p

F

J045

1-10

C05

09

0R04

12

C05

1447

0pF

J050

1-3

VR

0505

20V

J055

2-8

J055

2-10

J055

2-9

J055

2-11

J040

1-10

J055

1-40

CS

X

16_8

MH

Z_C

NT

LR_1

R05

29

C04

95

47K

470p

F

J055

1-41

J040

1-4

J040

1-7

10R

0592

R04

0122

0

J055

1-12

16_8

MH

Z

J045

1-9

J055

1-1

VR

0503

J050

1-7

20V

J055

1-21

RE

SE

T_C

NT

LR_1

1

J045

1-6

J050

1-18

C04

8547

0pF

R04

08

C04

77 2

100

J040

1-9

470p

F

470p

FC

0447

J055

1-22

3J0

551-

26

J050

1-13

TP

0530

DA

TA

_CN

TLR

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J055

2-17

J055

2-16

J040

1-8

J050

1-6

MO

SB

IAS

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NT

LR_1

10R

0467

C04

41

J050

1-1

4

J055

1-15

C04

93

J040

1-11

470p

F

J045

1-5

470p

FC

0431

VR

0501

20V

J055

1-14

J055

1-4

J050

1-12

J055

1-25

J050

1-2

470p

FC

0515

J045

1-13

J055

2-12

J055

2-14

J055

2-13

J055

2-15

R05

3822

0

MO

SB

IAS

_2

J050

1-20

R05

30

J040

1-12

J045

1-2

0

C04

88

J055

1-23

PA

SU

PV

LTG

470p

F

C05

13

9V3_

CN

TLR

_1

470p

F

89

TP

0497

470p

F

J055

2-18

J055

1-28

CN

TLV

LTG

J055

2-19

C04

7182

pF

5V

J055

1-10

J055

1-19

1KR

0535

470p

FC

0511

470p

FC

0512

J055

1-42

CLK

J050

1-11

J055

1-16

J055

1-2

J055

1-30

J055

1-35

390n

HL0

481

470p

F

NO

ISE

_BLN

KR

C05

08

C04

4847

0pF

LOC

K

J055

2-6

CS

X47

0pF

C04

82

J055

2-7

VR

0509

33V

C04

9047

0pF

C04

2747

0pF

J055

1-36

J050

1-9

470p

F

J045

1-17

C05

18

10

C05

7547

0pF

CS

X_C

NT

LR_2

470p

FC

0470

27K

R05

41

MO

SB

IAS

_3

J055

1-37

C04

9447

0pF

47K

0.47

uFC

0541

J055

1-8

J050

1-14

MO

DIN

PA

_PW

R_S

ET

_1_C

NT

LR_1

0R

0441

J050

1-4

9

J055

1-6

.01u

FC

0516

J050

1-17

MO

DIN

_CN

TLR

_1

C05

1782

pF

C04

8647

0pF

DA

TA

C04

9947

0pF

J055

1-29

C05

42

C04

2347

0pF

47uF

PA

_PW

R_S

ET

R05

330

J045

1-4

24K

R05

91

CN

TLV

LTG

_CN

TLR

_1J0

551-

17

470p

FC

0449

J055

1-11

J040

1-3

EX

P_B

D_R

EQ

5VD

SP

KR

-S

PK

R+

ON

_OF

F_C

ON

TR

OL

SP

KR

-

GP

6_IN

_AC

C10

FLA

T_T

X_R

TN

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

FLA

T_T

X_R

TN

SP

I_D

AT

A

EX

T_M

ICG

P1_

IN_A

CC

3G

P2_

OU

T_A

CC

4

GP

5_IN

_AC

C9

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

SP

KR

+

GP

3_IN

_AC

C6

GP

4_IN

_OU

T_A

CC

8

EX

P2_

CS

EX

P1_

CS

GP

4_IN

_OU

T_A

CC

8O

PT

_CS

RD

YO

PT

_PT

T

EX

P2_

CS

CH

_AC

T

GP

1_IN

_AC

C3

SP

I_D

AT

AS

PI_

MIS

OS

PI_

CLK

9V3

SP

I_M

ISO

DIS

CA

UD

IO

MO

DIN

CH

_AC

T

5VD

9V3

5VD

SP

I_M

ISO

RE

SE

T

FLT

_A+

DIS

CA

UD

IO

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

SE

XP

_BD

_RE

QG

P1_

IN_A

CC

3

SP

I_C

LK

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

INT

_MIC

INT

_MIC

INT

_MIC

SP

KR

+S

PK

R+

DIS

CA

UD

IOD

ISC

AU

DIO

HA

ND

SE

T_A

UD

IOH

AN

DS

ET

_AU

DIO

HA

ND

SE

T_A

UD

IO

RS

SI

RS

SI

BO

OT

_CN

TR

L

5VD

IN_5

V_R

F_R

EG

BU

S+

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

INT

_SW

B+

5VD

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

S

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

GP

1_IN

_AC

C3

CH

_AC

TC

H_A

CT

CH

_AC

TD

ISC

AU

DIO

FLT

_A+

SC

I_T

X

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

EM

ER

GE

NC

Y_C

ON

TR

OL

FLT

_A+

RS

SI

EX

T_S

WB

+

RD

YR

DY

RD

Y5V

_RF

NO

ISE

_BLN

KR

MO

SB

IAS

_2

PA

_PW

R_S

ET

EX

P1_

CS

9V3

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

4_IN

_OU

T_A

CC

8G

P4_

IN_O

UT

_AC

C8

DIS

CA

UD

IO

SP

I(0:

10)

MO

SB

IAS

_3

VS

_MIC

VS

_MIC

FLA

T_T

X_R

TN

FLT

_A+

BU

S+

BU

S+

RE

SE

TR

ES

ET

ON

_OF

F_C

ON

TR

OL

ON

_OF

F_C

ON

TR

OL

16_8

MH

Z

5VD

5VD

FLT

_A+

FLT

_A+

SP

I_D

AT

A

SP

I_C

LK

SP

I_M

ISO

VS

_CS

OP

T_C

SR

ES

ET

EX

T_M

ICE

XT

_MIC

SP

KR

-S

PK

R-

RE

SE

T

PA

SU

PV

LTG

BU

S+

TE

MP

SE

NS

E

CN

TLV

LTG

RS

SI

LOC

K

OP

T_C

S

SP

I_D

AT

A

TX

_AU

D_R

TN

VS

_CS

VS

_MIC

SP

I_C

LK

FLA

T_R

X_S

ND

RX

_AU

D_R

TN

UR

X_S

ND

TX

_AU

D_S

ND

VS

_IN

T

5VD

VS

_AU

DS

EL

VS

_GA

INS

EL

SP

I_M

ISO

VS

_RA

C

IGN

ITIO

N_C

ON

TR

OL

FLT

_A+

F04

013A

ZW

G01

3056

3-A

Co

ntr

olle

r T

7 o

nly

Sch

emat

ic D

iag

ram

- I/

O

3-16

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

470p

FC

0560

NU

R05

42

NU

470p

FC

0576

C04

4247

0pF

NU

C05

5947

0pF

NU

J045

1-14

J055

1-3

NU

C05

58

NU

470p

F

J040

1-2 N

U

390n

H

NU

L048

2

NU

C05

540.

1uF

NU

INT

ER

NA

L O

PT

ION

BO

AR

D

39 38

9

4

VS

_CS

NC

GR

OU

ND

GR

OU

ND

FA

ST

_SQ

DIS

CA

UD

IO

4D

B7

FLA

T_T

X_A

UD

IO

DIG

_IN

_OU

T_4

DA

TA

EX

P1_

CS

11

DB

2

DIG

_IN

1

3

EX

P1_

CS

5

9V3

5VD

EX

T_B

D_P

TT

EX

T_M

IC_A

UD

IO

EX

P_B

D_P

TT

DA

TA

36 21

NC

BO

OT

_CN

TR

L

Rx_

Aud

_Snd

ON

VS

_IN

T

VS

_RA

C

16

DB

3

23 6

1

RS

T*

7 8

14

INT

_EX

T_V

dd

GR

OU

ND

DB

111 717 12

18

RS

SI

BU

S+

J055

2

SP

I_M

ISO

RE

SE

T

FLT

_A+

26

FLA

T_T

X_R

TN

6

CS

X29

12-P

IN C

ON

NE

CT

OR

13

CLK

MIS

O

PC

B

16

20

SC

I_T

X

INT

_MIC

DIG

_IN

_3

Tx_

Aud

_Snd

VS

_AU

DS

EL

17

GR

OU

ND

SrD

_Rtn

5

DIG

_IN

_5 W

ITH

WA

KE

UP

(E

ME

RG

EN

CY

)

13

37

DIG

_IN

_OU

T_7 2

GM

300

SP

EA

KE

R-

CLK

DIS

CA

UD

IOC

H_A

CT

NC

NC

BU

S+

6

NC

DB

6

AC

CE

SS

OR

Y

7

4

19

9

R/W

*

Opt

_Bd_

En

NC

1310

33

NC

7

9

A0

EX

T_B

D_R

EQ

EX

T_B

D_C

SG

P4_

IN_O

UT

SP

I_C

LKS

PI_

MO

SI

DA

TA

VS

_GA

INS

EL

Gnd

8

EX

P2_

CS

BU

S+

EX

T_B

D_P

TT

GN

D5V

D

EX

P_B

D_P

TT

GN

D

RD

YO

PT

_PT

T

GN

D

DB

4

CLK

SP

EA

KE

R+

14

3

2

8

NC

10 11

Key

_Row

Key

_Int

rp

DIG

_IN

_OU

T_4

9V3

VS

_MIC

5VD

DIG

_OU

T2

(EX

TE

RN

AL_

ALA

RM

)

NC

HA

NS

ET

_AU

DIO

30

13

J050

1

J045

1

DIG

_IN

_6 W

ITH

WA

KE

UP

(IG

NIT

ION

)F

LAT

/FIL

TE

RE

D_R

X_A

UD

IO

19

9

VS

_CS

SW

B+

20

11

Fla

t_T

x_R

tn

NC

1 2

SrD

_Snd

EX

T_B

D_P

TT

27

OP

T_C

S22 18

40-P

IN C

ON

NE

CT

OR

DB

5

12

SC

K_S

nd

35

NC

NC

7 8

LED

_EN

ON

_OF

F_C

ON

TR

OL

20-P

IN C

ON

NE

CT

OR

1817

20

NC

15 1416

DIG

_IN

_6 W

ITH

WA

KE

UP

Tx_

Aud

_Rtn

34

18

Vdd

d

2532 31

SP

EA

KE

R+

1

WA

RIS

TO

/FR

OM

RF

7

24

CS

*

3

1

NC

NC

3 5

15

CLK

9

J055

1

28

FLT

_A+

6

SP

EA

KE

R-

DIG

_IN

_OU

T_8

16

3

OF

F_B

AT

T_D

AT

A_O

UT

3 4

EX

P_B

D_R

EQ

EX

T_B

D_P

TT

EX

T_B

D_P

TT

19

Det

_Aud

_Snd

12

Rx_

Aud

_Rtn

NC

1

MIS

O

2

5 6 10 11 12

EX

P2_

CS

8

DB

0

DA

TA

11

CO

NT

RO

L H

EA

D

NC

10

OP

T_C

S

EX

PA

NS

ION

BO

AR

D

10

PT

T

Rdy

/Req

2

GR

OU

ND

1012

14

RE

AR

VIE

W

BU

S+

4 12

18-P

IN C

ON

NE

CT

OR

NC

GN

D

1 2 11 12 13

17

15

6

40

18-P

IN C

ON

NE

CT

OR

RS

232

INT

ER

FA

CE

BO

AR

D

Key

_Col

TO

/FR

OM

RF

8

5

6 7 8 9 10

5

15 16 17 184

1 2 3 9

1413 14 15 16 17 18

J040

1

5

4

15

GN

D

BU

S+

0R

0482

0R

0481

J050

1-8

470p

FC

0443

100K

R04

68

J055

2-20

J055

2-2

J055

2-5

J055

2-4

R05

39

4.7K

J055

1-39

J055

1-33

TP

0492

J055

1-34

82pF

C04

28

DA

TA

_CN

TLR

_2

J045

1-7

J055

2-1

C04

22

J055

1-18

7

470p

F

100K

R05

11

CS

X_C

NT

LR_1

J050

1-15

J055

2-3

VR

0510

33V

8

TE

MP

SE

NS

E

9

J045

1-12

5V_C

NT

LR_1

470p

FC

0506

0.1u

F

J045

1-1

C05

92

470p

FC

0478

15K

R05

12

C04

8747

0pF

R05

10

10

4.7K

NO

ISE

_BLN

KR

_CN

TLR

_1

R04

09

5.6V

VR

0537

C04

7382

pF

8

470p

F

J045

1-18

C05

02

J040

1-5

J055

1-31

J045

1-15

220

R05

37

J055

1-38

RE

SE

T

14V

VR

0541

R04

0710

470p

F

J055

1-5

J050

1-19

C04

96

VR

0504

33V

J055

1-9

J055

1-27

470p

FC

0474

470p

F

J055

1-20

C04

29

.01u

FC

0501

470p

F

J045

1-16

C04

2647

0pF

C04

45

J050

1-10

J045

1-8

RS

SI_

CN

TLR

_147

0pF

C04

97

R05

31

560

DA

TA

C04

2182

pF

R05

25

470p

F

100K

MO

SB

IAS

_3_C

NT

LR_1

C04

92

CLK

_CN

TLR

_2

RS

SI

C04

4647

0pF

IN_5

V_R

F_R

EG

_CN

TLR

_1

J050

1-5

IN_5

V_R

F_R

EG

C04

72

DIS

CA

UD

IO

82pF

470p

FC

0484

100K

R05

4310

0K

R05

93

R04

421K

DIS

CA

UD

IO_C

NT

LR_1

LOC

K_C

NT

LR_1

C05

910.

1uF

TE

MP

SE

NS

E_C

NT

LR_1

C05

1047

0pF

J050

1-16

J045

1-3

J040

1-6

9V3

CLK

INT

_SW

BIN

T_S

WB

_CN

TLR

_1

J055

1-32

CLK

_CN

TLR

_1

J055

1-7

470p

FC

0476

470p

FC

0491

J055

1-13

470p

FC

0483

J045

1-11

J040

1-1

C05

05C

0504

470p

F47

0pF

470p

FC

0503

J055

1-24

C05

930.

1uF

470p

FC

0430

PA

SU

PV

LTG

_CN

TR

L_1

470p

F

J045

1-10

C05

09

0R04

12

C05

1447

0pF

J050

1-3

VR

0505

20V

J055

2-8

J055

2-10

J055

2-9

J055

2-11

J040

1-10

J055

1-40

CS

X

16_8

MH

Z_C

NT

LR_1

R05

29

C04

95

47K

470p

F

J055

1-41

J040

1-4

J040

1-7

10R

0592

R04

0122

0

J055

1-12

16_8

MH

Z

J045

1-9

J055

1-1

VR

0503

J050

1-7

20V

J055

1-21

RE

SE

T_C

NT

LR_1

1

J045

1-6

J050

1-18

C04

8547

0pF

R04

08

C04

77 2

100

J040

1-9

470p

F

470p

FC

0447

J055

1-22

3J0

551-

26

J050

1-13

TP

0530

DA

TA

_CN

TLR

_1

J055

2-17

J055

2-16

J040

1-8

J050

1-6

MO

SB

IAS

_2_C

NT

LR_1

10R

0467

C04

41

J050

1-1

4

J055

1-15

C04

93

J040

1-11

470p

F

J045

1-5

470p

FC

0431

VR

0501

20V

J055

1-14

J055

1-4

J050

1-12

J055

1-25

J050

1-2

470p

FC

0515

J045

1-13

J055

2-12

J055

2-14

J055

2-13

J055

2-15

R05

3822

0

MO

SB

IAS

_2

J050

1-20

R05

30

J040

1-12

J045

1-2

0

C04

88

J055

1-23

PA

SU

PV

LTG

470p

F

C05

13

9V3_

CN

TLR

_1

470p

F

89

TP

0497

470p

F

J055

2-18

J055

1-28

CN

TLV

LTG

J055

2-19

C04

7182

pF

5V

J055

1-10

J055

1-19

1KR

0535

470p

FC

0511

470p

FC

0512

J055

1-42

CLK

J050

1-11

J055

1-16

J055

1-2

J055

1-30

J055

1-35

390n

HL0

481

470p

F

NO

ISE

_BLN

KR

C05

08

C04

4847

0pF

LOC

K

J055

2-6

CS

X47

0pF

C04

82

J055

2-7

VR

0509

33V

C04

9047

0pF

C04

2747

0pF

J055

1-36

J050

1-9

470p

F

J045

1-17

C05

18

10

C05

7547

0pF

CS

X_C

NT

LR_2

470p

FC

0470

27K

R05

41

MO

SB

IAS

_3

J055

1-37

C04

9447

0pF

47K

0.47

uFC

0541

J055

1-8

J050

1-14

MO

DIN

PA

_PW

R_S

ET

_1_C

NT

LR_1

0R

0441

J050

1-4

9

J055

1-6

.01u

FC

0516

J050

1-17

MO

DIN

_CN

TLR

_1

C05

1782

pF

C04

8647

0pF

DA

TA

C04

9947

0pF

J055

1-29

C05

42

C04

2347

0pF

47uF

PA

_PW

R_S

ET

R05

330

J045

1-4

24K

R05

91

CN

TLV

LTG

_CN

TLR

_1J0

551-

17

470p

FC

0449

J055

1-11

J040

1-3

EX

P_B

D_R

EQ

5VD

SP

KR

-S

PK

R+

ON

_OF

F_C

ON

TR

OL

SP

KR

-

GP

6_IN

_AC

C10

FLA

T_T

X_R

TN

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

FLA

T_T

X_R

TN

SP

I_D

AT

A

EX

T_M

ICG

P1_

IN_A

CC

3G

P2_

OU

T_A

CC

4

GP

5_IN

_AC

C9

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

SP

KR

+

GP

3_IN

_AC

C6

GP

4_IN

_OU

T_A

CC

8

EX

P2_

CS

EX

P1_

CS

GP

4_IN

_OU

T_A

CC

8O

PT

_CS

RD

YO

PT

_PT

T

EX

P2_

CS

CH

_AC

T

GP

1_IN

_AC

C3

SP

I_D

AT

AS

PI_

MIS

OS

PI_

CLK

9V3

SP

I_M

ISO

DIS

CA

UD

IO

MO

DIN

CH

_AC

T

5VD

9V3

5VD

SP

I_M

ISO

RE

SE

T

FLT

_A+

DIS

CA

UD

IO

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

SE

XP

_BD

_RE

QG

P1_

IN_A

CC

3

SP

I_C

LK

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

INT

_MIC

INT

_MIC

INT

_MIC

SP

KR

+S

PK

R+

DIS

CA

UD

IOD

ISC

AU

DIO

HA

ND

SE

T_A

UD

IOH

AN

DS

ET

_AU

DIO

HA

ND

SE

T_A

UD

IO

RS

SI

RS

SI

BO

OT

_CN

TR

L

5VD

IN_5

V_R

F_R

EG

BU

S+

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

INT

_SW

B+

5VD

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

S

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

GP

1_IN

_AC

C3

CH

_AC

TC

H_A

CT

CH

_AC

TD

ISC

AU

DIO

FLT

_A+

SC

I_T

X

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

EM

ER

GE

NC

Y_C

ON

TR

OL

FLT

_A+

RS

SI

EX

T_S

WB

+

RD

YR

DY

RD

Y5V

_RF

NO

ISE

_BLN

KR

MO

SB

IAS

_2

PA

_PW

R_S

ET

EX

P1_

CS

9V3

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

4_IN

_OU

T_A

CC

8G

P4_

IN_O

UT

_AC

C8

DIS

CA

UD

IO

SP

I(0:

10)

MO

SB

IAS

_3

VS

_MIC

VS

_MIC

FLA

T_T

X_R

TN

FLT

_A+

BU

S+

BU

S+

RE

SE

TR

ES

ET

ON

_OF

F_C

ON

TR

OL

ON

_OF

F_C

ON

TR

OL

16_8

MH

Z

5VD

5VD

FLT

_A+

FLT

_A+

SP

I_D

AT

A

SP

I_C

LK

SP

I_M

ISO

VS

_CS

OP

T_C

SR

ES

ET

EX

T_M

ICE

XT

_MIC

SP

KR

-S

PK

R-

RE

SE

T

PA

SU

PV

LTG

BU

S+

TE

MP

SE

NS

E

CN

TLV

LTG

RS

SI

LOC

K

OP

T_C

S

SP

I_D

AT

A

TX

_AU

D_R

TN

VS

_CS

VS

_MIC

SP

I_C

LK

FLA

T_R

X_S

ND

RX

_AU

D_R

TN

UR

X_S

ND

TX

_AU

D_S

ND

VS

_IN

T

5VD

VS

_AU

DS

EL

VS

_GA

INS

EL

SP

I_M

ISO

VS

_RA

C

IGN

ITIO

N_C

ON

TR

OL

FLT

_A+

ZW

G01

3058

6-O

F04

013A F

use

P/N

6580

542Z

01

100

R05

56

100

R05

56

Co

ntr

olle

r T

9 o

nly

Sch

emat

ic D

iag

ram

- I

/O

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

3-17

4

0

18

100p

FC

0104

NU

C01

0210

0pF

NU

12

0

NU

4.7K

R01

71

NU

R01

1010

K

NU

18

NU

0.1u

F

100p

F

NU

NU

R01

024.

7K

NU

R01

82

NU

816

R01

06 0 U

sed

inpr

ime

only

NU

GP

3_IN

GP

8_IN

PE

6

VOX

LSIO

GP

7_IN

HC

138_

A0

RE

F_C

S

HC

138_

A2

GP

1_IN

GP

8_O

UT

SQ_DET

HC

138_

A1

FLA

SH

RO

M

SYN

HC

138_

A2

GP

2_O

UT

LSIO

MIC

RO

PR

OC

ES

SO

R

DATA

MISO

F1200

GP

4_IN

EE

PR

OM

DATAEE_CS

VS

_CS

EX

P1_

CS

GP

1_IN

CLKCSX

GP

5_IN

GP

4_O

UT

GP

7_O

UT

GP

7_IN

CLK

GP

5_IN

32kx

8bit

OP

T_C

S

LVZ

IF_C

S

16K

x8bi

t

GP

4_O

UT

GP

7_O

UT

(EX

T_B

D_P

TT

& D

AT

A_P

TT

)

EE

_CS

HC

138_

A0

GP

3_IN

GP

8_IN

512k

x8bi

tRA

M

GP

6_IN

GP

6_IN

MISO

EX

P2_

CS

GP

4_O

UT

GP

7_O

UT

HSIO

GP

4_IN

ON

_OF

F_S

EN

SE

GP

8_O

UT

CHACT

HC

138_

A1

HSIO

10K

R01

72

6

2

10K

R01

75

7

R01

11

10K

R01

15

101

0

C01

01

7

9

100p

F

0

1000

pFC

0107

R01

1410

K

R01

0410

K

10K

R01

70

4

10

5

11

0

47K

R01

79

R01

16

0.1u

FC

0141

7

7

R01

5224

K

R01

3233

0K

9Y

67

Y7

12

3

8G

ND16

VC

C15

Y0

14Y

113

Y2

12Y

311

Y4

10Y

5

MC

74H

C13

8A

U01

411

A0

2A

13

A2

6E

N_C

S1

4E

N_C

S2

5E

N_C

S3

5

12

TP

0102

6

6

10

2

6

R01

854.

7K

IO4

15IO

516

IO6

17IO

718

IO8

19

VC

C

28

8

A9

24

EN

_CS

20

EN

_OE

22

EN

_WE

27

14GN

D

IO1

11IO

212

IO3

13

A14

1

A2

8A

37

A4

6 5A

5A

64

A7

3A

825

A0

10A

19 21

A10

A11

23A

122

A13

26

11

6

U01

2263

A21

8

66

9

Q01

81

VSSL 40VSSR 87

93 XFC

XIR

Q48

XTAL91

RE

SE

T94

VDD12

VDDL39VDDR88

VDDSYN92

VRH69VRL68

VSS 13

PJ0

_CS

GP

371

PJ1

_CS

GP

472

PJ2

73P

J374

PJ4

75P

J576

PJ6

77P

J778

56PI1 55PI2 54PI3 53PI4 52PI5 51PI6 50PI7 49

PH

0_P

W1

47P

H1_

PW

246

PH

2_P

W3

45P

H3_

PW

444

PH

4_C

SIO

43P

H5_

CS

GP

142

PH

6_C

SG

P2

41P

H7_

CS

PR

OG

38

PI0

PG

0_X

A13

6

PG

1_X

A14

16P

G2_

XA

1520

PG

3_X

A16

19P

G4_

XA

1717

PG

5_X

A18

18P

G6_

AS

5

PG

7_R

_W4

PF1_ADDR1 28PF2_ADDR2 27PF3_ADDR3 26PF4_ADDR4 25PF5_ADDR5 24PF6_ADDR6 23PF7_ADDR7 22

PFO_ADDR0 29

67P

E0_

AN

066

PE

1_A

N1

65P

E2_

AN

264

PE

3_A

N3

63P

E4_

AN

462

PE

5_A

N5

61P

E6_

AN

660

PE

7_A

N7

PC

7_D

AT

A7

37

PD0_RXD97PD1_TXD98

PD2_MISO99PD3_MOSI100PD4_SCK1

PD5_SS23 PD6_LVIN

PBO_ADDR8 14

PC

0_D

AT

A0

30P

C1_

DA

TA

131

PC

2_D

AT

A2

32P

C3_

DA

TA

333

PC

4_D

AT

A4

34P

C5_

DA

TA

535

PC

6_D

AT

A6

36

PA7_PA1_OC186

PB1_ADDR9 10PB2_ADDR10 11PB3_ADDR11 9PB4_ADDR12 21PB5_ADDR13 15PB6_ADDR14 8PB7_ADDR15 7

MO

DB

_VS

TB

Y57

PA0_IC379PA1_IC280PA2_IC181

PA3_IC4_OC5_OC182PA4_OC4_OC183PA5_OC3_OC184PA6_OC2_OC185

AVDD59

AVSS 70

EC

LK89

EXTAL90

IRQ

96

95 LVOUT

MO

DA

_LIR

58

MC

68H

C11

FL0

U01

01

47K

R01

84

10K

R01

74

22pF

C01

32

0

Q01

85

7H

OLD

6S

CK

5S

I

2S

O

8 VC

C

4VS

S

3W

P X25

128-

2.7

U01

111C

S

.01u

FC

0151

1 13

Q01

73

C01

0610

0pF

D01

51

R01

73

122

3

4.7K

1

8

8

4

6

1

1 17

3

2.2K

R01

08

10

1

4

5

7

TP

0151

C01

210.

1uF

0.1u

FC

0122

TP

0103

8

1103

2

23

11

4.7K

1

11

12

3

1

R01

83

10K

R01

13

R01

5124

K

0

3

0

13

4

8

D01

79

2

6

17 9

10K

R01

01

5

7TP

0101

3

Q01

10

47K

R01

07

7

4.7K

R01

77

99

100K

Use

d in

stan

dard

on

ly

R01

05

4

2

7

10

100p

FC

0105

4

D01

01

3.9K

R01

17

5

1413

16

5

C01

23

7

2

5

C01

12

Q01

51

28IO

629

IO7

VC

C

8

2

0

3

7E

N_W

E

GN

D 24

IO0

21 22IO

123

IO2

25IO

326

IO4

27IO

516

A4

A5

15A

614 13

A7

3A

82

A9

30E

N_C

E32

EN

_OE

A13

4 5A

14A

1511 10

A16

6A

179

A18

18A

217

A3

AT

49F

040

U01

21

20A

019

A1

31A

101

A11

12A

12

4

5

3

1

13

6

13

2

NC

1

3

OU

T4

IN1

9

0

6

38.4

0KH

z

Y01

31X

TA

L NC

R01

12

0

47K

4.7K

R01

81

4

3

R01

78

5

47K

10M

EG

R01

31

100p

FC

0111

100p

FC

0103

22pF

C01

31

15

9

7

VR

0151

5.6V

14

TP

0104

Q01

83

1514

4

5

0

2

Q01

71

100K

R01

21

Q01

77

10

47K

R01

86

R01

76

30K

R_W

RA

M_C

S

BU

S+

CN

TLV

LTG

5VD

SC

I_T

X

GP

1_IN

_AC

C3

GP

6_IN

_AC

C10

GP

2_O

UT

_AC

C4

R_W

FLA

SH

_CE

FLA

SH

_OE

5VD

IRQ

IRQ

AD

DR

_BU

S(0

:18)

DA

TA

_BU

S(0

:7)

0

FR

OM

_U01

01_4

7VS

_RA

C

5VD

VS

_IN

T

GP

4_IN

_OU

T_A

CC

8

5VD

BO

OT

_CN

TR

L

GP

3_IN

_AC

C6

5VD

ON

_OF

F_C

ON

TR

OL

5VD

5VD

5VD

RE

SE

T

RE

SE

T

5VD

OP

T_P

TT

5VD

GP

5_IN

_AC

C9

5VD

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

GP

IO(0

:13)

GP

IO(0

:13)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

FR

OM

_U01

01_4

7F

RO

M_U

0101

_46

FR

OM

_U01

01_4

6

5VD

5VD

FLT

_A+

TE

MP

SE

NS

E

RA

M_C

S

5VD

VS

_GA

INS

EL

EX

T_B

D_R

EQ

RS

SI

5VD

RX

_AD

AP

T

5VD

5VD

5VD

FLT

_A+

FLT

_A+

FLA

SH

_OE

NC_XTAL

EC

LK

LOC

K

RD

Y

ON

_OF

F_C

ON

TR

OL

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

5VD

5VD

5VD

5VD

FLA

SH

_CE

R_W

VS

TB

Y

5VD

BA

TT

ER

Y_V

OLT

AG

E

5VD

C (

0VD

C d

uri

ng

On

/Off

pre

ssed

an

d d

uri

ng

hea

d r

equ

est)

5VD

C (

0VD

C d

uri

ng

bo

ot

mo

de)

ZW

G01

3052

6-A

Co

ntr

olle

r T

7 o

nly

Sch

emat

ic D

iag

ram

- M

icro

pro

cess

or

3-18

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

4

0

18

100p

FC

0104

NU

C01

0210

0pF

NU

12

0

NU

4.7K

R01

71

NU

R01

1010

K

NU

18

NU

0.1u

F

100p

F

NU

NU

R01

024.

7K

NU

R01

82

NU

816

R01

06 0 U

sed

inpr

ime

only

NU

GP

3_IN

GP

8_IN

PE

6

VOX

LSIOG

P7_

IN

HC

138_

A0

RE

F_C

S

HC

138_

A2

GP

1_IN

GP

8_O

UT

SQ_DET

HC

138_

A1

FLA

SH

RO

M

SYN

HC

138_

A2

GP

2_O

UT

LSIO

MIC

RO

PR

OC

ES

SO

R

DATA

MISO

F1200

GP

4_IN

EE

PR

OM

DATAEE_CS

VS

_CS

EX

P1_

CS

GP

1_IN

CLKCSX

GP

5_IN

GP

4_O

UT

GP

7_O

UT

GP

7_IN

CLK

GP

5_IN

32kx

8bit

OP

T_C

S

LVZ

IF_C

S

16K

x8bi

t

GP

4_O

UT

GP

7_O

UT

(EX

T_B

D_P

TT

& D

AT

A_P

TT

)

EE

_CS

HC

138_

A0

GP

3_IN

GP

8_IN

512k

x8bi

tRA

M

GP

6_IN

GP

6_IN

MISO

EX

P2_

CS

GP

4_O

UT

GP

7_O

UT

HSIO

GP

4_IN

ON

_OF

F_S

EN

SE

GP

8_O

UT

CHACT

HC

138_

A1

HSIO

10K

R01

72

6

2

10K

R01

75

7

R01

11

10K

R01

15

101

0C

0101

7

9

100p

F

0

1000

pFC

0107

R01

1410

K

R01

0410

K

10K

R01

70

4

10

5

11

0

47K

R01

79

R01

16

0.1u

FC

0141

7

7

R01

5224

K

R01

3233

0K

9Y

67

Y7

12

3

8G

ND16

VC

C15

Y0

14Y

113

Y2

12Y

311

Y4

10Y

5

MC

74H

C13

8A

U01

411

A0

2A

13

A2

6E

N_C

S1

4E

N_C

S2

5E

N_C

S3

5

12

TP

0102

6

6

10

2

6

R01

854.

7K

IO4

15IO

516

IO6

17IO

718

IO8

19

VC

C

28

8

A9

24

EN

_CS

20

EN

_OE

22

EN

_WE

27

14GN

D

IO1

11IO

212

IO3

13

A14

1

A2

8A

37

A4

6 5A

5A

64

A7

3A

825

A0

10A

19 21

A10

A11

23A

122

A13

26

11

6

U01

2263

A21

8

66

9

Q01

81

VSSL 40VSSR 87

93 XFC

XIR

Q48

XTAL91

RE

SE

T94

VDD12

VDDL39VDDR88

VDDSYN92

VRH69VRL68

VSS 13

PJ0

_CS

GP

371

PJ1

_CS

GP

472

PJ2

73

PJ3

74

PJ4

75

PJ5

76

PJ6

77

PJ7

78

56PI1 55PI2 54PI3 53PI4 52PI5 51PI6 50PI7 49

PH

0_P

W1

47P

H1_

PW

246

PH

2_P

W3

45P

H3_

PW

444

PH

4_C

SIO

43P

H5_

CS

GP

142

PH

6_C

SG

P2

41P

H7_

CS

PR

OG

38

PI0

PG

0_X

A13

6

PG

1_X

A14

16

PG

2_X

A15

20

PG

3_X

A16

19

PG

4_X

A17

17P

G5_

XA

1818

PG

6_A

S5

PG

7_R

_W4

PF1_ADDR1 28PF2_ADDR2 27PF3_ADDR3 26PF4_ADDR4 25PF5_ADDR5 24PF6_ADDR6 23PF7_ADDR7 22

PFO_ADDR0 29

67P

E0_

AN

066

PE

1_A

N1

65P

E2_

AN

264

PE

3_A

N3

63P

E4_

AN

462

PE

5_A

N5

61P

E6_

AN

660

PE

7_A

N7

PC

7_D

AT

A7

37

PD0_RXD97PD1_TXD98

PD2_MISO99PD3_MOSI100PD4_SCK1 PD5_SS2

3 PD6_LVIN

PBO_ADDR8 14

PC

0_D

AT

A0

30P

C1_

DA

TA

131

PC

2_D

AT

A2

32P

C3_

DA

TA

333

PC

4_D

AT

A4

34P

C5_

DA

TA

535

PC

6_D

AT

A6

36

PA7_PA1_OC186

PB1_ADDR9 10PB2_ADDR10 11PB3_ADDR11 9PB4_ADDR12 21PB5_ADDR13 15PB6_ADDR14 8PB7_ADDR15 7

MO

DB

_VS

TB

Y57


PA3_IC4_OC5_OC182PA4_OC4_OC183PA5_OC3_OC184PA6_OC2_OC185

AVDD59

AVSS 70

EC

LK89

EXTAL90

IRQ

96

95 LVOUT

MO

DA

_LIR

58

MC

68H

C11

FL0

U01

01

47K

R01

84

10K

R01

74

22pF

C01

32

0

Q01

85

7H

OLD

6S

CK

5S

I

2S

O

8 VC

C

4VS

S

3W

P X25

128-

2.7

U01

111C

S

.01u

FC

0151

1 13

Q01

73

C01

0610

0pF

D01

51

R01

73

12

2

3

4.7K

1

8

8

4

6

1

1 17

3

2.2K

R01

08

10

1

4

5

7

TP

0151

C01

210.

1uF

0.1u

FC

0122

TP

0103

8

1103

2

23

11

4.7K

1

11

12

3

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3E20

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1B69

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1374

1F49

10nF

50V

C06

6321

1374

3E20

100n

F 1

6V

C06

7121

1374

3E20

100n

F 1

6V

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

C06

8121

1374

3E20

100n

F 1

6V

D01

0148

8023

6E05

CH

IP S

CH

OT

TK

Y

D01

5148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D01

7948

1383

3C02

DU

AL

SO

T M

MB

D61

00

D03

01U

sed

in48

0224

5J47

GM

398

only

SC

HO

TT

KY

BA

RR

IER

(R

B47

1E)

D06

2148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

5148

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

6048

1383

3C02

DU

AL

SO

T M

MB

D61

00

D06

6148

1383

3C02

DU

AL

SO

T M

MB

D61

00

E02

7124

8465

7R01

Fer

rite

Bea

d

E02

7224

8465

7R01

Fer

rite

Bea

d

E06

3124

8465

7R01

Fer

rite

Bea

d

F04

0165

8054

2Z01

3A 2

4V

J040

109

0263

6Y02

CO

NN

FLE

X 1

2 P

IN

J045

109

0263

6Y01

CO

NN

FLE

X S

IDE

EN

TR

Y

J050

109

8610

5B01

CO

NN

SM

D 2

0 P

IN

J055

109

0550

5Y04

CO

NN

ZIF

HO

RIZ

ON

TAL

J055

209

0550

5Y03

CO

NN

ZIF

18P

IN

J060

109

8616

5B01

DC

PW

R C

ON

N

Q01

1048

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

5148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

7148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

7348

8005

2M01

NP

N D

RLN

GT

N M

XTA

Q01

7748

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8348

8004

8M01

NP

N D

IG 4

7k/4

7k

Q01

8548

8004

8M01

NP

N D

IG 4

7k/4

7k

Q02

7148

1382

4A10

NP

N 4

0V .2

A

Q06

4148

8004

8M01

NP

N D

IG 4

7k/4

7k

Q06

6148

0592

1T02

DU

AL

RO

HM

FM

C2

RH

Q06

6248

1382

4A10

NP

N 4

0V .2

A B

=50

-150

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

Q06

6348

8004

8M01

NP

N D

IG 4

7k/4

7k

Q06

8148

8005

2M01

NP

N D

RLN

GT

N M

XTA

R01

0106

6205

7A73

10k

1/16

W 5

%

R01

0206

6205

7A65

4k7

1/16

W 5

%

R01

0406

6205

7A73

10k

1/16

W 5

%

R01

05U

sed

in06

6205

7A97

GM

338

only

100k

1/1

6W

R01

06U

sed

in06

6205

7B47

GM

398

only

0 1/

16W

R01

0806

6205

7A57

2k2

1/16

W 5

%

R01

1106

6205

7B47

0 1

/16W

030

6

R01

1306

6205

7A73

10k

1/16

W 5

%

R01

1406

6205

7A73

10k

1/16

W 5

%

R01

1506

6205

7A73

10k

1/16

W 5

%

R01

1706

6205

7A63

3k9

1/16

W 5

%

R01

2106

6205

7A97

100k

1/1

6W

R01

3106

6205

7B46

10.0

ME

G O

HM

S 5

%

R01

3206

6205

7B10

330k

1/1

6W 5

%

R01

5106

6205

7A82

24K

1/1

6W 5

%

R01

5206

6205

7A82

24K

1/1

6W 5

%

R01

7006

6205

7A73

10k

1/16

W 5

%

R01

7106

6205

7A65

4k7

1/16

W 5

%

R01

7206

6205

7A73

10k

1/16

W 5

%

R01

7306

6205

7A65

4k7

1/16

W 5

%

R01

7406

6205

7A73

10k

1/16

W 5

%

R01

7506

6205

7A73

10k

1/16

W 5

%

R01

7606

6205

7A84

30k

1/16

W 5

%

R01

7706

6205

7A65

4k7

1/16

W 5

%

R01

7806

6205

7A89

47k

1/16

W 5

%

R01

7906

6205

7A89

47k

1/16

W 5

%

R01

8106

6205

7A65

4k7

1/16

W 5

%

R01

8206

6205

7A89

47k

1/16

W 5

%

R01

8306

6205

7A65

4k7

1/16

W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R01

8406

6205

7A89

47k

1/16

W 5

%

R01

8506

6205

7A65

4k7

1/16

W 5

%

R01

8606

6205

7A89

47k

1/16

W 5

%

R02

0106

6205

7A25

100

1/16

W 5

%

R02

0206

6205

7A43

560

1/16

W 5

%

R02

0306

6205

7A25

100

1/16

W 5

%

R02

0406

6205

7A43

560

1/16

W 5

%

R02

0506

6205

7A73

10k

1/16

W 5

%

R02

0606

6205

7A73

10k

1/16

W 5

%

R02

0706

6205

7A57

2k2

1/16

W 5

%

R02

0806

6205

7A57

2k2

1/16

W 5

%

R02

1106

6007

6E70

FIL

M 7

500

R02

1206

6007

6E70

FIL

M 7

500

R02

2106

6205

7A82

24K

1/1

6W 5

%

R02

2206

6205

7A82

24K

1/1

6W 5

%

R02

2306

6205

7A84

30k

1/16

W 5

%

R02

2406

6205

7A71

8k2

1/16

W 5

%

R02

2806

6205

7B47

0 1/

16W

R02

2906

6205

7A01

10 1

/16W

5%

R02

4106

6205

7A89

47k

1/16

W 5

%

R02

4206

6205

7B47

0 1/

16W

R02

5106

6205

7A89

47k

1/16

W 5

%

R02

5206

6205

7A91

56K

1/1

6W 5

%

R02

5306

6205

7A97

100k

1/1

6W

R02

5406

6205

7A73

10k

1/16

W 5

%(C

NT

RL

T7

only

)

R02

5506

6205

7A73

10k

1/16

W 5

%(C

NT

RL

T7

only

)

R02

5606

6205

7A97

100k

1/1

6W(C

NT

RL

T7

only

)

R02

5706

6205

7A57

2k2

1/16

W 5

%(C

NT

RL

T7

only

)

R02

6106

6205

7A73

10k

1/16

W 5

%

R02

6206

6205

7A97

100k

1/1

6W

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

3-22

Con

trol

ler

T7/

T9

Sch

emat

ic D

iagr

ams

* M

otor

ola

Dep

ot S

ervi

cing

onl

y

Ref

eren

ce d

esig

nato

rs w

ith a

n as

teris

k in

dica

te

com

pone

nts

whi

ch a

re n

ot fi

eldr

epla

ceab

le

beca

use

they

nee

d to

be

calib

rate

d w

ith

spec

ializ

ed fa

ctor

y eq

uipm

ent a

fter

inst

alla

tion.

R

adio

s in

whi

ch th

ese

part

s ha

ve b

een

repl

aced

in

the

field

will

be

off f

requ

ency

at t

empe

ratu

re

extr

emes

.

R02

6506

6205

7A82

24K

1/1

6W 5

%

R02

6706

6205

7A89

47k

1/16

W 5

%

R02

6806

6205

7A73

10k

1/16

W 5

%

R02

6906

6205

7A41

470

1/16

W 5

%

R02

7306

6205

7A82

24K

1/1

6W 5

%

R02

7506

6205

7A73

10k

1/16

W 5

%

R02

7606

6205

7A77

15k

1/16

W 5

%

R03

23U

sed

in06

6205

7A79

GM

398

only

18k

1/16

W 5

%

R03

24U

sed

in06

6205

7A79

GM

398

only

18k

1/16

W 5

%

R03

31U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

32U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

33U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W 5

%

R03

35U

sed

in06

6205

7B02

GM

398

only

150k

1/1

6W

R03

41U

sed

in06

6205

7A73

GM

398

only

10k

1/16

W

R03

42U

sed

in06

6205

7A55

GM

398

only

1k8

1/16

W

R03

43U

sed

in06

6205

7B47

GM

398

only

0 1/

16W

R03

44U

sed

in06

6205

7A91

GM

398

only

56K

1/1

6W

R03

45U

sed

in06

6205

7A66

GM

398

only

5k1

1/16

W

R03

46U

sed

in06

6205

7A89

GM

398

only

47k

1/16

W

R03

47U

sed

in06

6205

7A89

GM

398

only

47k

1/16

W

R04

0106

6205

7A33

220

1/16

W

R04

0706

6205

7M26

10 5

% 2

0X40

R04

0806

6205

7A25

100

1/16

W 5

%

R04

0906

6205

7M26

10 5

% 2

0X40

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R04

1206

6205

7B47

0 1

/16W

R04

4106

6205

7B47

0 1

/16W

R04

42U

sed

in06

6205

7A49

1k 1

/16W

5%

CN

TR

L T

7 on

ly

R04

6706

6205

7M26

10 5

% 2

0X40

R04

6806

6205

7M26

10 5

% 2

0X40

(C

NT

RL

T6)

R04

6806

6205

7A97

100k

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CN

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7)

R04

8106

6205

7B47

0 1

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R04

8206

6205

7B47

0 1

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R05

1006

6205

7A65

4k7

1/16

W 5

%

R05

1106

6205

7A97

100k

1/1

6W

R05

1206

6205

7A77

15k

1/16

W 5

%

R05

2506

6205

7A97

100k

1/1

6W

R05

2906

6205

7A89

47k

1/16

W 5

%

R05

3006

6205

7B47

0 1

/16W

R05

3106

6205

7A43

560

1/16

W 5

%

R05

3306

6205

7B47

0 1

/16W

R05

3506

6205

7A49

1k 1

/16W

5%

R05

3706

6205

7A33

220

1/16

W 5

%

R05

3806

6205

7A33

220

1/16

W 5

%

R05

3906

6205

7A65

4k7

1/16

W 5

%

R05

4106

6205

7A83

27k

1/16

W 5

%

R05

4306

6205

7A97

100k

1/1

6W(C

NT

RL

T7

only

)

R05

9106

6205

7A82

24K

1/1

6W 5

%

R05

9206

6205

7A01

10 1

/16W

5%

R05

9306

6205

7A97

100k

1/1

6W(C

NT

RL

T7

only

)

R06

1106

6205

7A91

56K

1/1

6W

R06

1206

6205

7A65

4k7

1/16

W

R06

2106

6205

7A82

24K

1/1

6W

R06

4106

6205

7A73

10k

1/16

W

R06

4206

6007

6E70

FIL

M 7

500

Cir

cuit

R

efM

oto

rola

P

art

No

Des

crip

tio

n

R06

4306

6007

6E51

FIL

M 1

200

R06

5106

6205

7A01

10 1

/16W

5%

R06

5206

6205

7A01

10 1

/16W

5%

R06

6106

6205

7A49

1k 1

/16W

5%

R06

6206

6205

7B02

150k

1/1

6W

R06

7106

6205

7A84

30k

1/16

W 5

%

R06

7206

6205

7A73

10k

1/16

W 5

%

R06

8106

6205

7A79

18k

1/16

W 5

%

R06

8206

6205

7A93

68k

1/16

W 5

%

U01

0151

0222

6J56

MIC

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PR

OC

ES

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R

MC

68H

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1FLO

* U

0111

5102

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EP

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M X

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8-2.

7 S

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5186

137B

0151

2KX

8 F

LAS

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OM

(A

T49

BV

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U01

2251

8596

3A21

32K

x 8

SR

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4151

1380

5A30

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HC

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3A53

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7151

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9X01

AU

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sed

in51

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2M01

GM

398

only

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PR

OM

AN

ALO

G

ISD

3312

0EI

U03

31U

sed

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8620

4B01

GM

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only

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FF

ER

/DR

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R

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U03

41U

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P

U03

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0575

0U28

GM

398

only

SN

GL

AN

ALO

G S

WIT

CH

S

MD

U03

51U

sed

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0246

3J40

GM

398

only

RE

GU

LAT

OR

, 3.3

V,

LP29

51C

M-3

.3

U06

1151

8330

8X01

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J V

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G L

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U06

4151

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8X01

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J V

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G L

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41

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263

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cuit

R

efM

oto

rola

P

art

No

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crip

tio

n

U06

5151

1381

6A07

RE

G 5

V P

OS

500

MA

M

C78

M05

U06

5251

1381

5A02

MC

3306

4

VR

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4813

830A

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.6V

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225

mW

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0501

4805

656W

09Z

EN

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QU

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M

MQ

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1

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4805

656W

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VR

0504

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0537

4813

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155.

6V 5

% 2

25m

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0601

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6V 5

% 2

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8011

3R19

CR

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art

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crip

tio

n

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trol

ler

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T9

Sch

emat

ic D

iagr

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3-23

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r T

9 P

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t

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rola

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art

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crip

tio

n

C01

0121

1374

0F51

100p

F

C01

0721

1374

1F25

1000

pF

C01

1221

1374

3E20

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C01

2121

1374

3E20

10uF

C01

2221

1374

3E20

10uF

C01

3121

1374

0F35

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C01

3221

1374

0F35

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C01

4121

1374

3E20

10uF

C01

5121

1374

1F49

10nF

C02

0123

1104

9A57

10uF

C02

0223

1104

9A57

10uF

C02

0421

1374

3E20

10uF

C02

1223

1104

9A57

10uF

C02

2121

1374

3E20

10uF

C02

2221

1374

3E20

10uF

C02

2321

1374

3E20

10uF

C02

2421

1374

0F51

100p

F

C02

2521

1374

3E20

10uF

C02

2621

1374

3E20

10uF

C02

2823

1104

9A56

4.7u

F

C02

3121

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3B29

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C02

3221

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3E20

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C02

3421

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3E20

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C02

3521

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3E07

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C02

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3E10

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4121

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3E20

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C02

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0F51

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C02

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C02

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1F49

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C02

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3E20

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C02

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3E20

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1F49

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1F49

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C02

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1F37

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C04

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R01

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1706

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7A63

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7A97

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7B46

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7B10

330K

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R01

5106

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7A82

24K

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R01

5206

6205

7A82

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R01

7006

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7A73

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7106

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7A65

4700

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7206

6205

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7406

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7A73

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R01

7506

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7A73

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R01

7606

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7A84

30K

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R01

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7A65

4700

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R01

7806

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7A89

47K

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R01

7906

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8106

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7A65

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8206

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7A89

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No

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7A43

560

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R02

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7A25

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R02

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7A57

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2106

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7A82

24K

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2306

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7A84

30K

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2406

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7A71

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7A91

56K

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7A97

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7A97

100K

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7A57

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6106

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7A73

10K

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6206

6205

7A97

100K

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R02

6506

6205

7A82

24K

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6706

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7A89

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No

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7606

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15K

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R03

2306

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7A79

18K

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R03

2406

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3106

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150K

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7A55

1800

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4306

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7B47

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7A91

56K

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4506

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7A66

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R03

4606

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7A89

47K

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7A49

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6806

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7A97

100K

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8106

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R05

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7A65

4700

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7A97

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P

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Con

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Dep

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Ref

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R

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at t

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R05

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3006

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7A43

560

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R05

3306

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R05

3506

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7A49

1000

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R05

3706

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7A33

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R05

3806

6205

7A33

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Ohm

R05

3906

6205

7A65

4700

Ohm

R05

4106

6205

7A83

27K

Ohm

R05

4306

6205

7A97

100K

Ohm

R05

5506

6205

7A25

100

Ohm

R05

5606

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7A25

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R05

9106

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7A82

24K

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R05

9206

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R05

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7A97

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R06

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7A91

56K

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R06

1206

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7A65

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R06

2106

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7A82

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R06

4106

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7A73

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150K

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R06

7106

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7A84

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R06

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7A73

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R06

8106

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7A79

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R06

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68K

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U01

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VHF (136-174MHz)

Service Information


i

Table of Contents

Section 1 Model Chart and Technical Specifications

1.0 GM328/GM338/GM398 Model Chart ...................................................................1-12.0 Technical Specifications ......................................................................................1-2


1.0 Introduction ..........................................................................................................2-12.0 VHF (136-174 MHz) Receiver..............................................................................2-1

2.1 Receiver Front-End ........................................................................................2-12.2 Front-End Band-Pass Filters & Pre-Amplifier .................................................2-22.3 First Mixer and High Intermediate Frequency (IF)..........................................2-22.4 Low Intermediate Frequency (IF) and Receiver Back End.............................2-3

3.0 VHF (136-174 MHz) Transmitter Power Amplifier (PA) 25 W..............................2-33.1 First Power Controlled Stage..........................................................................2-43.2 Power Controlled Driver Stage .......................................................................2-43.3 Final Stage .....................................................................................................2-43.4 Directional Coupler .........................................................................................2-53.5 Antenna Switch...............................................................................................2-53.6 Harmonic Filter ...............................................................................................2-53.7 Power Control.................................................................................................2-5

4.0 VHF (136-174 MHz) Frequency Synthesis ..........................................................2-64.1 Reference Oscillator .......................................................................................2-64.2 Fractional-N Synthesizer ................................................................................2-64.3 Voltage Controlled Oscillator (VCO)...............................................................2-74.4 Synthesizer Operation ....................................................................................2-8


1.0 Troubleshooting Flow Chart for Receiver ............................................................3-12.0 Troubleshooting Flow Chart for 25W Transmitter ................................................3-33.0 Troubleshooting Flow Chart for Synthesizer........................................................3-64.0 Troubleshooting Flow Chart for VCO...................................................................3-7

ii

Section 4 VHF PCBs/Schematics/Parts Lists

1.0 Allocation of Schematics and Circuit Boards .......................................................4-11.1 Controller Circuits...........................................................................................4-1

2.0 VHF 1-25W PCBs / Schematics / Parts Lists ......................................................4-3VHF (136-174 MHz) 1-25W 8486172B06 Top Side ..............................................4-3VHF (136-174 MHz) 1-25W 8486172B06 Bottom Side.........................................4-4VHF (136-174 MHz) Power Amplifier 1-25W..........................................................4-5VHF (136-174 MHz) FRACN..................................................................................4-6VHF (136-174 MHz) Voltage Controlled Oscillator.................................................4-7VHF (136-174 MHz) Receiver Front End ...............................................................4-8VHF (136-174 MHz) IF ...........................................................................................4-9VHF PCB 8486172B06 Parts List 1-25W.............................................................4-10VHF (136-174 MHz) 1-25W 8486172B07 Top Side ............................................4-13VHF (136-174 MHz) 1-25W 8486172B07 Bottom Side.......................................4-14VHF (136-174 MHz) IF .........................................................................................4-15VHF (136-174 MHz) FRACN................................................................................4-16VHF PCB 8486172B07 Parts List 1-25W.............................................................4-17

1-1

Section 1

MODEL CHART AND TECHNICAL SPECIFICATIONS

1.0 GM328/GM338/GM398 Model Chart

GM Series, VHF 136-174 MHzModel Description

AZM25KHC9AA1 GM328 136-174 MHz 1-25W

AZM25KHF9AA5 GM338 136-174 MHz 1-25W

AZM25KHN9AA8 GM398 136-174 MHz 1-25W

Item Description

X GCN6112_ GM328 Control Head Direct Mount



X X IMUD6010_ Tanapa WM 136-174 MHz 1-25W

X IMUD6023_ Tanapa WM 136-174 MHz 1-25W

X X X RAD4198_ BNC 136-144 MHz, 1/4 Wave Roof Mount

X X X RAD4199_ BNC 146-150.8 MHz, 1/4 Wave Roof Mount

X X X RAD4200_ BNC 150.8-162 MHz, 1/4 Wave Roof Mount

X X X RAD4201_ BNC 162-174 MHz, 1/4 Wave Roof Mount

X X X RAD4202_ BNC 146-172 MHz, 3dB Gain Roof Mount

X 6804113J74 GM328 User Guide



x = Indicates one of each is required.

1-2 Technical Specifications

2.0 Technical Specifications

Data is specified for +25°C unless otherwise stated.

General Specifications

Channel CapacityGM328GM338GM398

4128160

Power Supply 13.2Vdc (10.8 - 15.6Vdc)

Dimensions: H x W x D (mm) Depth excluding knobs GM32856mm x 176mm x 177mm(add 8mm for Volume Knob)

Dimensions: H x W x D (mm) Depth excluding knobs GM33859mm x 179mm x 186mm (1 - 25W)59mm x 179mm x 198mm (25 - 45W)(add 9mm for Volume Knob)


Weight GM328/GM338 1400 g

Weight GM398 1500 g

Sealing: Withstands rain testing per MIL STD 810 C/D /E and IP54

Shock and Vibration: Protection provided via impactresistant housing exceeding MIL STD 810-C/D /E

Dust, Salt & Fog Protection provided via environment resistant housing exceeding MIL STD 810 C/D /E

Technical Specifications 1-3

*Availability subject to the laws and regulations of individual countries.

Transmitter VHF

*Frequencies - Full Bandsplit VHF 136-174 MHz

Channel Spacing 12.5/20/25 kHz

Frequency Stability(-30°C to +60°C, +25° Ref.)

±2.5 ppm

Power 1-25W

Modulation Limiting±2.5 @ 12.5 kHz ±4.0 @ 20 kHz±5.0 @ 25 kHz

FM Hum & Noise-40 dB @ 12.5kHz

-45 dB @ 20/25kHz

Conducted/Radiated Emission (ETS)-36 dBm <1 GHz-30 dBm >1 GHz

Adjacent Channel Power-60 dB @ 12.5 kHz-70 dB @ 25 kHz

Audio Response (300 - 3000Hz) +1 to -3 dB

Audio Distortion @1000Hz, 60%Rated Maximum Deviation

<3% typical

Receiver VHF



Sensitivity (12 dB SINAD) 0.30 µV (0.22 µV typical)

Intermodulation (ETS)>65 dB

Base Mode: >70dB (1-25W model only)

Adjacent Channel Selectivity (ETS)65 dB @ 12.5 kHz 75 dB @ 20 kHz80 dB @ 25 kHz

Spurious Rejection (ETS)75 dB @ 12.5 kHz

80 dB @ 20/25 kHz

Rated Audio3W Internal

13W External

Audio Distortion @ Rated Audio <3% typical

Hum & Noise-40 dB @ 12.5 kHz

-45 dB @ 20/25 kHz

Audio Response (300 - 3000Hz @ 20/25kHz)(300 - 2550Hz @12.5kHz)

+1 to -3 dB

Conducted Spurious Emission (ETS)-57 dBm <1 GHz-47 dBm >1 GHz

2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the VHF circuits in the radio. For details of the theory of operation and troubleshooting for the the associated Controller circuits refer to the Controller Section of this manual.

2.0 VHF (136-174 MHz) Receiver

2.1 Receiver Front-End

The receiver is able to cover the VHF range from 136 to 174 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, high-IF, low-IF and receiver back-end. Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. High-side first injection is used.

Figure 2-1 VHF Receiver Block Diagram

Demodulator

1. Crystal Filter

MixerVaractor Tuned FilterRF AmpVaractor

Tuned Filter

Antenna

Control Voltagefrom PCIC First LO

from FGU

Recovered Audio

RSSI

IF

Second LO

2. Crystal Filter

455kHz Filter(25kHz)


455kHz Filter(12.5kHz)


Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp

Filter Bank Selectionfrom Synthesizer IC

Pin Diode Antenna SwitchRF Jack

Harmonic Filter

2-2 VHF (136-174 MHz) Receiver

There are two 2-pole 44.85 MHz crystal filters in the high-IF section and 2 pairs of 455 kHz ceramic filters in the low-IF section to provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25kHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.

2.2 Front-End Band-Pass Filters & Pre-Amplifier

The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuitry, before being applied to the receiver pre-selector filter (C3001, C3002, D3001 and associated components). The 2-pole pre-selector filter tuned by the dual varactor diode D3001 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECNTL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U3501) in the Transmitter section. A dual hot carrier diode (D3003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q3001) with collector-base feedback to stabilize gain, impedance, and intermodulation. Transistor Q3002 compares the voltage drop across resistor R3002 with a fixed base voltage from divider R3011, R3000 and R3012, and adjusts the base current of Q3001 as necessary to maintain its collector current constant at approximately 15-20 mA. Operating voltage is from the regulated 9.3V supply (9V3). During transmit, 9.1 volts (K9V1) turns off both transistors Q3002 and Q3001. This protects the RF pre-amplifier from excessive dissipation during transmit mode. A switchable 3dB pad (R3022, R3024, R3016 and R3018) controlled via Line FECNTL_2 and Q3021 stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The dual varactor diode D3004 is controlled by the same signal FECNTL_1, which controls the pre-selector filter.

2.3 First Mixer and High Intermediate Frequency (IF)

The signal coming from the front-end is converted to the high-IF frequency of 44.85 MHz using a cross over quad diode mixer (D3031). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using high side injection. The high-side injection signal (RXINJ) from the frequency synthesizer circuitry has a level of approximately 13 dBm and is injected via matching transformer T3002.

The mixer IF output signal (IF) from transformer T3001 pin 2 is fed to the first two pole crystal filter FL3101. The filter output in turn is matched to the following IF amplifier.

The IF amplifier Q3101 is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the voltage 5V. Its output impedance is matched to the second two pole crystal filter FL3102. The signal is further amplified by a preamplifier (Q3102) before going into pin 1 of IFIC (U3101).

A dual hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

VHF (136-174 MHz) Transmitter Power Amplifier (PA) 25 W 2-3

2.4 Low Intermediate Frequency (IF) and Receiver Back End

The 44.85 MHz high-IF signal from the second IF amplifier feeds the IF IC (U3101) at pin 1. Within the IF IC, the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the low-IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The low IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters FL3112, FL3114 for 20/25 kHz channel spacing or FL3111, FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mVrms (at 60% deviation) from U3101 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuitry).A Received Signal Strength Indicator (RSSI) signal is available at U3101 pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the microprocessor (U0101 pin 63) and in addition is available at accessory connector J0501-15.

3.0 VHF (136-174 MHz) Transmitter Power Amplifier (PA) 25 W

The radio’s 25 W PA is a three stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U3401) and the second stage (Q3421) is adjustable, controlled by pin 4 of PCIC (U3501) via U3402-1 and U3402-2. It is followed by an LDMOS final stage (Q3441).

Figure 2-2 VHF Transmitter Block Diagram

Devices U3401, Q3421 and Q3441 are surface mounted. A pressure pad between board and the radio's cover provides good thermal contact between the devices and the chassis.

PCIC

Pin Diode Antenna Switch RF Jack

Antenna

Harmonic Filter

PowerSense

PA-FinalStage

From VCO

ControlledStage

Controlvoltage

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

PADriver

2-4 VHF (136-174 MHz) Transmitter Power Amplifier (PA) 25 W

3.1 First Power Controlled Stage

The first stage (U3401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U3401 is controlled by a DC voltage applied to pin 1 from the op-amp U3402-1, pin 1. The control voltage simultaneously varies the bias of two FET stages within U3401. This biasing point determines the overall gain of U3401 and therefore its output drive level to Q3421, which in turn controls the output power of the PA.

Op-amp U3402-1 monitors the drain current of U3401 via resistor R3444 and adjusts the bias voltage of U3401 so that the current remains constant. The PCIC (U3501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U3402-1 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q3442, which in turn switches off the biasing voltage to U3401.Switch S3440 is a pressure pad with a conductive strip which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S3440 opens and the resulting high voltage level at the inverting inputs of the current control op-amps U3402-1 & 2 switches off the biasing of U3401 and Q3421. This prevents transmitter key up while the devices do not have proper thermal contact to the chassis.

3.2 Power Controlled Driver Stage

The next stage is an LDMOS device (Q3421) providing a gain of 12dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The bias is set during transmit mode by the drain current control op-amp U3402-2, and fed to the gate of Q3421 via the resistive network R3429, R3418, R3415 and R3416.

Op-amp U3402-2 monitors the drain current of U3421 via resistors R3424-27 and adjusts the bias voltage of Q3421 so that the current remains constant. The PCIC (U3501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U3402-2 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q3422, which in turn switches off the biasing voltage to Q3421.

3.3 Final Stage

The final stage is an LDMOS device (Q3441) providing a gain of 12dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set in transmit mode by the ASFIC and fed to the gate of Q3441 via the resistive network R3404, R3406, and R3431-5. This bias voltage is tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. In receive mode U3402-2 pulls the bias voltage to low via D3401. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via L3436 and L3437.A matching network consisting of C3441-49, L3443, and two striplines, transforms the impedance to 50 ohms and feeds the directional coupler.

VHF (136-174 MHz) Transmitter Power Amplifier (PA) 25 W 2-5

3.4 Directional Coupler

The directional coupler is a microstrip printed circuit, which couples a small amount of the forward power delivered by Q3441. The coupled signal is rectified by D3451. The DC voltage is proportional to the RF output power and feeds the RFIN port of the PCIC (U3501 pin 1). The PCIC controls the gain of stage U3401 and Q3421 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

3.5 Antenna Switch

The antenna switch consists of two PIN diodes, D3471 and D3472. In the receive mode, both diodes are off. Signals applied at the antenna jack J3401 are routed, via the harmonic filter, through network L3472, C3474 and C3475, to the receiver input. In the transmit mode, K9V1 turns on Q3471 which enables current sink Q3472, set to 96 mA by R3473 and VR3471. This completes a DC path from PASUPVLTG, through L3437, D3471, L3472, D3472, L3471, R3474 and the current sink, to ground. Both diodes are forward biased into conduction. The transmitter RF from the directional coupler is routed via D3471 to the harmonic filter and antenna jack. D3472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L3472 is selected to appear as a lambda / 4 wave transmission line, making the short circuit presented by D3472 appear as an open circuit at the junction of D3472 and the receiver path.

3.6 Harmonic Filter

Components L3491-L3493 and L3472, C3491-C3499 form a Chebychev low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R3491 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.7 Power Control

The transmitter uses the Power Control IC (PCIC, U3501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the directional coupler and rectified, to provide a DC voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power. The ASFIC (U0221) has internal digital to analog converters (DACs) which provide a reference voltage of the control loop to the PCIC via R3505. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuit.The PCIC provides a DC output voltage at pin 4 (INT) which sets the drain current of the first (U3401) and second (Q3421) transmitter stage via current control op-amps U3402-1 and U3402-2. This adjusts the transmitter power output to the intended value. Variations in forward transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power. Capacitors C3502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels. U3502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a DC voltage to the PCIC (TEMP, pin 30) proportional to temperature. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be reduced so as to reduce the transmitter temperature.

2-6 VHF (136-174 MHz) Frequency Synthesis

4.0 VHF (136-174 MHz) Frequency Synthesis

The frequency synthesizer subsystem consists of the reference oscillator (Y3261 or Y3263), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U3201), and the voltage-controlled oscillators and buffer amplifiers (U3301, Q3301-2 and associated circuitry).

4.1 Reference Oscillator

The reference oscillator (Y3263) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An analog to digital (A/D) converter internal to U3201 (LVFRAC-N) and controlled by the microprocessor via serial interface (SRL) sets the voltage at the warp output of U3201 (pin 25) to set the frequency of the oscillator. The output of the oscillator (U3263 pin 3) is applied to pin 23 (XTAL1) of U3201 via R3263 and C3235.

In applications were less frequency stability is required, the oscillator inside U3201 is used along with an external crystal Y3261, varactor diode D3261, C3261, C3262 and R3262. In this case, Y3263, R3263, C3235 and C3251 are not used. When Y3263 is used, Y3261, D3261, C3261, C3262 and R3262 are not used, and C3263 is increased to 0.1 uF.

4.2 Fractional-N Synthesizer

The LVFRAC-N synthesizer IC (U3201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balance attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13V positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

Figure 2-3 VHF Synthesizer Block Diagram

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER

DATA (U0101 PIN 100)

CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)

MOD IN (U0221 PIN 40)

+5V (U3211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U3211 PIN 1)

AUX1

VDD, DC5V MODOUT

U3201 LOW VOLTAGEFRACTIONAL-NSYNTHESIZER

AUX2

BW SELECT

TX RF INJECTION(1ST STAGE OF PA)

LO RF INJECTION

VOLTAGE CONTROLLED OSCILLATOR

LINE2-POLELOOP

FILTER

1

TRB

TO IF SECTION

VHF (136-174 MHz) Frequency Synthesis 2-7

A voltage of 5V applied to the super filter input (U3201 pin 30) supplies an output voltage of 4.5 VDC (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R3363) and the synthesizer charge pump resistor network (R3251, R3252). The synthesizer supply voltage is provided by the 5V regulator U3211.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin 47 VCP (U3201-47), a voltage of 13 VDC is being generated by the positive voltage multiplier circuitry (D3201, C3202, C3203). This voltage multiplier is basically a diode capacitor network driven by two (1.05MHz) 180 degrees out of phase signals (U3201-14 and -15).

Output LOCK (U3201-4) provides information about the lock status of the synthesizer loop. A high level at this output indicates a stable loop. IC U3201 provides the 16.8 MHz reference frequency at pin 19.

The serial interface (SRL) is connected to the microprocessor via the data line DATA (U3201-7), clock line CLK (U3201-8), and chip enable line CSX (U3201-9).

4.3 Voltage Controlled Oscillator (VCO)

The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U3301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuitry.

Figure 2-4 VHF VCO Block Diagram

Presc

RX

TX

MatchingNetwork Low Pass

Filter

Attenuator

Pin8

Pin14

Pin10

(U3211 Pin1)

VCC Buffers

TX RF Injection

U3201 Pin 32

AUX3 (U3201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20

TX/RX/BSSwitching Network

U3301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U3201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U3211 Pin1)

Steer Line Voltage (VCTRL)

Pin13

Pin3

TRB IN

LO RF INJECTION

Q3304

Q3301


The VCOBIC together with the Fractional-N synthesizer (U3201) generates the required frequencies in both the transmit and receive modes. The TRB line (U3301 pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables the TX tank and TX output (pin 10), and a low enables the RX tank and RX output (pin 8). A sample of the signal from the enabled RF output is routed from U3301 pin 12 (PRESC_OUT), via a low pass filter, to pin 32 of U3201 (PREIN).

A steering line voltage (VCTRL) between 2.5V and 11V at varactor diode D3361 will tune the full TX frequency range (TXINJ) from 136 MHz to 174 MHz, and at varactor diode D3341 will tune the full RX frequency range (RXINJ) from 181 MHz to 219 MHz. The RX tank circuit uses a Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q3304 is used for better side-band noise.

The external RX buffers (Q3301 and Q3302) are enabled by a high at U3301 pin 7 (RX_SWITCH) via transistor switch Q3303. In the TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U3201 pin 41) is applied to varactor diode D3362, which modulates the TX VCO frequency via capacitor C3362. Varactor D3362 is biased for linearity from VSF.

4.4 Synthesizer Operation

The complete synthesizer subsystem consists of the low voltage FRAC-N (LVFRACN), the reference oscillator (a crystal oscillator with temperature compensation), charge pump circuitry, loop filter circuitry and a DC supply. The output signal PRESC from the VCOBIC (U3301 pin 12) is fed to U3201 pin 32 (PREIN) via a low pass filter (C3318, L3318 and C3226) which attenuates harmonics and provides the correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U3201) is a dual modulus type with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal. The reference signal is generated by dividing down the signal of the reference oscillator (Y3261 or Y3263).

The output signal of the phase detector is a pulsed DC signal which is routed to the charge pump. The charge pump outputs a current at U3201 pin 43 (IOUT). The loop filter (which consists of R3221-R3223 and C3221-C3224) transforms this current into a voltage that is applied to the varactor diodes (D3361 for transmit, D3341 for receive) to alter the output frequency of the appropriate VCO. The current can be set to a value fixed within the LVFRAC-N IC, or to a value determined by the currents flowing into BIAS 1 (U3201-40) or BIAS 2 (U3201-39). The currents are set by the value of R3251 and R3252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT pin (U3201-45) for a certain software programmable time (adapt mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1 and BIAS 2, or by the internal current source. A settled synthesizer loop is indicated by a high level signal at U3201-4 (LOCK).

The LOCK signal is routed to one of the µP´s ADC inputs (U0101-56). From the measured voltage, the µP determines whether LOCK is active.

VHF (136-174 MHz) Frequency Synthesis 2-9

In order to modulate the PLL, the two spot modulation method is utilized. Via U3201 pin 10 (MODIN), the audio signal is applied to both the A/D converter (low frequency path) as well as the balance attenuator (high frequency path). The A/D converter changes the low frequency analog modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U3201-41) and connected to the VCO modulation diode D3362 via R3364.

3-1

Section 3


1.0 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Bad SINADBad 20dB Quieting

No Recovered Audio

START

Audio at pin 8 of U3101 ?

Check Controller(in the case of no audio)

OR ELSE go to “B”

Yes

No

Spray or inject 44.85MHz into XTAL Filter FL3101

Audio heard ?BYes

No

Check 2nd LO (44.395MHz) at C3135

LO present ?BYes

Check voltages on U3101

Biasing OK ?

No

No

A

Yes

Check Q3102 bias for faults

Replace Q3102

Go to B

Yes

No

Check circuitry around U3101.

Replace U3101 if defect

Check circuitry around Y3101. Replace Y3101 if defect

Voltages OK?

3-2 Troubleshooting Flow Chart for Receiver


IF Signal at C3035?

No

RF Signal at T3001?

RF Signal at C3012?

No

RF Signal at C3008?

No

RF Signal at C3474?

No or

Check Harmonic Filter J3401 and

Antenna Switch D3471,D3472,L3472

Check filter between C3474 & C3008. Check tuning

voltage at R3019

Inject RF into J3401

Is tuning voltage OK?

No

Yes

Check RF amp (Q3001) Stage

Check filter between C3012 & T3001

Yes

Check T3001, T3002, D3031, R3030-R3034,

L3032, C3034 and C3035

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes

Trace IF signal from C3035 to Q3101.

Check for bad XTAL filter

No

YesIF signal at Q3102

collector?

Before replacing U3101, check

U3101 voltages

Yes

Check for 5VDC

Is 9V3 present?

Check Supply Voltage circuitry. Check Q0681,

U3211 and U0641

No

No

No

Check U3501

Check varactor filter

No

Yes

Yes

Yes

A

A

B

weak RF

Troubleshooting Flow Chart for 25W Transmitter 3-3

2.0 Troubleshooting Flow Chart for 25W Transmitter (Sheet 1 of 3)

Current increase

when keyed?

NO

YES

START

Check if Pressure Pad closes S3440

Check Components between Q3441 and RF Output,

Antenna Switch D3471,D3472,Q3472

VR3471,Q3471

>500mA & <4A>4A

<500mA

Check PA StagesControl Volt-

age at TP3402

>1V

Short TP3403 to Ground

NO

YES

Voltage at TP3402 rises?

Check PA Stages NO

YES

PCIC U3501 Pin 14 9.3V

DC?

Check 9.3 V Regulator U0641

NO

YES

PCIC U3501 Pin 16 >4V

DC

Replace PCIC U3501

NO

YES

TP3404 9.1V DC

If U3201 Pin 2 is high, replace PCIC

U3501,otherwise check controller and

FGU

YES

NO

TP3403 >0.5V DC?

Replace PCIC U3501

Check Forward Power Sense Circuit (D3451)


NO

YES

PCIC U3501 Pin 5 > 1V

DC?

Check Power Setting, Tuning & Components between PCIC Pin 5 and ASFIC (U0221)

Pin 4 before replacing ASFIC

No or too low Power when keyed

3-4 Troubleshooting Flow Chart for 25W Transmitter


Check PA Stages


Measure DC Voltage at Pin 2 & 3 of U3401

>6

YES

DC Voltage at U3501

Pin 23 =0?

2-6

DC Voltage at U3402-1

Pin 1?

YES

Pin 2 Volt-age 0.62 * Voltage at

Pin 1?


NOReplace U3401

YES

NODC

Voltage at U3402-1 Pin

3 = 8.8V?

Check S3440, R3442 and R3443

YES

Pin 3 Volt-age 0.51 * Voltage at

Pin 1?

NOReplace U3401

<2V DC Voltage at U3402-2

Pin 7?

>6V

Check Components between U3402-2 Pin 7

and Q3421. Check Resistive Network at

Pins 5 & 6 before replacing Q3421

YES


Pin 5 <8.8V?


and Q3421. Check Resis-tive Network at Pins 5 & 6 before replacing Q3421

NO

Check Q3422

NO

Check Final PA Stage

2-6V

<2VCheck Resistive Net-work at Pins 2 & 3 of

U3402-1 before replac-ing U3401

Check Q3442 and Resistive Network at

U3402-1 Pin 3 before replacing

U3401




NO

0V

1-4V

Bias 2 DC Voltage at TP3406?

YES

RF Voltage at TP3401 >100mV?

YES

RF Voltage U3401 Pin 6

>3V?

Supply

Replace Q3441

Check FGU (U3301)

NO Check Components between TP3401 &

C3417

NO

YES ASFIC U0221 Pin 6 1-4V DC?

Check Bias Tuning before replacing ASFIC

U0221

Check Components between ASFIC and

Q3441 before replacing Q3441

YES

RF Voltage Q3421 Gate

>1V?

NO Check Components between C3417 &

Q3421

YES


>4V?

NO Check Components between Q3421 &

Q3441

Check Components between Q3441 & Antenna Connector

Voltage

3-6 Troubleshooting Flow Chart for Synthesizer

3.0 Troubleshooting Flow Chart for Synthesizer

+5V at U3201 Pins

13 & 30?

5V at pin 6 of

D3201

Is informationfrom µP U0101

correct?

Is U3201 Pin 47

= 13VDC ?

Is U3301 Pin 19<40 mVDC in RX &>4.5 VDC in TX? (at VCO section)

Start

Visual check of the Board OK?

CorrectProblem

Check 5VRegulator

U3211

Is 16.8MHzSignal at

U3201 Pin 19?

CheckY3261, Y3263 and associated parts

Are signalsat Pins 14 &

15 of U3201?

Check R3201

Check C3319Is U3201 pin 2

>4.5 VDC in Tx & <40 mVDC in Rx

Replace U3201

RemoveShorts

Is there a shortbetween Pin 47 and

Pins 14 & 15 ofU3201?

Replace or resoldernecessary components

Is RF level atU3201 Pin 32 -12 < x <-25

dBm?

Are R3221,

R3222, R3223, C3221, C3222,

& C3224 OK?

Replace U3201

If R3227, C3226 & C3227are OK, then see VCOtroubleshooting chart

Are Waveformsat Pins 14 & 15

triangular?

Do Pins 7,8 & 9 of

U3201 togglewhen channel is

changed?

Check programminglines between U0101

and U3201 Pins 7,8 & 9

Replace U3201

Check µP U0101Troubleshooting

Chart

No

Yes

No

Yes

No

Yes

No

No

No

Yes

Yes

No

Yes

Yes

No

Yes

Yes

Yes

No

No

No

No

Yes

No

Yes

Yes

Check D3201, C3202, C3203, C3205 & C3206

5V at U3201 pins 5, 20, 34 & 36

Check 5V Regulator

U3211, R3211

Is 16.8MHz signal at

U3201 pin 23?

Replace U3201

Yes

No

No

Yes

No

Yes

Troubleshooting Flow Chart for VCO 3-7

4.0 Troubleshooting Flow Chart for VCO

Are Q3301Base at 0.7V

Collector at 4.5V Emitter at 110mV


Collector at 4.5V Emitter at 1.7V

Are U3301 Pins13 at 4.4V15 at 1.1V10 at 4.5V16 at 1.9V

Low or no RF Signalat TP3001

Visual checkof board

OK?

35mV DC atU3301 Pin 19

NO

YES

at base of Q3301

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

Low or no RF Signalat input to PA

5V DC at U3301Pin 14 & 18 OK ?

4.8V DC atU3301 Pin 19

Is RF available at TP3401

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

Audio =180mVrmsat “-” side of

D3362

2.5VDCat D3362

If C3362 and R3363 are OK, then replace D3362

Replace R3363

Replace R3364

NO

NO

YES

YES

If R3402 and C3315 are OK,replace U3301

TX VCORX VCO

CorrectProblem


OK?

Make sure U3211 is working correctly and runner

between U3211 Pin 1 and U3301 Pin 14 & 18 is OK

Check runner between U3201 Pin 2

and U3301 Pin 19

Is RF available If all parts from U3301 Pin 8to Base of Q3301 are OK,

replace U3301

If all parts associated with the pins are OK,

replace Q3301

Check parts between T3001 and Q3301 Power OK but

no modulation

If all parts from TP3401 of U3401 Pin 16 are OK,

replace U3401

If all parts associated

with the pins are OK,

replace U3301

4.5V DC atU3301 Pin 3 OK?

YES

NO 4.5V DC atU3301 Pin 3 OK?

YES

NOMake sure Synthesizer is

working correctly and runner between U3201 Pin 28 and

U4301 Pin 3 is OK

5V DC at U3301Pin 14 & 18 OK ?

OK? OK?


replace Q3301

3-8 Troubleshooting Flow Chart for VCO


4-1

Section 4

VHF PCBS/SCHEMATICS/PARTS LISTS



The VHF circuits are contained on the Printed Circuit Board (PCB) which also contains the Controller circuits. This Chapter shows the schematics for the VHF circuits only, refer to the Controller section for details of the related Controller circuits . The PCB component layouts and the Parts Lists in this Chapter show both the Controller and VHF circuit components. The VHF schematics and the related PCB and parts list are shown in the tables below.

Table 4-1 VHF 1-25W Diagrams and Parts Lists

PCB :8486172B06 Main Board Top Side8486172B06 Main Board Bottom Side

Page 4-3Page 4-4

SCHEMATICSPower Amplifier 1 - 25WFRACNVoltage Controlled OscillatorReceiver Front EndIF

Page 4-5Page 4-6Page 4-7Page 4-8Page 4-9




Page 4-13Page 4-14

SCHEMATICSPower Amplifier 1 - 25WVoltage Controlled OscillatorReceiver Front EndIFFRACN



VH

F 1

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PC

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C01

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37

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41

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C32

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C3233

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C3253

C32

54

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C33

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C33

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20

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23

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C34

28

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31 C34

32

C34

33

C34

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3435

C34

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3442

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C3444

C3445

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C3447

C3448C3449

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C34

72

C34

73

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74

C34

97

C35

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D02

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D0651

D30

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D30

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D3221

D3341

D3361

D33

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D3471

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Q3471

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R01

01

R01

02

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04

R01

05

R01

06

R01

08

R01

10

R01

14

R01

15

R01

16

R01

31

R01

32

R01

70

R01

81

R01

82

R01

85

R01

86

R02

11

R02

12

R02

20

R02

21

R02

22

R02

23

R02

24

R02

25

R02

26

R02

27

R02

28R

0229

R02

41

R02

42

R02

51

R02

52

R02

53

R02

61R

0262

R02

67

R02

68 R02

69

R05

10

R05

33R

0535

R05

38

R05

39

R06

11R

0612

R06

51

R06

52

R06

81

R06

82

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3002

R30

03

R30

04

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09

R30

13

R30

14

R30

15

R30

16

R30

24

R30

25R

3026

R30

27

R30

28

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31

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44

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22

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23

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R3425

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17

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18

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C33

32

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21

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27

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38

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39

C34

40

C34

50

C34

51

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C34

71

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C34

92

C34

93

C34

94

C34

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3496

C34

98

C34

99

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C35

02

C35

03

C35

04

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C35

06

C35

10

D0101

D01

51

D01

79

D0301

D0621

D0660D0661

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00

D3011

D31

01

D32

01D

3261

D34

51

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71E

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E06

31

43 2

FL3

111

FL3

113

43 2

FL3

115

12

J040

1

140

J055

1

118

J055

2

L3025

L3111

L311

2

L323

1

L330

1

L330

2

L3311

L331

7

L331

8

L333

1

L333

2

L334

5L335

1

L340

2

L342

1

L343

6

L343

7

L349

1

L349

2

Q0151

Q01

71

Q01

73Q

0183

Q02

71Q

0641

Q0661 Q06

62Q

0663

Q3002

Q31

01Q

3102

Q3141

Q31

51

Q31

52

Q33

01

Q33

02 43

Q33

03

12

3

Q34

21

R01

07

R01

11R

0112

R01

13

R01

17

R01

21

R01

51R

0152

R01

71

R01

72

R01

73

R01

74

R0175

R0176

R0177

R0178

R01

79

R01

83

R01

84

R02

01

R02

02

R02

03

R02

04

R02

05

R02

06

R02

07

R02

08

R02

65

R02

66

R02

73

R02

74

R02

75

R02

76

R03

23

R03

24

R03

31

R03

32

R03

33

R03

35

R03

41

R03

42

R03

43

R03

44

R03

45

R03

46

R03

47

R04

01

R04

07

R04

08

R04

09R

0410

R04

12 R04

41

R04

67R

0468

R04

81

R04

82

R05

11

R05

12R

0525

R05

29

R05

30

R05

31R

0537

R05

41

R05

42

R05

91

R05

92

R06

21

R06

41

R06

42R

0643

R06

61

R06

62R

0671

R06

72

R30

00

R30

06R30

10

R30

11

R30

12

R30

18

R30

19

R30

21

R30

23R

3030R30

32

R30

33

R30

34R30

35

R30

36

R31

02

R31

04R

3105

R31

07R

3108

R31

12

R31

13

R31

14

R31

15

R31

16R

3118

R31

33

R31

34

R31

41

R31

46R

3147

R31

51

R31

52

R31

53

R31

54

R32

01

R32

03

R32

04

R32

06

R32

26R32

28

R32

41

R32

61R

3262

R32

63

R33

01

R33

02

R33

03

R33

04

R33

05

R33

06R

3307

R33

08R33

11

R33

12

R33

13

R3314

R3315

R33

16

R33

17

R33

18

R3319

R33

21

R33

23

R33

31

R33

43

R33

51 R3352

R3353

R3354

R33

55

R33

56 R34

11

R34

12

R34

13

R34

17

R34

18

R34

21 R34

22

R34

23R34

28

R34

29

R34

40

R34

41

R34

42R

3443

R34

44

R34

45

R34

46

R34

50

R34

52

R34

54

R34

55

R34

57R

3474

R34

75

R35

01

R35

02R

3504

S34

40

TP

0101

TP

0102

TP

0103

TP

0104

TP

0151

TP

0221

TP

0222

TP

0481

TP

0492

TP

0497

TP

0530

TP

0661

TP

3001TP

3201

TP

3202

TP

3402

TP

3403

TP

3404

TP

3405

TP

3406

14 5

8

U01

11

22 2187

1

1618 9

U01

41

2815 14

1

U03

01

U03

31

1 458

U03

41

U03

42

458 U

0351

145

8

U06

52

U0653

13725

13

11

120

10

14 5

8

U34

02

1

17

9

25

U35

01

VR0151

VR

0504

VR

0509

VR

0537

VR

0541

VR

0601

VR0621

VR

0671

VR

3471

432

Y31

01

6

43 1

Y32

61

2 34

Y32

63

1

1

1

1

1

48

U01

22R

AM

U32

01F

RA

CN

U33

01V

CO

IC

15

8486172B06_T1

VCO-REV-T3

PA-REV-T1

C99

FE-REV-T3

IF-REV-T4

FRAC-T4

CNTL-REV-T6

WA

RIS

VH

F R

F 1

-25W

Bot

Sid

e84

8617

2B06

-T1

BO

T S

IDE

CH

EC

KO

NE

(

)

ILLU

STR

ATO

RD

AT

EE

NG

INE

ER

DA

TE

PR

OG

RA

MD

ISK

DW

G. N

O.

Illus

trat

orR

K15

. Oct

200

0

ZW

G01

3039

8

ZW

G01

3039

8-O

ZW

G01

3003

98-O

VH

F (

136-

174

MH

z) 1

-25W

848

6172

B06

Bo

tto

m S

ide

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-5

RX

IN_V

HF

_PA

_1

NU

NU

17nH

L343

7

NU

NU

0

R34

40

NU

C34

27

56pF

NU

39K

10K

NU

6.8K

R34

11

NU

R35

0610

K

NU

C35

08

C3443120pF

C3444

6.2p

F

C35

09

1uF

C34

23

0.8x

25

wid

th 2

.032

1.54

2x4

2.21

6xJ3

401

7.5

R34

27

R34

26

2.7

2.7

2.7

R34

28

R34

25

C35

0622

00pF

2.4K

120

R34

14

2.4K

R35

0239

K

MO

SB

IAS

_2_V

HF

_PA

_1 R34

45

L341

2

C34

32

15nH

C34

04

33pF

2200

pF

C34

10.0

22uF

PA

SU

PV

LTG

_VH

F_P

A_1

C34

7327

0pF

R34

15 100

330p

FC

3426

Q34

21

R34

17

39K

R34

43

10K

R34

91

R34

41

C34

1633

0pF

100p

F

330p

F

C34

00

C35

07

R34

00

470

RE

SE

T_V

HF

_PA

_1

51R34

32

.033

uFC

3437

L343

657

R01

C35

04.0

1uF

470p

FC

3503

470p

FC

3419

TP

3402

TP

3403

57R

01

L340

2

C34

0647

0pF

R34

0130

0

C34

28F

EC

NT

L_2

C34

35

2200

pF

C3449

330p

F

120pF

C35

0222

00pF

25nH

L344

3

10K

R35

04

470

R34

71Q

3472

C34

34.0

1uF

MO

SB

IAS

_247

K

R34

04

47pF

RE

SE

T

C34

31

C34

21.0

33uF

CLK

51R

3431

R34

352.

7

INT

_SW

B

C34

25.0

22uF

U35

023GN

D

PO

S1

2V

OU

T

C34

92

68pF

LM50

C34

936.

8pF

DA

TA

_VH

F_P

A_1

2.2K

20pF

C34

45

R34

42

C34

2233

0pF

1

R34

444.

7

5.6V

VR

3471 2

3

39K

R34

21

DA

TA

C35

051u

F

33pF

C34

03

6.8p

FC

3475

TE

MP

SE

NS

ET

EM

PS

EN

SE

_CN

TLR

_1

1K

R35

0720

K

PA

_PW

R_S

ET

R35

09

C34

5110

00pF

.022

uFC

3471

C34

95

C34

97

CS

X

3.3p

F

C34

74

220p

F

65

784

TX

INJ_

VH

F_P

A_1

18pF

LM29

04U

3402

-2

470p

F

R34

13

3.3K

9V3

C35

0122

00pF

FE

CN

TL_

2_V

HF

_PA

_1IN

T_S

WB

_VH

F_P

A_1

D34

01

CS

X_V

HF

_PA

_1

D34

72

33pF

C3446100pF

C34

18

D34

51

51nH

L349

3

R34

74

51

L341

168

nH

R34

7351

C34

9115

pF

.022

uFC

3411

D34

71

R34

0330

0

470p

FC

3405

L347

1

1.2u

H

100K

R34

06

51nH

R35

0810

0K

L349

1

11.0

3nH

5.6K

R34

12

L341

3

R35

05

300K

270p

F

120pFC3448

C34

72

2.7

R34

24

47pF

C34

17

C34

3947

0pF

0

R34

46

150pF

C34

96

C3442

R34

55

36pF

C35

10

100K

CN

TLV

LTG

_VH

F_P

A_1

470p

F

PA

_PW

R_S

ET

_VH

F_P

A_1

470p

FC

3453

10uF

C34

36

R34

2922

0

R34

332.

7

C34

3356

pF

R35

01

L349

251

nH

6.8K

22K

R34

18

231

84

C34

40

1000

pF

RX

IN

U34

02-1

LM29

04

13pF

C34

94

20 VAR1

18 VAR2

24 VAR3

VG

15

6VL19 VLIM

TX

INJ

21 RS

31R

SE

T

23 RX 2T1

30T

EM

P

14V

10

16V

45

17 V5EXT

9F

168

8GND1

25G

ND

2

4INT22 NA

11Q

10Q

X

1RFIN

29C

EX

3CI

5CJ

7CL

26C

LK

12C

QC

QX

1328

DA

TA

H99

S-4

U35

01

32A

NO

27B

PO

S

FE

CN

TL_

1_V

HF

_PA

_1

Q34

42

R34

02

16pF

C34

47

15

39K

R34

23

Q34

11

TP

3406

CLK

_VH

F_P

A_1

470p

F

TP

3401

L342

213

.85n

H

470p

F

470p

FC

3424

30K

C34

38

R34

52R

3454

12K

R34

0510

0

330p

F

C34

01R

FIN

16R

FO

UT

16

RF

OU

T2

7

VC

NT

RL

1

VD

114

2V

G1

VG

23

GND1 4

GND2 5

GND3 12GND4 13

NC

18

NC

29

NC

310

NC

415

09Z

67

U34

01

G2

11

C34

9813

pF

CN

TLV

LTG

16pF

C34

99

470p

FC

3450

470

R34

50

TP

3405

PA

SU

PV

LTG

100

L340

3

R34

16

Q34

22

68nH

330p

F

9V3_

VH

F_P

A_1

C34

12

SW

ITC

HS

34407.66

nH

L341

4

C34

13.0

22uF

C3441150pF

R34

342.

7

10K

R34

75

R34

57

R34

22

120

2.2K

51nH

L347

2

Q34

71

57R

01

L342

1

330p

FC

3414

12pF

C34

52

K9V

1K

9V1_

VH

F_P

A_1

D

G

GN

D1

GN

D2

S1S2S3S4

Q34

41

.022

uFC

3415

TP

3404

100p

F

C34

20

FE

CN

TL_

1

C34

02.0

22uF

NC

PA

_SW

B

A+L3

401

4.22

nH

9V3F

LT

NC

9V3F

LT

U_D

RIV

ER

9V3F

LT

PA

_SW

B

U_D

RIV

ER

9V3F

LT

9V3F

LT

A+

U_P

RE

DR

IVE

R

NC

PA

_SW

B

A+

NC

9V3F

LT

U_P

RE

DR

IVE

R

9V3F

LT9V

3FLT

MO

SB

IAS

_1

NC

NC

NC

NC

NC

NC

NC

NC

2

NU

ZW

G01

3039

2-A

VH

F (

136-

174

MH

z) P

ow

er A

mp

lifie

r 1-

25W

4-6

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

SO

UR

CE

)

3.63

VD

C

Tem

p.C

omp.

Xta

l

Ref

.Osz

.

R32

03

A1

5A

2

4A

3

K1

1K

22

K3

3

47

D32

01

6

47K

NU

TR

BL3

232

2.2u

HN

U

R32

28

C32

31

C32

25

.01u

F

L320

139

0nH

0.1u

F

C32

02.0

1uF

100

R32

23

C32

29

D32

21

0.1u

F

.047

uF

CLK

C32

51

C32

07

22pF

NU

47K

VC

OB

IAS

_2

R32

25

C32

268.

2pF

MO

DIN

_VH

F_F

N_1

TP

3201

R32

52

VC

OB

IAS

_1_V

HF

_FN

_1

330K

16_8

MH

z_V

HF

_FN

_1

PR

ES

C_V

HF

_FN

_1

R32

420

100

R32

41

VS

F_V

HF

_FN

_1

DA

TA

VC

OM

OD

_VH

F_F

N_1

CS

X_V

HF

_FN

_1

100p

F

C32

27

22pF NU

CS

X

IN_5

V_R

F_R

EG

_VH

F_F

N_1

C32

40

NU

1G

ND

4G

ND

1

3O

UT

6IN

16.8

MH

z75

Z04

Y32

61

100K

R32

27

0.1u

FC

3254

C32

08

0.1u

F

NU

.01u

FC

3232

47K

R32

26

PR

ES

C

C32

142.

2uF

C32

210.

1uF

1uF

C32

24

C32

630.

1uF

VM

ULT

11514

VM

ULT

212

VM

ULT

311

VM

ULT

4

VRO 13

25

WA

RP

23X

TA

L1X

TA

L224

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

47

VC

P

31N

C3

44PD_GND

PD_VDD 5

PR

EIN

32

33 PRE_GND 34PRE_VDD

35P

VR

EF

18R

EF

SE

L45

IAD

AP

T

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN41

MO

DO

UT

17N

C1

29N

C2

39B

IAS

2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6 36DVDD

19F

RE

FO

UT

46A

DA

PT

SW

22 AGND

48A

UX

1

1A

UX

22

AU

X3

3A

UX

4

20AVDD

40B

IAS

1

VC

OB

IAS

_1

63A

27

U32

01

47

R32

01

VS

F

C32

22

0

R32

11

0.1u

F

L323

1

0.1u

FC

3211

TP

3202

1

2.2u

H

C32

4322

0pF

16_8

MH

z

VD

DA

VD

DA

_VH

F_F

N_1

VC

OB

IAS

_2_V

HF

_FN

_1

0.1u

FC

3209

C32

4622

0pF

NU

C32

0610

uF

5V_V

HF

_FN

_2

33K

R32

06

Q32

21

R32

5118

0K

.01u

F

C32

280.

1uF

C32

35

2.2u

FC

3210

VC

TR

L_V

HF

_FN

_1

R32

04

LOC

K_V

HF

_FN

_1

47

1uF

C32

23

NU

220p

F

R32

62 NU

C32

45

BW

SE

LEC

T

6.2K

C32

15

R32

24

47K

C32

13

2.2u

F

1G

ND

5IN

2N

R

4O

UT

3S

D

2.2u

F

VCC

4

VC

NT

L

1

AD

P33

00U

3211

6E

RR

Y32

63T

TS

05V

16.8

MH

z

GND

2

OU

T 3

MO

DIN

VC

TR

L

C32

55

DA

TA

_VH

F_F

N_1

220p

FC

3242

2.2u

F

5V_V

HF

_FN

_1

.01u

F

R32

2268

0

TR

B_V

HF

_FN

_1

C32

05

C32

6233

0pF

NU

NU

VC

OM

OD

C32

4156

pF

R32

6147

K

2.2u

FC

3233

R32

21

CLK

_VH

F_F

N_1

C32

52

390

1000

pF

.01u

FC

3234

C32

534.

7uF

NU

IN_5

V_R

F_R

EG

5V

D32

61C

3261

NU

LOC

K

C32

44

39pF

BW

SE

LEC

T_V

HF

_FN

_1

220p

F

C32

03

4,7k

.01u

F

NC

5V

5V

R32

63

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

VD

DA

VD

DA

NC

NC

NC

In c

ase

Y32

61 is

use

d in

stea

d of

Y32

63,

repl

acem

ent o

f the

follo

win

g pa

rts

req

uire

s

new

tem

pera

ture

com

pens

atio

n of

the

freq

uenc

y:

Y32

61, U

3201

, R32

61, R

3262

, C32

62, D

3261

5VD

C

-2 to

+7d

Bm

13.3

0VD

C6.

83V

DC

4.52

VD

C (

R)

+1d

Bm

0VD

C (

R)

4.95

VD

C (

R)

2.90

VD

C3.

42V

DC

2.5V

DC

1.1-

4.1V

DC

0VD

C (

T)

2.62

VD

C (

T)

4.91

VD

C (

T)

11.2

8VD

C

4.97

VD

C

2.5-

11V

DC

5VD

C (

LOC

KE

D)

0VD

C (

UN

LOC

KE

D)

3.63

VD

C

0VD

C5V

DC

HF

(13

6-17

4 M

Hz)

FR

AC

N

ZW

G01

3039

3-A

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-7

4.22VDC (T)

0VD

C (

R)

1.92

VD

C (

T)

4.52

VD

C (

R)

2.62

VD

C (

T)

4.52

VD

C (

R)

0VD

C (

T)

1.42

VD

C (

R)

0VD

C (

T)

4.97

VD

C

4.40

VD

C

1.53

VD

C (

R)

0VD

C (

T)

0.92

VD

C (

R)

0VD

C (

T)

0VD

C (

R)

0-5d

Bm

(T

)

7.44

VD

C (

R)

9.14

VD

C (

R)

0VD

C (

T)

0VD

C (

T)

11-1

4dB

m (

R)

-2 to

7dB

m

0VD

C (

T)

2.18

VD

C (

R)

0VD

C (

T)

1.49

VD

C (

R)

2.56VDC (R)

0VD

C (

R)

2.5-

11V

DC

4.54

VD

C

0VD

C (

T)

4.78VDC (R)

2.66VDC (T)

4.52

VD

C (

T)

WA

RIS

MO

BIL

E V

HF

_VC

O

4.78VDC (R)4.27VDC (T)

4.91

VD

C (

T)

9.21

VD

C

3.83

VD

C (

R)

L333

3

R33

5612

K

VC

OB

IAS

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HF

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O_1

1uH

D33

61

R33

35 33

9V3_

VH

F_V

CO

_2

220

R33

61

C33

31

VD

DA

_VH

F_V

CO

_1

10KN

U10

pF

35.5

nHR

3321

15K

L334

6

L333

168

nH

R33

36

100n

H

NU

C33

120.

1uF

10T

X_O

UT

13T

X_S

WIT

CH

14V

CC

_BU

FF

ER

S

18V

CC

_LO

GIC

NU

L331

1

2R

X_I

AD

J8

RX

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T

7R

X_S

WIT

CH

3S

UP

ER

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R

TR

B_I

N1916

TX

_BA

SE

15T

X_E

MIT

TE

R

1T

X_I

AD

J

4C

OLL

_RF

IN

20F

LIP

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11GN

D_B

UF

FE

RS

9GN

D_F

LAG

GN

D_L

OG

IC

17

12P

RE

SC

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T5

RX

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SE

6R

X_E

MIT

TE

R

U33

0150

U54

R33

62

47

NU

330p

F

C33

04

R33

54

150K

RX

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VC

OM

OD

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F_V

CO

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C33

6368

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L331

733

nH33

pFC

3317

C33

577.

5pF

1uH

L335

1

100

R33

11

10K

R33

1722R

3318

NU

L334

4

1uH

C33

625.

6pF

100n

HL3

332

22

R33

06

0R

3316

NU

18nH

L330

1

C33

441.

8pF

Q33

01

L331

8

100n

H

C33

11.0

22uF

6.8p

F

C33

14

C33

15.0

1uF

C33

03

15pF

20K

R33

51

Q33

04B

FQ

67W

NU

47K

R33

19

3.3p

FC

3316

56nH

L336

1

0R33

08

TR

B_V

HF

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O_1

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L336

4

C33

51

.01u

F12

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3352

PR

ES

C

VC

OM

OD

VC

OB

IAS

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HF

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O_1

R33

23

1K

VC

TR

L

C33

47.0

1uF

C33

370.

1uF

NU

R33

0722

0

D33

41

VC

OB

IAS

_1

RX

INJ_

VH

F_V

CO

_1

100K

R33

53

C33

24.0

1uF

L330

210

0nH

VC

OB

IAS

_2

2.2K

R33

03C

3345

20pF

L336

268

nH

15pF

C33

64

8nH

L334

1

C33

330.

1uF

56nH

L336

3

100

0.1u

FC

3332

NU

R33

12

.022

uFC

3352

C33

05

VD

DA

NU

5.6p

F

TR

B

100

R33

43

C33

34

VS

F_V

HF

_VC

O_1

.022

uF

.01u

F

C33

55

VS

F

C33

423p

F

D33

62

1KR33

13

C33

36.0

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NU

C33

35.0

1uF

R33

41

220

R33

5520

K

NU

R33

63

39K

9V3_

VH

F_V

CO

_19V

3

VC

TR

L_V

HF

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O_1

PR

ES

C_V

HF

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O_175

6.8p

F

R33

01

C33

02

C33

065.

1pF

NU

15pF

C33

01

NU

330p

FC

3313

47

R33

31

3

C33

1910

00pF

UM

C5N

2

4

1

C33

46

Q33

03

C33

41

.01u

F

1000

pF

39

R33

42

NU

Q33

02

TX

INJ_

VH

F_V

CO

_1T

XIN

J

5.6p

FC

3318

220

R33

15

9V3_

VH

F_V

CO

_3

NU

C33

61

C33

56.0

22uF

1000

pF

180n

H

1KR33

04

R33

02

L334

3

220

100

NU

R33

05

C33

6510

00pF

R33

14

R33

64

47K

NU10

C33

48.0

1uF

VS

F

1uH

L334

5

VS

F

VS

F

NC

NC

NC

VH

F (

136-

174

MH

z) V

olt

age

Co

ntr

olle

d O

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ato

r

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G01

3039

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4-8

VH

F 1

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Bs

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emat

ics

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ts L

ists

3

120p

F

C30

21

D30

041

2

RX

INJ

FE

CN

TL_

1

SP

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1000

pFC

3020

100p

FC

3016

1.5K

R30

00

SP

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IF_V

HF

_FE

_1

D30

03

12

3

SP

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C30

14

D30

01

7.5p

F

R30

16

104 6

3 1210

00pF

C30

36

XF

MR

T30

02

3300

pFC

3003

4.7K

R30

11

RX

IN

K9V

1__V

HF

_FE

_1

NU

R30

30 10

SP

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NU

150n

HL3

025

820

R30

34

D30

001 2

3

NU

1000

pFC

3019

FE

CN

TL_

1_V

HF

_FE

_1V

LTG

C30

06

3300

pFC

3000

56pF

13pF

C30

32

1.5K

R30

25

NU

220

RX

INJ_

VH

F_F

E_1

R30

18

3300

pFC

3011

FE

CN

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2

R30

31

51

SP

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330p

F

C30

09

C30

01

9V3

C30

13

4.7p

F

Q30

02

56pF

SP

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100K

R30

09

9V3_

VH

F_F

E_2

R30

02

1KR30

03

18pF

560

R30

32

C30

35

C30

24

NU

820

NU

3300

pF

NU

R30

23

0

C30

05

NU

4.7p

FC

3018

100p

F

C30

3010

00pF

NU

330p

FC

3023

C30

27.0

1uF

R30

2839

0

560n

H

L303

1

56pF

C30

04

SP

_1_2

R30

121K

NU

33nH

L303

4

Q30

21

NU

0R30

351.

5KR

3004

0R30

33

3300

pFC

3007

330p

FC

3029

K9V

1

390

R30

24

NU

.01u

FC

3028

10K

1KR30

36

R30

06

R30

26

NU

SP

_2_2

10K

R30

14

SP

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51C

3015

C30

02

9.1p

F

56pF

82pF

C30

34

NU

18pF

C30

31

IO3

IO4

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FC

3033

D30

31

IO1

IO2

560

R30

21

10R30

15

1000

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3008

SP

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FC

3022

680

R30

10

C30

17

150n

HL3

032

43pF

1000

pF

IF

FE

CN

TL_

2_V

HF

_FE

_1

Q30

01

SP

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SP

_2_3

R30

13

R30

27

3.3K

47K

R30

19

10K

L300

2

2.7p

F

470n

H

NU

C30

25 TP

3001

100K

R30

01

C30

26

D30

11

4 6

3 12

0.1u

F

RX

IN_V

HF

_FE

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FM

RT

3001

9V3_

VH

F_F

E_1

9V3

330p

FC

3010

NC

NC

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11_2

9V3

3.0-

7.5V

3.6V

DC

C30

12

VH

F (

136-

174

MH

z) R

ecei

ver

Fro

nt

En

d

ZW

G01

3039

5-A

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F 1

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PC

Bs

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emat

ics

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ts L

ists

4-9

9180

469V

03

3.9V

DC

12.

5kH

z 0

VD

C20

/25k

Hz

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DC

0.75

VD

C

0.75

VD

C3V

DC

9180

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06

9180

469V

04

9180

468v

04

9180

468V

06

3VD

C6.

8K

R31

07

9V3

R31

351.

2K

390

1GND1GND2 2GND3 4

5GND4

3IN

6O

UT

R31

15

FL3

101

12R

16

R31

1727

K

Q31

02

Q31

51

680

R31

46

620n

HL3

111

620

R31

08

R31

18

6.8K

R31

1112

K

C31

01

5V_V

HF

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GND2 4

1IN

2O

UT

NU

2.2p

F

FL3

111

3

GND1

U31

15-1

CN

TL 13

12

VD

D

14

VS

S 7

DIS

CA

UD

IO_V

HF

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_1

15K

R31

32

0.1u

FC

3144

120p

FC

3143

C31

39

C31

410.

1uF

0.1u

F

13

12

VD

D

14

VS

S 7

Q31

41

U31

11-1

CN

TL

R31

1633

0

10

9V3_

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F_I

F_2

3GN

D

1IN

2O

UT

R31

02

C31

10

27pF

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113

0.1u

FC

3142

9.1p

F

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_VH

F_I

F_1

100

R31

04

NU

C31

13

12GND2 4GND3

GND4 5

IN3

OU

T6

NU

DIS

CA

UD

IO

12R

16F

L310

2

GND1

1000

pF

R31

51

C31

00

C31

400.

1uF

10K

1110

VD

D

14 VS

S

7

3

14

VD

D 7

VS

S

U31

11-4

CN

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12

U31

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5

CN

TL

4

Q31

52C

3152

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F

.01u

FC

3151

R31

338.

2K

4700

pFC

3146

27K

R31

06

C31

12

390

R31

41

82pF

10R

3112

1.8K

R31

42

R31

5410

K

C31

22

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uF

Q31

01

6 VC

C33

0R

3113

20MIXOUT4 OSCIN

3OSCOUT

10 QUADIN

1 RFIN

2RFIN_DEC

5RSSIOUT

9 RSSI_FEED

15

18 IFAMPIN 16IFAMPOUT

19 IFAMP_DEC1

17IFA

MP

_DE

C2

14 LIMIN11LIMOUT 13LIM_DEC1 12LIM_DEC2

SA

616

U31

01

8AUDIOOUT

7 AUDIO_FEED

GND

51

44.3

95M

Hz

12R

17Y

3101

2G

ND

4G

ND

1

3O

UT

1IN

R31

30

C31

3630

pF

C31

35

33pF

12K

R31

01

R31

47

12K

C31

3310

uF

C31

15

100

R31

05

22pF

620n

HL3

100

0.1u

F

NU

C31

37.0

39uF

C31

34

455K

Hz

3

21

BW

SE

LEC

T_V

HF

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_1 BW

SE

LEC

T

45B

02

Y31

02

C31

03

33pF

C31

320.

1uF

10K

R31

52

0.1u

FC

3111

U31

15-3

6CN

TL

89

14 VD

D 7VS

S

18pF

C31

14L3

112

620n

H

9V3_

VH

F_I

F_1

5V

D31

01

RS

SI_

VH

F_I

F_1

OU

T

.039

uFC

3123

FL3

112

3

GND1

GND2

4

1IN

2

R31

1410

0

R31

34

10K

NU

2.4K

R31

44

U31

11-2

5

CN

TL

43

14 VD

D 7

VS

S

3.3K

R31

45

C31

45

C31

470.

1uF

620n

HL3

101

0.1u

F22

0pF

C31

48

NU

10V

DD

14 VS

S

7

NU

1pF

C31

31

U31

15-4

CN

TL

12

11

C31

210.

1uF

FL3

115

GND1

34

GND2

IN1

OU

T2

15pF

C31

02

NU

U31

11-3

6CN

TL

89

14

VD

D

7VS

S

3G

ND

1IN

2O

UT

RS

SI

C31

16

FL3

114

0.1u

F0.

1uF

R31

53

C31

04

5V

10K

5V

9V3

9V3

9V3

9V3

9V3

5V

9V3

5V

9V3

VH

F (

136-

174

MH

z) IF

ZW

G01

3039

6-O

4-10

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

VH

F P

CB

848

6172

B06

Par

ts L

ist

1-25

W

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C30

0021

1374

1F37

3.3n

F 5

0VC

3001

2113

740F

194.

7pF

5%

C30

0221

1374

0F26

9.1p

F 5

%C

3003

2113

741F

373.

3nF

50V

C30

0421

1374

0F45

56pF

5%

C30

0521

1374

0F51

100p

F 5

%C

3006

2113

740F

4556

pF 5

%C

3007

2113

741F

373.

3nF

50V

C30

0821

1374

1F25

1nF

50V

C30

0921

1374

1F13

330p

F 5

0VC

3010

2113

741F

1333

0pF

50V

C30

1121

1374

1F37

3.3n

F 5

0VC

3012

2113

741F

251n

F 5

0VC

3013

2113

740F

4556

pF 5

%C

3014

2113

740F

247.

5pF

5%

C30

1521

1374

0F45

56pF

5%

C30

1621

1374

0F51

100p

F 5

% 5

0VC

3017

2113

740F

4243

pF 5

% 5

0VC

3019

2113

741F

251n

F 5

0VC

3020

2113

741F

251n

F 5

0VC

3021

2113

740F

5312

0pF

5%

50V

C30

2221

1374

1F49

10nF

50V

C30

2621

1374

3E20

100n

F 1

6VC

3027

2113

741F

4910

nF 5

0VC

3028

2113

741F

4910

nF 5

0VC

3030

2113

741F

251n

F 5

0VC

3033

2113

740F

205.

1pF

5%

50V

C30

3421

1374

0F49

82pF

5%

50V

C30

3521

1374

0F33

18pF

5%

50V

C30

3621

1374

1F25

1nF

50V

C31

0021

1374

1F25

1nF

50V

C31

0221

1374

0F31

15pF

5%

50V

C31

0321

1374

0F39

33pF

5%

50V

C31

0421

1374

3E20

100n

F 1

6VC

3110

2113

740F

3727

pF 5

% 5

0VC

3111

2113

743E

2010

0nF

16V

C31

1221

1374

0F49

82pF

5%

50V

C31

1421

1374

0F33

18pF

5%

50V

C31

1521

1374

0F35

22pF

5%

50V

C31

1621

1374

3E20

100n

F 1

6VC

3121

2113

743E

2010

0nF

16V

C31

2221

1374

3E11

39nF

10%

C31

2321

1374

3E11

39nF

10%

C31

3221

1374

3E20

100n

F 1

6VC

3133

2311

049A

57TA

NT

CP

10u

F 1

0% 1

6VC

3134

2113

743E

2010

0nF

16V

C31

3521

1374

0L30

33pF

2%

C31

3621

1374

0L29

30pF

2%

C31

3721

1374

3E11

39nF

10%

C31

3921

1374

3E20

100n

F 1

6V

C31

4021

1374

3E20

100n

F 1

6VC

3141

2113

743E

2010

0nF

16V

C31

4221

1374

3E20

100n

F 1

6VC

3143

2113

740F

5312

0pF

5%

50V

C31

4421

1374

3E20

100n

F 1

6VC

3145

2113

743E

2010

0nF

16V

C31

4621

1374

1F41

4.7n

F 5

0VC

3147

2113

743E

2010

0nF

16V

C31

5121

1374

1F49

10nF

50V

C31

5221

1374

1F49

10nF

50V

C32

0221

1374

1F49

10nF

50V

C32

0321

1374

1F49

10nF

50V

C32

0521

1374

1F49

10nF

50V

C32

0623

1104

9A57

TAN

T C

P 1

0uF

10%

16V

C32

0821

1374

3E20

100n

F 1

6VC

3209

2113

743E

2010

0nF

16V

C32

1023

1104

9A40

TAN

T C

P 2

.2uF

10%

10V

C32

1121

1374

3E20

100n

F 1

6VC

3213

2311

049A

40TA

NT

CP

2.2

uF 1

0% 1

0VC

3214

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

0VC

3215

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

0VC

3221

2113

743E

2010

0nF

16V

C32

2221

1374

3E20

100n

F 1

6VC

3224

0882

422W

23F

ILM

SM

1.0

uF 1

5V 5

%C

3225

2113

743E

2010

0nF

16V

C32

2621

1374

0F25

8.2p

F 5

% 5

0VC

3227

2113

740F

5110

0pF

5%

50V

C32

2821

1374

3E20

100n

F 1

6VC

3229

2113

743E

1247

nF 1

0%C

3231

2113

741F

4910

nF 5

0VC

3232

2113

741F

4910

nF 5

0VC

3233

2311

049A

40TA

NT

CP

2.2

uF 1

0%C

3234

2113

741F

4910

nF 5

0VC

3235

2113

741F

4910

nF 5

0VC

3242

2113

740F

5922

0pF

5%

50V

C32

4321

1374

0F59

220p

F 5

% 5

0VC

3244

2113

740F

5922

0pF

5%

50V

C32

4521

1374

0F59

220p

F 5

% 5

0VC

3246

2113

740F

5922

0pF

5%

50V

C32

5121

1374

3E20

100n

F 1

6VC

3252

2113

741F

251n

F 5

0VC

3253

2311

049A

56TA

NT

CP

4.7

uF 2

0% 1

0VC

3254

2113

743E

2010

0nF

16V

C32

5523

1104

9A40

TAN

T C

P 2

.2uF

10%

10V

C32

6321

1374

3E20

100n

F 1

6VC

3302

2113

740F

236.

8pF

5%

50V

C33

0321

1374

1F49

10nF

50V

C33

0621

1374

0F20

5.1p

F 5

% 5

0VC

3311

2113

743E

0722

nF 1

6VC

3314

2113

740F

236.

8pF

5%

50V

C33

1521

1374

0F31

15pF

5%

50V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C33

1621

1374

0F15

3.3p

F 5

% 5

0VC

3317

2113

740F

3933

pF 5

% 5

0VC

3318

2113

740F

215.

6pF

5%

50V

C33

1921

1374

1F25

1nF

50V

C33

2421

1374

1F49

10nF

50V

C33

3221

1374

3E20

100n

F 1

6VC

3333

2113

743E

2010

0nF

16V

C33

3421

1374

3E07

22nF

16V

C33

3521

1374

1F49

10nF

50V

C33

3621

1374

1F49

10nF

50V

C33

3721

1374

3E20

100n

F 1

6VC

3341

2113

741F

251n

F 5

0VC

3342

2113

740L

053.

0pF

+-0

.1pF

C33

4421

1374

0F09

1.8p

F 5

% 5

0VC

3345

2113

740L

2520

pF +

-0.2

5pF

C33

4621

1374

1F49

10nF

50V

C33

4721

1374

1F49

10nF

50V

C33

4821

1374

1F49

10nF

50V

C33

5121

1374

1F49

10nF

50V

C33

5221

1374

3E07

22nF

16V

C33

5521

1374

1F49

10nF

50V

C33

5621

1374

3E07

22nF

16V

C33

5721

1374

0F24

7.5p

F 5

% 5

0VC

3361

2113

741F

251n

F 5

0VC

3362

2113

740F

215.

6pF

5%

50V

C33

6321

1374

0F47

68pF

5%

50V

C33

6421

1374

0F31

15pF

5%

50V

C33

6521

1374

1F25

1nF

50V

C34

0021

1374

0F63

330p

F 5

% 5

0VC

3401

2113

740F

6333

0pF

5%

50V

C34

0221

1374

3E07

22nF

16V

C34

0321

1374

0F39

33pF

5%

50V

C34

0421

1374

0F39

33pF

5%

50V

C34

0521

1374

0F67

470p

F 5

% 5

0VC

3406

2113

740F

6747

0pF

5%

50V

C34

1021

1374

3E07

22nF

16V

C34

1121

1374

3E07

22nF

16V

C34

1221

1374

0F63

330p

F 5

% 5

0VC

3414

2113

740F

6333

0pF

5%

50V

C34

1521

1374

3E07

22nF

16V

C34

1621

1374

0F63

330p

F 5

% 5

0VC

3417

2113

740F

4347

pF 5

% 5

0VC

3418

2113

740F

3933

pF 5

% 5

0VC

3419

2113

740F

5718

0pF

5%

50V

C34

2021

1374

0F57

180p

F 5

% 5

0VC

3421

2113

741A

5733

nF 5

0VC

3422

2113

740A

6733

0pF

5%

50V

C34

2323

1104

9A08

TA

NT

CP

1uF

10%

35V

C34

2421

1374

0F67

470p

F 5

% 5

0VC

3425

2113

743E

0722

nF 1

6VC

3426

2113

740F

6333

0pF

5%

50V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C34

2721

1374

1F33

2.2n

F 5

0VC

3428

2113

741F

332.

2nF

50V

C34

3121

1107

8B34

HQ

47p

F 5

%C

3433

2111

078B

36H

Q 5

6pF

5%

C34

3421

1374

1A45

10nF

50V

C34

3521

1374

0A67

330p

F 5

% 5

0VC

3436

2311

049A

45TA

NT

CP

10u

F 1

0% 3

5VC

3437

2113

741A

5733

nF 5

0VC

3438

2111

078B

59H

Q 4

70pF

5%

C34

3921

1107

8B59

HQ

470

pF 5

%C

3440

2113

741F

251n

F 5

0VC

3441

2111

078B

47H

Q 1

50pF

5%

C34

4221

1107

8B47

HQ

150

pF 5

%C

3445

2111

078B

21H

Q 2

0pF

5%

C34

4621

1107

8B42

HQ

100

pF 5

%C

3447

2111

078B

19H

Q 1

6pF

5%

C34

4821

1107

8B44

HQ

120

pF 5

%C

3449

2111

078B

44H

Q 1

20pF

5%

C34

5021

1374

0F67

470p

F 5

% 5

0VC

3451

2113

741F

251n

F 5

0VC

3452

2113

740F

2912

pF 5

% 5

0VC

3453

2113

740F

6747

0pF

5%

50V

C34

7121

1374

3E07

22nF

16V

C34

7221

1107

8B53

HQ

270

pF 5

%C

3473

2111

078B

53H

Q 2

70pF

5%

C34

7421

1374

0F59

220p

F 5

% 5

0VC

3475

2113

740F

236.

8pF

5%

50V

C34

9121

1107

8B18

HQ

15p

F 5

%C

3492

2111

078B

38H

Q 6

8pF

5%

C34

9321

1107

8B09

HQ

6.8

pF 5

%C

3494

2111

078B

16H

Q 1

3pF

5%

C34

9521

1107

8B01

HQ

3.3

pF 5

%C

3496

2111

078B

31H

Q 3

6pF

5%

C34

9821

1107

8B16

HQ

13p

F 5

%C

3499

2111

078B

19H

Q 1

6pF

5%

C35

0121

1374

1F33

2.2n

F 5

0VC

3502

2113

741F

332.

2nF

50V

C35

0321

1374

0F67

470p

F 5

% 5

0VC

3504

2113

741F

4910

nF 5

0VC

3505

2311

049A

07TA

NT

CP

1uF

10%

16V

C35

0621

1374

1F33

2.2n

F 5

0V X

7RC

3507

2113

740F

5110

0pF

5%

50V

C35

0821

1374

0F67

470p

F 5

% 5

0VC

3510

2113

740F

6747

0pF

5%

50V

D30

0048

1383

3C02

DU

AL

SO

T M

MB

D61

00D

3001

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D30

0348

8015

4K03

DU

AL

SC

HO

TT

KY

SO

T23

D30

0448

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3011

4880

142L

01P

IND

3031

4886

143B

01M

IXE

R D

IOD

E C

RO

SS

OV

ER

D31

0148

8015

4K03

DIO

DE

DU

AL

SC

HO

TT

KY

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-11

D32

0148

0223

3J09

TR

IPLE

SO

T14

3-R

HD

3221

4880

236E

05C

HIP

SC

HO

TT

KY

D33

4148

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3361

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D33

6248

6282

4C01

VA

RA

CT

OR

CH

IPD

3401

4813

833C

02D

UA

L S

OT

MM

BD

6100

D34

5148

8023

6E05

CH

IP S

CH

OT

TK

YD

3471

4802

482J

02P

IN M

A/C

OM

D34

7248

0248

2J02

PIN

MA

/CO

MF

L310

191

8011

2R16

44.8

5 M

HZ

XTA

L F

LTR

80d

BF

L310

291

8011

2R16

44.8

5 M

HZ

XTA

L F

LTR

80d

BF

L311

191

8046

9V03

CE

R F

LTR

6E

L 45

5 K

HZ

S

MD

FL3

112

9180

469V

06C

ER

FLT

R 6

EL

455

KH

Z

SM

DF

L311

391

8046

8V04

CE

R F

LTR

4E

L 45

5 K

HZ

S

MD

FL3

114

9180

468V

06C

ER

FLT

R 4

EL

455

KH

Z

SM

DJ3

401

0986

166B

02R

F C

ON

N M

INI U

HF

L300

224

6258

7T23

CO

IL C

HIP

470

nHL3

031

2462

587T

24C

OIL

CH

IP 5

60nH

L303

224

6258

7T17

CO

IL C

HIP

150

nHL3

101

2462

587T

25C

OIL

CH

IP 6

20nH

L311

124

6258

7T25

CO

IL C

HIP

620

nHL3

112

2462

587T

25C

OIL

CH

IP 6

20nH

L320

124

6258

7Q42

IND

CH

IP 3

90nH

10%

L323

124

6258

7Q20

IND

CH

IP 2

.2uH

20%

L330

124

6258

7N44

CH

IP IN

D 1

8 N

H 5

%L3

302

2462

587N

53C

HIP

IND

100

nH

5%

L331

724

6258

7V28

CH

IP IN

D 3

3 N

H 5

%L3

318

2462

587V

34IN

D C

HIP

100

nH 5

%L3

331

2462

587V

32C

HIP

IND

68N

H 5

%L3

332

2462

587V

15IN

D C

HIP

100

nH 1

0%L3

333

2462

587Q

47IN

D C

HIP

1uH

10%

L334

124

8456

2T13

MIN

I-S

PR

ING

AW

IND

8N

H

2%L3

343

2462

587N

56C

OIL

CH

IP 1

80nH

5%

L334

424

6258

7N68

CH

IP IN

D 1

uH

5%

L334

524

6258

7N68

CH

IP IN

D 1

uH

5%

L334

624

8456

2T18

MIN

I-S

PR

ING

AW

IND

35

.5N

H 2

%L3

351

2462

587N

68C

HIP

IND

1 u

H 5

%L3

361

2462

587N

50C

HIP

IND

56

nH 5

%L3

362

2462

587N

51C

HIP

IND

68

nH 5

%L3

363

2462

587N

50C

HIP

IND

56

nH 5

%L3

364

2462

587N

68C

HIP

IND

1 u

H 5

%L3

401

2460

591A

01S

QU

AR

E C

OIL

4.2

2nH

3T

L340

224

8465

7R01

Fer

rite

Bea

dL3

403

2462

587T

13C

OIL

CH

IP 6

8nH

L341

124

6258

7T13

CO

IL C

HIP

68n

H

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

L341

224

6258

7X43

IND

CH

IP L

O-P

RO

15.

0L3

413

2460

591B

04S

QU

AR

E C

OIL

11.

03nH

4T

L341

424

6059

1A11

SQ

UA

RE

CO

IL 7

.66n

H 3

TL3

421

2484

657R

01F

errit

e B

ead

L342

224

6059

1C23

SQ

UA

RE

CO

IL 1

6nH

3T

L343

624

8465

7R01

Fer

rite

Bea

dL3

437

2460

592A

01C

OIL

AW

17n

H 2

TL3

443

2460

591X

02C

OIL

SQ

UA

RE

25n

HL3

471

2462

587X

69IN

D C

HIP

1.2

uH 5

%L3

472

2460

592B

01C

OIL

AW

51n

H 4

TL3

491

2460

592B

01C

OIL

AW

51n

H 4

TL3

492

2460

592B

01C

OIL

AW

51n

H 4

TL3

493

2460

592B

01C

OIL

AW

51n

H 4

TM

3421

2686

201B

01H

EA

T S

PR

EA

DE

RQ

3001

4813

827A

07T

ST

R N

PN

SM

L S

IG M

MB

R9

Q30

0248

1382

4A17

TS

TR

PN

P 4

0V .2

A B

=10

0-Q

3021

4805

921T

02T

ST

R D

UA

L R

OH

M F

MC

2Q

3101

4813

827A

07T

ST

R N

PN

SM

L S

IG M

MB

R9

Q31

0248

1382

7A07

TS

TR

NP

N S

ML

SIG

MM

BR

9Q

3141

4813

824A

10T

ST

R N

PN

40V

.2A

B=

50-1

50Q

3151

4880

048M

01T

ST

R N

PN

DIG

47k

/47k

Q31

5248

8004

8M01

TS

TR

NP

N D

IG 4

7k/4

7kQ

3221

4880

048M

01T

ST

R N

PN

DIG

47k

/47k

Q33

0148

1382

7A07

TS

TR

NP

N S

ML

SIG

MM

BR

9Q

3303

4802

245J

50T

ST

R D

UA

L N

PN

/PN

P

UM

C5N

Q33

0448

0521

8N63

RF

TR

AN

S S

OT

323

B

FQ

67W

Q34

1148

0592

1T02

DU

AL

RO

HM

FM

C2

RH

Q34

2148

0224

5J55

MR

F15

07Q

3422

4880

048M

01N

PN

DIG

47k

/47k

Q34

4148

8613

6B01

LDM

OS

PW

R T

ST

R

MR

F15

65 M

RF

1550

Q34

4248

8004

8M01

NP

N D

IG 4

7k/4

7kQ

3471

4880

048M

01N

PN

DIG

47k

/47k

Q34

7248

0512

8M27

PN

P S

OT

89 B

SR

33 L

HR

3000

0662

057A

531k

5 1/

16W

5%

R30

0106

6205

7A97

100k

1/1

6WR

3002

0662

057A

4356

0 1/

16W

5%

R30

0306

6205

7A49

1k 1

/16W

5%

R30

0406

6205

7A53

1k5

1/16

W 5

%R

3006

0662

057A

7310

k 1/

16W

5%

R30

0906

6205

7A97

100k

1/1

6WR

3010

0662

057A

4568

0 O

HM

S 5

%R

3011

0662

057A

654k

7 1/

16W

5%

R30

1206

6205

7A49

1k 1

/16W

5%

R30

1306

6205

7A61

3k3

1/16

W 5

%R

3014

0662

057A

1851

1/1

6W 5

%R

3015

0662

057A

0110

1/1

6W 5

%R

3016

0662

057A

0110

1/1

6W 5

%R

3018

0662

057A

3322

0 1/

16W

5%

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

R30

1906

6205

7A89

47k

1/16

W 5

%R

3021

0662

057A

4356

0 1/

16W

5%

R30

2406

6205

7A39

390

1/16

W 5

%R

3025

0662

057A

531k

5 1/

16W

5%

R30

2606

6205

7A73

10k

1/16

W 5

%R

3027

0662

057A

7310

k 1/

16W

5%

R30

2806

6205

7A39

390

1/16

W 5

%R

3031

0662

057A

1851

1/1

6W 5

%R

3033

0662

057B

470

1/16

W

R31

0106

6205

7A75

12k

1/16

W 5

%R

3102

0662

057A

0110

1/1

6W 5

%R

3105

0662

057A

2510

0 1/

16W

5%

R31

0606

6205

7A83

27k

1/16

W 5

%R

3107

0662

057A

696k

8 1/

16W

5%

R31

0806

6205

7A44

620

OH

MS

5%

R31

1106

6205

7A75

12k

1/16

W 5

%

R31

1206

6205

7A01

10 1

/16W

5%

R31

1306

6205

7A37

330

1/16

W 5

%R

3115

0662

057A

3939

0 1/

16W

5%

R31

1606

6205

7A37

330

1/16

W 5

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61

C06

62 C06

63

C06

71

C30

00

C30

01

C30

03C

3022

C30

23

C30

24

C30

25

C30

26

C30

29C

3030

C30

31

C30

33

C30

35

C30

36

C31

04

C31

10

C31

11C

3112

C31

13

C31

16

C31

21

C31

22C

312

3

C31

44

C31

46C

3147

C31

51

C31

52

C32

02

C32

03

C32

05C

3206

C32

07

C32

08

C32

09

C32

25

C32

28

C32

35

C32

41

C32

51

C32

61C32

62C

3263

C33

01

C33

02

C33

03

C33

04

C33

05

C33

06C

3311

C33

12

C3313

C33

14

C33

15

C33

16

C33

17

C33

18

C33

19

C33

31

C33

32

C33

33C

3334

C33

35

C33

48

C33

51 C3352

C33

55

C33

56

C34

02

C34

05C

3406

C34

13

C34

14C

3415

C34

16

C34

21

C3427

C34

36C

3437

C34

38

C34

39

C34

40

C34

50

C34

51

C34

52

C34

71

C34

75C

3491

C34

92

C34

93

C34

94

C34

95C

3496

C34

98

C34

99

C35

01

C35

02C

3503

C35

04

C3505

C35

06

C35

10

D0101

D01

51

D01

79

D0301

D0621

D0660D0661

D30

00

D3011

D31

01

D32

01

D32

61

D34

51

E02

71E

0272

E06

31

43 2

FL3

111

FL311343 2

FL3

115

12

J040

1

140

J055

1118

J055

2

L3025

L3111

L311

2

L323

1

L330

1

L330

2

L3311

L331

7

L331

8

L333

1

L333

2

L334

5L335

1

L340

2

L342

1

L343

6

L343

7

L349

1

L349

2

Q0151

Q01

71

Q01

73Q

0183

Q0271

Q06

41

Q0661

Q06

62Q

0663

Q3002

Q31

01Q

3102

Q3141

Q31

51

Q31

52

Q33

01

Q33

02 43

Q33

03

12

3

Q34

21

R01

07

R01

11R

0112

R01

13R

0117

R01

21

R01

51

R01

52

R01

71R

0172

R01

73

R01

74

R0175

R0176

R01

77

R0178

R01

79R

0183

R01

84

R02

01

R02

02R02

03

R02

04

R02

05

R02

06

R02

07

R0208

R02

65

R02

66R

0267

R02

73

R 0

274

R02

75R

027

6

R03

23

R03

24

R03

31

R03

32

R03

33

R03

35

R03

41

R03

42

R03

43

R03

44

R03

45

R03

46

R03

47

R04

01

R04

07R

0408

R04

09

R04

10

R04

12R

0441

R04

67

R04

68

R04

81

R04

82

R05

11

R05

12R

0525

R05

29

R05

30

R05

31R

0537

R05

41

R05

42

R05

91

R05

92

R05

93

R06

21

R06

41

R06

42R

0643

R06

61

R06

62R

0671

R06

72

R30

00

R30

06

R30

10

R30

11

R30

12

R30

18

R30

19

R30

21

R30

23R

3030R30

32

R30

33

R30

34

R30

35

R30

36

R31

02R

3104

R31

05

R31

07

R31

08R

3112

R31

13

R31

14

R31

15

R 3

116

R31

18

R31

33

R31

34

R31

41

R31

46

R31

47

R31

51

R31

52

R31

53

R31

54

R32

01

R32

03

R32

04

R32

06

R32

26R32

28

R32

41

R32

61R

3262

R32

63

R33

01

R33

02

R33

03

R33

04

R33

05

R33

06R

3307

R33

08R33

11

R33

12

R33

13R33

14

R3315

R33

16

R33

17

R33

18

R3319

R33

21

R33

23

R33

31

R33

43

R33

51 R3352

R3353

R3354

R33

55

R33

56

R34

11

R34

12

R34

13

R34

17

R34

18

R34

21

R3422

R3423

R34

28

R34

29

R34

40

R34

41

R34

42R

3443

R34

44

R34

45

R34

46

R34

50

R34

52

R34

54

R34

55

R34

57R

3474

R34

75

R35

01

R35

02R

3504

S34

40

TP

0101

TP

0102

TP

0103

TP

0104

TP

0151

TP

0221

TP

0222

TP

0492

TP

0497

TP

0530

TP

0661

TP

3001

TP

3201

TP

3202

TP

3402

TP

3403

TP

3404

TP

3405

TP

3406

14 5

8

U01

11

22 2187

1

1618 9

U01

41

2815 14

1

U03

01

U03

31

1 458

U03

41

U03

42

458 U

0351

145

8

U06

52

U0653

13725

13

11

120

10

14 5

8

U34

02

1

17

9

25

U35

01

VR0151

VR

0504

VR

0509

VR0537

VR

0541

VR

0601

VR0621

VR

0671

VR3471

432

Y31

01

643 1Y

3261

2 34

Y32

63

1

48

1

1

1

U01

22R

AM

U32

01F

RA

CN

U33

01V

CO

IC

ZW

G01

3039

8-A

8486172B07_0

C99

CNTL-REV-T7

PA-REV-T1

VCO-REV-T3

IF-REV-T5

FE-REV-T4

FRAC-T7

ZW

G01

3039

8-A

VH

F (

136-

174

MH

z) 1

-25W

848

6172

B07

Bo

tto

m S

ide

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-15

ZW

G01

3056

5-O

9180

469V

03

3.9V

DC

12.

5kH

z 0

VD

C20

/25k

Hz

5V

DC

0.75

VD

C

0.75

VD

C3V

DC

9180

469V

06

9180

469V

04

9180

468v

04

9180

468V

06

3VD

C6.

8K

R31

07

9V3

R31

351.

2K

390

1GND1GND2 2GND3 4

5GND4

3IN

6O

UT

R31

15

FL3

101

12R

16

R31

1727

K

Q31

02

Q31

51

680

R31

46

620n

HL3

111

620

R31

08

R31

18

6.8K

R31

1112

K

C31

01

5V_V

HF

_IF

_1

GND2 4

1IN

2O

UT

NU

2.2p

F

FL3

111

3

GND1

U31

15-1

CN

TL 13

12

VD

D

14

VS

S 7

DIS

CA

UD

IO_V

HF

_IF

_1

15K

R31

32

0.1u

FC

3144

120p

FC

3143

C31

39

C31

410.

1uF

0.1u

F

13

12

VD

D

14

VS

S 7

Q31

41

U31

11-1

CN

TL

R31

1633

0

10

9V3_

VH

F_I

F_2

3GN

D

1IN

2O

UT

R31

02

C31

10

27pF

FL3

113

0.1u

FC

3142

9.1p

F

IFIN

_VH

F_I

F_1

100

R31

04

NU

C31

1312GND2 4GND3

GND4 5

IN3

OU

T6

NU

DIS

CA

UD

IO

12R

16F

L310

2

GND1

1000

pF

R31

51

C31

00

C31

400.

1uF

10K

1110

VD

D

14 VS

S

7

3

14

VD

D 7

VS

S

U31

11-4

CN

TL

12

U31

15-2

5

CN

TL

4

Q31

52C

3152

.01u

F

.01u

FC

3151

R31

338.

2K

4700

pFC

3146

27K

R31

06

C31

12

390

R31

41

82pF

10R

3112

1.8K

R31

42

R31

5410

K

C31

22

.039

uF

Q31

01

6 VC

C33

0R

3113

20MIXOUT4 OSCIN

3OSCOUT

10 QUADIN

1 RFIN

2RFIN_DEC

5RSSIOUT

9 RSSI_FEED

15


19 IFAMP_DEC1

17IFA

MP

_DE

C2


SA

616

U31

01

8AUDIOOUT

7 AUDIO_FEED

GND

51

44.3

95M

Hz

12R

17Y

3101

2G

ND

4G

ND

1

3O

UT

1IN

R31

30

C31

3630

pF

C31

35

33pF

12K

R31

01

R31

47

12K

C31

3310

uF

C31

15

100

R31

05

22pF

620n

HL3

100

0.1u

F

NU

C31

37.0

39uF

C31

34

455K

Hz

3

21

BW

SE

LEC

T_V

HF

_IF

_1 BW

SE

LEC

T

45B

02

Y31

02

C31

03

33pF

C31

320.

1uF

10K

R31

52

0.1u

FC

3111

U31

15-3

6CN

TL

89

14 VD

D 7VS

S

18pF

C31

14L3

112

620n

H

9V3_

VH

F_I

F_1

5V

D31

01

RS

SI_

VH

F_I

F_1

OU

T

.039

uFC

3123

FL3

112

3

GND1

GND2

4

1IN

2

R31

1410

0

R31

34

10K

NU

2.4K

R31

44

U31

11-2

5

CN

TL

43

14 VD

D 7

VS

S

3.3K

R31

45

C31

45

C31

470.

1uF

620n

HL3

101

0.1u

F22

0pF

C31

48

NU

10V

DD

14 VS

S

7

NU

1pF

C31

31

U31

15-4

CN

TL

12

11

C31

210.

1uF

FL3

115

GND1

34

GND2

IN1

OU

T2

15pF

C31

02

NU

U31

11-3

6CN

TL

89

14

VD

D

7VS

S

3G

ND

1IN

2O

UT

RS

SI

C31

16

FL3

114

0.1u

F0.

1uF

R31

53

C31

04

5V

10K

5V

9V3

9V3

9V3

9V3

9V3

5V

9V3

5V

9V3

0R

3123

1uH

NU

L312

4

33pF

C31

24820

R31

24

VH

F (

136-

174

MH

z) IF

4-16

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

0VD

C5V

DC

5VD

C

(SO

UR

CE

)

-2 to

+7d

Bm

13.3

0VD

C6.

83V

DC

4.52

VD

C (

R)

+1d

Bm

0VD

C (

R)

4.95

VD

C (

R)

2.90

VD

C3.

42V

DC

3.63

VD

C

2.5V

DC

1.1-

4.1V

DC

0VD

C (

T)

2.62

VD

C (

T)

4.91

VD

C (

T)

Tem

p.C

omp.

Xta

l

Ref

.Osz

.

11.2

8VD

C

4.97

VD

C

2.5-

11V

DC

5VD

C (

LOC

KE

D)

0VD

C (

UN

LOC

KE

D)

R32

03

A1

5A

2

4A

3

K1

1K

22

K3

3

47

D32

01

6

47K

NU

TR

BL3

232

2.2u

HN

U

R32

28

C32

31

C32

25

.01u

F

L320

139

0nH

0.1u

F

C32

02.0

1uF

100

R32

23

C32

29

D32

21

0.1u

F

.047

uF

CLK

C32

51

C32

07

22pF

NU

47K

VC

OB

IAS

_2

R32

25

C32

268.

2pF

MO

DIN

_VH

F_F

N_1

TP

3201

R32

52

VC

OB

IAS

_1_V

HF

_FN

_1

330K

16_8

MH

z_V

HF

_FN

_1

PR

ES

C_V

HF

_FN

_1

R32

420

100

R32

41

VS

F_V

HF

_FN

_1

DA

TA

VC

OM

OD

_VH

F_F

N_1

CS

X_V

HF

_FN

_1

100p

F

C32

27

22pF NU

CS

X

IN_5

V_R

F_R

EG

_VH

F_F

N_1

C32

40

NU

1G

ND

4G

ND

1

3O

UT

6IN

16.8

MH

z75

Z04

Y32

61

100K

R32

27

0.1u

FC

3254

C32

08

0.1u

F

NU

.01u

FC

3232

47K

R32

26

PR

ES

C

C32

142.

2uF

C32

210.

1uF

1uF

C32

24

C32

630.

1uF

VM

ULT

11514

VM

ULT

212

VM

ULT

311

VM

ULT

4

VRO 13

25

WA

RP

23X

TA

L1X

TA

L224

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

47

VC

P

31N

C3

44PD_GND

PD_VDD 5

PR

EIN

32


35P

VR

EF

18R

EF

SE

L45

IAD

AP

T

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN41

MO

DO

UT

17N

C1

29N

C2

39B

IAS

2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6 36DVDD

19F

RE

FO

UT

46A

DA

PT

SW

22 AGND

48A

UX

1

1A

UX

22

AU

X3

3A

UX

4

20AVDD

40B

IAS

1

VC

OB

IAS

_1

63A

27

U32

01

47

R32

01

VS

F

C32

22

0

R32

11

0.1u

F

L323

1

0.1u

FC

3211

TP

3202

2.2u

H

C32

4322

0pF

16_8

MH

z

VD

DA

VD

DA

_VH

F_F

N_1

VC

OB

IAS

_2_V

HF

_FN

_1

0.1u

FC

3209

C32

4622

0pF

NU

C32

0610

uF

5V_V

HF

_FN

_2

150K

R32

06

Q32

21

R32

5118

0K

.01u

F

C32

280.

1uF

C32

35

2.2u

FC

3210

VC

TR

L_V

HF

_FN

_1

R32

04

LOC

K_V

HF

_FN

_1

47

1uF

C32

23

NU

220p

F

R32

62 NU

C32

45

BW

SE

LEC

T

6.2K

C32

15

R32

24

47K

C32

13

2.2u

F

1G

ND

5IN

2N

R

4O

UT

3S

D

2.2u

F

VCC

4

VC

NT

L

1

AD

P33

00U

3211

6E

RR

Y32

63

TT

S05

V16

.8M

Hz

GND

2

OU

T 3

MO

DIN

VC

TR

L

C32

55

DA

TA

_VH

F_F

N_1

220p

FC

3242

2.2u

F

5V_V

HF

_FN

_1

.01u

F

R32

2268

0

TR

B_V

HF

_FN

_1

C32

05

C32

6233

0pF

NU

NU

VC

OM

OD

C32

4156

pF

R32

6147

K

2.2u

FC

3233

R32

21

CLK

_VH

F_F

N_1

C32

52

390

1000

pF

.01u

FC

3234

C32

534.

7uF

NU

IN_5

V_R

F_R

EG

5V

D32

61C

3261

NU

LOC

K

C32

44

39pF

BW

SE

LEC

T_V

HF

_FN

_1

220p

F

C32

03

4,7k

.01u

F

NC

5V

5V

R32

63

NC

NC

NC

NC

NC

NCNC

NC

NC

NC

VD

DA

VD

DA

NC

NC

NC

.022

uFC

3212

R32

0210

ME

G

NU

10pF

C32

47

In c

ase

Y32

61 is

use

d in

stea

d of

Y32

63,

repl

acem

ent o

f the

follo

win

g pa

rts

req

uire

s

new

tem

pera

ture

com

pens

atio

n of

the

freq

uenc

y:

Y32

61, U

3201

, R32

61, R

3262

, C32

62, D

3261

ZW

G01

3056

4-O

VH

F (

136-

174

MH

z) F

RA

CN

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-17

VH

F P

CB

848

6172

B07

Par

ts L

ist

1-25

W

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C30

0021

1374

1F37

3.3n

F 5

0VC

3001

2113

740F

194.

7pF

5%

C30

0221

1374

0F26

9.1p

F 5

%C

3003

2113

741F

373.

3nF

50V

C30

0421

1374

0F45

56pF

5%

C30

0521

1374

0F51

100p

F 5

%C

3006

2113

740F

4556

pF 5

%C

3007

2113

741F

373.

3nF

50V

C30

0821

1374

1F25

1nF

50V

C30

0921

1374

1F13

330p

F 5

0VC

3010

2113

741F

1333

0pF

50V

C30

1121

1374

1F37

3.3n

F 5

0VC

3012

2113

741F

251n

F 5

0VC

3013

2113

740F

4556

pF 5

%C

3014

2113

740F

247.

5pF

5%

C30

1521

1374

0F45

56pF

5%

C30

1621

1374

0F51

100p

F 5

% 5

0VC

3017

2113

740F

4243

pF 5

% 5

0VC

3019

2113

741F

251n

F 5

0VC

3020

2113

741F

251n

F 5

0VC

3021

2113

740F

5312

0pF

5%

50V

C30

2221

1374

1F49

10nF

50V

C30

2621

1374

3E20

100n

F 1

6VC

3027

2113

741F

4910

nF 5

0VC

3028

2113

741F

4910

nF 5

0VC

3030

2113

741F

251n

F 5

0VC

3033

2113

740F

205.

1pF

5%

50V

C30

3421

1374

0F49

82pF

5%

50V

C30

3521

1374

0F33

18pF

5%

50V

C30

3621

1374

1F25

1nF

50V

C31

0021

1374

1F25

1nF

50V

C31

0221

1374

0F31

15pF

5%

50V

C31

0321

1374

0F39

33pF

5%

50V

C31

0421

1374

3E20

100n

F 1

6VC

3110

2113

740F

3727

pF 5

% 5

0VC

3111

2113

743E

2010

0nF

16V

C31

1221

1374

0F49

82pF

5%

50V

C31

1421

1374

0F33

18pF

5%

50V

C31

1521

1374

0F35

22pF

5%

50V

C31

1621

1374

3E20

100n

F 1

6VC

3121

2113

743E

2010

0nF

16V

C31

2221

1374

3E11

39nF

10%

C31

2321

1374

3E11

39nF

10%

C31

2421

1374

0L30

33pF

2%

C31

3221

1374

3E20

100n

F 1

6VC

3133

2311

049A

57TA

NT

CP

10u

F 1

0% 1

6VC

3134

2113

743E

2010

0nF

16V

C31

3521

1374

0L30

33pF

2%

C31

3621

1374

0L29

30pF

2%

C31

3721

1374

3E11

39nF

10%

C31

3921

1374

3E20

100n

F 1

6VC

3140

2113

743E

2010

0nF

16V

C31

4121

1374

3E20

100n

F 1

6VC

3142

2113

743E

2010

0nF

16V

C31

4321

1374

0F53

120p

F 5

% 5

0VC

3144

2113

743E

2010

0nF

16V

C31

4521

1374

3E20

100n

F 1

6VC

3146

2113

741F

414.

7nF

50V

C31

4721

1374

3E20

100n

F 1

6VC

3151

2113

741F

4910

nF 5

0VC

3152

2113

741F

4910

nF 5

0VC

3202

2113

741F

4910

nF 5

0VC

3203

2113

741F

4910

nF 5

0VC

3205

2113

741F

4910

nF 5

0VC

3206

2311

049A

57TA

NT

CP

10u

F 1

0% 1

6VC

3208

2113

743E

2010

0nF

16V

C32

0921

1374

3E20

100n

F 1

6VC

3210

2311

049A

40TA

NT

CP

2.2

uF 1

0% 1

0VC

3211

2113

743E

2010

0nF

16V

C32

1221

1374

3E07

22nF

16V

C33

1221

1374

3E07

22nF

16V

C32

1323

1104

9A40

TAN

T C

P 2

.2uF

10%

10V

C32

1423

1104

9A09

TAN

T C

P 2

.2uF

10%

20V

C32

1523

1104

9A09

TAN

T C

P 2

.2uF

10%

20V

C32

2121

1374

3E20

100n

F 1

6VC

3222

2113

743E

2010

0nF

16V

C32

2408

8242

2W23

FIL

M S

M 1

.0uF

15V

5%

C32

2521

1374

3E20

100n

F 1

6VC

3226

2113

740F

258.

2pF

5%

50V

C32

2721

1374

0F51

100p

F 5

% 5

0VC

3228

2113

743E

2010

0nF

16V

C32

2921

1374

3E12

47nF

10%

C32

3121

1374

1F49

10nF

50V

C32

3221

1374

1F49

10nF

50V

C32

3323

1104

9A40

TAN

T C

P 2

.2uF

10%

C32

3421

1374

1F49

10nF

50V

C32

3521

1374

1F49

10nF

50V

C32

4221

1374

0F59

220p

F 5

% 5

0VC

3243

2113

740F

5922

0pF

5%

50V

C32

4421

1374

0F59

220p

F 5

% 5

0VC

3245

2113

740F

5922

0pF

5%

50V

C32

4621

1374

0F59

220p

F 5

% 5

0VC

3247

2113

740F

2710

pF 5

% 5

0VC

3251

2113

743E

2010

0nF

16V

C32

5221

1374

1F25

1nF

50V

C32

5323

1104

9A56

TAN

T C

P 4

.7uF

20%

10V

C32

5421

1374

3E20

100n

F 1

6VC

3255

2311

049A

40TA

NT

CP

2.2

uF 1

0% 1

0VC

3263

2113

743E

2010

0nF

16V

C33

0221

1374

0F23

6.8p

F 5

% 5

0VC

3303

2113

741F

4910

nF 5

0V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C33

0621

1374

0F20

5.1p

F 5

% 5

0VC

3311

2113

743E

0722

nF 1

6VC

3314

2113

740F

236.

8pF

5%

50V

C33

1521

1374

0F31

15pF

5%

50V

C33

1621

1374

0F15

3.3p

F 5

% 5

0VC

3317

2113

740F

3933

pF 5

% 5

0VC

3318

2113

740F

215.

6pF

5%

50V

C33

1921

1374

1F25

1nF

50V

C33

2421

1374

1F49

10nF

50V

C33

3221

1374

3E20

100n

F 1

6VC

3333

2113

743E

2010

0nF

16V

C33

3421

1374

3E07

22nF

16V

C33

3521

1374

1F49

10nF

50V

C33

3621

1374

1F49

10nF

50V

C33

3721

1374

3E20

100n

F 1

6VC

3341

2113

741F

251n

F 5

0VC

3342

2113

740L

053.

0pF

+-0

.1pF

C33

4421

1374

0F09

1.8p

F 5

% 5

0VC

3345

2113

740L

2520

pF +

-0.2

5pF

C33

4621

1374

1F49

10nF

50V

C33

4721

1374

1F49

10nF

50V

C33

4821

1374

1F49

10nF

50V

C33

5121

1374

1F49

10nF

50V

C33

5221

1374

3E07

22nF

16V

C33

5521

1374

1F49

10nF

50V

C33

5621

1374

3E07

22nF

16V

C33

5721

1374

0F24

7.5p

F 5

% 5

0VC

3361

2113

741F

251n

F 5

0VC

3362

2113

740F

215.

6pF

5%

50V

C33

6321

1374

0F47

68pF

5%

50V

C33

6421

1374

0F31

15pF

5%

50V

C33

6521

1374

1F25

1nF

50V

C34

0021

1374

0F63

330p

F 5

% 5

0VC

3401

2113

740F

6333

0pF

5%

50V

C34

0221

1374

3E07

22nF

16V

C34

0321

1374

0F39

33pF

5%

50V

C34

0421

1374

0F39

33pF

5%

50V

C34

0521

1374

0F67

470p

F 5

% 5

0VC

3406

2113

740F

6747

0pF

5%

50V

C34

1021

1374

3E07

22nF

16V

C34

1121

1374

3E07

22nF

16V

C34

1221

1374

0F63

330p

F 5

% 5

0VC

3414

2113

740F

6333

0pF

5%

50V

C34

1521

1374

3E07

22nF

16V

C34

1621

1374

0F63

330p

F 5

% 5

0VC

3417

2113

740F

4347

pF 5

% 5

0VC

3418

2113

740F

3933

pF 5

% 5

0VC

3419

2113

740F

5718

0pF

5%

50V

C34

2021

1374

0F57

180p

F 5

% 5

0VC

3421

2113

741A

5733

nF 5

0VC

3422

2113

740A

6733

0pF

5%

50V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C34

2323

1104

9A08

TA

NT

CP

1uF

10%

35V

C34

2421

1374

0F67

470p

F 5

% 5

0VC

3425

2113

743E

0722

nF 1

6VC

3426

2113

740F

6333

0pF

5%

50V

C34

2721

1374

1F33

2.2n

F 5

0VC

3428

2113

741F

332.

2nF

50V

C34

3121

1107

8B34

HQ

47p

F 5

%C

3433

2111

078B

36H

Q 5

6pF

5%

C34

3421

1374

1A45

10nF

50V

C34

3521

1374

0A67

330p

F 5

% 5

0VC

3436

2311

049A

45TA

NT

CP

10u

F 1

0% 3

5VC

3437

2113

741A

5733

nF 5

0VC

3438

2111

078B

59H

Q 4

70pF

5%

C34

3921

1107

8B59

HQ

470

pF 5

%C

3440

2113

741F

251n

F 5

0VC

3441

2111

078B

47H

Q 1

50pF

5%

C34

4221

1107

8B47

HQ

150

pF 5

%C

3445

2111

078B

21H

Q 2

0pF

5%

C34

4621

1107

8B42

HQ

100

pF 5

%C

3447

2111

078B

19H

Q 1

6pF

5%

C34

4821

1107

8B44

HQ

120

pF 5

%C

3449

2111

078B

44H

Q 1

20pF

5%

C34

5021

1374

0F67

470p

F 5

% 5

0VC

3451

2113

741F

251n

F 5

0VC

3452

2113

740F

2912

pF 5

% 5

0VC

3453

2113

740F

6747

0pF

5%

50V

C34

7121

1374

3E07

22nF

16V

C34

7221

1107

8B53

HQ

270

pF 5

%C

3473

2111

078B

53H

Q 2

70pF

5%

C34

7421

1374

0F59

220p

F 5

% 5

0VC

3475

2113

740F

236.

8pF

5%

50V

C34

9121

1107

8B18

HQ

15p

F 5

%C

3492

2111

078B

38H

Q 6

8pF

5%

C34

9321

1107

8B09

HQ

6.8

pF 5

%C

3494

2111

078B

16H

Q 1

3pF

5%

C34

9521

1107

8B01

HQ

3.3

pF 5

%C

3496

2111

078B

31H

Q 3

6pF

5%

C34

9821

1107

8B16

HQ

13p

F 5

%C

3499

2111

078B

19H

Q 1

6pF

5%

C35

0121

1374

1F33

2.2n

F 5

0VC

3502

2113

741F

332.

2nF

50V

C35

0321

1374

0F67

470p

F 5

% 5

0VC

3504

2113

741F

4910

nF 5

0VC

3505

2311

049A

07TA

NT

CP

1uF

10%

16V

C35

0621

1374

1F33

2.2n

F 5

0V X

7RC

3507

2113

740F

5110

0pF

5%

50V

C35

0821

1374

0F67

470p

F 5

% 5

0VC

3510

2113

740F

6747

0pF

5%

50V

D30

0048

1383

3C02

DU

AL

SO

T M

MB

D61

00D

3001

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D30

0348

8015

4K03

DU

AL

SC

HO

TT

KY

SO

T23

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

4-18

VH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

D30

0448

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3011

4880

142L

01P

IND

3031

4886

143B

01M

IXE

R D

IOD

E C

RO

SS

OV

ER

D31

0148

8015

4K03

DIO

DE

DU

AL

SC

HO

TT

KY

D32

0148

0223

3J09

TR

IPLE

SO

T14

3-R

HD

3221

4880

236E

05C

HIP

SC

HO

TT

KY

D33

4148

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3361

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D33

6248

6282

4C01

VA

RA

CT

OR

CH

IPD

3401

4813

833C

02D

UA

L S

OT

MM

BD

6100

D34

5148

8023

6E05

CH

IP S

CH

OT

TK

YD

3471

4802

482J

02P

IN M

A/C

OM

D34

7248

0248

2J02

PIN

MA

/CO

MF

L310

191

8011

2R16

44.8

5 M

HZ

CR

YS

TAL

FLT

R

80dB

FL3

102

9180

112R

1644

.85

MH

Z C

RY

STA

L F

LTR

80

dBF

L311

191

8046

9V03

CE

R F

LTR

6E

L 45

5 K

HZ

S

MD

FL3

112

9180

469V

06C

ER

FLT

R 6

EL

455

KH

Z

SM

DF

L311

391

8046

8V04

CE

R F

LTR

4E

L 45

5 K

HZ

S

MD

FL3

114

9180

468V

06C

ER

FLT

R 4

EL

455

KH

Z

SM

DJ3

401

0986

166B

02R

F C

ON

N M

INI U

HF

L300

224

6258

7T23

CO

IL C

HIP

470

nHL3

031

2462

587T

24C

OIL

CH

IP 5

60nH

L303

224

6258

7T17

CO

IL C

HIP

150

nHL3

101

2462

587T

25C

OIL

CH

IP 6

20nH

L311

124

6258

7T25

CO

IL C

HIP

620

nHL3

112

2462

587T

25C

OIL

CH

IP 6

20nH

L312

424

6258

7N68

1uH

L320

124

6258

7Q42

IND

CH

IP 3

90nH

10%

L323

124

6258

7Q20

IND

CH

IP 2

.2uH

20%

L330

124

6258

7N44

CH

IP IN

D 1

8 N

H 5

%L3

302

2462

587N

53C

HIP

IND

100

nH

5%

L331

724

6258

7V28

CH

IP IN

D 3

3 N

H 5

%L3

318

2462

587V

34IN

D C

HIP

100

nH 5

%L3

331

2462

587V

32C

HIP

IND

68N

H 5

%L3

332

2462

587V

15IN

D C

HIP

100

nH 1

0%L3

333

2462

587Q

47IN

D C

HIP

1uH

10%

L334

124

8456

2T13

MIN

I-S

PR

ING

AW

IND

8N

H

2%L3

343

2462

587N

56C

OIL

CH

IP 1

80nH

5%

L334

424

6258

7N68

CH

IP IN

D 1

uH

5%

L334

524

6258

7N68

CH

IP IN

D 1

uH

5%

L334

624

8456

2T18

MIN

I-S

PR

ING

AW

IND

35

.5N

H 2

%L3

351

2462

587N

68C

HIP

IND

1 u

H 5

%L3

361

2462

587N

50C

HIP

IND

56

nH 5

%

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

L336

224

6258

7N51

CH

IP IN

D 6

8 nH

5%

L336

324

6258

7N50

CH

IP IN

D 5

6 nH

5%

L336

424

6258

7N68

CH

IP IN

D 1

uH

5%

L340

124

6059

1A01

SQ

UA

RE

CO

IL 4

.22n

H 3

TL3

402

2484

657R

01F

errit

e B

ead

L340

324

6258

7T13

CO

IL C

HIP

68n

HL3

411

2462

587T

13C

OIL

CH

IP 6

8nH

L341

224

6258

7X43

IND

CH

IP L

O-P

RO

15.

0L3

413

2460

591B

04S

QU

AR

E C

OIL

11.

03nH

4T

L341

424

6059

1A11

SQ

UA

RE

CO

IL 7

.66n

H 3

TL3

421

2484

657R

01F

errit

e B

ead

L342

224

6059

1C23

SQ

UA

RE

CO

IL 1

6nH

3T

L343

624

8465

7R01

Fer

rite

Bea

dL3

437

2460

592A

01C

OIL

AW

17n

H 2

TL3

443

2460

591X

02C

OIL

SQ

UA

RE

25n

HL3

471

2462

587X

69IN

D C

HIP

1.2

uH 5

%L3

472

2460

592B

01C

OIL

AW

51n

H 4

TL3

491

2460

592B

01C

OIL

AW

51n

H 4

TL3

492

2460

592B

01C

OIL

AW

51n

H 4

TL3

493

2460

592B

01C

OIL

AW

51n

H 4

TM

3421

2686

201B

01H

EA

T S

PR

EA

DE

RQ

3001

4813

827A

07T

ST

R N

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UHF (403-470MHz)

Service Information


i

Table of Contents




1.0 Introduction ..........................................................................................................2-12.0 UHF (403-470 MHz) Receiver .............................................................................2-1


3.0 UHF (403-470 MHz) Transmitter Power Amplifier (PA) 25 W..............................2-33.1 First Power Controlled Stage..........................................................................2-43.2 Power Controlled Driver Stage .......................................................................2-43.3 Final Stage .....................................................................................................2-43.4 Directional Coupler .........................................................................................2-53.5 Antenna Switch...............................................................................................2-53.6 Harmonic Filter ...............................................................................................2-53.7 Power Control.................................................................................................2-5

4.0 UHF (403-470 MHz) Frequency Synthesis ..........................................................2-64.1 Reference Oscillator .......................................................................................2-64.2 Fractional-N Synthesizer ................................................................................2-74.3 Voltage Controlled Oscillator (VCO)...............................................................2-84.4 Synthesizer Operation ....................................................................................2-9



ii

Section 4 UHF PCB/Schematics/Parts Lists


2.0 UHF 1-25W PCBs / Schematics / Parts Lists ......................................................4-3UHF (403-470 MHz) 1-25W 8485670Z02 Top Side ...............................................4-3UHF (403-470 MHz) 1-25W 8485670Z02 Bottom Side.........................................4-4UHF (403-470 MHz) Power Amplifier 1 - 25W .......................................................4-5UHF (403-470 MHz) FRACN..................................................................................4-6UHF (403-470 MHz) Voltage Controlled Oscillator.................................................4-7UHF (403-470 MHz) Receiver Front End ...............................................................4-8UHF (403-470 MHz) IF ...........................................................................................4-9UHF PCB 8485670Z02 Parts List 1-25W.............................................................4-10UHF (403-470 MHz) 1-25W 8485670Z03 Top Side .............................................4-13UHF (403-470 MHz) 1-25W 8485670Z03 Bottom Side.......................................4-14UHF (403-470 MHz) Power Amplifier 1 - 25W .....................................................4-15UHF (403-470 MHz) FRACN................................................................................4-16UHF (403-470 MHz) Voltage Controlled Oscillator...............................................4-17UHF (403-470 MHz) Receiver Front End .............................................................4-18UHF (403-470 MHz) IF .........................................................................................4-19UHF PCB 8485670Z03 Parts List 1-25W.............................................................4-20

1-1

Section 1



GM Series, UHF Band 1, 403-470 MHzModel Description

AZM25RHC9AA1 GM328 403-470 MHz 1-25W

AZM25RHF9AA5 GM338 403-470 MHz 1-25W

AZM25RHN9AA8 GM398 403-470 MHz 1-25W

Item Description




X X IMUE6021_ Tanapa WM 403-470 MHz 1-25W

X IMUE6039_ Tanapa WM 403-470 MHz 1-25W

X X X RAE4151_ BNC 403-430 MHz, 1/4 Wave Roof Mount

X X X RAE4158_ BNC 406-420 MHz, 3.5dB Gain Roof Mount


X X X RAE4153_ BNC 450-470 MHz, 3.5dB Gain Roof Mount

X X X RAE4154_ BNC 450-470 MHz, 5dB Gain Roof Mount










4128160





Weight: GM328/GM338 1400 g

Weight: GM398 1500 g

Sealing: Withstands rain testing per MIL STD 810 C/D/E and IP54

Shock and Vibration: Protection provided via impactresistant housing exceeding MIL STD 810-C/D/E

Dust, Salt & Fog: Protection provided via environment resistant housing exceeding MIL STD 810 C/D/E


Transmitter UHF

*Frequencies - Full Bandsplit UHF 403-470 MHz



±2.0 ppm

Power 1-25W


FM Hum & Noise-40 dB @ 12.5kHz-45 dB @ 20/25kHz



Audio Response (300 - 3000 Hz) +1 to -3 dB


<3% typical

Receiver UHF







Spurious Rejection (ETS)70 dB @ 12.5 kHz75 dB @ 20/25 kHz


13W External



-45 dB @ 20/25 kHz




+1 to -3 dB


Receiver UHF

2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and troubleshooting for the the associated Controller circuits refer to the Controller Section of this manual.

2.0 UHF (403-470 MHz) Receiver


The receiver is able to cover the UHF range from 403 to 470 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, high-IF, low-IF and receiver back-end . Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. Low-side first injection is used.

Figure 2-1 UHF Receiver Block Diagram

Demodulator

1. Crystal Filter

MixerVaractor Tuned Filter

RF AmpVaractor Tuned Filter


Antenna


from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT

2-2 UHF (403-470 MHz) Receiver

There are two 2-pole 44.85 MHz crystal filters in the high-IF section and 2 pairs of 455 kHz ceramic filters in the low-IF section to provide the required adjacent channel selectivity .The correct pair of ceramic filters for 12.5 or 25KHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.


The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuitry, before being applied to the receiver pre-selector filter (C4001, C4002, D4001 and associated components). The 2-pole pre-selector filter tuned by the varactor diodes D4001 and D4002 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U4501) in the Transmitter section. A dual hot carrier diode (D4003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q4003) with collector base feedback to stabilize gain, impedance, and intermodulation. The collector current of approximately 11-16 mA is drawn from the voltage 9V3 via L4003 and R4002. A switchable 3dB pad (R4066,R4007,R4063, R4064 and R4070), controlled via line FECTRL_2 and Q4004 stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The varactor diodes D4004 and D4005 are controlled by the same signal FECTRL_1, which controls the pre-selector filter. A following 1 dB pad (R4013 - R4015) stabilizes the output impedance and intermodulation performance.


The signal coming from the front-end is converted to the first IF (44.85 MHz) using a cross over quad diode mixer (D4051). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using low side injection via matching transformers T4051 and T4052. The injection signal (RXINJ) coming from the RX VCO buffer (Q4332) is filtered by the lowpass filter consisting of (L4053, L4054, C4053 - C4055) followed by a matching transformer T4052 and has a level of approximately 15dBm.

The mixer IF output signal (IF) from transformer T4501pin 2 is fed to the first two pole crystal filter FL3101. The filter output in turn is matched to the following IF amplifier.



UHF (403-470 MHz) Transmitter Power Amplifier (PA) 25 W 2-3


The 44.85 high IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the low IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The low IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters FL3112, FL3114 for 20/25 kHz channel spacing or FL3111,FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3103 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuitry).

A Received Signal Strength Indicator (RSSI) signal is available at U3101 pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the microprocessor (U0101 pin 63) and in addition is available at accessory connector J0501-15.

3.0 UHF (403-470 MHz) Transmitter Power Amplifier (PA) 25 W

The radio’s 25W PA is a three stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U4401) is adjustable, controlled by pin 4 of PCIC (U4501) via U4402-1. It is followed by an LDMOS stage (Q4421) and LDMOS final stage (Q4441).

Figure 2-2 UHF Transmitter Block Diagram


PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

PADriver

2-4 UHF (403-470 MHz) Transmitter Power Amplifier (PA) 25 W


The first stage (U4401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U4401 is controlled by a DC voltage applied to pin 1 from the op-amp U4402-1, pin 1. The control voltage simultaneously varies the bias of two FET stages within U4401. This biasing point determines the overall gain of U4401 and therefore its output drive level to Q4421, which in turn controls the output power of the PA.Op-amp U4402-1 monitors the drain current of U4401 via resistor R4444 and adjusts the bias voltage of U4401 so that the current remains constant. The PCIC (U4501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U4402-1 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q4442, which in turn switches off the biasing voltage to U4401.

Switch S5440 is a pressure pad with a conductive strip which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S5440 opens and the resulting high voltage level at the inverting inputs of the current control op-amps U4402-1 & 2 switches off the biasing of U4401 and Q4421. This prevents transmitter key up while the devices do not have proper thermal contact to the chassis.


The next stage is an LDMOS device (Q4421) providing a gain of 12dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The bias is set during transmit mode by the drain current control op-amp U4402-2, and fed to the gate of Q4421 via the resistive network R4429, R4418, R4415 and R4416.Op-amp U4402-2 monitors the drain current of U4421 via resistors R4424-27 and adjusts the bias voltage of Q4421 so that the current remains constant. The PCIC (U4501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U4402-2 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q4422, which in turn switches off the biasing voltage to Q4421.

3.3 Final Stage

The final stage is an LDMOS device (Q4441) providing a gain of 12dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set in transmit mode by the ASFIC and fed to the gate of Q4441 via the resistive network R4404, R4406, and R4431-2. This bias voltage is tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Global Tuner. Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via L4436 and L4437.A matching network consisting of C4441-49 and striplines transforms the impedance to 50 ohms and feeds the directional coupler.



The directional coupler is a microstrip printed circuit, which couples a small amount of the forward power delivered by Q4441. The coupled signal is rectified by D4451. The DC voltage is proportional to the RF output power and feeds the RFIN port of the PCIC (U4501 pin 1). The PCIC controls the gain of stages U4401 and Q4421 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

3.5 Antenna Switch

The antenna switch consists of two PIN diodes, D4471 and D4472. In the receive mode, both diodes are off. Signals applied at the antenna jack J4401 are routed, via the harmonic filter, through network L4472, C4474 and C4475, to the receiver input. In the transmit mode, K9V1 turns on Q4471 which enables current sink Q4472, set to 96 mA by R4473 and VR4471. This completes a DC path from PASUPVLTG, through L4437, D4471, L4472, D4472, L4471, R4474 and the current sink, to ground. Both diodes are forward biased into conduction. The transmitter RF from the directional coupler is routed via D4471 to the harmonic filter and antenna jack. D4472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L4472 is selected to appear as a broadband lambda/4 wave transmission line, making the short circuit presented by D4472 appear as an open circuit at the junction of D4472 and the receiver path.

3.6 Harmonic Filter

Components L4491-L4493 and L4472, C4491, C4496-98 form a Butterworth low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R4491 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.7 Power Control

The transmitter uses the Power Control IC (PCIC, U4501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the directional coupler and rectified, to provide a DC voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power.

The ASFIC (U0221) has internal digital to analog converters (DACs) which provide a reference voltage of the control loop to the PCIC via R4505. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuit.

The PCIC provides a DC output voltage at pin 4 (INT) which sets the drain current of the first (U4401) and second (Q4421) transmitter stage via current control op-amps U3402-1 and U3402-2. This adjusts the transmitter power output to the intended value. Variations in forward transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.

Capacitors C4502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels.

2-6 UHF (403-470 MHz) Frequency Synthesis

U4502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a DC voltage to the PCIC (TEMP, pin 30) proportional to temperature. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be reduced so as to reduce the transmitter temperature.

4.0 UHF (403-470 MHz) Frequency Synthesis

The synthesizer subsystem consists of the reference oscillator (Y4261 or Y4262), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U4201), and the Voltage Controlled Oscillator VCO.


The reference oscillator (Y4262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An Analogue to Digital (A/D) converter internal to U4201 (LVFRAC-N) and controlled by the microprocessor via serial interface (SRL) sets the voltage at the warp output of U4201 pin 25 to set the frequency of the oscillator. The output of the oscillator (pin 3 of Y4262) is applied to pin 23 (XTAL1) of U4201 via a RC series combination.

In applications where less frequency stability is required the oscillator inside U4201 is used along with an external crystal Y4261, varactor diode D4261, C4261, C4262 and R4262. In this case, Y4262, R4263, C4235 and C4251 are not used. When Y4262 is used, Y4261, D4261, C4261, C4262 and R4262 are not used, and C4263 is increased to 0.1 uF.

UHF (403-470 MHz) Frequency Synthesis 2-7


The LVFRAC-N synthesizer IC (U4201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balance attenuator to balance the high frequency analogue modulation and low frequency digital modulation, a 13V positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

Figure 2-3 UHF Synthesizer Block Diagram

A voltage of 5V applied to the super filter input (U4201 pin 30) supplies an output voltage of 4.5 VDC(VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R4322) and the synthesizer charge pump resistor network (R4251, R4252). The synthesizer supply voltage is provided by the 5V regulator U4211.




DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER




Figure 2-4 UHF VCO Block Diagram

The VCOBIC together with Fractional-N synthesizer (U4201) generates the required frequencies in both transmit and receive modes. The TRB line (U4301 pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables TX tank and TX output (pin 10), and a low enables RX tank and RX output (pin 8). A sample of the signal from the enabled output is routed from U4301 pin 12 (PRESC_OUT), via a low pass filter, to pin 32 of U4201 (PREIN).

A steering line voltage (VCTRL) between 3.0V and 10.0V at varactor diode CR4311 will tune the full TX frequency range (TXINJ) from 403 MHz to 470 MHz, and at varactor diodes CR4301, CR4302 and CR4303 will tune the full RX frequency range (RXINJ) from 358 MHz to 425 MHz. The tank circuits uses the Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q4301 is used in conjunction with the internal transistor for better side-band noise.

Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U4201 Pin28)

VCC Buffers

TX RF Injection

U4201 Pin 32

AUX3 (U4201 Pin 2)

Prescaler Out

Pin 12Pin 19Pin 20


U4301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U4201 Pin 28)

Rx-SW

Tx-SW

Vcc-Logic

(U4201 Pin 28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332


The external RX buffers (Q4332) are enabled by a high at U4201 pin 3 (AUX4) via transistor switch Q4333. In TX mode the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U4201 pin41) is applied modulation circuitry CR4321, R4321, R4322 and C4324, which modulates the TX VCO frequency via coupling capacitor C4321. Varactor CR4321 is biased for linearity from VSF.


The complete synthesizer subsystem comprises mainly of low voltage FRAC-N (LVFRACN) IC, Reference Oscillator (crystal oscillator with temperature compensation), charge pump circuitry, loop filter circuitry and DC supply. The output signal PRESC_OUT of the VCOBIC (U4301 pin 12) is fed to pin 32 of U4201 (PREIN) via a low pass filter (C4229, L4225) which attenuates harmonics and provides the correct level to close the synthesizer loop.The pre-scaler in the synthesizer (U4201) is basically a dual modulus pre-scaler with selectable divider ratios. This divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator (Y4261 or Y4262).The output signal of the phase detector is a pulsed DC signal which is routed to the charge pump. The charge pump outputs a current at pin 43 of U4201 (IOUT). The loop filter (which consists of R4221-R4223, C4221-C4225,L4221) transforms this current into a voltage that is applied to the varactor diodes CR4311 for transmit, CR4301, CR4302 & CR4303 for receive and alters the output frequency of the VCO .The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U4201-40) or BIAS 2 (U4201-39). The currents are set by the value of R4251 or R4252 respectively. The selection of the three different bias sources is done by software programming.To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer the magnitude of the loop current is increased by enabling the IADAPT (U4201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U4201-4). The LOCK (U4201-4) signal is routed to one of the µP´s ADCs input U101-56. From the voltage the µP determines whether LOCK is active. In order to modulate the PLL the two spot modulation method is utilized. Via pin 10 (MODIN) on U4201 the audio signal is applied to both the A/D converter (low freq path) as well as the balance attenuator (high freq path). The A/D converter converts the low frequency analogue modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U4201-41) and connected to the VCO modulation diode CR4321 via R4321, C4325.

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T4051?

RFSignal at C4015?

No

No

RFSignal at C4025?

No or

Check harmonic filterL4491-L4493, C4492, J4401

and ant. switchD4471, D4472, L4472.

Check filter between C4025 & C4009.

Check tuning voltage at R4060.


Istuning voltage

OK?

No

Yes

Check RF amp (Q4003) Stage.

Check filter between C4015 & T4051.

Yes

Check T4051, T4052, D4051, R4052, L4008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes

Trace IF signal from C3101 to

Q3101. Check for bad XTAL filter.

No

Yes IFsignal at Q3102

collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?


U4211 and U0641.

No

No

No

Check U4501.

Check varactor filter.

No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C4009?



Current increase

when keyed?

NO

YES

START



Antenna Switch D4471,D4472,Q4472,

VR3471,Q3471

>500mA & <4A>4A

<500mA


age at TP4402

>1V


NO

YES


Check PA Stages NO

YES


DC?


NO

YES


DC

Replace PCIC U4501

NO

YES

TP4404 9.1V DC



FGU

YES

NO

TP4403 >0.5V DC?

Replace PCIC U4501



NO

YES


DC?






Check PA Stages



>6

YES

DC Voltage at U4501

Pin 23 =0?

2-6


Pin 1?

YES

Pin 2Voltage 0.62 * Voltage at

Pin 1?


NOReplace U4401

YES

NODC


3 = 8.8V?

Check S4440, R4442 and R4443

YES

Pin 3 Voltage 0.51 * Voltage at

Pin 1?

NOReplace U4401

<2VDC

Voltage at U4402-2 Pin 7?

>6V




YES

DC Voltage at

U4402-2 Pin 5 <8.8V?



NO

Check Q4422

NO


2-6V





U4401




NO

0V

1-4V


YES


YES


>3V?

Supply

Replace Q4441

Check FGU (U4301)

NO Check Components between

TP4401 &C4417

NO



U0221



YES


>1V?


C4417 & Q4421

YES


>4V?


Q4421 & Q4441


Voltage



5V at pin 6 of

D4201

Isinformation

from µP U0101correct

?

IsU4201 Pin 47at = 13VDC

?

IsU4301 Pin 19

<40 mVDC in RX &>4.5 VDC in TX? (at VCO section)

?

Start

Visual check of the

BoardOK?

CorrectProblem

Check 5VRegulatorU4211

+5Vat U4201

Pins13 & 30

?

Is16.8MHz

Signal at U4201 Pin 19

?

CheckY4261 / Y4262 and

associated parts

Aresignals

at Pins 14 &15 of U4201

?

Check R4201 Check C4381

IsU4201

Pin 2 >4.5 VDC in Tx & <40 mVDC

in Rx?

Replace U4201

RemoveShorts

Isthere a short

between Pin 47 andPins 14 & 15 of

U4201?

Replace orresolder

necessarycomponents

IsRF level at

U4201 Pin 32 -12 < x <-25

dBm?

AreR4221,R4222,R4223,C4221,

C4222,& C4223 OK?

Replace U4201

If L4225, C4229 & C4227are OK, then see VCOtroubleshooting chart

AreWaveforms

at Pins 14 & 15triangular

?

DoPins 7,8 & 9

of U4201 togglewhen channel is

changed?

Check programminglines between

U0101 and U4201Pins 7,8 & 9

Replace U4201


Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YESYESNO

NO

NO

NO

YES

NO

YES

YES

Check D4201, C4202, C4203, &

C4206

5V at U4201

pins 5, 20, 34 & 36

Check 5V Regulator

U4211


U4201 Pin 23?

Replace U4201

YES

NO

NO

YES

NO

YES










OK?


NO

YES

Replace Q4301

at base of Q4332

NO

NO

NO

NO

YES

YES

YES

YES



Is RF available at C4402

YES

YES

YES

YES

NO

NO

NO

NO

NO

Audio =180mVrmsat “-” Side of

4.5VDCat CR4321

If C4321 and R4321 are OK, then replace CR4321

Replace C4322

Replace C4325

NO

NO

YES

YES

If parts between R4402 & U4301 Pin10are OK, replace U4301

TX VCORX VCO

CorrectProblem


OK?


and U4301 Pin 19


replace U4301


replace Q4332

If all parts from collectorof Q4332 to TP4003 are

OK, Replace Q4332

Power OK but no modulation

Check parts fromR4402 to U4401 Pin16



replace U4301

YES YES

Make sure Synthesizer is working correctly and runner between U4201 Pin 28 and U4301 Pin 14 & 18 are OK

4.5V DC

OK ?

OK? OK?

C4325

at U4301 Pin 14 & 18 4.5V DC

OK ?at U4301 Pin 14 &18

NO

4-1

Section 4

UHF PCB/SCHEMATICS/PARTS LISTS



The UHF circuits are contained on the Printed Circuit Board (PCB) which also contains the Controller circuits. This Chapter shows the schematics for the UHF circuits only, refer to the Controller section for details of the related Controller circuits . The PCB component layouts and the Parts Lists in this Chapter show both the Controller and UHF circuit components. The UHF schematics and the related PCB and parts list are shown in the tables below.

Table 4-1 UHF 1-25W Diagrams and Parts Lists

PCB :8485670z02 Main Board Top Side8485670z02 Main Board Bottom Side

Page 4-3Page 4-4



Parts List8485670z02 Page 4-10


PCB :8485670Z03 Main Board Top Side8485670Z03 Main Board Bottom Side

Page 4-13Page 4-14



Parts List8485670Z03 Page 4-20

4-3

TOP METAL

C3101C3102

C3103

C3114

C3115

C3124C3131

C3132

C3133

C3134

C3135

C3136

C3137

C3139

C3140

C3141

C3142

C3143

C3145

C3148

C4001C4002

C40

03

C40

04

C40

05

C40

06

C40

07

C40

08

C4009

C4014

C4015

C4016

C4017C4018

C40

19

C40

20

C40

21

C40

22

C40

23

C4026C4027C4029C4030

C4051

C4052

C4065

C4068

C4441

C4442

C4443

C4444

C4445

C4446

C4447

C4472

C4473

C4474

C4491

C4492

C4496

C4497

C4498

D4001D4002

D4003

D4004D4005 D40

06

1

D4471

D4472

23

45

6FL3101

23

45

6

FL3102

4

3 2

FL3112

FL3114

2 3

J4401

L3100

L310

1

L3124

L4001L4002

L400

3

L4004L4005

L400

6

L400

8

L4051

L4471

L4472

L4491L4492

L4493

Q40

01

Q40

03

R3101

R3106

R3111

R3117 R3123

R3124

R3130

R3132

R3135R3142

R3144

R3145

R3148

R4001

R4003

R4004

R4005

R4007

R4012

R4013

R4014

R4015

R4020

R4022

R4051

R4064

R4066

R4491

1

5

1

4

3

2

11

120

10

U3101

8 7

114

U3111

8 7

114

U3115 2

Y3102

1

1

1

1

UHF (403-470 MHz) 1-25W 8485670Z02 Top Side

ZWG0130518-A

UHF 1-25W PCBs / Schematics / Parts Lists

2.0 UHF 1-25W PCBs / Schematics / Parts Lists

C0101C0102

C0104

C0106

C0107

C0131

C0132

C0211

C0212

C0221 C0222

C0223

C0224

C0225

C0226

C0227

C02

28

C02

31

C0232

C0233

C0234

C0235

C0236

C02

37

C0241

C0242

C0243

C0244

C0245

C0246

C0251

C0252 C0253

C0256

C0261C0262

C0421 C04

41

C04

42

C04

43

C04

45

C04

46

C04

47

C04

48

C04

49

C04

70

C04

71

C04

72

C04

73

C04

74

C04

76

C04

77

C04

78

C04

82

C04

83

C0484

C0486

C0487

C04

88

C0490

C0493

C04

94

C0495

C0496

C05

01

C05

02

C05

03

C05

04

C05

05

C05

06

C05

08

C05

09

C05

10

C05

11

C05

12

C05

13

C05

14

C05

15

C05

16

C0517

C05

18

C0542

C0601

C0603

C0612

C0651

C0652

C0654

C0655

C0681

C4031

C4053

C4054

C4055

C4210

C4212

C4213

C4214C4215

C4216

C4221

C42

22

C4223

C4224

C4225

C4226

C4227

C4229

C4230

C4231

C42

32

C42

33

C42

34

C4236

C4242

C4243

C4244

C4245

C4246

C4251

C42

52

C42

53C

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C42

55

C4289

C4308 C4309

C4317C4318

C4322

C4323

C4325

C4331

C4332

C4335

C4337

C4339

C4351 C4352

C4353

C4354

C4355

C4371C4372

C4373 C4374

C4375

C4382C4383

C4401

C4402

C4403

C4404

C4407

C4417

C4418

C4419

C4420

C4422

C4423

C4424

C4425

C4426

C4428

C4431

C4432

C4434C4435

C4448

C4449

C4454

C4455

C4457

C4458

C45

05

C4507C4508

C4509

D0201

D06

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D405

D42

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181

J0451

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10

J0501

J0601

L0481

L0482

L4053

L4054

L4201L4221

L422

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L4303

L430

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1

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L4312L4313

L4331

L437

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L4401

L4403

L4411

L4422

M3421

Q0110

Q0177Q0181Q0185

Q0681

Q42

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Q4301

4 3Q4333

Q4411

Q4422

2

3

4

5

6

7

8

Q4441

Q44

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Q44

71

R0101

R0102

R0104

R0105

R0106

R0108

R0110

R0114

R0115

R0116

R0131

R0132

R0170

R0181

R0182

R0185

R0186

R02

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R0212

R0220

R0221

R0222

R0223

R0224

R0225

R0226

R0227

R0228

R0229

R0241

R0242

R0251

R0252

R0253

R0254

R0255

R0256

R0257

R0261R0262

R0268

R0269

R0442

R0510

R0533

R0535

R0538

R0539

R0543

R0611R0612

R0651

R0652

R0681

R0682

R4211

R4221R4222

R4223R4224

R4225

R42

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R42

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R4301

R4302

R4305

R4311

R4312

R4321

R4331

R4332R4333

R4337

R4341 R4343

R4345

R4346

R4401

R4402

R4403

R4404

R4406

R4415

R4416

R44

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R44

25

R44

26

R44

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R4431R4432

R4450

R4471

R4475

R4505

R4506

R4507

R4508

R4509

SH4301

2

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3217

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U0211

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2513

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161

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VR0503

VR0505

VR0510

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4-4 UHF 1-25W PCBs / Schematics / Parts Lists

C0103

C0105

C0111

C0112

C0121

C0122C0123

C0141

C0151

C0201

C0202

C0203 C0204

C0205

C0254

C0255

C0265

C0266

C0267

C0271

C0272

C0273

C0274C0275

C0276 C0277

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0325

C0331

C03

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C0342

C0343

C0344

C0430C0431

C0541

C0554

C0558 C0559C0560

C0575C0576

C0591

C0592 C0593

C0621

C0622

C0641

C0644

C0645

C0661

C0662

C0663

C0671

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4

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D0101

D0151

D0179

D06

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D06

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E0271

E02

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J0551

118

J0552

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Q0173 Q0183

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R0107

R0111R0112

R0113R0117

R0121

R0151R0152

R0171R0172

R0173

R0174

R01

75

R01

76

R0177

R01

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R0179R0183

R0184

R0201

R0202

R0203

R0204

R0205

R0206

R0207

R0208R0265

R0266R0267

R0273 R0274

R0275R0276

R0323

R0324

R0332

R0333

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R0341

R0342

R0343

R0344

R0345

R0346

R0347

R0401

R0408

R0410

R0412 R0441

R0468

R0511

R0512R0525 R0529

R 0530

R0531R0537

R 0541

R 0542

R0591

R0592

R0593

R0621

R0641

R0642

R0643

R0661

R0662 R0671 R0672

TP0101

TP0102

TP0103

TP0104

TP0151

TP0221

TP0222

TP0492

TP0497

TP0530

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14

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22

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18

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U0301

U0331

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C0303

C0304

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C0352

C0353

C0354

C0422

C0423 C04

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C04

27

C04

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C04

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C0485

C0491

C0492

C0497

C0499

C0611

C3104

C3110

C3111C3112

C3113

C3116

C3121

C3122C3123

C3144

C3146C3147

C3151

C3152

C4010

C4011

C4012

C4013

C4024

C4025

C4028C4060

C4061

C4062

C4064

C4066

C4067

C4069

C4201

C4202

C4203

C4204

C4205

C4206

C4207

C4208

C4209

C4211

C4228

C4235

C4241

C4261

C4262C4263

C4287

C4288

C4301

C 4302

C 4303

C 4304

C4305

C4306

C4307

C4311

C4312

C4313

C4314

C4315

C4316

C4321

C4324

C4333

C4334

C4336

C4338

C4361

C4362

C4363

C4381

C4400

C4405C4406

C4411C4412

C4413

C4414C4415

C4416

C4421

C4427

C4436C4437

C4439

C4440

C4451

C4452

C4453

C4471

C4475

C4501

C4502C450

C450

C450

C4510

CR4301

CR4302

CR4303

CR4311

CR4321

D03

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D4007

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FL3

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R0467

R0481

R0482

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R3114

R3115

R3116R3118

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R3134

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R3147

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R3152

R3153

R3154

R4002

R4016

R4017

R4018

R4019

R4052

R4053

R4054

R4055

R4060

R4061R4062

R4063

R4068R4069

R4070

R4071

R4072

R4201R4203

R4204

R4206

R4228

R4241R4261

R4262

R4263

R4303

R4304

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R4314

R4315 R4322 R4323

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R4335

R4336

R4338R4339

R4340

R4342

R4344

R4347

R4361

R4400

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R4412

R4413

R4417

R4418

R4421

R4422

R4423

R4428

R4429

R4440

R4441

R4442R4443

R4444

R4445

R4446

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R4511

R4512

R4513

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TP4202

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C42

28

0.1u

F

.01u

FC

4205

VC

TR

L

47R

4203

C42

16

5V

C42

241u

F

DA

TA

C42

36.0

47uF

VC

OM

OD

_UH

F_F

N_1

IN_5

V_R

F_R

EG

0.1u

F

C42

08

C42

332.

2uF

R42

2847

K

10uF

C42

06

C42

540.

1uF

VC

OB

IAS

_2_U

HF

_FN

_1

C42

26

C42

090.

1uF

47K

R42

61

.01u

F

C42

03

VC

TR

L_U

HF

_FN

_1

C42

102.

2uF

100

R42

63

39K

R42

51

510

R42

22

C42

0110

0pF

R42

5230

K

16_8

MH

z

C42

32.0

1uF

R42

2447

K

C42

23

R42

62

100p

FC

4245

2.2u

H

C42

29

L423

1

R42

01

150

C42

62

CLK

_UH

F_F

N_1

150

PR

ES

C

R42

21

16_8

MH

z_U

HF

_FN

_1

100p

F

VC

OB

IAS

_2

VS

F

C42

44

D42

61

.01u

FC

4231

PR

ES

C_U

HF

_FN

_1

.018

uF

C42

12

390n

HL4

201

C42

4210

0pF

4.7u

FC

4253

BW

SE

LEC

T_U

HF

_FN

_1

MO

DIN

VC

OM

OD

.01u

FC

4221

0

C42

220.

1uF

R42

11

2.2u

FC

4215

C42

07

12uH

L422

1

0.1u

FC

4251

100p

FC

4241

C42

43

1000

pF

VS

F_U

HF

_FN

_1

C42

52

.01u

FC

4235

LOC

K

2.2u

FC

4213

C42

61

MO

DIN

_UH

F_F

N_1

XT

AL1

2324X

TA

L2

5V_U

HF

_FN

_1

VB

PA

SS

21

VC

P 47

15V

MU

LT1

VM

ULT

214

VM

ULT

312

VM

ULT

411

13VRO

WA

RP

25

PV

RE

F35

RE

FS

EL

18

SF

BA

SE

27S

FC

AP

26

SF

IN30

SF

OU

T28

TE

ST

137

TE

ST

238

NC

117

NC

229

NC

331

PD_GND44 5PD_VDD

32P

RE

IN

PRE_GND33 PRE_VDD 34

DGNDDVDD 36

FR

EF

OU

T19

IAD

AP

T45

IND

MU

LT16

IOU

T434

LOC

K

MO

DIN

10

MO

DO

UT

41

AVDD20B

IAS

140

BIA

S2

39

CC

OM

P42

CE

X9

CLK

8

DA

TA

7

6

AD

AP

TS

W46

AGND22

AU

X1

48A

UX

21

AU

X3

2A

UX

43

U42

01

63A

27

R42

06

VD

DA

_UH

F_F

N_1

5V_U

HF

_FN

_2

R42

25

47K

100p

FC

4246

C42

25

510p

F

LOC

K_U

HF

_FN

_1

D42

21

.01u

F

C42

02

L422

5

15nHIN

_5V

_RF

_RE

G_U

HF

_FN

_1

2.2u

FC

4230

100p

FC

4255

CS

X

R42

23

68

CS

X_U

HF

_FN

_1

DA

TA

_UH

F_F

N_1

OU

T3

IN6

VD

DA

Y42

6175

Z04

16.8

MH

z

1G

ND

4G

ND

10.

1uF

C42

63

TR

B

CLK

R42

41

220

C42

34.0

1uF

C42

27

8.2p

F

C42

88

TP

4202

BW

SE

LEC

T

Q42

21

C42

8710

0pF

C42

89

5V

5V

0.1u

F

VD

DA

VD

DA

In c

ase

Y32

61 is

use

d in

stea

d of

Y32

63,

repl

acem

ent o

f the

follo

win

g pa

rts

req

uire

s

new

tem

pera

ture

com

pens

atio

n of

the

freq

uenc

y:

Y32

61, U

3201

, R32

61, R

3262

, C32

62, D

3261

HF

(40

3-47

0 M

Hz)

FR

AC

N

ZW

G01

3052

1-B

UH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-7

NU

NU

NU

0 V

DC

(T

x)

NU

NU

NU

NU

2.5

- 11

VD

C

0 V

DC

(R

x)

4.58

VD

C

4.58

VD

C

NU

NU

13.5

to 1

6 dB

m

NU

0 V

DC

(T

x)

3.1

VD

C (

Rx)

0 V

DC

(T

x)4.

7 V

DC

(R

x)

NU

(Tx)

4.54

VD

C0

VD

C (

Tx)

2.35

VD

C

NU

0 V

DC

(R

x)

4.42

VD

C (

Rx)

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

4.97

VD

C (

Tx)

-18

to -

16 d

Bm

(R

x)-1

6 to

-11

dB

m (

Tx)

4 to

6 d

Bm

4.54

VD

C

4.54

VD

C (

Tx)

2.6

VD

C (

Tx)

1.91

VD

C (

Tx)

0 V

DC

(R

x)

2.45

VD

C (

Rx)

(Rx)

2.43

VD

C (

Rx)

NU

NU

GN

D

C43

0110

0pF

30R43

13

C43

72

VC

TR

L_U

HF

_VC

O

L433

133

nH

VS

F_U

HF

_VC

0

C43

180.

1uF

Q43

01

R43

6118

0

C43

0551

pF

C43

37R

4332

CR

4303

C43

82

VC

OB

IAS

_2

5V_U

HF

_VC

O

C43

32

0

R43

15

CR

4311

C43

81

C43

13

.022

uFC

4336

R43

45

SH

4301

SH

IELD

R43

0210

K

C43

83

C43

63

R43

33

R43

125.

6K

C43

09

100p

F

C43

1510

0pF

19T

RB

_IN

16T

X_B

AS

E15

TX

_EM

ITT

ER

1T

X_I

AD

J10

TX

_OU

T

13T

X_S

WIT

CH

14

VC

C_B

UF

FE

RS

18

VC

C_L

OG

IC

GN

D_L

OG

IC17

12P

RE

SC

_OU

T5

RX

_BA

SE

6R

X_E

MIT

TE

R

2R

X_I

AD

J8

RX

_OU

T

7R

X_S

WIT

CH

3S

UP

ER

_FLT

R

U43

01

4C

OLL

_RF

IN

20F

LIP

_IN

11

GN

D_B

UF

FE

RS

9

GN

D_F

LAG

R43

46

10K

50U

54

L431

2

RE

SO

NA

TO

R

1P

1 2 P2

3P

3

C43

141.

5pF

C43

07

100p

F

C43

520.

1uF

C43

21

Q43

31

1pF

4

1 3

CR

4301

Q43

33

2

6

C43

39

C43

75

L433

2

L436

139

0nH

VC

TR

L

0

R43

41

C43

242.

4pF

2.2K

R43

42

6.8p

F

TR

B_U

HF

_VC

O

C43

31

C43

043.

9pF

C43

33

C43

74

C43

35

100p

F

270

R43

14

7.5K

R43

11

TX

INJ_

UH

F_V

CO

R43

34

R43

01 L430

139

0nH

R43

23

5.6K

100K

1KR

4343

C43

530.

1uF

C43

12

12pF

390n

HL4

305

C43

23

R43

37

C43

17

PR

ES

C

Q43

32

68nH

L433

339

0nH

L437

1

56K

R43

21

R43

05

C43

16

10

0

5V

0.1u

F

R43

47C

4338

R43

36

51pF

2.2u

FC

4354

C43

5110

0pF

22

R43

31

C43

73

R43

39

PR

ES

C_U

HF

_VC

O

390n

H

L431

1

R43

35

180

R43

04

CR

4321

10K

R43

22

100p

F

C43

1110

0pF

C43

61

30

R43

03

L430

239

0nH

C43

62

C43

038.

2pF

R43

38

RX

INJ

RX

INJ_

UH

F_V

CO

L430

3R

ES

ON

AT

OR

1P

1

2 P2

3P

3

0.1u

FC

4371

TX

INJ

390n

HL4

313

SH

IELD

SH

4302

TR

B

C43

34

C43

06

2pF

C43

552.

2uF

VS

F

VC

OB

IAS

_2_U

HF

_VC

O

VC

OM

OD

C43

08

0.1u

F

390n

HL4

304

C43

028.

2pF

CR

4302

10R43

44

C43

22

4.7u

F

C43

25V

CO

MO

D_U

HF

_VC

O

GR

OU

ND

R43

40

5V

VS

F

TX

SW

TX

SW

RX

SW

RX

SW

VS

F

ZW

G01

3052

3-A

UH

F (

403-

470

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

ZW

G01

3052

3-A

4-8

UH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

R40

66

C40

69R

4070

.01u

F

C40

6810

0pF

C40

65

390

C40

640.

1uF

010

0pF

390

R40

64

R40

621.

5K

R40

63R40

7210

K

R40

71

10K

C40

620.

1uF

R40

61

10K

C40

6133

0pF

R40

691K

R40

68

C40

66

1.5K

C40

6733

00pF

R40

54

R40

55

R40

53R

4052

0

C40

60

R40

60

330K

L400

8

470n

H

R40

22

L400

6

0

R40

20

C40

51

15nH

10pF

L405

4

C40

3113

pF

15nH

L405

327

nH

C40

556.

2pF

NU

C40

5416

pFC

4053

R40

51

16pF

C40

52

51

L405

1

82pF

150n

H

L400

5L4

001

L400

2L4

004

C40

10

1.8p

F

330p

F

C40

29C

4027

C40

301.

8pF

1.8p

F1.

8pF

C40

26

R40

13

R40

15

270

C40

161p

F

C40

19

R40

19

12pF

C40

0336

pF

C40

25

R40

17

3.3K

R40

16

R40

18C

4028

.01u

F

C40

2033

pF

3.3K

C40

0433

pFC

4005

1.8p

F33

pF

C40

01C

4002 C

4006

33pF

C40

07

FE

CT

RL_

1_U

HF

_FE

30pF

100K

R40

01

C40

09

10pF

R40

033.

9K

R40

042.

7K

D40

07

10K

IF_U

HF

_FE

R40

05

C40

1410

0pF

470n

HK

9V1_

UH

F_F

E

L400

3

R40

07

100

RX

IN_U

HF

_FE

330p

F33

00pF

C40

12C

4013

100p

FC

4015

GN

D_U

HF

_FE

C40

1133

00pF

330

RX

INJ_

UH

F_F

E

R40

02

Q40

04

33pF

C40

21

T40

52

C40

17

D40

51

1.8p

F12

pF

Q40

03

Q40

01

C40

18

C40

2233

pF

T40

51

TP

4003

12pF

100K

C40

23

D40

0510

R40

12

R40

14

C40

0810

00pF

1000

pF

D40

01

C40

24

33pF

NU

NU

NU

NU

NU

3 to

6.5

VD

C

NU

NU

NU

NU

NU

NU

0.7

VD

C

4.6

VD

C

NU

NU

Q40

02D

4006

D40

04

9V3_

UH

F_F

E

D40

03

D40

02

FE

CT

RL_

2_U

HF

_FE

10

10

0

820

820

10

0

0

20pF

2.2p

F

1pF

IN

NE

G

PO

S

IN

NE

G

PO

S

IN

NE

G

PO

S

IN

NE

G

PO

S

UH

F (

403-

470

MH

z) R

ecei

ver

Fro

nt

En

d

ZW

G01

3052

4-B

UH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

4-9

9180

468v

04

9180

468V

06

3.9V

DC

12.

5kH

z 0

VD

C20

/25k

Hz

5V

DC

9180

469V

03

3VD

C

9180

469V

06

9180

469V

04

0.75

VD

C0.

75V

DC

3VD

C

R31

17

27K

Q31

02 10R

3112

IF

1.8K

R31

42

10K

27pF

R31

54

C31

400.

1uF

C31

10

620n

HL3

111

620

R31

085

CN

TL

43

14 VD

D 7

VS

S

C31

44

U31

15-2

C31

430.

1uF

120p

F

R31

15

390

R31

18

6.8K

R31

1112

K

5V_V

HF

_IF

_1Q

3151

NU

C31

13

NU

R31

04

22pF

C31

15

VD

D

14

VS

S 7

Q31

41

MC

74H

C40

66

U31

11-1

CN

TL 13

12

R31

16 330

82pF

C31

12

Q31

52

R31

351.

2K

DIS

CA

UD

IO_V

HF

_IF

_1

BW

SE

LEC

T_V

HF

_IF

_1

R31

01

IFIN

_VH

F_I

F_1

12K

C31

3310

uF

C31

52.0

1uF

0.1u

FC

3142

DIS

CA

UD

IO

R31

3215

K

680

R31

46

10K

R31

51

0.1u

FC

3139

C31

320.

1uF

10K

R31

52

0.1u

FC

3111

20pF

C31

01

3

GND1

GND2 4

1IN

2O

UT

FL3

111

C31

410.

1uF

GND3 45GND4

3IN

6O

UT

R31

338.

2K

FL3

101

12R

16

1GND1GND2 2

0

7

R31

48

U31

11-4

CN

TL

12

1110

VD

D

14 VS

S

9V3_

VH

F_I

F_2

R31

02 10

FL3

113

3GN

D

1IN

2O

UT

27K

R31

06

R31

4139

0

14

VD

D

7

VS

S

2.4K

R31

44

U31

11-2

5

CN

TL

43

NU

C31

31

C31

22

.039

uF

R31

07

5RSSIOUT9 RSSI_FEED

6

VCC

6.8K

13LIM_DEC112LIM_DEC2

20MIXOUT4 OSCIN

3OSCOUT

10 QUADIN

1 RFIN2 RFIN_DEC

AUDIO_FEED

GND15

18 IFAMPIN 16IFAMPOUT19 IFAMP_DEC1

17IFAMP_DEC2

14LIMIN

11LIMOUT

SA

616

U31

01

8AUDIOOUT

7

CN

TL 13

12

VD

D

14 VS

S 7

5V

U31

15-1

R31

05

L310

0

100

0.1u

F

9V3

NU

3

21

C31

34

BW

SE

LEC

T

45B

02

Y31

0245

5KH

z

C31

03

33pF

C31

470.

1uF

0.1u

FC

3145

620n

HL3

101

6CN

TL

89

14 VD

D 7VS

S9

14 VD

D 7VS

S

U31

11-3

U31

15-3

6CN

TL

8

GND1 12GND24GND3

GND4 5

IN3

OU

T6

30pF

12R

16F

L310

2

33pF

C31

36

C31

35

NU

L312

4

NU

C31

24NU

R31

24

C31

1418

pF

C31

040.

1uF

C31

210.

1uF

Q31

01.0

39uF

C31

23

.01u

FC

3151

51

4700

pFC

3146

R31

30

10K

R31

53

C31

48

R31

47

NU

D31

01

0

R31

23

330

R31

13

15pF

C31

02

3.3K

R31

45

C31

37.0

39uF

3GN

D

1IN

2O

UT

RS

SI

FL3

114

10V

DD

14

VS

S

7

0.1u

F

C31

16

2O

UT

U31

15-4

CN

TL

12

11

FL3

112

3

GND1

GND2 4

1IN

R31

14

R31

34

10K

NU

FL3

115

GND1

34

GND2

IN1

OU

T2

NU

9V3_

VH

F_I

F_1

L311

262

0nH

Y31

01

2G

ND

4G

ND

1

3O

UT

1IN

5V

44.3

95M

Hz

12R

17

5V

9V3

9V3

9V3

9V3

9V3

5V

9V3

5V

9V3

12k

ZW

G01

3052

2-A

UH

F (

403-

470

MH

z) IF

4-10

UH

F 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

UH

F P

CB

848

5670

Z02

Par

ts L

ist

1-25

W

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

C30

0021

1374

1F37

3.3n

F 5

0VC

3001

2113

740F

194.

7pF

5%

C30

0221

1374

0F26

9.1p

F 5

%C

3003

2113

741F

373.

3nF

50V

C30

0421

1374

0F45

56pF

5%

C30

0521

1374

0F51

100p

F 5

%C

3006

2113

740F

4556

pF 5

%C

3007

2113

741F

373.

3nF

50V

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0821

1374

1F25

1nF

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C30

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1374

1F13

330p

F 5

0VC

3010

2113

741F

1333

0pF

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1374

1F37

3.3n

F 5

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741F

251n

F 5

0VC

3013

2113

740F

4556

pF 5

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3014

2113

740F

247.

5pF

5%

C30

1521

1374

0F45

56pF

5%

C30

1621

1374

0F51

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F 5

% 5

0VC

3017

2113

740F

4243

pF 5

% 5

0VC

3019

2113

741F

251n

F 5

0VC

3020

2113

741F

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F 5

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3021

2113

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5312

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1374

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1374

3E20

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3027

2113

741F

4910

nF 5

0VC

3028

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741F

4910

nF 5

0VC

3030

2113

741F

251n

F 5

0VC

3033

2113

740F

205.

1pF

5%

50V

C30

3421

1374

0F49

82pF

5%

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C30

3521

1374

0F33

18pF

5%

50V

C30

3621

1374

1F25

1nF

50V

C31

0021

1374

1F25

1nF

50V

C31

0221

1374

0F31

15pF

5%

50V

C31

0321

1374

0F39

33pF

5%

50V

C31

0421

1374

3E20

100n

F 1

6VC

3110

2113

740F

3727

pF 5

% 5

0VC

3111

2113

743E

2010

0nF

16V

C31

1221

1374

0F49

82pF

5%

50V

C31

1421

1374

0F33

18pF

5%

50V

C31

1521

1374

0F35

22pF

5%

50V

C31

1621

1374

3E20

100n

F 1

6VC

3121

2113

743E

2010

0nF

16V

C31

2221

1374

3E11

39nF

10%

C31

2321

1374

3E11

39nF

10%

C31

3221

1374

3E20

100n

F 1

6VC

3133

2311

049A

57TA

NT

CP

10u

F 1

0% 1

6VC

3134

2113

743E

2010

0nF

16V

C31

3521

1374

0L30

33pF

2%

C31

3621

1374

0L29

30pF

2%

C31

3721

1374

3E11

39nF

10%

C31

3921

1374

3E20

100n

F 1

6V

C31

4021

1374

3E20

100n

F 1

6VC

3141

2113

743E

2010

0nF

16V

C31

4221

1374

3E20

100n

F 1

6VC

3143

2113

740F

5312

0pF

5%

50V

C31

4421

1374

3E20

100n

F 1

6VC

3145

2113

743E

2010

0nF

16V

C31

4621

1374

1F41

4.7n

F 5

0VC

3147

2113

743E

2010

0nF

16V

C31

5121

1374

1F49

10nF

50V

C31

5221

1374

1F49

10nF

50V

C32

0221

1374

1F49

10nF

50V

C32

0321

1374

1F49

10nF

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C32

0521

1374

1F49

10nF

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C32

0623

1104

9A57

TAN

T C

P 1

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10%

16V

C32

0821

1374

3E20

100n

F 1

6VC

3209

2113

743E

2010

0nF

16V

C32

1023

1104

9A40

TAN

T C

P 2

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10%

10V

C32

1121

1374

3E20

100n

F 1

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3213

2311

049A

40TA

NT

CP

2.2

uF 1

0% 1

0VC

3214

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

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3215

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

0VC

3221

2113

743E

2010

0nF

16V

C32

2221

1374

3E20

100n

F 1

6VC

3224

0882

422W

23F

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SM

1.0

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3225

2113

743E

2010

0nF

16V

C32

2621

1374

0F25

8.2p

F 5

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3227

2113

740F

5110

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C32

2821

1374

3E20

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F 1

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3229

2113

743E

1247

nF 1

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3231

2113

741F

4910

nF 5

0VC

3232

2113

741F

4910

nF 5

0VC

3233

2311

049A

40TA

NT

CP

2.2

uF 1

0%C

3234

2113

741F

4910

nF 5

0VC

3235

2113

741F

4910

nF 5

0VC

3242

2113

740F

5922

0pF

5%

50V

C32

4321

1374

0F59

220p

F 5

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3244

2113

740F

5922

0pF

5%

50V

C32

4521

1374

0F59

220p

F 5

% 5

0VC

3246

2113

740F

5922

0pF

5%

50V

C32

5121

1374

3E20

100n

F 1

6VC

3252

2113

741F

251n

F 5

0VC

3253

2311

049A

56TA

NT

CP

4.7

uF 2

0% 1

0VC

3254

2113

743E

2010

0nF

16V

C32

5523

1104

9A40

TAN

T C

P 2

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10V

C32

6321

1374

3E20

100n

F 1

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3302

2113

740F

236.

8pF

5%

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C33

0321

1374

1F49

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50V

C33

0621

1374

0F20

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3311

2113

743E

0722

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3314

2113

740F

236.

8pF

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C33

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3317

2113

740F

3933

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3318

2113

740F

215.

6pF

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C33

1921

1374

1F25

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2421

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1F49

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C33

3221

1374

3E20

100n

F 1

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3333

2113

743E

2010

0nF

16V

C33

3421

1374

3E07

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C33

3521

1374

1F49

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C33

3621

1374

1F49

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C33

3721

1374

3E20

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3341

2113

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C33

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3E07

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5521

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5621

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5721

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3361

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741F

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3426

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3451

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3452

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3453

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1374

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270

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1F33

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3502

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6248

6282

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4813

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BD

6100

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5148

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6E05

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CH

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3471

4802

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7248

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112

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J340

109

8616

6B02

RF

CO

NN

MIN

I UH

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002

2462

587T

23C

OIL

CH

IP 4

70nH

L303

124

6258

7T24

CO

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560

nHL3

032

2462

587T

17C

OIL

CH

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50nH

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124

6258

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CO

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620

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111

2462

587T

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CH

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20nH

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224

6258

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CO

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620

nHL3

201

2462

587Q

42IN

D C

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390

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231

2462

587Q

20IN

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2.2

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301

2462

587N

44C

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IND

18

NH

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224

6258

7N53

CH

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D 1

00 n

H 5

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317

2462

587V

28C

HIP

IND

33

NH

5%

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824

6258

7V34

IND

CH

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124

6258

7V32

CH

IP IN

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224

6258

7V15

IND

CH

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324

6258

7Q47

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CH

IP 1

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2484

562T

13M

INI-

SP

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G A

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2462

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56C

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424

6258

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CH

IP IN

D 1

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524

6258

7N68

CH

IP IN

D 1

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5%

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624

8456

2T18

MIN

I-S

PR

ING

AW

IND

35.

5NH

2%

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124

6258

7N68

CH

IP IN

D 1

uH

5%

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124

6258

7N50

CH

IP IN

D 5

6 nH

5%

L336

224

6258

7N51

CH

IP IN

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8 nH

5%

L336

324

6258

7N50

CH

IP IN

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6 nH

5%

L336

424

6258

7N68

CH

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D 1

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5%

L340

124

6059

1A01

SQ

UA

RE

CO

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411

2462

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6258

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CH

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O-P

RO

15.

0L3

413

2460

591B

04S

QU

AR

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11.

03nH

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424

6059

1A11

SQ

UA

RE

CO

IL 7

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421

2484

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ead

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224

6059

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CO

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6nH

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624

8465

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rite

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437

2460

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443

2460

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UA

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25n

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471

2462

587X

69IN

D C

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1.2

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2460

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01C

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51n

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491

2460

592B

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AW

51n

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492

2460

592B

01C

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AW

51n

H 4

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493

2460

592B

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OIL

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51n

H 4

TM

3421

2686

201B

01H

EA

T S

PR

EA

DE

RQ

3001

4813

827A

07T

ST

R N

PN

SM

L S

IG M

MB

R9

Q30

0248

1382

4A17

TS

TR

PN

P 4

0V .2

A B

=10

0-Q

3021

4805

921T

02T

ST

R D

UA

L R

OH

M F

MC

2Q

3101

4813

827A

07T

ST

R N

PN

SM

L S

IG M

MB

R9

Q31

0248

1382

7A07

TS

TR

NP

N S

ML

SIG

MM

BR

9Q

3141

4813

824A

10T

ST

R N

PN

40V

.2A

B=

50-1

50Q

3151

4880

048M

01T

ST

R N

PN

DIG

47k

/47k

Q31

5248

8004

8M01

TS

TR

NP

N D

IG 4

7k/4

7kQ

3221

4880

048M

01T

ST

R N

PN

DIG

47k

/47k

Q33

0148

1382

7A07

TS

TR

NP

N S

ML

SIG

MM

BR

9Q

3303

4802

245J

50T

ST

R D

UA

L N

PN

/PN

P U

MC

5NQ

3304

4805

218N

63R

F T

RA

NS

SO

T 3

23 B

FQ

67W

Q34

1148

0592

1T02

DU

AL

RO

HM

FM

C2

RH

Q34

2148

0224

5J55

MR

F15

07Q

3422

4880

048M

01N

PN

DIG

47k

/47k

Q34

4148

8613

6B01

LDM

OS

PW

R T

ST

R M

RF

1565

M

RF

1550

Q34

4248

8004

8M01

NP

N D

IG 4

7k/4

7kQ

3471

4880

048M

01N

PN

DIG

47k

/47k

Q34

7248

0512

8M27

PN

P S

OT

89 B

SR

33 L

HR

3000

0662

057A

531k

5 1/

16W

5%

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0106

6205

7A97

100k

1/1

6WR

3002

0662

057A

4356

0 1/

16W

5%

R30

0306

6205

7A49

1k 1

/16W

5%

R30

0406

6205

7A53

1k5

1/16

W 5

%R

3006

0662

057A

7310

k 1/

16W

5%

R30

0906

6205

7A97

100k

1/1

6WR

3010

0662

057A

4568

0 O

HM

S 5

%R

3011

0662

057A

654k

7 1/

16W

5%

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1206

6205

7A49

1k 1

/16W

5%

R30

1306

6205

7A61

3k3

1/16

W 5

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3014

0662

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1851

1/1

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3015

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0110

1/1

6W 5

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3016

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0110

1/1

6W 5

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3018

0662

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3322

0 1/

16W

5%

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1906

6205

7A89

47k

1/16

W 5

%R

3021

0662

057A

4356

0 1/

16W

5%

R30

2406

6205

7A39

390

1/16

W 5

%R

3025

0662

057A

531k

5 1/

16W

5%

R30

2606

6205

7A73

10k

1/16

W 5

%R

3027

0662

057A

7310

k 1/

16W

5%

R30

2806

6205

7A39

390

1/16

W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R30

3106

6205

7A18

51 1

/16W

5%

R30

3306

6205

7B47

0 1/

16W

R

3101

0662

057A

7512

k 1/

16W

5%

R31

0206

6205

7A01

10 1

/16W

5%

R31

0506

6205

7A25

100

1/16

W 5

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3106

0662

057A

8327

k 1/

16W

5%

R31

0706

6205

7A69

6k8

1/16

W 5

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3108

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4462

0 O

HM

S 5

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3111

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k 1/

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R

3112

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0110

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3113

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3733

0 1/

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6205

7A39

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1/16

W 5

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3116

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3733

0 1/

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5%

R31

1706

6205

7A83

27k

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W 5

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3118

0662

057A

696k

8 1/

16W

5%

R31

3006

6205

7A18

51 1

/16W

5%

R31

3206

6205

7A77

15k

1/16

W 5

%R

3133

0662

057A

718k

2 1/

16W

5%

R31

3406

6205

7A73

10k

1/16

W 5

%R

3135

0662

057A

511k

2 1/

16W

5%

R31

4106

6205

7A39

390

1/16

W 5

%R

3142

0662

057A

551k

8 1/

16W

5%

R31

4406

6205

7A58

2k4

1/16

W 5

%R

3145

0662

057A

613k

3 1/

16W

5%

R31

4606

6205

7A45

680

OH

MS

5%

R31

4706

6205

7A75

12k

1/16

W 5

%R

3151

0662

057A

7310

k 1/

16W

5%

R31

5206

6205

7A73

10k

1/16

W 5

%R

3153

0662

057A

7310

k 1/

16W

5%

R31

5406

6205

7A73

10k

1/16

W 5

%R

3201

0662

057A

1747

1/1

6W 5

%R

3203

0662

057A

1747

1/1

6W 5

%R

3204

0662

057A

1747

1/1

6W 5

%R

3211

0662

057B

470

1/16

WR

3221

0662

057A

3939

0 1/

16W

5%

R32

2206

6205

7A45

CH

IP R

ES

680

OH

MS

5%

R32

2306

6205

7A25

100

1/16

W 5

%R

3224

0662

057A

8947

k 1/

16W

5%

R32

2506

6205

7A89

47k

1/16

W 5

%R

3227

0662

057A

9710

0k 1

/16W

R32

4106

6205

7A25

100

1/16

W 5

%R

3242

0662

057B

470

1/16

WR

3251

0662

057B

0418

0k 1

/16W

5%

R32

5206

6205

7B10

330k

1/1

6W 5

%R

3261

0662

057A

8947

k 1/

16W

5%

R32

6306

6205

7A65

4k7

1/16

W 5

%R

3301

0662

057A

2275

1/1

6W 5

%R

3302

0662

057A

2510

0 1/

16W

5%

R33

0306

6205

7A57

2k2

1/16

W 5

%R

3304

0662

057A

491k

1/1

6W 5

%R

3308

0662

057B

470

1/16

W

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R33

1106

6205

7A25

100

1/16

W 5

%R

3316

0662

057B

470

1/16

WR

3318

0662

057A

0922

1/1

6W 5

%R

3321

0662

057A

7310

k 1/

16W

5%

R33

2306

6205

7A49

1k 1

/16W

5%

R33

3106

6205

7A17

47 1

/16W

5%

R33

3506

6205

7A13

33 1

/16W

5%

R33

3606

6205

7A77

15k

1/16

W 5

%R

3341

0662

057A

3322

0 1/

16W

5%

R33

4206

6205

7A15

39 1

/16W

5%

R33

4306

6205

7A25

100

1/16

W 5

%R

3351

0662

057A

8020

k 1/

16W

5%

R33

5206

6205

7A75

12k

1/16

W 5

%R

3353

0662

057A

9710

0k 1

/16W

R33

5406

6205

7B02

150k

1/1

6WR

3355

0662

057A

8020

k 1/

16W

5%

R33

5606

6205

7A75

12k

1/16

W 5

%R

3361

0662

057A

3322

0 1/

16W

5%

R33

6206

6205

7A17

47 1

/16W

5%

R33

6406

6205

7A89

47k

1/16

W 5

%R

3400

0662

057A

4147

0 1/

16W

5%

R34

0106

6205

7A36

300

1/16

W 5

%R

3402

0662

057A

0515

1/1

6W 5

%R

3403

0662

057A

3630

0 1/

16W

5%

R34

0406

6205

7A89

47k

1/16

W 5

%R

3405

0662

057A

2510

0 1/

16W

5%

R34

0606

6205

7A97

100k

1/1

6WR

3412

0662

057A

675k

6 1/

16W

5%

R34

1306

6205

7A61

3k3

1/16

W 5

%R

3414

0683

962T

5112

0 1W

5%

R34

1506

6205

7A25

100

1/16

W 5

%R

3416

0662

057A

2510

0 1/

16W

5%

R34

1806

6205

7A81

22k

1/16

W 5

%R

3421

0662

057A

8739

k 1/

16W

5%

R34

2206

6205

7A57

2k2

1/16

W 5

%R

3423

0662

057A

8739

k 1/

16W

5%

R34

2406

6205

7C13

2R7

1/10

W 5

%R

3425

0662

057C

132R

7 1/

10W

5%

R34

2606

6205

7C13

2R7

1/10

W 5

%R

3427

0662

057C

132R

7 1/

10W

5%

R34

2806

6205

7A58

2k4

1/16

W 5

%R

3429

0662

057A

3322

0 1/

16W

5%

R34

3106

8019

4M18

51 1

W 5

%R

3432

0680

194M

1851

1W

5%

R34

3306

6205

7C13

2R7

1/10

W 5

%R

3434

0662

057C

132R

7 1/

10W

5%

R34

3506

6205

7C13

2R7

1/10

W 5

%R

3441

0662

057A

8739

k 1/

16W

5%

R34

4206

6205

7A57

2k2

1/16

W 5

%R

3443

0662

057A

8739

k 1/

16W

5%

R34

4406

6205

7C19

4R7

1/10

W 5

%

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

4-12

UH

F 1

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PC

Bs

/ Sch

emat

ics

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ts L

ists

* M

otor

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Dep

ot S

ervi

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onl

y

Ref

eren

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nato

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ith a

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teris

k in

dica

te

com

pone

nts

whi

ch a

re n

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eld

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ble

beca

use

they

nee

d to

be

calib

rate

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ith

spec

ializ

ed fa

ctor

y eq

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ent a

fter

inst

alla

tion.

R

adio

s in

whi

ch th

ese

part

s ha

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repl

aced

in

the

field

will

be

off f

requ

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extr

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3446

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470

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4147

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5%

R34

5206

6205

7A75

12k

1/16

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3454

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8430

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16W

5%

R34

5506

6205

7A97

100k

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3457

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0 1W

5%

R34

7106

6205

7A41

470

1/16

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3473

0680

194M

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7406

8019

4M18

51 1

W 5

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3475

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7310

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R34

9106

6205

7A73

10k

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3501

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696k

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0206

6205

7A87

39k

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3504

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7310

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R35

0506

6205

7B09

300k

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8020

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7A97

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491k

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3001

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OR

ME

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TOP METALTOP METAL

C01

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04C01

06

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07

C01

08

C01

31

C01

32

C02

11

C02

12

C0221

C0222

C02

23

C02

24

C02

25

C02

26

C02

27

C0228

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C02

33

C02

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C02

36

C0237

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42

C02

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C02

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C02

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C0441

C0442

C0443

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C0446

C0447

C0448

C0449

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C0471

C0472

C0473C0474

C0476

C0477 C04

78

C0482C0483

C04

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C0488

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C04

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C0494

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96

C0501C0502C0503

C0504

C0505C0506C0508

C0509

C0510

C0511

C0512

C0513C0514

C0515

C0516

C05

17

C0518

C05

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C06

01

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31

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32

C31

33

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34

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35

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36

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37

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39

C31

40

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41

C31

42

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43

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53

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54

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4065

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13

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24

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25

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26

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27

C42

29

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C4234

C42

36C

4242

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43

C42

44

C42

45

C42

46

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C4252

C4253C4254

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C42

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22

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C (

Tx)

3.05

VD

C (

RX

)

6.68

VD

C

VD

C

1.78

VD

C (

Rx)

4.58

VD

C

2.52

VD

C

2.48

VD

C

0 V

DC

(R

X)

NU

NU

TR

B

CLK

220

R42

41

.01u

FC

4234

TP

4202

10pF

C42

27

NU

0.1u

FC

4288

Q42

2110

0pF

C42

87

BW

SE

LEC

T

C42

890.

1uF

C42

510.

1uF

VC

OB

IAS

_2_U

HF

_FN

_1

C42

5510

0pF

CS

X_U

HF

_FN

_1

0.1u

FC

4209

VC

TR

L_U

HF

_FN

_1

R42

6147

K

R42

6310

0

39K

R42

51

R42

2251

0

100p

FC

4201

16_8

MH

z

30K

R42

52

C42

32

47K

R42

24

.01u

F

R42

62

NU

C42

23

100p

F

NU

6.2K

C42

29

C42

45

NU

2pF

2.2u

H

L423

1

100p

F

C42

04

100p

FC

4243

C42

142.

2uF

TR

B_U

HF

_FN

_1

DA

TA

_UH

F_F

N_1

C42

110.

1uF

VD

DA

C42

280.

1uF

Y42

61

GN

D 1G

ND

14

3O

UT

6IN

NU

0.1u

F

NU

16.8

MH

z75

Z04

VC

TR

L

C42

63

C42

05.0

1uF

5V

47R

4203

C42

16.0

1uF

1uF

C42

24

.047

uFC

4236

VC

OM

OD

_UH

F_F

N_1

IN_5

V_R

F_R

EG

DA

TA

C42

08

0.1u

F

2.2u

FC

4233

R42

2810

K

CLK

_UH

F_F

N_1

C42

0610

uF

150

R42

21

C42

262.

4pF

C42

6233

0pF

C42

03

NU

100p

FC

4244

.01u

F

C42

10

VS

F

2.2u

F

NU

D42

61

PR

ES

C_U

HF

_FN

_1

.01u

FC

4231

150

R42

01L420

139

0nH

C42

42

C42

534.

7uF

100p

F

MO

DIN

VC

OM

OD

BW

SE

LEC

T_U

HF

_FN

_1

C42

21.0

1uF

0

R42

11

0.1u

FC

4222

2.2u

FC

4215

NU

C42

07

100p

F

L422

112

uH

?XE

RR

?X GND

?XIN

?XN

R?X

OU

T?X

SD

TP

4201

AD

P33

00U

4211

R42

04

PR

ES

C

47

C42

52

VS

F_U

HF

_FN

_1

6A

1

5A

2

4A

3

K1

1K

22

K3

3

1000

pF

VC

NT

L

1

D42

01

16.8

MH

zY

4262

TT

S05

V

2G

ND

3O

UT

VC

C4

C42

35.0

1uF

2.2u

FC

4213

C42

6133

pF

XT

AL2

24

5V_U

HF

_FN

_1

NU

47

VC

P

VM

ULT

11514

VM

ULT

212

VM

ULT

311

VM

ULT

4

VRO 13

25W

AR

P

23X

TA

L1

18R

EF

SE

L

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

29N

C2

31N

C3

44 PD_GND

PD_VDD 5

PR

EIN

32

33 PRE_GND34PRE_VDD

35P

VR

EF

19F

RE

FO

UT

45IA

DA

PT

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN

41M

OD

OU

T

17N

C1

40B

IAS

139

BIA

S2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6

36DVDD

46A

DA

PT

SW

22 AGND

48A

UX

11

AU

X2

2A

UX

33

AU

X4

20AVDD

63A

27

U42

01

VD

DA

_UH

F_F

N_1

33K

R42

06

5V_U

HF

_FN

_2

47K

R42

25

C42

4610

0pF

LOC

K_U

HF

_FN

_1

510p

F

C42

25

D42

21

C42

02

.01u

F

100p

F

IN_5

V_R

F_R

EG

_UH

F_F

N_1

NU

C42

41

C42

30

CS

X

2.2u

F

0.1u

FC

4254

68

R42

23

.01u

F

C42

17

100K

R42

27

VC

OB

IAS

_2

LOC

K

16_8

MH

z_U

HF

_FN

_1

5V

MO

DIN

_UH

F_F

N_1

5V

VD

DA VD

DA

HF

(40

3-47

0 M

Hz)

FR

AC

N

ZW

G01

3062

2-O

UH

F 1

-25W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-17

C43

07

1pF

NU

Q43

31M

MB

R94

1N

U

100p

FC

4372

NU

2pF

R43

34

NU

0 R43

35

L437

1 1pF

NU

C43

73

R43

37

NU

C43

31

6.8p

F

C43

3451

pF

NU

C43

35

0.1u

FC

4332

C43

37

1pF

C43

39

NU

R43

38

NU

220

R43

4022

0

NU

22

NU

R43

44

R43

450

NU

R43

36

NU

1KNU

1pF

C43

13

NU

0.1u

FC

4381

NU

22K

R43

32

R43

3310

K

NU

10

R43

62

NU

L436

2

33nH

NU

470

R43

81

1pF

C43

74

NU

100p

FN

U

C43

8210

0pF

NU

C43

1710

0pF

NU

C43

750.

1uF

NU

1pF

C43

63

NU

NU

100p

FC

4322

C43

23

NU

0.22

uF

NU

0 V

DC

(T

x)

2.35

VD

C

0 V

DC

(T

x)

4.42

VD

C (

Rx)

NU

NU

(Tx)

4.54

VD

C

-16

to -

11 d

Bm

(T

x)

4 to

6 d

Bm

4.54

VD

C

4.54

VD

C (

Tx)

2.6

VD

C (

Tx)

1.91

VD

C (

Tx)

0 V

DC

(R

x)

2.45

VD

C (

Rx)

(Rx)

2.43

VD

C (

Rx)

NU0 V

DC

(T

x)4.

7 V

DC

(R

x)

0 V

DC

(T

x)

3.1

VD

C (

Rx)

NU

0 V

DC

(R

x)

2.5

- 11

VD

C

0 V

DC

(R

x)

4.58

VD

C

4.58

VD

C

13.5

to 1

6 dB

m

4.97

VD

C (

Tx)

-18

to -

16 d

Bm

(R

x)

TR

B

VC

OM

OD

VS

F

CR

4302

RE

SO

NA

TO

RL4

303

P1

1

P2

2

P3

3

RX

INJ_

UH

F_V

CO

_1

SH

4302

SH

IELD

VC

OM

OD

_UH

F_V

CO

R43

117.

5K

R43

125.

6K

L430

139

0nH

390n

H

C43

0110

0pF

8.2p

F

L430

2

Q43

32

C43

02

12pF

C43

12

R43

13 30R43

1427

0

PR

ES

C

C43

04C

4303

8.2p

F

C43

05

3.9p

F

100p

F

180

R43

04

CR

4321

PR

ES

C_U

HF

_VC

O

RX

INJ

30

R43

03

1.5p

F

100p

FC

4315

5.6K

C43

14

L430

439

0nH

R43

01

VC

OB

IAS

_2_U

HF

_VC

O

TX

INJ

1 3

TR

B_U

HF

_VC

O

Q43

33

2

6 4

CR

4301

VC

TR

L

390n

H

TX

INJ_

UH

F_V

CO

C43

08

0.1u

FL4

305

C43

09

100p

F10

R43

05

C43

5110

0pF

C43

530.

1uF

Q43

01

VS

F_U

HF

_VC

0

VC

OB

IAS

_2

5V

GN

D

2.2u

FC

4354

R43

6118

0

L436

110

00pF

C43

61

L433

1

33nH

C43

52

33nH

0.1u

F

10

TX

_SW

ITC

H13

VC

C_B

UF

FE

RS

14V

CC

_LO

GIC

18

SH

IELD

SH

4301

2R

X_O

UT

8

RX

_SW

ITC

H7

SU

PE

R_F

LTR

3

TR

B_I

N19

TX

_BA

SE

16T

X_E

MIT

TE

R15

TX

_IA

DJ

1T

X_O

UT

4

FLI

P_I

N20

GN

D_B

UF

FE

RS

11G

ND

_FLA

G9

17G

ND

_LO

GIC

PR

ES

C_O

UT

12R

X_B

AS

E5

RX

_EM

ITT

ER

6

RX

_IA

DJ

U43

0150

U54

CO

LL_R

FIN

P2

2

P3

3

CR

4311

RE

SO

NA

TO

RL4

312

P1

1

10

5V_U

HF

_VC

O

10K

C43

06

R43

31

R43

02

22

390n

H

L431

1

390n

H

100p

FC

4311

15nH

L433

2

L433

3

R43

43

10

1K

R43

39

2.2K

R43

42

.022

uFC

4336

51pF

C43

38

51pF

C43

33

51pF

100p

F

0

0

R43

41

1pF

VC

TR

L_U

HF

_VC

O

68nH

56K

C43

21

R43

21

C43

62

CR

4303

R43

46

10K

1000

pF

R43

47

0

L431

3

C43

180.

1uF

C43

83

390n

H

3.9p

FC

4319

3.3p

FC

4365

1K

R43

63

C43

645.

6pF

R43

6027

0

C43

242.

4pF

C43

25

4.7u

F

R43

2310

0K

2.2u

FC

4355

0.1u

FC

4316

0.1u

FC

4371

R43

22

10K

R43

15

0

TX

SW

GR

OU

ND

VS

F

5V

VS

F

TX

SW

RX

SW

RX

SW

VS

F

UH

F (

403-

470

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

ZW

G01

3062

4-O

4-18

UH

F 1

-25W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

C40

601p

F

NU

R40

66

10

NU

NU

100p

F

NU

R40

15

NU

L405

4

R40

5482

0N

U

0

NU

R40

19

NU

12pF

NU

16pF

1pF

NU

Q40

01N

U

0

R40

20

NU

2.2p

FC

4025

NU

RX

INJ

NU

NU

3 to

6.5

VD

C

0.7 VDC

4.6

VD

C

D40

05

3300

pFC

4067

D40

06

R40

61

10K

K9V

1

C40

6133

0pF

1KR40

69

D40

04

10pF

C40

09

100K

54

R40

01

XF

MR

T40

52

123

51R

4051

C40

51

C40

04

10pF

33pF

330

R40

02

3.9K

R40

03

10R40

14

K9V

1_U

HF

_FE

IF_U

HF

_FE

D40

02R

XIN

1000

pFC

4024

L400

8

470n

H

C40

1133

00pF

6.2p

FC

4055

C40

14

10K

R40

05

33pF

C40

20

R40

5310

33pF

C40

22

FE

CT

RL_

2F

EC

TR

L_2_

UH

F_F

E

150n

HL4

051

Q40

04

C40

620.

1uF

C40

1233

0pF

C40

01

470n

HL4

003

1.8p

F

C40

640.

1uF

12pF

R40

64

0

C40

18

12pF

C40

23

0

D40

07

IN

NE

G

PO

SR

4022

R40

17

TB

DL4

005

R40

163.

3K

3.3K

C40

28.0

1uF

R40

18

Q40

02

1.8p

F

9V3_

UH

F_F

E

C40

26

9V3

15nH

Q40

03

R40

042.

7KC

4031

13pF

0

IN NE

G

PO

S

D40

03

L400

4T

BD

C40

0730

pF

33pF TP

4003

IF

C40

06

R40

60

1 2 3

5 4

330K

XF

MR

T40

51

C40

69.0

1uF

FE

CT

RL_

1_U

HF

_FE

1.8p

F

0

C40

27

20pF

C40

66

R40

52

C40

19

R40

7210

K

R40

71

10K

FE

CT

RL_

1

R40

7039

0

RX

IN_U

HF

_FE

D40

01

C40

05

10

33pF

1.8p

F

100p

F

C40

65C

4029

GN

D_U

HF

_FE

R40

6339

0

R40

621.

5K

NE

G

PO

S

GN

D

TB

DL4

002

IN

C40

52

RX

INJ_

UH

F_F

E

330p

F

82pF

C40

10

36pF

C40

03

100p

F

C40

15

R40

1327

0

R40

1210

0K

3300

pF

15nH

C40

13

1.5K

R40

68

L400

6

C40

21

C40

301.

8pF

33pF

100

L400

1

IN

NE

G

PO

SR

4007

27nH

L405

3

TB

D

C40

16

1000

pF

C40

54IO

22

IO33

IO4

4

C40

08

D40

51

IO1

116

pFC

4053

C40

17

1.8p

F

R40

55

820

C40

6810

0pF

C40

02

9V3

9V3

33pF

UH

F (

403-

470

MH

z) R

ecei

ver

Fro

nt

En

d

ZW

G01

3062

5-O

UH

F 1

-25W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-19

9180

469V

03

3VD

C

3.9V

DC

12.

5kH

z 0

VD

C20

/25k

Hz

5V

DC

9180

469V

06

9180

469V

04

0.75

VD

C0.

75V

DC

3VD

C

9180

468v

04

9180

468V

06

U31

11-1

CN

TL 13

12

VD

D

14

VS

S 7

R31

1633

0

MC

74H

C40

66

82pF

C31

12Q

3152

R31

351.

2K

BW

SE

LEC

T_U

HF

_IF

_1

R31

32

DIS

CA

UD

IO_U

HF

_IF

_1

15K

680

R31

46

10K

R31

51

0.1u

FC

3139

C31

320.

1uF

R31

17

27K

IF

Q31

02 10R

3112

1.8K

R31

42

R31

5410

K

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1027

pF

C31

400.

1uF

620n

HL3

111

VD

D

7

VS

S

620

R31

08U

3115

-2

MC

74H

C40

66

5

CN

TL

43

14

0.1u

FC

3144

FL3

111

CF

WC

455G

3GND1

GND2 4

1IN

2O

UT

C31

410.

1uF

R31

338.

2K

1GND1GND2 2GND3 4

5GND4

3IN

6O

UT

FL3

101

12R

16R

3148

0

120p

FC

3143

R31

15

390

R31

18

6.8K

R31

1112

K

5V_U

HF

_IF

_1Q

3151

1IN

2O

UT

R31

02 10

NU

FL3

113

CF

UC

J455

F

3

GND

27K

R31

06

390

R31

41

2.4K

R31

44

R31

04

NU

C31

13

NU

Q31

41

22pF

C31

15

C31

22

.039

uF

R31

07

RFIN_DEC 5RSSIOUT9 RSSI_FEED

6V

CC

6.8K


20MIXOUT

4 OSCIN

3OSCOUT

10 QUADIN

1 RFIN

2

AUDIOOUT7 AUDIO_FEED

GND

15


19 IFAMP_DEC1 17IFAMP_DEC2

14 LIMIN

11LIMOUT

7

SA

616

U31

01

8

MC

74H

C40

66

U31

15-1

CN

TL 13

12

VD

D

14

VS

S

12K

R31

01

IFIN

_U H

F_I

F_1

C31

3310

uF

C31

52.0

1uF

0.1u

FC

3142

DIS

CA

UD

IO

L310

0

0.1u

F

9V3

NU

455K

Hz

3

21

C31

34

33pF

BW

SE

LEC

T

Y31

02

C31

03

R31

52

C31

470.

1uF

10K

0.1u

FC

3111

OU

T6

20pF

C31

01

GND1 12GND24GND3

GND4 5

IN3

30pF

12R

16F

L310

2

33pF

C31

36

C31

35

NU

L312

4

CN

TL

12

1110

VD

D

14 VS

S

7U

3111

-4

.039

uFC

3123

9V3_

VH

F_I

F_2

.01u

FC

3151

51

4700

pFC

3146

R31

30

10K

R31

53

12K

C31

48

R31

47

5

CN

TL

43

14 VD

D

7

VS

S

NU

U31

11-2

MC

74H

C40

66

NU

C31

31

C31

37.0

39uF

3

GND

1IN

2O

UT

RS

SI

FL3

114

CF

UC

J455

D

1110

VD

D14

VS

S

7

0.1u

F

C31

16

1IN

2O

UT

MC

74H

C40

66U

3115

-4

CN

TL

12

5V

FL3

112

CF

WC

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3206

6205

7A77

15K

Ohm

R31

3306

6205

7A71

8200

Ohm

R31

3406

6205

7A73

10K

Ohm

R31

3506

6205

7A51

1200

Ohm

R31

4106

6205

7A39

390

Ohm

R31

4206

6205

7A55

1800

Ohm

R31

4406

6205

7A58

2400

Ohm

R31

4506

6205

7A61

3300

Ohm

R31

4606

6205

7A45

680

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R31

4706

6205

7A75

12K

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R31

4806

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7A61

3300

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2206

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4064

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470

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R40

6806

6205

7A53

1500

Ohm

R40

6906

6205

7A49

1000

Ohm

R40

7006

6205

7A39

390

Ohm

R40

7106

6205

7A73

10K

Ohm

R40

7206

6205

7A73

10K

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R42

0106

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7A29

150

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R42

0306

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4204

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1747

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R42

1106

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2915

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4251

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4223

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2806

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7A73

10K

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4106

6205

7A33

220

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R42

5106

6205

7A87

39K

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R42

5206

6205

7A84

30K

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R42

6106

6205

7A89

47K

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R42

6306

6205

7A25

100

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R43

0106

6205

7A67

5600

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R43

0206

6205

7A73

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R43

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6205

7A12

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4304

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4305

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R43

1106

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7A70

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R43

1206

6205

7A67

5600

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R43

1306

6205

7A12

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4314

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057A

3527

0 O

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4315

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057B

470

Ohm

R43

2106

6205

7A91

56K

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R43

2206

6205

7A73

10K

Ohm

R43

2306

6205

7A97

100K

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R43

3106

6205

7A09

22 O

hmR

4341

0662

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470

Ohm

R43

4206

6205

7A57

2200

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R43

4306

6205

7A49

1000

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R43

4406

6205

7A01

10 O

hmR

4346

0662

057A

7310

K O

hmR

4347

0662

057B

470

Ohm

R43

6006

6205

7A35

270

Ohm

R43

6106

6205

7A31

180

Ohm

R43

6206

6205

7A01

10 O

hmR

4363

0662

057A

4910

00 O

hmR

4381

0662

057A

4147

0 O

hmR

4400

0662

057A

4356

0 O

hmR

4401

0662

057A

3630

0 O

hmR

4402

0662

057A

0515

Ohm

R44

0306

6205

7A36

300

Ohm

R44

0406

6205

7A89

47K

Ohm

R44

0606

6205

7A97

100K

Ohm

R44

1206

6205

7A69

6800

Ohm

R44

1306

6205

7A61

3300

Ohm

R44

1506

6205

7A18

51 O

hmR

4416

0662

057A

1851

Ohm

R44

1806

6205

7A59

2700

Ohm

R44

2106

6205

7A87

39K

Ohm

R44

2206

6205

7A57

2200

Ohm

R44

2306

6205

7A87

39K

Ohm

R44

2406

6205

7C13

2.7

Ohm

R44

2506

6205

7C13

2.7

Ohm

R44

2606

6205

7C13

2.7

Ohm

R44

2706

6205

7C13

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5406

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5506

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7A97

100K

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UHF Band 2 (450-527MHz)

Service Information


i

Table of Contents










ii



2.0 UHF Band 2 1-25W PCBs / Schematics / Parts List............................................4-3UHF Band 2 (450-527 MHz) 1-25W 8485671Z03 Top Side...................................4-3UHF Band 2 (450-527 MHz) 1-25W 8485671Z03 Bottom Side ............................4-4UHF Band 2 (450-527 MHz) Power Amplifier 1 - 25W...........................................4-5UHF Band 2 (450-527 MHz) FRACN .....................................................................4-6UHF Band 2 (450-527 MHz) Voltage Controlled Oscillator ....................................4-7UHF Band 2 (450-527 MHz) Receiver Front End...................................................4-8UHF Band 2 (450-527 MHz) IF...............................................................................4-9UHF Band 2 PCB 8485671Z03 Parts List 1-25W................................................4-10

1-1

Section 1




AZM25SHC9AA1 GM328 450-527 MHz 1-25W

AZM25SHF9AA5 GM338 450-527 MHz 1-25W

AZM25SHN9AA8 GM398 450-527 MHz 1-25W

Item Description




X X IMUE6022_ Tanapa WM 450-527 MHz 1-25W

X IMUE6043 Tanapa WM 450-527 MHz 1-25W


X X X RAE4156_ BNC 470-494 MHz, 3.5 Gain Roof Mount

X X X RAE4157_ BNC 494-512 MHz, 5dB Gain Roof Mount










4128160





Weight GM328/GM338 1400 g

Weight GM398 1500 g





Transmitter UHF




±2.0 ppm

Power 1-25W


FM Hum & Noise-40 dB @ 12.5kHz-45 dB @ 20/25kHz





<3% typical

Receiver UHF







Spurious Rejection (ETS)70 dB @ 12.5 kHz75 dB @ 20/25 kHz


13W External



-45 dB @ 20/25 kHz




+1 to -3 dB


Receiver UHF

2-1

Section 2

THEORY OF OPERATION

1.0 Introduction






Demodulator

1. Crystal Filter




Antenna


from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT


There are two 2-pole 44.85 MHz crystal filters in the high-IF section and 2 pairs of 455 kHz ceramic filters in the low-IF section to provide the required adjacent channel selectivity .The correct pair of ceramic filters for 12.5 or 25 kHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.







The mixer IF output signal (IF) from transformer T5501 pin 2 is fed to the first two pole crystal filter FL3101. The filter output in turn is matched to the following IF amplifier.









The radio’s 25W PA is a three stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U5401) is adjustable, controlled by pin 4 of PCIC (U5501) via U5402-1. It is followed by an LDMOS stage (Q5421) and LDMOS final stage (Q5441).



PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

PADriver



The first stage (U5401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U5401 is controlled by a DC voltage applied to pin 1 from the op-amp U5402-1, pin 1. The control voltage simultaneously varies the bias of two FET stages within U5401. This biasing point determines the overall gain of U5401 and therefore its output drive level to Q5421, which in turn controls the output power of the PA.Op-amp U5402-1 monitors the drain current of U5401 via resistor R5444 and adjusts the bias voltage of U5401 so that the current remains constant. The PCIC (U5501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U5402-1 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q5442, which in turn switches off the biasing voltage to U5401.

Switch S5440 is a pressure pad with a conductive strip which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S5440 opens and the resulting high voltage level at the inverting inputs of the current control op-amps U5402-1 & 2 switches off the biasing of U5401 and Q5421. This prevents transmitter key up while the devices do not have proper thermal contact to the chassis.


The next stage is an LDMOS device (Q5421) providing a gain of 12dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The bias is set during transmit mode by the drain current control op-amp U5402-2, and fed to the gate of Q5421 via the resistive network R5429, R5418, R5415 and R5416.Op-amp U5402-2 monitors the drain current of U5421 via resistors R5424-27 and adjusts the bias voltage of Q5421 so that the current remains constant. The PCIC (U5501) provides a DC output voltage at pin 4 (INT) which sets the reference voltage of the current control loop. A raising power output causes the DC voltage from the PCIC to fall, and U5402-2 adjusts the bias voltage for a lower drain current to lower the gain of the stage.In receive mode the DC voltage from PCIC pin 23 (RX) turns on Q5422, which in turn switches off the biasing voltage to Q5421.

3.3 Final Stage

The final stage is an LDMOS device (Q5441) providing a gain of 12dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set in transmit mode by the ASFIC and fed to the gate of Q5441 via the resistive network R5404, R5406, and R5431-2. This bias voltage is tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Global Tuner. Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via L5436 and L5437.A matching network consisting of C5441-49 and striplines transforms the impedance to 50 ohms and feeds the directional coupler.



The directional coupler is a microstrip printed circuit, which couples a small amount of the forward power delivered by Q5441. The coupled signal is rectified by D5451. The DC voltage is proportional to the RF output power and feeds the RFIN port of the PCIC (U5501 pin 1). The PCIC controls the gain of stages U5401 and Q5421 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

3.5 Antenna Switch


3.6 Harmonic Filter

Components L5491-L5493 and L5472, C5491, C5496-98 form a Butterworth low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R5491 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.7 Power Control



The PCIC provides a DC output voltage at pin 4 (INT) which sets the drain current of the first (U5401) and second (Q5421) transmitter stage via current control op-amps U5402-1 and U5402-2. This adjusts the transmitter power output to the intended value. Variations in forward transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.










DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U5211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U5211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER






A steering line voltage (VCTRL) between 3.0V and 10.0V at varactor diode CR5311 will tune the full TX frequency range (TXINJ) from 450 MHz to 527 MHz, and at varactor diodes CR5301, CR5302 and CR5303 will tune the full RX frequency range (RXINJ) from 405 MHz to 482 MHz. The tank circuits uses the Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q5301 is used in conjunction with the internal transistor for better side-band noise. Similarly, an external transistor Q5311 is used in the Tx tank circuit.

Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U5201 Pin28)

VCC Buffers

TX RF Injection

U5201 Pin 32

AUX3 (U5201 Pin 2)

Prescaler Out

Pin 12Pin 19Pin 20


U5301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U5201 Pin 28)

Rx-SW

Tx-SW

Vcc-Logic

(U5201 Pin 28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q5301

Q5332

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T5051?

RFSignal at C5015?

No

No

RFSignal at C5025?

No or






Istuning voltage

OK?

No

Yes



Yes

Check T5051, T5052, D5051, R5052, L5008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes



No


collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?


U5211 and U0641.

No

No

No

Check U5501.


No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C5009?



Current increase

when keyed?

NO

YES

START




VR3471,Q3471

>500mA & <4A>4A

<500mA


age at TP5402

>1V


NO

YES


Check PA Stages NO

YES


DC?


NO

YES


DC

Replace PCIC U5501

NO

YES

TP5404 9.1V DC



FGU

YES

NO

TP5403 >0.5V DC?

Replace PCIC U5501



NO

YES


DC?






Check PA Stages



>6

YES

DC Voltage at U5501

Pin 23 =0?

2-6


Pin 1?

YES

Pin 2Voltage 0.62 * Voltage at

Pin 1?


NOReplace U5401

YES

NODC


3 = 8.8V?

Check S5440, R5442 and R5443

YES


Pin 1?

NOReplace U5401

<2VDC

Voltage at U5402-2 Pin 7?

>6V




YES

DC Voltage at

U5402-2 Pin 5 <8.8V?



NO

Check Q5422

NO


2-6V





U5401




NO

0V

1-4V


YES


YES


>3V?

Supply

Replace Q5441

Check FGU (U5301)


TP5401 &C5417

NO



U0221



YES


>1V?


C5417 & Q5421

YES


>4V?


Q5421 & Q5441


Voltage



5V at pin 6 of

D5201

Isinformation


?


?

IsU5301 Pin 19


?

Start

Visual check of the

BoardOK?

CorrectProblem


+5Vat U5201

Pins13 & 30

?

Is16.8MHz


?


associated parts

Aresignals

at Pins 14 &15 of U5201

?


IsU5201


in Rx?

Replace U5201

RemoveShorts

Isthere a short


U5201?

Replace orresolder

necessarycomponents

IsRF level at

U5201 Pin 32 -12 < x <-25

dBm?

AreR5221,R5222,R5223,C5221,

C5222,& C5223 OK?

Replace U5201

If C5227is OK, then see VCOtroubleshooting chart

AreWaveforms


?

DoPins 7,8 & 9


changed?


U0101 and U5201Pins 7,8 & 9

Replace U5201


Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YESYESNO

NO

NO

NO

YES

NO

YES

YES

Check D5201, C5202, C5203, &

C5206

5V at U5201

pins 5, 20, 34 & 36

Check 5V Regulator

U5211


U5201 Pin 23?

Replace U5201

YES

NO

NO

YES

NO

YES







Are Q5311 Base = 1.9V

Collector = 4.5VEmitter = 1.3V



OK?


NO

YES

Replace Q5301

at base of Q5332

NO

NO

NO

NO

YES

YES

YES

YES



Is RF available at U5401

YES

YES

YES

YES

NO

NO

NO

NO

NO


4.5VDCat CR5321


Replace C5322

Replace C5325

NO

NO

YES

YES

TX VCORX VCO

CorrectProblem


OK?


and U5301 Pin 19


replace U5301


replace Q5332


OK, Replace U5301


If all parts from U5301 Pin 10U5401 Pin 16 are OK,

replace U5301

Replace Q5311

YES YES


4.5V DC

OK ?

OK? OK?

C5325

at U5301 Pin 14 & 18 4.5V DC

OK ?at U5301 Pin 14 &18

NO

Pin 16

If R5361 and L5361 are OK, replace U5301

4-1

Section 4







Page 4-3Page 4-4




UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

4-3

2.0

UH

F B

and

2 1

-25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

ZM

Y01

3067

7-O

U02

51

98

116

R01

03C

0108

C02

52

R02

51R

0212

R02

57

R02

52

C02

51

C02

12

141

78

U02

11R

0211

R02

53

C02

11

R02

56

R02

68

C02

56

R0269

C0261

C02

62C

0253

U01

21

116 17

32

U01

01

26 51761

R01

32

R01

31

R01

05

R01

14R

0170

R01

06

C0101

C0102

C01

31

C01

32

132537

1

U02

21

Q01

10

R02

21

R02

22

R02

20

R0224

R02

25

R02

41

R0108

R0223

R02

26

R02

27

R02

29

R0442

R02

62

R01

01R

0104

R01

10R

0115

R0254R0255

R02

61

R01

16

R0228

R02

42

R01

02

C02

36

C0221

C0222

C02

23

C02

25

C02

26

C02

27C

0232

C0234

C02

41 C02

42 C02

44C

0245

C0231

C0235C0228

C02

33

C0237

C0441

C0442

C0443

C0445

C0446

C0447

C0448

C0449

C0495

C04

21

C02

46

C0104C0106

C0224

C02

43

C0107

Q06

81

R06

81D02

01

C06

81

C04

96

R06

82U

0651

12

3R

0651

C06

52

C0470

C0474C0476

C0477

C0478

C0490

C0471

C0472

C0473

U06

41

5

6

1

U02

71

9

R0652

D0651

C0651

Q01

77Q

0181

C05

42

4 32Y01

31

Q01

85

R0182

R0186

R05

38

R05

35R0181

R0185

R05

39

VR

0505

R05

10

VR

0503

VR

0510

J050

1

10 1120

VR

0501

C0502C0503C0504

C0505C0506C0508

C0509

C0510

C0511

C0512

C0513C0514

C0515

C0518C0517

C0501

C0516

L048

1

L048

2

C0655

C06

54

C0482C0483

C0486C0487

C0488

C0493

C0494

U54

01

916 1

Q5471

R55

07

R54

71

R55

09

R55

06

R55

08

R55

05R

5401

R54

03

R54

02

TP5401

L540

1

L540

3

C5505

C54

03

C54

01

C54

04

C54

07C

5509

8

R54

75V

R54

71

C54

02

M34

21R

5415

R54

16

L541

1

C54

25C54

17

C54

26

C54

18

C54

19

U06

11

5

6

1R

0611

R0533R

0612

C0612

C06

01

C04

84C

0603

J060

1

C54

22Q

5422

Q54

42

Q54

11

R5424

R5425

R5426

R5427

R54

50

L542

2

C54

28

C54

23

C54

24C

5420

C54

35

R54

31R

5432

C54

34C54

58

C54

31

C54

54 C54

57

C54

55

C54

32

87

65

43

2Q

5431

C54

48

C54

49

R5404R5406

D54

01

U55

02

C55

07C

5508

C54

41

C54

61

C54

46C

5443

C54

45C

5447

C54

42

C54

44

L549

1

C54

91

C54

62L5

472

D54

71C

5492

C54

96C

5498

32

J540

1

R54

91

C54

97

L549

3

L500

2L5

001

Q50

01Q

5003

R5020

R5021

R5007

R50

01

R5005

R50

22

R5064

R5003

R50

04

L500

6

L5003

D50

03

D5002

C50

09

C5014

C5033

C5034

C5065

C5003

C5008

C50

01C5004

C5005C5006

C5007

C5026

C5027

C50

02

L500

4

R5066

D5004

C50

15

C5068

C50

17

C50

16

C5029

D50

06

D5005

C5030

C50

18

R50

12

C5020

C5022

C5023

C5019

C5021

L500

5R

5013

L500

9C50

32

R50

15

R50

51

L505

1

C50

52

L547

1

D54

72

C54

72

C54

73

C54

74

D5001

65

432

FL3

101

R31

48L310

0

C31

01

2

T50

5216

4 3

D50

51L5

008

L505

3

L505

4

C50

53

C50

54

3 451

T50

51

2

C50

31

C50

55

65

432

FL3

102

R31

06

R31

01

L310

1

C31

02

C31

03

141

78 U

3111

141

78 U

3115

2Y

3102

R31

32

R31

42

R31

17

R31

23

R31

24

R31

30

R31

35R

3144

R31

45

R31

11L3

124

U31

01

10

201

11

C31

32

C31

34C

3139

C31

40

C31

41

C31

42

C31

45

C31

33

C31

15

C31

31

C31

48

C31

37C

3124

C31

35

C31

43

C31

36F

L311

2

23 4

FL3

114

C31

14

C52

24

Q5221

R52

24

R5225

R52

27

R52

23

R5222 R52

21

L5221

D5221

C5251

C52

53

C52

31

C5225

C52

29

C52

21

C5230

C5236

C52

23

C52

26

C52

27

C5222

R5252

R5251C5254

C5232

C5234

C5255

C5252

C5233

R52

11

L520

1

U52

11

C52

42

C52

43

C52

44

C52

45

C52

46

C52

13

C52

14C

5215

C52

10

C52

16

C5289C5217

1

J045

1

18

Q53

333

4R

5346

C53

75

L530

3

3

L531

2

3

Q53

01Q

5311

R5321

R5305

R53

02

R5301

R53

11

R53

12

L5304L5305

L531

3

C5308

C5352

C53

53

C53

25

C5309

C5317

C5322

C5351

C5372

C5382

C5383

C53

23

C5373

C5374

C53

55

C5318

C5371

L5371

SH

5301

R53

43

R53

33

R53

37R53

41

R53

45

R53

32R

5331

C53

32

C53

35C

5339

C53

31

C53

37

UH

F B

and

2 (

450-

527

MH

z) 1

-25W

848

5671

Z03

To

p S

ide

4-4

UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

ZM

Y01

3067

8-D

Y31

012 3

4

Q31

02

R31

12R

3114

R31

15

R31

13

R31

16R

3118

L311

2

D31

01C

3116

C31

21

C31

22C

3123

Q31

41

Q31

51

Q31

52

R31

33

R31

34

R31

51

R31

52

R31

53R

3154

R31

41R31

47

R31

46

C31

44

C31

47

C31

51

C31

52C

3146

FL3

111

2

34

FL3

115

234

FL3

113

Q31

01R

3102

R31

04R

3105

R31

08R

3107

L311

1

C31

04

C31

1111

C3112C3110

C3113R

5474

C54

71

C50

25

C54

75

R54

57

Q50

04

Q50

02R

5069

R50

62

R50

68

R50

61

R50

71

R50

72

R50

63

R5070

R50

17R5002

R50

16

R50

18

D50

07

C50

62

C50

64

C50

11

C5013

C50

67

C50

28

C5069

C50

61 C50

10C5012

R50

53

R50

60

R50

52

R50

54

R50

55T

P50

03

C50

66

C50

24C

5060

R50

19

R54

55R

5454

R54

52T

P54

03

D54

51C

5453

C54

51

C54

52

TP

5404

TP

5405

S5440

L540

2L5

436

TP

5406

L543

7

C5406

C54

38C5421

C5437

C54

81

C54

39C5482

C54

36

C54

05

32

Q54

21

1R

5420

C54

29

R54

42 R54

29

R5417

R54

40

R54

21 R5423R54

41

R54

43

R54

28

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45

R54

11

R54

18

R5422

R54

12

R55

11

854

1U

5402

C5411

C54

13C

5415

C04

99

C5427

C5412

C54

14

C54

16

C54

40

C06

11

432

Y52

62

R5228

R52

61

R5241

R52

63

R52

03

R52

04

R5201

R5206

R5262

Y52

61

134

6

TP

5201

TP

5202

L5231

1325 37

1

U52

01

D52

01

D5261

C5208C5209C5211

C52

28

C5263

C52

88

C52

02

C52

03

C5205

C52

35

C5201 C52

04

C5207

C5241

C5287

C52

06

C5262C5261

Q5472 R54

00

R54

73

C54

00

R55

02R

5504

R5446R5413

R55

01

L542

1

TP5402

25

917

U55

011

C55

01

C5502

C55

06

C55

03

C5510

C5483

C55

04

12

J040

1

R0407

R0409

R0467

R0412

R0441

F0401

C0426

C0427

C0429

C0485C04

91

C04

92

C04

97

C0422

C0423

C0430

C0431

C0428

R03

44

R03

23

R0324

R03

45

R03

41

C0304

C0305

C0324

C0325

C03

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U03

518

5 4

U03

01

11415

28D

0301

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0351 C03

54C

0352C0301

C03

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31 Q06

41

R06

42

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35

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43

R0331

R0332

R0333

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41

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81

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82

C03

31

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53

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41

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62

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1

16

TP

0101

C0141

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68

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TP

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2

181 C

0103

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8 54

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854

1U

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31

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2

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1

10

CR

5302

CR

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C5301C5307

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16

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04

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02

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R5381

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14

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R5322

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42

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44

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62

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63

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39

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60

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L533

3

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1

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2

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C53

63

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67

UH

F B

and

2 (

450-

527

MH

z) 1

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848

5671

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Bo

tto

m S

ide

UH

F B

and

2 1-

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PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

4-5

ZM

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3067

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257

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D54

519V

3FLT

A+

30pF

C54

7330

pFC

5472

C54

5211

pF12

0R

5457

R54

7351

5.6V

23 1

C54

7110

0pF

VR

3471

NC

Q54

72

R54

7147

0

Q54

71

47K 47

K

MO

SB

IAS

_1

1TP

5402

R54

46 0

C54

37.0

33uF

C54

3610

uF57

R01

L543

6C

5482

30pF

A+

J340

1 -

BN

C

J540

1-2

L549

317

nHJ5

401-

1

J540

1-5

J540

1-4

J540

1-3

C54

975.

6pF

10K

R54

91

4.7p

FC

5496

17nH

L547

2

17nH

L549

1

3.3p

FC

5498

100p

FC

5492

6.8p

FC

5491

D54

71

RE

SE

T_U

HF

_PA

_1K

9V1

FE

CT

RL_

2

FE

CT

RL_

1_U

HF

_PA

_1

FE

CT

RL_

2_U

HF

_PA

_1F

EC

TR

L_1

K9V

1_U

HF

_PA

_1

RE

SE

T

9V3F

LT

RX

IN_U

HF

_PA

_1

C54

75

5.1p

FC

5474

RX

IN

NU

1

TP

5404

C55

09

NU

470p

F

24

19

23

17

20

18

2221NC_U3501_22

NC_U3501_19

47K

R55

07

9V3F

LT

3.9K

R55

09

R55

0820

0K

C55

0222

00pF

NC

_U35

01_2

.015

uFC

5504

300K

R55

05

2200

pFC

5506

VAR3

15V

G

VL 6VLIM

RX T1 2

TE

MP

30

14V

10

V45

16

V5EXT

VAR1

VAR2

GN

D2

25

INT 4NA

Q11

QX

10

RFIN 1

RS

RS

ET

31

CJ 5

CL 7

CLK

26

CQ

1213C

QX

DA

TA28

F16

89

GND1 8

U55

01H

99S

-4

AN

O32

BP

OS

27C

EX

29

CI 3

C55

051u

F

NC

_U35

01_1

5

NC

_U35

01_1

3 NC

_U35

01_1

2N

C_U

3501

_11

NC

_U35

01_1

0N

C_U

3501

_9

9V3F

LT10

KR

5504

CLK

DA

TA_U

HF

_PA

_1

CLK

_UH

F_P

A_1

CS

X_U

HF

_PA

_1

DA

TAC

SX

CN

TLV

LTG

CN

TLV

LTG

_UH

F_P

A_1

R54

133.

3K

PA

_PW

R_S

ET

_UH

F_P

A_1 P

A_P

WR

_SE

T

TE

MP

SE

NS

E

NU

R55

06

U55

08

C55

0347

0pF

100p

FC

5510

1POS V

OU

T2

U55

02LM

50

GND 3

100p

FC

5507

100K

R55

02

1

TP

5405

6.8K

R55

01C

5508

100p

F

2200

pFC

5501

9V3F

LT

7.5

C54

47

C54

414.

7pF

7.5p

FC

5445

C54

43N

U30

pFC

5448

C54

4927

pF

C54

46

C54

44C

5442

18pF

NU

NU

NU

UH

F B

and

2 (

450-

527

MH

z) P

ow

er A

mp

lifie

r 1

- 25

W

4-6

UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

5V_U

HF

_FN

_25V

_UH

F_F

N_1

5V(S

OU

RC

E)

C52

0410

0pF

C52

0110

0pF

6A

25

A3

4

1K

1

2K

2

3K

3

D

5201

A1

6.6

Vdc

10.8

7 V

dc

12.7

Vdc

C52

03.0

1uF

.01u

FC

5202

150

R52

01

LOC

K

LOC

K_U

HF

_FN

_1

VC

TR

L

VC

TR

L_U

HF

_FN

_1

2.5

to 1

0 V

dc

5 V

dc (

lock

ed)

0 V

dc (

unlo

cked

)1

TP

5201

150

R52

21

.01u

FC

5221

510

R52

22

C52

8710

0pF

.01u

FC

5205

C52

231u

FC

5224

1uF

NU

R52

2368

C52

2551

0pF

C52

220.

1uF

12uH

L522

1

VC

OM

OD

_UH

F_F

N_1

TR

B_U

HF

_FN

_1

TR

B

BW

SE

LEC

T_U

HF

_FN

_1

BW

SE

LEC

T

16_8

MH

z

VC

OM

OD

16_8

MH

z_U

HF

_FN

_1

4.97

Vdc

(25

KH

z C

ha, S

pa)

0 V

dc (

12.5

KH

z C

ha, S

pa)

3.09

Vdc

(R

x)2.

65 V

dc (

Tx)

0 V

dc (

Rx)

4.97

Vdc

(T

x)

10uF

C52

06

47R52

04

C52

07

R52

0347

NU

0.1u

FC

5208

R52

06N

U

C52

090.

1uF

C52

132.

2uF

390n

HL5

201

5V 2.2u

FC

5210

R52

11 0

.01u

FC

5217

C52

16.0

1uF

OU

T

3S

D

AD

P33

00U

5211

6E

RR

1 GND

5IN

2N

R4

NU4.

97 V

dc

R52

2447

K

IN_5

V_R

F_R

EG

IN_5

V_R

F_R

EG

_UH

F_F

N_1

C52

152.

2uF

C52

110.

1uF

47K

R52

28

C52

28C

5246

100p

FN

U

D52

21

WA

RP

25

27S

FC

AP

26

SF

OU

T28

TE

ST

137

TE

ST

238

VB

PA

SS

21

PD_GND44

32P

RE

IN

PRE_GND33

RE

FS

EL

18

SF

BA

SE

IND

MU

LT16

IOU

T434

LOC

K

NC

117

NC

229

NC

331

CC

OM

P42

6DGND

IAD

AP

T45

AGND22

AU

X1

48

AU

X2

1

AU

X3

2

AU

X4

3B

IAS

140

BIA

S2

39

AD

AP

TS

W46

VM

ULT

1V

MU

LT2

14

VM

ULT

312

VM

ULT

411

13VRO

XTA

L12324

XTA

L2

SF

IN30

VCP47

15

5PD_VDDPRE_VDD

34

PV

RE

F35

MO

DIN

10

MO

DO

UT

41C

EX

9C

LK8

DA

TA7

DVDD36

FR

EF

OU

T19

AVDD20

U52

0163

A27

C52

4410

0pF

100p

FC

5242

4.98

Vdc

2.51

Vdc

4.95

Vdc

0 V

dc

47K

R52

61

R52

4122

0

1.25

Vdc

1.97

Vdc

C52

4110

0pF

NU

2.48

Vdc

2.48

Vdc

0.1u

FC

5289

C52

880.

1uF

NU

C52

62

1GND

4GND1

3O

UT

6IN16

.8M

Hz

C52

61

R52

6310

0

R52

621.

2K

.01u

FD

5261

C52

510.

1uF

2G

ND

3OUT

4V

CC

1VCNTL

16.8

MH

zT

TS

05V

Y52

62.0

1uF

C52

35

C52

63 0.

1uF

5V

NU

NU

NU

NU

75Z

04Y

5261

NU

C52

34.0

1uF

C

5231

C52

32.0

1uF

2.2u

FC

5233

Q52

21C

5236

.047

uF

R52

2547

K

47K

47K

R52

5230

K

C52

302.

2uF

1T

P52

02

C52

2710

pF

100K

R52

27

39K

R52

51

3.03

Vdc

-19

to -

17 d

Bn

(Rx)

-17

to -

12 d

Bn

(Tx)

3.76

Vdc

1.76

Vdc

1.69

Vdc

(R

x)

4.7u

FC

5253

C52

540.

1uF

C52

5210

00pF

10

0pF

C52

55

4.57

VdcC

5226

2.4p

F2p

FC

5229U

4506

NU

2.2u

HL5

231

10

0pF

C52

43C

5245

100p

FV

DD

A

MO

DIN

_UH

F_F

N_1

DA

TA_U

HF

_FN

_1

CS

X

VS

F_U

HF

_FN

_1

CS

X_U

HF

_FN

_1

VS

F

CLK

DA

TA

MO

DIN

CLK

_UH

F_F

N_1

VC

OB

IAS

_2

VD

DA

PR

ES

C

VD

DA

_UH

F_F

N_1

U45

07

2.2u

FC

5214

VD

DA

ZM

Y01

3067

5-O

HF

Ban

d 2

(45

0-52

7 M

Hz)

FR

AC

N

UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

4-7

ZM

Y01

3067

4-O

R53

015.

6KR

XS

W4.2

Vdc

(R

x)0

Vdc

(T

x)

R53

0210

K0.

22uF

C53

71C

5372

100p

FN

U

C53

05N

UC

5306

2pF

L530

439

0nH

4.3p

FC

5303

C53

045.

6pF

C53

024.

3pF

CR

5302

CR

5303

220n

HL5

302 C

R53

01L5

301

68nH

68nH

L531

1

C53

1710

0pF

100p

FC

5301

NU

VC

TR

L_U

HF

_VC

OR

5315

0

2.5

to 1

0 V

dc

100p

FC

5311

CR

5311

C53

160.

1uF

15pF

C53

12

VC

OM

ODV

CO

MO

D_U

HF

_VC

O4.

7uF

C53

25

VC

TR

L

C53

2310

00pF

56K

R53

21

C53

2210

0pF

NU

NU

C53

211p

F

R53

226.

8K

CR

5321

3pF

C53

24R

5323

10K

VS

F

NU

4.5

Vdc

P22

P3

3

RE

SO

NA

TO

RL5

303

P1

1

R53

0330

R53

0415

0

100p

FC

5307

R53

11

TX

SW

0 V

dc (

Rx)

4.5

Vdc

(T

x)

7.5K

0.22

uFC

5318

L531

339

0nH

R53

127.

5K

3pF

C53

14

100p

FC

5315

R53

1422

0

Q53

11

0 V

dc (

Rx)

1.9

Vdc

(T

x)

P1

1

P22

P3

3

RE

SO

NA

TO

RL5

312

C53

13N

UR

5313

30

C53

8210

0pF

0.1u

FC

5381

TX

SW

0 V

dc (

Rx)

4.5

Vdc

(T

x)

NU

TR

B_U

HF

_VC

OR

5381

470

TR

B

0 V

dc (

Rx)

4.5

Vdc

(T

x)

TX

_OU

T

TX

_SW

ITC

H

VCC_BUFFERS14

VCC_LOGIC18

RX

_IA

DJ

2R

X_O

UT

RX

_SW

ITC

H

SU

PE

R_F

LTR

3

TR

B_I

N19

TX

_BA

SE

16

TX

_EM

ITT

ER

15

TX

_IA

DJ

1

CO

LL_R

FIN

4

FLI

P_I

N20

GND_BUFFERS11GND_FLAG9

17GND_LOGIC

PR

ES

C_O

UT

RX

_BA

SE

5

RX

_EM

ITT

ER

6U

5301

50U

54

10 138 7124.

5 V

dc (

Rx)

2.58

Vdc

(T

x)

100p

FC

5383

39nH

C53

65L536

2

3.3p

FR

XS

W

NU

4.2

Vdc

(R

x)0

Vdc

(T

x)

10R53

35

PR

ES

C

PR

ES

C_U

HF

_VC

ON

U

NU

R53

470

R53

3310

KR

5334

0

C53

3451

pF

NU

NU

0.1u

FC

5308

L530

539

0nH

C53

0910

0pF

R53

0510

VS

FV

SF

_UH

F_V

C0

VS

F

4.5

Vdc

Q53

01

2.3

Vdc

(R

x)0

Vdc

(T

x)

100p

FC

5351

0.1u

FC

5352

2.2u

FC

5354

2.2u

FC

5355

C53

6110

0pF

0.1u

FC

5353

33nH

L533

1

R53

6118

0

390n

HL5

361

0.22

uFC

5362

270

R53

60C

5364

5.6p

FNU

1KR

5363

VS

F

C53

74

C53

63

NUN

U

NU

C53

73

L537

168

nH5.

6pF

C53

314

dBn

(Tx)

R53

6210

C53

320.

1uF

C53

33

22K

R53

32L5

332

15nH

R53

361K

NU

NU

NU

NU

51pF

NU

TX

INJ_

UH

F_V

CO

Q53

31R

5331

22

TX

INJ

NU

R53

370 N

U

5V_U

HF

_VC

O

VC

OB

IAS

_2_U

HF

_VC

O

C53

7510

KR

5346

VC

OB

IAS

_2

5VN

U

Q53

33

0R

5341

4.7K

47K

47K 10

K4.

5 V

dc (

Rx)

0 V

dc (

Tx)

51pF

C53

37

R53

422.

2KL5

333

390n

H

C53

36.0

22uF

R53

4410

22R

5339

R53

431K

220

R53

38

100p

FC

5335

Q53

32

NU

NU

51pF

C53

38

220

R53

40

NU

R53

45C

5339

RX

INJ

RX

INJ_

UH

F_V

CO

>14

dB

n (R

x)

NU

NU

SH

IELD

SH

5302

1

SH

IELD

SH

5301

1

GN

D

UH

F B

and

2 (

450-

527

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

4-8

UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

ZM

Y01

3067

2-O

FE

CT

RL_

2

9V3

RX

IN

K9V

1

9V3

C50

6733

00pF

K9V

1_U

HF

_FE

RX

IN_U

HF

_FE

9V3_

UH

F_F

E

D50

07

IN

NEGPOS

C50

25N

U

TB

DL5

001

C50

261p

F

1KR50

69

C50

011.

5pF1.

5KR

5068

C50

1033

0pF

C50

0233

pF

D50

02D

5001

1pF

C50

27

FE

CT

RL_

2_U

HF

_FE

10K

R50

61

C50

620.

1uF

330p

FC

5061

3.3K

R50

16

TB

D IN

NEGPOSL500

2

R50

17N

U

C50

0322

pFC

5005

16pF

C50

0416

pFC

5006

16pF

100K

R50

0116

pFC

5007

FE

CT

RL_

1F

EC

TR

L_1_

UH

F_F

E33

0KR

5060

C50

60C

5008

1000

pFN

U

RX

INJ

RX

INJ_

UH

F_F

E15

nH15

nHL5

054

L505

3

16pF

C50

54C

5053

6.8p

FC

5055

TP

5003 N

U

T50

52X

FM

R

4 6

3 12

1IO

12

IO2

3IO3

4IO4

D50

51T

5051

XF

MR

1 2 3

5 4

C50

5282

pF

R50

5151

470n

HL5

008

C50

66

IF_U

HF

_FE

L505

115

0nH

IF

NU

0R50

52R

5053 R

5055

R50

54N

U

NU

NU

0.7

VD

C4.6

VD

C

L500

615

nH

2.7K

R50

04

C50

098.

2pF

D50

03

R50

034.

7K

100p

FC

5034

Q50

01

R50

2010

R50

21C

5033

1010

0pF

Q50

03C

5020

16pF

C50

1927

pFC

5021

18pF

C50

2216

pFC

5023

R50

1210

0KN

U

1000

pFC

5024

R50

19N

UG

ND

_UH

F_F

E

GN

D

Q50

02

270n

HL5

003

.01u

FC

5028

R50

183.

3K

C50

1333

00pF

330p

FC

5012

0R50

22

330

R50

02

3300

pFC

501

100p

FC

5014

10K

R50

05

0R

5064

R50

6339

0

C50

6510

0pF

R50

0710

0

R50

66

D50

06

NU

L500

4

IN

NEGPOS

TB

D10

0pF

C50

68

C50

16

C50

1510

0pF

NU

C50

291p

F

D50

04

1.5p

FC

5017

D50

05

C50

1833

pF

1pF

C50

30

TB

D IN

NEGPOSL500

5

8.2p

FC

5032

L500

915

nHR

5015

R50

13N

UN

U8.

2pF

C50

31

Q50

04

1.5K

R50

62

0.1u

FC

5064

10K

R50

7210K

R50

71

.01u

FC

5069

390

R50

70

9V3

3 to

6.5

VD

C

UH

F B

and

2 (

450-

527

MH

z) R

ecei

ver

Fro

nt

En

d

UH

F B

and

2 1-

25W

PC

Bs

/ Sch

emat

ics

/ Par

ts L

ist

4-9

ZM

Y01

3067

3-O

5V_V

HF

_IF

_1

9V3

9V3_

VH

F_I

F_2

5V

9V3_

VH

F_I

F_1

5V

IFIF

IN_V

HF

_IF

_13

IN6

OU

T

FL3

101

12R

16

1GND1GND2 2

GND3 45GND4

620n

HL3

100

NU

20pF

C31

01

R31

480

C31

0333

pF

15pF

C31

02L3

101

620n

H

R31

0112

K

3VD

C

0.75

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GM338/GM398Mobile Radios

Low Band

Service Information


i

Table of Contents


1.0 GM338 Model Chart.............................................................................................1-12.0 Technical Specifications ......................................................................................1-2


1.0 Introduction ..........................................................................................................2-12.0 Low Band Receiver..............................................................................................2-1

2.1 Receiver Front-End ........................................................................................2-12.2 Front-End Band-Pass Filters and Pre-Amplifier .............................................2-22.3 First Mixer and High Intermediate Frequency (IF)..........................................2-22.4 High Intermediate Frequency (IF) and Blanker Switches ...............................2-22.5 Low Intermediate Frequency (IF) and Receiver Back End.............................2-32.6 “Extender” (Noise Blanker) .............................................................................2-3

3.0 Transmitter Power Amplifier (PA) 60 W...............................................................2-43.1 Power Controlled Stage..................................................................................2-43.2 Driver Stage....................................................................................................2-53.3 Final Stage .....................................................................................................2-53.4 Antenna Switch...............................................................................................2-53.5 Harmonic Filter ...............................................................................................2-53.6 Power Control.................................................................................................2-63.7 TX Safety Switch ............................................................................................2-6

4.0 Frequency Synthesis ...........................................................................................2-74.1 Fractional-N Synthesizer ................................................................................2-74.2 Voltage Controlled Oscillator (VCO) and Buffers ...........................................2-84.3 Synthesizer Operation ....................................................................................2-9


1.0 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)......................................3-12.0 Troubleshooting Flow Chart for Transmitter ........................................................3-33.0 Troubleshooting Flow Chart for Synthesizer........................................................3-44.0 Troubleshooting Flow Chart for VCO...................................................................3-5

ii

Section 4 Low Band PCBs/Schematics/Parts Lists


2.0 Low Band PCBs / Schematics / Parts Lists .........................................................4-3Low Band Range 1 (29.7-36.0 MHz) 8486206B06 Top Side .................................4-3Low Band Range 1 (29.7-36.0 MHz) 8486206B06 Bottom Side ............................4-4Low Band Range 1 (29.7-36.0 MHz) 8486206B08 Top Side .................................4-5Low Band Range 1 (29.7-36.0 MHz) 8486206B08 Bottom Side ............................4-6Low Band Range 2 (36.0-42.0 MHz) 8486207B05 Top Side .................................4-7Low Band Range 2 (36.0-42.0 MHz) 8486207B05 Bottom Side ............................4-8Low Band Range 2 (36.0-42.0 MHz) 8486207B07 Top Side .................................4-9Low Band Range 2 (36.0-42.0 MHz) 8486207B07 Bottom Side ..........................4-10Low Band Range 3 (42-50 MHz) 8486908Z02 Top Side .....................................4-11Low Band Range 3 (42-50 MHz) 8486908Z02 Bottom Side ................................ 4-12Low Band Range 3 (42-50 MHz) 8486908Z04 Top Side .....................................4-13Low Band Range 3 (42-50 MHz) 8486908Z04 Bottom Side ................................ 4-14Low Band Range 1 (29.7-36.0 MHz) Synthesizer FRACN...................................4-15Low Band Range 2 (36.0-42.0 MHz) Synthesizer FRACN...................................4-16Low Band Range 3 (42-50 MHz) Synthesizer FRACN......................................... 4-17Low Band Range 1 (29.7-36.0 MHz) Voltage Controlled Oscillator .....................4-18Low Band Range 2 (36.0-42.0 MHz) Voltage Controlled Oscillator .....................4-19Low Band Range 3 (42-50 MHz) Voltage Controlled Oscillator ........................... 4-20Low Band Range 1 (29.7-36.0 MHz) Power Amplifier - Sheet 1 of 2 ...................4-21Low Band Range 1 (29.7-36.0 MHz) Power Amplifier - Sheet 2 of 2 ...................4-22Low Band Range 2 (36.0-42.0 MHz) Power Amplifier - Sheet 1 of 2 ...................4-23Low Band Range 2 (36.0-42.0 MHz) Power Amplifier - Sheet 2 of 2 ...................4-24Low Band Range 3 (42-50 MHz) Power Amplifier - Sheet 1 of 2 .........................4-25Low Band Range 3 (42-50 MHz) Power Amplifier - Sheet 2 of 2 .........................4-26Low Band Range 1 (29.7-36.0 MHz) Receiver Front End ....................................4-27Low Band Range 2 (36.0-42.0 MHz) Receiver Front End ....................................4-28Low Band Range 3 (42-50 MHz) Receiver Front End ..........................................4-29Low Band Range 1/2 Controller - T6

(for PC Boards 8486206B06 & 8486207B05) .............................................. 4-30Low Band Range 3 Controller-T9 (for PC Board 8486908Z02)............................4-31Low Band Range 1/2/3 Controller - T11 (for PC Boards 8486206B08, 8486207B07 &

8486908Z04 ) ...............................................................................................4-32Low Band Range 1 and 2 IO - T6 (for PC Boards 8486206B06 & 8486207B05..4-33Low Band Range 3 IO - T9 (for PC Board 8486908Z02) .....................................4-34Low Band Range 1/2/3 IO - T11 (for PC Boards 8486206B08, 8486207B07 &

8486908Z04 ................................................................................................. 4-35Low Band Range 1/2/3 (29.7-36.0/36.0-42.0/42-50 MHz) - Audio .......................4-36Low Band Range 1/2/3 (29.7-36.0/36.0-42.0/42-50 MHz) - Supply Voltage ........4-37

iii

Low Band Range 1/2/3 - IF sheet 1 of 2 (for PC Boards 8486206B06, 8486207B05 & 8486908Z02) ................................................................................................4-38




Low Band Range 1/2/3 (29.7-36.0/36.0-42.0/42-50 MHz) - Noise Blanker ..........4-42Low Band Range 1 PCB 8486206B06 Parts List .................................................4-43Low Band Range 2 PCB 8486207B05 Parts List ................................................4-49Low Band Range 3 PCB 8486908Z02 Parts List .................................................4-54Low Band Range 1 PCB 8486206B08 Parts List .................................................4-60Low Band Range 2 PCB 8486207B07 Parts List .................................................4-66Low Band Range 3 PCB 8486908Z04 Parts Lis ..................................................4-72

iv


1-1

Section 1


1.0 GM338 Model Chart

GM Series, Low Band Model Description

AZM25BKF9AA5 GM338 29.7-36.0 MHz 40-60W

AZM25CKF9AA5 GM338 36.0-42.0 MHz 40-60W

AZM25DKF9AA5 GM338 42.0-50.0 MHz 40-60W

Item Description

X X X GCN6114_ Preferred Control Head Direct Mount

X IMUB6000_ Tanapa WM 29.7-36.0 MHz 40-60W



X RAB4002 Low Band 29.7-36.0 MHz, 1/4 Wave Base Loaded



X X X 6804112J06 GM338 User Guide






Channel CapacityGM338 128


Dimensions: H x W x D (mm) Depth excluding knobs GM33860mm x 179mm x 250mm (45 - 60W)

Weight GM338 2064 g






Transmitter Low Band

*Frequencies - Full BandsplitLow Band 1 29.7-36.0 MHzLow Band 2 36.0-42.0 MHzLow Band 3 42.0-50.0 MHz



±5 ppm

Power 40-60W

Modulation Limiting±2.5 @ 12.5 kHz

±5.0 @ 20/30 kHz


-45 dB @ 20/30kHz

Conducted/Radiated Emission -26 dBm <1 GHz

Adjacent Channel Power-60 dB @ 12.5 kHz

-70 dB @ 20/30 kHz


Audio Distortion@1000Hz, 60%Rated Maximum Deviation

<3% typical

Receiver Low Band

*Frequencies - Full BandsplitLow Band 1 29.7-36.0 MHzLow Band 2 36.0-42.0 MHzLow Band 3 42.0-50.0 MHz



Intermodulation >80 dB


Adjacent Channel Selectivity 65 dB @ 12.5 kHz

80 dB @ 20/30 kHz

Spurious Rejection 70 dB @ 12.5 kHz

80 dB @ 20/30 kHz

Rated Audio 7.5W and 13W External



-45 dB @ 20/30 kHz

Audio Response (300 - 3000Hz @ 20kHz) +1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the Low Band circuits in the radio. For details of the theory of operation and troubleshooting for the the associated Controller circuits refer to the Controller Section of this manual.

2.0 Low Band Receiver


The low band receiver, shown in Figure 2-1, is bandsplit into three ranges depending on radio model, covering frequencies from 29.7 to 36.0 MHz, 36.0 to 42.0 MHz, or 42.0 to 50.0 MHz. The circuitry of the three models is identical except for component value differences. The receiver consists of five major blocks: front-end bandpass filters and pre-amplifier, first mixer, high-IF and blanker switches, low-IF and receiver back-end, and “Extender” (noise blanker). Two fixed-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the high-IF of 10.7 MHz. High-side first injection is used.

Figure 2-1 Low Band Receiver Block Diagram

Demodulator

Delay Filter

MixerFixed

Tuned FilterRF Amp

Tuned Filter


Antenna

First LORXINJ

Recovered Audio

RSSI

IF

Second LO

Crystal Filter

455kHz Filter455kHz Filter



Swit

ch

Swit

ch

Switc

h

Swit

ch

Limiter

IF Amp

IF Amp


BlankerNoise

Blanking Pulses

Gate

Buffer

Enable

1stFixed

(25/20kHz)

BWSELECT

(U1201 Pin 48)

4-pole

(25/20kHz)

2-2 Low Band Receiver

There are two 2-pole 10.7 MHz crystal filters in the high-IF section and two switched pairs of 455 kHz ceramic filters in the low-IF section to provide the required adjacent channel selectivity.The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.

2.2 Front-End Band-Pass Filters and Pre-Amplifier

The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver 5-pole antenna filter (L1001-L1005 and associated components). This filter configuration provides more rapid attenuation above the passband to provide better rejection of the half-IF spurious response. A dual hot carrier diode (D1001) limits any inband signal to 0 dBm to prevent damage to the RF pre-amplifier.

The RF pre-amplifier is an SMD device (Q1001) with collector-base feedback to stabilize gain, impedance, and intermodulation. Transistor Q1002 compares the voltage drop across resistor R1005 with a fixed base voltage from divider R1006 and R1007, and adjusts the base current of Q1001 as necessary to maintain its collector current constant at 25 mA. Operating voltage is from the regulated 9.3V supply (9V3). During transmit, 9.1 volts (9T1) turns on both transistors in U1001, turning off Q1003 and therefore Q1001-2. This protects the RF pre-amplifier from excessive dissipation during transmit mode.

A second 5-pole fixed-tuned bandpass filter provides additional filtering of the amplified signal. This filter configuration also provides steeper attenuation above its passband for best half-IF attenuation.


The signal coming from the front-end is converted to the high-IF frequency of 10.7 MHz using a cross over quad diode mixer (U1051). The high-side injection signal (RXINJ) from the frequency synthesizer circuitry is filter by a 7-pole low-pass filter (L1012-14 and associated circuitry) which removes second harmonic content from the injection signal and improves half-IF rejection. The 50-ohm output of the first mixer is applied to the input of the high-IF circuit block.

2.4 High Intermediate Frequency (IF) and Blanker Switches

The first mixer IF output signal (IF) is applied to diplexer network consisting of L1101, L1111 and associated components. This network has three functions: it terminates the mixer output at frequencies other than 10.7 MHz into 51-ohm resistor R1101; it matches the 50-ohm mixer output to the first IF amplifier (Q1101) input; and it provides bandpass filtering at 10.7 MHz to prevent the 5.35 MHz half-IF component of the mixer output from creating a second harmonic at 10.7 MHz in Q1101, which degrades half-IF rejection.

The IF amplifier Q1101 uses ac and dc feedback to stabilize gain and quiescent current (approximately 28 mA). Operating voltage is from the regulated 9.3V supply (9V3). Its output is applied to a 10.7 MHz ceramic filter FL1101 which has a 3 dB bandwidth of 270 kHz and provides a time delay of 2.6 usec. This delay allows enough time for the “Extender” to respond to impulse noise present at the input of Q1101 and operate the blanker switches Q1102 and Q1103, muting the IF signal for the duration of the noise pulse. L1104 and L1105 also provide additional selectivity and time delay. Operation of the “Extender” circuit is explained in Section 1.0.5 below.

When the blanker switches turn “on” to mute the IF signal, they momentarily change the impedance of resonant circuits L1104 and L1105 from high to very low. This abrupt impedance change, if

Low Band Receiver 2-3

presented to the high-Q crystal filter FL1102, would cause ringing of the filter response, stretching an otherwise narrow impulse into a long and audible output waveform. Therefore, source follower stage Q1104 isolates the blanker switches from the crystal filters, providing a consistent source impedance via matching network L1106, L1107 and associated components. Q1104 has unity voltage gain in this configuration.

Crystal filter F1102 is a module which consists of two 2-pole, 10.7 MHz units configured to provide an overall 4-pole response having a 3 dB bandwidth of approximately 12 kHz. The output is amplified by second IF amplifier Q1106 and applied to the low-IF circuitry, pin 1 of IF IC (U1103). A dual hot carrier diode (D1101) limits the amplifier output voltage swing to prevent overdriving the IF IC at RF input levels above -27 dBm.


The 10.7 MHz high-IF signal from the second IF amplifier feeds the IF IC (U1103) at pin 1. Within the IF IC, the 10.7 MHz high-IF signal mixes with the 10.245 MHz second local oscillator (2nd LO) to produce the low-IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y1101. The low-IF signal is amplified and filtered by external pairs of 455 kHz ceramic filters (FL1105 and FL1107 for 20kHz channel spacing, or FL1104 and FL1106 for 12.5 kHz channel spacing). Selection of the appropriate filter pair is accomplished by U1101 and U1102, controlled by the BWSELECT line from pin 48 of the synthesizer IC U1201. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y1102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U1103 pin 8 (AUDIOOUT) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuitry).

A received signal strength indicator (RSSI) signal is available at U1103 pin 5, having a dynamic range of 70 dB. The RSSI is interpreted by the microprocessor (U0101 pin 63) and in addition is available at accessory connector J0501-15.

2.6 “Extender” (Noise Blanker)

The 10.7 MHz output from the first mixer, which is present at the input of the first IF amp Q1101, is also routed to the input of the “Extender” (noise blanker) circuitry and amplified by FET Q1610. The high input impedance of the FET stage minimizes loading of the signal in the receiver path. The output of Q1610 is further amplified by U1601, which is a wide-bandwidth, high gain differential amplifier (used in a single-ended configuration) incorporating an AGC gain control input. This gain block provides linear amplification of the instantaneous amplitude of the 10.7 MHz signal at the first mixer output. The output of U1601 is coupled to biased-detector Q1603. The bias is set so that noise impulses of a significant amplitude cause Q1603 to conduct. The following stages (Q1604 through Q1606) provide additional gain and pulse shaping which slows the turn-on and turn-off waveform applied to IF blanker switches Q1102 and Q1103. The result is that, for each noise impulse, the IF signal is smoothly ramped off and then on again, preventing the pulse from reaching the narrow IF selectivity, where ringing would cause an objectionable spike at the detector of a much longer duration than the original impulse.

If the repetition rate of noise impulses is so rapid that the noise blanker can no longer blank them individually, as indicated by a large increase in high-frequency content at the output of Q1604, stage Q1607 amplifies this level and turns on level detector Q1609. Its output is highly filtered into a DC voltage level which is proportional to the repetition rate of noise impulses, and this is applied to the

2-4 Transmitter Power Amplifier (PA) 60 W

AGC input pin 5 of U1601, reducing its gain and therefore the amount of noise pulses which are detected and processed.

3.0 Transmitter Power Amplifier (PA) 60 W

The radio’s 60W power amplifier (PA), shown in Figure 2-2, is a three-stage amplifier used to amplify the output from the VCO to the radio transmit level. The line -up consists of three stages which utilize LDMOS technology. The first stage is pre-driver (U1401) that is controlled by pin 4 of PCIC (U1503) via Q1504 and Q1505 (CNTLVLTG). It is followed by driver stage Q1401, and final stage utilizing two devices (Q1402 and Q1403) connected in parallel. Q1402 and Q1403 are in direct contact with the heat sink.

To prevent damage to the final stage devices, a safety switch has been installed to prevent the transmitter from being keyed with the cover removed.

Figure 2-2 Low Band Transmitter Block Diagram

3.1 Power Controlled Stage

The first stage (U1401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U1401 is controlled by a DC voltage applied to pin 1 from the power control circuit (U1503 pin 4, with transistor Q1504-5 providing current gain and level-shifting). The control voltage simultaneously varies the bias of two FET stages within U1401. This biasing point determines the overall gain of U1401 and therefore its output drive level to Q1401, which in turn controls the output power of the PA.


Antenna

Harmonic Filter

PA-FinalStage

PADriver

From VCO

ControlledStage

BIAS

To Microprocessor

TemperatureSense

DC AMP

PASUPLVLTG

(2 Lines)

SPI Bus

TXINJ

SenseCurrent

SenseCurrent

ASFIC_CMPPCICINT

24

4 295 6

BIAS

Power

Power Adjust

Transmitter Power Amplifier (PA) 60 W 2-5

3.2 Driver Stage

The next stage is an LDMOS device (Q1401) providing a gain of 13dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_1 is set during transmit mode by the PCIC pin 24, and fed to the gate of Q1401 via resistors R1402, R1447, R1449, R1458, R1459, and R1463. The bias voltage is tuned in the factory.

The circuitry associated with U1402-2 and Q1404 limits the variation in the output power of the driver stage resulting from changes in the input impedance of the final stage due to changes at the antenna of the radio. The variation in the driver’s output power is limited by controlling its DC current. The driver’s DC current is monitored by measuring the voltage drop across current-sense resistors R1473-6, and this voltage is compared to a reference voltage on pin 6 of U1402-2. If the current through the sense resistors decreases, the circuit increases the bias voltage on the gate of Q1401 via Q1404. If the current increases, then the bias voltage decreases in order to keep the driver’s current constant. Since the current must increase with increasing control voltage, an input path is provided to U1402-2 pin 5 from control line VCNTRL to enable this.

3.3 Final Stage

The final stage uses two LDMOS FET devises operating in parallel. Each device has its own adjustable gate bias voltage, MOSBIAS_2 and MOSBIAS_3, obtained from D/A outputs of the ASFIC. These bias voltages are also factory-tuned. If these transistors are replaced, the bias voltage must be tuned using the Tuner software. Care must be taken not to damage the device by exceeding the maximum allowed bias current. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via current-measurement resistor R1409.

A matching network combines the output of the two devices and provides a 50-ohm source for the antenna switch and harmonic filter.

3.4 Antenna Switch

The antenna switch is operated by the 9T1 voltage source which forward biases diodes D1401 and D1402 during transmit, causing them to appear as low impedance. D1401 allows the RF output from final stages Q1402 and Q1403 to be applied to the input of the low-pass harmonic filter (L1421-3 and associated components). D1402 appears as a short circuit at the input of the receiver (RXINJ), preventing transmitter RF power from entering the receiver. L1420 and C1456 appears as a broadband-wave transmission line, making the short circuit presented by D1402 appear as open circuit at the junction of D1401 and the harmonic filter input.

During receive mode, the 9T1 voltage is not present, and D1401 and D1402 do not conduct and appear as open circuits. This allows signals from the antenna jack to pass to the receiver input, and disconnects the transmitter final stages from this path.

3.5 Harmonic Filter

Components L1421- L1423 and C1449-C1455 form a seven-pole elliptic low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R1411 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.


3.6 Power Control

The transmitter uses the Power Control IC (PCIC, U1503) to control the power output of the radio. A differential DC amplifier U1502-1 compares the voltage drop across current-measuring resistor R1409, which is proportional to the transmitter final stage DC current, with the voltage drop across resistors R1508 and R1535, which is proportional to the current through transistor Q1503. This transistor is controlled by the output of the differential amplifier, which varies the transistor Q1503. This transistor is controlled by the output of the differential amplifier, which varies the transistor current until equilibrium of the two compared voltages is reached. The current through Q1503 develops a voltage across R1513 which is exactly proportional to the DC current of the final stages. This voltage is applied to the RF IN port of the PCIC (pin 1).

The PCIC has internal digital to analog converters (DACs) which provide a reference voltage of the control loop. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuitry.

The PCIC provides a DC output voltage at pin 4 (INT) which is amplified and shifted in DC level by stages Q1504 and Q1505. The 0 to 4 volt DC range at pin 4 of U1503 is transferred to a 0 to 8 volt DC range at the output of Q1505, and applied as VCNTRL to the power-adjust input pin of the first transmitter stage U1401. This adjusts the transmitter power output to the intended value. Variations in antenna impedance cause variations in the DC current of the final stages, and the PCIC adjust the control voltage above or below its normal value to reduce power if current drain increases, or raise power if current drain decreases.

Capacitors C1503-4 and C1525, in conjunction with resistors and integrators within the PCIC, control the transmitter power-rise (key-up) and power-decay (de-key) characteristic to minimize splatter into adjacent channels.

U1501 is a temperature-sensing device which monitors the circuit board temperature in the vicinity of the transmitter circuits and provide a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be reduced so as to reduce the transmitter temperature.

3.7 TX Safety Switch

The TX Safety Switch consists of S1501, Q1506, and diode pairs D1502 and D1503 providing protection to the final stage divices Q1402 and Q1403. These final stage devices can be degraded or destroyed if the radio is keyed without the cover in place due to the lack of a good thermal path to the chassis.

Switch S1501 is closed when the radio’s cover is screwed in place by means of the carbonized reqion on the cover’s pressure pad making contact with the finger plating on the radio’s PCB. With the cover in place, transistor Q1506 is off, back-biasing diodes D1502 and D1503, enabling proper transmitter operation. When the cover is not in place, S1501 opens, causing Q1506 to rurn on, pulling the cathodes of D1502 and D1503 to ground, resulting in the shorting of the transmitter’s bias lines and control voltage.

Frequency Synthesis 2-7

4.0 Frequency Synthesis

The frequency synthesizer subsystem, shown in Figure 2-3, consists of the reference oscillator crystal (Y1201), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U1201), and the receive and transmit VCOs and buffers (Q1303 through Q1308 and associated components).

Figure 2-3 Low Band Synthesizer Block Diagram


The LVFRAC-N synthesizer IC (U1201) consists of a reference oscillator, pre-scaler, a programmable loop divider, control divider logic, phase detector, a charge pump, A/D converter for low frequency digital modulation, a balance attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13V positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 9.3 volt supply.

Regulated 9.3 volts DC applied to the super filter input (U1201, pin 30) delivers a very low noise output voltage of 8.3 volts DC (VSF) at pin 28. External device Q1201 allows greater current sourcing capability. The VSF source supplies the receive and transmit VCOs and first buffer stages. The synthesizer IC supply voltage is provided by a dedicated 5V regulator (U1250) to minimize power supply noise.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U1201 pin 47), a capacitive voltage multiplier circuit (CR1202 and C1209) generates a voltage

DATA

CLK

CEX

MODIN

SFIN

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


9,3V (U641 PIN 5)

7

8

9

10

30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 8,3V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 13, 20, 34, 36+5V (U3211 PIN 1)

AUX1

VDD, DC5V MODOUT

U1201

LOW VOLTAGEFRACTIONAL-N

SYNTHESIZER

AUX2


LO RF INJECTION


LINE2-POLELOOP

FILTER

1

Q1202

BUFFER

BWSELECT

VCTRL

N.C.N.C.

2-8 Frequency Synthesis

of 13 volts DC. This multiplier is driven by two 1.05 MHz clock signals from U1201 pins 15 and 14 (VMULTI1 and VMULTI2) which are 180 degree out of phase.

Output LOCK (U1201-4) provides information about the lock status of the synthesizer loop. A high level at this output indicates a stable loop. A buffered output of the 16.8 MHz reference frequency is provided at pin 19.

The operating frequency of the synthesizer is loaded serially from the microprocessor via the data line (DATA, U1201-7), clock line (CLK, U1201-8) and chip select line (CSX, U1201-9).

The reference oscillator circuit within U1201 uses an external 16.8 MHz crystal (Y1201). Varactor CR1201 allows software-controlled frequency adjustments (warp) and temperature compensation of the oscillator frequency. Warp adjustment is performed using serial data from the microprocessor. This controls the setting of an A/D converter, with its output (WARP, pin 25) applied to CR1201.

4.2 Voltage Controlled Oscillator (VCO) and Buffers

Separate voltage controlled oscillator (VCO) and buffer circuits, shown in Figure 2-4, are used for receiver injection and transmitter carrier frequency generation. Since the receiver uses high-side injection, the receiver VCO frequency range is 10.7 MHz above the transmit VCO range. The VCO/buffers are bandsplit into three ranges depending on radio model, covering radio operating frequencies of 29.7 to 36.0 MHz, 36.0 to 42.0 MHz, or 42.0 to 50.0 MHz. The corresponding three frequency ranges from the receive VCO are 40.4 to 46.7 MHz, 46.7 to 52.7 MHz, and 52.7 to 60.7 MHz.

Figure 2-4 Low Band VCO Block Diagram

STEERINGLINE

(VCTRL)

RXVCOQ1303

Q1306TXVCO

AGC

AGC

Q1304

Q1307 Q1308

Q1305BUFFER BUFFER

BUFFERBUFFER

1ST RX 2ND RX

2ND TX1ST TX

TXINJ

RXINJ

TO Q1202PRESCALER BUFFER

(TO 1ST MIXER)

(TO U1401 PIN16)

SFOUT(U1201 PIN28)

U1377-8DC SWITCH

RX (TO Q1303-5)

TX (TO Q1306-8)

(U1201 PIN2)

~

~


The VCOs, together with Fractional-N synthesizer U1201, generates the required frequencies for transmit and receive modes. The TRB line (U1201, pin 2) determines which VCO/buffer circuit is to be enabled. A high level on TRB will turn on the transistors in U1378 to turn on via R1376, applying the 8.3 volt VSF source to the receiver VCO and first buffer. The second buffer in each string operates from the 9V3 source and become active when RF is applied to their inputs.

The RF signal at the bases of the second buffers are combined and fed back to the Fractional-N synthesizer via PRE_IN where it is compared to the reference frequency as described below in “Synthesizer Operation”. The Fractional-N IC provides a DC steering voltage VCTRL to adjust and maintain the VCO at the correct frequency.

With a steering voltage from 2.5V to 11V at the appropriate varactor diode (CR1302 for the RX VCO, or CR1310 for the TX VCO), the full VCO tuning range is obtained. Each VCO uses and AGC circuit to maintain a constant VCO output level across the frequency band. A diode (CR1306 in the receive VCO, or CR1314 in the transmit VCO) is configured as a voltage doubler which rectifies the RF level sampled at the VCO drain and applies a proportional negative DC voltage to the VCO gate. Increased RF level reduces the VCO gain to compensate.

The VCO output is taken from the source and applied to the first buffer transistor (Q1304 receive, Q1307 transmit). The first buffer output is further amplified by the second buffer transistor (Q1305 receive, Q1308 transmit) before being applied to the receiver first mixer or transmitter first stage input.

In TX mode the modulation signal coming from the LVFRAC-N synthesizer IC (MODOUT, U1201 pin 41) is superimposed on the DC steering line voltage by capacitive divider C1215, C1208 and C1212, causing modulation of the TX VCO using the same varactor as used for frequency control.


The complete synthesizer subsystem comprises mainly of low voltage LVFRAC-N synthesizer IC, Reference Oscillator (crystal oscillator with temperature compensation), charge pump circuitry, loop filter circuitry, and voltage controlled-controlled oscillators and buffers. A sample of the VCO operating signal PRE_IN is amplified by feedback buffer Q1202, low-pass filtered by L1205, C1222 and C1224, and fed to U1201 pin 32 (PREIN).

The pre-scaler in the synthesizer (U1201) is basically a dual modulus pre-scaler with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the serial interface to the microprocessor. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator, whose frequency is controlled by Y1201.

The output signal of the phase detector is a pulsed DC signal which is routed to the charge pump. The charge pump outputs a current at pin 43 of U1201 (IOUT). The loop filter (consisting of R1205-6, R1208, and C1212-14) transforms this current into a voltage that is applied to varactor diodes (CR1310 for transmit, CR1302, for receive) and alters the output frequency of the appropriate VCO.The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U1201-40) or BIAS 2 (U1201-39). The currents are set by the value of R1211 or R1207 respectively. The selection of the three different bias sources is done by software programming.


To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer the magnitude of the loop current is increased by enabling the IADAPT (U1201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U1201-4).

In order to modulate the PLL the two-spot modulation method is utilized. Via pin 10 (MODIN) on U1201, the audio signal is applied to both the A/D converter (low frequency path) and the balanced attenuator (high frequency path). The A/D converter converts the low frequency analog modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U1201-41) and superimposed on the VCO steering line voltage by a divider consisting of C1215, C1208 and C1212.

3-1

Section 3




No Recovered Audio

START

Audio at pin 8 of U1103?

Check Controller (in the case of no audio).Or else go to “B”

Yes

No

Spray or inject 10.7MHz into XTAL Filter FL1102.

Audio heard?BYes

No

Check 2nd LO (10.245MHz) at C1129.

LO present?BYes

Check volt-ages on

U1103. OK?

Biasing OK?

No

No

A

Yes

Check Q1106 bias for faults.

Replace Q1106.

Go to B

Yes

No

Check cir-cuitry around U1103. Replace U1103 if defect.

Check circuitry around Y1101. Replace Y1101 if defect.

3-2 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)


IF Signal at pin 2 of U1051

No

RF Signal at pin 3 of U1051?

RF Signal at C1017?

No

RF Signal at C1013?

No

RF Signal at C1002?

No or

Check harmonic filters J1401 and ant.switch

Check preselector and RF amp.


No

Yes


Check filter between C1017 & mixer U1051

Yes

Check for detailed mixer.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes


Check for bad XTAL filter.

No

Yes IF signal at Q1106 collec-

tor?


U1103 voltages.

Yes

Is 9V3 present?

Check Supply Voltage cir-cuitry. Check U0681, U3211 and U0641.

No

No

YesA

B

weak RF

Troubleshooting Flow Chart for Transmitter 3-3

2.0 Troubleshooting Flow Chart for Transmitter

No

DC Voltage@ Gate of

Q1401

No

Yes

START

No or Low

TX DC Voltage

@Drains of

Q1402 &Q1403

@ Cathode of D1401 &D1402

DC Voltage

Drains of Q1402 &AC Voltages @

Q1403 both sine orboth distorted

Check 9T1 andDiode Bias Circuit

Verify RF Continuity

to gates of

Q1402 & Q1403

Check circuitrybetween Q1402 &

Q1403 and Antenna Port

CheckMOSBIAS_1Supply andFeed Network

No

<<18V pp

Yes

No

Yes

< 1 A

No

CheckQ1401Device

Yes

CURRENT

RF @Junction

R1413 & R1414

DC Voltage@ TP1402 &

TP1403

Yes

CheckMOSBIAS_2MOSBIAS_3

and Feed Networks

Check DC/ACGate Circuitsof Q1402 & Q1403

Check Supply Feedand/or PowerControlCircuits.

No

>18V pp

CheckU1401Device

AC Voltage@ Gate of

Q1401

Yes

DC Voltage@ U1401

Yes

No

Power Out

> 1 A

Look for

short on

Supply Line

Check Pressure Pad

and/or

Switch Circuitry

Yes

NoTX

Safefy

Switch



5V at pin 6 of CR1202

Is informationfrom uP U0101

correct?

Is U1201 Pin 47at = 13VDC

Is U1377, Pin 2<.1VDC in RX &

>4.5 VDC in TX? (at VCO section)

Start


CorrectProblem

Check 9.3VR e gu la to rU0641

+9.3V at U1201Pin 30?

Is 16.8MHzSignal at

U1201 Pin 19?

Check Y1201, C1204, C1206,C1207,

CR1201. & R1203

Are signalsat Pin’s 14 &15 of U1201?

Check R1218

Check C3319

Is U1201 pin 2>4.5 VDC in Tx & <.1

VDC in Rx

Replace U1201

RemoveShorts


Pins 14 & 15 ofU1201?

Replace orresolder

necessarycomponents

Is RF level atU1201, Pin 32

-5 < x < 0 dBm?

Are R1205, R1206, R1208, C1212,

C1213 & C1214 OK?

Replace U1201

If Q1202 Feedback Amp stage is OK, Then see VCO troubleshoot-

ing chart


triangular?

Do Pins 7,8 & 9of U1201 togglewhen channel is

changed?


and U1201 Pins 7,8 & 9

Replace U1201

Check uP U0101Troubleshooting

Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YES

YES

NO

NO

NO

NO

YES

NO

YES

YES

Check D3201, C3203, C3205, & C3206

5V at U1201 pins 5, 13, 20,

24 & 36

Check 5V Reg-ulator U1250, L1201

& R1201


U1201 pin 23?

Replace U1201

YES

NO

NO

YES

NO

YES



LOW OR NO RF SIGNAL AT U1051

VISUAL CHECKOF BOARD

OK?

8.5V DC AT U1378 PIN 3

<,1 V DC ATU1377 PIN 2

8.5V DC AT

U1378 PIN 4

CORRECTPROBLEM

NO

YES

MAKE SURE SYNTHESIZER ISWORKING CORRECTLY ANDRUNNER BETWEEN U1201 PIN

3 of U1377 & U1378.

CHECK RUNNERBETWEEN U1201 PIN 2

AND U1377 PIN 2

IS RF AVAILABLE AT BASE OF Q1304

TROUBLESHOOT Q1303 OSCILLATOR STAGE CIRCUITRY

IS RF AVAILABLE

CHECK PARTS BETWEEN U1051

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES

RX VCOLOW OR NO RF SIGNAL

AT INPUT TO PA

VISUAL CHECKOF BOARD

OK?

8.5V DC ATU1378 PIN 3



IS RF AVAILABLE AT BASE OF Q1307

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

TX VCO

AND Q1305

AT BASE Q1305TROUBLESHOOT Q1304

BUFFER STAGE CIRCUITRY

MAKE SURE U1377 AND U1378ARE WORKING CORRECTLY.

IS RF AVAILABLEAT BASE OF Q1308

A

BNO

YES

CHECK PARTS BETWEENU1401 AND Q1308

4-1

Section 4

LOW BAND PCBS/SCHEMATICS/PARTS LISTS



The Low Band circuits are contained on the Printed Circuit Board (PCB) which also contains the Controller circuits. This Chapter shows the schematics for the Low Band circuits only, refer to the Controller section for details of the related Controller circuits . The PCB component layouts and the Parts Lists in this Chapter show both the Controller and Low Band circuit components. The Low Band schematics and the related PCB and parts list are shown in the tables below.

Table 4-1 Low Band Range 1 (29.7-36.0MHz) Diagrams and Parts Lists


Page 4-3Page 4-4

SCHEMATICSPower Amplifier 40 - 60WFRACNVoltage Controlled OscillatorReceiver Front EndController - T6IO - T6

Page 4-15 and Page 4-16Page 4-9Page 4-12Page 4-21Page 4-24Page 4-26


Table 4-2 Low Band Range 2 (36-42 MHz) Diagrams and Parts Lists


Page 4-5Page 4-6

SCHEMATICSPower Amplifier 40 - 60WVoltage Controlled OscillatorReceiver Front EndFRACN

Page 4-17 and Page 4-18Page 4-13Page 4-22Page 4-10



Table 4-3 Low Band Range 3 (42-50MHz) Diagrams and Parts Lists


Page 4-7Page 4-8

SCHEMATICSPower Amplifier 40 - 60WVoltage Controlled OscillatorReceiver Front EndController - T9FRACNIO - T9

Page 4-19 and Page 4-20Page 4-14Page 4-23Page 4-25Page 4-11Page 4-27


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R12

06

470

51R12

16

R12

03

150K

27pF

C12

22

0

R12

21

DA

TA

.01u

F

C12

2820

0pF

C12

03

VS

F_F

RA

CN

_1

FN

0:N

P

MO

DIN

_FR

AC

N_1

R12

20

47

2.2u

F

C12

50

C12

1568

00pF

16.8

MH

z

GN

D2

OU

T3

4

VC

C

1V

CN

TL

L120

6

VC

TR

L

FN

0:N

PT

TS

05V

Y12

02

R12

02

FN

0:N

P

27uH

1O

UT

PU

T

2S

EN

SE

3S

HU

TD

OW

N

1.2K

U12

50LP

2951

65V

_TA

P

5E

RR

OR

7F

EE

DB

AC

K

GN

D 4

8IN

PU

T.018

uFC

1252

CS

X_F

RA

CN

_1

C12

024.

7uF

470K

BW

SE

LEC

TR

1211

68R12

15

TR

B

C12

0815

00pF

FN

0:N

P

R12

2210

0

C12

340.

1uF

FN

0:N

P

C12

33.0

1uF

FN

0:N

P

DA

TA

_FR

AC

N_1

3.3K

R12

09

VS

F

1.5p

FC

1207

C12

130.

22uF

FL0

8306

85O

Lo

w B

and

Ran

ge

1 (2

9.7-

36.0

MH

z) S

ynth

esiz

er F

RA

CN

4-16

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

8.7V

DC

2.2V

DC

7.6V

DC

1.5V

DC

-5 to

0 d

Bm

4.9V

DC

(LO

CK

ED

)0V

DC

(U

NLO

CK

ED

)

2.5

- 11

VD

C

2.5

- 11

VD

C

0VD

C (

R),

4.7

VD

C (

T)

2.9V

DC

, 0.4

6Vpp

13.1

VD

C

2 -

3 V

DC

CO

MM

EN

T: T

HE

NO

ISE

_BLN

KR

LIN

E IS

RE

QU

IRE

D B

EC

AU

SE

IT

IS R

OU

TE

D T

HR

OU

GH

TH

E F

racN

FR

OM

TH

E C

ON

TR

OLL

ER

.

4.7u

FC

1202

BW

SE

LEC

T

TR

B

470K

R12

11

R12

1568

FN

0:N

P2

GN

D

3O

UT

4

VC

C

1V

CN

TL

FN

0:N

P

16.8

MH

zT

TS

05V

Y12

02

C12

08

100

R12

22

DA

TA

_FR

AC

N_1

1500

pF

R12

093.

3K

1.5p

F

VS

F

C12

07

R12

06

0.22

uFC

1213

470

R12

1651

150K

R12

03

DA

TA

C12

2224

pF

R12

21

0

.01u

FC

1203

VS

F_F

RA

CN

_1

200p

FC

1228

FN

0:N

P

MO

DIN

_FR

AC

N_1

47

R12

20

2.2u

F

C12

15

C12

50

FN

0:N

P

6800

pF

FN

0: N

P0.

1uF

C12

34

VC

TR

L

.01u

FC

1233

1.2K

L120

627

uH

SE

NS

E2

SH

UT

DO

WN

3

FN

0:N

P

R12

02

5V_T

AP

6

ER

RO

R5

FE

ED

BA

CK

7

4GND

INP

UT

8O

UT

PU

T1

C12

52.0

18uF

LP29

51U

1250

CS

X_F

RA

CN

_1

L120

556

0nH

5V

MM

BT

3906

Q12

01

R12

17

100

TE

ST

_PO

INT

TP

1201

VC

TR

L_F

RA

CN

_1

CS

X

C12

2482

pF

0.1u

F

C12

10

62pF

C12

06

C12

27.0

1uF

C12

19

4.7u

F

4.7u

F

PR

E_I

N_F

RA

CN

_1

C12

530.

1uF

C12

51

NO

ISE

_BLN

KR

_FR

AC

N_2

NO

ISE

_BLN

KR

BW

SE

LEC

T_F

RA

CN

_1

NO

ISE

_BLN

KR

_FR

AC

N_1

Q12

02

MM

BR

951

PR

E_I

N

C12

204.

7uF

.01u

FC

1217

FN

0:N

P

C12

164.

7uF

R12

04

SH

IELD

SH

1201

16_8

MH

Z_F

RA

CN

_1

MO

DIN

0

SH

IELD

SH

1202

FN

0:N

P

16_8

MH

Z

5V_F

RA

CN

_1

CLK

FN

0:N

P

C12

211p

F

10uF

C12

09

C12

25.0

1uF

0.1u

FC

1201

220

R12

10

680

R12

05

0.1u

FC

1218

27uH

C12

12

L120

1

.01u

F

1uF

.01u

FC

1230

47

R12

18

C12

29

TR

B_F

RA

CN

_1

CR

1201

R12

01

0

.039

uFC

1232

FN

0: N

P

R12

0782

0K

FN

0:N

P

1

C12

54.0

1uF

Y12

01

XT

AL

16.8

MH

z

2

.033

uFC

1214

9V3_

FR

AC

N_1

47

R12

19

C12

26

FN

0:N

OT

PLA

CE

D

9V3

CLK

_FR

AC

N_1

1uF

FN

0:N

P

LOC

K_F

RA

CN

_1

C12

051p

F

5V_F

RA

CN

_2

C12

23

.01u

F

R12

08

L120

7

FN

0:N

P

51

1.6K

LOC

K

2.2u

H

VM

ULT

311

VM

ULT

4

VRO13

25W

AR

P

23X

TA

L124

XT

AL2

R12

14

SF

IN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

47 VCP

15V

MU

LT1

14V

MU

LT2

12

5

32P

RE

IN

33PRE_GND

34 PRE_VDD

35P

VR

EF

18R

EF

SE

L

27S

FB

AS

E

26S

FC

AP

30

IOU

T

LOC

K4

10M

OD

IN

41M

OD

OU

T

17N

C1

29N

C2

31N

C3

44PD_GND

PD_VDD

CE

X

8C

LK

7D

AT

A

6DGND

36 DVDD

19F

RE

FO

UT

45IA

DA

PT

16IN

DM

ULT

43

AU

X1

1A

UX

22

AU

X3

3A

UX

4

20 AVDD

40B

IAS

139

BIA

S2

42C

CO

MP

9

63A

27U

1201

46A

DA

PT

SW

22AGND

48

L120

2

2.2u

H

L120

427

uHF

N0:

NP

K2

K3

.01u

FC

1231

CR

1202

A1

A2

A3

K1

R12

1368

0

R12

1210

0

C12

11

C12

04

.01u

F

IN_5

V_R

F_R

EG

IN_5

V_R

F_R

EG

_FR

AC

N_1

220p

F

FL0

8306

08O

Lo

w B

and

Ran

ge

2 (3

6.0-

42.0

MH

z) S

ynth

esiz

er F

RA

CN

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

17

Com

men

t: T

he N

OIS

E_B

LNK

R li

ne is

req

uire

d be

caus

e it

is r

oute

d th

roug

h th

e F

racN

from

the

Con

trol

ler.

-5 t

o 0

dB

m

8.7V

DC

7.6V

DC

1.5V

DC

2.2V

DC

13.1

VD

C

2-3

VD

C

2.5

- 11

VD

C

0VD

C (

R),

4.7

VD

C (

T)

2.5

- 11

VD

C

4.9V

DC

(L

OC

KE

D)

0VD

C (

UN

LO

CK

ED

)

4.9V

DC

2.9V

DC

, 0.4

6Vp

p

C12

11

.01u

F

C12

04

220p

F

IN_5

V_R

F_R

EG

IN_5

V_R

F_R

EG

_FR

AC

N_1

FN

0:N

P

16_8

MH

Z

5V_F

RA

CN

_1

1pF

C12

21

FN

0:N

P

C12

0910

uF

OU

TP

UT

2S

EN

SE

3S

HU

TD

OW

N

1500

pF

C12

08

U12

50LP

2951

65V

_TA

P

5E

RR

OR

7F

EE

DB

AC

K GND 4

8IN

PU

T1

680

R12

13

CS

X_F

RA

CN

_1

L120

5

5V

100

FN

0:N

P

330n

H

0.1u

FF

N0:

NP

R12

22

.01u

FF

N0:

NP

C12

34

16.8

MH

z

FN

0:N

PG

ND

VC

C

VC

NT

L

2

OU

T3

4

1

C12

33

TT

S05

V

Y12

02

100

R12

17

TP

1201

Q12

01

16.8

MH

zX

TA

L

Y12

01

21

C12

14.0

33uF

R12

19

47

9V3

9V3_

FR

AC

N_1

CLK

_FR

AC

N_1

FN

0:N

P

C12

261u

F

82pF

C12

24

CS

X

VC

TR

L_F

RA

CN

_1

C12

10

0.1u

F

C12

02

4.7u

F

BW

SE

LEC

TR

1211

470K

68R12

15

TR

B

5V_F

RA

CN

_2

R12

0851

FN

0:N

P

L120

72.

2uH

1.6KR12

14

LOC

K

VM

ULT

115

VM

ULT

214

VM

ULT

312

VM

ULT

411

13 VRO

WA

RP

25

XT

AL1

23

XT

AL2

24

SF

BA

SE

27S

FC

AP

26

SF

IN30

SF

OU

T28

TE

ST

137

TE

ST

238

VB

PA

SS

21

VCP47

NC

331

PD_GND 44

5 PD_VDD

PR

EIN

32

PRE_GND33

PRE_VDD34

PV

RE

F35

RE

FS

EL

18IA

DA

PT

45

IND

MU

LT16

IOU

T43 4

LOC

K

MO

DIN

10

MO

DO

UT

41

NC

117

NC

229

BIA

S2

39

CC

OM

P42

CE

X9

CLK

8

DA

TA

7

DGND 6

DVDD36

FR

EF

OU

T19

AD

AP

TS

W46

AGND22

AU

X1

48

AU

X2

1

AU

X3

2

AU

X4

3

AVDD20

BIA

S1

40

U12

0163

A27

L120

4

2.2u

H

L120

2

FN

0:N

P27

uH

A2

A3

K1

K2

K3

C12

31.0

1uF

CR

1202

A1

FN

0:N

P

SH

1201

SH

IELD

MO

DIN

R12

04

0

SH

1202

SH

IELD

16_8

MH

Z_F

RA

CN

_1

MO

DIN

_FR

AC

N_1

CLK

FN

0:N

P

.01u

FC

1225

C12

010.

1uF

R12

1022

0

680

R12

05

R12

12

.018

uFC

1252

L120

6

VC

TR

L

100

FN

0:N

P

27uH

1.2K

R12

02

.01u

F

C12

30.0

1uF

C12

29

TR

B_F

RA

CN

_1

R12

18

47

CR

1201

0

R12

01

FN

0:N

P

C12

32.0

39uF

FN

0:N

P

820K

R12

07

.01u

FC

1254

0

R12

21

DA

TA

C12

03.0

1uF

C12

2820

0pF

VS

F_F

RA

CN

_1

FN

0:N

P

0.1u

F

PR

E_I

N_F

RA

CN

_1

62pF

C12

51

C12

27

C12

06

.01u

F

C12

194.

7uF

4.7u

FC

1253

LOC

K_F

RA

CN

_1

C12

23

FN

0:N

P1p

FC

1205

NO

ISE

_BLN

KR

_FR

AC

N_2

NO

ISE

_BLN

KR

.01u

F

NO

ISE

_BLN

KR

_FR

AC

N_1

Q12

02

BW

SE

LEC

T_F

RA

CN

_14.

7uF

C12

20

.01u

F

PR

E_I

N

C12

16C

1217

R12

20

47

4.7u

F

C12

50

6800

pF

2.2u

F

C12

15

L120

1

C12

180.

1uF

1uF

27uH

C12

12

DA

TA

_FR

AC

N_1

C12

07

3.3K

R12

09

VS

F

1.5p

F

C12

130.

22uF

R12

06

470

51R12

16

R12

03

150K

36pF

C12

22

FL0

8306

93O

Lo

w B

and

Ran

ge

3 (4

2-50

MH

z) S

ynth

esiz

er F

RA

CN

4-18

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

2.5

- 11

VD

C

8.2V

DC

(R

) -2.2

VD

C (

R)

2.4V

DC

(R

)

0VD

C (

R)

4.7V

DC

(T

)

8.5V

DC

(R

)0V

DC

(T

)

+14

dB

m (

R)

4.8V

DC

(R

)

0.5V

DC

(R

)

0.7V

DC

(R

)

3.4V

DC

(R

)

-1.9

VD

C (

T)

2.4V

DC

(T

)

4.3V

DC

(T

)3.

5VD

C (

T) 0.7V

DC

(T

)

3.7V

DC

(T

)4VD

C (

R)

8.2V

DC

(T

)

0.5V

DC

(T

)

+3 d

Bm

(T

)

C13

18

.01u

F

.01u

F

C13

12 C13

13

2

4

1 3

.01u

F

U13

77

R13

26

C13

4156

pF

C13

33

56

10K

56pF

R13

11

1.2K

R13

13

23

1

Q13

05

4.7p

FC

R13

14

L131

633

uH

C13

35

L132

233

uH

D S

PR

E_I

N

TX

INJ_

VC

O_1

Q13

06

PR

E_I

N_V

CO

_1

R13

41

100

.01u

FC

1339

RX

INJ

TR

B_V

CO

_1

6

48

C13

51.0

1uF

CR

1302

15

273

22R13

36

.01u

FC

1347

Q13

08

C13

4256

pF

C13

56C

1360

FN

0:N

P3.

9pF

FN

0:N

P3.

9pF

L130

2

FN

0:N

P3.

9pF

C13

61

L131

3

491n

HR

XIN

J_V

CO

_1

491n

H

R13

3582

0

R13

07

56

L130

3

27uH

C13

16

3.3p

F

C13

15

.01u

FC

1311

51pF

C13

37.0

1uF

FN

0:N

P

C13

1451

pF

36

48

.01u

FC

1305

CR

1310

15

27

L130

727

uH

L131

733

uH

9V3_

VC

O_1

L130

627

uH

FN

0:N

P

C13

624.

7pF

VC

TR

L_V

CO

_1

C13

2313

pF

C13

360.

1uF

Q13

07

C13

20

.01u

F

R13

2847

0

C13

0616

pF

L131

0

390n

H

47pF

R13

46

100

100

C13

07

C13

04

R13

42

FN

0:N

P

.01u

F

C13

44.0

1uF

10

R13

19

R13

4315

0V

CT

RL

9V3

470

R13

18

FN

0:N

P3.

9pF

C13

54

C13

450.

1uF

C13

38.0

1uF

SH

1301

SH

IELD

FN

0:N

P

L131

1

SH

1302

SH

IELD

27uH

100

R13

45

D S

R13

27

56

Q13

03

R13

0947

0

470

R13

20F

N0:

NP

4.7p

FC

1309

C13

46.0

1uF

.01u

FC

1319

R13

1433

0

VS

F_V

CO

_1

Q13

04

3.3K

R13

34

C13

3456

pF

U13

78

2

4

1 3

L130

527

uH

R13

401K

56

R13

08

R13

121.

2K

C13

084.

7pF

.01u

F

C13

40

TR

B

3.9p

FC

1348

1.2K

R13

31

R13

06 0R

1315

3.3K

TX

INJ

22

75

R13

17

75R

1339

3.9p

F

R13

37

680

C13

21

820n

H

R13

16

150

L130

4

L131

4

33uH

R13

47

10K

R13

30

1KR13

44

120

R13

38

.01u

F

C13

5015

pF

C13

52

270n

H

CR

1306

23

1

L132

1L1

324

33uH

1.2u

HL1

315

R13

321.

2K

VS

F

L131

8

33uH

4.7K

4.7K

4.7K

47K

47K 10

K

47K

47K 10

K

C13

43

R13

76

R13

33

3.3p

F

0.1u

FC

1317

330

C13

49

R13

25

0.1u

F

FN

0:N

P

0

.01u

FC

1325

L130

927

uH

C13

26

.01u

F

TX

_8.5

V

TX

_8.5

V

FL0

8306

86O

Lo

w B

and

Ran

ge

1 (2

9.7-

36.0

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

19

+14

dB

m (

R)

8.5V

DC

(R

)0V

DC

(T

)

8.2V

DC

(T

)

-2.4

VD

C (

T)

2.4V

DC

(T

)

4.3V

DC

(T

)3.

5VD

C (

T)

3.7V

DC

(T

)

0.7V

DC

(T

)

+3d

Bm

(T

)

0.5V

DC

(T

)

2.5

- 11

VD

C

8.2V

DC

(R

)

2.3V

DC

(R

)

-2.3

VD

C (

R)

0VD

C (

R)

4.7V

DC

(T

)

3.4V

DC

(R

)

4VD

C (

R)

4.8V

DC

(R

)

0.5V

DC

(R

)

0.7V

DC

(R

)

SH

IELD

SH

1302

SH

IELD

SH

1301

L131

127

uH

R13

45

100

56R13

27

D S

R13

09

Q13

03

R13

2047

0

470

4.7p

FF

N0:

NP

L131

7

C13

09

L130

6

33uH

9V3_

VC

O_1

27uH

4.7p

FC

1362

FN

0:N

P

13pF

C13

23

C13

36

VC

TR

L_V

CO

_1

Q13

07

0.1u

F

.01u

F

C13

20

470

R13

28

16pF

C13

06

390n

H

L131

0

100

R13

46

C13

483.

9pF

R13

311.

2K

0

R13

06

R13

15

TX

INJ

R13

17

3.3K

22

75R13

39

C13

21

75R13

37

R13

163.9p

F

820n

HL1

304

680

150

R13

47

.01u

FC

1351

15

2736

4

8

22

CR

1302

R13

36

Q13

08

C13

47

.01u

F

C13

42

FN

0: N

P

56pF

FN

0: N

PC

1356

3.9p

F

C13

603.

9pF

C13

613.

9pF

FN

0:N

P

R13

32

VS

F

33uH

L131

8

1.2K

4.7K

4.7K

4.7K

47K

47K

47K

47K

10K

10K

R13

76

C13

43

3.3p

F

R13

3333

0

0.1u

F

0.1u

F

C13

17

0

C13

49

27uH

L130

9

R13

25

C13

25.0

1uF

.01u

F

C13

26

C13

18.0

1uF

.01u

FC

1313

C13

12.0

1uF

U13

77

2

4

1 3

56pF

C13

41

R13

26

56

C13

3327

pF

10K

R13

11R

1313

1.2K

1

Q13

05

CR

1314

23

4.7p

FC

1335

33uH

L131

6

33uH

L132

2

10K

33uH

L131

4

1K

R13

30

R13

44

C13

52

R13

38

120

C13

50

.01u

F

15pF

23

1

270n

H

L132

1

CR

1306

33uH

L132

4S

PR

E_I

N

L131

51.

2uH

Q13

06D

PR

E_I

N_V

CO

_1 TX

INJ_

VC

O_1

100

R13

41

C13

39.0

1uF

.01u

FC

1346

TR

B_V

CO

_1

C13

19.0

1uF

330

R13

14

Q13

04

3.3K

VS

F_V

CO

_1

C13

34

R13

34

2

4

1 3

56pF

L130

5

U13

78

27uH

1KR13

40

R13

08

56

C13

081.

2KR

1312

TR

B

4.7p

F49

1nH

C13

40

.01u

F

491n

H

L130

2

RX

INJ_

VC

O_1

L131

3

820

R13

35

L130

3

56

R13

073.

3pF

C13

16

27uH

.01u

F

24pF

C13

11

.01u

FC

1337

FN

0: N

P

FN

0: N

PF

N0:

NP

C13

15

24pF

C13

14

736

48

FN

0:N

P

C13

05.0

1uF

CR

1310

15

2

27uH

L130

7

24pF

C13

07

FN

0:N

P10

0

R13

42

C13

44

C13

04.0

1uF

.01u

F

R13

19

10

150

R13

43

VC

TR

L

9V3

R13

1847

0

C13

543.

9pF

FN

0:N

OT

PLA

CE

D

0.1u

FC

1345

.01u

FC

1338

TX

_8.5

V

TX

_8.5

V

FL0

8306

09O

Lo

w B

and

Ran

ge

2 (3

6.0-

42.0

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

4-20

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

3.4V

DC

(R

)

8.5V

DC

(R

)0V

DC

(T

)

0VD

C (

R)

4.7V

DC

(T

)

4.8V

DC

(R

)

0.45

VD

C (

R)

0.68

VD

C (

R)

4VD

C (

R)

+14

dB

m (

R)

+3 d

Bm

(T

)

0.54

VD

C (

T)

0.65

VD

C (

T)

3.5V

DC

(T

)4.

25V

DC

(T

)

8.2V

DC

(T

)

-2.6

VD

C (

T)

2.8V

DC

(T

)

2.5

- 11

VD

C

8.2V

DC

(R

)

-2.4

VD

C (

R)

1.5V

DC

(R

)

3.7V

DC

(T

)

L130

2

491n

HL1

313

491n

HR

XIN

J_V

CO

_1

R13

3582

0

R13

07

56

L130

3

18uH

C13

11

C13

16

3.3p

F

C13

15

.01u

F

.01u

F

13pF

13pF

FN

0:N

P

C13

37

C13

05

FN

0:N

P

C13

14

36

48

.01u

F

CR

1310

15

27

L130

718

uHC

1307

13pF

R13

42

100

FN

0:N

P

.01u

FC

1304

C13

44

.01u

F

10

R13

19

R13

4315

0

9V3

470

R13

18

3.9p

FC

1354

VC

TR

L

C13

450.

1uF

FN

0:N

P

.01u

F

D S

PR

E_I

N

C13

38T

XIN

J_V

CO

_1

Q13

06

PR

E_I

N_V

CO

_1

R13

41

100

.01u

FC

1339

RX

INJ

TR

B_V

CO

_1

C13

46

.01u

F

.01u

FC

1319

R13

1433

0

VS

F_V

CO

_1

Q13

04

R13

34

36pF

3.3K

2

4

1 3

C13

34

18uH

U13

78

R13

401K

L130

5

56

R13

08

R13

121.

2KC

1308

4.7p

F

.01u

F

C13

40

TR

B

.01u

FC

1318

C13

13

.01u

F

.01u

FC

1312

U13

77

2

4

47K 10

K47

K 10K

47K

4.7K

47K

4.7K

1 3

36pF

56

R13

26

C13

41

C13

33

R13

1110

K

22pF

R13

13

Q13

05

1.2K

CR

1314

23

1

C13

354.

7pF

L131

6

27uH

L132

227

uH

L131

4

27uH

10K

R13

30

1KR13

44

120

R13

38C

1352

.01u

F

C13

5015

pF

2

3

1

L132

1

270n

H

CR

1306

L132

427

uH

820n

HL1

315

36

48

C13

51.0

1uF

CR

1302

15

27

22R13

36

.01u

FC

1347

Q13

08

C13

4236

pF

C13

56C

1360

FN

0:N

P3.

9pF

FN

0:N

P3.

9pF

VS

F

FN

0:N

P3.

9pF

C13

61

R13

321.

2K

L131

8

27uH

R13

764.

7K

3.3p

F

C13

43

330

R13

33

0.1u

FC

1317

0.1u

FC

1349

0

R13

25

L130

918

uH

.01u

FC

1325

27uH

C13

26

.01u

F

18uH

L131

7

9V3_

VC

O_1

L130

6

C13

624.

7pF

C13

2313

pF

FN

0:N

P

VC

TR

L_V

CO

_1

C13

360.

1uF

.01u

F

Q13

07

R13

2847

0

C13

20

16pF

390n

H

C13

06

100

L131

0

C13

48

R13

46

R13

31

3.9p

F

0

1.2K

3.3K

TX

INJ

R13

06

22

R13

15

R13

17

R13

3975

R13

3775

680

C13

213.

9pF

R13

16

150

L130

482

0nH

FN

0:N

P

R13

47

SH

1302

SH

IELD

SH

1301

SH

IELD

18uH

L131

1

100

R13

45

R13

27

56

Q13

03

D S

R13

0947

0

470

R13

20

C13

09

TX

_8.5

V

TX

_8.5

V

FN

0:N

P4.

7pF

FL0

8306

94O

Lo

w B

and

Ran

ge

3 (4

2-50

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

21

1.8V

-2.2

V

1.8-

2.2V

1.75

Vp

p

1.8V

-2.2

V

12V

pp

J140

1

L142

3

430p

F

124.

327n

H

130p

F

C14

81

C14

22

FN

0:N

OT

PLA

CE

D

C14

49

4.7u

H

.01u

F

16R

FIN

6R

FO

UT

17

RF

OU

T2

1V

CN

TR

L14

VD

12

VG

13

VG

2

L140

2

4GND1 5GND2

12GND3

13GND4

8N

C1

9N

C2

10N

C3

15N

C4

U14

0130

C65

17EP

11G

2

C14

13

.01u

F

L142

456

nHF

N0:

NP

1uF

C14

25

10

R14

21

.01u

F

C14

05

10uF

C14

58

75pF

C14

8656pF

180

R14

54

1uF

C14

52

C14

71

C14

69

.01u

FC

1468

.01u

F

0

C14

331u

F

27V

pp

78V

pp

2Vd

c

143V

pp

189V

pp

186V

pp

27V

pp

R14

82

0.1u

F

C14

02

C15

29

.01u

FC

1423

.01u

F

100p

FC

1480

FN

0:N

P

R14

4110

KF

N0:

NP

C14

3047

0pF

217.

576n

HL1

421

C14

9110

00pF

FN

0:N

P

FN

0:N

P

FN

0:N

P

R14

7210

K

R14

5118

0

0.1u

FC

1472

R14

48

150K

R14

78

10K

R14

69

0

L140

3T

XIN

J_P

A_1

4.7u

H

51

100p

FC

1456

27uH

R14

04

6.2K

L141

9

.01u

F

R14

45

TX

INJ

C14

20

220

R14

44

R14

793.

3K

R14

17

10

FN

0:N

P

C14

4120

0pF

C14

21

DE

VIC

E N

EA

R IN

SID

E O

F R

AD

IO

DE

VIC

E N

EA

R O

UT

SID

E O

F R

AD

IO

.01u

F

470p

F

C14

48

6 57

8 4

C14

42

Pea

k-to

-Pea

k vo

ltage

s (V

pp)

are

typi

cal v

alue

s w

hich

wou

ld b

em

easu

red

by a

n os

cillo

scop

e un

der

the

follo

win

g co

ndito

ns:

1) B

atte

ry V

olta

ge =

13.

6V2)

Pou

t =66

W a

t 33M

Hz

75pF

MC

3307

2 U14

02

R14

40

C14

2747

0pF

100

C14

08

TP

1402

56pF

C14

54

FN

0:N

P

FN

0:N

P

330p

F

C14

82

220p

F

1uF

C14

51

250.

974n

HL1

420

D14

01

10

R14

57

FN

0:N

P6.

8nH

L140

1

L142

213

9.75

0nH

R14

14

1010R

1412

.01u

FC

1445

C14

3947

0pF

FN

0:N

P

0.1u

FC

1460

MO

SB

IAS

_3

Q14

04

R1442

FN

0:N

P

FN

0:N

P

100

0

R14

1510

FN

0:N

P

R14

47

180

R14

55

L140

812

0nH

PA

SU

PV

LTG

_PA

_1

E14

01

.01u

F

MO

SB

IAS

_2_P

A_1

C14

59

C14

85

R14

13

10uF

10

10

10R14

74

R14

75

88.4

70nH

L141

4

C14

46

82pF

.01

C14

43

470p

F

C14

44

R14

09

.01u

F

470p

F

C14

75

PA

SU

PV

LTG

C14

01

R14

77

1uF

1uF

3.3K

C14

67

C14

26

E14

03

82pF

C14

31.0

1uF

G

GN

D1

GN

D2

S1S2S3S4

Q14

02

D

88.4

70nH

C14

6210

uF

L141

3

470p

FC

1477

820

R14

50

13V

pp

1.6V

pp

R14

63

.01u

F

12K

41nH

L141

5

C14

66

D14

02

39K

FN

0:N

P

RX

IN_P

A_1

R14

67

L141

641

nH

390

R14

5818

0nH

L140

4

10K

R14

11

1KR14

43

470p

FC

1429

C14

1675

pF

470p

F

C14

47

R14

8324

0

.01u

FC

1434

FN

0:N

P

R14

465.

6K

MO

SB

IAS

_3_P

A_1

130

R14

10

.01u

F

Q14

01

C14

53

C14

04

160p

F

C14

55

3.3K

R14

64

18pF

C14

70

C14

76.0

1uF

1%0.1

1uF

10

R14

60

R14

65

R14

16

3.3K

TP

1403

TS

EN

SE

C14

07

.01u

F

470p

FC

1428

U14

02M

C33

072

231

84

120n

HF

N0:

NP

10

R14

20

L140

5

R14

23

10

180

R14

53

.01u

F

390

R14

49

C14

19

1K

.01u

F

R14

84

M14

01H

EA

TS

INK

PO

S

C14

14

R14

18

51K

10

MO

SB

IAS

_2

R14

81

FN

0:N

P

470p

FC

1440

R14

702.

4K

L142

641

nH

L142

541

nH

.01u

FC

1461

10K

R14

06

180p

FC

1479

184.

518n

HL1

418

RX

IN

0.1u

FC

1410

C14

18

.01u

F

C14

24.0

1uF

72.4

62nH

L141

7

.01u

FC

1474

C14

730.

1uF

330p

FC

1406

470p

FC

1437

10R

1476

R14

7310

10

R14

19

51R14

05

R14

5939

0

R14

6639

KF

N0:

NP

C14

3847

0pF

FN

0:N

P

1uF

C14

32

C14

50

3pF

.01u

F

C14

57

C14

7847

0pF

FN

0:N

P

C14

036.

2pF

FN

0:N

P

1uF

C14

35

FN

0:N

P

R14

71

0

R14

682.

2K

2200

pFC

1484

R14

22

10

1000

pFC

1417

.01u

F

C14

64

R14

80

27K

TP

1401

27K

R14

25

10K

R14

07

.01u

FC

1436

R14

0239

0

C14

65

1uF

1uF

C14

63

.01u

F

R14

24

C14

15

250.

974n

H

27K

GN

D2

S1S2S3S4

L140

6

Q14

03

D

G

GN

D1

9V3

PA

SU

PV

LTG

VC

NT

RL

FS

WB

2

Vin

t

U_P

RE

DR

IVE

R

U_D

RIV

ER

PA

SU

PV

LTG

U_P

RE

DR

IVE

R

MO

SB

IAS

_2_S

W

MO

SB

IAS

_3_S

W

MO

SB

IAS

_1_S

W

PA

SU

PV

LTG

U_D

RIV

ER

FS

WB

PC

IC_M

OS

BIA

S_1

9T1

FL0

8306

87O

Lo

w B

and

Ran

ge

1 (2

9.7-

36.0

MH

z) P

ow

er A

mp

lifie

r -

Sh

eet

1 o

f 2

4-22

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

6.00

V (

44W

)

3.00

V (

72W

)2.

90V

(44

W)

2.46

V (

72W

)1.

86V

(44

W)

6.34

V (

72W

)

2.51

V (

72W

)1.

90V

(44

W)

0.82

5V

9V3

Q15

04

Q15

02

R15

08

1%43.2

D15

03

D15

02R

1545

4.7K

Q15

06

C15

3210

uF

TP

1505

680

CS

X

TE

MP

SE

NS

E_P

A_1

R15

37

R15

01

1000

pFC

1531

1.5K

39.2

1%

R15

35

.01u

F

C15

30

R15

15

R15

24

1K

680

100K

R15

10

1.5K

R15

41

R15

1110

0K

1000

pFC

1505

100K

R15

12

Q15

03

82K

R15

32

R15

0247

0

U15

02

2 31

8 4

CLK

_PA

_1D

AT

A

78 4

FE

CN

TL_

1_P

A_1

9T1_

PA

_1

U15

02

6 5

9V3_

PA

_1

R15

0910

0K

C15

12

R15

22

10K

1uF

C15

09

2200

pF

1K

R15

23

R15

07

FN

0:N

P

FN

0:N

PF

N0:

NP

FN

0:N

P

68K

1%

FE

CN

TL_

1

C15

2610

0pF

12R

1542

1KVAR1

18 VAR2

24 VAR3

VG

15

VL 6VLIM19

S15

01S

WIT

CH

21

31R

SE

T

RX23 T1 2

TE

MP

30

V10

14

V45

16

17 V5EXT

20

9

GND1 8

GN

D2

25

INT 422 NA

Q11

QX

10

1RFIN

RS

29

CI 3

CJ 5

CL 7

CLK

26

CQ

12C

QX

13D

AT

A28

F16

8

U15

03H

99S

-4

AN

O32

BP

OS

27

CE

X

CS

X_P

A_1

R15

06

R15

05

6.8K

R15

16

39K

680

C15

25

0.1u

F

R15

033.

3K

C15

1022

00pF

1K

R15

43

Q15

05

R15

4451

K

R15

2710

0K

R15

3310

K

FE

CN

TL_

2_P

A_1

.01u

FC

1528

C15

27

.01u

F

20K

R15

28

PA

_PW

R_S

ET

_PA

_1

PA

_PW

R_S

ET

Q15

01

100K

R15

26

10K

R15

25

FN

0:N

P

2200

pF

C15

01

R15

1410

0K

2200

pFC

1503

R15

04

10K

2200

pF

RE

SE

T

2200

pF

C15

04

1.1K

C15

08

TP

1503

R15

13

2200

pFC

1502

TE

MP

SE

NS

E

TP

1502

DA

TA

_PA

_1

K9V

1K

9V1_

PA

_1

FE

CN

TL_

2

2200

pF

C15

07

2200

pF

TP

1501

CN

TLV

LTG

C15

11

9T1

CN

TLV

LTG

_PA

_1

680

R15

19

680

R15

17

R15

18

3.3K

CLK

D15

01C

1506

1000

pF

LM50

GND 31 POS VO

UT

2

RE

SE

T_P

A_1

9V3

Vin

t

PA

SU

PV

LTG

9V3

PA

SU

PV

LTG

PA

SU

PV

LTG

FS

WB

2

9V3

MO

SB

IAS

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W

MO

SB

IAS

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W

MO

SB

IAS

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W

U15

01

9V3

FS

WB

9V3

VC

NT

RL

9V3

PC

IC_M

OS

BIA

S_1

9T1

9V3

FN

0:N

P

FL0

8306

88O

Lo

w B

and

Ran

ge

1 (2

9.7-

36.0

MH

z) P

ow

er A

mp

lifie

r -

Sh

eet

2 o

f 2

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

23

J140

1

1.8V

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V

1.8V

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V

470p

FC

1443

MO

SB

IAS

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A_1

0.1u

F

C14

2847

0pF

R14

48

C14

72

C14

66

.01u

F

FN

O: N

P15

0K

30pF

C14

52

C14

55

C14

69

27pF

C14

02

.01u

F

1uF

C14

01.0

1uF

1K

R14

84

.01u

FC

1414

R14

14

10F

NO

: NP

10

100

R14

12

1.8V

-2.2

VT

P14

02

R14

40

R14

18

10

C14

48

240p

F

130p

F

C14

42

.01u

F

33 V

pp

33 V

pp

58 V

pp

169

Vpp

C14

31

R14

64

3.3K

R14

45

RX

IN

TP

1403

10

6.2K

R14

57

2.1V

pp

L142

4

C14

3743

0pF

82nH

390

R14

02

.01u

FC

1434

C14

600.

1uF

10

R14

15F

NO

: NP

16 V

pp

.01u

FC

1476

18 V

pp

L142

3

175

Vpp

78.7

27nH

R14

19

10

C14

32

1uF

FN

O: N

P

3pF

C14

50

R14

76 10

R14

2427

K

R14

65

3.3K

TX

INJ

.01u

F

0

R14

82

C14

68

MO

SB

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A_1

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02

MC

3307

2

6 57

8 4

C14

57

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F

C14

2943

0pF

L140

6

1uF

C14

26

250.

974n

H

C14

47

240p

F

150p

FC

1417

FN

O: N

P

R14

63

12K

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F

C14

41

96 V

pp

C14

70

PE

AK

-TO

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AK

VO

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GE

S (

Vpp

) A

RE

TY

PIC

AL

VA

LUE

SW

HIC

H W

OU

LD B

E M

EA

SU

RE

D B

Y A

N O

SC

ILLO

SC

OP

EU

ND

ER

TH

E F

OLL

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ING

CO

ND

ITIO

NS

:1)

BA

TT

ER

Y V

OLT

AG

E =

13.

6V2)

PO

UT

= 6

6W A

T 3

9MH

z

1uF

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75R

1474

10

D14

01M

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BIA

S_2

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02

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62

C14

54

62pF

25nH

L141

6

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5391

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1405

DE

VIC

E N

EA

R IN

SID

E O

F R

AD

IO

51

C14

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F

47pF

C14

67

FN

O: N

P12

0nH

L140

5

R14

50

820

E14

01

PA

SU

PV

LTG

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_1

C14

61.0

1uF

88.4

70nH

L141

3

C14

19

L141

4

88.4

7nH

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38

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F

1043

0pF

330p

FF

NO

: NP

C14

06

R14

20

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FC

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27K

C14

08

FN

O: N

P

R14

25

.01u

F

330p

F

470p

FC

1427

C14

740.

1uF

C14

73

FN

O: N

P

Q14

04

560p

FC

1418

RX

IN_P

A_1

FN

O: N

P39

KR

1466

R14

07

10K

1uF

C14

33

68pF

FN

O: N

P

C14

09

25nH

L142

6C

1480

300p

F

.01u

F

300p

FC

1481

C14

45

470p

FC

1439

FN

O: N

P

C14

1675

pF

10

R14

17

R14

77

3.3K

C14

8422

00pF

R14

13

10

R14

04

E14

03

C14

51

51

DE

VIC

E N

EA

R O

UT

SID

E O

F R

AD

IO

L140

4

180p

F

RF

OU

T2

7V

CN

TR

L1

VD

114

VG

12

VG

23

180n

H

GND312

GND413

NC

18

NC

29

NC

310

NC

415

RF

IN16

RF

OU

T1

6

30C

65U

1401

17EP

G2

11

GND14

GND25

27K

R14

80

C14

7710

0pF

C14

22.0

1uF

4.7u

HL1

402

FN

O: N

P

R14

21

10

R1442

0

C14

100.

1uF

D

G

GN

D1

GN

D2

S1S2S3S4

Q14

03

PO

S

L141

888

.470

nH

C14

4624

pF

HE

AT

SIN

KM

1401

.01u

F

C14

20

FN

O: N

P

L142

2

10K

R14

72

133.

304n

H

C14

5810

uF

L141

525

nH

MO

SB

IAS

_3

R14

431K

R14

06

10K

R14

4939

0

.01u

F

C14

04

C14

5910

uF

L142

5C14

351u

F

25nH

C14

65

1uF

C14

71

.01u

F

10

R14

16

R14

60

L140

34.

7uH

2.5V

pp

0.1

1%

FN

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P

240

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83

6.2p

FC

1403

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23.0

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115

0.49

9nH

180p

FC

1449

C14

25

1uF

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R14

09

L142

019

6.87

6nH

10R14

22

C14

4447

0pF

FN

0: N

P0

R14

71

FN

O: N

P2.

2KR

1468

.01u

FC

1424

L141

725

nH

.01u

F

C14

64

180

R14

54

R14

5839

0

3.3K

R14

79

.01u

F

C14

13

10R14

73

10K

FN

O: N

P

G

GN

D1

GN

D2

S1S2S3S4

R14

41

Q14

02

D

R14

67

TP

1401

FN

O: N

P

39K

TX

INJ_

PA

_1

R14

46

FN

O: N

P5.

6K

C14

63

1uF

R14

70

C14

40

470p

F

FN

O: N

P2.

4K

FN

O: N

P

430p

FC

1430

R14

4447

0

C14

7924

0pF

100p

FC

1478

10

R14

23

0.1u

FC

1529

180

C14

05

FN

O: N

P

R14

51

.01u

F

.01u

F

10K

C14

07

R14

11

75pF

27uH

2 V

dc

L141

9

1uF

PA

SU

PV

LTG

C14

56

C14

75

130

FN

O: N

P.0

1uF

C14

21

C14

15

R14

10

Q14

01

0.1u

F

R14

59

R14

47

390

C14

36.0

1uF

0

R14

78

0

R14

69

10K

.01u

F23

184

C14

85

6.8n

HF

NO

: NP

MC

3307

2U

1402

180

R14

55

L140

1 180

R14

53

9V3

PA

SU

PV

LTG

VC

NT

RL

FS

WB

2

Vin

t

U_P

RE

DR

IVE

R

U_D

RIV

ER

PA

SU

PV

LTG

U_P

RE

DR

IVE

R

MO

SB

IAS

_2_S

W

MO

SB

IAS

_3_S

W

MO

SB

IAS

_1_S

W

PA

SU

PV

LTG

U_D

RIV

ER

FS

WB

PC

IC_M

OS

BIA

S_1

9T1

FL0

8306

07A

Lo

w B

and

Ran

ge

2 (3

6.0-

42.0

MH

z) P

ow

er A

mp

lifie

r -

Sh

eet

1 o

f 2

4-24

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

LM61

42

6.20

V (

72W

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N0:

NP

FN

0:N

P

LM61

42

5.86

V (

44W

)2.

95V

(72

W)

2.85

V (

44W

)

2.48

V (

72W

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85V

(44

W)

2.51

V (

72W

)1.

86V

(44

W)

0.82

5V

FN

0:N

OT

PLA

CE

D

R15

1768

0

R15

23

1%68K

CN

TLV

LTG

100K

R15

27

C15

04

CN

TLV

LTG

_PA

_1

C15

08

2200

pF

R15

13

2200

pF

FE

CN

TL_

1

RE

SE

T

1.1K

FE

CN

TL_

1_P

A_1

Q15

02

CS

X_P

A_1

680

R15

01

3.3K

R15

18

1000

pF

C15

06

CLK

1

2V

OU

T

RE

SE

T_P

A_1

LM50

U15

01 3GND

PO

S

R15

1010

0K

10K

R15

33

CS

X

9T1_

PA

_1

FE

CN

TL_

2_P

A_1

R15

08

9T1

R15

09

43.2

1% 100K

C15

27

9V3_

PA

_1

.01u

F.0

1uF

C15

28

FN

0: N

P

FN

0:N

OT

PLA

CE

D

R15

2510

K

C15

3110

00pF

.01u

FC

1530

D15

03

D15

02R

1545

Q15

06M

MB

T39

04

4.7K

R15

43

1K

51K

R15

44

100K

R15

11

1000

pFR

1512

100K

C15

05

Q15

03

R15

32

82K

100p

FC

1526

R15

28

20K

PA

_PW

R_S

ET

_PA

_1

PA

_PW

R_S

ET

Q15

01

U15

026 5

78 4

TP

1505

DA

TA

_PA

_1

K9V

1K

9V1_

PA

_1

R15

05

C15

07

2200

pF

6.8K

R15

0639

K

R15

1668

0

6VL19 VLIM

0.1u

F

C15

25

30T

EM

P

14V

10

16V

45

V5EXT17

VAR120

VAR218

VAR324

15V

G

NA22

11Q

10Q

X

RFIN1

21 RS

RS

ET

31

23 RX 2T1

26C

LK

12C

Q

13C

QX

28D

AT

A

9F

168

8GND1

25G

ND

2

4INT

32A

NO

27B

PO

S

29C

EX

3CI

5CJ

7CL

2200

pFC

1510

H99

S-4

U15

03

Q15

05

2200

pFC

1511

1KR15

42

SW

ITC

HS

1501

12

TP

1503

39.2

1%R15

35

R15

2468

0

C15

0222

00pF

DA

TA

TP

1502

C15

01

2200

pF

100K

R15

14

1.5K

R15

40

2 31

8 4

R15

391.

5K

U15

02

R15

19

680

1KR15

07

470

R15

02

R15

2610

0K

R15

03

R15

15

1K

3.3K

10K

R15

22

C15

1222

00pF

TE

MP

SE

NS

E_P

A_1

C15

09

1uF

TE

MP

SE

NS

E

D15

01

C15032200pF

10K

R15

04

TP

1501

FE

CN

TL_

2

9V3

Q15

04

9V3

Vin

t

9V3

PA

SU

PV

LTG

FS

WB

2

9V3

MO

SB

IAS

_2_S

W

MO

SB

IAS

_1_S

W

MO

SB

IAS

_3_S

W

PA

SU

PV

LTG

CLK

_PA

_1

9V3

FS

WB

PA

SU

PV

LTG

9V3

VC

NT

RL

9V3

PC

IC_M

OS

BIA

S_1

9T1

9V3

FL0

8306

07O

SH

EE

T 2

Lo

w B

and

Ran

ge

2 (3

6.0-

42.0

MH

z) P

ow

er A

mp

lifie

r -

Sh

eet

2 o

f 2

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

25

20 V

pp

18 V

pp

25 V

pp

25 V

pp

190

Vpp

180

Vp

p

J140

1

1.8V

-2.1

V

1.8V

-2.1

V

3.7V

-3.9

V

2.5

Vp

p

5 V

pp

90 V

pp

10 V

pp

Pea

k-to

-Pea

k V

olta

ges

(Vpp

) ar

e ty

pica

l val

ues

asco

uld

be m

easu

red

with

an

osci

llosc

ope

unde

rth

e fo

llow

ing

cond

ition

s:1.

) B

atte

ry V

olta

ge =

13.

6 V

olts

2.)

Tes

t Cha

nnel

11,

i.e.

Hig

h P

ower

@ 4

6.12

5 M

Hz

DE

VIC

E N

EA

R IN

SID

E O

F R

AD

IO

DE

VIC

E N

EA

R O

UT

SID

E O

F R

AD

IO

0

E14

03

R14

69

C14

04.0

1uF

C14

760.

1uF

C14

1630

pF

137.

876n

HL1

421

FN

0:N

P

D14

02

1uF

C14

25

10

R14

21

3.3K

R14

64

120n

HF

N0:

NP

R14

83

240

L140

5

R14

04 51

R14

23

10

10uF

33pF

C14

54

C14

62

220

R14

44

3.3K

0.1u

F

C14

60

R14

79

C14

58

C14

730.

1uF

10uF

300p

F

180p

F

MO

SB

IAS

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A_1

C14

78

C14

51

10uF

C14

59

C14

27

240p

F

180

R14

53

PA

SU

PV

LTG

3.3K

R14

77

R14

49

TP

1402

390

430p

FC

1417

390

R14

5827

0pF

C14

12

27K

R14

25

C14

331u

F

300p

F

C14

77

R14

45

6.2K

L142

618

nH

MC

3307

2 U14

02-2

6 57

8 4

27K

R14

24

1uF

C14

75

10K

RX

IN_P

A_1

C14

28

R14

78

U14

02-1

MC

3307

2

231

84

240p

F

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F

100

R14

40

C14

24

C14

48

Q14

04F

N0:

NP

470p

F

R14

841K

220p

FC

1479

C14

06

470p

FC

1437

FN

0:N

P

330p

F

C14

07.0

1uF

24pF

C14

691u

F

C14

52

R14

7310

R14

57

10

R14

63

12K

L141

927

uH

R14

4110

KF

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CS

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C10

31

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4

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22

RX

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H

C10

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17

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270p

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L100

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C10

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02

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1042

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11

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3739

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L100

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ge

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6

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22

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H

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C10

31

L100

3

C10

07

0.1u

F10

%

R10

03

RX

IN

180p

F

C10

29

470

56pF

.01u

F5%

C10

06C

1013

680p

F

L100

213

0nH

FN

0:N

P15

pFC

1018

130n

H

L101

0L1

009

C10

2139

0pF

C10

23

130n

H

390p

FC

1016

1000

pF

C10

26

9T1_

FE

_1

130p

F

FL0

8306

97O

Lo

w B

and

Ran

ge

3 (4

2-50

MH

z) R

ecei

ver

Fro

nt

En

d

4-30

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

HSIO

GP

4_O

UT

GP

7_O

UT

HC

138_

A2

GP

1_IN

GP

8_O

UT

EX

P1_

CS

EE_CS

HSIO

GP

7_IN

CLK

GP

5_IN

GP

1_IN

CLKCSX

- R

0105

US

ED

INS

TA

ND

AR

D O

NLY

- R

0106

US

ED

INP

RIM

E O

NLY

GP

7_O

UT

VOX

LSIO

GP

7_IN

HC

138_

A0

RE

F_C

S

MISO

EX

P2_

CS

512k

x8bi

t

RA

M

GP

6_IN

GP

6_IN

HC

138_

A0

GP

3_IN

GP

8_IN

GP

3_IN

GP

8_IN

PE

6LV

ZIF

_CS

GP

4_IN

SQ_DET

HC

138_

A1

FLA

SH

RO

M

SYN

HC

138_

A2

GP

2_O

UT

LSIO

MIC

RO

PR

OC

ES

SO

R

DATA

MISO

F1200

GP

4_IN

GP

5_IN

GP

4_O

UT

VS

_CS

ON

_OF

F_S

EN

SE

GP

8_O

UT

EE

PR

OM

DATA

32kx

8bit

OP

T_C

S

HC

138_

A1

CHACT

16K

x8bi

t

GP

4_O

UT

GP

7_O

UT

(EX

T_B

D_P

TT

& D

AT

A_P

TT

)

EE

_CS

47K

47K

47K

47K

47K 47

K

47K

R01

79

0R01

16

NU

4

R01

5224

K

R01

3233

0K

R01

72

2

10K R

0175

6

7

10K

R01

15

0R

0111

10K

7

101

100p

FC

0101

C01

07

90

1000

pF

11

6

R01

1410

K

10K

R01

04

69VRL68

VSS 13

VSSL 40VSSR 87

93XFC

XIR

Q48

XTAL91

76

PJ6

77

PJ7

78

RE

SE

T94

VDD12

VDDL39VDDR88

VDDSYN92

VRH

51PI6 50PI7 49

PJ0

_CS

GP

371

PJ1

_CS

GP

472

PJ2

73

PJ3

74

PJ4

75

PJ5

42

PH

6_C

SG

P2

41

PH

7_C

SP

RO

G38

PI0 56PI1 55PI2 54PI3 53PI4 52PI5

18

PG

6_A

S5

PG

7_R

_W4

PH

0_P

W1

47

PH

1_P

W2

46

PH

2_P

W3

45

PH

3_P

W4

44

PH

4_C

SIO

43

PH

5_C

SG

P1

23PF7_ADDR7 22

PFO_ADDR0 29

PG

0_X

A13

6

PG

1_X

A14

16

PG

2_X

A15

20

PG

3_X

A16

19

PG

4_X

A17

17

PG

5_X

A18

PE

5_A

N5

61P

E6_

AN

660

PE

7_A

N7

PF1_ADDR1 28PF2_ADDR2 27PF3_ADDR3 26PF4_ADDR4 25PF5_ADDR5 24PF6_ADDR6

1PD5_SS2

3 PD6_LVIN

67P

E0_

AN

066

PE

1_A

N1

65P

E2_

AN

264

PE

3_A

N3

63P

E4_

AN

462

34

PC

5_D

AT

A5

35

PC

6_D

AT

A6

36

PC

7_D

AT

A7

37

PD0_RXD97PD1_TXD98

PD2_MISO99PD3_MOSI100PD4_SCK

15PB6_ADDR14 8PB7_ADDR15 7

PBO_ADDR8 14

PC

0_D

AT

A0

30

PC

1_D

AT

A1

31

PC

2_D

AT

A2

32

PC

3_D

AT

A3

33

PC

4_D

AT

A4

83PA5_OC3_OC184PA6_OC2_OC185PA7_PA1_OC186

PB1_ADDR9 10PB2_ADDR10 11PB3_ADDR11 9PB4_ADDR12 21PB5_ADDR13

96

95 LVOUT

MO

DA

_LIR

58

MO

DB

_VS

TB

Y57


PA3_IC4_OC5_OC182PA4_OC4_OC1

U01

01

AVDD59

AVSS 70

EC

LK89

EXTAL90

IRQ

R01

70

5

11

10K

0

4

10

3W

P

1C

S

7H

OLD

6S

CK

5S

I

2S

O

8VCC 4VSS

X25

128-

2.7

U01

11

.01u

FC

0151

47K 47

K

0.1u

FC

0141

7

1

7

C01

0610

0pF

NU

12

3

0

15Y

014

Y1

13Y

212

Y3

11Y

410

Y5

9Y

67

Y7

1A

02

A1

3A

2

6E

N_C

S1

4E

N_C

S2

5E

N_C

S3

8GND

16

VC

C

12

MC

74H

C13

8A

U01

41

TP

0102

65

6

10

R01

854.

7K

IO6

17

IO7

18

IO8

19

VCC

28

8

2

6

EN

_OE

22

EN

_WE

27

14GND

IO1

11

IO2

12

IO3

13

IO4

15

IO5

16A

37

A4

6 5A

5A

64

A7

3

A8

25

A9

24

EN

_CS

20

A0

10

A1

9 21A

10A

1123

A12

2

A13

26

A14

1

A2

8

6

U01

22

63A

21

2.2K

R01

08

8

17

3 9

Q01

81

10

66

0.1u

F

7

TP

0151

C01

21

C01

0210

0pF

NU

NU

18

C01

0410

0pF

47K

R01

84

10K

47K

47K

R01

74

22pF

C01

32

Q01

85

012

3

1

R01

834.

7K

11

413

Q01

73

12013

D01

51

R01

73

122

3

4.7K

1

8

8

4

18

R01

10

NU

7

4.7K

R01

77

10K

9

1

4

5

1

1

C01

22

7

109

8

0.1u

F

3

2

TP

0103

3

11110

7

2

1

2

C01

23

NU

0.1u

F

100p

F

C01

12

10K

R01

13

R01

5124

K

2

80

22IO

123

IO2

25IO

326

IO4

27IO

528

IO6

29IO

7

VC

C8

13A

73

A8

2A

9

30E

N_C

E32

EN

_OE

7E

N_W

E

GND24

IO0

21

10A

166

A17

9A

18

18A

217

A3

16A

4A

515

A6

1420A

019

A1

31A

101

A11

12A

12A

134 5

A14

A15

11

3

AT

49F

040

U01

21

D01

79

2 3

17 9

5

6

7

10K

R01

01

TP

0101

Q01

10

47K 47

KR

0107

NU

3

47K

4.7K

R01

81

4

3

100K

R01

05

R01

78

5

47K

47K 47

K

10M

EG

R01

31

NU

4

2

100p

FC

0105

4.7K

R01

71

4

D01

01

3.9K

R01

17

15

5

1413

16

5

Q01

71

100K

5

R01

21

3

Q01

51

Q01

77

0

R01

86

30K

10

47K

0

R01

76

13

6

13

4

5

IN1

9

0

6

1

38.4

0KH

z

Y01

31X

TA

L NC 2

NC

1 3

OU

T4

NU

R01

12

0

47K

R01

82

0 NU

816

R01

06

100p

F

C01

11

NU

C01

03

NU

R01

024.

7K

100p

F

22pF

C01

31

15 7

VR

0151

14

9

Q01

83

4

5

0

2

R_W

RA

M_C

SBU

S+

CN

TLV

LTG

5VD

SC

I_T

X

GP

1_IN

_AC

C3

GP

6_IN

_AC

C10

GP

2_O

UT

_AC

C4

R_W

FLA

SH

_CE

FLA

SH

_OE

5VD

IRQ

IRQ

AD

DR

_BU

S(0

:18)

DA

TA

_BU

S(0

:7)

14

FR

OM

_U01

01_4

7

VS

_RA

C

5VD VS

_IN

T

GP

4_IN

_OU

T_A

CC

8

5VD

BO

OT

_CN

TR

L

GP

3_IN

_AC

C6

5VD

TP

0104

ON

_OF

F_C

ON

TR

OL

5VD

5VD

5VD

RE

SE

T

RE

SE

T

5VD

OP

T_P

TT

5VD

GP

5_IN

_AC

C9

5VD

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

GP

IO(0

:13)

GP

IO(0

:13)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

CN

TLR

_AU

DIO

(0:7

)

FR

OM

_U01

01_4

7F

RO

M_U

0101

_46

FR

OM

_U01

01_4

6

5VD

5VD

FLT

_A+

TE

MP

SE

NS

E

RA

M_C

S

5VD

VS

_GA

INS

EL

EX

T_B

D_R

EQ R

SS

I

5VD

RX

_AD

AP

T

5VD

5VD

5VD

FLT

_A+

FLT

_A+

FLA

SH

_OE

NC

EC

LK

NCNC

LOC

K

RD

Y

ON

_OF

F_C

ON

TR

OL

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

5VD

5VD

5VD

5VD

FLA

SH

_CE

R_W

VS

TB

Y

5VD

BA

TT

ER

Y_V

OLT

AG

E

FL0

8306

83O

Lo

w B

and

Ran

ge

1/2

Co

ntr

olle

r -

T6

(fo

r P

C B

oar

ds

8486

206B

06 &

848

6207

B05

)

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

31

ON

_OF

F_S

EN

SE

GP

5_IN

GP

4_O

UT

VS

_CS

EX

P1_

CS

GP

1_IN

CLKCSX

HC

138_

A1

OP

T_C

S

32kx

8bit

- R

0105

US

ED

INS

TA

ND

AR

D O

NLY

- R

0106

US

ED

INP

RIM

E O

NLY

GP

7_O

UT

CLK

GP

5_IN

GP

8_IN

GP

4_IN

GP

3_IN

GP

8_IN

PE

6LV

ZIF

_CS

512k

x8bi

t

RA

M

GP

6_IN

GP

6_IN

HSIO

GP

4_O

UT

GP

7_O

UT

DATA

EE

PR

OM

HC

138_

A2

SYN

HC

138_

A2

GP

2_O

UT

LSIO

MIC

RO

PR

OC

ES

SO

R

DATA

MISO

F1200

GP

4_IN

GP

8_O

UT

VOX

LSIO

GP

7_IN

HC

138_

A0

RE

F_C

S

MISO

EX

P2_

CS

GP

1_IN

GP

8_O

UT

SQ_DET

HC

138_

A1

FLA

SH

RO

M

NU

EE_CS

HSIO

GP

7_IN

CHACT

16K

x8bi

t

GP

4_O

UT

GP

7_O

UT

(EX

T_B

D_P

TT

& D

AT

A_P

TT

)

EE

_CS

HC

138_

A0

GP

3_IN

8

0R01

06

C01

080.

1uF

NU

R01

03

10

NU

C01

11

100p

F

NU

4.7K

R01

02

C01

0310

0pF

22pF

15

C01

31

7

5.6V

VR

0151

Q01

83

14

9

14

4

5

0

2 15

5

0.1u

FC

0112

Q01

71

100K

R01

21

Q01

77

0

3

47K

10

R01

86

0

30K

R01

76

13

6

13

4

5

1IN

9

0

6

1

38.4

0KH

z 2

NC

3

NC

1

4O

UT

NU

XT

AL

Y01

31

0

R01

12

R01

82

47K

47K

47K

47K

47K 47

K

47K

R01

814.

7K

NU

4

3

R01

1010

K

47K

47K

100K

16 5

R01

05

R01

78

47K

47K 47

K

10M

EG

4

2

R01

31

C01

0510

0pF

NU

R01

714.

7K

4

D01

01

R01

173.

9K

5

1413

16

5

100p

FN

U

7

2

11

C01

23R

0113

10K

Q01

51

2

8

22

IO2

23

IO3

25

IO4

26

IO5

27

IO6

28

IO7

29

8 VC

C

13

A8

3

A9

2

EN

_CE

30

EN

_OE

32

EN

_WE

7

24GND

21IO

0IO

1

10

A17

6

A18

9

A2

18

A3

17

A4

16 15A

514

A6

A7

20

A1

19

A10

31

A11

1

A12

12 4A

13A

145 11

A15

A16

3

U01

21

AT

49F

040

A0

2 3

17 9

D01

79

5

6

7

R01

0110

K

TP

0101

Q01

10

NU

3

18

R01

0747

K

R01

774.

7K

1

4

1 17

7

7

1099

8

C01

220.

1uF

2

TP

0103

3

11110

3

1

2

4.7K

R01

83

12

3

1

0

24K

R01

51

013

413

12

12

D01

51

R01

734.

7K

8

8

4

2

3

6

1

3

R01

082.

2K

66

5

1

8

TP

0151

10

C01

21

7

NU

0.1u

F

100p

FC

0102

100p

FC

0104

NU

47K

18

R01

84

R01

7410

K

22pF

Q01

85

C01

32

3

0

CS

1

HO

LD7

SC

K6

SI

5

SO

2

VCC8

VSS4

WP U01

11X

2512

8-2.

7

C01

51

47K

47K

.01u

F

Q01

73

74

1

7

100p

FC

0106

NU

9

Y7

7

12

3

0

8

VC

C

16

Y0

15

Y1

14

Y2

13

Y3

12

Y4

11

Y5

10

Y6

A0

1

A1

2

A2

3

EN

_CS

16

EN

_CS

24

EN

_CS

35

GND

5

12

U01

41

MC

74H

C13

8A

6

6

10

TP

0102

2

6

4.7K

R01

85

15IO

416

IO5

17IO

618

IO7

19IO

8

28

VCC

8

24A

9

20E

N_C

S22

EN

_OE

27E

N_W

E

GND14

11IO

112

IO2

13IO

3

1A

14

8A

27

A3

6A

4A

55 4

A6

3A

725

A8

U01

22

10A

09

A1

A10

21 23A

112

A12

26A

13

11

6

63A

21

Q01

81

9

R01

04

10K

40VSSL

87VSSR

XFC93

48X

IRQ

91 XTAL

94R

ES

ET

12 VDD

39VDDL

88 VDDR

92 VDDSYN

69 VRH

68 VRL

13VSS

71P

J0_C

SG

P3

72P

J1_C

SG

P4

73P

J274

PJ3

75P

J476

PJ5

77P

J678

PJ7

56PI0

55PI1

54PI2

53PI3

52PI4

51PI5

50PI6

49PI7

47P

H0_

PW

146

PH

1_P

W2

45P

H2_

PW

344

PH

3_P

W4

43P

H4_

CS

IO42

PH

5_C

SG

P1

41P

H6_

CS

GP

238

PH

7_C

SP

RO

G

6P

G0_

XA

1316

PG

1_X

A14

20P

G2_

XA

1519

PG

3_X

A16

17P

G4_

XA

1718

PG

5_X

A18

5P

G6_

AS

4P

G7_

R_W

28PF1_ADDR1

27PF2_ADDR2

26PF3_ADDR3

25PF4_ADDR4

24PF5_ADDR5

23PF6_ADDR6

22PF7_ADDR7

29PFO_ADDR0

PE

0_A

N0

67

PE

1_A

N1

66

PE

2_A

N2

65

PE

3_A

N3

64

PE

4_A

N4

63

PE

5_A

N5

62

PE

6_A

N6

61

PE

7_A

N7

60

37P

C7_

DA

TA

7

97 PD0_RXD

98 PD1_TXD

99 PD2_MISO

100 PD3_MOSI

1 PD4_SCK

2 PD5_SSPD6_LVIN3

14PBO_ADDR8

30P

C0_

DA

TA

031

PC

1_D

AT

A1

32P

C2_

DA

TA

233

PC

3_D

AT

A3

34P

C4_

DA

TA

435

PC

5_D

AT

A5

36P

C6_

DA

TA

6

86 PA7_PA1_OC1

10PB1_ADDR9

11PB2_ADDR10

9PB3_ADDR11

21PB4_ADDR12

15PB5_ADDR13

8PB6_ADDR14

7PB7_ADDR15

57M

OD

B_V

ST

BY

79 PA0_IC3

80 PA1_IC2

81 PA2_IC1

82 PA3_IC4_OC5_OC1

83 PA4_OC4_OC1

84 PA5_OC3_OC1

85 PA6_OC2_OC1

59 AVDD

70AVSS

89E

CLK

90 EXTAL

96IR

Q

LVOUT95

58M

OD

A_L

IR

U01

01M

C68

HC

11F

L0

R01

7010

K

4

10

5

11

0

47K

NU

R01

79

R01

160

C01

410.

1uF

24K

R01

52

330K

R01

32

R01

72

10K

47K

47K

10K

6

2 7

R01

75

R01

1510

K

7

101

R01

110

100p

F

9

C01

01

0

C01

0710

00pF

10K

R01

14

RA

M_C

S

BU

S+

CN

TLV

LTG

5VD

SC

I_T

X

GP

1_IN

_AC

C3

GP

6_IN

_AC

C10

GP

2_O

UT

_AC

C4

R_W

FLA

SH

_CE

FLA

SH

_OE

5VD

IRQ

IRQ

AD

DR

_BU

S(0

:18)

DA

TA

_BU

S(0

:7)

5VD

TP

0104

FR

OM

_U01

01_4

7

VS

_RA

C

5VD VS

_IN

T

GP

4_IN

_OU

T_A

CC

8

5VD

BO

OT

_CN

TR

L

GP

3_IN

_AC

C6

ON

_OF

F_C

ON

TR

OL

R_W

5VD

5VD

5VD

RE

SE

T

RE

SE

T

5VD

OP

T_P

TT

5VD

GP

5_IN

_AC

C9

5VD

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

GP

IO(0

:13)

GP

IO(0

:13)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

CN

TLR

_AU

DIO

(0:7

)

FR

OM

_U01

01_4

7F

RO

M_U

0101

_46

FR

OM

_U01

01_4

6

5VD

5VD

FLT

_A+

TE

MP

SE

NS

E

RA

M_C

S

5VD

VS

_GA

INS

EL

EX

T_B

D_R

EQ

RS

SI

5VD

RX

_AD

AP

T

5VD

5VD

5VD

FLT

_A+

FLT

_A+

FLA

SH

_OE

NC

EC

LK

NCNC

LOC

K

RD

Y

ON

_OF

F_C

ON

TR

OL

NC

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

5VD

5VD

5VD

5VD

FLA

SH

_CE

R_W

VS

TB

Y

5VD

BA

TT

ER

Y_V

OLT

AG

E

FL0

8306

84O

Lo

w B

and

Ran

ge

3 C

on

tro

ller-

T9

(fo

r P

C B

oar

d 8

4869

08Z

02)

4-32

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

GP

3_IN

GP

8_IN

PE

6LV

ZIF

_CS

ON

_OF

F_S

EN

SE

GP

5_IN

GP

4_O

UT

VS

_CS

EX

P1_

CS

HC

138_

A2

SYN

HC

138_

A1

GP

2_O

UT

LSIO

MIC

RO

PR

OC

ES

SO

R

CLK

GP

5_IN

CSX

HC

138_

A1

OP

T_C

S

32kx

8bit

R01

05 U

SE

D IN

ST

AN

DA

RD

ON

LY

GP

7_O

UT

GP

8_O

UT

SQ_DET

HC

138_

A1

R01

06 U

SE

D IN

PR

IME

ON

LY

FLA

SH

RO

M

NU

EE_CS

HSIO

GP

8_IN

GP

4_IN

EE

_CS

HC

138_

A0

GP

3_IN

512k

x8bi

t

RA

M

GP

6_IN

GP

6_IN

HSIO

GP

4_O

UT

GP

7_O

UT

DATA

EE

PR

OM

HC

138_

A0

RE

F_C

S

MISO

EX

P2_

CS

GP

1_IN

DATA

MISO

F1200

GP

4_IN

GP

8_O

UT

VOX

LSIO

GP

7_IN

GP

1_IN

CLK

GP

7_IN

CHACT

16K

x8bi

t

GP

4_O

UT

GP

7_O

UT

(EX

T_B

D_P

TT

& D

AT

A_P

TT

)

0

R01

12

NU

4.7K

R01

81

0R01

06

0.1u

FN

U

8

10C

0108

NU

R01

03

C01

1110

0pF

4.7K

R01

02

100p

FN

U

C01

03

15

C01

3122

pF

VR

0151

14

9

7

Q01

83

0

2 15141413

4

5

7

2

5

0.1u

FC

0112

Q01

71

100K

R01

21

0

3

47K

Q01

77

10

R01

86

R01

76

6

13

4

5

0

30K

0

6

1

13

2

NC

3

NC

1

4O

UT

1IN

9

XT

AL

Y01

31

38.4

0KH

z

Q01

10

R01

82

47K

NU

4

3

18

R01

1010

K

16 5

R01

0510

0K

R01

7847

K

4

2

R01

31

10M

EG

C01

0510

0pF

NU

4.7K

4

R01

71

D01

01

16

5

R01

17

3.9K

R01

83

5

2

1

4.7K

C01

2310

0pF

NU

11

R01

1310

K

Q01

51

IO6

28

IO7

29

8 VC

C

2

8

EN

_WE

7

24

GN

D

21IO

0IO

122

IO2

23

IO3

25

IO4

26

IO5

27A

416 15

A5

14A

6A

713

A8

3

A9

2

EN

_CE

30

EN

_OE

32

4A

13A

145 11

A15

A16

10

A17

6

A18

9

A2

18

A3

17

A0

20

A1

19

A10

31

A11

1

A12

12

2 3

3

U01

21A

T49

F04

0

6

17 9

D01

79

10K

5

7

R01

01

3

8

TP

0101

47K

NU

2.2K

6

R01

07

R01

08

R01

77

4.7K

1

4

1 17

7

7

1099

8

C01

220.

1uF

TP

0103

3

11110

3

2

1

0

CS

1

HO

LD7

SC

K6

SI

5

SO

2

VC

C8

VS

S

4

WP

3

3

U01

11X

2512

8-2.

7

12

13

0

24K

R01

51

12013

4

D01

51

4.7K

12

3

R01

73

1

2

6

8

4

2

3

6

10

66

5

1 87

TP

0151

C01

21

C01

02

NU

0.1u

F

100p

F10

0pF

C01

04

NU

47K

18

R01

84

R01

74

10K

22pF

Q01

85

C01

32

R01

79

47K

74

C01

51.0

1uF

Q01

73

C01

06

NU

1

7

0

100p

F

12

Y4

11

Y5

10

Y6

9

Y7

7

12

3

6

EN

_CS

24

EN

_CS

35

GN

D

8VC

C16

Y0

15

Y1

14

Y2

13

Y3

A0

1

A1

2

A2

3

EN

_CS

1

65

12

U01

41M

C74

HC

138

A

10

TP

0102

4.7K

R01

85

6

80

C01

0710

00pF

12IO

213

IO3

15IO

416

IO5

17IO

618

IO7

19IO

8

28 VC

C

3A

725

A8

24A

9

20E

N_C

S22

EN

_OE

27E

N_W

E

GN

D

14

11IO

1

2A

1226

A13

1A

14

8A

27

A3

6A

4A

55 4

A6

63A

21U

0122

10A

09

A1

A10

21 23A

11

11

10K

R01

14

Q01

81

9

R01

0410

K

13VSS

40VSSL

87VSSR

XFC93

48X

IRQ

91XTAL

PJ6

78P

J7

94R

ES

ET

12VDD

39VDDL

88VDDR

92VDDSYN

69VRH

68VRL

PI6

49PI7

71P

J0_C

SG

P3

72P

J1_C

SG

P4

73P

J274

PJ3

75P

J476

PJ5

77

PH

6_C

SG

P2

38P

H7_

CS

PR

OG

56PI0

55PI1

54PI2

53PI3

52PI4

51PI5

50

4P

G7_

R_W

47P

H0_

PW

146

PH

1_P

W2

45P

H2_

PW

344

PH

3_P

W4

43P

H4_

CS

IO42

PH

5_C

SG

P1

41

PF7_ADDR7

29PFO_ADDR0

6P

G0_

XA

1316

PG

1_X

A14

20P

G2_

XA

1519

PG

3_X

A16

17P

G4_

XA

1718

PG

5_X

A18

5P

G6_

AS

PE

7_A

N7

60

28PF1_ADDR1

27PF2_ADDR2

26PF3_ADDR3

25PF4_ADDR4

24PF5_ADDR5

23PF6_ADDR6

22

PD5_SSPD6_LVIN

3

PE

0_A

N0

67

PE

1_A

N1

66

PE

2_A

N2

65

PE

3_A

N3

64

PE

4_A

N4

63

PE

5_A

N5

62

PE

6_A

N6

61

36P

C6_

DA

TA

637

PC

7_D

AT

A7

97PD0_RXD

98PD1_TXD

99PD2_MISO

100PD3_MOSI

1PD4_SCK

2

PB6_ADDR14

7PB7_ADDR15

14PBO_ADDR8

30P

C0_

DA

TA

031

PC

1_D

AT

A1

32P

C2_

DA

TA

233

PC

3_D

AT

A3

34P

C4_

DA

TA

435

PC

5_D

AT

A5

85PA6_OC2_OC1

86PA7_PA1_OC1

10PB1_ADDR9

11PB2_ADDR10

9PB3_ADDR11

21PB4_ADDR12

15PB5_ADDR13

8

95

58M

OD

A_L

IR57

MO

DB

_VS

TB

Y

79PA0_IC3

80PA1_IC2

81PA2_IC1

82PA3_IC4_OC5_OC1

83PA4_OC4_OC1

84PA5_OC3_OC1

59AVDD

70AVSS

89E

CLK

90EXTAL

96IR

O

LVOUT

U01

01M

C68

HC

11F

L0

11

R01

7010

K

0

4

10

5

NU

R01

160

C01

41

0.1u

F

24K

R01

52

330K

R01

32

6

2

R01

7210

K

R01

75

10K

7

R01

1510

K

R01

11

0

7

10

1

C01

0110

0pF

RA

M_C

SBU

S+

CN

TLV

LTG

5VD

SC

I_T

X

GP

1_IN

_AC

C3

GP

6_IN

_AC

C10

GP

2_O

UT

_AC

C4

R_W

FLA

SH

_CE

FLA

SH

_OE

5VD

IRQ

IRQ

AD

DR

_BU

S(0

:18

)

DA

TA

_BU

S(0

:7)

5VD

9

FR

OM

_U01

01_4

7

VS

_RA

C

5VD VS

_IN

T

GP

4_IN

_OU

T_A

CC

8

5VD

BO

OT

_CN

TR

L

GP

3_IN

_AC

C6

ON

_OF

F_C

ON

TR

OL

R_W

5VD

5VD

5VD

RE

SE

T

RE

SE

T

5VD

OP

T_P

TT

5VD

GP

5_IN

_AC

C9

5VD

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

SP

I(0:

10)

GP

IO(0

:13)

GP

IO(0

:13)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

CN

TLR

_AU

DIO

(0:7

)C

NT

LR_A

UD

IO(0

:7)

FR

OM

_U01

01_4

7F

RO

M_U

0101

_46

FR

OM

_U01

01_4

6

5VD

5VD

FLT

_A+

TE

MP

SE

NS

E

RA

M_C

S

5VD

VS

_GA

INS

EL

EX

T_B

D_R

EQ

RS

SI

5VD

RX

_AD

AP

T

5VD

5VD

5VD

FLT

_A+

FLT

_A+

FLA

SH

_OE

NC_XTAL

EC

LK

NCNC

LOC

K

RD

Y

ON

_OF

F_C

ON

TR

OL

NC

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

5VD

5VD

5VD

5VD

FLA

SH

_CE

R_W

VS

TB

Y

5VD

BA

TT

ER

Y_V

OLT

AG

E

ZW

G01

3104

9-O

Lo

w B

and

Ran

ge

1/2/

3 C

on

tro

ller

- T

11 (

for

PC

Bo

ard

s 84

8620

6B08

, 848

6207

B07

& 8

4869

08Z

04 )

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

33

13

EX

T_B

D_P

TT

EX

T_B

D_P

TT

NC

FLA

T/F

ILT

ER

ED

_RX

_AU

DIO

4

14

RE

AR

VIE

W

15

4

RS

232

INT

ER

FA

CE

BO

AR

D

18-P

IN C

ON

NE

CT

OR

NC

12

31

SP

EA

KE

R+

DIG

_OU

T2

(EX

TE

RN

AL_

ALA

RM

)

DA

TA

NC

10

5VD

Key

_Row

13

37

DIG

_IN

_OU

T_7

CS

*

GN

D

BU

S+

5

6 7 8 9

2 1

OP

T_C

S

VS

_RA

C

6

1

RS

T*

7 8

12

INT

_EX

T_V

dd

4

GR

OU

ND

GN

D

5

15 1416

RD

Y

40

18-P

IN C

ON

NE

CT

OR

11

DIG

_IN

_OU

T_4

18

1 2

2

SrD

_Snd

DIG

_IN

_OU

T_8

SW

B+

2016

Fla

t_T

x_R

tn

NC

1

10

BO

OT

_CN

TR

L

10 11

36

8

EX

P2_

CS

NC

174

1 2

2

EX

T_B

D_P

TT

GN

D

12

J040

1

5

GR

OU

ND

17 18

10

EX

T_B

D_P

TT

13

FA

ST

_SQ

DIS

CA

UD

IO

PC

B

23 21

14

38

9

Rx_

Aud

_Snd

5

Det

_Aud

_Snd

1517

15

6

MIS

O

2

5 6GR

OU

ND

GR

OU

ND

OP

T_P

TT

34

INT

ER

NA

L O

PT

ION

BO

AR

D

FLT

_A+

SP

EA

KE

R-

FLT

_A+

DIS

CA

UD

IOC

H_A

CT

NC

NC

NC

6

NC

9

VS

_CS

7

BU

S+

11

1

14 15 16

3

1

NC

NC

3 910

EX

PA

NS

ION

BO

AR

D

10

Rdy

/Req

2

15 16

NC

5VD

DB

3

MIS

O

GN

D

16

20

SC

I_T

X

39

DIG

_IN

_3

Tx_

Aud

_Snd

8

DB

1

22

12

Rx_

Aud

_Rtn

NC

12

SC

K_S

nd

35

NC

NC

18

8

LED

_EN

CLK

9

J055

1

28

11

CO

NT

RO

L H

EA

D

6

RE

SE

T

WA

RIS

TO

/FR

OM

RF

7

24

RS

SI

NC

J055

2

1932

EX

T_B

D_P

TT

EX

T_B

D_R

EQ

EX

T_B

D_C

S

717 12

Key

_Int

rp

13

DIG

_IN

_OU

T_4

9V3

VS

_MIC

3

NC

HA

NS

ET

_AU

DIO

11 12 13 14

20

NC

9V3

J055

2-1

J055

2-2

J055

2-3

J055

2-4

J055

2-5

J055

2-6

J055

2-7

J055

2-8

J055

2-9

J055

2-10

J055

2-11

J055

2-12

J055

2-13

J055

2-14

J055

2-15

J055

2-16

J055

2-17

J055

2-18

16

EX

P1_

CS

VS

_AU

DS

EL

26

FLA

T_T

X_R

TN

6

CS

X29

INT

_MIC

DA

TA

ON

VS

_IN

T

CLK

EX

P_B

D_P

TT

18

40-P

IN C

ON

NE

CT

OR

DB

5

SP

I_M

ISO

EX

T_M

IC_A

UD

IO

4

VS

_CS

DB

4

7

VS

_GA

INS

EL

Gnd

EX

P2_

CS

8

DB

0

DA

TA

EX

P1_

CS

5

SrD

_Rtn

19

19

DIG

_IN

_6 W

ITH

WA

KE

UP

CLK

Tx_

Aud

_Rtn

PT

T

18

Vdd

d

25

FLA

T_T

X_A

UD

IO

3

10

33

OP

T_C

S

GP

4_IN

_OU

TS

PI_

CLK

SP

I_M

OS

I

J055

2-19

J055

2-20

NC

TO

/FR

OM

RF

8

DA

TA

GM

300

SP

EA

KE

R-

ON

_OF

F_C

ON

TR

OL

20-P

IN C

ON

NE

CT

OR

1817

J045

1

DIG

_IN

_6 W

ITH

WA

KE

UP

(IG

NIT

ION

)

AC

CE

SS

OR

Y

Opt

_Bd_

En

Key

_Col

3 4

EX

P_B

D_R

EQ

NC

NC

DB

6

5VD

3

OF

F_B

AT

T_D

AT

A_O

UT

CLK

30

13

J050

1

4 11

9

R/W

*

EX

P_B

D_P

TT

SP

EA

KE

R+

14

11

DB

2

DIG

_IN

1

3

17

GR

OU

ND

27

DB

7

GN

D

A0

7

9D

IG_I

N_5

WIT

H W

AK

EU

P (

EM

ER

GE

NC

Y)

5

12-P

IN C

ON

NE

CT

OR

J055

1-36

82pF

C05

17

J040

1-1

10

CN

TLV

LTG

_CN

TLR

_1

J055

1-3

IN_5

V_R

F_R

EG

_CN

TLR

_1

J040

1-12

470p

F

C04

57

MO

SB

IAS

_3

NU

NU

L048

139

0nH

470p

F

C04

49

C04

30

470p

F

J055

1-37

J050

1-20

RE

SE

T_C

NT

LR_1

PA

SU

PV

LTG

_CN

TR

L_1

J050

1-6

J040

1-2

VR

0503

CLK

_CN

TLR

_1

CS

X

C05

18

J045

1-17

470p

F

82pF

NU

C04

61

J045

1-3

9V3

NU

0.1u

F

C05

54

470p

F

C05

02

C04

53

NU

470p

F

R05

104.

7K

J055

1-20

C04

09

J045

1-10

NU

470p

F

C05

09

470p

F

J055

1-5

470p

F

C04

96

J045

1-13

470p

F

C05

15

J055

1-25

J040

1-11

VR

0501

J055

1-4

J055

1-14

J050

1-2

J055

1-31

82pF

C04

72

R04

12

3A

047

0pF

J045

1-5

C04

31

10R

0592

J055

1-23

J055

1-18

R05

1110

0K

CS

X_C

NT

LR_1

J040

1-5

J055

1-27

J045

1-12

VR

0510

TE

MP

SE

NS

E

9

C05

06

470p

F

5V_C

NT

LR_1

470p

F

C04

29

82pF

C04

71

5V

J055

1-19

R05

1215

K

C04

26

470p

F

C05

01

.01u

F

C04

68

NU

470p

F

470p

F

C05

14

J050

1-3

VR

0505

J055

1-12

J040

1-6

J055

1-6

J055

1-10

NU

470p

F

C05

7547

0pF

C04

87

470p

F

C04

64

J055

1-34

NU

10R

0409

J045

1-2

470p

F

C05

11

CLK

C05

12

470p

F

J055

1-42

J050

1-12

J050

1-11

7

TP

0497

TP

0530

16_8

MH

Z

J055

1-1

J045

1-9

J050

1-17

16_8

MH

Z_C

NT

LR_1

J055

1-32

DA

TA

_CN

TLR

_2

470p

F

C05

03

NU

C04

62

82pF

C04

86

470p

F

470p

F

C04

99

CS

X_C

NT

LR_2

C04

70

470p

F

27K

R05

41

470p

F

C04

10

J045

1-1

NU

0.1u

FC

0592

J055

1-21

NU

470p

F

C04

03

1KR

0442

2

J050

1-8

470p

F

DIS

CA

UD

IO_C

NT

LR_1

C04

77

LOC

K_C

NT

LR_1

0.1u

FC

0591

R05

2947

K

C04

95

470p

F

J055

1-41

470p

F

C04

92R

SS

I

MO

SB

IAS

_3_C

NT

LR_1

470p

F

C04

56

470p

FN

UN

U

C04

55

R04

6710

J050

1-7

J055

1-9

470p

F

470p

F

C04

27

C04

82

J055

1-38

CS

X

82pF

C04

28J0

451-

18

8C

LK_C

NT

LR_2

J045

1-7

470p

F47

0pF

C04

52C

0422

INT

_SW

B_C

NT

LR_1

NU

470p

F

CLK

INT

_SW

B

NU

C04

07

J045

1-8

220

R05

38

J045

1-6

1

100K

R05

43

C04

85

470p

F

C04

7847

0pF

R04

82

00

R04

6810

0K

R04

81

470p

FN

U

C04

43

470p

F

J050

1-9

C04

74

CN

TLV

LTG

J055

1-28

9

9V3_

CN

TLR

_1

470p

F

8

NU

C05

58

82pF

C04

21

J045

1-16

R04

0710

MO

SB

IAS

_2

470p

F

C05

08

J055

1-7

470p

F

C04

76

J055

1-33

TP

0492

NU

C05

76

470p

F

C05

410.

47uF

9

R04

410

J050

1-4

100

J055

1-15

R04

08

470p

F

C04

66

C04

08

82pF

NU

J055

1-40

NU

DA

TA

_CN

TLR

_1

NU

390n

H

L048

2

J055

1-22

C04

47

470p

F

3

C04

88

470p

F 470p

F

PA

SU

PV

LTG

C05

13

470p

F

1K

NU

C04

60

R05

35

J050

1-18

J050

1-19

470p

F

C05

04

R05

93

VR

0504

100K

MO

DIN

J055

1-8

J050

1-14

PA

_PW

R_S

ET

_1_C

NT

LR_1

J055

1-2

J055

1-16

470p

F

C04

41

J050

1-1

VR

0541

RE

SE

T

J040

1-4

J040

1-10

J040

1-9

J040

1-7

J040

1-3

J040

1-8

470p

F

C04

23

J055

1-29

47uF

C05

42

PA

_PW

R_S

ET

0R

0533

C04

90

470p

F

J055

1-30

J055

1-35

J045

1-14

J045

1-4

24K

J055

1-17

R05

91

4

C04

93

470p

F

R05

31

560

DA

TA

IN_5

V_R

F_R

EG

J050

1-10

C04

45

470p

F47

0pF

C04

46

82pF

C04

63

C04

51

NU

NU

470p

F

NO

ISE

_BLN

KR

_CN

TLR

_1

82pF

C04

01

J055

1-24

NU

0.1u

FC

0593

C04

06

NU

470p

F

DIS

CA

UD

IO

J050

1-5

C04

84

470p

F

470p

F

C04

58C

0459

NU

NU

470p

F

R05

2510

0K

470p

F

C04

91

J055

1-13

470p

F

C04

83

NO

ISE

_BLN

KR

C04

48

LOC

K

470p

F

220

R04

01

J045

1-11

J055

1-11

470p

F

C04

67

C05

59

DA

TA

NU

NU

470p

F

C05

60

470p

FN

U

VR

0509

MO

SB

IAS

_2_C

NT

LR_1

470p

F

C04

94

MO

DIN

_CN

TLR

_1

C05

16

.01u

F

RS

SI_

CN

TLR

_1C

0497

470p

F

470p

FN

U

C04

11

NU

470p

F

C04

02

470p

F

C04

42

F04

01

4.7K

R05

39

J055

1-39

J055

1-26

J050

1-13

R05

3722

0

J045

1-15

47K

NU

R05

42

VR

0537

82pF

C04

73

R05

3022

K

TE

MP

SE

NS

E_C

NT

LR_1

C05

10

470p

F

470p

F

J050

1-16

J050

1-15

C05

05

8

SP

KR

+

FLT

_A+

5VD

GP

1_IN

_AC

C3

ON

_OF

F_C

ON

TR

OL

EX

P1_

CS

EX

P_B

D_R

EQ

GP

1_IN

_AC

C3

SP

I_C

LKS

PI_

DA

TA

SP

KR

-E

XT

_MIC

GP

1_IN

_AC

C3

GP

2_O

UT

_AC

C4

GP

5_IN

_AC

C9

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

SP

KR

+

GP

3_IN

_AC

C6

GP

4_IN

_OU

T_A

CC

8

EX

P2_

CS

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

SP

KR

-

INT

_SW

B+

9V3

SP

I_M

ISO

DIS

CA

UD

IO

MO

DIN

CH

_AC

T

5VD

9V3

5VD

SP

I_M

ISO

RE

SE

T

FLT

_A+

DIS

CA

UD

IO

GP

4_IN

_OU

T_A

CC

8

RD

Y

RD

Y

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

INT

_MIC

INT

_MIC

INT

_MIC

SP

KR

+S

PK

R+

DIS

CA

UD

IOD

ISC

AU

DIO

HA

ND

SE

T_A

UD

IOH

AN

DS

ET

_AU

DIO

HA

ND

SE

T_A

UD

IO

EX

P2_

CS

RS

SI

RS

SI

BO

OT

_CN

TR

L

5VD

IN_5

V_R

F_R

EG

BU

S+

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

FLA

T_T

X_R

TN

5VD

P4_

IN_O

UT

_AC

C8

EX

P1_

CS

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

GP

1_IN

_AC

C3

CH

_AC

TC

H_A

CT

CH

_AC

TD

ISC

AU

DIO

FLT

_A+

SC

I_T

X

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

EM

ER

GE

NC

Y_C

ON

TR

OL

RS

SI

EX

T_S

WB

+

RD

Y

GP

4_IN

_OU

T_A

CC

8G

P4_

IN_O

UT

_AC

C8

CH

_AC

T

SP

I_D

AT

AS

PI_

MIS

O

EX

P_B

D_R

EQ

EX

P1_

CS

OP

T_C

SR

DY

GP

4_IN

_OU

T_A

CC

8

SP

I_C

LK

DIS

CA

UD

IO

SP

I(0:

10)

MO

SB

IAS

_3

VS

_MIC

VS

_MIC

16_8

MH

Z

5V_R

F

NO

ISE

_BLN

KR

MO

SB

IAS

_2

PA

_PW

R_S

ET

EX

P1_

CS

9V3

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

RE

SE

T

PA

SU

PV

LTG

BU

S+

FLT

_A+

BU

S+

BU

S+

RE

SE

TR

ES

ET

ON

_OF

F_C

ON

TR

OL

ON

_OF

F_C

ON

TR

OL

CN

TLV

LTG

RS

SI

LOC

K

5VD

5VD

FLT

_A+

FLT

_A+

SP

I_D

AT

A

SP

I_C

LK

SP

I_M

ISO

VS

_CS

OP

T_C

SR

ES

ET

EX

T_M

ICE

XT

_MIC

SP

KR

-S

PK

R-

TE

MP

SE

NS

E

OP

T_C

S

SP

I_D

AT

A

TX

_AU

D_R

TN

VS

_CS

VS

_MIC

SP

I_C

LK

FLA

T_R

X_S

ND

RX

_AU

D_R

TN

UR

X_S

ND

TX

_AU

D_S

ND

VS

_IN

T

5VD

VS

_AU

DS

EL

VS

_GA

INS

EL

SP

I_M

ISO

VS

_RA

C

IGN

ITIO

N_C

ON

TR

OL

FLT

_A+

FL0

8306

81O

Lo

w B

and

Ran

ge

1 an

d 2

IO -

T6

(fo

rP

C B

oar

ds

8486

206B

06 &

848

6207

B05

4-34

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

NC

BU

S+

10

9V3

VS

_MIC

DA

TA

GM

300

SP

EA

KE

R-

CLK

30

13

J050

1

J045

1

DIG

_IN

_6 W

ITH

WA

KE

UP

(IG

NIT

ION

)F

LAT

/FIL

TE

RE

D_R

X_A

UD

IO

15 14

NC

7

VS

_GA

INS

EL

Gnd

11

DB

2

DIG

_IN

1

3

EX

P1_

CS

5 6

SP

EA

KE

R-

DIG

_IN

_OU

T_8

SW

B+

CLK

9

CS

*

24

DIS

CA

UD

IO

9

R/W

*

6

NC

13

DIG

_IN

_OU

T_4

GN

D

5

1517

15

6

40

18-P

IN C

ON

NE

CT

OR

RS

232

INT

ER

FA

CE

BO

AR

D

GN

D

BU

S+

5

NC

RS

SI

16

1

PC

B

23 21

SP

I_C

LKS

PI_

MO

SI

SC

K_S

nd

35

NC

3 4

EX

P_B

D_R

EQ

NC

NC

DB

6

AC

CE

SS

OR

Y

16

DB

3

MIS

O

NC

9 10 11

14

Rdy

/Req

2

GR

OU

ND

10

6

19

9

VS

_CS

RD

Y

EX

T_B

D_R

EQ

EX

T_B

D_C

S

12

18

Opt

_Bd_

En

61 2

13 14 15 16 17 18

RE

AR

VIE

W

15

16

34

INT

ER

NA

L O

PT

ION

BO

AR

D

39 38

GN

D

J055

2

NC

GR

OU

ND

GR

OU

ND

NC

BO

OT

_CN

TR

L

20

GR

OU

ND

DB

1

22

GP

4_IN

_OU

T

TO

/FR

OM

RF

8

SP

I_M

ISO

5VD

3

OF

F_B

AT

T_D

AT

A_O

UT

EX

T_B

D_P

TT

GN

D5V

D9V

3

5VD

EX

T_B

D_P

TT

13

10

Fla

t_T

x_R

tn

NC

1 2

SrD

_Snd

12 13

EX

T_B

D_P

TT

12

Rx_

Aud

_Rtn

12

31

4 12

18-P

IN C

ON

NE

CT

OR

717

1 2

7

9 11 12

20

NC

NC

10

OP

T_C

S

VS

_RA

C

8

RS

T*

7 8

14

INT

_EX

T_V

dd

4

EX

T_B

D_P

TT

9

2 1

NC

CLK

7

4 11

J055

1

28

FLT

_A+

Key

_Col

DIG

_OU

T2

(EX

TE

RN

AL_

ALA

RM

)

DA

TA

8

EX

P2_

CS

FA

ST

_SQ

CO

NT

RO

L H

EA

DJ0

401

5

4

EX

PA

NS

ION

BO

AR

D

OP

T_P

TT

16

20

SC

I_T

X

INT

_MIC

DIG

_IN

_3

Tx_

Aud

_Snd

Rx_

Aud

_Snd

SP

EA

KE

R+

BU

S+

11

10 11

NC

1

14 15 16 174

NC

HA

NS

ET

_AU

DIO

3

20-P

IN C

ON

NE

CT

OR

1817

GR

OU

ND

SrD

_Rtn

RE

SE

T

FLT

_A+

DIS

CA

UD

IOC

H_A

CT

DIG

_IN

_OU

T_4

DA

TA

EX

P1_

CS

VS

_AU

DS

EL

26

FLA

T_T

X_R

TN

8

5

Det

_Aud

_Snd

18

40-P

IN C

ON

NE

CT

OR

DB

5

EX

P_B

D_P

TT

GN

D

13

37

DIG

_IN

_OU

T_7

2

LED

_EN

EX

P2_

CS

36

DB

0

DA

TA

11

CLK

Tx_

Aud

_Rtn

PT

T

18

8

Vdd

d

2532

EX

T_B

D_P

TT

27O

N

VS

_IN

T

DIG

_IN

_5 W

ITH

WA

KE

UP

(E

ME

RG

EN

CY

)

5

Key

_Row

Key

_Int

rp

3

1

NC

NC

3

7 10

A0

EX

T_M

IC_A

UD

IO

4

VS

_CS

DB

4

EX

P_B

D_P

TT

SP

EA

KE

R+

14

3

ON

_OF

F_C

ON

TR

OL

33

OP

T_C

S

17

12-P

IN C

ON

NE

CT

OR

FLA

T_T

X_A

UD

IO

DB

7

19

DIG

_IN

_6 W

ITH

WA

KE

UP

7

9

6

CS

X29

12

MIS

O

2

5 6

18

8

19

WA

RIS

TO

/FR

OM

RF

10

TE

MP

SE

NS

E_C

NT

LR_1

J050

1-16

C05

05

470p

F

MO

DIN

J055

1-8

20V

VR

0505

CLK

_CN

TLR

_1

C05

18

470p

F

33V

VR

0509

470p

F

C04

23

J050

1-20

1000

pF

C05

60

J040

1-11

J050

1-17

PA

_PW

R_S

ET

16_8

MH

Z_C

NT

LR_1

470p

F

PA

SU

PV

LTG

C04

88

C05

13

470p

F

470p

F

DIS

CA

UD

IO

C04

84

NU

R05

4247

K

5.6V

VR

0537

82pF

C05

17

CN

TLV

LTG

_CN

TLR

_1

J040

1-1

J050

1-4

9

J055

1-3

J055

1-10

470p

F

C05

10

470p

F

C04

87

C04

31

470p

F

10R

0592

J045

1-5

J050

1-14

470p

F

C05

14

J050

1-3

R05

2510

0K

PA

_PW

R_S

ET

_1_C

NT

LR_1

J055

1-25

220

R05

38

20V

VR

0501

J055

1-4

J055

1-14

C05

42

47uF

0R

0533

J045

1-11

220

R04

01

J055

1-11

J055

1-37

NO

ISE

_BLN

KR

_CN

TLR

_1

3A24V

F04

01

470p

F

J050

1-5

J055

1-41

C04

95

J055

1-32

J045

1-1

J055

1-36

R05

3022

K

J040

1-7

J040

1-10

470p

F

RS

SI_

CN

TLR

_1C

0497

R04

410

470p

F

C05

75

C05

41

NU

0.47

uF

DA

TA

_CN

TLR

_1

J055

1-40

R04

120

J055

1-20

3

J045

1-10

C05

09

J045

1-17

470p

F

82pF

J050

1-2

C04

72

J050

1-12

J050

1-11

J045

1-6

1

100K

R05

43

J055

1-23

100K

J055

1-18

R05

11

CS

X_C

NT

LR_1

DA

TA

J040

1-5

470p

F

C05

59

R05

2947

K

NU

J055

1-19

470p

F

C04

26

C05

01

.01u

F

J045

1-16

82pF

C04

21

82pF

C04

73

J055

1-21

J040

1-4

J040

1-9

J040

1-3

J040

1-8

470p

F

DIS

CA

UD

IO_C

NT

LR_1

C04

77

LOC

K_C

NT

LR_1

0.1u

FC

0591

C04

47

470p

F

MO

DIN

_CN

TLR

_1

J055

1-22

J045

1-4

R05

9124

K

J055

1-31

C05

12

470p

F

CLK

MO

SB

IAS

_2_C

NT

LR_1

J055

1-42

470p

F

C04

42

IN_5

V_R

F_R

EG

_CN

TLR

_1

J040

1-12

470p

F

C04

85

J045

1-12

33V

VR

0510

J055

1-27

TE

MP

SE

NS

E

9

470p

F

C04

29

J050

1-15

15K

R05

12

80.

1uF

C05

92

R04

07

5V

560

10

IN_5

V_R

F_R

EG

R05

31

J055

1-12

J050

1-8

CLK

_CN

TLR

_2

2

J045

1-18

8L0

482

J045

1-7

NU

390n

H

470p

F

C04

94

C05

16

.01u

F

100

J055

1-15

R04

08

470p

F

7

C05

11

J055

1-29

4.7K

R05

39

J055

1-39

R05

104.

7K

J055

1-13

470p

F

C04

83

J050

1-1

470p

F

5V_C

NT

LR_1

C05

06V

R05

4114

V

RE

SE

T

C04

41

470p

F

470p

F

4C

SX

C04

93

DA

TA

TP

0530

J050

1-13

J055

1-26

J055

1-6

J040

1-6

J055

1-34

470p

F

82pF

C04

71

C04

22

C04

7847

0pF

0R

0482

R04

810

R04

6810

0K

NU

C04

43

470p

F

J055

1-17

J055

1-30

470p

F

J050

1-9

C04

74

470p

F

CN

TLV

LTG

C04

91

NU

L048

139

0nH

C04

49

MO

SB

IAS

_3

470p

F1K

R04

42

DA

TA

_CN

TLR

_2

C05

03

470p

F

PA

SU

PV

LTG

_CN

TR

L_1

J050

1-6

J040

1-2

VR

0503

20V

TP

0497

TP

0492

220

R05

37

CLK

J045

1-15

INT

_SW

B

J045

1-8

10R

0409

J045

1-2

0.1u

FC

0593

470p

F

C05

08

J050

1-10

MO

SB

IAS

_2

C04

90

9V3

470p

F

J055

1-35

J045

1-14

J055

1-1

J055

1-28

J045

1-9

1KR05

35

J050

1-19

C04

30

470p

F

VR

0504

33V

100K

R05

93

R05

5610

0

J045

1-13

C05

15

470p

F

470p

F

470p

F

C04

99

C04

86

CS

X_C

NT

LR_2

RE

SE

T_C

NT

LR_1

C04

76

470p

F

470p

F

J055

1-33

C04

82

C05

76

470p

F

9

9V3_

CN

TLR

_1

NU

470p

FN

U

C05

58

J055

1-24

NO

ISE

_BLN

KR

INT

_SW

B_C

NT

LR_1

LOC

K

RS

SI

MO

SB

IAS

_3_C

NT

LR_1

J055

1-2

J055

1-16

C04

70

470p

F

R05

4127

K

470p

F

C05

02

C04

92

470p

F

J050

1-18

470p

F

C05

04

J055

1-5

C04

96

470p

F

16_8

MH

Z

CS

X

J055

1-7

J055

1-38

82pF

8

C04

28

470p

F

C04

48

470p

F

C04

46C

0445

470p

F

0.1u

F

C05

54

J045

1-3

NU

R04

6710

J050

1-7

J055

1-9

SP

I_C

LK

EX

P1_

CS

GP

4_IN

_OU

T_A

CC

8O

PT

_CS

RD

YO

PT

_PT

T

EX

P2_

CS

EX

P_B

D_R

EQ

5VD

SP

KR

-S

PK

R+

ON

_OF

F_C

ON

TR

OL

BU

S+

BU

S+

470p

F

C04

27

GP

2_O

UT

_AC

C4

GP

5_IN

_AC

C9

GP

7_IN

_OU

T_A

CC

12

GP

8_IN

_OU

T_A

CC

14

SP

KR

+

GP

3_IN

_AC

C6

GP

4_IN

_OU

T_A

CC

8

EX

P2_

CS

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

6_IN

_AC

C10

GP

1_IN

_AC

C3

FLT

_A+

CH

_AC

T

GP

1_IN

_AC

C3

SP

I_D

AT

AS

PI_

MIS

O

9V3

SP

I_M

ISO

DIS

CA

UD

IO

MO

DIN

CH

_AC

T

5VD

9V3

5VD

SP

I_M

ISO

RE

SE

T

FLT

_A+

R05

5510

0D

ISC

AU

DIO

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

SE

XP

_BD

_RE

QG

P1_

IN_A

CC

3

SP

I_C

LKS

PI_

DA

TA

SP

KR

-E

XT

_MIC

GP

1_IN

_AC

C3

INT

_MIC

INT

_MIC

INT

_MIC

SP

KR

+S

PK

R+

DIS

CA

UD

IOD

ISC

AU

DIO

HA

ND

SE

T_A

UD

IOH

AN

DS

ET

_AU

DIO

HA

ND

SE

T_A

UD

IO

RS

SI

RS

SI

BO

OT

_CN

TR

L

5VD

IN_5

V_R

F_R

EG

BU

S+

GP

1_IN

_AC

C3

GP

1_IN

_AC

C3

INT

_SW

B+

GP

4_IN

_OU

T_A

CC

8E

XP

1_C

S

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

GP

1_IN

_AC

C3

CH

_AC

TC

H_A

CT

CH

_AC

TD

ISC

AU

DIO

FLT

_A+

SC

I_T

X

RX

_FLA

T_F

ILT

ER

ED

_AU

DIO

EM

ER

GE

NC

Y_C

ON

TR

OL

RS

SI

EX

T_S

WB

+

RD

YR

DY

RD

Y

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

NO

ISE

_BLN

KR

MO

SB

IAS

_2

PA

_PW

R_S

ET

EX

P1_

CS

9V3

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

4_IN

_OU

T_A

CC

8G

P4_

IN_O

UT

_AC

C8

DIS

CA

UD

IO

SP

I(0:

10)

MO

SB

IAS

_3

VS

_MIC

VS

_MIC

FLA

T_T

X_R

TN

5VD

FLT

_A+

BU

S+

BU

S+

RE

SE

TR

ES

ET

ON

_OF

F_C

ON

TR

OL

ON

_OF

F_C

ON

TR

OL

16_8

MH

Z

5V_R

F

5VD

5VD

FLT

_A+

FLT

_A+

SP

I_D

AT

A

SP

I_C

LK

SP

I_M

ISO

VS

_CS

OP

T_C

SR

ES

ET

EX

T_M

ICE

XT

_MIC

SP

KR

-S

PK

R-

RE

SE

T

PA

SU

PV

LTG

BU

S+

TE

MP

SE

NS

E

CN

TLV

LTG

RS

SI

LOC

K

OP

T_C

S

SP

I_D

AT

A

TX

_AU

D_R

TN

VS

_CS

VS

_MIC

SP

I_C

LK

FLA

T_R

X_S

ND

RX

_AU

D_R

TN

UR

X_S

ND

TX

_AU

D_S

ND

VS

_IN

T

5VD

VS

_AU

DS

EL

VS

_GA

INS

EL

SP

I_M

ISO

VS

_RA

C

IGN

ITIO

N_C

ON

TR

OL

FLT

_A+

J055

2-1

J055

2-2

J055

2-3

J055

2-4

J055

2-5

J055

2-6

J055

2-7

J055

2-8

J055

2-9

J055

2-10

J055

2-11

J055

2-12

J055

2-13

J055

2-14

J055

2-15

J055

2-16

J055

2-17

J055

2-18

J055

2-19

J055

2-20

FL0

8306

82O

Lo

w B

and

Ran

ge

3 IO

- T

9 (f

or

PC

Bo

ard

848

6908

Z02

)

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

35

R/W

*

Cha

nged

C05

93 b

ack

to 0

.1uF

SP

I_M

OS

I

T7

17.

Feb

ruar

200

0

Cha

nged

C05

xx fr

om 0

402

to 0

603

type

whe

re r

equi

red

NC

NC

7

T8

29.

May

200

0

Add

ed F

use

6580

542Z

01

T9

24.

JU

LY 2

000

Add

ed tr

ace

from

J05

51-6

to n

ew R

0556

100

Ohm

s to

BU

S+

Add

ed tr

ace

from

J05

52-1

0 to

new

R05

55 1

00 O

hms

to B

US

+

T8

010

2727

B68

T9

010

2727

B68

P5

010

2726

B94

CLK

9

Fus

e P

/N65

8054

2Z01

P2

010

2726

B66

CS

*

T6

010

2727

B64

T3

010

2727

B40

/41

24

DIS

CA

UD

IO

NC

BU

S+

Bac

k to

one

con

trol

ler

for

both

cha

ssi

s

10

T4

18.

Nov

embe

r 19

99

Rem

oved

Cap

acito

rs C

0519

- C

0540

&C

0498

(ne

ver

used

)

DIG

_IN

_OU

T_4

9

18

9V3

VS

_MIC

13

2G

ND

5

DA

TA

GM

300

SP

EA

KE

R-

CLK

30

13

J050

1

J045

1

DIG

_IN

_6 W

ITH

WA

KE

UP

(IG

NIT

ION

)F

LAT

/FIL

TE

RE

D_R

X_A

UD

IO

15 1416

1

PC

B

23 21

Add

ed J

0552

RS

232

Inte

rfac

e B

oard

Con

nect

orR

emov

ed R

esis

tors

R05

21 -

R05

24

T5

21.

Dec

embe

r 19

99

Rem

oved

Cap

acito

rs C

0401

- C

0411

& C

0451

-C04

68 (

neve

r us

ed)

Atte

ntio

n: F

rom

now

on

ther

e ar

e tw

o ve

rsio

ns o

f con

trol

lers

ava

ilabl

e,on

e fo

r LD

MO

S P

A C

HA

SS

IS a

nd o

ne fo

r B

IPO

LAR

PA

CH

AS

SI

S

T5

21.

Jan

uar

2000

SP

I_C

LK

8

Add

ed R

0442

/R05

43/R

0593

Rem

oved

RX

_AD

AP

T T

estp

oint

35

OF

F_B

AT

T_D

AT

A_O

UT

3 4

VS

_GA

INS

EL

Gnd

11

DB

2

DIG

_IN

1

3

EX

P1_

CS

5 6

SP

EA

KE

R-

DIG

_IN

_OU

T_8

SW

B+

14

Rdy

/Req

2

GR

OU

ND

10

6

19

9

VS

_CS

RD

Y

EX

T_B

D_R

EQ

EX

T_B

D_C

S

12

2

6

NC

1

12 13 14

1517

15

6

40

18-P

IN C

ON

NE

CT

OR

RS

232

INT

ER

FA

CE

BO

AR

D

GN

D

BU

S+

5

NC

RS

SI

GN

D

J055

2

NC

GR

OU

ND

GR

OU

ND

NC

BO

OT

_CN

TR

L

20

GR

OU

ND

DB

1

22

GP

4_IN

_OU

T

TO

/FR

OM

RF

DA

TA

Ass

igne

d G

P W

ITH

WA

KE

UP

on

EX

PA

NS

ION

BO

AR

D C

ON

NE

CT

OR

SC

K_S

nd

3

FA

ST

_SQ

EX

T_B

D_P

TT

GN

D

EX

P_B

D_R

EQ

NC

NC

DB

6

AC

CE

SS

OR

Y

16

DB

3

MIS

O

NC

9 10 11 12 13

EX

T_B

D_P

TT

12

Rx_

Aud

_Rtn

12

31

4 12

18-P

IN C

ON

NE

CT

OR

717

1

HA

NS

ET

_AU

DIO

Opt

_Bd_

En

6

11

17

20

NC

15 16 17 18

RE

AR

VIE

W

15

16

34

INT

ER

NA

L O

PT

ION

BO

AR

D

P6

010

2727

B03

/04

39 38

9

2 1

NC

CLK

7

4 11

J055

1

28

FLT

_A+

Key

_Col

DIG

_OU

T2

(EX

TE

RN

AL_

ALA

RM

)

EX

P2_

CS

SP

I_M

ISO

5VD

EX

P2_

CS

11

CO

NT

RO

L H

EA

DJ0

401

5VD

9V3

5VD

EX

T_B

D_P

TT

13

10

Fla

t_T

x_R

tn

NC

1 2

SrD

_Snd

P4

010

2726

B86

SP

EA

KE

R+

BU

S+

11

10 11

NC

1

14 15 16 174

NC

33

7

9

18

17

GR

OU

ND

SrD

_Rtn

NC

10

OP

T_C

S

VS

_RA

C

8

RS

T*

7 8

14

INT

_EX

T_V

dd

4

EX

T_B

D_P

TT

5

Det

_Aud

_Snd

18

40-P

IN C

ON

NE

CT

OR

DB

5

EX

P_B

D_P

TT

GN

D

P3

010

2726

B70

13

37

DIG

_IN

_OU

T_7

2

LED

_EN

Add

ed R

0508

066

2057

A41

470

T4

010

2727

B51

/52

8

DA

TA

DIG

_IN

_6 W

ITH

WA

KE

UP

CLK

Tx_

Aud

_Rtn

P1

010

2726

B32

5

4

EX

PA

NS

ION

BO

AR

D

OP

T_P

TT

16

20

SC

I_T

X

INT

_MIC

DIG

_IN

_3

Tx_

Aud

_Snd

Rx_

Aud

_Snd

ON

VS

_IN

T

T2

010

2727

B24

/25

DIG

_IN

_5 W

ITH

WA

KE

UP

(E

ME

RG

EN

CY

)

5

Key

_Row

Key

_Int

rp

3

1

NC

NC

3

ON

_OF

F_C

ON

TR

OL

T10

21.

Feb

. 200

1

3

20-P

IN C

ON

NE

CT

OR

OP

T_C

S

12-P

IN C

ON

NE

CT

OR

FLA

T_T

X_A

UD

IO

DB

7

RE

SE

T

FLT

_A]

DIS

CA

UD

IOC

H_A

CT

DIG

_IN

_OU

T_4

DA

TA

I/O H

isto

ry

EX

P1_

CS

VS

_AU

DS

EL

26

FLA

T_T

X_R

TN

8

7

9

6

CS

X29

12

MIS

O

2

5 6

18

8

Cha

nge

R05

30 fr

om 0

6620

57B

47 0

to 0

6620

57A

81 2

2K

Cha

nge

T11

Con

trol

ler

I/O K

it N

o: fr

om 0

1040

12J9

6 to

010

4013

J52

Bec

ause

of C

0560

(60

3 S

ize)

Add

ed R

0509

066

2057

B47

0

36

DB

0

19

PTT

18

8

T5

010

2727

B51

/52

T7

010

2727

B68

T6

no

chan

ges

Vdd

d

25

P7

010

2727

B15

/16

32

EX

T_B

D_P

TT

27

19W

AR

IS

TO

/FR

OM

RF

7 10

A0

EX

T_M

IC_A

UD

IO

4

VS

_CS

DB

4

EX

P_B

D_P

TT

SP

EA

KE

R+

14

3

PA

_PW

R_S

ET

CO

NT

RO

LLE

R B

IPO

LAR

PA

Kla

us-D

iete

r D

eman

t

WA

RIS

MO

BIL

E

INT

ER

FA

CE

/ C

ON

NE

CT

OR

S4

1 3 A

?

3

5

T9

08.1

2.18

12:3

6:17

pm

Mon

day,

Feb

ruar

y 26

, 200

1P

rase

thy

Lee,

IL26

Kla

us-D

iete

r D

eman

t

T10

23.

May

. 200

1

470p

F

PA

SU

PV

LTG

C05

13

TE

MP

SE

NS

E_C

NT

LR_1

J050

1-16

10

C05

0547

0pF

MO

DIN

J055

1-8

VR

0505

CLK

_CN

TLR

_1

C05

1847

0pF

VR

0509

C04

8747

0pF

C04

3147

0pF

470p

FC

0423

470p

FC

0514

J050

1-3

J050

1-20

C05

6010

00pF

J040

1-11

J050

1-17

J045

1-11

16_8

MH

Z_C

NT

LR_1

220

R04

01

J055

1-11

C04

8847

0pF

3A

F04

01

J050

1-5

C04

9547

0pF

470p

F

DIS

CA

UD

IO

47K

C04

84

NU

R05

42

VR

0537

J040

1-1

82pF

C05

17

CN

TLV

LTG

_CN

TLR

_1

J050

1-4

9

J055

1-3

J055

1-10

470p

FC

0510

0.47

uFC

0541

J055

1-40

10R

0592

J045

1-5

J050

1-14

3

J055

1-20

R05

2510

0K

PA

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R_S

ET

_1_C

NT

LR_1

J055

1-25

220

R05

38

VR

0501

J055

1-4

J055

1-14

C05

42

47uF

R05

33

J055

1-23

0

J055

1-18

R05

1110

0K

CS

X_C

NT

LR_1

J055

1-37

NO

ISE

_BLN

KR

_CN

TLR

_1

R05

29

47K

J055

1-19

J055

1-41

J045

1-1

J055

1-36

J055

1-32

R05

30

22K

J040

1-10

J040

1-7

470p

F

RS

SI_

CN

TLR

_1

C04

97

R04

410

470p

F

NU

470p

FC

0575

DIS

CA

UD

IO_C

NT

LR_1

C04

77

DA

TA

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TLR

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LOC

K_C

NT

LR_1

0R04

12

C04

4747

0pF

J055

1-22

MO

DIN

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TLR

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J045

1-10

470p

FC

0509

J045

1-17

J050

1-2

C04

7282

pF

J050

1-11

J045

1-6

1

J050

1-12

100K

R05

43

J045

1-12

VR

0510

DA

TA

J040

1-5

NU

470p

FC

0559

470p

FC

0429

J050

1-15

R05

1215

K

C04

2647

0pF

C05

01.0

1uF

C04

21

J045

1-16

82pF

82pF

C04

73

J040

1-4

J055

1-21

J040

1-9

J040

1-3

J040

1-8

J045

1-18

8C

LK_C

NT

LR_2

0.1u

FC

0591

470p

FC

0494

C05

16.0

1uF

J045

1-4

R05

9124

K

J055

1-31

470p

F

CLK

C05

12

MO

SB

IAS

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NT

LR_1

J055

1-42

470p

FC

0442

IN_5

V_R

F_R

EG

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TLR

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C04

85

J040

1-12

J055

1-13

470p

FC

0483

9

470p

F

J055

1-27

TE

MP

SE

NS

E

RE

SE

T

VR

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470p

FC

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80.

1uF

C05

92

R04

07

5V

560

10

IN_5

V_R

F_R

EG

R05

31

J055

1-12

2

J050

1-8

L048

2

J045

1-7

NU

390n

H

C04

7847

0pF

J055

1-15

R04

0810

0

470p

FC

0511

7

R05

39

J055

1-29

4.7K

J055

1-39

R05

104.

7K

NU

L048

139

0nH

J050

1-1

C05

0647

0pF

C04

49

5V_C

NT

LR_1

MO

SB

IAS

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470p

F1K

R04

42

ST

AN

DA

RD

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HF

PR

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PR

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TA

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AR

D_M

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F

ST

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DA

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C

o

4

C04

9347

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DA

TA

TP

0530

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X

J055

1-26

J050

1-13

J040

1-6

CLK

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1-6

J045

1-8

J055

1-34

470p

F

82pF

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71

C04

22

0.1u

FC

0593

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820

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810

R04

6810

0K

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4347

0pF

J055

1-17

NU

J055

1-30

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7447

0pF

J050

1-9

470p

F

CN

TLV

LTG

J045

1-9

C04

91

100K

R05

93

VR

0504

J045

1-13

C05

1547

0pF

DA

TA

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0347

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SU

PV

LTG

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TR

L_1

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1-6

J040

1-2

VR

0503

TP

0492

TP

0497

R05

3722

0

J045

1-15

470p

F

INT

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B

NU

C05

58

10R

0409

J045

1-2

LOC

K

RS

SI

MO

SB

IAS

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NT

LR_1

MO

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IAS

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470p

FC

0508

J050

1-10

C04

90

9V3

470p

F

J055

1-35

J045

1-14

J055

1-1

J055

1-28

C04

9247

0pF

R05

351K

J050

1-19

470p

F

J055

1-5

C04

30

C04

9647

0pF

470p

FC

0486

470p

FC

0499

RE

SE

T_C

NT

LR_1

CS

X_C

NT

LR_2

C04

7647

0pF

J055

1-33

C04

8247

0pF

NU

C05

7647

0pF

9

9V3_

CN

TLR

_1

C05

54

J045

1-3

NU

0.1u

F

J055

1-24

NO

ISE

_BLN

KR

INT

_SW

B_C

NT

LR_1

10R

0467

J055

1-9

J050

1-7

470p

FC

0427

J055

1-2

J055

1-16

C04

7047

0pF

R05

4127

K

470p

FC

0502

J050

1-18

470p

FC

0504

0

R05

09

470

R05

08

J055

1-7

16_8

MH

Z

J055

1-38

CS

X

8

C04

2882

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C04

4847

0pF

C04

4547

0pF

470p

FC

0446

GP

4_IN

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T_A

CC

8O

PT

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RD

YO

PT

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T

EX

P2_

CS

EX

P_B

D_R

EQ

5VD

SP

KR

-S

PK

R+

ON

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F_C

ON

TR

OL

BU

S+

BU

S+

GP

6_IN

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C10

GP

5_IN

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C9

GP

2_O

UT

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C4

GP

7_IN

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T_A

CC

12

GP

8_IN

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T_A

CC

14

SP

KR

+

GP

3_IN

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C6

GP

4_IN

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T_A

CC

8

EX

P2_

CS

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

6_IN

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C10

GP

6_IN

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C10

GP

6_IN

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C10

GP

1_IN

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C3

FLT

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CH

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T

GP

1_IN

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C3

SP

I_D

AT

AS

PI_

MIS

OS

PI_

CLK

EX

P1_

CS

9V3

SP

I_M

ISO

DIS

CA

UD

IO

MO

DIN

CH

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5VD

9V3

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IN_A

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3

SP

I_C

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PI_

DA

TA

SP

KR

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XT

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GP

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C3

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INT

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KR

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PK

R+

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CA

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CA

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DS

ET

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HA

ND

SE

T_A

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IO

RS

SI

RS

SI

BO

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TR

L

5VD

IN_5

V_R

F_R

EG

BU

S+

GP

1_IN

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C3

GP

1_IN

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C3

INT

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B+

GP

4_IN

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T_A

CC

8E

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1_C

S

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

EX

P_B

D_R

EQ

GP

1_IN

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C3

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TC

H_A

CT

CH

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TD

ISC

AU

DIO

FLT

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SC

I_T

X

RX

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T_F

ILT

ER

ED

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EM

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GE

NC

Y_C

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TR

OL

RS

SI

EX

T_S

WB

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RD

YR

DY

RD

Y

OP

T_P

TT

OP

T_P

TT

OP

T_P

TT

NO

ISE

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KR

MO

SB

IAS

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PA

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R_S

ET

EX

P1_

CS

9V3

FLA

T_T

X_R

TN

FLA

T_T

X_R

TN

GP

4_IN

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T_A

CC

8G

P4_

IN_O

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C8

DIS

CA

UD

IO

SP

I(0:

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MO

SB

IAS

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X_R

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5VD

FLT

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BU

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BU

S+

RE

SE

TR

ES

ET

ON

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F_C

ON

TR

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ON

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TR

OL

16_8

MH

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5V_R

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5VD

5VD

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SP

I_D

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SP

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SP

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T_C

SR

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T_M

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KR

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R-

RE

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T

PA

SU

PV

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MP

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NS

E

CN

TLV

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K

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SP

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A

TX

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LK

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X_S

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RX

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D_R

TN

UR

X_S

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TX

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D_S

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5VD

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TR

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HA

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4

0.1u

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0251

C02

550.

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1

1

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CA

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VDDRC45

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27

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TX

RT

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10

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MICEXT48

MICINT46

MOD40

NC

26

PLC

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PLC

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225

GCB5RXSND

AUXTNRXRTN

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GN

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0

31 30

GNDRC47

GNDSYN23

HSIO 19

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DATA22

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GCB0 15GCB1 14GCB2 13

GC

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35

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CHACT 16

CLK21

CLK

168

34

CSX 20

DA

CG

6D

AC

R54

DA

CU

63A

53U

0221

AUDIO414243

R02

06

10K

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05

2200

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U

0.1u

FC

0266

NU

C02

67

C02

31

1uF

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6 57

4 11

11

Y1

1

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Z0

5 3Z

1

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11-2

MC

3403

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VCC16

VEE7

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X0

12

X1

13

Y15

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2

U02

51

11A B

10

C9

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6

R02

08

2.2K

6

MC

1405

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NU

C02

110.

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NU

9

R02

6624

K

C02

24

100p

F

C02

37

2.2u

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U

47K

R02

67

10K

R02

68

10uF

C02

02

10uF

C02

12

0.1u

F

C02

25

C02

7547

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24K

R02

73

10uF

C02

01

23

8

NU

8.2K

R02

258.

2KR

0224

100p

FC

0243

R02

42 0.1u

F

NU

0

1214

4 11

C02

42

U02

11-4

MC

3403

13

560

C02

44

R02

04

C02

35

0.1u

F

C02

71

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F

47K

R02

41.0

1uF

100p

FC

0256

C02

46

R02

56

100K

10K

R02

5410

K

R02

55

0.1u

FC

0241

TP

0221

57R

01E

0272

8.2K

R02

20

NU

C02

45

0.1u

F

100

R02

03

C02

33

0.22

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U

15K

1000

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76

7VCC

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76

GND1

GND25

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8M

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1

6O

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2R

R3

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A15

19C

U02

71

2

10K

R02

61

0.1u

FC

0274

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C02

32

0.1u

F

R02

271M

EG

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9 108

4 11U

0211

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C34

03

5

0.1u

FC

0222

100K

R02

53

100p

FC

0253

NU

1uF

C02

52

7

C02

9110

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C02

90

10uF

NUR

0207

2.2K

R02

261M

EG

0.1u

F NU

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C02

27

C02

9210

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C02

93

C02

21

0.1u

F

0.1u

F

R02

52C

0223

56K

30K

R02

23

0.1u

F

C02

61

R02

12

R02

11

7.5K

C02

36

7.5K

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R02

6524

K

C02

65

0.1u

F

NU

5 3

1 2

4

D02

01

0.1u

FC

0254

C02

34

7

0.1u

F

TP

0222

C02

7333

00pF

47K

R02

51

2.2K

R02

57

C02

284.

7uF

10K

Q02

71

R02

75

R02

28

C02

72

0

0.1u

F

560

R02

02

C02

62

R02

22

82pF

24K

0.1u

F

C02

26

470

NU

R02

69

2200

pF

C02

03

10R

0229

0.1u

F

C02

04 R02

21

24K

270K

R02

62

C02

7710

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U02

11-1

MC

3403

2 31

4 11

57R

01E

0271

R02

74

NU

10K

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01

R02

05

100

5V_R

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TX

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DIS

CA

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IO

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RX

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TN

10K

9V3

9V3

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B+

CH

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T

VA

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9V3

9V3

9V3

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16_8

MH

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IC

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SP

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NO

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10

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51

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62

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72

LM29

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61

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RE

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63

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1.2K

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21

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22

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41

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61

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1156

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57R

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F

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1-3

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60

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52

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21

10

24K

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41

MC

3346

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T

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54

DC

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emat

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ts L

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0 dB

m

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3.10

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2.25

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5.94

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7.50

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1.10

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6.40

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0

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15

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12

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39

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z)

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rm

s

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5 V

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14

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7

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7

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0

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13

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3

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6

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3

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VS

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7

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7

MC

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12

11

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28

0.1u

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6

CN

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89

14 VD

D

7

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S

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3

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17

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43

14 VD

D

7

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330

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38

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MC

74H

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66

5

CN

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0.

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16

BW

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LEC

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P

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51

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23

33pF

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D

14

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7

2KR11

18

MC

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13

12

C11

4547

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SI

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FC

1143

5V

5V

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EA

MP

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ge

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3 -

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hee

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of

2 (f

or

PC

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ard

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4869

08Z

02)

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d PC

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emat

ics

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ts L

ists

G

G

G

G

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m

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0 dB

m

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dBm

-34

dBm

3.10

V

2.25

V

5.94

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7.50

V

1.10

V

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06

5.6u

H

0.1u

F

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13

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04

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4.3K

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H

8G

ND

4

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5

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6

11G

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7

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3

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1

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FIL

TE

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ISE

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01 51

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ard

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08Z

04)

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atic

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ts4-

41

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G

G

G

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rm

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7

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12

CN

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7

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8

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5

3

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S

7

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0

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BW

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13

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4OSCIN

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10QUADIN

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5RSSIOUT

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VC

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14LIMIN

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616

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8AUDIOOUT

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12

1110

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D

14

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S

7

DIS

CA

UD

IO

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74H

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39.0

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CF

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3

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05

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D

R11

26

0F

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TP

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25

0

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01

2

3

1

1

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2

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D

R11

27

0

FL1

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CF

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3

GND1

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06

1.2K

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41

390

R11

40

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07

14

VS

S

7

RS

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89

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D

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ge

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2 (f

or

PC

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ard

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8620

6B08

, 848

6207

B07

& 8

4869

08Z

04)

4-42

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ics

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ts L

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NO

ISE

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KR

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H

0.1u

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1632

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47K

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02

51

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5

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26

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4

9V3_

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13

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1.5K

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30

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07

750K

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17

TP

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07

5.6K

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29

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04

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14

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06

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2VCC

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5A

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16

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11

OU

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NO

ISE

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1350

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01

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20

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111K

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34

NO

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KR

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2

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NO

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100

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12

6.2K

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10

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MH

z) -

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ise

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Low

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atic

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PLA

CE

DC

0103

NO

T P

LAC

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C01

04N

OT

PLA

CE

DC

0105

NO

T P

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C01

06N

OT

PLA

CE

DC

0107

2113

741F

25C

AP,

100

0pF

C01

11N

OT

PLA

CE

DC

0112

2113

743E

20C

AP,

0.1

uFC

0121

2113

743E

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AP,

0.1

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0122

2113

743E

20C

AP,

0.1

uFC

0123

NO

T P

LAC

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C01

3121

1374

0F35

CA

P, 2

2pF

C01

3221

1374

0F35

CA

P, 2

2pF

C01

4121

1374

3E20

CA

P, 0

.1uF

C01

5121

1374

1F49

CA

P, .0

1uF

C02

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1104

9A57

CA

PP,

10u

FC

0202

2311

049A

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P, 1

0uF

C02

03N

OT

PLA

CE

DC

0204

2113

743E

20C

AP,

0.1

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0205

NO

T P

LAC

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C02

11N

OT

PLA

CE

DC

0212

2311

049A

57C

AP

P, 1

0uF

C02

2121

1374

3E20

CA

P, 0

.1uF

C02

2221

1374

3E20

CA

P, 0

.1uF

C02

2321

1374

3E20

CA

P, 0

.1uF

C02

2421

1374

0F51

CA

P, 1

00pF

C02

2521

1374

3E20

CA

P, 0

.1uF

C02

2621

1374

3E20

CA

P, 0

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C02

27N

OT

PLA

CE

DC

0228

2311

049A

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P, 4

.7uF

C02

3121

1374

3B29

CA

P, 1

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0232

2113

743E

20C

AP,

0.1

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0233

NO

T P

LAC

ED

C02

3421

1374

3E20

CA

P, 0

.1uF

C02

3521

1374

3E07

CA

P, .0

22uF

C02

3621

1374

1F49

CA

P, .0

1uF

C02

37N

OT

PLA

CE

DC

0241

2113

743E

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AP,

0.1

uFC

0242

NO

T P

LAC

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C02

4321

1374

0F51

CA

P, 1

00pF

C02

4421

1374

3E20

CA

P, 0

.1uF

C02

4521

1374

3E20

CA

P, 0

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C02

4621

1374

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CA

P, .0

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0251

2113

743E

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AP,

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0252

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P, 1

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NO

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C02

5421

1374

3E20

CA

P, 0

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C02

5521

1374

3E20

CA

P, 0

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C02

5621

1374

0F51

CA

P, 1

00pF

C02

6121

1374

3E20

CA

P, 0

.1uF

C02

6221

1374

0F49

CA

P, 8

2pF

C02

6521

1374

3E20

CA

P, 0

.1uF

C02

66N

OT

PLA

CE

DC

0267

2113

741F

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AP,

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FC

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2113

741F

49C

AP,

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FC

0272

2113

743E

20C

AP,

0.1

uFC

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2113

741F

37C

AP,

3300

pFC

0274

NO

T P

LAC

ED

C02

7523

1104

9A99

CA

PP,

47uF

C02

7621

1374

1F25

CA

P, 1

000p

FC

0277

2113

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AP,

100

0pF

C02

9023

1104

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CA

PP,

10u

FC

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049C

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AP

P, 1

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C02

9223

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9C01

CA

PP,

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FC

0293

2311

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01C

AP

P, 1

0uF

C04

01N

OT

PLA

CE

DC

0402

NO

T P

LAC

ED

C04

03N

OT

PLA

CE

DC

0406

NO

T P

LAC

ED

C04

07N

OT

PLA

CE

DC

0408

NO

T P

LAC

ED

C04

09N

OT

PLA

CE

DC

0410

NO

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LAC

ED

C04

11N

OT

PLA

CE

DC

0421

2113

743N

48C

AP,

82p

FC

0422

2113

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17C

AP,

470

pFC

0423

2113

741F

17C

AP,

470

pFC

0426

2113

743L

09C

AP,

470

pFC

0427

2113

743L

09C

AP,

470

pFC

0428

2113

743N

48C

AP,

82p

FC

0429

2113

743L

09C

AP,

470

pFC

0430

2113

741F

17C

AP,

470

pFC

0431

2113

741F

17C

AP,

470

pFC

0441

2113

743L

09C

AP,

470

pFC

0442

2113

743L

09C

AP,

470

pFC

0443

NO

T P

LAC

ED

C04

4521

1374

3L09

CA

P, 4

70pF

C04

4621

1374

3L09

CA

P, 4

70pF

C04

4721

1374

3L09

CA

P, 4

70pF

C04

4821

1374

3L09

CA

P, 4

70pF

C04

4921

1374

3L09

CA

P, 4

70pF

C04

51N

OT

PLA

CE

DC

0452

NO

T P

LAC

ED

C04

53N

OT

PLA

CE

DC

0455

NO

T P

LAC

ED

C04

56N

OT

PLA

CE

DC

0457

NO

T P

LAC

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C04

58N

OT

PLA

CE

DC

0459

NO

T P

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Cir

cuit

R

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P

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No

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C04

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OT

PLA

CE

DC

0461

NO

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LAC

ED

C04

62N

OT

PLA

CE

DC

0463

NO

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LAC

ED

C04

64N

OT

PLA

CE

DC

0466

NO

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LAC

ED

C04

67N

OT

PLA

CE

DC

0468

NO

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LAC

ED

C04

7021

1374

3L09

CA

P, 4

70pF

C04

7121

1374

3N48

CA

P, 8

2pF

C04

7221

1374

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CA

P, 8

2pF

C04

7321

1374

3N48

CA

P, 8

2pF

C04

7421

1374

3L09

CA

P, 4

70pF

C04

7621

1374

3L09

CA

P, 4

70pF

C04

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1374

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CA

P, 4

70pF

C04

7821

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CA

P, 4

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C04

8221

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CA

P, 4

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C04

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CA

P, 4

70pF

C04

8421

1374

1F17

CA

P, 4

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C04

8521

1374

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CA

P, 4

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C04

8621

1374

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CA

P, 4

70pF

C04

8721

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CA

P, 4

70pF

C04

8821

1374

3L09

CA

P, 4

70pF

C04

9021

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CA

P, 4

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9121

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CA

P, 4

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CA

P, 4

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P, 4

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C04

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P, 4

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CA

P, 4

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CA

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P, 4

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CA

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CA

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1321

1374

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CA

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C05

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CA

P, 4

70pF

C05

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1374

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P, 4

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1621

1374

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CA

P, .0

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1721

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CA

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CA

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PLA

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PLA

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0576

NO

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PLA

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CA

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220

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FC

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2113

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AP,

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pFC

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pFC

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AP,

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1011

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AP,

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220

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pFC

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Ban

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CA

P, .0

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CA

P, 0

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C10

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3E20

CA

P, 0

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C10

3221

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CA

P, 1

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C10

3321

1374

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CA

P, 1

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C10

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0F54

CA

P, 1

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C10

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CA

P, 9

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C10

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CA

P, 0

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C10

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CA

P, 3

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CA

P, 3

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CA

P, 3

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C10

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CA

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CA

P, 2

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CA

P, 2

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CA

P, 1

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CA

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CA

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CA

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CA

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CA

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CA

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PLA

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PLA

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PLA

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PLA

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PLA

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P, .0

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P, .0

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OT

PLA

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1422

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9M17

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, 27u

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306

2480

289M

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R, 2

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724

8028

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TR

, 27u

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309

2480

289M

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R, 2

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6258

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TR

, 390

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311

2480

289M

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R, 2

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324

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TR

, 491

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314

2480

289M

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R, 3

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524

6258

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, 1.2

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316

2480

289M

18ID

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R, 3

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, 33u

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318

2480

289M

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6258

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322

2480

289M

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424

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7A82

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R13

1906

6205

7A01

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1320

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R13

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PLA

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1326

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2706

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1333

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7A47

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27R

ES

, 120

R13

3906

6205

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1340

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ES

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4106

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7A25

RE

S, 1

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1342

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ES

, 100

R13

4306

6205

7C55

RE

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1344

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ES

, 1K

R13

4506

6205

7A25

RE

S, 1

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1346

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ES

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R13

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6205

7C55

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1376

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1402

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R14

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R14

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, 130

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1414

0680

194M

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PLA

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escr

ipti

on

C05

1421

1374

3L09

470p

FC

0515

2113

743L

0947

0pF

C

0516

2113

741F

4910

nFC

0517

2113

743N

4882

pFC

0518

2113

743L

0947

0 P

F

C05

4123

1104

9A05

470n

F

C05

4223

1104

9A99

47uF

C05

9121

1374

3E20

100n

FC

0592

2113

743E

2010

0nF

C05

9321

1374

1B69

100n

F

C06

0121

1374

1F17

470p

FC

0603

2380

090M

2410

uFC

0611

2311

049C

0622

uF

C06

1221

1374

3E20

100n

FC

0622

2311

049A

9947

uFC

0641

2113

741F

1747

0pF

C

0644

2311

049A

9733

uF

C06

4521

1374

3E20

100n

FC

0652

2311

049A

9733

uF

C06

5423

1104

9A57

10uF

C06

5521

1374

3E20

100n

FC

0661

2311

049C

0547

uFC

0662

2113

741F

4910

nFC

0663

2113

743E

2010

0nF

C

0671

2113

743E

2010

0nF

C

0681

2113

743E

2010

0nF

C10

0121

1374

0F56

CA

P, 1

60pF

C10

0221

1374

1F49

CA

P, .0

1uF

C10

0321

1374

0F62

CA

P, 3

00pF

C10

0421

1374

0F53

CA

P, 1

20pF

C10

0621

1374

0F46

CA

P, 6

2pF

C10

0721

1374

0F60

CA

P, 2

40pF

C10

0821

1374

1F25

CA

P, 1

000p

FC

1009

2113

740F

60C

AP,

240

pFC

1010

2113

740F

46C

AP,

62p

FC

1011

2113

740F

53C

AP,

120

pFC

1012

2113

740F

62C

AP,

300

pFC

1013

2113

741F

49C

AP,

.01u

FC

1014

2113

740F

56C

AP,

160

pF"

C10

1521

1374

1F49

CA

P, .0

1uF

C10

1621

1374

0F55

CA

P, 1

50pF

C10

1721

1374

1F27

CA

P, 1

200p

FC

1019

2113

740F

60C

AP,

240

pFC

1020

2113

740F

59C

AP,

220

pFC

1021

2113

740F

62C

AP,

300

pFC

1022

2113

740F

58C

AP,

200

pFC

1023

2113

740F

62C

AP,

300

pFC

1024

2113

740F

59C

AP,

220

pFC

1025

2113

740F

60C

AP,

240

pFC

1026

2113

741F

27C

AP,

120

0pF

C10

2721

1374

0F55

CA

P, 1

50pF

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

C10

2821

1374

1F49

CA

P, .0

1uF

C10

2921

1374

1F49

CA

P, .0

1uF

C10

3021

1374

3E20

CA

P, 0

.1uF

C10

3121

1374

3E20

CA

P, 0

.1uF

C10

3221

1374

0F48

CA

P, 7

5pF

C10

3321

1374

0F50

CA

P, 9

1pF

C10

3421

1374

0F51

CA

P, 1

00pF

C10

3521

1374

0F46

CA

P, 6

2pF

C10

3621

1374

3E20

CA

P, 0

.1uF

C10

3721

1374

0F59

CA

P, 2

20pF

C10

3821

1374

0F62

CA

P, 3

00pF

C10

3921

1374

0F62

CA

P, 3

00pF

C10

4021

1374

0F59

CA

P, 2

20pF

C11

0121

1374

0F53

CA

P, 1

20pF

C11

0221

1374

0F50

CA

P, 9

1pF

C11

0321

1374

0F58

CA

P, 2

00pF

C11

0421

1374

3E20

CA

P, 0

.1uF

C11

0521

1374

3E20

CA

P, 0

.1uF

C11

0621

1374

3E20

CA

P, 0

.1uF

C11

0721

1374

0F49

CA

P, 8

2pF

C11

0821

1374

3E20

CA

P, 0

.1uF

C11

0921

1374

0F40

CA

P, 3

6pF

C11

10N

OT

PLA

CE

DC

1111

2113

740L

03C

AP,

2.4

pFC

1112

2113

740F

40C

AP,

36p

FC

1113

2113

743E

20C

AP,

0.1

uFC

1114

2113

743E

20C

AP,

0.1

uFC

1115

2113

740F

53C

AP,

120

pFC

1116

2113

740F

41C

AP,

39p

FC

1119

2113

743E

20C

AP,

0.1

uFC

1120

NO

T P

LAC

ED

C11

21N

OT

PLA

CE

DC

1122

NO

T P

LAC

ED

C11

2321

1374

0F39

CA

P, 3

3pF

C11

2421

1374

3E20

CA

P, 0

.1uF

C11

2521

1374

3E11

CA

P, .0

39uF

C11

2621

1374

3E20

CA

P, 0

.1uF

C11

2723

1104

9A57

CA

P, 1

0uF

C11

2821

1374

3E20

CA

P, 0

.1uF

C11

2921

1374

0F35

CA

P, 2

2pF

C11

3021

1374

0F47

CA

P, 6

8pF

C11

31N

OT

PLA

CE

DC

1133

2113

743E

20C

AP,

0.1

uFC

1134

2113

743E

20C

AP,

0.1

uFC

1135

2113

743E

20C

AP,

0.1

uFC

1136

2113

743E

20C

AP,

0.1

uFC

1137

2113

740F

53C

AP,

120

pFC

1138

2113

743E

20C

AP,

0.1

uFC

1139

2113

741F

49C

AP,

.01u

FC

1140

2113

741F

49C

AP,

.01u

FC

1141

2113

743E

20C

AP,

0.1

uF

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

4-50

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

C11

4221

1374

3E20

CA

P, 0

.1uF

C11

4321

1374

3E20

CA

P, 0

.1uF

C11

4421

1374

3E20

CA

P, 0

.1uF

C11

4521

1374

1F41

CA

P, 4

700p

FC

1146

2113

740F

49C

AP,

82p

FC

1147

2113

740F

65C

AP,

390

pFC

1148

2113

743E

20C

AP,

0.1

uFC

1149

2113

740F

53C

AP,

120

pFC

1150

2113

740F

54C

AP,

130

pFC

1151

NO

T P

LAC

ED

C11

52N

OT

PLA

CE

DC

1153

NO

T P

LAC

ED

C12

0121

1374

3E20

CA

P, 0

.1uF

C12

0223

1104

9J11

CA

P, 4

.7uF

C12

0321

1374

1F49

CA

P, .0

1uF

C12

0421

1374

0F59

CA

P, 2

20pF

C12

05N

OT

PLA

CE

DC

1206

2113

740L

37C

AP,

62p

FC

1207

2113

740F

07C

AP,

1.5

pFC

1208

2113

740A

82C

AP,

150

0pF

C12

0923

1104

9A57

CA

P, 1

0uF

C12

1021

1374

3E20

CA

P, 0

.1uF

C12

1121

1374

1F49

CA

P, .0

1uF

C12

1223

1104

9A07

CA

P, 1

uFC

1213

2113

743A

23C

AP,

0.2

2uF

C12

1421

1374

3E10

CA

P, .0

33uF

C12

1521

1374

0C37

CA

P, 6

800p

FC

1216

2311

049J

11C

AP,

4.7

uFC

1217

2113

741F

49C

AP,

.01u

FC

1218

2113

743E

20C

AP,

0.1

uFC

1219

2311

049J

11C

AP,

4.7

uFC

1220

2311

049J

11C

AP,

4.7

uFC

1221

NO

T P

LAC

ED

C12

2221

1374

0F36

CA

P, 2

4pF

C12

2321

1374

1F49

CA

P, .0

1uF

C12

2421

1374

0F49

CA

P, 8

2pF

C12

2521

1374

1F49

CA

P, .0

1uF

C12

26N

OT

PLA

CE

DC

1227

2113

741F

49C

AP,

.01u

FC

1228

NO

T P

LAC

ED

C12

2921

1374

1F49

CA

P, .0

1uF

C12

3021

1374

1F49

CA

P, .0

1uF

C12

3121

1374

1F49

CA

P, .0

1uF

C12

32N

OT

PLA

CE

DC

1233

NO

T P

LAC

ED

C12

34N

OT

PLA

CE

DC

1250

2311

049A

09C

AP,

2.2

uFC

1251

2113

743E

20C

AP,

0.1

uFC

1252

2113

743E

05C

AP,

.018

uFC

1253

2311

049J

11C

AP,

4.7

uFC

1254

2113

741F

49C

AP,

.01u

F

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

C13

04N

OT

PLA

CE

DC

1305

NO

T P

LAC

ED

C13

0621

1374

0L23

CA

P, 1

6pF

C13

0721

1374

0L27

CA

P, 2

4pF

C13

0821

1374

0F19

CA

P, 4

.7pF

C13

09N

OT

PLA

CE

DC

1311

2113

741F

49C

AP,

.01u

FC

1312

2113

741F

49C

AP,

.01u

FC

1313

2113

741F

49C

AP,

.01u

FC

1314

2113

740L

27C

AP,

24p

FC

1315

2113

740L

27C

AP,

24p

FC

1316

2113

740F

15C

AP,

3.3

pFC

1317

2113

743E

20C

AP,

0.1

uFC

1318

2113

741F

49C

AP,

.01u

FC

1319

2113

741F

49C

AP,

.01u

FC

1320

2113

741F

49C

AP,

.01u

FC

1321

2113

740F

17C

AP,

3.9

pFC

1323

2113

740L

21C

AP,

13p

FC

1325

2113

741F

49C

AP,

.01u

FC

1326

2113

741F

49C

AP,

.01u

FC

1333

2113

740L

28C

AP,

27p

FC

1334

2113

740L

36C

AP,

56p

FC

1335

2113

740F

19C

AP,

4.7

pFC

1336

2113

743E

20C

AP,

0.1

uFC

1337

NO

T P

LAC

ED

C13

3821

1374

1F49

CA

P, .0

1uF

C13

3921

1374

1F49

CA

P, .0

1uF

C13

4021

1374

1F49

CA

P, .0

1uF

C13

4121

1374

0L36

CA

P, 5

6pF

C13

4221

1374

0L36

CA

P, 5

6pF

C13

4321

1374

0F15

CA

P, 3

.3pF

C13

4421

1374

1F49

CA

P, .0

1uF

C13

4521

1374

3E20

CA

P, 0

.1uF

C13

4621

1374

1F49

CA

P, .0

1uF

C13

4721

1374

1F49

CA

P, .0

1uF

C13

4821

1374

0F17

CA

P, 3

.9pF

C13

4921

1374

3E20

CA

P, 0

.1uF

C13

5021

1374

0F31

CA

P, 1

5pF

C13

5121

1374

1F49

CA

P, .0

1uF

C13

5221

1374

1F49

CA

P, .0

1uF

C13

54N

OT

PLA

CE

DC

1356

NO

T P

LAC

ED

C13

60N

OT

PLA

CE

DC

1361

NO

T P

LAC

ED

C13

62N

OT

PLA

CE

DC

1401

2113

741A

45C

AP,

.01u

FC

1402

2113

741A

45C

AP,

.01u

FC

1403

NO

T P

LAC

ED

C14

0421

1374

1A45

CA

P, .0

1uF

C14

0521

1374

1A45

CA

P, .0

1uF

C14

06N

OT

PLA

CE

D

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

C14

0721

1374

1A45

CA

P, .0

1uF

C14

08N

OT

PLA

CE

DC

1409

NO

T P

LAC

ED

C14

1021

1374

1M69

CA

P, 0

.1uF

C14

1221

1374

1A45

CA

P, .0

1uF

C14

1321

1374

1A45

CA

P, .0

1uF

C14

1421

1374

1A45

CA

P, .0

1uF

C14

1521

1374

1M69

CA

P, 0

.1uF

C14

16N

OT

PLA

CE

DC

1417

NO

T P

LAC

ED

C14

1821

1374

0A73

CA

P, 5

60pF

C14

1921

1374

1A45

CA

P, .0

1uF

C14

2021

1374

1A45

CA

P, .0

1uF

C14

21N

OT

PLA

CE

DC

1422

NO

T P

LAC

ED

C14

2321

1374

1A45

CA

P, .0

1uF

C14

2421

1374

1A45

CA

P, .0

1uF

C14

2521

1374

1W01

CA

P, 1

uFC

1426

2113

741W

01C

AP,

1uF

C14

2721

1107

8B59

CA

P, 4

70pF

C14

2821

1107

8B59

CA

P, 4

70pF

C14

2921

1107

8B58

CA

P, 4

30pF

C14

3021

1107

8B58

CA

P, 4

30pF

C14

3121

1374

1A45

CA

P, .0

1uF

C14

3221

1374

1W01

CA

P, 1

uFC

1433

2113

741W

01C

AP,

1uF

C14

3421

1374

1A45

CA

P, .0

1uF

C14

3521

1374

1W01

CA

P, 1

uFC

1436

2113

741A

45C

AP,

.01u

FC

1437

2111

078B

58C

AP,

430

pFC

1438

2111

078B

58C

AP,

430

pFC

1439

2111

078B

59C

AP,

470

pFC

1440

2111

078B

59C

AP,

470

pFC

1441

2111

078B

52C

AP,

240

pFC

1442

2111

078B

45C

AP,

130

pFC

1443

2111

078B

59C

AP,

470

pFC

1444

2111

078B

59C

AP,

470

pFC

1445

2113

741A

45C

AP,

.01u

FC

1446

NO

T P

LAC

ED

C14

4721

1107

8B52

CA

P, 2

40pF

C14

4821

1107

8B52

CA

P, 2

40pF

C14

4921

8006

0M49

CA

P, 1

80pF

C14

50N

OT

PLA

CE

DC

1451

2180

060M

49C

AP,

180

pFC

1452

2180

060M

29C

AP,

27p

FC

1453

2180

060M

42C

AP,

91p

FC

1454

2180

060M

38C

AP,

62p

FC

1455

2180

060M

30C

AP,

30p

FC

1456

2180

060M

40C

AP,

75p

FC

1457

2113

741A

45C

AP,

.01u

FC

1458

2311

049C

01C

AP,

10u

F

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

C14

5923

1104

9C01

CA

P, 1

0uF

C14

6021

1374

3E20

CA

P, 0

.1uF

C14

6121

1374

1A45

CA

P, .0

1uF

C14

6223

1104

9C01

CA

P, 1

0uF

C14

6321

1392

8E01

CA

P, 1

uFC

1464

2113

741A

45C

AP,

.01u

FC

1465

2113

928E

01C

AP,

1uF

C14

6621

1374

1A45

CA

P, .0

1uF

C14

6721

1374

0A46

CA

P, 4

7pF

C14

6821

1374

1A45

CA

P, .0

1uF

C14

6921

1374

1W01

CA

P, 1

uFC

1470

2113

741W

01C

AP,

1uF

C14

7121

1374

1A45

CA

P, .0

1uF

C14

7221

1374

1M69

CA

P, 0

.1uF

C14

7321

1374

1M69

CA

P, 0

.1uF

C14

7421

1374

1A45

CA

P, .0

1uF

C14

7521

1374

1W01

CA

P, 1

uFC

1476

2113

741A

45C

AP,

.01u

FC

1477

2111

078B

42C

AP,

100

pFC

1478

2111

078B

42C

AP,

100

pFC

1479

2111

078B

52C

AP,

240

pFC

1480

2111

078B

54C

AP,

300

pFC

1481

2111

078B

54C

AP,

300

pFC

1482

2113

928E

01C

AP,

1uF

C14

8421

1374

1F33

CA

P, 2

200p

FC

1485

2113

741A

45C

AP,

.01u

FC

1501

2113

741F

33C

AP,

220

0pF

C15

0221

1374

1F33

CA

P, 2

200p

FC

1503

2113

741F

33C

AP,

220

0pF

C15

0421

1374

1F33

CA

P, 2

200p

FC

1505

2113

741F

25C

AP,

1nF

C15

0621

1374

1F25

CA

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0662

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8224

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0592

0662

057A

0110

R05

9306

6205

7A97

100K

R06

1106

6205

7A91

56K

R06

1206

6205

7A65

4.7K

R06

2106

6205

7A82

24K

R06

4106

6205

7A73

10K

R06

4206

6007

6E70

7.5K

R06

4306

6007

6E51

1.2K

R06

5106

6205

7A01

10R

0652

0662

057A

0110

R

0661

0662

057A

491K

R06

6206

6205

7B02

150K

R06

7106

6205

7A84

30K

R06

7206

6205

7A73

10K

R06

8106

6205

7A79

18K

R06

8206

6205

7A93

68K

R10

0106

6205

7A05

RE

S, 1

5R

1002

0662

057A

05R

ES

, 15

R10

0306

6205

7A41

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S, 4

70R

1004

0662

057A

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ES

, 2.7

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1005

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cuit

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R10

0606

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1007

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057A

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, 8.2

KR

1008

0662

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65R

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, 4.7

KR

1009

NO

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LAC

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R10

10N

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PLA

CE

DR

1011

NO

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ED

R11

0106

6205

7A18

RE

S, 5

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1102

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, 16K

R11

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6205

7A39

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S, 3

90R

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1106

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, 100

R11

0706

6205

7A68

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S, 6

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0806

6205

7A61

RE

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R11

0906

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1110

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R11

1106

6205

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RE

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1113

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64R

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, 4.3

KR

1114

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057A

64R

ES

, 4.3

KR

1115

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057A

75R

ES

, 12K

R11

16N

OT

PLA

CE

DR

1117

0662

057A

37R

ES

, 330

R11

1806

6205

7A56

RE

S, 2

KR

1119

0662

057A

83R

ES

, 27K

R11

2006

6205

7A18

RE

S, 5

1R

1121

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057A

71R

ES

, 8.2

KR

1122

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057A

73R

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, 10K

R11

2306

6205

7A51

RE

S, 1

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R11

24N

OT

PLA

CE

DR

1125

NO

T P

LAC

ED

R11

26N

OT

PLA

CE

DR

1127

NO

T P

LAC

ED

R11

2806

6205

7A73

RE

S, 1

0KR

1129

0662

057A

73R

ES

, 10K

R11

3006

6205

7A73

RE

S, 1

0KR

1131

0662

057A

77R

ES

, 15K

R11

3206

6205

7A58

RE

S, 2

.4K

R11

3306

6205

7A61

RE

S, 3

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R11

3406

6205

7A05

RE

S, 1

5R

1135

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057A

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ES

, 62

R11

3606

6205

7A45

RE

S, 6

80R

1137

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057A

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, 12K

R11

3806

6205

7A01

RE

S, 1

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1139

0611

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ES

, 2.7

R12

0106

6205

7B47

RE

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PLA

CE

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1203

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, 150

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1204

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, 0R

1205

0662

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, 680

R12

0606

6205

7A41

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S, 4

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1207

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R12

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6205

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R12

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R12

1306

6205

7A45

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R12

1606

6205

7A18

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R12

1806

6205

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1219

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, 47

R12

2006

6205

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RE

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1221

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1222

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6205

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R13

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6205

7A41

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S, 4

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7A51

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R13

1306

6205

7A51

RE

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6205

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1706

6205

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3806

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Low

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s / S

chem

atic

s / P

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ts4-

53

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orol

a D

epot

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vici

ng o

nly

Ref

eren

ce d

esig

nato

rs w

ith

an a

ster

isk

indi

cate

com

pone

nts

whi

ch a

re n

ot f

ield

rep

lace

able

bec

ause

they

nee

d to

be

cali

-br

ated

wit

h sp

ecia

lize

d fa

ctor

y eq

uipm

ent a

fter

inst

alla

tion

. R

adio

s in

whi

ch th

ese

part

s ha

ve b

een

repl

aced

in th

e fi

eld

wil

l be

off

fre

quen

cy a

t tem

pera

ture

ext

rem

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2462

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, 680

R13

1706

6205

7A09

RE

S, 2

2R

1318

0662

057A

41R

ES

, 470

R13

1906

6205

7A01

RE

S, 1

0R

1320

0662

057A

41R

ES

, 470

R13

2506

6205

7B47

RE

S, 0

R13

2606

6205

7A19

RE

S, 5

6R

1327

0662

057A

19R

ES

, 56

R13

2806

6205

7A41

RE

S, 4

70R

1330

0662

057A

73R

ES

, 10K

R13

3106

6205

7A51

RE

S, 1

.2K

R13

3206

6205

7A51

RE

S, 1

.2K

R13

3306

6205

7A37

RE

S, 3

30R

1334

0662

057A

61R

ES

, 3.3

KR

1335

0662

057A

47R

ES

, 820

R13

3606

6205

7A09

RE

S, 2

2R

1337

0662

057A

22R

ES

, 75

R13

3806

6205

7A27

RE

S, 1

20R

1339

0662

057A

22R

ES

, 75

R13

4006

6205

7A49

RE

S, 1

KR

1341

0662

057A

25R

ES

, 100

R13

4206

6205

7A25

RE

S, 1

00R

1343

0662

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55R

ES

, 150

R13

4406

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RE

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Cir

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No

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R13

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6205

7A25

RE

S, 1

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1346

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ES

, 100

R13

4706

6205

7C55

RE

S, 1

50R

1376

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65R

ES

, 4.7

KR

1402

0611

079A

64R

ES

, 390

R14

0406

8019

4M18

RE

S, 5

1R

1405

0680

194M

18R

ES

, 51

R14

0606

6205

7A73

RE

S, 1

0KR

1407

0662

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73R

ES

, 10K

R14

0906

8208

9V01

RE

S, .

01R

1410

0683

962T

52R

ES

, 130

R14

1106

6205

7C99

RE

S, 1

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1412

NO

T P

LAC

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1306

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4M01

RE

S, 1

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1414

0680

194M

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ES

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R14

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PLA

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1416

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194M

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, 10

R14

1706

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4M01

RE

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194M

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ES

, 10

R14

1906

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RE

S, 1

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1420

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194M

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ES

, 10

R14

2106

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RE

S, 1

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1422

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194M

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ES

, 10

R14

2306

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4M01

RE

S, 1

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1424

0662

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10R

ES

, 27K

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2506

6205

7D10

RE

S, 2

7KR

1440

0662

057A

25R

ES

, 100

R14

41N

OT

PLA

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DR

1442

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057A

25R

ES

, 100

KR

1443

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49R

ES

, 1K

R14

4406

6205

7A33

RE

S, 2

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1445

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68R

ES

, 6.2

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1446

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7B47

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PLA

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R14

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1451

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ES

, 180

R14

5306

6205

7K31

RE

S, 1

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1454

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ES

, 180

R14

5506

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S, 1

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1457

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, 10

R14

5806

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90R

1459

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64R

ES

, 390

R14

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6R01

RE

S, 0

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1463

0662

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ES

, 12K

R14

6406

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7A61

RE

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7A61

RE

S, 3

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R14

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PLA

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R14

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S, 1

0R

1477

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61R

ES

, 3.3

KR

1478

0662

057A

73R

ES

, 10K

R14

7906

6205

7A61

RE

S, 3

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R14

8006

6205

7D10

RE

S, 2

7KR

1481

0662

057A

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ES

, 51K

R14

8206

6205

7B47

RE

S, 0

R14

8306

6205

7A34

RE

S, 2

40R

1484

0662

057A

49R

ES

, 1K

R15

0106

6205

7A45

RE

S, 6

80R

1502

0662

057C

67R

ES

, 470

R15

0306

6205

7A61

RE

S, 3

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R15

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7A73

RE

S, 1

0KR

1505

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69R

ES

, 6.8

KR

1506

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057A

87R

ES

, 39K

R15

0706

6205

7A49

RE

S, 1

KR

1508

0662

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ES

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R15

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PLA

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1512

NO

T P

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1406

6205

7A97

RE

S, 1

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R15

1506

6205

7A49

RE

S, 1

KR

1516

0662

057C

71R

ES

, 680

R15

1706

6205

7C71

RE

S, 6

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1518

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057A

61R

ES

, 3.3

KR

1519

0662

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71R

ES

, 680

R15

2206

6205

7A73

RE

S, 1

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1523

NO

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R15

2406

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7C71

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R15

2606

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7A97

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2706

6205

7A97

RE

S, 1

00K

R15

2806

6205

7A80

RE

S, 2

0KR

1532

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ES

, 82K

R15

3306

6205

7A73

RE

S, 1

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1535

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ES

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1537

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, 51K

R15

4106

6205

7A68

RE

S, 6

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R15

4206

6205

7A49

RE

S, 1

KR

1543

0662

057A

49R

ES

, 1K

R15

4406

6205

7A90

RE

S, 5

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1545

0662

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ES

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Cir

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1602

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1604

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ES

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R16

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RE

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R16

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R16

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RE

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7A73

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S, 1

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1610

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, 24K

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RE

S, 1

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1612

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R16

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1406

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ES

, 2.2

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1620

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ES

, 1.2

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1621

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, 6.2

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1622

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2606

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1627

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R16

2806

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7A55

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2906

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1632

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1012

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1019

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2113

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2113

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1027

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1030

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1333

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1335

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1354

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C13

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Not

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C13

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C14

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1uF

C14

3521

1374

1W01

CA

P, 1

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1436

2113

741A

45C

AP,

.01u

FC

1437

2111

078B

59C

AP,

470

pFC

1438

2111

078B

59C

AP,

470

pFC

1439

2111

078B

59C

AP,

470

pFC

1440

2111

078B

59C

AP,

470

pFC

1441

2111

078B

50C

AP,

200

pFC

1442

2111

078B

39C

AP,

75p

FC

1443

2111

078B

59C

AP,

470

pFC

1444

2111

078B

59C

AP,

470

pFC

1445

2113

741A

45C

AP,

.01u

FC

1446

2180

060M

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AP,

82p

FC

1447

2111

078B

59C

AP,

470

pFC

1448

2111

078B

59C

AP,

470

pFC

1449

2180

060M

46C

AP,

130

pFC

1450

Not

Pla

ced

C14

5121

8006

0M51

CA

P, 2

20pF

C14

5221

8006

0M37

CA

P, 5

6pF

C14

5321

8006

0M48

CA

P, 1

60pF

C14

5421

8006

0M37

CA

P, 5

6pF

C14

5521

8006

0M25

CA

P, 1

8pF

C14

5621

8006

0M43

CA

P, 1

00pF

C14

5721

1374

1A45

CA

P, .0

1uF

C14

5823

1104

9C01

CA

PP,

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FC

1459

2311

049C

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P, 1

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C14

6021

1374

3E20

CA

P, 0

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C14

6121

1374

1A45

CA

P, .0

1uF

C14

6223

1104

9C01

CA

PP,

10u

FC

1463

2113

928E

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AP,

1uF

C14

6421

1374

1A45

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P, .0

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6521

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No

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Ban

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1A45

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P, .0

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6721

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0A53

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P, 8

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C14

6821

1374

1A45

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P, .0

1uF

C14

6921

1374

1W01

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P, 1

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1470

2113

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C14

7121

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1A45

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P, .0

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C14

7221

1374

1M69

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P, 0

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C14

7321

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P, 0

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C14

7421

1374

1A45

CA

P, .0

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C14

7521

1374

1W01

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P, 1

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1476

2113

741A

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AP,

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1477

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pFC

1478

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AP,

470

pFC

1479

2111

078B

49C

AP,

180

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1480

Not

Pla

ced

C14

8121

1107

8B58

CA

P, 4

30pF

C14

8221

1392

8E01

CA

P, 1

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1484

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P, .0

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C15

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P, 2

200p

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1503

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220

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C15

0421

1374

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P, 2

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1505

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741F

25C

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1F25

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P, 1

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1507

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741F

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C15

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1F33

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1509

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220

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C15

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1F33

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1512

2113

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AP,

220

0pF

C15

2521

1374

3E20

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P, 0

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1374

0F51

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P, 1

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1A45

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P, .0

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2821

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1A45

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P, .0

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2921

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1M69

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P, 0

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3021

1374

1A45

CA

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31N

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Pla

ced

C16

0121

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3E20

CA

P, 0

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0221

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P, 2

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C16

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3A23

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P, 0

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1604

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0.2

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C16

0523

1104

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1606

2113

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220

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1607

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100

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1608

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1613

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1615

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Pla

ced

C16

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0F40

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P, 3

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P, 0

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Not

Pla

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C16

2221

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3E20

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P, 0

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P, 2

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P, 3

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1625

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1626

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1627

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D61

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4880

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4880

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D35

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1501

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R, 6

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L120

524

6258

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2480

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L130

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R, 2

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, 820

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2480

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R, 3

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R, 4

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R, 3

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587N

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DT

C14

4EK

AQ

1603

4880

214G

02M

MB

T39

04Q

1604

4880

214G

02M

MB

T39

04Q

1605

4880

214G

02M

MB

T39

04Q

1606

4813

824A

17M

MB

T39

06Q

1607

4880

214G

02M

MB

T39

04Q

1609

4813

824A

17M

MB

T39

06Q

1610

4805

585Q

17N

E25

139

R01

0106

6205

7A73

RE

S, 1

0KR

0102

0662

057A

65R

ES

, 4.7

KR

0103

0662

057A

01R

ES

, 10

R01

0406

6205

7A73

RE

S, 1

0K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R01

0506

6205

7A97

RE

S, 1

00K

R01

06N

ot P

lace

dR

0107

Not

Pla

ced

R01

0806

6205

7A57

RE

S, 2

.2K

R01

10N

ot P

lace

dR

0111

0662

057B

47R

ES

, 0R

0112

Not

Pla

ced

R01

1306

6205

7A73

RE

S, 1

0KR

0114

0662

057A

73R

ES

, 10K

R01

1506

6205

7A73

RE

S, 1

0KR

0116

Not

Pla

ced

R01

1706

6205

7A63

RE

S, 3

.9K

R01

2106

6205

7A97

RE

S, 1

00K

R01

3106

6205

7B46

RE

S, 1

0ME

GR

0132

0662

057B

10R

ES

, 330

KR

0151

0662

057A

82R

ES

, 24K

R01

5206

6205

7A82

RE

S, 2

4KR

0170

0662

057A

73R

ES

, 10K

R01

7106

6205

7A65

RE

S, 4

.7K

R01

7206

6205

7A73

RE

S, 1

0KR

0173

0662

057A

65R

ES

, 4.7

KR

0174

0662

057A

73R

ES

, 10K

R01

7506

6205

7A73

RE

S, 1

0KR

0176

0662

057A

84R

ES

, 30K

R01

7706

6205

7A65

RE

S, 4

.7K

R01

7806

6205

7A89

RE

S, 4

7KR

0179

0662

057A

89R

ES

, 47K

R01

8106

6205

7A65

RE

S, 4

.7K

R01

8206

6205

7A89

RE

S, 4

7KR

0183

0662

057A

65R

ES

, 4.7

KR

0184

0662

057A

89R

ES

, 47K

R01

8506

6205

7A65

RE

S, 4

.7K

R01

8606

6205

7A89

RE

S, 4

7KR

0201

0662

057A

25R

ES

, 100

R02

0206

6205

7A43

RE

S, 5

60R

0203

0662

057A

25R

ES

, 100

R02

0406

6205

7A43

RE

S, 5

60R

0205

0662

057A

73R

ES

, 10K

R02

0606

6205

7A73

RE

S, 1

0KR

0207

0662

057A

57R

ES

, 2.2

KR

0208

0662

057A

57R

ES

, 2.2

KR

0211

0660

076E

70R

ES

, 7.5

KR

0212

0660

076E

70R

ES

, 7.5

KR

0220

Not

Pla

ced

R02

2106

6205

7A82

RE

S, 2

4KR

0222

0662

057A

82R

ES

, 24K

R02

2306

6205

7A84

RE

S, 3

0KR

0224

0662

057A

71R

ES

, 8.2

KR

0225

Not

Pla

ced

R02

26N

ot P

lace

dR

0227

Not

Pla

ced

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R02

2806

6205

7B47

RE

S, 0

R02

2906

6205

7A01

RE

S, 1

0R

0241

0662

057A

89R

ES

, 47K

R02

4206

6205

7B47

RE

S, 0

R02

5106

6205

7A89

RE

S, 4

7KR

0252

0662

057A

91R

ES

, 56K

R02

5306

6205

7A97

RE

S, 1

00K

R02

5406

6205

7A73

RE

S, 1

0KR

0255

0662

057A

73R

ES

, 10K

R02

5606

6205

7A97

RE

S, 1

00K

R02

5706

6205

7A57

RE

S, 2

.2K

R02

6106

6205

7A73

RE

S, 1

0KR

0262

0662

057B

08R

ES

, 270

KR

0265

0662

057A

82R

ES

, 24K

R02

66N

ot P

lace

dR

0267

0662

057A

89R

ES

, 47K

R02

6806

6205

7A73

RE

S, 1

0KR

0269

0662

057A

41R

ES

, 470

R02

7306

6205

7A82

RE

S, 2

4KR

0274

Not

Pla

ced

R02

7506

6205

7A73

RE

S, 1

0KR

0276

0662

057A

77R

ES

, 15K

R03

23N

ot P

lace

dR

0324

Not

Pla

ced

R03

31N

ot P

lace

dR

0332

Not

Pla

ced

R03

33N

ot P

lace

dR

0335

Not

Pla

ced

R03

41N

ot P

lace

dR

0342

Not

Pla

ced

R03

43N

ot P

lace

dR

0344

Not

Pla

ced

R03

45N

ot P

lace

dR

0346

Not

Pla

ced

R03

47N

ot P

lace

dR

0401

0662

057A

33R

ES

, 220

R04

0706

6205

7M26

RE

S, 1

0R

0408

0662

057A

25R

ES

, 100

R04

0906

6205

7M26

RE

S, 1

0R

0412

0662

057B

47R

ES

, 0R

0441

0662

057B

47R

ES

, 0R

0442

0662

057A

49R

ES

, 1K

R04

6706

6205

7M26

RE

S, 1

0R

0468

0662

057A

97R

ES

, 100

KR

0481

0662

057B

47R

ES

, 0R

0482

0662

057B

47R

ES

, 0R

0508

0662

057A

41R

ES

, 470

R05

0906

6205

7B47

RE

S, 0

R05

1006

6205

7A65

RE

S, 4

.7K

R05

1106

6205

7A97

RE

S, 1

00K

R05

1206

6205

7A77

RE

S, 1

5K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R05

2506

6205

7A97

RE

S, 1

00K

R05

2906

6205

7A89

RE

S, 4

7KR

0530

0662

057A

81R

ES

, 22K

R05

3106

6205

7A43

RE

S, 5

60R

0533

0662

057B

47R

ES

, 0R

0535

0662

057A

49R

ES

, 1K

R05

3706

6205

7A33

RE

S, 2

20R

0538

0662

057A

33R

ES

, 220

R05

3906

6205

7A65

RE

S, 4

.7K

R05

4106

6205

7A83

RE

S, 2

7KR

0542

Not

Pla

ced

R05

4306

6205

7A97

RE

S, 1

00K

R05

5506

6205

7A25

RE

S, 1

00R

0556

0662

057A

25R

ES

, 100

R05

9106

6205

7A82

RE

S, 2

4KR

0592

0662

057A

01R

ES

, 10

R05

9306

6205

7A97

RE

S, 1

00K

R06

1106

6205

7A91

RE

S, 5

6KR

0612

0662

057A

65R

ES

, 4.7

KR

0621

0662

057A

82R

ES

, 24K

R06

4106

6205

7A73

RE

S, 1

0KR

0642

0660

076E

70R

ES

, 7.5

KR

0643

0660

076E

51R

ES

, 1.2

KR

0651

0662

057A

01R

ES

, 10

R06

5206

6205

7A01

RE

S, 1

0R

0661

0662

057A

49R

ES

, 1K

R06

6206

6205

7B02

RE

S, 1

50K

R06

7106

6205

7A84

RE

S, 3

0KR

0672

0662

057A

73R

ES

, 10K

R06

8106

6205

7A79

RE

S, 1

8KR

0682

0662

057A

93R

ES

, 68K

R10

0106

6205

7A05

RE

S, 1

5R

1002

0662

057A

05R

ES

, 15

R10

0306

6205

7A41

RE

S, 4

70R

1004

0662

057A

59R

ES

, 2.7

KR

1005

0662

057A

31R

ES

, 180

R10

0606

6205

7A73

RE

S, 1

0KR

1007

0662

057A

71R

ES

, 8.2

KR

1008

0662

057A

65R

ES

, 4.7

KR

1009

Not

Pla

ced

R10

10N

ot P

lace

dR

1011

Not

Pla

ced

R11

0106

6205

7A18

RE

S, 5

1R

1102

0662

057A

78R

ES

, 16K

R11

0306

6205

7A39

RE

S, 3

90R

1104

0662

057A

71R

ES

, 8.2

KR

1106

0662

057A

25R

ES

, 100

R11

0706

6205

7A68

RE

S, 6

.2K

R11

0806

6205

7A61

RE

S, 3

.3K

R11

0906

6205

7A37

RE

S, 3

30R

1110

0662

057A

25R

ES

, 100

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

4-64

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

R11

1106

6205

7A17

RE

S, 4

7R

1113

0662

057A

64R

ES

, 4.3

KR

1114

0662

057A

64R

ES

, 4.3

KR

1115

0662

057A

75R

ES

, 12K

R11

16N

ot P

lace

dR

1117

0662

057A

37R

ES

, 330

R11

1806

6205

7A56

RE

S, 2

KR

1119

0662

057A

83R

ES

, 27K

R11

2006

6205

7A18

RE

S, 5

1R

1121

0662

057A

71R

ES

, 8.2

KR

1122

0662

057A

73R

ES

, 10K

R11

2306

6205

7A51

RE

S, 1

.2K

R11

24N

ot P

lace

dR

1125

Not

Pla

ced

R11

26N

ot P

lace

dR

1127

Not

Pla

ced

R11

2806

6205

7A73

RE

S, 1

0KR

1129

0662

057A

73R

ES

, 10K

R11

3006

6205

7A73

RE

S, 1

0KR

1131

0662

057A

77R

ES

, 15K

R11

3206

6205

7A58

RE

S, 2

.4K

R11

3306

6205

7A61

RE

S, 3

.3K

R11

3406

6205

7A05

RE

S, 1

5R

1135

0662

057A

20R

ES

, 62

R11

3606

6205

7A45

RE

S, 6

80R

1137

0662

057A

75R

ES

, 12K

R11

3806

6205

7A01

RE

S, 1

0R

1139

0611

077A

12R

ES

, 2.7

R11

4006

6205

7A39

RE

S, 3

90R

1141

0662

057A

55R

ES

, 1.8

KR

1201

0662

057B

47R

ES

, 0R

1202

Not

Pla

ced

R12

0306

6205

7B02

RE

S, 1

50K

R12

0406

6205

7B47

RE

S, 0

R12

0506

6205

7A45

RE

S, 6

80R

1206

0662

057A

41R

ES

, 470

R12

07N

ot P

lace

dR

1208

0662

057A

18R

ES

, 51

R12

0906

6205

7A61

RE

S, 3

.3K

R12

1006

6205

7A33

RE

S, 2

20R

1211

0662

057B

14R

ES

, 470

KR

1212

0662

057A

25R

ES

, 100

R12

1306

6205

7A45

RE

S, 6

80R

1214

0662

057A

54R

ES

, 1.6

KR

1215

0662

057A

21R

ES

, 68

R12

1606

6205

7A18

RE

S, 5

1R

1217

0662

057A

25R

ES

, 100

R12

1806

6205

7A17

RE

S, 4

7R

1219

0662

057A

17R

ES

, 47

R12

2006

6205

7A17

RE

S, 4

7R

1221

0662

057B

47R

ES

, 0

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R12

22N

ot P

lace

dR

1306

0662

057B

47R

ES

, 0R

1307

0662

057A

19R

ES

, 56

R13

0806

6205

7A19

RE

S, 5

6R

1309

0662

057A

41R

ES

, 470

R13

1106

6205

7A73

RE

S, 1

0KR

1312

0662

057A

51R

ES

, 1.2

KR

1313

0662

057A

51R

ES

, 1.2

KR

1314

0662

057A

37R

ES

, 330

R13

1506

6205

7A61

RE

S, 3

.3K

R13

1606

6205

7A45

RE

S, 6

80R

1317

0662

057A

09R

ES

, 22

R13

1806

6205

7A41

RE

S, 4

70R

1319

0662

057A

01R

ES

, 10

R13

2006

6205

7A41

RE

S, 4

70R

1325

Not

Pla

ced

R13

2606

6205

7A19

RE

S, 5

6R

1327

0662

057A

19R

ES

, 56

R13

2806

6205

7A41

RE

S, 4

70R

1330

0662

057A

73R

ES

, 10K

R13

3106

6205

7A51

RE

S, 1

.2K

R13

3206

6205

7A51

RE

S, 1

.2K

R13

3306

6205

7A37

RE

S, 3

30R

1334

0662

057A

61R

ES

, 3.3

KR

1335

0662

057A

47R

ES

, 820

R13

3606

6205

7A09

RE

S, 2

2R

1337

0662

057A

22R

ES

, 75

R13

3806

6205

7A27

RE

S, 1

20R

1339

0662

057A

22R

ES

, 75

R13

4006

6205

7A49

RE

S, 1

KR

1341

0662

057A

25R

ES

, 100

R13

4206

6205

7A25

RE

S, 1

00R

1343

0662

057C

55R

ES

, 150

R13

4406

6205

7A49

RE

S, 1

KR

1345

0662

057A

25R

ES

, 100

R13

4606

6205

7A25

RE

S, 1

00R

1347

0662

057C

55R

ES

, 150

R13

7606

6205

7A65

RE

S, 4

.7K

R14

0206

1107

9A64

RE

S, 3

90R

1404

0680

194M

18R

ES

, 51

R14

0506

8019

4M18

RE

S, 5

1R

1406

0662

057A

73R

ES

, 10K

R14

0706

6205

7A73

RE

S, 1

0KR

1409

0682

089V

01R

ES

, .01

R14

1006

8396

2T52

RE

S, 1

30R

1411

0662

057C

99R

ES

, 10K

R14

12N

ot P

lace

dR

1413

0680

194M

01R

ES

, 10

R14

1406

8019

4M01

RE

S, 1

0R

1415

Not

Pla

ced

R14

1606

8019

4M01

RE

S, 1

0

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R14

1706

8019

4M01

RE

S, 1

0R

1418

0680

194M

01R

ES

, 10

R14

1906

8019

4M01

RE

S, 1

0R

1420

0680

194M

01R

ES

, 10

R14

2106

8019

4M01

RE

S, 1

0R

1422

0680

194M

01R

ES

, 10

R14

2306

8019

4M01

RE

S, 1

0R

1424

0662

057D

10R

ES

, 27K

R14

2506

6205

7D10

RE

S, 2

7KR

1440

0662

057A

25R

ES

, 100

R14

41N

ot P

lace

dR

1442

0662

057A

25R

ES

, 100

R14

4306

6205

7A49

RE

S, 1

KR

1444

0662

057A

33R

ES

, 220

R14

4506

6205

7A68

RE

S, 6

.2K

R14

46N

ot P

lace

dR

1447

0662

057B

47R

ES

, 0R

1448

Not

Pla

ced

R14

4906

1107

9A64

RE

S, 3

90R

1450

0683

962T

71R

ES

, 820

R14

5106

6205

7K31

RE

S, 1

80R

1453

0662

057K

31R

ES

, 180

R14

5406

6205

7K31

RE

S, 1

80R

1455

Not

Pla

ced

R14

5706

6205

7K01

RE

S, 1

0R

1458

0611

079A

64R

ES

, 390

R14

5906

1107

9A64

RE

S, 3

90R

1460

0680

106R

01R

ES

, 0.1

R14

6306

6205

7A75

RE

S, 1

2KR

1464

0662

057A

61R

ES

, 3.3

KR

1465

0662

057A

61R

ES

, 3.3

KR

1466

Not

Pla

ced

R14

67N

ot P

lace

dR

1468

Not

Pla

ced

R14

6906

6205

7C01

RE

S, 0

R14

70N

ot P

lace

dR

1471

Not

Pla

ced

R14

7206

6205

7A73

RE

S, 1

0KR

1473

0680

194M

01R

ES

, 10

R14

7406

8019

4M01

RE

S, 1

0R

1475

0680

194M

01R

ES

, 10

R14

7606

8019

4M01

RE

S, 1

0R

1477

0662

057A

61R

ES

, 3.3

KR

1478

0662

057A

73R

ES

, 10K

R14

7906

6205

7A61

RE

S, 3

.3K

R14

8006

6205

7D10

RE

S, 2

7KR

1481

0662

057A

90R

ES

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RE

S, 0

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FC

0662

2113

741F

49C

AP,

.01u

FC

0663

2113

743E

20C

AP,

0.1

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0671

2113

743E

20C

AP,

0.1

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0681

2113

743E

20C

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1001

2113

740F

56C

AP,

160

pFC

1002

2113

741F

49C

AP,

.01u

FC

1003

2113

740F

62C

AP,

300

pFC

1004

2113

740F

53C

AP,

120

pFC

1006

2113

740F

46C

AP,

62p

FC

1007

2113

740F

60C

AP,

240

pFC

1008

2113

741F

25C

AP,

100

0pF

C10

0921

1374

0F60

CA

P, 2

40pF

C10

1021

1374

0F46

CA

P, 6

2pF

C10

1121

1374

0F53

CA

P, 1

20pF

C10

1221

1374

0F62

CA

P, 3

00pF

C10

1321

1374

1F49

CA

P, .0

1uF

C10

1421

1374

0F56

CA

P, 1

60pF

C10

1521

1374

1F49

CA

P, .0

1uF

C10

1621

1374

0F55

CA

P, 1

50pF

C10

1721

1374

1F27

CA

P, 1

200p

FC

1019

2113

740F

60C

AP,

240

pFC

1020

2113

740F

59C

AP,

220

pFC

1021

2113

740F

62C

AP,

300

pFC

1022

2113

740F

59C

AP,

220

pFC

1023

2113

740F

62C

AP,

300

pFC

1024

2113

740F

59C

AP,

220

pFC

1025

2113

740F

60C

AP,

240

pFC

1026

2113

741F

27C

AP,

120

0pF

C10

2721

1374

0F55

CA

P, 1

50pF

C10

2821

1374

1F49

CA

P, .0

1uF

C10

2921

1374

1F49

CA

P, .0

1uF

C10

3021

1374

3E20

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P, 0

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C10

3121

1374

3E20

CA

P, 0

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C10

3221

1374

0F48

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P, 7

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C10

3321

1374

0F50

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P, 9

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3421

1374

0F51

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Cir

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0F46

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3721

1374

0F59

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P, 2

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0F62

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P, 3

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C10

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1374

0F62

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P, 3

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C10

4021

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0F59

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P, 2

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C11

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1374

0F53

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P, 1

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C11

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1374

0F50

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P, 9

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C11

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1374

0F58

CA

P, 2

00pF

C11

0421

1374

3E20

CA

P, 0

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C11

0521

1374

3E20

CA

P, 0

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C11

0621

1374

3E20

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P, 0

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C11

0721

1374

0F49

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P, 8

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C11

0821

1374

3E20

CA

P, 0

.1uF

C11

0921

1374

0F40

CA

P, 3

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C11

10N

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lace

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2113

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2.4

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1112

2113

740F

40C

AP,

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FC

1113

2113

743E

20C

AP,

0.1

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1114

2113

743E

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0.1

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1115

2113

740F

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AP,

120

pFC

1116

2113

740F

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AP,

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1119

2113

743E

20C

AP,

0.1

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1120

Not

Pla

ced

C11

21N

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lace

dC

1122

Not

Pla

ced

C11

2321

1374

0F39

CA

P, 3

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C11

2421

1374

3E20

CA

P, 0

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C11

2521

1374

3E11

CA

P, .0

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C11

2621

1374

3E20

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P, 0

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C11

2723

1104

9A57

CA

PP,

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FC

1128

2113

743E

20C

AP,

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1129

2113

740F

35C

AP,

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FC

1130

2113

740F

47C

AP,

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FC

1131

Not

Pla

ced

C11

3321

1374

3E20

CA

P, 0

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C11

3421

1374

3E20

CA

P, 0

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C11

3521

1374

3E20

CA

P, 0

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C11

3621

1374

3E20

CA

P, 0

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C11

3721

1374

0F53

CA

P, 1

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C11

3821

1374

3E20

CA

P, 0

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C11

3921

1374

1F49

CA

P, .0

1uF

C11

4021

1374

1F49

CA

P, .0

1uF

C11

4121

1374

3E20

CA

P, 0

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C11

4221

1374

3E20

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P, 0

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C11

4321

1374

3E20

CA

P, 0

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C11

4421

1374

3E20

CA

P, 0

.1uF

C11

4521

1374

1F41

CA

P, 4

700p

FC

1146

2113

740F

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AP,

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FC

1147

2113

740F

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1148

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743E

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Cir

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C11

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1374

0F53

CA

P, 1

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C11

5021

1374

0F54

CA

P, 1

30pF

C11

51N

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lace

dC

1152

Not

Pla

ced

C11

53N

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lace

dC

1201

2113

743E

20C

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1202

2311

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P, 4

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1374

1F49

CA

P, .0

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C12

0421

1374

0F59

CA

P, 2

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C12

05N

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lace

dC

1206

2113

740L

37C

AP,

62p

FC

1207

2113

740F

07C

AP,

1.5

pFC

1208

2113

740A

82C

AP,

150

0pF

C12

0923

1104

9A57

CA

PP,

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FC

1210

2113

743E

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0.1

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1211

2113

741F

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AP,

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1212

2311

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P, 1

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2113

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C12

1421

1374

3E10

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P, .0

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C12

1521

1374

0C37

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P, 6

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FC

1216

2311

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P, 4

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C12

1721

1374

1F49

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P, .0

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C12

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P, 0

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C12

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4.7

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P, 4

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C12

21N

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lace

dC

1222

2113

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FC

1223

2113

741F

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AP,

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FC

1224

2113

740F

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AP,

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FC

1225

2113

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FC

1226

Not

Pla

ced

C12

2721

1374

1F49

CA

P, .0

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C12

28N

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lace

dC

1229

2113

741F

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AP,

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FC

1230

2113

741F

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AP,

.01u

FC

1231

2113

741F

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AP,

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FC

1232

Not

Pla

ced

C12

33N

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lace

dC

1234

Not

Pla

ced

C12

5023

1104

9A09

CA

PP,

2.2

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1251

2113

743E

20C

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0.1

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1252

2113

743E

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AP,

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1253

2311

049J

11C

AP

P, 4

.7uF

C12

5421

1374

1F49

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P, .0

1uF

C13

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lace

dC

1305

Not

Pla

ced

C13

0621

1374

0L23

CA

P, 1

6pF

C13

0721

1374

0L27

CA

P, 2

4pF

C13

0821

1374

0F19

CA

P, 4

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C13

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2113

741F

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Cir

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C13

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P, .0

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P, .0

1uF

C13

1421

1374

0L27

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P, 2

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C13

1521

1374

0L27

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P, 2

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C13

1621

1374

0F15

CA

P, 3

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C13

1721

1374

3E20

CA

P, 0

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C13

1821

1374

1F49

CA

P, .0

1uF

C13

1921

1374

1F49

CA

P, .0

1uF

C13

2021

1374

1F49

CA

P, .0

1uF

C13

2121

1374

0F17

CA

P, 3

.9pF

C13

2321

1374

0L21

CA

P, 1

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C13

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1374

1F49

CA

P, .0

1uF

C13

2621

1374

1F49

CA

P, .0

1uF

C13

3321

1374

0L28

CA

P, 2

7pF

C13

3421

1374

0L36

CA

P, 5

6pF

C13

3521

1374

0F19

CA

P, 4

.7pF

C13

3621

1374

3E20

CA

P, 0

.1uF

C13

37N

ot P

lace

dC

1338

2113

741F

49C

AP,

.01u

FC

1339

2113

741F

49C

AP,

.01u

FC

1340

2113

741F

49C

AP,

.01u

FC

1341

2113

740L

36C

AP,

56p

FC

1342

2113

740L

36C

AP,

56p

FC

1343

2113

740F

15C

AP,

3.3

pFC

1344

2113

741F

49C

AP,

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FC

1345

2113

743E

20C

AP,

0.1

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1346

2113

741F

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AP,

.01u

FC

1347

2113

741F

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AP,

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FC

1348

2113

740F

17C

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3.9

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1349

2113

743E

20C

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0.1

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1350

2113

740F

31C

AP,

15p

FC

1351

2113

741F

49C

AP,

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FC

1352

2113

741F

49C

AP,

.01u

FC

1354

Not

Pla

ced

C13

56N

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lace

dC

1360

Not

Pla

ced

C13

61N

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lace

dC

1362

Not

Pla

ced

C14

0121

1374

1A45

CA

P, .0

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C14

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1A45

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P, .0

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C14

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dC

1404

2113

741A

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AP,

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FC

1405

2113

741A

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AP,

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1406

Not

Pla

ced

C14

0721

1374

1A45

CA

P, .0

1uF

C14

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dC

1409

Not

Pla

ced

C14

1021

1374

1M69

CA

P, 0

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C14

1221

1374

1A45

CA

P, .0

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C14

1321

1374

1A45

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P, .0

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C14

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Cir

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C14

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1374

1M69

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P, 0

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C14

16N

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lace

dC

1417

Not

Pla

ced

C14

1821

1374

0A73

CA

P, 5

60pF

C14

1921

1374

1A45

CA

P, .0

1uF

C14

2021

1374

1A45

CA

P, .0

1uF

C14

21N

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dC

1422

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Pla

ced

C14

2321

1374

1A45

CA

P, .0

1uF

C14

2421

1374

1A45

CA

P, .0

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C14

2521

1374

1W01

CA

P, 1

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1426

2113

741W

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AP,

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C14

2721

1107

8B59

CA

P, 4

70pF

C14

2821

1107

8B59

CA

P, 4

70pF

C14

2921

1107

8B58

CA

P, 4

30pF

C14

3021

1107

8B58

CA

P, 4

30pF

C14

3121

1374

1A45

CA

P, .0

1uF

C14

3221

1374

1W01

CA

P, 1

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1433

2113

741W

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C14

3421

1374

1A45

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P, .0

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C14

3521

1374

1W01

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P, 1

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1436

2113

741A

45C

AP,

.01u

FC

1437

2111

078B

58C

AP,

430

pFC

1438

2111

078B

58C

AP,

430

pFC

1439

2111

078B

59C

AP,

470

pFC

1440

2111

078B

59C

AP,

470

pFC

1441

2111

078B

52C

AP,

240

pFC

1442

2111

078B

45C

AP,

130

pFC

1443

2111

078B

59C

AP,

470

pFC

1444

2111

078B

59C

AP,

470

pFC

1445

2113

741A

45C

AP,

.01u

FC

1446

Not

Pla

ced

C14

4721

1107

8B52

CA

P, 2

40pF

C14

4821

1107

8B52

CA

P, 2

40pF

C14

4921

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0M49

CA

P, 1

80pF

C14

50N

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lace

dC

1451

2180

060M

49C

AP,

180

pFC

1452

2180

060M

29C

AP,

27p

FC

1453

2180

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42C

AP,

91p

FC

1454

2180

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38C

AP,

62p

FC

1455

2180

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30C

AP,

30p

FC

1456

2180

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40C

AP,

75p

FC

1457

2113

741A

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AP,

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FC

1458

2311

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P, 1

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C14

5923

1104

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PP,

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1460

2113

743E

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AP,

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1461

2113

741A

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1462

2311

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1392

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P, 1

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1464

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741A

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1465

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1A45

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P, .0

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C14

6721

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0A46

CA

P, 4

7pF

C14

6821

1374

1A45

CA

P, .0

1uF

C14

6921

1374

1W01

CA

P, 1

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1470

2113

741W

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AP,

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C14

7121

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1A45

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P, .0

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C14

7221

1374

1M69

CA

P, 0

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C14

7321

1374

1M69

CA

P, 0

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C14

7421

1374

1A45

CA

P, .0

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C14

7521

1374

1W01

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P, 1

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1476

2113

741A

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AP,

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1477

2111

078B

42C

AP,

100

pFC

1478

2111

078B

42C

AP,

100

pFC

1479

2111

078B

52C

AP,

240

pFC

1480

2111

078B

54C

AP,

300

pFC

1481

2111

078B

54C

AP,

300

pFC

1482

2113

928E

01C

AP,

1uF

C14

8421

1374

1F33

CA

P, 2

200p

FC

1485

2113

741A

45C

AP,

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FC

1501

2113

741F

33C

AP,

220

0pF

C15

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1374

1F33

CA

P, 2

200p

FC

1503

2113

741F

33C

AP,

220

0pF

C15

0421

1374

1F33

CA

P, 2

200p

FC

1505

2113

741F

25C

AP,

100

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C15

0621

1374

1F25

CA

P, 1

000p

FC

1507

2113

741F

33C

AP,

220

0pF

C15

0821

1374

1F33

CA

P, 2

200p

FC

1509

2311

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P, 1

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1510

2113

741F

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AP,

220

0pF

C15

1121

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1F33

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200p

FC

1512

2113

741F

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220

0pF

C15

2521

1374

3E20

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P, 0

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C15

2621

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0F51

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P, 1

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C15

2721

1374

1A45

CA

P, .0

1uF

C15

2821

1374

1A45

CA

P, .0

1uF

C15

2921

1374

1M69

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P, 0

.1uF

C15

3021

1374

1A45

CA

P, .0

1uF

C15

31N

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dC

1532

Not

Pla

ced

C16

0121

1374

3E20

CA

P, 0

.1uF

C16

0221

1374

0F59

CA

P, 2

20pF

C16

0321

1374

3A23

CA

P, 0

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0324

Not

Pla

ced

R03

31N

ot P

lace

dR

0332

Not

Pla

ced

R03

33N

ot P

lace

dR

0335

Not

Pla

ced

R03

41N

ot P

lace

dR

0342

Not

Pla

ced

R03

43N

ot P

lace

dR

0344

Not

Pla

ced

R03

45N

ot P

lace

dR

0346

Not

Pla

ced

R03

47N

ot P

lace

dR

0401

0662

057A

33R

ES

, 220

R04

0706

6205

7M26

RE

S, 1

0R

0408

0662

057A

25R

ES

, 100

R04

0906

6205

7M26

RE

S, 1

0R

0412

0662

057B

47R

ES

, 0R

0441

0662

057B

47R

ES

, 0R

0442

0662

057A

49R

ES

, 1K

R04

6706

6205

7M26

RE

S, 1

0R

0468

0662

057A

97R

ES

, 100

KR

0481

0662

057B

47R

ES

, 0R

0482

0662

057B

47R

ES

, 0R

0508

0662

057A

41R

ES

, 470

R05

0906

6205

7B47

RE

S, 0

R05

1006

6205

7A65

RE

S, 4

.7K

R05

1106

6205

7A97

RE

S, 1

00K

R05

1206

6205

7A77

RE

S, 1

5KR

0525

0662

057A

97R

ES

, 100

KR

0529

0662

057A

89R

ES

, 47K

R05

3006

6205

7A81

RE

S, 2

2K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R05

3106

6205

7A43

RE

S, 5

60R

0533

0662

057B

47R

ES

, 0R

0535

0662

057A

49R

ES

, 1K

R05

3706

6205

7A33

RE

S, 2

20R

0538

0662

057A

33R

ES

, 220

R05

3906

6205

7A65

RE

S, 4

.7K

R05

4106

6205

7A83

RE

S, 2

7KR

0542

Not

Pla

ced

R05

4306

6205

7A97

RE

S, 1

00K

R05

5506

6205

7A25

RE

S, 1

00R

0556

0662

057A

25R

ES

, 100

R05

9106

6205

7A82

RE

S, 2

4KR

0592

0662

057A

01R

ES

, 10

R05

9306

6205

7A97

RE

S, 1

00K

R06

1106

6205

7A91

RE

S, 5

6KR

0612

0662

057A

65R

ES

, 4.7

KR

0621

0662

057A

82R

ES

, 24K

R06

4106

6205

7A73

RE

S, 1

0KR

0642

0660

076E

70R

ES

, 7.5

KR

0643

0660

076E

51R

ES

, 1.2

KR

0651

0662

057A

01R

ES

, 10

R06

5206

6205

7A01

RE

S, 1

0R

0661

0662

057A

49R

ES

, 1K

R06

6206

6205

7B02

RE

S, 1

50K

R06

7106

6205

7A84

RE

S, 3

0KR

0672

0662

057A

73R

ES

, 10K

R06

8106

6205

7A79

RE

S, 1

8KR

0682

0662

057A

93R

ES

, 68K

R10

0106

6205

7A01

RE

S, 1

0R

1002

0662

057A

05R

ES

, 15

R10

0306

6205

7A41

RE

S, 4

70R

1004

0662

057A

59R

ES

, 2.7

KR

1005

0662

057A

31R

ES

, 180

R10

0606

6205

7A73

RE

S, 1

0KR

1007

0662

057A

71R

ES

, 8.2

KR

1008

0662

057A

65R

ES

, 4.7

KR

1009

Not

Pla

ced

R10

10N

ot P

lace

dR

1011

Not

Pla

ced

R11

0106

6205

7A18

RE

S, 5

1R

1102

0662

057A

78R

ES

, 16K

R11

0306

6205

7A39

RE

S, 3

90R

1104

0662

057A

71R

ES

, 8.2

KR

1106

0662

057A

25R

ES

, 100

R11

0706

6205

7A68

RE

S, 6

.2K

R11

0806

6205

7A61

RE

S, 3

.3K

R11

0906

6205

7A37

RE

S, 3

30R

1110

0662

057A

25R

ES

, 100

R11

1106

6205

7A17

RE

S, 4

7R

1113

0662

057A

64R

ES

, 4.3

KR

1114

0662

057A

64R

ES

, 4.3

K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

4-70

Low

Ban

d PC

Bs

/ Sch

emat

ics

/ Par

ts L

ists

R11

1506

6205

7A75

RE

S, 1

2KR

1116

Not

Pla

ced

R11

1706

6205

7A37

RE

S, 3

30R

1118

0662

057A

56R

ES

, 2K

R11

1906

6205

7A83

RE

S, 2

7KR

1120

0662

057A

18R

ES

, 51

R11

2106

6205

7A71

RE

S, 8

.2K

R11

2206

6205

7A73

RE

S, 1

0KR

1123

0662

057A

51R

ES

, 1.2

KR

1124

Not

Pla

ced

R11

25N

ot P

lace

dR

1126

Not

Pla

ced

R11

27N

ot P

lace

dR

1128

0662

057A

73R

ES

, 10K

R11

2906

6205

7A73

RE

S, 1

0KR

1130

0662

057A

73R

ES

, 10K

R11

3106

6205

7A77

RE

S, 1

5KR

1132

0662

057A

58R

ES

, 2.4

KR

1133

0662

057A

61R

ES

, 3.3

KR

1134

0662

057A

05R

ES

, 15

R11

3506

6205

7A20

RE

S, 6

2R

1136

0662

057A

45R

ES

, 680

R11

3706

6205

7A75

RE

S, 1

2KR

1138

0662

057A

01R

ES

, 10

R11

3906

1107

7A12

RE

S, 2

.7R

1140

0662

057A

39R

ES

, 390

R11

4106

6205

7A55

RE

S, 1

.8K

R12

0106

6205

7B47

RE

S, 0

R12

02N

ot P

lace

dR

1203

0662

057B

02R

ES

, 150

KR

1204

0662

057B

47R

ES

, 0R

1205

0662

057A

45R

ES

, 680

R12

0606

6205

7A41

RE

S, 4

70R

1207

Not

Pla

ced

R12

0806

6205

7A18

RE

S, 5

1R

1209

0662

057A

61R

ES

, 3.3

KR

1210

0662

057A

33R

ES

, 220

R12

1106

6205

7B14

RE

S, 4

70K

R12

1206

6205

7A25

RE

S, 1

00R

1213

0662

057A

45R

ES

, 680

R12

1406

6205

7A54

RE

S, 1

.6K

R12

1506

6205

7A21

RE

S, 6

8R

1216

0662

057A

18R

ES

, 51

R12

1706

6205

7A25

RE

S, 1

00R

1218

0662

057A

17R

ES

, 47

R12

1906

6205

7A17

RE

S, 4

7R

1220

0662

057A

17R

ES

, 47

R12

2106

6205

7B47

RE

S, 0

R12

22N

ot P

lace

dR

1306

0662

057B

47R

ES

, 0R

1307

0662

057A

19R

ES

, 56

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R13

0806

6205

7A19

RE

S, 5

6R

1309

0662

057A

41R

ES

, 470

R13

1106

6205

7A73

RE

S, 1

0KR

1312

0662

057A

51R

ES

, 1.2

KR

1313

0662

057A

51R

ES

, 1.2

KR

1314

0662

057A

37R

ES

, 330

R13

1506

6205

7A61

RE

S, 3

.3K

R13

1606

6205

7A45

RE

S, 6

80R

1317

0662

057A

09R

ES

, 22

R13

1806

6205

7A41

RE

S, 4

70R

1319

0662

057A

01R

ES

, 10

R13

2006

6205

7A41

RE

S, 4

70R

1325

0662

057B

47R

ES

, 0R

1326

0662

057A

19R

ES

, 56

R13

2706

6205

7A19

RE

S, 5

6R

1328

0662

057A

41R

ES

, 470

R13

3006

6205

7A73

RE

S, 1

0KR

1331

0662

057A

51R

ES

, 1.2

KR

1332

0662

057A

51R

ES

, 1.2

KR

1333

0662

057A

37R

ES

, 330

R13

3406

6205

7A61

RE

S, 3

.3K

R13

3506

6205

7A47

RE

S, 8

20R

1336

0662

057A

09R

ES

, 22

R13

3706

6205

7A22

RE

S, 7

5R

1338

0662

057A

27R

ES

, 120

R13

3906

6205

7A22

RE

S, 7

5R

1340

0662

057A

49R

ES

, 1K

R13

4106

6205

7A25

RE

S, 1

00R

1342

0662

057A

25R

ES

, 100

R13

4306

6205

7C55

RE

S, 1

50R

1344

0662

057A

49R

ES

, 1K

R13

4506

6205

7A25

RE

S, 1

00R

1346

0662

057A

25R

ES

, 100

R13

4706

6205

7C55

RE

S, 1

50R

1376

0662

057A

65R

ES

, 4.7

KR

1402

0611

079A

64R

ES

, 390

R14

0406

8019

4M18

RE

S, 5

1R

1405

0680

194M

18R

ES

, 51

R14

0606

6205

7A73

RE

S, 1

0KR

1407

0662

057A

73R

ES

, 10K

R14

0906

8208

9V01

RE

S, .

01R

1410

0683

962T

52R

ES

, 130

R14

1106

6205

7C99

RE

S, 1

0KR

1412

Not

Pla

ced

R14

1306

8019

4M01

RE

S, 1

0R

1414

0680

194M

01R

ES

, 10

R14

15N

ot P

lace

dR

1416

0680

194M

01R

ES

, 10

R14

1706

8019

4M01

RE

S, 1

0R

1418

0680

194M

01R

ES

, 10

R14

1906

8019

4M01

RE

S, 1

0

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R14

2006

8019

4M01

RE

S, 1

0R

1421

0680

194M

01R

ES

, 10

R14

2206

8019

4M01

RE

S, 1

0R

1423

0680

194M

01R

ES

, 10

R14

2406

6205

7D10

RE

S, 2

7KR

1425

0662

057D

10R

ES

, 27K

R14

4006

6205

7A25

RE

S, 1

00R

1441

Not

Pla

ced

R14

4206

6205

7B47

RE

S, 0

R14

4306

6205

7A49

RE

S, 1

KR

1444

0662

057A

33R

ES

, 220

R14

4506

6205

7A68

RE

S, 6

.2K

R14

46N

ot P

lace

dR

1447

0662

057B

47R

ES

, 0R

1448

Not

Pla

ced

R14

4906

1107

9A64

RE

S, 3

90R

1450

0683

962T

71R

ES

, 820

R14

51N

ot P

lace

dR

1453

0662

057K

31R

ES

, 180

R14

5406

6205

7K31

RE

S, 1

80R

1455

0662

057K

31R

ES

, 180

R14

5706

6205

7K01

RE

S, 1

0R

1458

0611

079A

64R

ES

, 390

R14

5906

1107

9A64

RE

S, 3

90R

1460

0680

106R

01R

ES

, 0.1

R14

6306

6205

7A75

RE

S, 1

2KR

1464

0662

057A

61R

ES

, 3.3

KR

1465

0662

057A

61R

ES

, 3.3

KR

1466

Not

Pla

ced

R14

67N

ot P

lace

dR

1468

Not

Pla

ced

R14

6906

6205

7C01

RE

S, 0

R14

70N

ot P

lace

dR

1471

Not

Pla

ced

R14

7206

6205

7A73

RE

S, 1

0KR

1473

0680

194M

01R

ES

, 10

R14

7406

8019

4M01

RE

S, 1

0R

1475

0680

194M

01R

ES

, 10

R14

7606

8019

4M01

RE

S, 1

0R

1477

0662

057A

61R

ES

, 3.3

KR

1478

0662

057A

73R

ES

, 10K

R14

7906

6205

7A61

RE

S, 3

.3K

R14

8006

6205

7D10

RE

S, 2

7KR

1482

0662

057B

47R

ES

, 0R

1483

0662

057A

34R

ES

, 240

R14

8406

6205

7A49

RE

S, 1

KR

1501

0662

057A

45R

ES

, 680

R15

0206

6205

7C67

RE

S, 4

70R

1503

0662

057A

61R

ES

, 3.3

KR

1504

0662

057A

73R

ES

, 10K

R15

0506

6205

7A69

RE

S, 6

.8K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

R15

0606

6205

7A87

RE

S, 3

9KR

1507

0662

057A

49R

ES

, 1K

R15

0806

6205

7R17

RE

S, 4

3.2

R15

0906

6205

7P95

RE

S, 1

00K

R15

10N

ot P

lace

dR

1511

0662

057P

95R

ES

, 100

KR

1512

Not

Pla

ced

R15

1306

6205

7C76

RE

S, 1

.1K

R15

1406

6205

7A97

RE

S, 1

00K

R15

1506

6205

7A49

RE

S, 1

KR

1516

0662

057C

71R

ES

, 680

R15

1706

6205

7C71

RE

S, 6

80R

1518

0662

057A

61R

ES

, 3.3

KR

1519

0662

057C

71R

ES

, 680

R15

2206

6205

7A73

RE

S, 1

0KR

1523

Not

Pla

ced

R15

2406

6205

7C71

RE

S, 6

80R

1525

Not

Pla

ced

R15

2606

6205

7A97

RE

S, 1

00K

R15

2706

6205

7A97

RE

S, 1

00K

R15

2806

6205

7A80

RE

S, 2

0KR

1532

0662

057A

95R

ES

, 82K

R15

3306

6205

7A73

RE

S, 1

0KR

1535

0662

057R

16R

ES

, 39.

2R

1539

0662

057A

53R

ES

, 1.5

KR

1540

0662

057A

53R

ES

, 1.5

KR

1542

0662

057A

49R

ES

, 1K

R15

4306

6205

7A49

RE

S, 1

KR

1544

0662

057A

90R

ES

, 51K

R15

4506

6205

7A65

RE

S, 4

.7K

R16

0106

6205

7A73

RE

S, 1

0KR

1602

0662

057A

65R

ES

, 4.7

KR

1604

0662

057A

49R

ES

, 1K

R16

0506

6205

7B10

RE

S, 3

30K

R16

0606

6205

7B02

RE

S, 1

50K

R16

0706

6205

7B19

RE

S, 7

50K

R16

0806

6205

7A57

RE

S, 2

.2K

R16

0906

6205

7A73

RE

S, 1

0KR

1610

0662

057A

82R

ES

, 24K

R16

1106

6205

7A49

RE

S, 1

KR

1612

0662

057A

25R

ES

, 100

R16

1306

6205

7A59

RE

S, 2

.7K

R16

1406

6205

7A49

RE

S, 1

KR

1615

0662

057A

49R

ES

, 1K

R16

1606

6205

7A33

RE

S, 2

20R

1617

0662

057A

57R

ES

, 2.2

KR

1620

0662

057A

51R

ES

, 1.2

KR

1621

0662

057A

68R

ES

, 6.2

KR

1622

0662

057A

49R

ES

, 1K

R16

2606

6205

7A18

RE

S, 5

1R

1627

0662

057A

73R

ES

, 10K

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

Low

Ban

d P

CB

s / S

chem

atic

s / P

arts

Lis

ts4-

71

R16

2806

6205

7A55

RE

S, 1

.8K

R16

2906

6205

7A67

RE

S, 5

.6K

R16

3006

6205

7A53

RE

S, 1

.5K

R16

3106

6205

7A18

RE

S, 5

1R

1632

0662

057A

82R

ES

, 24K

R16

33N

ot P

lace

dR

1635

0662

057B

47R

ES

, 0R

1636

0662

057A

42R

ES

, 510

R16

3706

6205

7A59

RE

S, 2

.7K

R16

3806

6205

7A55

RE

S, 1

.8K

SH

1201

Not

Pla

ced

SH

1202

Not

Pla

ced

SH

1301

Not

Pla

ced

SH

1302

2680

473U

01V

CO

SH

IELD

U01

0151

0222

6J56

MC

68H

C11

FL0

U01

1151

0246

3J64

EE

PR

OM

U01

2151

8613

7B01

FLA

SH

RO

MU

0122

5185

748L

01S

RA

MU

0141

5113

805A

30R

EM

UX

U02

1151

8322

2M49

MC

3403

U02

2151

8513

0C53

AS

FIC

CO

MP

AN

DE

R IC

U02

5151

8470

4M60

MU

X/D

EM

UX

U02

7151

0969

9X01

AU

DIO

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Not

Pla

ced

U03

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lace

dU

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Not

Pla

ced

U03

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lace

dU

0611

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2941

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5251

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Not

Pla

ced

U10

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9C05

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1601

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No

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0504

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0A27

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2C77

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AN

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PP

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0621

4813

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ced

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C01

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ced

C01

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dC

0105

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ced

C01

06N

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lace

dC

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2113

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Pla

ced

C01

1221

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P, 0

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0131

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PP,

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Not

Pla

ced

C02

0421

1374

3E20

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P, 0

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dC

0211

Not

Pla

ced

C02

1223

1104

9A57

CA

PP,

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2113

743E

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0223

2113

743E

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0224

2113

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2113

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2113

743E

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Not

Pla

ced

C02

2823

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CA

PP,

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2113

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C02

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ced

C02

4121

1374

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P, 0

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dC

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ced

C02

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P, 0

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5521

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3E20

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P, 0

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C02

5621

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C02

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3E20

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P, 0

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C02

6221

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0F49

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P, 8

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C02

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P, 0

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C02

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lace

dC

0267

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2311

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P, 4

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C02

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ced

C03

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dC

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Pla

ced

C03

05N

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dC

0324

Not

Pla

ced

C03

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dC

0331

Not

Pla

ced

C03

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dC

0342

Not

Pla

ced

C03

43N

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lace

dC

0344

Not

Pla

ced

C03

51N

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lace

dC

0352

Not

Pla

ced

C03

53N

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lace

dC

0354

Not

Pla

ced

C04

2121

1374

3N48

CA

P, 8

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C04

2221

1374

1F17

CA

P, 4

70pF

C04

2321

1374

1F17

CA

P, 4

70pF

C04

2621

1374

3L09

CA

P, 4

70pF

C04

2721

1374

3L09

CA

P, 4

70pF

C04

2821

1374

3N48

CA

P, 8

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C04

2921

1374

3L09

CA

P, 4

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C04

3021

1374

1F17

CA

P, 4

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C04

3121

1374

1F17

CA

P, 4

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C04

4121

1374

3L09

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P, 4

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C04

4221

1374

3L09

CA

P, 4

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C04

43N

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lace

dC

0445

2113

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AP,

470

pFC

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2113

743L

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2113

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pFC

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2113

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2113

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C04

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P, 4

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C04

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3N48

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P, 8

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C04

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3N48

CA

P, 8

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C04

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3L09

CA

P, 4

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C04

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3L09

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P, 4

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C04

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P, 4

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C04

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C04

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C04

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P, 4

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C04

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P, 4

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C04

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P, 4

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C04

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P, 4

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C04

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P, 4

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P, 4

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C04

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1374

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P, 4

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C04

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CA

P, 4

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C04

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3L09

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P, 4

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C04

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3L09

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P, 4

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C04

9721

1374

3L09

CA

P, 4

70pF

C04

9921

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P, 4

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C05

0121

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P, .0

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P, 4

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C05

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P, 4

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C05

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P, 4

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1374

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P, 4

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P, 4

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C05

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P, 4

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C05

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P, 4

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C05

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1374

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P, 4

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C05

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P, 4

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C05

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P, .0

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C05

1721

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3N48

CA

P, 8

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C05

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1374

1F17

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P, 4

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1104

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PP,

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9A99

CA

PP,

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0554

Not

Pla

ced

C05

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lace

dC

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Not

Pla

ced

C05

6021

1374

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CA

P, 1

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0575

Not

Pla

ced

C05

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lace

dC

0591

2113

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C06

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C10

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2113

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1007

2113

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2113

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1009

2113

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1010

2113

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42C

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1011

2113

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48C

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1012

2113

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1013

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1014

2113

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1015

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2113

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54C

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1017

2113

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pFC

1018

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C10

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1374

0F63

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P, 3

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C10

2021

1374

0F56

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P, 1

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2121

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C10

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P, 3

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P, 1

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C10

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0F62

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P, 3

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C10

2621

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1F25

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P, 1

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1027

2113

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1028

2113

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1030

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P, 7

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C10

3521

1374

0F44

CA

P, 5

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C10

3621

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3E20

CA

P, 0

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C11

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P, 1

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P, 9

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P, 2

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P, 0

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P, 0

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1113

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1114

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AP,

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1115

2113

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53C

AP,

120

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1116

2113

740F

41C

AP,

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1119

2113

743E

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1120

Not

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C11

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dC

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Not

Pla

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C11

2321

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P, 3

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1104

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1129

2113

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35C

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1130

2113

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1131

Not

Pla

ced

C11

3321

1374

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CA

P, 0

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3E20

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P, 0

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C11

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P, 0

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P, 1

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C11

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1374

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P, 0

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C11

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4121

1374

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C11

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3E20

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P, 0

.1uF

C11

4321

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3E20

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P, 0

.1uF

C11

4421

1374

3E20

CA

P, 0

.1uF

C11

4521

1374

1F41

CA

P, 4

700p

FC

1146

2113

740F

49C

AP,

82p

FC

1147

2113

740F

65C

AP,

390

pFC

1148

2113

743E

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0.1

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1149

2113

740F

53C

AP,

120

pFC

1150

2113

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Cir

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No

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C11

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1152

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Pla

ced

C11

53N

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dC

1201

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1202

2311

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1374

1F49

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P, .0

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C12

0421

1374

0F59

CA

P, 2

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C12

05N

ot P

lace

dC

1206

2113

740L

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AP,

62p

FC

1207

2113

740F

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AP,

1.5

pFC

1208

Not

Pla

ced

C12

0923

1104

9A57

CA

PP,

10u

FC

1210

2113

743E

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0.1

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1211

2113

741F

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AP,

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1212

2311

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P, 1

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1213

2113

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C12

1421

1374

3E10

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P, .0

33uF

C12

1521

1374

0C37

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P, 6

800p

FC

1216

2311

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P, 4

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C12

1721

1374

1F49

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P, .0

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3E20

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P, 0

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4.7

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P, 4

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C12

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lace

dC

1222

2113

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1223

2113

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AP,

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1224

2113

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AP,

82p

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1225

2113

741F

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FC

1226

Not

Pla

ced

C12

2721

1374

1F49

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P, .0

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C12

28N

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lace

dC

1229

2113

741F

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AP,

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FC

1230

2113

741F

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AP,

.01u

FC

1231

2113

741F

49C

AP,

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1232

Not

Pla

ced

C12

33N

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lace

dC

1234

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Pla

ced

C12

5023

1104

9A09

CA

PP,

2.2

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1251

2113

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1252

2113

743E

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AP,

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1253

2311

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P, 4

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C12

5421

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1F49

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P, .0

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C13

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1305

Not

Pla

ced

C13

0621

1374

0L23

CA

P, 1

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C13

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0L21

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P, 1

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C13

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1374

0F19

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P, 4

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C13

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lace

dC

1311

2113

741F

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1312

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1313

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C13

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P, 1

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C13

1621

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P, 3

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3E20

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P, 0

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P, .0

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P, .0

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C13

2021

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1F49

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P, .0

1uF

C13

2121

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0F17

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P, 3

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C13

2321

1374

0L21

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P, 1

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C13

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1F49

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P, .0

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C13

2621

1374

1F49

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P, .0

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3321

1374

0L26

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P, 2

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C13

3421

1374

0L31

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P, 3

6pF

C13

3521

1374

0F19

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P, 4

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C13

3621

1374

3E20

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P, 0

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C13

37N

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lace

dC

1338

2113

741F

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1339

2113

741F

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AP,

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1340

2113

741F

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AP,

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1341

2113

740L

31C

AP,

36p

FC

1342

2113

740L

31C

AP,

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FC

1343

2113

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15C

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1344

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1345

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1346

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1347

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1348

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1349

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1350

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1351

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1352

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1354

Not

Pla

ced

C13

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dC

1360

Not

Pla

ced

C13

61N

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dC

1362

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ced

C14

0121

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1A45

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P, .0

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1404

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1405

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1406

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ced

C14

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1A45

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P, .0

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C14

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1409

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ced

C14

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1374

1M69

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P, 0

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C14

1221

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0A65

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P, 2

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C14

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1A45

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P, .0

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C14

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P, .0

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C14

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C14

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P, 4

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C14

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1419

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1420

2113

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1421

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ced

C14

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1423

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1424

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1425

2113

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C14

2621

1374

1W01

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P, 1

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1427

2111

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1428

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1429

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1430

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1431

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1432

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P, 1

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1435

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P, .0

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C14

3721

1107

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P, 4

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C14

3821

1107

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CA

P, 4

70pF

C14

3921

1107

8B59

CA

P, 4

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C14

4021

1107

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P, 4

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C14

4121

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P, 2

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C14

4221

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P, 1

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C14

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P, 1

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C14

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P, 1

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C14

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1446

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1447

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1450

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C14

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C14

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C14

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P, 1

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C14

5421

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1480

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1481

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1482

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1485

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1486

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1503

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1505

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1507

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1532

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1601

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1628

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1629

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, 130

nHL1

004

2408

382C

11ID

CT

R, 1

30nH

L100

524

0838

2A11

IDC

TR

, 130

nHL1

006

2408

382A

11ID

CT

R, 1

30nH

L100

724

0838

2C11

IDC

TR

, 130

nHL1

008

2408

382A

11ID

CT

R, 1

30nH

L100

924

0838

2C11

IDC

TR

, 130

nHL1

010

2408

382A

11ID

CT

R, 1

30nH

L101

124

6258

7N68

IDC

TR

, 1uH

L101

224

6258

7N57

IDC

TR

, 220

nHL1

013

2462

587N

59ID

CT

R, 3

30nH

L101

424

6258

7N57

IDC

TR

, 220

nHL1

101

2462

587N

33ID

CT

R, 1

.8uH

L110

224

0838

3X07

IDC

TR

, 3.3

uHL1

103

2462

587N

33ID

CT

R, 1

.8uH

L110

424

8028

9M10

IDC

TR

, 6.8

uHL1

105

2480

289M

10ID

CT

R, 6

.8uH

L110

624

6258

7N33

IDC

TR

, 1.8

uHL1

107

2480

289M

09ID

CT

R, 5

.6uH

L110

8N

ot P

lace

dL1

109

Not

Pla

ced

L111

024

8028

9M18

IDC

TR

, 33u

HL1

111

2408

383X

07ID

CT

R, 3

.3uH

L111

224

8341

1T35

IDC

TR

, 6.8

uHL1

201

2480

289M

17ID

CT

R, 2

7uH

L120

224

6258

7Q20

IDC

TR

, 2.2

uHL1

204

Not

Pla

ced

L120

524

6258

7N59

IDC

TR

, 330

nHL1

206

2480

289M

17ID

CT

R, 2

7uH

L120

7N

ot P

lace

dL1

302

2408

382D

19ID

CT

R, 4

91nH

L130

324

8028

9M15

IDC

TR

, 18u

HL1

304

2462

587N

66ID

CT

R, 8

20nH

Cir

cuit

R

efM

oto

rola

P

art

No

.D

escr

ipti

on

L130

524

8028

9M15

IDC

TR

, 18u

HL1

306

2480

289M

15ID

CT

R, 1

8uH

L130

724

8028

9M15

IDC

TR

, 18u

HL1

309

2480

289M

15ID

CT

R, 1

8uH

L131

024

6258

7N60

IDC

TR

, 390

nHL1

311

2480

289M

15ID

CT

R, 1

8uH

L131

324

0838

2D19

IDC

TR

, 491

nHL1

314

2480

289M

17ID

CT

R, 2

7uH

L131

524

6258

7N66

IDC

TR

, 820

nHL1

316

2480

289M

17ID

CT

R, 2

7uH

L131

724

8028

9M17

IDC

TR

, 27u

HL1

318

2480

289M

17ID

CT

R, 2

7uH

L132

124

6258

7N58

IDC

TR

, 270

nHL1

322

2480

289M

17ID

CT

R, 2

7uH

L132

424

8028

9M17

IDC

TR

, 27u

HL1

401

Not

Pla

ced

L140

224

6258

7U09

IDC

TR

, 4.7

uHL1

403

2462

587U

09ID

CT

R, 4

.7uH

L140

424

6258

7N56

IDC

TR

, 180

nHL1

405

Not

Pla

ced

L140

624

0838

1X36

IDC

TR

, 250

.974

nHL1

408

2408

384A

10ID

CT

R, 1

20nH

L141

324

0838

1X17

IDC

TR

, 88.

470n

HL1

414

2408

381X

17ID

CT

R, 8

8.47

0nH

L141

524

6059

1X01

IDC

TR

, 18n

HL1

416

2460

591X

01ID

CT

R, 1

8nH

L141

724

6059

1X01

IDC

TR

, 18n

HL1

418

2408

381X

12ID

CT

R, 6

6.38

9nH

L141

924

8028

9M17

IDC

TR

, 27u

HL1

420

2408

381X

29ID

CT

R, 1

72.8

91nH

L142

124

0838

1X25

IDC

TR

, 137

.876

nHL1

422

2408

381X

22ID

CT

R, 1

15.5

81nH

L142

324

0838

1X16

IDC

TR

, 81.

930n

HL1

424

Not

Pla

ced

L142

524

6059

1X01

IDC

TR

, 18n

HL1

426

2460

591X

01ID

CT

R, 1

8nH

L160

124

8341

1T45

IDC

TR

, 47u

HL1

602

2483

411T

45ID

CT

R, 4

7uH

L160

324

8341

1T73

IDC

TR

, 1uH

L160

424

8341

1T45

IDC

TR

, 47u

HL1

605

2483

411T

41ID

CT

R, 2

2uH

L160

624

6258

7T30

IDC

TR

, 1uH

L160

724

6258

7T30

IDC

TR

, 1uH

M14

0126

8620

1B01

HE

AT

SIN

KQ

0110

4880

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01D

TC

144E

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8M01

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C14

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0171

4880

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01D

TC

144E

KA

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2M01

RX

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0177

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TC

144E

KA

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DT

C14

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Cir

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No

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Low

Ban

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Lis

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4880

214G

02M

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T39

04Q

0641

4880

048M

01D

TC

144E

KA

Q06

6148

0592

1T02

FM

C2A

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8021

4G02

MM

BT

3904

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8004

8M01

DT

C14

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4880

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BT

3906

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4A17

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BT

3906

Q11

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7A07

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BR

941

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3A05

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BF

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3A05

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BF

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1105

4880

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01D

TC

144E

KA

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7A07

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BR

941

Q11

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8021

4G02

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BT

3904

Q12

0148

1382

4A17

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BT

3906

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BR

951

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BF

U31

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1304

4880

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4884

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310

Q13

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BR

951

Q13

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BR

951

Q14

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8621

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MR

F15

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4886

136B

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RF

1550

Q14

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Not

Pla

ced

Q15

0148

8014

1L03

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W68

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1502

4880

214G

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1503

4880

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3904

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BT

3904

Q16

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4A17

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3906

Q16

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BT

3904

Q16

0948

1382

4A17

MM

BT

3906

Q16

1048

0558

5Q17

NE

2513

9R

0101

0662

057A

73R

ES

, 10K

R01

0206

6205

7A65

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R01

0306

6205

7A01

RE

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R01

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ced

Cir

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No

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Not

Pla

ced

R01

1306

6205

7A73

RE

S, 1

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0114

0662

057A

73R

ES

, 10K

R01

1506

6205

7A73

RE

S, 1

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0116

Not

Pla

ced

R01

1706

6205

7A63

RE

S, 3

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R01

2106

6205

7A97

RE

S, 1

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R01

3106

6205

7B46

RE

S, 1

0ME

GR

0132

0662

057B

10R

ES

, 330

KR

0151

0662

057A

82R

ES

, 24K

R01

5206

6205

7A82

RE

S, 2

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0170

0662

057A

73R

ES

, 10K

R01

7106

6205

7A65

RE

S, 4

.7K

R01

7206

6205

7A73

RE

S, 1

0KR

0173

0662

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65R

ES

, 4.7

KR

0174

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057A

73R

ES

, 10K

R01

7506

6205

7A73

RE

S, 1

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0176

0662

057A

84R

ES

, 30K

R01

7706

6205

7A65

RE

S, 4

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R01

7806

6205

7A89

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S, 4

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, 47K

R01

8106

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7A65

RE

S, 4

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R01

8206

6205

7A89

RE

S, 4

7KR

0183

0662

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65R

ES

, 4.7

KR

0184

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89R

ES

, 47K

R01

8506

6205

7A65

RE

S, 4

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R01

8606

6205

7A89

RE

S, 4

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0201

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25R

ES

, 100

R02

0206

6205

7A43

RE

S, 5

60R

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25R

ES

, 100

R02

0406

6205

7A43

RE

S, 5

60R

0205

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73R

ES

, 10K

R02

0606

6205

7A73

RE

S, 1

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0207

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57R

ES

, 2.2

KR

0208

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57R

ES

, 2.2

KR

0211

0660

076E

70R

ES

, 7.5

KR

0212

0660

076E

70R

ES

, 7.5

KR

0220

Not

Pla

ced

R02

2106

6205

7A82

RE

S, 2

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0222

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057A

82R

ES

, 24K

R02

2306

6205

7A84

RE

S, 3

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0224

0662

057A

71R

ES

, 8.2

KR

0225

Not

Pla

ced

R02

26N

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lace

dR

0227

Not

Pla

ced

R02

2806

6205

7B47

RE

S, 0

R02

2906

6205

7A01

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S, 1

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, 47K

Cir

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P

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No

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R02

4206

6205

7B47

RE

S, 0

R02

5106

6205

7A89

RE

S, 4

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0252

0662

057A

91R

ES

, 56K

R02

5306

6205

7A97

RE

S, 1

00K

R02

5406

6205

7A73

RE

S, 1

0KR

0255

0662

057A

73R

ES

, 10K

R02

5606

6205

7A97

RE

S, 1

00K

R02

5706

6205

7A57

RE

S, 2

.2K

R02

6106

6205

7A73

RE

S, 1

0KR

0262

0662

057B

08R

ES

, 270

KR

0265

0662

057A

82R

ES

, 24K

R02

66N

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lace

dR

0267

0662

057A

89R

ES

, 47K

R02

6806

6205

7A73

RE

S, 1

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0269

0662

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41R

ES

, 470

R02

7306

6205

7A82

RE

S, 2

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0274

Not

Pla

ced

R02

7506

6205

7A73

RE

S, 1

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0276

0662

057A

77R

ES

, 15K

R03

23N

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dR

0324

Not

Pla

ced

R03

31N

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lace

dR

0332

Not

Pla

ced

R03

33N

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lace

dR

0335

Not

Pla

ced

R03

41N

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lace

dR

0342

Not

Pla

ced

R03

43N

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lace

dR

0344

Not

Pla

ced

R03

45N

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lace

dR

0346

Not

Pla

ced

R03

47N

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lace

dR

0401

0662

057A

33R

ES

, 220

R04

0706

6205

7M26

RE

S, 1

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0408

0662

057A

25R

ES

, 100

R04

0906

6205

7M26

RE

S, 1

0R

0412

0662

057B

47R

ES

, 0R

0441

0662

057B

47R

ES

, 0R

0442

0662

057A

49R

ES

, 1K

R04

6706

6205

7M26

RE

S, 1

0R

0468

0662

057A

97R

ES

, 100

KR

0481

0662

057B

47R

ES

, 0R

0482

0662

057B

47R

ES

, 0R

0508

0662

057A

41R

ES

, 470

R05

0906

6205

7B47

RE

S, 0

R05

1006

6205

7A65

RE

S, 4

.7K

R05

1106

6205

7A97

RE

S, 1

00K

R05

1206

6205

7A77

RE

S, 1

5KR

0525

0662

057A

97R

ES

, 100

KR

0529

0662

057A

89R

ES

, 47K

R05

3006

6205

7A81

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Cir

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No

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R05

3106

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7A43

RE

S, 5

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0533

0662

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47R

ES

, 0R

0535

0662

057A

49R

ES

, 1K

R05

3706

6205

7A33

RE

S, 2

20R

0538

0662

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33R

ES

, 220

R05

3906

6205

7A65

RE

S, 4

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R05

4106

6205

7A83

RE

S, 2

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0542

Not

Pla

ced

R05

4306

6205

7A97

RE

S, 1

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R05

5506

6205

7A25

RE

S, 1

00R

0556

0662

057A

25R

ES

, 100

R05

9106

6205

7A82

RE

S, 2

4KR

0592

0662

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01R

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, 10

R05

9306

6205

7A97

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S, 1

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R06

1106

6205

7A91

RE

S, 5

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0612

0662

057A

65R

ES

, 4.7

KR

0621

0662

057A

82R

ES

, 24K

R06

4106

6205

7A73

RE

S, 1

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0642

0660

076E

70R

ES

, 7.5

KR

0643

0660

076E

51R

ES

, 1.2

KR

0651

0662

057A

01R

ES

, 10

R06

5206

6205

7A01

RE

S, 1

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0661

0662

057A

49R

ES

, 1K

R06

6206

6205

7B02

RE

S, 1

50K

R06

7106

6205

7A84

RE

S, 3

0KR

0672

0662

057A

73R

ES

, 10K

R06

8106

6205

7A79

RE

S, 1

8KR

0682

0662

057A

93R

ES

, 68K

R10

0106

6205

7A05

RE

S, 1

5R

1002

0662

057A

05R

ES

, 15

R10

0306

6205

7A41

RE

S, 4

70R

1004

0662

057A

59R

ES

, 2.7

KR

1005

0662

057A

31R

ES

, 180

R10

0606

6205

7A73

RE

S, 1

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1007

0662

057A

71R

ES

, 8.2

KR

1008

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057A

65R

ES

, 4.7

KR

1009

Not

Pla

ced

R10

10N

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lace

dR

1011

Not

Pla

ced

R11

0106

6205

7A18

RE

S, 5

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1102

0662

057A

78R

ES

, 16K

R11

0306

6205

7A39

RE

S, 3

90R

1104

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057A

71R

ES

, 8.2

KR

1106

0662

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25R

ES

, 100

R11

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6205

7A68

RE

S, 6

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R11

0806

6205

7A61

RE

S, 3

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R11

0906

6205

7A37

RE

S, 3

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ES

, 100

R11

1106

6205

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RE

S, 4

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64R

ES

, 4.3

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1114

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, 4.3

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No

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Ban

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R11

1506

6205

7A75

RE

S, 1

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1116

Not

Pla

ced

R11

1706

6205

7A37

RE

S, 3

30R

1118

0662

057A

56R

ES

, 2K

R11

1906

6205

7A83

RE

S, 2

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1120

0662

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ES

, 51

R11

2106

6205

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RE

S, 8

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R11

2206

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1123

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057A

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, 1.2

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Pla

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R11

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Not

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ced

R11

27N

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, 10K

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2906

6205

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S, 1

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1130

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, 10K

R11

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ES

, 2.4

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1133

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, 3.3

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, 15

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, 680

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, 10

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, 390

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, 150

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, 0R

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, 680

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Not

Pla

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, 3.3

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, 220

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, 680

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, 47

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, 22

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, 470

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GM338Mobile Radios

VHF 45W Bipolar (136-174MHz)

Service Information


i

Table of Contents




1.0 Introduction ..........................................................................................................2-12.0 VHF (136-174 MHz) Receiver..............................................................................2-1

2.1 Receiver Front-End ........................................................................................2-12.2 Front-End Band-Pass Filters & Pre-Amplifier .................................................2-22.3 First Mixer and 1st Intermediate Frequency (IF) ............................................2-22.4 2nd Intermediate Frequency (IF) and Receiver Back End .............................2-3

3.0 Transmitter Power Amplifier (PA) 45 W...............................................................2-33.1 Power Controlled Stage..................................................................................2-43.2 Pre Driver Stage .............................................................................................2-43.3 Driver Stage....................................................................................................2-43.4 Final Stage .....................................................................................................2-43.5 Directional Coupler .........................................................................................2-43.6 Antenna Switch...............................................................................................2-53.7 Harmonic Filter ...............................................................................................2-53.8 Power Control.................................................................................................2-5

4.0 Frequency Synthesis ...........................................................................................2-64.1 Reference Oscillator .......................................................................................2-64.2 Fractional-N Synthesizer ................................................................................2-64.3 Voltage Controlled Oscillator (VCO)...............................................................2-74.4 Synthesizer Operation ....................................................................................2-8



ii

Section 4 VHF PCB/Schematics/Parts List


2.0 VHF 25-45W PCB / Schematics / Parts List ........................................................4-3VHF (136-174 MHz) 25-45W 8486140B13 Top Side .............................................4-3VHF (136-174 MHz) 25-45W 8486140B13 Bottom Side.......................................4-4VHF (136-174 MHz) Power Amplifier 25-45W........................................................4-5VHF (136-174 MHz) FRACN..................................................................................4-6VHF (136-174 MHz) Voltage Controlled Oscillator.................................................4-7VHF (136-174 MHz) Receiver Front End ...............................................................4-8VHF (136-174 MHz) IF ...........................................................................................4-9VHF PCB 8486140B13 Parts List 25-45W...........................................................4-10

1-1

Section 1





GM Series, VHF 136-174 MHzModel Description

AZM25KKF9AA5 GM338 136-174 MHz 25-45W

Item Description


X IMUD6011_ Tanapa WM 136-174 MHz 25-45W

X RAD4198_ BNC 136-144 MHz, 1/4 Wave Roof Mount

X RAD4199_ BNC 146-150.8 MHz, 1/4 Wave Roof Mount

X RAD4200_ BNC 150.8-162 MHz, 1/4 Wave Roof Mount

X RAD4201_ BNC 162-174 MHz, 1/4 Wave Roof Mount

X RAD4202_ BNC 146-172 MHz, 3dB Gain Roof Mount






Dimensions: H x W x D (mm) Depth excluding knobs GM33859mm x 179mm x 198mm (25 - 45W)(add 9mm for Volume Knob)

Weight GM338 1400 g






Transmitter VHF




±2.5 ppm

Power 25-45W



-45 dB @ 20/25kHz





<3% typical

Receiver VHF




Intermodulation (ETS) >65 dB



80 dB @ 20/25 kHz


7.5W External13W External



-45 dB @ 20/25 kHz


+1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the VHF circuits in the radio. For details of the theory of operation and troubleshooting for the the associated Controller circuits refer to the Controller Section of this manual.

2.0 VHF (136-174 MHz) Receiver


The receiver is able to cover the VHF range from 136 to 174 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, 1st IF, 2nd IF, and receiver back-end. Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. High-side injection is used..

Figure 2-1 VHF Receiver Block Diagram

Demodulator

1. Crystal Filter

MixerVaractor Tuned FilterRF AmpVaractor

Tuned Filter



from FGU

Recovered Audio

RSSI

IF

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


2-2 VHF (136-174 MHz) Receiver

There are two 2-pole 44.85 MHz crystal filters in the 1st IF section and 2 pairs of 455 kHz ceramic filters in the 2nd IF section to provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25kHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.


The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C3001, C3002, D3001 and associated components). The 2-pole pre-selector filter tuned by the dual varactor diode D3001 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U3501) in the Transmitter section. A dual hot carrier diode (D3003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is a surface mount device (SMD) Q3001 with collector-base feedback to stabilize gain, impedance, and intermodulation. Transistor Q3002 compares the voltage drop across resistor R3002 with a fixed base voltage from divider R3011, R3000 and R3012, and adjusts the base current of Q3001 as necessary to maintain its collector current constant at approximately 15-20 mA. Operating voltage is from the regulated 9.3V supply (9V3). During transmit, 9.1 volts (K9V1) turns off both transistors Q3002 and Q3001. This protects the RF pre-amplifier from excessive dissipation during transmit mode. A following 3dB pad (R3006 – R3008 and R3016 – R3018) stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. The dual varactor diode D3004 is controlled by the same signal FECTRL_1, which controls the pre-selector filter.

2.3 First Mixer and 1st Intermediate Frequency (IF)

The signal coming from the front-end is converted to the 1st IF frequency of 44.85 MHz using a cross over quad diode mixer (D3031). Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using high side injection. The high-side injection signal (RXINJ) from the frequency synthesizer circuit has a level of approximately +13 dBm and is injected via matching transformer T3002.

The IF output signal (IF) from transformer T3001 pin 2 is fed to the first 2- pole crystal filter FL3101. The filter output in turn is matched to IF amplifier Q3101 which is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the 5 volt supply. Its output impedance is matched to the second 2-pole crystal filter FL3102. The signal is further amplified by a preamplifier (Q3102) before going into pin 1 of IFIC (U3101).



2.4 2nd Intermediate Frequency (IF) and Receiver Back End

The 44.85 MHz 1st IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC, the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the 2nd IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The 2nd IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters FL3112, FL3114 for 20/25 kHz channel spacing or FL3111, FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3101 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101, pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101, pin 63) and in addition is available at accessory connector J0501-15.


The radio’s 45 W PA is a four-stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. The line-up consists of three stages which utilize LDMOS technology, followed by a final stage using a bipolar device. The gain of the first stage (U3401) is adjustable, controlled by pin 4 of PCIC (U3501) via Q3501 and Q3502 (VCONT). It is followed by an LDMOS pre-driver stage (Q3421), an LDMOS driver stage (Q3431) and a bipolar final stage (Q3441).

Figure 2-2 VHF Transmitter Block Diagram

Devices U3401 and Q3421 are surface mounted. The remaining devices are directly attached to the heat sink.

Antenna

To Microprocessor

PCIC


Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

PreDriver



The first stage (U3401) is a 20 dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U3401 is controlled by a dc voltage applied to pin 1 from the power control circuit (U3501 pin 4, with transistors Q3501 and Q3502 providing current gain and level-shifting). The control voltage simultaneously varies the bias of two FET stages within U3401. This biasing point determines the overall gain of U3401 and therefore its output drive level to Q3421, which in turn controls the output power of the PA.

In receive mode the voltage control line is at ground level and turns off Q3501-2, which in turn switches off the biasing voltage to U3401.

3.2 Pre Driver Stage

The next stage is an LDMOS device (Q3421) providing a gain of +13 dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line PCIC_MOSBIAS_1 is set during transmit mode by the PCIC pin 24, and fed to the gate of Q3421 via the resistive network R3410, R3415, and R3416. The bias voltage is factory tuned.

3.3 Driver Stage

The following stage is an enhancement-mode N-Channel MOSFET device (Q3431) providing a gain of 10 dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 is set in transmit mode by the ASFIC and fed to the gate of Q3431 via the resistive network R3404, R3406, and R3431-5. This bias voltage is also tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s dc supply voltage input, PASUPVLTG, via L3431 and L3432.

3.4 Final Stage

The final stage uses bipolar device Q3441. The device’s collector current is also drawn from the radio’s dc supply voltage input. To maintain class C operation, the base is dc-grounded by a series inductor (L3441) and a bead (L3442). A matching network consisting of C3446-52, C3467, L3444-5, and two striplines, transforms the impedance to approximately 50 ohms and feeds the directional coupler.


The directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reflected power delivered by Q3441. The coupled signals are rectified by D3451-2 and combined by R3463-4. The resulting dc voltage is proportional to RF output power and feeds the RFIN port of the PCIC (U3501, pin 1). The PCIC controls the gain of stage U3401 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

An abnormally high reflected power level, such as may be caused by a damaged antenna, also causes the dc voltage applied to the PCIC to increase, and this will cause a reduction in the gain of U3401, reducing transmitter output power to prevent damage to the final device due to an improper load.


3.6 Antenna Switch

The antenna switch consists of two PIN diodes, D3471 and D3472. In the receive mode, both diodes are off. Signals applied at the antenna jack J3401 are routed, via the harmonic filter, through network L3472, C3474 and C3475, to the receiver input. In the transmit mode, the keyed 9 volts turns on Q3471 which enables current sink Q3472, set to 96 mA by R3473 and VR3471. This completes a dc path from PASUPVLTG, through L3473, D3471, L3477, L3472, D3472, L3471, R3474 and the current sink, to ground. Both diodes are forward biased into conduction. The transmitter RF from the directional coupler is routed via D3471 to the harmonic filter and antenna jack. D3472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L3472 is selected to appear as a broadband guarter-wave transmission line, making the short circuit presented by D3472 appear as an open circuit at the junction of D3472 and the receiver path.

3.7 Harmonic Filter

Components L3491-L3494 and C3490-C3498 form a nine-pole Chebychev low-pass filter to attenuate harmonic energy of the transmitter. R3490 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.8 Power Control

The transmitter uses the power control IC (PCIC, U3501) to control the power output of the radio. A portion of the forward and reflected RF power from the transmitter is sampled by the directional coupler, rectified and summed, to provide a dc voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power.

The ASFIC contains a digital to analog converter (DAC) which provides a reference voltage of the control loop to the PCIC via R3517. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuit.

The PCIC provides a dc output voltage at pin 4 (INT) which is amplified and shifted in dc level by stages Q3501 and Q3502. The 0 to 4 Vdc range at U1503, pin 4 is translated to a 0 to 8.5 Vdc range at the output of Q3501, and applied as VCONT to the power-adjust input pin of the first transmitter stage U3401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the dc voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.


U3502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the dc voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced so as to reduce the transmitter temperature.



The frequency synthesizer subsystem consists of the reference oscillator (Y3261 or Y3262), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U3201), and the voltage-controlled oscillators and buffer amplifiers (U3301, Q3301-2 and associated circuits).


The reference oscillator (Y3262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An analog-to-digital (A/D) converter internal to U3201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U3201 (pin 25) to set the frequency of the oscillator. The output of the oscillator (U3262 pin 3) is applied to pin 23 (XTAL1) of U3201 via R3263 and C3235.

In applications were less frequency stability is required, the oscillator inside U3201 is used along with an external crystal Y3261, varactor diode D3261, C3261, C3262 and R3262. In this case, Y3262, R3263, C3235 and C3251 are not used. When Y3262 is used, Y3261, D3261, C3261, C3262 and R3262 are not used, and C3263 is increased to 0.1 uF.


The LVFRAC-N synthesizer IC (U3201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balance attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13 volt positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

Figure 2-3 VHF Synthesizer Block Diagram

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U3211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U3211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2

TRB


LO RF INJECTION


LINE2-POLELOOP

FILTER

1


A voltage of 5V applied to the super filter input (U3201 pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R3363) and the synthesizer charge pump resistor network (R3251, R3252). The synthesizer supply voltage is provided by the 5V regulator U3211.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U3201-47), a voltage of 13 Vdc is being generated by the positive voltage multiplier circuits (D3201, C3202, C3203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase signals (U3201-14 and -15).


The serial interface (SRL) is connected to the µP via the data line DATA (U3201-7), clock line CLK (U3201-8), and chip enable line CSX (U3201-9).


The Voltage Controlled Oscillator (VCO) consists of the VCO/Buffer IC (VCOBIC, U3301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuits.

Figure 2-4 VHF VCO Block Diagram

Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U3211 Pin1)

VCC Buffers

TX RF Injection

U3201 Pin 32

AUX3 (U3201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20


U3301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U3201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U3211 Pin1)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q3304

Q3301


The VCOBIC together with the Fractional-N synthesizer (U3201) generates the required frequencies in both the transmit and receive modes. The TRB line (U3301, pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables the TX tank and TX output (pin 10), and a low enables the RX tank and RX output (pin 8). A sample of the signal from the enabled RF output is routed from U3301, pin 12 (PRESC_OUT), via a low pass filter, to U3201, pin 32 (PREIN).

A steering line voltage (VCTRL) between 2.5 volts and 11 volts at varactor diode D3361 tune the full TX frequency range (TXINJ) from 136 MHz to 174 MHz, and varactor diode D3341 tunes the full RX frequency range (RXINJ) from 181 MHz to 219 MHz. The RX tank circuit uses a Hartley configuration for wider bandwidth. For the RX tank circuit, an external transistor Q3304 is used for better side-band noise.

The external RX buffers (Q3301 and Q3302) are enabled by a high at U3301, pin 7 (RX_SWITCH) via transistor switch Q3303. In the TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U3201 pin 41) is applied to varactor diode D3362, which modulates the TX VCO frequency via capacitor C3362. Varactor D3362 is biased for linearity from the VSF.


The complete synthesizer subsystem consists of the low voltage FRAC-N (LVFRACN), reference oscillator (a crystal oscillator with temperature compensation), charge pump circuit, loop filter circuit and a dc supply. The output signal PRESC from the VCOBIC (U3301 pin 12) is fed to U3201 pin 32 (PREIN) via a low pass filter (C3318, L3318 and C3226) which attenuates harmonics and provides the correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U3201) is a dual modulus type with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal. The reference signal is generated by dividing down the signal of reference oscillator Y3261 or Y3262.

The output signal of the phase detector is a pulsed dc signal which is routed to the charge pump. The charge pump outputs a current at U3201 pin 43 (IOUT). The loop filter (which consists of R3221-R3223 and C3221-C3224) transforms this current into a voltage that is applied to the varactor diodes (D3361 for transmit, D3341 for receive) to alter the output frequency of the appropriate VCO. The current can be set to a value fixed within the LVFRAC-N IC, or to a value determined by the currents flowing into BIAS 1 (U3201-40) or BIAS 2 (U3201-39). The currents are set by the value of R3251 and R3252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT pin (U3201-45) for a certain software programmable time (adapt mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1 and BIAS 2, or by the internal current source. A settled synthesizer loop is indicated by a high level signal at U3201-4 (LOCK).

The LOCK signal is routed to one of the µP´s ADC inputs (U0101-56). From the measured voltage, the µP determines whether LOCK is active.

To modulate the PLL, the two spot modulation method is utilized. Via U3201, pin 10 (MODIN), the audio signal is applied to both the A/D converter (low frequency path) as well as the balance attenuator (high frequency path). The A/D converter changes the low frequency analog modulating signal into a digital code that is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U3201-41) and connected to the VCO modulation diode D3362 via R3364.

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages OK?



IF Signal at C3035?

No

RF Signal at T3001?

RF Signal at C3012?

No

RF Signal at C3008?

No

RF Signal at C3474?

No or

Check Harmonic Filter J3401 and

Antenna Switch D3471,D3472,L3472

Check filter between C3474 & C3008. Check tuning

voltage at R3019


Is tuning voltage OK?

No

Yes

Check RF amp (Q3001) Stage

Check filter between C3012 & T3001

Yes

Check T3001, T3002, D3031, R3030-R3034,

L3032, C3034 and C3035

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes


Check for bad XTAL filter

No

YesIF signal at Q3102

collector?


U3101 voltages

Yes

Check for 5VDC

Is 9V3 present?


U3211 and U0641

No

No

No

Check U3501

Check varactor filter

No

Yes

Yes

Yes

A

A

B

weak RF



Current in-crease when

keyed?

NO

YES

START


Check Components between Q3441 and RF Output, Antenna

Switch D3471,D3472

>500mA & <5A>5A

<500mA

Check PA Stages

Control Voltage at TP3402

>1V

>1V

<1VCheck

Voltage at PCIC U3501

Pin 4

Check Components between TP3402 and

U3501 Pin 4

Short TP3403to Ground

NO

YES

Voltage at TP3402 ris-

es?Check PA Stages NO

YES


DC?


NO

YES


DC

Replace PCICU3501

NO

YES

TP3404 9.1V DC



FGU

YES NOTP3403 >0.5V DC?

Replace PCIC U3501Check Forward & Reverse

Power Sense Circuitry (D3451 & D3452)

Check Forward & Reverse Power Sense Circuitry

(D3451 & D3452)

NO

YES


DC?

Check Power Setting, Tuning & Components between PCIC Pin 5

and ASFIC (U0221) Pin 4 before replacing AS-

FIC




Pin 1?

NO

YES

Check PA Stages


NO

YES

Replace U3401


Pin 1?

2-4V

Supply0V Bias 1 DC

Voltage at TP3406?

NO

YES PCIC U3501 Pin 24 2-4V

DC?

Check Bias Tuning be-fore replacing PCIC U3501

Check Voltage at Pin 2 & 3 of U3401

Replace U3401

Replace Q3421

NO

0V

1-4V


YES


YES


>3V?

Replace Q3421

Supply

Replace Q3431

Check FGU (U3301)

NO Check Components between TP3401 &

C3417NO

YES ASFIC U0221 Pin 6

1-4V DC?

Check Bias Tuning be-fore replacing ASFIC U0221


Q3431 before re-placing Q3431

YES


>1V?

NO Check Components between C3417 &

Q3421

YES RF Voltage Q3431 Gate

>4V?

NO Check Components between Q3421 &

Q3431

YES

RF Voltage Q3441 Base

>5V?

Check Components between Q3431 &

Q3441

NO

Check Components between Q3441 & An-

tenna Connector

Voltage

Voltage

Troubleshooting Flow Chart for Synthesizer 3-5


+5V at U3201 Pins

13 & 30?

5V at pin 6 of

D3201


correct?

Is U3201 Pin 47

= 13VDC ?

Is U3301 Pin 19<40 mVDC in RX &>4.5 VDC in TX? (at VCO section)

Start


CorrectProblem

Check 5VRegulator

U3211

Is 16.8MHzSignal at

U3201 Pin 19?

CheckY3261, Y3263 and associated parts

Are signalsat Pins 14 &

15 of U3201?

Check R3201

Check C3319Is U3201 pin 2

>4.5 VDC in Tx & <40 mVDC in Rx

Replace U3201

RemoveShorts


Pins 14 & 15 ofU3201?

Replace or resoldernecessary components


dBm?

Are R3221,

R3222, R3223, C3221, C3222,

& C3224 OK?

Replace U3201

If R3227, C3226 & C3227are OK, then see VCOtroubleshooting chart


triangular?

Do Pins 7,8 & 9 of

U3201 togglewhen channel is

changed?


and U3201 Pins 7,8 & 9

Replace U3201


Chart

No

Yes

No

Yes

No

Yes

No

No

No

Yes

Yes

No

Yes

Yes

No

Yes

Yes

Yes

No

No

No

No

Yes

No

Yes

Yes

Check D3201, C3202, C3203, C3205 & C3206

5V at U3201 pins 5, 20, 34 & 36

Check 5V Regulator

U3211, R3211


U3201 pin 23?

Replace U3201

Yes

No

No

Yes

No

Yes










OK?


NO

YES

at base of Q3301

NO

NO

NO

NO

NO

YES

YES

YES

YES

YES


5V DC at U3301Pin 14 & 18 OK ?


Is RF available at TP3401

YES

YES

YES

YES

YES

NO

NO

NO

NO

NO

Audio =180mVrmsat “-” side of

D3362

2.5VDCat D3362

If C3362 and R3363 are OK, then replace D3362

Replace R3363

Replace R3364

NO

NO

YES

YES

If R3402 and C3315 are OK,replace U3301

TX VCORX VCO

CorrectProblem


OK?

Make sure U3211 is working correctly and runner

between U3211 Pin 1 and U3301 Pin 14 & 18 is OK


and U3301 Pin 19


replace U3301


replace Q3301

Check parts between T3001 and Q3301 Power OK but

no modulation

If all parts from TP3401 of U3401 Pin 16 are OK,

replace U3401



replace U3301

4.5V DC atU3301 Pin 3 OK?

YES

NO 4.5V DC atU3301 Pin 3 OK?

YES

NOMake sure Synthesizer is

working correctly and runner between U3201 Pin 28 and

U4301 Pin 3 is OK

5V DC at U3301Pin 14 & 18 OK ?

OK? OK?


replace Q3301

4-1

Section 4

VHF PCB/SCHEMATICS/PARTS LIST



The VHF circuits are contained on the Printed Circuit Board (PCB) which also contains the Controller circuits. This Chapter shows the schematics for the VHF circuits only, refer to the Controller section for details of the related Controller circuits . The PCB component layouts and the Parts Lists in this Chapter show both the Controller and VHF circuit components. The VHF schematics and the related PCB and parts list are shown in the tables below.



Page 4-3Page 4-4




VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

3

2.0

VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

C01

01C

0102

C01

04

C01

06

C01

07

C01

08

C01

31

C01

32

C02

11

C02

12

C0221

C0222

C02

23C02

24

C02

25

C02

26

C02

27

C0228

C02

31

C02

32

C02

33

C02

34C02

35

C02

36

C0237

C02

41 C02

42

C02

43

C02

44

C02

45

C02

46

C02

51

C02

52

C02

53

C02

56

C0261

C02

62

C0421

C0441

C0442

C0443

C0445C0446

C0447

C0448C0449C0470

C0471

C0472

C0473C0474

C0476

C0477

C0478

C0482C0483

C04

84

C04

86C04

87

C0488

C0490

C0493

C0494

C0495

C04

96

C0501C0502C0503C0504C0505C0506C0508

C0509

C0510

C0511

C0512

C0513C0514

C0515C0516

C0517C0518

C05

42

C06

01

C06

03

C06

12

C06

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uFC

3415

FE

CN

TL_

2

Q35

02

D34

55

FE

CN

TL_

1

R34

71

NU

470

2200

pF

C34

28

C34

2622

00pF

C34

251u

F

100

R34

16R

3415

100

82pF

C34

20

20R

3419

82pF

C34

41

C34

32

C35

0622

00pF

1000

pFL3

432

36.5

4nH

1KR35

03

C34

1824

pF

C34

17

2200

pF

1000

pF

L342

312

.77n

H

C34

5556

pF

C34

06

MO

SB

IAS

_2

R34

62

39K

2200

pFC

3435

R34

6315

K

2V

OU

T

C34

1222

00pF

LM50

U35

023GN

D

PO

S

CLK

0R

3460

5.6K

R34

12

6.8K

R34

11

100

R34

05N

U

CN

TLV

LTG

TX

INJ_

VH

F_P

A_1

TP

3501

R35

0868

0

R35

17R

3505

680

100K

R34

04

10K

82pF

C34

67

R34

3612

0

18 VAR2

24 VAR3

VG

15

6

VL19 VLIM

18pF

C34

75

31R

SE

T23 RX

2

T1

30T

EM

P

14V

10

16V

45

17 V5EXT

20 VAR1

8

GND1

25G

ND

2

4

INT22 NA

11Q

10Q

X

1

RFIN

21 RS

3

CI

5

CJ

7

CL

26C

LK

12C

QC

QX

1328

DA

TA

9F

168

U35

01

32A

NO

27B

PO

S29

CE

X

43

H99

S-4

33pF

R34

02

NU

C34

03

6

RF

OU

T2

7V

CN

TR

L1

VD

114

2V

G1

VG

23

C34

0122

00pF

GND3 12GND4 13

NC

18

NC

29

NC

310

NC

415

RF

IN16

RF

OU

T1

U34

01

G2

11

GND1 4GND2 5

L343

157

R01

C35

0422

00pF

C34

400.

1uF

2200

pFC

3503

C35

0710

0pF

.01u

F

C34

24

R34

9047

K

1000

pF

C34

4510

00pF

620

C34

56

R35

16

R35

13

620

R34

58

1000

pFC

3465

12nH

NU0

2200

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L347

4

FE

CN

TL_

2_V

HF

_PA

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C34

04

FE

CN

TL_

1_V

HF

_PA

_1

620

RE

SE

T_V

HF

_PA

_1

TE

MP

SE

NS

E_C

NT

LR_1

R35

14

2200

pF

C34

00

L340

1

1K

39nH

C34

58

R35

04

C34

9036

pF

.01u

F

C34

36

0R34

64

10uF

TP

3406

PA

SU

PV

LTG

RT

3460

50K

220K

R34

65

C35

0122

00pF

C34

74

1000

pF

33nH

L341

2

L349

4

51nH

L344

257

R01

1000

pF

TP

3407

C34

05

L344

5

18nH

68pF

C34

52

TP

3403

.01u

FC

3421

TP

3401

56

PA

_PW

R_S

ET

R34

33

100p

FC

3459

R34

0313

0

0.1u

FC

3437

20pF

C34

9743

pFC

3496

NU

R34

7743

33nH

L344

4

C35

08

RX

IN_V

HF

_PA

_1

150K

R34

06

2200

pF

9V3

9V3

A+

9V3

PC

IC_M

OS

BIA

S_1

PC

IC_M

OS

BIA

S_1

9V3

VC

ON

T

9V3

VC

ON

T

9V3

NC

9V3

9V3

A+

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

ZW

G01

3051

2-O

VH

F (

136-

174

MH

z) P

ow

er A

mp

lifie

r 25

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4-6

VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

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C5V

DC

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C

(SO

UR

CE

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Bm

13.3

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C6.

83V

DC

4.52

VD

C (

R)

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Bm

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C (

R)

4.95

VD

C (

R)

2.90

VD

C3.

42V

DC

3.63

VD

C

2.5V

DC

1.1-

4.1V

DC

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C (

T)

2.62

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C (

T)

4.91

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C (

T)

Tem

p.C

omp.

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l

Ref

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.

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C

4.97

VD

C

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DC

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LOC

KE

D)

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UN

LOC

KE

D)

R32

03

A1

5A

2

4A

3

K1

1K

22

K3

3

47

D32

01

6

47K

NU

TR

BL3

232

2.2u

HN

U

R32

28

C32

31

C32

25

.01u

F

L320

139

0nH

0.1u

F

C32

02.0

1uF

100

R32

23

C32

29

D32

21

0.1u

F

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uF

CLK

C32

51

C32

07

22pF

NU

47K

VC

OB

IAS

_2

R32

25

C32

268.

2pF

MO

DIN

_VH

F_F

N_1

TP

3201

R32

52

VC

OB

IAS

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HF

_FN

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330K

16_8

MH

z_V

HF

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PR

ES

C_V

HF

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R32

420

100

R32

41

VS

F_V

HF

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DA

TA

VC

OM

OD

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F_F

N_1

CS

X_V

HF

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100p

F

C32

27

22pF NU

CS

X

IN_5

V_R

F_R

EG

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F_F

N_1

C32

40

NU

1G

ND

4G

ND

1

3O

UT

6IN

16.8

MH

z75

Z04

Y32

61

100K

R32

27

0.1u

FC

3254

C32

08

0.1u

F

NU

.01u

FC

3232

47K

R32

26

PR

ES

C

C32

142.

2uF

C32

210.

1uF

1uF

C32

24

C32

630.

1uF

VM

ULT

11514

VM

ULT

212

VM

ULT

311

VM

ULT

4 VRO 13

25

WA

RP

23X

TA

L1X

TA

L224

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

47

VC

P

31N

C3

44PD_GND

PD_VDD 5

PR

EIN

32


35P

VR

EF

18R

EF

SE

L45

IAD

AP

T

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN41

MO

DO

UT

17N

C1

29N

C2

39B

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2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6 36DVDD

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RE

FO

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46A

DA

PT

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22 AGND

48A

UX

1

1A

UX

22

AU

X3

3A

UX

4

20AVDD

40B

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1

VC

OB

IAS

_1

63A

27

U32

01

47

R32

01

VS

F

C32

22

0

R32

11

0.1u

F

L323

1

0.1u

FC

3211

TP

3202

2.2u

H

C32

4322

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16_8

MH

z

VD

DA

VD

DA

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F_F

N_1

VC

OB

IAS

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HF

_FN

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0.1u

FC

3209

C32

4622

0pF

NU

C32

0610

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5V_V

HF

_FN

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150K

R32

06

Q32

21

R32

5118

0K

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F

C32

280.

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C32

35

2.2u

FC

3210

VC

TR

L_V

HF

_FN

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R32

04

LOC

K_V

HF

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47

1uF

C32

23

NU

220p

F

R32

62 NU

C32

45

BW

SE

LEC

T

6.2K

C32

15

R32

24

47K

C32

13

2.2u

F

1G

ND

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2N

R

4O

UT

3S

D

2.2u

F

VCC

4

VC

NT

L

1

AD

P33

00U

3211

6E

RR

Y32

63

TT

S05

V16

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Hz

GND

2

OU

T 3

MO

DIN

VC

TR

L

C32

55

DA

TA

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F_F

N_1

220p

FC

3242

2.2u

F

5V_V

HF

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F

R32

2268

0

TR

B_V

HF

_FN

_1

C32

05

C32

6233

0pF

NU

NU

VC

OM

OD

C32

4156

pF

R32

6147

K

2.2u

FC

3233

R32

21

CLK

_VH

F_F

N_1

C32

52

390

1000

pF

.01u

FC

3234

C32

534.

7uF

NU

IN_5

V_R

F_R

EG

5V

D32

61C

3261

NU

LOC

K

C32

44

39pF

BW

SE

LEC

T_V

HF

_FN

_1

220p

F

C32

03

4,7k

.01u

F

NC

5V

5V

R32

63

NC

NC

NC

NC

NC

NCNC

NC

NC

NC

VD

DA

VD

DA

NC

NC

NC

.022

uFC

3212

R32

0210

ME

G

NU

10pF

C32

47

In c

ase

Y32

61 is

use

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Y32

63,

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f the

follo

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req

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s

new

tem

pera

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com

pens

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n of

the

freq

uenc

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Y32

61, U

3201

, R32

61, R

3262

, C32

62, D

3261

ZW

G01

3056

4-O

(*)

(*)

(*)

(*)

(*)

(*)

(*)

(*)

(*)

0662

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PLA

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DN

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PLA

CE

D

NO

TP

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4805

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04

39pF

330p

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47K

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PLA

CE

D48

8618

2B01

C32

62N

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PLA

CE

D

100n

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100n

F

47K

100

NO

TP

LAC

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NO

TP

LAC

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NO

TP

LAC

ED

NO

TP

LAC

ED

NO

TP

LAC

ED

2113

740L

37

2113

740F

0721

1374

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4880

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TP

LAC

ED

2113

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4121

1374

0F63

NO

TP

LAC

ED

4862

824C

03

Ref

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emp.

Com

p. o

rg.

Ref

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C32

35C

3251

C32

61

C32

63

2113

741F

4910

nF21

1374

3E20

NO

TP

LAC

ED

2113

743E

20D

3261

R32

61R

3262

R32

63Y

3261

Y32

62

NO

TP

LAC

ED

0662

057A

89N

OT

PLA

CE

D06

6205

7A25

0102

727B

34

0102

727B

3401

0272

7B34

0102

727B

34

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rd K

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blie

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PR

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HF

PR

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C

GU

D63

38A

GU

D63

36A

GU

D63

38A

HF

(13

6-17

4 M

Hz)

FR

AC

N

VH

F 2

5-45

W P

CB

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chem

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arts

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7

4.22VDC (T)

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1.92

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4.52

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C (

R)

2.62

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T)

4.52

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C (

R)

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C (

T)

1.42

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C (

R)

0VD

C (

T)

4.97

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C

4.40

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C

1.53

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R)

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T)

0.92

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R)

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T)

0VD

C (

R)

0-5d

Bm

(T

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7.44

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R)

9.14

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C (

R)

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C (

T)

0VD

C (

T)

11-1

4dB

m (

R)

-2 to

7dB

m

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C (

T)

2.18

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C (

R)

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C (

T)

1.49

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2.56VDC (R)

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2.5-

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DC

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T)

4.78VDC (R)

2.66VDC (T)

4.52

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MO

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HF

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4.78VDC (R)4.27VDC (T)

4.91

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9.21

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C

3.83

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C (

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L333

3

R33

5612

K

VC

OB

IAS

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HF

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O_1

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D33

61

R33

35 33

9V3_

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F_V

CO

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220

R33

61

C33

31

VD

DA

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F_V

CO

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35.5

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3321

15K

L334

6

L333

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R33

36

100n

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NU

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120.

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X_O

UT

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X_S

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CH

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CC

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FF

ER

S

18V

CC

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GIC

NU

L331

1

2R

X_I

AD

J8

RX

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T

7R

X_S

WIT

CH

3S

UP

ER

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R

TR

B_I

N1916

TX

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SE

15T

X_E

MIT

TE

R

1T

X_I

AD

J

4C

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20F

LIP

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D_F

LAG

GN

D_L

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IC

17

12P

RE

SC

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T5

RX

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SE

6R

X_E

MIT

TE

R

U33

0150

U54

R33

62

47

NU

330p

F

C33

04

R33

54

150K

RX

INJ

VC

OM

OD

_VH

F_V

CO

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6368

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733

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3317

C33

577.

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L335

1

100

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4

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C33

625.

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332

22

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06

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NU

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1

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441.

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Q33

01

L331

8

100n

H

C33

11.0

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6.8p

F

C33

14

C33

15.0

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C33

03

15pF

20K

R33

51

Q33

04B

FQ

67W

NU

47K

R33

19

3.3p

FC

3316

56nH

L336

1

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08

TR

B_V

HF

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O_1

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L336

4

C33

51

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KR

3352

PR

ES

C

VC

OM

OD

VC

OB

IAS

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HF

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O_1

R33

23

1K

VC

TR

L

C33

47.0

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C33

370.

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NU

R33

0722

0

D33

41

VC

OB

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_1

RX

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VH

F_V

CO

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R33

53

C33

24.0

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L330

210

0nH

VC

OB

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2.2K

R33

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3345

20pF

L336

268

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15pF

C33

64

8nH

L334

1

C33

330.

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56nH

L336

3

100

0.1u

FC

3332

NU

R33

12

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uFC

3352

C33

05

VD

DA

NU

5.6p

F

TR

B

100

R33

43

C33

34

VS

F_V

HF

_VC

O_1

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uF

.01u

F

C33

55

VS

F

C33

423p

F

D33

62

1KR33

13

C33

36.0

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NU

C33

35.0

1uF

R33

41

220

R33

5520

K

NU

R33

63

39K

9V3_

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CO

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3

VC

TR

L_V

HF

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O_1

PR

ES

C_V

HF

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O_175

6.8p

F

R33

01

C33

02

C33

065.

1pF

NU

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C33

01

NU

330p

FC

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47

R33

31

3

C33

1910

00pF

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2

4

1

C33

46

Q33

03

C33

41

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F

1000

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39

R33

42

NU

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02

TX

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5.6p

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3318

220

R33

15

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CO

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NU

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61

C33

56.0

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1000

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180n

H

1KR33

04

R33

02

L334

3

220

100

NU

R33

05

C33

6510

00pF

R33

14

R33

64

47K

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C33

48.0

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F

1uH

L334

5

VS

F

VS

F

NC

NC

NC

ZW

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136-

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Co

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scill

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chem

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3

120p

F

C30

21

D30

041

2

RX

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FE

CN

TL_

1

SP

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1000

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3020

100p

FC

3016

1.5K

R30

00

SP

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IF_V

HF

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D30

03

12

3

SP

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C30

14

D30

01

7.5p

F

R30

16

104 6

3 1210

00pF

C30

36

XF

MR

T30

02

3300

pFC

3003

4.7K

R30

11

RX

IN

K9V

1__V

HF

_FE

_1

NU

R30

30 10

SP

_4_3

NU

150n

HL3

025

820

R30

34

D30

001 2

3

NU

1000

pFC

3019

FE

CN

TL_

1_V

HF

_FE

_1V

LTG

C30

06

3300

pFC

3000

56pF

13pF

C30

32

1.5K

R30

25

NU

220

RX

INJ_

VH

F_F

E_1

R30

18

3300

pFC

3011

FE

CN

TL_

2

R30

31

51

SP

_4_1

330p

F

C30

09

C30

01

9V3

C30

13

4.7p

F

Q30

02

56pF

SP

_3_3

100K

R30

09

9V3_

VH

F_F

E_2

R30

02

1KR30

03

18pF

560

R30

32

C30

35

C30

24

NU

820

NU

3300

pF

NU

R30

23

0

C30

05

NU

4.7p

FC

3018

100p

F

C30

3010

00pF

NU

330p

FC

3023

C30

27.0

1uF

R30

2839

0

560n

H

L303

1

56pF

C30

04

SP

_1_2

R30

121K

NU

33nH

L303

4

Q30

21

NU

0R30

351.

5KR

3004

0R30

33

3300

pFC

3007

330p

FC

3029

K9V

1

390

R30

24

NU

.01u

FC

3028

10K

1KR30

36

R30

06

R30

26

NU

SP

_2_2

10K

R30

14

SP

_2_1

51C

3015

C30

02

9.1p

F

56pF

82pF

C30

34

NU

18pF

C30

31

IO3

IO4

5.1p

FC

3033

D30

31

IO1

IO2

560

R30

21

10R30

15

1000

pFC

3008

SP

_1_1

.01u

FC

3022

680

R30

10

C30

17

150n

HL3

032

43pF

1000

pF

IF

FE

CN

TL_

2_V

HF

_FE

_1

Q30

01

SP

_1_3

SP

_2_3

R30

13

R30

27

3.3K

47K

R30

19

10K

L300

2

2.7p

F

470n

H

NU

C30

25 TP

3001

100K

R30

01

C30

26

D30

11

4 6

3 12

0.1u

F

RX

IN_V

HF

_FE

_1X

FM

RT

3001

9V3_

VH

F_F

E_1

9V3

330p

FC

3010

NC

NC

_D30

11_2

9V3

ZW

G01

3039

5-A

3.0-

7.5V

3.6V

DC

C30

12

VH

F (

136-

174

MH

z) R

ecei

ver

Fro

nt

En

d

VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

9

9180

469V

03

3.9V

DC

12.

5kH

z 0

VD

C20

/25k

Hz

5V

DC

0.75

VD

C

0.75

VD

C3V

DC

9180

469V

06

9180

469V

04

9180

468v

04

9180

468V

06

3VD

C6.

8K

R31

07

9V3

R31

351.

2K

390

1GND1GND2 2GND3 4

5GND4

3IN

6O

UT

R31

15

FL3

101

12R

16

R31

1727

K

Q31

02

Q31

51

680

R31

46

620n

HL3

111

620

R31

08

R31

18

6.8K

R31

1112

K

C31

01

5V_V

HF

_IF

_1

GND2 4

1IN

2O

UT

NU

2.2p

F

FL3

111

3

GND1

U31

15-1

CN

TL 13

12

VD

D

14

VS

S 7

DIS

CA

UD

IO_V

HF

_IF

_1

15K

R31

32

0.1u

FC

3144

120p

FC

3143

C31

39

C31

410.

1uF

0.1u

F

13

12

VD

D

14

VS

S 7

Q31

41

U31

11-1

CN

TL

R31

1633

0

10

9V3_

VH

F_I

F_2

3GN

D

1IN

2O

UT

R31

02

C31

10

27pF

FL3

113

0.1u

FC

3142

9.1p

F

IFIN

_VH

F_I

F_1

100

R31

04

NU

C31

1312GND2 4GND3

GND4 5

IN3

OU

T6

NU

DIS

CA

UD

IO

12R

16F

L310

2

GND1

1000

pF

R31

51

C31

00

C31

400.

1uF

10K

1110

VD

D

14 VS

S

7

3

14

VD

D 7

VS

S

U31

11-4

CN

TL

12

U31

15-2

5

CN

TL

4

Q31

52C

3152

.01u

F

.01u

FC

3151

R31

338.

2K

4700

pFC

3146

27K

R31

06

C31

12

390

R31

41

82pF

10R

3112

1.8K

R31

42

R31

5410

K

C31

22

.039

uF

Q31

01

6 VC

C33

0R

3113

20MIXOUT4 OSCIN

3OSCOUT

10 QUADIN

1 RFIN

2RFIN_DEC

5RSSIOUT

9 RSSI_FEED

15


19 IFAMP_DEC1

17IFA

MP

_DE

C2


SA

616

U31

01

8AUDIOOUT

7 AUDIO_FEED

GND

51

44.3

95M

Hz

12R

17Y

3101

2G

ND

4G

ND

1

3O

UT

1IN

R31

30

C31

3630

pF

C31

35

33pF

12K

R31

01

R31

47

12K

C31

3310

uF

C31

15

100

R31

05

22pF

620n

HL3

100

0.1u

F

NU

C31

37.0

39uF

C31

34

455K

Hz

3

21

BW

SE

LEC

T_V

HF

_IF

_1 BW

SE

LEC

T

45B

02

Y31

02

C31

03

33pF

C31

320.

1uF

10K

R31

52

0.1u

FC

3111

U31

15-3

6CN

TL

89

14 VD

D 7VS

S

18pF

C31

14L3

112

620n

H

9V3_

VH

F_I

F_1

5V

D31

01

RS

SI_

VH

F_I

F_1

OU

T

.039

uFC

3123

FL3

112

3

GND1

GND2

4

1IN

2

R31

1410

0

R31

34

10K

NU

2.4K

R31

44

U31

11-2

5

CN

TL

43

14 VD

D 7

VS

S

3.3K

R31

45

C31

45

C31

470.

1uF

620n

HL3

101

0.1u

F22

0pF

C31

48

NU

10V

DD

14 VS

S

7

NU

1pF

C31

31

U31

15-4

CN

TL

12

11

C31

210.

1uF

FL3

115

GND1

34

GND2

IN1

OU

T2

15pF

C31

02

NU

U31

11-3

6CN

TL

89

14

VD

D

7VS

S

3G

ND

1IN

2O

UT

RS

SI

C31

16

FL3

114

0.1u

F0.

1uF

R31

53

C31

04

5V

10K

5V

9V3

9V3

9V3

9V3

9V3

5V

9V3

5V

9V3

0R

3123

1uH

NU

L312

4

33pF

C31

24820

R31

24

ZW

G01

3056

5-O

VH

F (

136-

174

MH

z) IF

4-10

VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

VH

F P

CB

848

6140

B13

Par

ts L

ist

25-4

5W

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C30

0021

1374

1F37

3.3n

F 5

0VC

3001

2113

740F

194.

7pF

5%

C30

0221

1374

0F26

9.1p

F 5

%C

3003

2113

741F

373.

3nF

50V

C30

0421

1374

0F45

56pF

5%

C30

0521

1374

0F51

100p

F 5

%C

3006

2113

740F

4556

pF 5

%C

3007

2113

741F

373.

3nF

50V

C30

0821

1374

1F25

1nF

50V

C30

0921

1374

1F13

330p

F 5

0VC

3010

2113

741F

1333

0pF

50V

C30

1121

1374

1F37

3.3n

F 5

0VC

3012

2113

741F

251n

F 5

0VC

3013

2113

740F

4556

pF 5

%C

3014

2113

740F

247.

5pF

5%

C30

1521

1374

0F45

56pF

5%

C30

1621

1374

0F51

100p

F 5

% 5

0VC

3017

2113

740F

4243

pF 5

% 5

0VC

3019

2113

741F

251n

F 5

0VC

3020

2113

741F

251n

F 5

0VC

3021

2113

740F

5312

0pF

5%

50V

C30

2221

1374

1F49

10nF

50V

C30

2621

1374

3E20

100n

F 1

6VC

3027

2113

741F

4910

nF 5

0VC

3028

2113

741F

4910

nF 5

0VC

3030

2113

741F

251n

F 5

0VC

3033

2113

740F

205.

1pF

5%

50V

C30

3421

1374

0F49

82pF

5%

50V

C30

3521

1374

0F33

18pF

5%

50V

C30

3621

1374

1F25

1nF

50V

C31

0021

1374

1F25

1nF

50V

C31

0221

1374

0F31

15pF

5%

50V

C31

0321

1374

0F39

33pF

5%

50V

C31

0421

1374

3E20

100n

F 1

6VC

3110

2113

740F

3727

pF 5

% 5

0VC

3111

2113

743E

2010

0nF

16V

C31

1221

1374

0F49

82pF

5%

50V

C31

1421

1374

0F33

18pF

5%

50V

C31

1521

1374

0F35

22pF

5%

50V

C31

1621

1374

3E20

100n

F 1

6VC

3121

2113

743E

2010

0nF

16V

C31

2221

1374

3E11

39nF

10%

C31

2321

1374

3E11

39nF

10%

C31

3221

1374

3E20

100n

F 1

6VC

3133

2311

049A

57TA

NT

CP

10u

F 1

0% 1

6VC

3134

2113

743E

2010

0nF

16V

C31

3521

1374

0L30

33pF

2%

C31

3621

1374

0L29

30pF

2%

C31

3721

1374

3E11

39nF

10%

C31

3921

1374

3E20

100n

F 1

6V

C31

4021

1374

3E20

100n

F 1

6VC

3141

2113

743E

2010

0nF

16V

C31

4221

1374

3E20

100n

F 1

6VC

3143

2113

740F

5312

0pF

5%

50V

C31

4421

1374

3E20

100n

F 1

6VC

3145

2113

743E

2010

0nF

16V

C31

4621

1374

1F41

4.7n

F 5

0VC

3147

2113

743E

2010

0nF

16V

C31

5121

1374

1F49

10nF

50V

C31

5221

1374

1F49

10nF

50V

C32

0221

1374

1F49

10nF

50V

C32

0321

1374

1F49

10nF

50V

C32

0521

1374

1F49

10nF

50V

C32

0623

1104

9A57

TAN

T C

P 1

0uF

10%

16V

C32

0821

1374

3E20

100n

F 1

6VC

3209

2113

743E

2010

0nF

16V

C32

1023

1104

9A40

TAN

T C

P 2

.2uF

10%

10V

C32

1121

1374

3E20

100n

F 1

6VC

3213

2311

049A

40TA

NT

CP

2.2

uF 1

0% 1

0VC

3214

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

0VC

3215

2311

049A

09TA

NT

CP

2.2

uF 1

0% 2

0VC

3221

2113

743E

2010

0nF

16V

C32

2221

1374

3E20

100n

F 1

6VC

3224

0882

422W

23F

ILM

SM

1.0

uF 1

5V 5

%C

3225

2113

743E

2010

0nF

16V

C32

2621

1374

0F25

8.2p

F 5

% 5

0VC

3227

2113

740F

5110

0pF

5%

50V

C32

2821

1374

3E20

100n

F 1

6VC

3229

2113

743E

1247

nF 1

0%C

3231

2113

741F

4910

nF 5

0VC

3232

2113

741F

4910

nF 5

0VC

3233

2311

049A

40TA

NT

CP

2.2

uF 1

0%C

3234

2113

741F

4910

nF 5

0VC

3235

2113

741F

4910

nF 5

0VC

3242

2113

740F

5922

0pF

5%

50V

C32

4321

1374

0F59

220p

F 5

% 5

0VC

3244

2113

740F

5922

0pF

5%

50V

C32

4521

1374

0F59

220p

F 5

% 5

0VC

3246

2113

740F

5922

0pF

5%

50V

C32

4721

1374

0F27

10pF

5%

50V

C32

5121

1374

3E20

100n

F 1

6VC

3252

2113

741F

251n

F 5

0VC

3253

2311

049A

56TA

NT

CP

4.7

uF 2

0% 1

0VC

3254

2113

743E

2010

0nF

16V

C32

5523

1104

9A40

TAN

T C

P 2

.2uF

10%

10V

C32

6321

1374

3E20

100n

F 1

6VC

3302

2113

740F

236.

8pF

5%

50V

C33

0321

1374

1F49

10nF

50V

C33

0621

1374

0F20

5.1p

F 5

% 5

0VC

3311

2113

743E

0722

nF 1

6VC

3314

2113

740F

236.

8pF

5%

50V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C33

1521

1374

0F31

15pF

5%

50V

C33

1621

1374

0F15

3.3p

F 5

% 5

0VC

3317

2113

740F

3933

pF 5

% 5

0VC

3318

2113

740F

215.

6pF

5%

50V

C33

1921

1374

1F25

1nF

50V

C33

2421

1374

1F49

10nF

50V

C33

3221

1374

3E20

100n

F 1

6VC

3333

2113

743E

2010

0nF

16V

C33

3421

1374

3E07

22nF

16V

C33

3521

1374

1F49

10nF

50V

C33

3621

1374

1F49

10nF

50V

C33

3721

1374

3E20

100n

F 1

6VC

3341

2113

741F

251n

F 5

0VC

3342

2113

740L

053.

0pF

+-0

.1pF

C33

4421

1374

0F09

1.8p

F 5

% 5

0VC

3345

2113

740L

2520

pF +

-0.2

5pF

C33

4621

1374

1F49

10nF

50V

C33

4721

1374

1F49

10nF

50V

C33

4821

1374

1F49

10nF

50V

C33

5121

1374

1F49

10nF

50V

C33

5221

1374

3E07

22nF

16V

C33

5521

1374

1F49

10nF

50V

C33

5621

1374

3E07

22nF

16V

C33

5721

1374

0F24

7.5p

F 5

% 5

0VC

3361

2113

741F

251n

F 5

0VC

3362

2113

740F

215.

6pF

5%

50V

C33

6321

1374

0F47

68pF

5%

50V

C33

6421

1374

0F31

15pF

5%

50V

C33

6521

1374

1F25

1nF

50V

C34

0021

1374

1F33

2.2n

F 5

0VC

3401

2113

741F

332.

2nF

50V

C34

0221

1374

3E07

22nF

16V

C34

0421

1374

1F33

2.2n

F 5

0VC

3405

2113

740A

791n

F 5

% 5

0VC

3406

2113

740A

791n

F 5

% 5

0VC

3407

2113

741F

332.

2nF

50V

C34

0821

1374

0F33

18pF

5%

50V

C34

0921

1374

1F33

2.2n

F 5

0VC

3410

2113

743E

0722

nF 1

6VC

3411

2113

743E

0722

nF 1

6VC

3412

2113

741F

332.

2nF

50V

C34

1321

1374

3E07

22nF

16V

C34

1421

1374

1F33

2.2n

F 5

0VC

3415

2113

743E

0722

nF 1

6VC

3416

2113

741F

332.

2nF

50V

C34

1721

1374

1F33

2.2n

F 5

0VC

3418

2113

740F

3624

pF 5

% 5

0VC

3420

2113

740F

4982

pF 5

% 5

0VC

3421

2113

741A

4510

nF 5

0VC

3422

2113

740A

791n

F 5

% 5

0VC

3424

2113

741A

4510

nF 5

0V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

C34

2521

1392

8E01

1uF

10%

10V

C34

2621

1374

1F33

2.2n

F 5

0VC

3428

2113

741F

332.

2nF

50V

C34

3021

1374

0A41

33pF

5%

50V

C34

3121

1374

0A61

180p

F 5

% 5

0VC

3432

2113

740A

5382

pF 5

% 5

0VC

3433

2113

740A

2910

pF 5

% 5

0VC

3434

2113

928E

011u

F 1

0% 1

0VC

3435

2113

741F

332.

2nF

50V

C34

3623

1104

9A45

TAN

T C

P 1

0uF

10%

35V

C34

3721

1374

1M69

0.1u

F 5

0VC

3439

2113

741W

011u

F 1

0% 2

5VC

3440

2113

741M

690.

1uF

50V

C34

4121

1374

0A79

1nF

5%

50V

C34

4221

1107

8B57

HQ

390

pF 5

%C

3443

2111

078B

51R

F 2

20 5

NP

O 1

00V

C34

4421

1107

8B51

RF

220

5 N

PO

100

VC

3445

2113

740A

791n

F 5

% 5

0VC

3446

2180

464E

5056

pF 5

% 2

50V

C34

4721

8046

4E50

56pF

5%

250

VC

3448

2111

078B

31H

Q 3

6pF

5%

C34

4921

1107

8B31

HQ

36p

F 5

%C

3450

2111

078B

38H

Q 6

8pF

5%

C34

5121

1107

8B20

HQ

18p

F 5

%C

3452

2111

078B

38H

Q 6

8pF

5%

C34

5521

1107

8B36

HQ

56p

F 5

%C

3456

2113

740A

791n

F 5

% 5

0VC

3457

2113

740A

791n

F 5

% 5

0VC

3458

2113

741A

4510

nF 5

0VC

3459

2180

464E

1610

0pF

5%

250

VC

3460

2113

743E

2010

0nF

16V

C34

6121

1374

1F33

2.2n

F 5

0VC

3464

2113

740F

2811

pF 5

% 5

0VC

3465

2113

740A

791n

F 5

% 5

0VC

3466

2113

740A

791n

F 5

% 5

0VC

3467

2111

078B

40H

Q 8

2pF

5%

C34

6821

1107

8B20

HQ

18p

F 5

%C

3471

2113

743E

0722

nF 1

6VC

3472

2111

078B

47H

Q 1

50pF

5%

C34

7321

1107

8B47

HQ

150

pF 5

%C

3474

2113

740A

791n

F 5

% 5

0VC

3475

2113

740F

3318

pF 5

% 5

0VC

3478

2113

741F

332.

2nF

50V

C34

8921

1107

8B45

HQ

130

pF 5

%C

3490

2111

078B

31H

Q 3

6pF

5%

C34

9221

1107

8B59

HQ

470

pF 5

%C

3494

2111

078B

34H

Q 4

7pF

5%

C34

9621

1107

8B33

HQ

43p

F 5

%C

3497

2111

078B

21H

Q 2

0pF

5%

C34

9821

1107

8B34

HQ

47p

F 5

%C

3501

2113

741F

332.

2nF

50V

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

VH

F 2

5-45

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

11

C35

0221

1374

1F33

2.2n

F 5

0VC

3503

2113

741F

332.

2nF

50V

C35

0421

1374

1F33

2.2n

F 5

0VC

3505

2311

049A

07TA

NT

CP

1uF

10%

16V

C35

0621

1374

1F33

2.2n

F 5

0VC

3507

2113

740F

5110

0pF

5%

50V

C35

0821

1374

1F33

2.2n

F 5

0VC

3509

2113

741F

332.

2nF

50V

C35

1021

1374

3E20

100n

F 1

6VD

3000

4813

833C

02D

UA

L S

OT

MM

BD

6100

D30

0148

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3003

4880

154K

03D

UA

L S

CH

OT

TK

Y S

OT

23D

3004

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D30

1148

8014

2L01

PIN

D30

3148

8614

3B01

MIX

ER

DIO

DE

CR

OS

SO

VE

RD

3101

4880

154K

03D

IOD

E D

UA

L S

CH

OT

TK

YD

3201

4802

233J

09T

RIP

LE S

OT

143-

RH

D32

2148

8023

6E05

CH

IP S

CH

OT

TK

YD

3341

4805

649Q

13V

CT

R 1

SV

228

SO

T23

D33

6148

0564

9Q13

VC

TR

1S

V22

8 S

OT

23D

3362

4862

824C

01V

AR

AC

TO

R C

HIP

D34

5148

8229

0T02

HO

T C

AR

RIE

R H

SM

S28

02D

3452

4882

290T

02H

OT

CA

RR

IER

HS

MS

2802

D34

7148

0248

2J02

PIN

MA

/CO

MD

3472

4802

482J

02P

IN M

A/C

OM

FL3

101

9180

112R

1644

.85

MH

Z X

STA

L F

LTR

80

dBF

L310

291

8011

2R16

44.8

5 M

HZ

XS

TAL

FLT

R

80dB

FL3

111

9180

469V

03C

ER

FLT

R 6

EL

455

KH

Z S

MD

FL3

112

9180

469V

06C

ER

FLT

R 6

EL

455

KH

Z S

MD

FL3

113

9180

468V

04C

ER

FLT

R 4

EL

455

KH

Z S

MD

FL3

114

9180

468V

06C

ER

FLT

R 4

EL

455

KH

Z S

MD

J340

109

8616

6B02

RF

CO

NN

MIN

I UH

FL3

002

2462

587T

23C

OIL

CH

IP 4

70nH

L303

124

6258

7T24

CO

IL C

HIP

560

nHL3

032

2462

587T

17C

OIL

CH

IP 1

50nH

L310

124

6258

7T25

CO

IL C

HIP

620

nHL3

111

2462

587T

25C

OIL

CH

IP 6

20nH

L311

224

6258

7T25

CO

IL C

HIP

620

nHL3

201

2462

587Q

42IN

D C

HIP

390

nH 1

0%L3

231

2462

587Q

20IN

D C

HIP

2.2

uH 2

0%L3

301

2462

587N

44C

HIP

IND

18

NH

5%

L330

224

6258

7N53

CH

IP IN

D 1

00 n

H 5

%L3

317

2462

587V

28C

HIP

IND

33

NH

5%

L331

824

6258

7V34

IND

CH

IP 1

00nH

5%

L333

124

6258

7V32

CH

IP IN

D 6

8NH

5%

L333

224

6258

7V15

IND

CH

IP 1

00nH

10%

L333

324

6258

7Q47

IND

CH

IP 1

uH 1

0%L3

341

2484

562T

13M

INI-

SP

RIN

G A

W IN

D8N

H 2

%

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

L334

324

6258

7N56

CO

IL C

HIP

180

nH

5%L3

344

2462

587N

68C

HIP

IND

1 u

H 5

%L3

345

2462

587N

68C

HIP

IND

1 u

H 5

%L3

346

2484

562T

18M

INI-

SP

RIN

G A

W IN

D

35.5

NH

2%

L335

124

6258

7N68

CH

IP IN

D 1

uH

5%

L336

124

6258

7N50

CH

IP IN

D 5

6 nH

5%

L336

224

6258

7N51

CH

IP IN

D 6

8 nH

5%

L336

324

6258

7N50

CH

IP IN

D 5

6 nH

5%

L336

424

6258

7N68

CH

IP IN

D 1

uH

5%

L340

124

6258

7X48

IND

CH

IP L

O-P

RO

39n

H 5

%L3

402

2484

657R

01F

errit

e B

ead

L340

324

6258

7T13

CO

IL C

HIP

68n

HL3

411

2462

587T

13C

OIL

CH

IP 6

8nH

L341

224

6258

7X47

IND

CH

IP L

O-P

RO

33.

0 N

L341

324

6258

7X46

IND

CH

IP L

O-P

RO

27.

0 N

L341

424

6059

1A01

SQ

UA

RE

CO

IL 4

.22n

H 3

TL3

421

2484

657R

01F

errit

e B

ead

L342

224

6059

1C73

CO

IL A

IRW

16.

96nH

10%

5T

NS

L342

324

6059

1B73

SQ

UA

RE

CO

IL 1

2.77

nH 1

0%L3

431

2484

657R

01F

errit

e B

ead

L343

224

6059

1F77

SQ

UA

RE

CO

IL 3

5.5n

H 1

0%

8T A

WG

22 U

L343

324

6059

1B73

SQ

UA

RE

CO

IL 1

2.77

nH 1

0%L3

441

2460

591E

77S

QU

AR

E C

OIL

30n

H 1

0% 7

TL3

442

2484

657R

01F

errit

e B

ead

L344

324

8465

7R01

Fer

rite

Bea

dL3

444

2460

591X

03C

OIL

SQ

UA

RE

5 T

NS

L344

524

6059

1X01

CO

IL S

QU

AR

EL3

471

2462

587X

69IN

D C

HIP

1.2

uH 5

%L3

472

2460

591X

05C

OIL

SQ

UA

RE

48n

H 1

0%

7TN

SL3

473

2462

587X

69IN

D C

HIP

1.2

uH 5

%L3

474

2462

587N

42C

HIP

IND

12n

H 5

%L3

475

2462

587N

55C

HIP

IND

150

nH 5

%L3

477

2462

587X

69IN

D C

HIP

1.2

uH 5

%L3

491

2460

592B

01C

OIL

AW

51n

H 4

TL3

492

2460

592B

01C

OIL

AW

51n

H 4

TL3

493

2460

592B

01C

OIL

AW

51n

H 4

TL3

494

2460

592B

01C

OIL

AW

51n

H 4

TQ

3001

4813

827A

07N

PN

SM

L S

IG M

MB

R9

Q30

0248

1382

4A17

PN

P 4

0V .2

A B

=10

0-Q

3021

4805

921T

02D

UA

L R

OH

M F

MC

2Q

3101

4813

827A

07N

PN

SM

L S

IG M

MB

R9

Q31

0248

1382

7A07

NP

N S

ML

SIG

MM

BR

9Q

3141

4813

824A

10N

PN

40V

.2A

B=

50-1

50Q

3151

4880

048M

01N

PN

DIG

47k

/47k

Q31

5248

8004

8M01

NP

N D

IG 4

7k/4

7kQ

3221

4880

048M

01N

PN

DIG

47k

/47k

Q33

0148

1382

7A07

NP

N S

ML

SIG

MM

BR

9

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

Q33

0348

0224

5J50

DU

AL

NP

N/P

NP

UM

C5N

Q33

0448

0521

8N63

RF

TR

AN

S S

OT

323

B

FQ

67W

Q34

2151

0538

5Y91

LDM

OS

PW

R M

OD

ULE

16

CE

LLQ

3431

4805

537W

01M

RF

5015

MO

S1

Q34

4148

8441

1L04

RF

PW

R T

ST

R M

RF

247

75W

Q34

7148

8004

8M01

NP

N D

IG 4

7k/4

7kQ

3472

4805

128M

27P

NP

SO

T89

BS

R33

LH

Q35

0148

1382

4A17

PN

P 4

0V .2

A B

=10

0-Q

3502

4813

824A

10N

PN

40V

.2A

B=

50-1

50R

3000

0662

057A

531k

5 1/

16W

5%

R30

0106

6205

7A97

100k

1/1

6WR

3002

0662

057A

4356

0 1/

16W

5%

R30

0306

6205

7A49

1k 1

/16W

5%

R30

0406

6205

7A53

1k5

1/16

W 5

%R

3006

0662

057A

7310

k 1/

16W

5%

R30

0906

6205

7A97

100k

1/1

6WR

3010

0662

057A

4568

0 O

HM

S 5

%R

3011

0662

057A

654k

7 1/

16W

5%

R30

1206

6205

7A49

1k 1

/16W

5%

R30

1306

6205

7A61

3k3

1/16

W 5

%R

3014

0662

057A

1851

1/1

6W 5

%R

3015

0662

057A

0110

1/1

6W 5

%R

3016

0662

057A

0110

1/1

6W 5

%R

3018

0662

057A

3322

0 1/

16W

5%

R30

1906

6205

7A89

47k

1/16

W 5

%R

3021

0662

057A

4356

0 1/

16W

5%

R30

2406

6205

7A39

390

1/16

W 5

%R

3025

0662

057A

531k

5 1/

16W

5%

R30

2606

6205

7A73

10k

1/16

W 5

%R

3027

0662

057A

7310

k 1/

16W

5%

R30

2806

6205

7A39

390

1/16

W 5

%R

3031

0662

057A

1851

1/1

6W 5

%R

3033

0662

057B

470

1/16

W

R31

0106

6205

7A75

12k

1/16

W 5

%R

3102

0662

057A

0110

1/1

6W 5

%R

3105

0662

057A

2510

0 1/

16W

5%

R31

0606

6205

7A83

27k

1/16

W 5

%R

3107

0662

057A

696k

8 1/

16W

5%

R31

0806

6205

7A44

620

OH

MS

5%

R31

1106

6205

7A75

12k

1/16

W 5

%

R31

1206

6205

7A01

10 1

/16W

5%

R31

1306

6205

7A37

330

1/16

W 5

%R

3115

0662

057A

3939

0 1/

16W

5%

R31

1606

6205

7A37

330

1/16

W 5

%R

3117

0662

057A

8327

k 1/

16W

5%

R31

1806

6205

7A69

6k8

1/16

W 5

%R

3130

0662

057A

1851

1/1

6W 5

%R

3132

0662

057A

7715

k 1/

16W

5%

R31

3306

6205

7A71

8k2

1/16

W 5

%

Circ

uit

Ref

Mot

orol

a P

art

No.

Des

crip

tion

R31

3406

6205

7A73

10k

1/16

W 5

%R

3135

0662

057A

511k

2 1/

16W

5%

R31

4106

6205

7A39

390

1/16

W 5

%R

3142

0662

057A

551k

8 1/

16W

5%

R31

4406

6205

7A58

2k4

1/16

W 5

%R

3145

0662

057A

613k

3 1/

16W

5%

R31

4606

6205

7A45

680

OH

MS

5%

R31

4706

6205

7A75

12k

1/16

W 5

%R

3151

0662

057A

7310

k 1/

16W

5%

R31

5206

6205

7A73

10k

1/16

W 5

%R

3153

0662

057A

7310

k 1/

16W

5%

R31

5406

6205

7A73

10k

1/16

W 5

%R

3201

0662

057A

1747

1/1

6W 5

%R

3203

0662

057A

1747

1/1

6W 5

%R

3204

0662

057A

1747

1/1

6W 5

%R

3211

0662

057B

470

1/16

WR

3221

0662

057A

3939

0 1/

16W

5%

R32

2206

6205

7A45

CH

IP R

ES

680

OH

MS

5%

R32

2306

6205

7A25

100

1/16

W 5

%R

3224

0662

057A

8947

k 1/

16W

5%

R32

2506

6205

7A89

47k

1/16

W 5

%R

3227

0662

057A

9710

0k 1

/16W

R32

4106

6205

7A25

100

1/16

W 5

%R

3242

0662

057B

470

1/16

WR

3251

0662

057B

0418

0k 1

/16W

5%

R32

5206

6205

7B10

330k

1/1

6W 5

%R

3261

0662

057A

8947

k 1/

16W

5%

R32

6306

6205

7A65

4k7

1/16

W 5

%R

3301

0662

057A

2275

1/1

6W 5

%R

3302

0662

057A

2510

0 1/

16W

5%

R33

0306

6205

7A57

2k2

1/16

W 5

%R

3304

0662

057A

491k

1/1

6W 5

%R

3308

0662

057B

470

1/16

WR

3311

0662

057A

2510

0 1/

16W

5%

R33

1606

6205

7B47

0 1/

16W

R33

1806

6205

7A09

22 1

/16W

5%

R33

2106

6205

7A73

10k

1/16

W 5

%R

3323

0662

057A

491k

1/1

6W 5

%R

3331

0662

057A

1747

1/1

6W 5

%R

3335

0662

057A

1333

1/1

6W 5

%R

3336

0662

057A

7715

k 1/

16W

5%

R33

4106

6205

7A33

220

1/16

W 5

%R

3342

0662

057A

1539

1/1

6W 5

%R

3343

0662

057A

2510

0 1/

16W

5%

R33

5106

6205

7A80

20k

1/16

W 5

%R

3352

0662

057A

7512

k 1/

16W

5%

R33

5306

6205

7A97

100k

1/1

6WR

3354

0662

057B

0215

0k 1

/16W

R33

5506

6205

7A80

20k

1/16

W 5

%R

3356

0662

057A

7512

k 1/

16W

5%

R33

6106

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GM338Mobile Radios

UHF1 40W Bipolar (403-470MHz)

Service Information


i

Table of Contents





2.1 Receiver Front-End ........................................................................................2-12.2 Front-End Band-Pass Filters & Pre-Amplifier .................................................2-22.3 First Mixer and 1st Intermediate Frequency (IF) ............................................2-22.4 2nd Intermediate Frequency (IF) and Receiver Back End .............................2-3

3.0 Transmitter Power Amplifier (PA) 40 W...............................................................2-33.1 Power Controlled Stage..................................................................................2-43.2 Pre Driver Stage .............................................................................................2-43.3 Driver Stage....................................................................................................2-43.4 Final Stage .....................................................................................................2-43.5 Bi-Directional Coupler.....................................................................................2-53.6 Antenna Switch...............................................................................................2-53.7 Harmonic Filter ...............................................................................................2-53.8 Power Control.................................................................................................2-5




ii



2.0 UHF 25-40W PCB / Schematics / Parts List ........................................................4-3UHF (403-470 MHz) 25-40W 8480643Z06 Top Side .............................................4-3UHF (403-470 MHz) 25-40W 8480643Z06 Bottom Side.......................................4-4UHF (403-470 MHz) Power Amplifier 25-40W .......................................................4-5UHF (403-470 MHz) FRACN..................................................................................4-6UHF (403-470 MHz) Voltage Controlled Oscillator.................................................4-7UHF (403-470 MHz) Receiver Front End ...............................................................4-8UHF (403-470 MHz) IF ...........................................................................................4-9UHF PCB 8480643Z06 Parts List 25-40W...........................................................4-10

1-1

Section 1






AZM25RKF9AA5 GM338 403-470 MHz 25-40W Conv Pref (Bipolar)

Item Description



X RAE4151_ BNC 403-430 MHz, 1/4 Wave Roof Mount


X RAE4153_ BNC 450-470 MHz, 3.5dB Gain Roof Mount

X RAE4154_ BNC 450-470 MHz, 5dB Gain Roof Mount








Weight GM338 1400 g






Transmitter UHF



Frequency Stability(-30°C to +60°C, +25° Ref.) ±2.0 ppm

Power 25-40W


FM Hum & Noise -40 dB @ 12.5kHz-45 dB @ 20/25kHz

Conducted/Radiated Emission (ETS) -36 dBm <1 GHz-30 dBm >1 GHz

Adjacent Channel Power -60 dB @ 12.5 kHz-70 dB @ 25 kHz



<3% typical

Receiver UHF







75 dB @ 20/25 kHz





-45 dB @ 20/25 kHz


+1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction




The receiver is able to cover the UHF range from 403 to 470 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, 1st IF, 2nd IF and receiver back-end . Two varactor tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the 1st IF of 44.85 MHz. Low side first injection is used.


Demodulator

1. Crystal Filter





from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT


The 2-pole 44.85 MHz crystal filters in the 1st IF section and two pairs of 455 kHz ceramic filters in the 2nd IF section provide the required adjacent channel selectivity. The correct pair of ceramic filters for 12.5 or 25 kHz channel spacing is selected via control line BWSELECT. The 2nd IF at 455 kHz is mixed, amplified, and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.


The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C4001, C4002, D4001 and associated components). The 2-pole pre-selector filter tuned by the varactor diodes D4001 and D4002 pre-selects the incoming signal (RXIN) from the antenna switch to reduce spurious effects to following stages. The tuning voltage (FECTRL_1) ranging from 2 volts to 8 volts is controlled by pin 20 of PCIC (U4501) in the Transmitter section. A dual hot carrier diode (D4003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q4003) with collector base feedback to stabilize gain, impedance, and intermodulation. The collector current of approximately 11-16 mA is drawn from the 9.3 volt supply via L4003 and R4002. A 3dB pad (R4006,R4007,R4011 and R4008 - R4010) stabilizes the output impedance and intermodulation performance.


2.3 First Mixer and 1st Intermediate Frequency (IF)



The IF amplifier Q3101 is actively biased by a collector base feedback (R3101, R3106) to a current drain of approximately 5 mA drawn from the 5 volt supply. Its output impedance is matched to the second two pole crystal filter FL3102. The signal is further amplified by a preamplifier (Q3102) before going into pin 1 of IFIC (U3101).



2.4 2nd Intermediate Frequency (IF) and Receiver Back End

The 44.85 MHz 1st IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator (2nd LO) to produce the low IF signal at 455 kHz. The 2nd LO frequency is determined by crystal Y3101. The 2nd IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters (FL3112, FL3114) for 20/25 kHz channel spacing or FL3111 and FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3103 pin 8 (DISCAUDIO) which is fed to the ASFIC_CMP (U0221) pin 2 (part of the Controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101 pin 5, having a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101 pin 63) and is available at accessory connector J0501-15.


The radio’s 40W power amplifier (PA) is a four stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. It consists of the following four stages in the line-up. The first stage is a LDMOS predriver (U4401) that is controlled by pin 4 of PCIC (U4501) via Q4473 (CNTLVLTG). It is followed by another LDMOS stage (Q4421), an LDMOS stage (Q4431), and a bipolar final stage (Q4441).


Device Q4401 is surface mounted. Q4421, Q4431 and Q4441 are directly attached to the heat sink.

PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor



The first stage (U4401) amplifies the RF signal from the VCO (TXINJ) and controls the output power of the PA. The output power of the transistor U4401 is controlled by a voltage control line feed from the PCIC pin4(U4501). The control voltage simultaneously varies the bias of two FET stages within U4401. This biasing point determines the overall gain of U4401 and therefore its output drive level to Q4421, which in turn controls the output power of the PA.

In receive mode the voltage control line is at ground level and turns off Q4473 which in turn switches off the biasing voltage to U4401.

3.2 Pre Driver Stage

The next stage is a 13dB gain LDMOS device (Q4421) which requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line PCIC_MOSBIAS_1 is set in transmit mode by PCIC pin 24 and fed to the gate of Q4421 via the resistive network R4407, R4408, R4416 and R4415. The bias voltage is tuned in the factory.

3.3 Driver Stage

The following stage is an enhancement-mode N-Channel MOSFET device (Q4431) providing a gain of 10dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line Bias_2_UHF_PA_1 is set in transmit mode by the ASFIC and fed to the gate of Q4431 via the resistive network R4630, R4631, and R4632. This bias voltage is also tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s dc supply voltage input, A+, via L4421.

3.4 Final Stage

The final stage uses the bipolar device Q4441. The device’s collector current is also drawn from the radio’s dc supply voltage input. To maintain class C operation, the base is dc-grounded by a series inductor (L4441) and a bead (L4440). A matching network consisting of C5541-C5544 and two striplines transform the impedance to 50 Ohms and feeds the directional coupler.


3.5 Bi-Directional Coupler

The Bi-directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reverse power of the RF power from Q4441. The coupled signal is rectified to an output power proportional dc voltage by the diodes D4451 & D4452 and sent to the RFIN of the PCIC. The PCIC controls the gain of stage U4401 as necessary to hold this voltage constant. This ensures the forward power out of the radio is held to a constant value.

3.6 Antenna Switch

The antenna switch utilizes the existing dc feed (A+) to the last stage device (Q4441). Basic operation is to have both PIN diodes D4471 and D4472 turns on during key-up by forward biasing them. It is achieve by pulling down the voltage at the cathode end of D4472 to around 11.8V (0.7V drop across each diode). The current through the diodes needs to be set around 80mA to fully open the transmit path through resistor R4496. Q4472 is a current source controlled by Q4471 and is eventually connected to pin ANO of PCIC. VR4471 ensures the voltage at the resistor R4511 never exceeds 5.6V.

3.7 Harmonic Filter

Inductors L4491, L4492, L4493 and capacitors C4448, C4493,C4494, C4496 and C4498 form a low-pass filter to attenuate harmonic energy from the transmitter. R4491 is used to drain any electrostatic charges that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.8 Power Control

The transmitter uses the Power Control IC (PCIC, U4501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the bi-directional coupler and rectified, to provide a dc voltage to the RFIN port of the PCIC (pin 1) which is proportional to the sampled RF power.

The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the control loop. The reference voltage level is programmable through the SPI line of the PCIC. This reference voltage is proportional to the desired power setting of the transmitter, and is factory programmed at several points across the frequency range of the transmitter to offset frequency response variations of the transmitter’s power detector circuits.


The PCIC provides a dc output voltage at pin 4 (INT) and applied as CNTLVLTG to the power-adjust input pin of the first transmitter stage U4401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the dc voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.


U4502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the dc voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced so as to reduce the transmitter temperature.


The synthesizer subsystem consists of the reference oscillator (Y4261 or Y4262), the low voltage fractional-N synthesizer (LVFRAC-N, U4201), and the Voltage Controlled Oscillator VCO.


The reference oscillator (Y4262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An Analog-to-Digital (A/D) converter internal to U4201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U4201, pin 25 to set the frequency of the oscillator. The output of the oscillator (pin 3 of Y4262) is applied to pin 23 (XTAL1) of U4201 via an RC series combination.




The LVFRAC-N synthesizer IC (U4201) consists of a pre-scaler, a programmable loop divider, control divider logic, a phase detector, a charge pump, an A/D converter for low frequency digital modulation, a balanced attenuator to balance the high frequency analog modulation and low frequency digital modulation, a 13V positive voltage multiplier, a serial interface for control, and finally a super filter for the regulated 5 volts.

A voltage of 5V applied to the super filter input (U4201 pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R4322) and the synthesizer charge pump resistor network (R4251, R4252). The synthesizer supply voltage is provided by the 5V regulator U4211.

In order to generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U5701-32), a voltage of 13 Vdc is being generated by the positive voltage multiplier circuitry (D4201, C4202, C4203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase (U4201-14 and -15).



The serial interface (SRL) is connected to the µP via the data line DATA (U4201-7), clock line CLK (U4201-8), and chip enable line CSX (U4201-9).

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER



The Voltage Controlled Oscillator (VCO) consists of the VCO buffer IC (VCOBIC, U4301), the TX and RX tank circuits, the external RX buffer stages, and the modulation circuits.




The external RX buffers (Q4332) are enabled by a high at U4201 pin 3 (AUX4) via transistor switch Q4333. In TX mode the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U4201 pin41) is applied to the modulation circuits CR4321, R4321, R4322 and C4324. These modulate the TX VCO frequency via coupling capacitor C4321. Varactor CR4321 is biased for linearity from the VSF.

Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U4201 Pin28)

VCC Buffers

TX RF Injection

U4201 Pin 32

AUX3 (U4201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20


U4301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U4201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U4201 Pin28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332



The complete synthesizer subsystem comprises mainly of a low voltage FRAC-N (LVFRACN) IC, Reference Oscillator (crystal oscillator with temperature compensation), charge pump circuits, loop filter circuits, and dc supply. The output signal (PRESC_OUT) of the VCOBIC (U4301, pin12) is fed to of U4201, pin 32 (PREIN) via a low pass filter (C4229,L4225,C4226) which attenuates harmonics and provides correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U4201) is basically a dual modulus pre-scaler with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator (Y4261 or Y4262).

The output signal of the phase detector is a pulsed dc signal which is routed to the charge pump. The charge pump outputs a current at pin 43 of U4201 (IOUT). The loop filter (which consists of R4221-R4223, C4221-C4225,L4221) transforms this current into a voltage that is applied to the varactor diodes CR4311 for transmit, CR4301, CR4302 & CR4303 for receive and alters the output frequency of the VCO.The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U4201-40) or BIAS 2 (U4201-39). The currents are set by the value of R4251 or R4252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time when new frequency data has been loaded into the synthesizer the magnitude of the loop current is increased by enabling the IADAPT (U4201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transient of the CSX line. When the synthesizer is within the lock range the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U4201-4).

LOCK (U4201-4) signal is routed to one of the µP´s ADCs input U101-56. From the voltage the µP determines whether LOCK is active.

In order to modulate the PLL the two spot modulation method is utilized Via pin 10 (MODIN) on U4201. The audio signal is applied to both the A/D converter (low frequency path) as well as the balanced attenuator (high frequency path). The A/D converter converts the low frequency analog modulating signal into a digital code which is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U4201-41) and connected to the VCO modulation diode CR4321 via R4321, C4325.

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T4051?

RFSignal at C4015?

No

No

RFSignal at C4025?

No or

Check harmonic filtersL4491-L4493, C4492, J4401





Istuning voltage

OK?

No

Yes



Yes

Check T4051, T4052, D4051, R4052, L4008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes



No


collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?

Check Supply Voltage circuitry. Check U0611

and U0641.

No

No

No

Check U4501.


No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C4009?


2.0 Troubleshooting Flow Chart for 40W Transmitter

No

Is Q4441 OK ?

YesIs drive from VCO >+4dBm?

No

Is voltage drop across R4497 >4.5V ?

No

Check Q4431 gate(open)and drain resistances (11kohm)

NoCheck Q4421 gate(open)and drain resistances (11kohm)

No

CheckPCIC_MOSBIAS_1

No

No

ChangeQ4573

START

No power

Is Vctrlthere?

Is Q4573 OK?

Check voltageon pin 4 U4501

Check voltageon pin 5 U4501

Check R4422-5and go back to top

TroubleshootASFIC

Check voltageon TP4531

ChangePCIC

Check R4409 &

R4473 and go backto top

CheckMOSBIAS_2

CheckASFIC

Are D4471 &D4472 OK?

ChangeD4471 &D4472

NoNoNoNo No

Yes

Yes

YesYes

Yes

YesYes

Yes

No

No CheckPCIC

Yes

Change Q4421

Change Q4431

Yes

Change U4401

YesDo visual checkon all components

No

Change Q4441

Troubleshoot VCO



5V at pin 6 of

D4201


correct?

Is U4201 Pin 47at = 13VDC

Is U4301 Pin 19<40 mVDC in RX &>4.5 VDC in TX? (at

VCO section)

Start


CorrectProblem

Check 5VR e gu la to rU4211

+5V at U4201Pin’s

13 & 30?

Is 16.8MHzSignal at

U4201 Pin 19?

Check Y4261, C4261, C4262, C4263, D4261

& R4261

Are signalsat Pin’s 14 &15 of U4201?

Check R4201

Check C4381

Is U4201 pin 2 >4.5 VDC in Rx & <40 mVDC in Rx

Replace U4201

RemoveShorts


Pins 14 & 15 ofU4201?

Replace orresolder

necessarycomponents


dBm?

Are R4221,R4222,R4223,C4221,C4222,

& C4223 OK?

Replace U4201



triangular?

Do Pins 7,8 & 9of U4201 togglewhen channel is

changed?


and U4201 Pins 7,8 & 9

Replace U4201

Check uP U0101Troubleshooting

Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YES

YESNO

NO

NO

NO

YES

NO

YES

YES

Check D4201, C4202, C4203, & C4206

5V at U4201 pins 5, 20, 34 &

36

Check 5V Regulator

U4211


U4201 pin 23?

Replace U4201

YES

NO

NO

YES

NO

YES










OK?


NO

YES

Replace Q4301

at base of Q4332

NO

NO

NO

NO

YES

YES

YES

YES




YES

YES

YES

YES

NO

NO

NO

NO

NO


4.5VDCat CR4321


Replace C4322

Replace C4325

NO

NO

YES

YES


TX VCORX VCO

CorrectProblem


OK?


and U4301 Pin 19


replace U4301


replace Q4332


OK, Replace Q4332





replace U4301

YES YES


4.5V DC

OK ?

OK? OK?

C4325

at U4301 Pin 14 & 18 4.5V DC

OK ?at U4301 Pin 14 &18

NO

4-1

Section 4







Page 4-3Page 4-4




UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

3

2.0

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

16

1

89

U0251

C0211

C0212

C0251

R0211

R0212

R0251

R0252

R0257

C0252R0253

C0262

87

114

U0211

C0256 R0256

R0268

C0253

Q0110R0102

R0261

R0262C0261 R0269

18

1

J0451

C0421

C0451C0452C0453

C0455C0456C0457

C0458C0459C0460C0461C0462

C0463C0464

C0466C0467C0468

R0441

C0441

C0442

C0443

C0445

C0446

C0447

C0448

C0449

C0470

C0471

C0472

C0473

C0474

C0476

C0477

C0478

C0490

C0221

C0222

C0225

C0241

C0243

R0220

R0221

R0223

R0224

R0229

R0254

R0255

R0222

R0442

C0242

C0244

C0245

C0246

C0496

D0201

R0241

R0242

137

25

13

U0221

3

2

1

U0651

C0681

Q0681

R0681

R0682

C0482C0483

C0486C0487

C0488

C0493

C0494

C0654

C0655

L0481

L0482

C0223

C0224

C0226

C0227

C0228

C0232

C0233

C0234

C0235

C0236C0495

R0225

R0226

R0227

R0228

C0231

C0237

C0652

R0101

R0104

R0108

R0110

R0115

R0116

C0104

C0106

C0107

C0101

C0102

C0132

R0106

R0131

R0132

1 76

51

26

U0101

32

17

16

1

U0121

C0131

R0105 R0114

R0170

9

U0271

234

Y0131

C0501

C0502C0503C0504C0505C0506C0508

C0509C0510

C0511C0512

C0513C0514

C0515C0516

C0517C0518

C0542

Q0177

Q0181

Q0185

R0181R0182

R0185R0186

R0510

R0535

R0538

R0539

R0543

VR0501

VR0503

VR0505

VR0510

20

11

10

J0501

C0651

D0651

R0651

R0652

1

6

5

U0641

1

6

5

U0611

C0484

C0601 C0603

C0612

R0533 R0611

R0612

J0601

C4210

C4212C4213

C4214

C4215

C4216

C4225

C4226

C4227

C4229

C4230

C4231

C4241

C4242

C4243

C4244

C4245

C4246

C4253

C4289L4201

L4225

R4211

45 8U4211

C4221

C4222

C4223

C4224

C4235

L4221

R4221

R4222 R4223

R4263

32

J4401

C4444

C4459

C4465

C4466

C4491

C4507

C4521

C4522 R4501

R4502

U4502

C4423

C4432

C4435

C4449C4450

C4460

C4478

C4490

C4497

C4520

D4403

R4607

C4420

C4481

C4485

C4489

C4495

C4602

R4600

R4601

R4602

C4431

C4434

C4453

C4455

C4456

C4457

D4402

R4459

C4476

5

2 6

813

7

4Q4421

R4476

L4474

C4401

C4403

C4404

C4410

C4417

C4419

C4447

C4461

C4486

C4488

C4505

C4506

L4401

L4403

R4401

R4402

R4403

116

89

U4401

C4425

C4426

Q4471

Q4472

R4408

R4415

R4416

R4481

R4504

R4511

R4512

TP4530

VR4471

1 3

L4312

C4322

C4323

C4325R4321

C4317C4318

C4351

C4352C4353

C4355

C4382

L4304

L4305

L4313

Q4301

R4311

R4312

C4383

R4301

R4302

C4308

C4309

C4375

1 3

L4303

43

Q4333

R4305

R4346

SH4301

C4331 C4332

C4335

C4337

C4339

C4354

C4371

C4372

C4373

C4374

L4331

L4371

R4331

R4332

R4333

R4337

R4341

R4343

R4345

C4493

C4441

C4442

C4443

FL3114

FL3112

432

C3139

C3145

C3148

R3142

R3144

R3145

87

114U3115

2Y3102

C3143R3135

C3140

C3141

87 1

14U3111

C3142

U3101

R3117

11

120

10

C3124

C3131

C3132

C3133

C3134

C3135

C3136

C3137

L3124

R3111

R3123

R3124

R3130

R3132

C3115

C3114

23 4

56

FL3102

C3101

C3102

C3103

23 4

56

FL3101

L3100

L3101

R3101

R3106

R3148

L4008

C4001

C4002

C4003C4004

C4005

C4006

C4007

C4008

C4009

C4014

C4015

C4016

C4026

C4027

D4001

D4002

D4003

L4001

L4002

L4003

L4006

Q4001

Q4003R4001

R4003 R4004

R4005

R4007

R4018

R4020

R4022

R4066

C4017

C4018

C4019

C4020

C4021

C4022

C4023

C4029

C4030

C4051

C4052

D4004

D4005

L4004

L4005

L4051

R4012

R4013

R4014

R4015

R4051

D4051

21 5

43

T4051

C4031

C4055

L4053

C4053

C4054

L4054

215

4 3

T4052

C4472

C4474

C4475

C4480C4510

D4471

D4472

L4472

L4473

C4232

C4233

C4234

C4251

C4252

C4254

C4255

R4251

R4252U

HF

(40

3-47

0 M

Hz)

25-

40W

848

0643

Z06

To

p S

ide

4-4

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

C3144

C3146

C3147

Q3141

R3134

R3141

R3146

R3147

R3154

R3113

R3133

C3151

C3152

Q3152R3151

R3152

R3153

Q3151

43 2

FL3111

FL3113

43 2FL3115

C4263

D4261

R4261

TP4201

TP4202

Y4261

2 34

Y4262

C4261

C4262

R4241

R4262

137

25

13

U4201

C4201

C4202

C4203

C4204 C4205

C4206

C4208

C4209

C4211

C4287

D4201R4201

R4206

C4207

C4288

R4203

R4204 C4228

L4231

R4228

C0485

4

32Y3101

C3116

C3121

C3122

C3123

D3101

L3112

Q3102

R3112

R3114

R3115

R3116

R3118

C3104

C3110

C3111

C3112 C3113

L3111Q3101

R3102

R3104

R3105

R3107

R3108

C4010

C4011

C4012

C4013

C4024

C4028

C4060

C4061

C4062

C4064

C4065

C4066

C4067

C4068

C4069

D4006

D4007

Q4002

Q4004

R4002

R4016

R4017

R4052

R4053

R4054

R4055

R4060

R4061

R4062

R4063R4064

R4068

R4069

R4070

R4071

R4072

C0401C0402C0403

C0406C0407C0408

C0409C0410C0411

C0422

C0423

C0426

C0427

C0428

C0429

C0430

C0431

C0491

C0492

C0497

12

J0401 R0407

R0409

R0410

R0412

R0467

C0301C0302

C0303

C0351

C0352

C0354D0301

28

15 14

1

U0301

458 U0351

C0304

C0305

C0324C0325

C0343

R0323

R0324

R0344

R0341

R0345

C0341

C0342

C0344

R0342

R0343

R0346

R0347

1

458

U0341

U0342 C0141

161

8 9U0141

TP0101

TP0497

C0201

C0202

C0203C0204

C0205

C0254C0265

C0266

C0267

R0107

R0201

R0202

R0203

R0204 R0205

R0206

R0207

R0208

R0265

R0266

R0267

R0408

TP0102

TP0221

TP0222

U0653

VR0541

C0103

C0111

C0112D0101

118

J0552

R0111

R0112

R0113

R0117

R0121

R0401

TP0103

TP0104

TP0492

14 5

8U0111

22

21

871

U0122

C0105

C0121

C0122

C0123

C0255

R0468

145

8U0652

R4019

TP4003

C4301

C4302

C4303

C4304

C4305 C4306

C4307

C4316

C4336

C4361

C4362

C4363

C4381

CR4301

CR4302

CR4303

L4301

L4302

L4333

L4361

R4303

R4304

R4315

R4361

SH4302

11

120

10U4301

C4311

C4312

C4313

C4314

C4315

C4321C4324

CR4311

CR4321

L4311

R4313

R4314

R4322

R4323

C4025

C4451

C4463

C4469

C4470

C4473C4499

D4452

R4455

R4457

R4472

R4475

R4496TP4531

VR4473

C4333

C4334

C4338

L4332

Q4331

Q4332

R4334

R4335

R4336

R4338

R4339

R4340

R4342

R4344

R4347

C4452

C4464

D4451

D4453

R4409

R4471

R4473

R4474

R4506

R4507

TP4532

C4492 C4498

C4448

C4496

L4491

L4492

R4491

C4494

L4493

1

24

6

Q4441

C4436

C4438

C4439

C4482

L4421

L4436

L4437

C4422

C4437

L4440

L4441

R4421

6543 2 1

Q4431

35

C4632

L4402

R4633

TP4537

VR4472

C4421

C4484

C0499

C0611

C4446

C4630

R4485

R4486

R4630

R4631

R4632

C4424

L4541

L4543

Q4451R4414

R4487

R4488 R4513

R4525 C4483

C4407

C4409

C4412

C4414

C4416

C4462

C4487

L4411

R4405

R4411

R4412

R4427

R4428

R4495

R4497

TP4536

R4433

C4479

C4502 C4503

C4504

R4480

R4482

R4483

R4484R4492

R4503

R4523

1

17 9

25

U4501

C4418

Q4473

R4422

R4423

R4424

R4425

R4431

R4514

TP4533

E0631

VR0601

C0331

C0353

R0331

R0332

R0333

R0335

R0481 R0482

U0331

C0641C0644

C0645

R0641

R0642

R0643

C0662

Q0641

Q0661

C0661

C0663

D0660

D0661

Q0662

Q0663

R0661

R0662

TP0661

C0622

C0671

R0671

R0672

VR0671

C0541

C0621

D0621

Q0171

Q0173

R0172

R0173

R0174

R0621

TP0530

VR0621

D0179

R0171

R0175

R0176

R0177R0178

R0179

R0183

R0184

R0511

R0512

R0525

R0529

R0530

R0531

R0541

R0542

VR0151

VR0504

VR0509

Q0183

R0537VR0537

C0271

C0275

C0276C0277

C0558

C0559C0560

C0591

C0592

C0593

E0271

E0272

R0591

R0592

C0151

C0272

C0273

C0274

C0554

C0575 C0576

D0151

Q0151

Q0271

R0151R0152

R0273

R0274

R0275

R0276

R0593

TP01511

40

J0551

UH

F (

403-

470

MH

z) 2

5-40

W 8

4806

43Z

06 B

ott

om

Sid

e

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

5

PASUPVLTG

PASUPVLTG_UHF_PA_1

PASUPVLTG

NU

NU

NU

NU

NU

NU

R4633

C4632

30pF

C4485

3000pF

C4481

C4602

.033uF ALT

L4402

5.6V

VR4472

30pF

C4484

.033uF

C4421

C4490

1000pF

C4495

C4489

C4436

10uF

1000pF

C4478

C4493

C4497

1000pF

L4421

C4423

1uF

C4422

100pF

30pF

C4482

100pF

C4439

L4436

0.1uF

C4438

17nH

L4437

9V3

100pF

C4488

C4486

30pF

C4404

100pF

390nH

L4403

9V3_UHF_PA_1

11.03nH

L4401

C4418

0.1uF

3.9pF

C4403

4 to 6 dBm

C4407

0.1uF

TXINJ

R4405

200

TX_INJ_UHF_PA_1

R4433

NU

NU

NU

NU

NU

NU

NU

NU NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NUNU

NU

NU

NU

NU

NU

NU

NU

NU

C4462

VD1

14

VG12

VG23

NC1

8

NC2

9

NC3

10

NC4

15

RFIN

16

RFOUT16

RFOUT27

VCNTRL

1

U4401

30C65

EP17

G2

11

GND14

GND25

GND312

GND413

300

R4401

300

R4403

15

R4402

C4410

100pF

C4401

100pF

51

R4495

100pF

C4412

R4497

51 L4411

390nH

C4417

100pF

C4487

30pF

0.1uF

C4409

9V3

33pF

C4419

C4461

C4447

C4453

6

2

134578

Q4421

BLM31A02PT

L4474

R4414

C4483

100pF

R4525

C4431

30pF

L4541

C4424

L4543

13.85nH

9V3

Load

51pF

C4420

C4434

39pF

4.7

R4600

4.7

R4602

R4601

4.7

C4630

0.1uF

R4486

120

R4632

24K

100pF

C4446

R4631

1K

120

R4485

R4476

R4480

10K

PCIC_MOSBIAS_1

2.4 to 2.6 VDC

TP4537

MOSBIAS_2

BIAS_2_UHF_PA_1C4476

C4520

C4456

C4457

R4481

D4402

R4459

C4455

C4437

D4403

R4607

G17

G28

G39 10

G4

S1S2S3S4

Q4431

MRF5015

D

G

39pF

C4460

4

2

1

3

MRF650

Q4441

27pF

C4435

30pF

C4432

16pF

C4450C4449

33pF

13.85nH

L4441

L4440

10

R4421

39pF

C4442

C4441

30pF

C4470

D4453

C4464

C4499

100pF

100pF

C4507

R4474

100K

10K

R4507

10K

R4506

100K

R4409

4.3K

R4473

9V3

D4452

D4451

D4471

C4465

11pF

C4491

100pF

C4469

5.6V

VR4473

C4444

C4452

C4466

C4459

100pF

C4443

7.5pF

120

R4457

R4472

C4463

C4498

6.8pF

L4493

17nH

C4492

100pF

R4471

R4491

11K

J4401-1

1

L4491

17nH

L4492

17nH

C4448

12pF

J4401-3

3

10pF

C4494

5.6pF

C4496

J4401-2

2

DUMMY

12pF

C4474

2pF

C4475

17nH

L4472

RX_IN_VHF_PA_1RXIN

C4480

D4472

FECTRL_1

FECTRL_2

C4479

100pF

RESETFE_CNTL_1_VHF_PA_1

FE_CNTL_2_VHF_PA_1

RESET_VHF_PA_1

9V3

36pF

C4472

43.67nH

L4473

C4510

36pF

R4496

82

100pF

C4473

Q4472

51

R4511

PCIC_MOSBIAS_1

CSX

DATA

CSX_VHF_PA_1

DATA_VHF_PA_1

VLIM

TEMP

30

V1014

V4516

V5EXT

VAR1

VAR2

VAR3

15

VG

NA

Q11

QX

10

RS

31RSET

RX

CLK

26

CQ

12

13

CQX

DATA

28

F1689

GND2

25

ANO

32

BPOS

27

CEX

29

U4501

1uF

C4505

R4492

10K

CLK

CLK_VHF_PA_1

9V3

19

17

20

18

24

2221

23

VL

RFINT1

GND1

INTCI

CJ

CL

3.1 VDC (44W)

2.2 VDC (28W)

0.75 VDC

R4484

68K300K

R4482

TP4532 R4501

5.6K

C4521

100pF

6

12

8

43

5

7

.02uF

C4504

R4502

R4523

68K

C4503

2200pF

C4506

2200pF

R4483

100K

.015uF

C4502

1000pF

C4522

R4503

3.9K

ALT

PA_PWR_SET

9V3

10K

R4504

K9V1_UHF_PA_1

TEMPSENSE

TEMPSENSE_UHF_PA

K9V1

3GND

1POS

VOUT2

U4502

9V3

100K

R4487

Q4451

R4488

2.7K

Load

3.7 to 3.9 VDC

C4426

100pF

TP4536

C4425

.022uF

R4408

20K

4.5 VDC (44W)

4.4 VDC (28W)

4.7K

R4428

R4411

C4414

1000pF

TP4533

620

R4424

620

620

R4422

R4425

620

R4423

6.2 VDC (28W)

6.5 VDC (44W)

Q4473

R4431

9V3

5.6K

R4412

C4416

.022uF

R4427

10K

CNTLVLTG_UHF_PA_1 3.3K

R4514

CNTLVLTG

PA_PWR_SET_1_UHF_PA_1

PA_PWR_SET

PA_PWR_SET

R4630

2.2 VDC (28W)

3.11 VDC (44W)

TP4531

R4455

C4451

0R4475

9.2 VDC

470

R4512

Q4471

10K

R4513

TP4530

VR4471

5.6V

A+

100

R4415

100

R4416

A+

UH

F (

403-

470

MH

z) P

ow

er A

mp

lifie

r 25

-40W

4-6

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

C42

6222

0pF

C42

51

C42

280.

1uF

C42

52

R42

21

1000

pF

150

TP

4202

1

C42

534.

7uF

IN_5

V_R

F_R

EG

TR

B

D42

61

2.2u

FC

4213

R42

41

MO

DIN

220

C42

21.0

1uF

C42

27LO

CK

_UH

F_F

N_1

100p

F

100p

FC

4243

U45

07

C42

02

.01u

F

BW

SE

LEC

T

100p

F

VS

F_U

HF

_FN

_1

C42

55

0.1u

FC

4209

2.2u

FC

4210

16_8

MH

z_U

HF

_FN

_1

C42

04

5V_U

HF

_FN

_1

100p

F

R42

22 510

VC

OM

OD

C42

4610

0pF

100p

FC

4287

C42

41

CLK

_UH

F_F

N_1

C42

42

VD

DA

100p

F

C42

23

0.1u

FC

4222

CS

X_U

HF

_FN

_1

C42

07

C42

890.

1uF

Vac

VC

TR

L

R42

63

C42

44

47R42

04

CLKVS

F

100p

F

5V

.01u

F

C42

03

30KR42

52

C42

12

.018

uF

1514V

MU

LT2

12V

MU

LT3

11V

MU

LT4

VRO13

25W

AR

P

23X

TA

L1X

TA

L224

SF

BA

SE

26S

FC

AP

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

21V

BP

AS

S

47VCP

VM

ULT

1

31N

C3

44PD_GND

PD_VDD5

PR

EIN

32

33PRE_GND

34PRE_VDD

35P

VR

EF

18R

EF

SE

L

27

45IA

DA

PT

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN

41M

OD

OU

T

17N

C1

29N

C2

39B

IAS

2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6

36DVDD

19F

RE

FO

UT

46A

DA

PT

SW

22AGND

48A

UX

1

1A

UX

2

2A

UX

3

3A

UX

4

20AVDD

40B

IAS

1

63A

27

U42

01

C42

31

DA

TA

.01u

F

VD

DA

_UH

F_F

N_1

L420

139

0nH

.01u

FC

4232

BW

SE

LEC

T_U

HF

_FN

_1

2.2u

FC

4233

VC

OM

OD

_UH

F_F

N_1

510p

F

C42

25

C42

08

0.1u

F

0.1u

FC

4254

TP

4201

1

C42

0610

uF

R42

6115

0K

33K

R42

06

C42

631.

5pF

L423

1

PR

ES

C

CS

X

2.2u

H

MO

DIN

_UH

F_F

N_1

C42

6162

pF

5V_U

HF

_FN

_2

DA

TA

_UH

F_F

N_1

C42

142.

2uF

VC

OB

IAS

_2

C42

05.0

1uF

150

R42

01

C42

88

IN_5

V_R

F_R

EG

_UH

F_F

N_1

16_8

MH

z

2G

ND

3O

UT

VC

C4

VC

NT

L1

16.8

MH

zY

4262

TT

S05

V

C42

110.

1uF

R42

62

C42

35

2.2u

FC

4230

68

R42

23

3

TR

B_U

HF

_FN

_1

6A

1

5A

2

4A

3

K1

1K

22

K3

D42

01

65V

_TA

P

5E

RR

OR

7F

EE

DB

AC

K

4

GN

D

8IN

PU

T1

OU

TP

UT

2S

EN

SE

3S

HU

TD

OW

N

LP29

51U

4211

U45

06

VC

TR

L_U

HF

_FN

_1

.01u

FC

4234

R42

11

0

R42

2847

K

2.2u

FC

4215

R42

51

R42

03

39K

47

C42

26

C42

24

LOC

K

1uF

21

C42

16

16.8

MH

z

Y42

61

100p

FC

4245

L422

533

nH

C42

29

C42

0110

0pF

ZW

G01

3027

0-A

2.63

VD

C (

TX

)

4.97

VD

C (

25K

HZ

Ch

an. S

pac

ing

)

0 V

DC

(12

.5K

HZ

Ch

an. S

pac

ing

)

5 V

DC

(L

ock

ed)

0 V

DC

(U

nlo

cked

)

10.8

7 V

DC

-16

to -

11 d

Bm

(T

x)

12.7

VD

C

4.97

VD

C

6.68

VD

C

2.5

to 1

1 V

DC

1.76

VD

C (

Tx)

1.78

VD

C (

Rx)

3.79

VD

C

2.48

VD

C

3.43

VD

C

-18

to -

16 d

Bm

(R

x)

2.48

VD

C

1.28

VD

C

3.48

V

DC

0 V

DC

(R

X)

4.97

VD

C (

TX

)

3.05

VD

C (

RX

)

0 V

DC

4.97

VD

C

2.52

VD

C4.

97 V

DC

4.58

VD

C

HF

(40

3-47

0 M

Hz)

FR

AC

N

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

7

CR

4302

R43

6118

0

CR

4301

0

R43

15

L433

2

Vac

GN

D

RX

INJ

VC

OB

IAS

_2

100p

F

VC

TR

L_U

HF

_VC

OC

4312

12pF

C43

09

R43

11

390n

H

7.5K

Vac

L436

1

.022

uFC

4336

R43

33

C43

05V

acC

4339

Vac

CR

4303

R43

0210

K

R43

46

10K

1pF

C43

21

C43

141.

5pF

5V_U

HF

_VC

O

C43

180.

22uF

C43

810.

1uF

1KR

4343

C43

23

Vac

30R43

13

R43

4410Q

4332

0.1u

F

CR

4311

100p

F

C43

52

C43

63

Vac

C43

01

C43

33V

ac

C43

72

Vac

SH

4301

SH

IELD

R43

32

Vac

4.7u

F

C43

25

0

RX

INJ_

UH

F_V

CO

1P

1

2 P2

3P

3

R43

47

TX

INJ_

UH

F_V

CO

L431

2

RE

SO

NA

TO

R

L433

133

nH

L430

139

0nH

TR

B_U

HF

_VC

O

C43

1510

0pF

Vac

22

R43

31

C43

13

TX

_EM

ITT

ER

1T

X_I

AD

J10

TX

_OU

T

13T

X_S

WIT

CH

14

VC

C_B

UF

FE

RS

18 VC

C_L

OG

IC

RX

_BA

SE

6R

X_E

MIT

TE

R

2R

X_I

AD

J8

RX

_OU

T

7R

X_S

WIT

CH

3S

UP

ER

_FLT

R

19T

RB

_IN

16T

X_B

AS

E15 14

CO

LL_R

FIN

20F

LIP

_IN

11GND_BUFFERS

9GND_FLAG

GND_LOGIC17

12P

RE

SC

_OU

T5

50U

54

U43

01

C43

34

Vac

Q43

01

R43

41

100p

F

0

2.4p

F

C43

07

68nH

C43

24

56K

R43

21

L437

1

R43

23

6.8p

F

100K

C43

31

R43

39V

ac

C43

5110

0pF

VC

OM

OD

390n

H

L431

1

C43

552.

2uF

C43

62

Vac

CR

4321

C43

22

Vac

SH

IELD

SH

4302

Vac

C43

74

Vac

R43

37

270

R43

14

C43

73V

ac

C43

062p

F

C43

1110

0pF

C43

710.

1uF

0.22

uF

100p

F

C43

08

0.1u

FC

4316

C43

35

Vac

Vac

R43

45

C43

83

Vac

R43

36

8.2p

F

C43

37

C43

03

C43

54

51pF

C43

82

Vac

2.2u

F

R43

125.

6K

30

R43

03

390n

H

R43

38

Vac

L433

3

R43

34

Vac

8.2p

F

2.2K

R43

42

C43

02

390n

H

C43

32

Vac P

RE

SC

L430

2

R43

22

10K

2

6 4

1 3

C43

6110

0pF

TX

INJ

Q43

33

VC

OB

IAS

_2_U

HF

_VC

O

C43

750.

1uF

Q43

31

Vac

10

R43

0539

0nH

L430

4

390n

HL4

305

R43

35

Vac

VacV

SF

_UH

F_V

C0

3.9p

F

C43

17

VC

OM

OD

_UH

F_V

CO

TR

B

C43

04

5.6K

R43

01

51pF

C43

38

VS

F

3P

3

5V

C43

530.

1uF

L430

3R

ES

ON

AT

OR

1P

1

2P

2

R43

40

Vac

180

R43

04

390n

H

L431

3

GR

OU

ND

VC

TR

L

PR

ES

C_U

HF

_VC

O

5V

VS

F

TX

SW

TX

SW

RX

SW

RX

SW

VS

F

ZW

G01

3027

2-0

0 V

DC

(T

x)

4.58

VD

C

4.58

VD

C

13.5

to

16

dB

m

0 V

DC

(T

x)4.

7 V

DC

(R

x)

2.5

- 11

VD

C

0 V

DC

(R

x)4.

97 V

DC

(T

x)

-18

to -

16 d

Bm

(R

x)-1

6 to

-11

dB

m (

Tx)

4 to

6 d

Bm

4.54

VD

C

4.54

VD

C (

Tx)

0 V

DC

(R

x)

4.42

VD

C (

Rx)

0 V

DC

(T

x)

3.1

VD

C (

Rx)

2.6

VD

C (

Tx)

1.91

VD

C (

Tx)

0 V

DC

(R

x)

2.45

VD

C (

Rx)

0 V

DC

(T

x)

2.35

VD

C

(Tx)

4.54

VD

C(R

x)

2.43

VD

C (

Rx)

UH

F (

403-

470

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

4-8

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

GN

D

51

R40

51

C40

09

100p

F

33

R40

08

D40

05

VacR40

17

XF

MR

T40

51

1 2 3

5 4

43pF

C40

04

TB

DL4

004

IN

NE

G

PO

S

39pF

Q40

01V

ac

C40

07

270

R40

11

C40

2410

00pF

33pF

C40

02

100K

NE

G

PO

S

R40

01

TB

D

L400

5 IN

Vac

Q40

02

FE

CT

RL_

1_U

HF

_FE

Q40

03

27nH

L405

3

100K

R40

1239

pFC

4003

3300

pF

TP

4003

IF

C40

13

470n

HL4

003

Vac

150n

HL4

051

3300

pF

R40

15

C40

11

3

54

L400

6

Vac

XF

MR

T40

52

12

1.8p

F

C40

17

D40

04

C40

28

Vac

R40

60

330K

C40

261.

8pF

Vac

22pF

R40

53

C40

19

R40

20V

ac

15nH

L405

4

68

R40

07

D40

02

R40

19V

ac

12pF

C40

18

R40

55V

ac

36pF

C40

01

C40

20

1.8p

F

330p

FC

4010 43

pFC

4005

1.8p

FD

4001

C40

27

36pF

330p

F

C40

22

C40

12

D40

51

IO1

1IO

22

IO3

3 IO4

4

470n

H

Vac

L400

8

R40

16

RX

IN

16pF

C40

53

1.8p

FC

4029

Vac

C40

16

IF_U

HF

_FE

IN

NE

G

PO

S

R40

52 0

TB

D

L400

2

TP

4001

R40

033.

9K

Vac

C40

25

C40

14

100p

F

IN

NE

G

PO

ST

BD

L400

1

R40

02

330

Vac

150

R40

54

R40

09

9V3_

UH

F_F

E

13pF

C40

31

RX

INJ

100p

F

C40

15

270

R40

13

36pF

TP

4002

C40

21

270

9V3

R40

06

GN

D_U

HF

_FE

150

R40

10

C40

51

C40

5416

pF

10pF

D40

03

R40

05

10K

0

Vac

R40

22

R40

18

9V3

RX

IN_U

HF

_FE

RX

INJ_

UH

F_F

E

43pF

FE

CT

RL_

1

C40

06

R40

14

10

C40

55

Vac

C40

301.

8pF

82pF

C40

52

1000

pFC

4008

C40

60

Vac

2.7K

22pF

R40

04

C40

23

ZW

G01

3026

9-O

4.6

VD

C

3 to

6.5

VD

C

0.7

VD

C

UH

F (

403-

470

MH

z) R

ecei

ver

Fro

nt

En

d

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

9

9186

176B

01

9180

469V

04

9180

469V

03

9180

469V

0691

8046

8V06

R31

442.

4K

BW

SE

LEC

T_V

HF

_IF

_1

9V3_

VH

F_I

F_2

C31

139.

1pF

NU

R31

0410

0N

U

10

0

620n

HN

U

R31

05

R31

30L3

100

14

VD

D

7

VS

S

51

U31

11-1

MC

74H

C40

66

13

CN

TL1

2

C31

16

L311

2

0.

1uF

620n

H

9V3_

VH

F_I

F_1

10

uF

C31

33

0.1

uF

C31

32

.01u

F

C31

51

OU

T2

C31

37.0

39

uF

CF

WC

45

5D

FL3

112

GN

D1

34

GN

D2

IN1

620n

H

C31

21

L310

1

0.1u

F

R31

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GM338Mobile Radios

UHF2 40W Bipolar (450-520MHz)

Service Information


i

Table of Contents






3.0 Transmitter Power Amplifier (PA) 40W................................................................2-33.1 Power Controlled Stage..................................................................................2-43.2 Pre-Driver Stage.............................................................................................2-43.3 Driver Stage....................................................................................................2-43.4 Final Stage .....................................................................................................2-43.5 Bi-Directional Coupler.....................................................................................2-43.6 Antenna Switch...............................................................................................2-53.7 Harmonic Filter ...............................................................................................2-53.8 Power Control.................................................................................................2-5




ii



2.0 UHF Band 2 25-40W PCB / Schematics / Parts List ...........................................4-3UHF Band 2 (450-520 MHz) 40W 8480645Z04 Top Side......................................4-3UHF Band 2 (450-520 MHz) 40W 8480645Z04 Bottom Side................................4-4UHF Band 2 (450-520 MHz) Power Amplifier 40W ................................................4-5UHF Band 2 (450-520 MHz) FRACN .....................................................................4-6UHF Band 2 (450-520 MHz) Voltage Controlled Oscillator ....................................4-7UHF Band 2 (450-520 MHz) Receiver Front End...................................................4-8UHF Band 2 (450-520 MHz) IF...............................................................................4-9UHF Band 2 PCB 8480645Z04 Parts List 25-40W.............................................. 4-10

1-1

Section 1






AZM25SKF9AA5 GM338 450-520 MHz 25-40W

Item Description




X RAE4156_ BNC 470-494 MHz, 3.5 Gain Roof Mount








Weight GM338 1400 g






Transmitter UHF




±2.0 ppm

Power 25-40W



-45 dB @ 20/25kHz





<3% typical

Receiver UHF







75 dB @ 20/25 kHz





-45 dB @ 20/25 kHz


+1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and troubleshooting for the associated Controller circuits refer to the Controller Section of this manual.



The UHF receiver, shown in Figure 2-1, is able to cover the UHF range from 450 to 520 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, high-IF, low-IF and receiver back-end . Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. Low-side first injection is used.


Demodulator

1. Crystal Filter





from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT


The two 2-pole 44.85 MHz crystal filters in the high-IF section and two pairs of 455 kHz ceramic filters in the low-IF section provide the required adjacent channel selectivity .The correct pair of ceramic filters for 12.5 or 25KHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified, and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.


The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C5001, C5002, D5001, and related components). The 2-pole pre-selector filter, tuned by the varactor diodes D5001 and D5002, pre-select the incoming signal (RXIN) from the antenna switch to reduce spurious effects to the stages that follow. The tuning voltage (FECTRL_1), ranging from 2 volts to 8 volts, is controlled by pin 20 of PCIC (U5501) in the transmitter section. A dual hot carrier diode (D5003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q5003) with collector base feedback to stabilize gain, impedance, and intermodulation. The collector current of approximately 11-16 mA is drawn from the 9.3 volt supply via L5003 and R5002. A 3dB pad (R5006,R5007, R5011, and R5008 - R5010) stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. Varactor diodes D5004 and D5005 are controlled by the same signal, FECTRL_1, which controls the pre-selector filter. A following 1 dB pad (R5013 - R5015) stabilizes the output impedance and intermodulation performance.


The signal from the front-end is converted to the first IF (44.85 MHz) using cross-over, quad diode mixer D5051. Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using low side injection via matching transformers T5051 and T5052. The injection signal (RXINJ) coming from the RX VCO buffer (Q5332) is filtered by the lowpass filter consisting of L5053, L5054, and C5053 - C5055 followed by matching transformer T5052 which has a level of approximately 15dBm.

The mixer IF output signal from transformer T5501, pin 2 is fed to the first two-pole crystal filter (FL3101). The filter output in turn is matched to IF amplifier Q3101 which is actively biased using collector-base feedback resistors R3101and R3106 to provide a current drain of approximately 5 mA drawn from the 5 volt supply. The output impedance of this device is matched to the second two-pole crystal filter FL3102. The signal is further amplified by a preamplifier Q3102 before going to pin 1 of IFIC (U3101).

A dual, hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

Transmitter Power Amplifier (PA) 40W 2-3


The 44.85 MHz first IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator to produce a low IF signal of 455 kHz. The second LO frequency is determined by crystal Y3101. The second IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters (FL3112 and FL3114) for 20/25 kHz channel spacing, or FL3111 and FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3103, pin 8 (DISCAUDIO) which is fed to ASFIC_CMP U0221, pin 2 (part of the controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101, pin 5, which has a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101, pin 63) and is available at accessory connector J0501-15.

3.0 Transmitter Power Amplifier (PA) 40W

The radio’s 40W power amplifier (PA), shown in Figure 2-2, is a four-stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. The first stage is an LDMOS predriver (U5401) controlled by pin 4 of PCIC (U5501) via Q5473 (CNTLVLTG). This stage is followed by another LDMOS stage (Q5421), LDMOS stage Q5431, and a bipolar final stage (Q5441). Device Q5401 is surface mounted and Q5421, Q5431, and Q5441 are directly attached to the heat sink.


PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

2-4 Transmitter Power Amplifier (PA) 40W


The first stage (U5401) amplifies the RF signal from the VCO (TXINJ) and controls the output power of the PA. The output power of the transistor U5401 is controlled by a voltage control line feed from the PCIC (U5501, pin 4). The control voltage simultaneously varies the bias of two FET stages within U5401. This biasing point determines the overall gain of U5401 and therefore its output drive level to Q5421, which in turn controls the output power of the PA.

In receive mode, the voltage control line is at ground level and turns off Q5473, which in turn switches off the biasing voltage to U5401.

3.2 Pre-Driver Stage

The next stage is a 13dB gain LDMOS device (Q5421) which requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line PCIC_MOSBIAS_1 is set in transmit mode by PCIC, pin 24 and fed to the gate of Q5421 via the resistive network R5407, R5408, R5416, and R5415. The bias voltage is factory tuned.

3.3 Driver Stage

This stage is an enhancement-mode N-Channel MOSFET device (Q5431) providing a gain of 10dB. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line Bias_2_UHF_PA_1 is set in transmit mode by the ASFIC and fed to the gate of Q5431 via resistive network R5630, R5631, and R5632. This bias voltage is also factory tuned.

If the transistor is replaced, the bias voltage must be tuned using the Customer Programming Software (CPS). Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s dc supply voltage input, A+ via L5421.

3.4 Final Stage

The final stage uses bipolar device Q5441 whose collector current is also drawn from the radio’s dc supply voltage input. To maintain class C operation, the base is dc-grounded by series inductor L5441 and bead L5440. A matching network consisting of C5541-C5544 and two striplines transform the impedance to 50 ohms and also feed the directional coupler.

3.5 Bi-Directional Coupler

The bi-directional coupler is a microstrip printed circuit, which couples a small amount of the forward and reverse power of the RF power from Q5441. The coupled signal is rectified to an output power proportional dc voltage by diodes D5451 and D5452 before being sent to the RFIN input of the PCIC. The PCIC controls the gain of stage U5401 as necessary to hold this voltage constant. This ensures the forward power out of the radio is held to a constant value.

Transmitter Power Amplifier (PA) 40W 2-5

3.6 Antenna Switch

The antenna switch utilizes the existing dc feed (A+) to the last stage device (Q5441). Basic operation is to have both PIN diodes (D5471 and D5472) turned on during key-up by forward biasing them. This is achieved by pulling down the voltage at the cathode end of D5472 to around 11.8V (0.7V drop across each diode). The current through the diodes needs to be set around 80mA to fully open the transmit path through resistor R5496. Q5472 is a current source controlled by Q5471 and is eventually connected to pin ANO of PCIC. VR5471 ensures the voltage at resistor R4511 never exceeds 5.6V.

3.7 Harmonic Filter

Inductors L5491, L5492, and L4493 along with capacitors C5448, C5493, C5494, C5496, and C5498 form a low-pass filter to attenuate harmonic energy from the transmitter. Resistor R5491 drains any electrostatic charges that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits to improve spurious response rejection.

3.8 Power Control

The transmitter uses the power control IC (PCIC, U5501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the bi-directional coupler and rectified to provide a dc voltage to the RFIN port of the PCIC (pin 1) that is proportional to the sampled RF power.

The PCIC has internal digital-to-analog converters (DACs) which provide a reference voltage to the control loop. The reference voltage level is programmable through the SPI line of the PCIC and is proportional to the desired power setting of the transmitter. Factory programming at several points across the frequency range of the transmitter is used to offset frequency response variations of the transmitter’s power detector circuits.

The PCIC provides a dc output voltage at pin 4 (INT) and applied as CNTLVLTG to the power-adjust input pin of the first transmitter stage U5401. This adjusts the transmitter power output to the intended value. Variations in forward or reflected transmitter power cause the dc voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.

Capacitor C5502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power rise (key-up) and power decay (de-key) characteristic to minimize splatter into adjacent channels.

U5502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a dc voltage to the PCIC (TEMP, pin 29) proportional to temperature. If the dc voltage produced exceeds the set threshold in the PCIC, the transmitter output power is reduced to decrease the transmitter temperature.



The synthesizer, shown in Figure 2-3, consists of a reference oscillator (Y5261 or Y5262), low voltage LVFRAC-N synthesizer (U5201), and a voltage controlled oscillator (VCO).


The reference oscillator (Y5262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An analog-to-digital (A/D) converter internal to U5201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U5201, pin 25 to set the frequency of the oscillator. The output of the oscillator (Y5262, pin 3) is applied to pin 23 (XTAL1) of U5201 via an RC series combination.

In applications where less frequency stability is required, the oscillator inside U5201 is used along with external crystal Y5261, varactor diode D5261, C5261, C5262, and R5262. In this case, Y5262, R5263, C5235 and C5251 are not used. When Y5262 is used, Y5261, D5261, C5261, C5262 and R5262 are not used, and C5263 is increased to 0.1 uF.


The LVFRAC-N synthesizer IC (U5201) consists of a pre-scaler, programmable loop divider, control divider logic, phase detector, charge pump, A/D converter for low frequency digital modulation, balanced attenuator used to balance the high frequency analog modulation and low frequency digital modulation, 13V positive voltage multiplier, serial interface for control, and a super filter for the regulated 5 volts.

A voltage of 5V applied to the super filter input (U5201, pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R5322), and synthesizer charge pump resistor network (R5251, R5252). The synthesizer supply voltage is provided by 5V regulator, U5211.

To generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U5701-32), a voltage of 13 Vdc is generated by the positive voltage multiplier circuit (D5201, C5202, and C5203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase (U5201, pins 14 and 15).




The serial interface (SRL) is connected to the µP via data line DATA (U5201-7), clock line CLK (U5201-8), and chip enable line CSX (U5201-9).

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER



The voltage controlled oscillator (VCO), shown in Figure 2-4, consists of a VCO buffer IC (VCOBIC, U5301), TX and RX tank circuits, external RX buffer stages, and modulation circuits.

The VCOBIC together with Fractional-N synthesizer (U5201) generates the required frequencies in both transmit and receive modes. The TRB line (U5301, pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables TX tank and TX output (pin 10), and a low enables RX tank and RX output (pin 8). A sample of the signal from the enabled output is routed from U5301, pin 12 (PRESC_OUT), via a low pass filter of U5201, pin 32 (PREIN).

A steering line voltage (VCTRL) between 3.0V and 10.0V at varactor diode CR5311 tunes the full TX frequency range (TXINJ) from 450 MHz to 520 MHz, and at varactor diodes CR5301, CR5302, and CR5303 tunes the full RX frequency range (RXINJ) from 405 MHz to 475 MHz. The tank circuits uses the Hartley configuration for wider bandwidth. For the RX tank circuit, external transistor Q5301 is used in conjunction with the internal transistor for better side-band noise.


Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U5201 Pin28)

VCC Buffers

TX RF Injection

U5201 Pin 32

AUX3 (U5201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20


U5301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U5201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U5201 Pin28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332


The external RX buffers (Q5332) are enabled by a high at U5201, pin 3 (AUX4) via transistor switch Q5333. In TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U5201, pin 41) is applied to the modulation circuits CR5321, R5321, R5322, and C5324. These modulate the TX VCO frequency via coupling capacitor C5321. Varactor CR5321 is biased for linearity from the VSF.


The synthesizer consists of a low voltage FRAC-N (LVFRACN) IC, reference oscillator (crystal oscillator with temperature compensation), charge pump circuits, loop filter circuits, and dc supply. The output signal (PRESC_OUT) of the VCOBIC (U5301, pin12) is fed to of U5201, pin 32 (PREIN) via a low pass filter (C5229,L5225,and C5226) which attenuates harmonics and provides correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U5201) is a dual modulus pre-scaler with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator (Y5261 or Y5262).

The output signal of the phase detector is a pulsed dc signal routed to the charge pump. The charge pump outputs a current at U5201, pin 43 (IOUT). The loop filter (consisting of R5221-R5223, C5221-C5225, and L5221) transforms this current into a voltage that is applied to varactor diodes CR5311 for transmit, CR5301, CR5302 and CR5303 for receive and alters the output frequency of the VCO.The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U5201-40) or BIAS 2 (U5201-39). The currents are set by the value of R5251 or R5252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time, when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT (U5201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transistion of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U5201-4) which is routed to one of the µP´s ADCs input U101-56. From the voltage the µP determines whether LOCK is active.

To modulate the PLL, the two-spot modulation method is utilized via pin 10 (MODIN) on U5201. The audio signal is applied to both the A/D converter (low frequency path) and the balanced attenuator (high frequency path). The A/D converter converts the low frequency analog modulating signal into a digital code which is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U5201-41) and connected to the VCO modulation diode CR5321 via R5321 and C5325.

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T5051?

RFSignal at C5015?

No

No

RFSignal at C5025?

No or






Istuning voltage

OK?

No

Yes



Yes

Check T5051, T5052, D5051, R5052, L5008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes



No


collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?


U5211 and U0641.

No

No

No

Check U5501.


No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C5009?



No

Is Q5441 OK ?


No

Is voltage drop across R5497 >4.5V ?

No

Check Q5431 gate(open)and drain resistances (11kohm)

NoCheck Q5421 gate(open)and drain resistances (11kohm)

No

PCIC_MOSBIAS_1 Check

No

No

ChangeQ4573

START

No power

Is Vctrlthere?

Is Q5573 OK?

Check voltagen U5501, pin 4

Check voltageon U5501, pin 5


TroubleshootASFIC

ChangePCIC

Check R5409 and


CheckMOSBIAS_2

CheckASFIC

Are D5471 &D5472 OK?

ChangeD5471 &D5472

NoNo No

Yes

Yes

YesYes

Yes

YesYes

Yes

No

No CheckPCIC

Yes

Change Q5421

Change Q5431

Yes

Change U5401

YesDo visual checkon all components

No

Change Q5441

Troubleshoot VCO




5V at pin 6 of

D5201

Isinformation


?


?

IsU5301 Pin 19


?

Start

Visual check of the

BoardOK?

CorrectProblem


+5Vat U5201

Pins13 & 30

?

Is16.8MHz


?


associated parts

Aresignals

at Pins 14 &15 of U5201

?


IsU5201


in Rx?

Replace U5201

RemoveShorts

Isthere a short


U5201?

Replace orresolder

necessarycomponents

IsRF level at

U5201 Pin 32 -12 < x <-25

dBm?

AreR5221,R5222,R5223,C5221,

C5222,& C5223 OK?

Replace U5201


AreWaveforms


?

DoPins 7,8 & 9


changed?


U0101 and U5201Pins 7,8 & 9

Replace U5201


Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YESYESNO

NO

NO

NO

YES

NO

YES

YES

Check D5201, C5202, C5203, &

C5206

5V at U5201

pins 5, 20, 34 & 36

Check 5V Regulator

U5211


U5201 Pin 23?

Replace U5201

YES

NO

NO

YES

NO

YES











OK?


NO

YES

Replace Q5301

at base of Q5332

NO

NO

NO

NO

YES

YES

YES

YES




YES

YES

YES

YES

NO

NO

NO

NO

NO


4.5VDCat CR5321


Replace C5322

Replace C5325

NO

NO

YES

YES

TX VCORX VCO

CorrectProblem


OK?


and U5301 Pin 19


replace U5301


replace Q5332


OK, Replace U5301



replace U5301

Replace Q5311

YES YES


4.5V DC

OK ?

OK? OK?

C5325

at U5301 Pin 14 & 18 4.5V DC

OK ?at U5301 Pin 14 &18

NO

Pin 16


4-1

Section 4





Table 4-1 UHF B2 40W Diagrams and Parts Lists


Page 4-3Page 4-4

SCHEMATICSPower Amplifier 40WFRACNVoltage Controlled OscillatorReceiver Front EndIF



UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-3

2.0

UH

F B

and

2 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

C0211

C0212

C0251

C0252

R0211

R0212

R0251

R0252

R0253

R0257

16

1 89

U0251

C0253

C0256 C0261

C0262

R0256R0268

R0269

871

14

U0211

J0451

1

C0421

C0451

C0452

C0453

C0455

C0456

C0457

C0458

C0459

C0460

C0461

C0462

C0463

C0464

C0466

C0467

R0441

C0468

18

32

17

16

1

U0121

C0132

R0131

51

26

U0101

1 76

R0106

C0106

R0101R0102

R0104

R0108

R0110

R0115

R0116

C0224

R0226

R0227

R0228

Q0110

R0261

R0262

R0442

C0441

C0442

C0443

C0445

C0446

C0447

C0448

C0449

C0470

C0471

C0472

C0473

C0221

C0222

C0225

C0228

C0243

R0220

R0221 R0223

R0224

R0229

R0254

R0255

R0222

C0101

C0102

R0105

R0114

R0170

C0131

R0132

234

Y0131

C0104 C0107

C0237

C0223

C0227

C0232

C0233

C0236

R0225C0226

C0495C0234

C0235

C0231

9

U0271

C0542

Q0177

Q0181

Q0185

R0181R0182

R0185R0186

R0510

R0535

R0538

R0539

R0543

VR0501

VR0503

VR0505

VR0510

20

11

10

J0501

C0484

C0601

C0603

C0612

R0533 R0611

R0612

1

6

5

U0611

J0601

C0651

C0652

D0651

R0651

R0652

3

2

1

U0651

C0241 C0242

C0244

C0245

C0246

R0241

R0242

137 25

13

U0221

C0496

D0201

C0482

C0483

C0486C0487

C0488

C0493

C0494

C0654

C0655

C0681

L0481

L0482

Q0681

R0681

R0682

1

6

5

U0641

C5401

C5403

C5404

C5410

C5417

C5419

C5447

C5461

C5486

C5488

C5505

C5506

L5401

L5403

23

R5401

R5402

R5403

9 8

16 1

U5401

C5425

C5426

1

R5408

R5415

R5416

R5481

Q5471

Q5472

R5504

R5511

R5512

TP5530

VR5471

C5431

C5434

C5453

C5455

C5456

C5457

D5402

56

8 7

4Q5421

R5459

C5476

R5476

L5474

R5600

R5601

R5602

C5420

C0474

C0476

C0477

C0478

C0490

C5472

C5474

C5475

C5480

C5510

D5471

D5472

L5472

L5473

C5432

C5435

C5449C5

450

C5460

C5520

D5403

R5607

C5423

C5481

C5485

C5489

C5490

C5495

C5497

C5602

C5478

C5493

C5444

C5465

C5466

C5491

C5521

C5522 R5501

R5502

U5502

C5459

C5507

32

J5401

C5441

C5442

C5443

C3124

C3131

C3132

C3133

C3134

C3135

C3136

C3137

L3124

R3123

R3124

R3130

R3132

C3115R3111

R3117

11

120

10

U3101

C3143

R3135

C3139

C3140

C3141

C3142

C3145 C3148

R3142

R3144

R3145

87 1

14U3115

2

Y3102

87 1

14

U3111

432

FL3112

FL3114

C3101

23 4

56

FL3101

L3100

R3148

C3102

C3103

L3101R3101

R3106

23 4

56

FL3102

C3114

C5031

C5052

C5053

C5054

C5055

D5051

L5008 L5051

L5053

L5054

R5015

R5051

21 5

43

T5051

346 1

2

T5052

C5017

C5018

C5019

C5020

C5021

C5022

C5023

C5029

C5030

D5004

D5005

R5012

C5001

C5002

C5003

C5004

C5005

C5006

C5007

C5008

C5009

C5014

C5026

C5027

C5033

C5034

D5001

D5002

D5003

L5001

L5002

L5003

L5006

Q5001

Q5003

R5001

R5003

R5004

R5005

R5018

R5020

R5021

R5022

C5015 C5016

L5004

R5007

R5066

C5032

L5005

L5009

R5013

C5210 C5212C5213

C5214

C5215

C5216 C5242

C5243

C5244

C5245

C5246

C5289L5201

R5211

45 8U5211

C5222

C5223

C5225

C5226

C5227

C5229

C5230

C5231

C5241

C5253

L5221

L5225

C5221

R5221

R5222

R5223

C5232

C5233

C5234

C5251

C5252

C5254

C5255

R5251

R5252

C5224

C5235 R5263

C5317

C5318

C5322

C5323

C5325

C5351

C5352

C5382

3

L5312

L5313

R5311

R5312

R5321

C5308

C5309

C5353

C5355

C5383

L5304

L5305

Q5301

Q5311

R5301

R5302

R5305 C5331

C5332

C5371

C5372

C5373

C5374

L5371

R5331

R5332

R5333

R5337

R5341

C5375

L5303

43

Q5333

R5346

3

SH5301

C5335

C5337

C5339R5343

R5345

C0504

C0505

C0506

C0508

C0509

C0510

C0511

C0512

C0513

C0514

C0515

C0516

C0517

C0518

C0501

C0502

C0503

UH

F B

and

2 (

450-

520

MH

z) 4

0W 8

4806

45Z

04 T

op

Sid

e

4-4

UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

C

99

CNTL-REV-T6

C3144

C3146

C3147

C3151C3152

Q3141

Q3151

Q3152

R3134R3141

R3146

R3147

R3151

R3152

R3153

R3154

R3133

432

Y3101

C3122

C3123

R3113

R3116

D3101

R3115

Q3102

C3116

R3118

C3111

R3104

R3105

R3108

R3102

C3104

C3110

C3112 C3113

L3111Q3101

R3107

C3121

L3112

R3112

R3114

43 2

FL3111

FL3113

43 2

FL3115

C5028

C5068

Q5002

R5016

R5017

R5068

C5010C5011

C5012

C5013

R5002

C5064

C5065

C5069

D5006

Q5004

R5062

R5063 R5064

R5070

R5072

C5024

C5060

C5067

R5052

R5053

R5054

R5055

R5060

R5071

TP5003

C5061

C5062

D5007

R5061

R5069

C5451

C5463

C5469

C5470

C5473

C5499

D5452

D5454

R5455

R5457

R5472R5475

R5496

TP5531

C5025

C5452

C5464

D5451

D5453

R5409

R5471

R5473

R5474

R5506

R5507

C5448

C5492 C5498

L5491

L5493

L5492

C5496

R5491

C5494

C5263

D5261

L5231

R5261

TP5201

TP5202

Y5261

2 34

Y5262

C5261

C5262

R5241

R5262

137

25

13

U5201

C5228C5287

R5228

C5201

C5202

C5203 C5204

C5205

C5206

C5207

C5208C5209 C5211

C5288

D5201

R5201

R5203 R5204

R5206

C5066

R5019

C5301

C5302

C5303

C5304

C5305 C5306

C5307

C5316

CR5301

CR5302

CR5303

L5301

L5302

R5303

R5304

R5315

C5381 11

120

10

U5301

C5311

C5312

C5313

C5314

C5315

C5321

C5324

CR5311

CR5321

L5311

R5313

R5314

R5322

R5323

C5336 C5338

L5332

L5333 Q5332

R5336

R5338

R5339

R5340

R5342

R5344

R5347

SH5302

C5333C5363

C5334

C5354

C5361

C5362

L5331

L5361

Q5331

R5334

R5335

R5361

6

5

4

3

2

1

Q5441

C5437L5440

L5441

654

R5421

C5422

C5436

C5482

L5421

C5438

C5439

L5436

L5437

TP5532

C0401

C0402

C0403

C0406

C0407

C0408

C0409

C0410

C0411

R041212

C5407

C5409

C5412

C5414

C5416

C5462

C5487

L5411R5405

R5411

R5412

R5427

R5428R5433

R5495

R5497

TP5536

C5424

C5483

L5541

L5543

Q5451

R5414

R5487

R5488

R5513

C5446

C5630

3 2 1

R5485

R5486

R5630

R5631

R5632

TP5537

C5632

R5633

VR5472

C5421

C5484

L5402

Q5431

C0499

C0611

VR0601

C5418C5479

C5502

C5503

C5504

Q5473

R5422

R5423

R5424

R5425

R5431R5480

R5482

R5483

R5484

R5492 R5503

R5514

R5523

TP5533

1

17 9

25

U5501

C0422

C0423

C0485

R0467

C0491

C0492

C0497

C0301

C0303

C0352

C0354

1

458

U0351

C0302

C0351

D0301

28

15

C0304

C0305

C0324

C0325

C0343

R0323

R0324

R0344

C0426

C0427

C0428

C0429

C0430

C0431

R0407

R0409

R0410

C0353

R0331

R0332

R0333

R0335

R0481

R0482

J0401

C0201

C0202

C0203

C0204

C0205

C0254

C0265

C0266C0267

R0201

R0202

R0203

R0204

R0205

R0206

R0207

R0208

R0265

R0266

R0267

TP0221

TP0222

VR0541

14

U0301

C0341

C0344

R0341

R0345

R0346

TP0497

1

458

U0341

C0141

TP0101

16

18 9

U0141

C0342R0342

R0343R0347

U0342

C0331

C0641

C0644

C0645

C0662

Q0641

Q0661

R0641

R0642

R0643

U0331

C0661

C0663

D0660D0661

Q0662

Q0663

R0661

R0662

TP0661

C0622

C0671

D0621R0671

R0672

VR0621

VR0671

C0621

R0621

C0541Q0171

Q0173

R0171

R0172

R0173 R0174

R0175

R0176

R0177

R0178

R0179

R0512

R0525

R0529

R0530

R0541

R0542

R0408

TP0102

C0111

C0112

D0101

R0111

R0401

TP0104

14 5

8

U0111

118

J0552

R0107

C0105

C0121

C0255 R0468

145

8

U0652

U0653

C0103 R0112

R0113

R0117

R0121

TP0103

TP0492

22

21

871

U0122

C0122

C0123

C0558

C0559

C0560

C0575

C0576

C0591

C0592

C0593

40

J0551

R0591

R0592

C0271

C0275

C0276

C0277

E0271

E0272

Q0271

R0273

R0276

C0151

C0272

C0273

C0274

C0554

D0151 Q0151

R0151

R0152

R0274

R0275

R0593

TP0151

VR0151

D0179

Q0183

R0183

R0184

R0511

R0531

R0537

VR0509

VR0537

TP0530

VR0504

E0631

1

UH

F B

and

2 (

450-

520

MH

z) 4

0W 8

4806

45Z

04 B

ott

om

Sid

e

UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-5

9V3

PA

SU

PV

LTG

PA

SU

PV

LTG

_UH

F_P

A_1

9V3_

UH

F_P

A_1

C54

8530

pF

5.6V

VR

5472

R56

3382

0K

C56

02.0

33uF

L540

2

C54

8130

00pF

C56

3210

00pF

ALT

PA

SU

PV

LTG

C54

8430

pF.0

33uF

C54

21C

5497

1000

pF30

00pF

C54

8910

00pF

C54

95C

5436

10uF

C54

9330

00pF

C54

9030

00pF L5

541

C54

7810

00pF

C54

8230

pF

L542

1

0.1u

FC

5438

L543

6

A+

C54

8630

pFC

5418

0.1u

F10

0pF

C54

88

L540

111

.03n

H

C54

0410

0pF

390n

HL5

403

1.8p

FC

5403

C54

070.

1uF

R54

0520

0

30pF

C54

870.

1uF

C54

0910

0pF

C54

12

Load

L541

139

0nH

> 4

dB

m (

Tx)

TX

INJ TX

_IN

J_U

HF

_PA

_1

51R54

97R

5495

51

9V3

L547

4

57R

019V

3

300

R54

01

C54

1010

0pF

C54

0110

0pF

R54

03 300

R54

0215

6

RF

OU

T2

7V

CN

TR

L1

VD

114

VG

12

VG

23

5

GND3 12

GND4 13

NC

18

NC

29

NC

310

NC

415

RF

IN16

RF

OU

T1

U54

0130

C65

EP 17

G2

11

GND1 4

GND2

C54

62R

5433

C54

1710

0pF

C54

61

R54

15 100

C54

477.

5pF

36pF

C54

19

R54

1610

0

C54

53

47pF

C54

31

C54

8310

0pF

13.8

5nH

L554

3

R54

14

C54

24

8

Q54

21

6

2

13457

C54

55

Load

3.7

to 3

.9 V

DC

Q54

51TP

5536

R54

8710

0K

R54

0820

0KC

5425

.022

uFR

5488

2.7K

100p

FC

5426

C54

56C

5457

R54

81

D54

02R

5459

R54

8512

012

0R

5486

1KR56

31R

5607

R54

76

C55

20C

5476

R56

3224

KC

5446

100p

F

C56

300.

1uF

R56

30

2.4

to 2

.6 V

DC

BIA

S_2

_UH

F_P

A_1

MO

SB

IAS

_2

TP

5537

R54

125.

6K

C54

16.0

22uF

10K

R54

27

R54

11

C54

1410

00pF

4.7K

R54

28

100K

R54

80

PC

IC_M

OS

BIA

S_1

6.5

VD

C (

44W

)6.

2 V

DC

(28

W)

R54

2462

0

R54

2362

0

R54

31

620

R54

22

Q54

73

9V3

R54

2562

0

R55

143.

3K

CN

TLV

LTG

_UH

F_P

A_1

CN

TLV

LTG

4.57

VD

C (

44W

)4.

32 V

DC

(28

W)

TP

5533

PA

_PW

R_S

ET

_1_U

HF

_PA

_1P

A_P

WR

_SE

TP

A_P

WR

_SE

T

C54

2039

pF16

pFC

5434

R56

014.

7

4.7

R56

00

R56

024.

7

100p

FC

5422

C54

231u

F

G4

S1S2S3S4

D

G

G1

7

G2

8

G3

9 10

Q54

31M

RF

5015

15pF

C54

32

20pF

C54

35

20pF

C54

5039

pFC

5460

C54

4920

pF

C54

37

L544

0

D54

03

10R54

21

13.8

5nH

L544

1

3

MR

F65

0Q

5441 4

2

1N

U

NU

NU

NU

C54

43

C54

44

C54

66

C54

65

7.5p

FC

5491

30pF

C54

42

C54

4127

pFC

5459

100p

F

D54

71

R54

5712

0

C54

6910

0pF

120

R54

71

D54

52

D54

54

D54

51

C54

52

R54

734.

3K

9V3

R55

0610

K

100K

R54

09

D54

53

C54

6410

0K

R54

74

C54

3910

0pF

L543

717

nH

2.20

VD

C (

28W

)3.

11 V

DC

(44

W)

0R54

75

1000

pFC

5451

100K

R54

55

TP

5531

10K

R55

07

K9V

1

TE

MP

SE

NS

E_U

HF

_PA

1POSU

5502

K9V

1_U

HF

_PA

_1

TE

MP

SE

NS

E

R55

04

10K

9V3

100p

FC

5499

C54

7010

0pF

C55

07

A+

VR

5471

5.6V

R54

72

10K

R55

13

470

R55

12

9.2

VD

C

Q54

71

TP

5530

3J5

401-

3

9pF

C54

48

J540

1-2

2

C54

947p

FL549

117

nH

1J5

401-

1

100p

FC

5492

17nH

L549

217

nHL5

493

4.7p

FC

5498

3.3p

FC

5496

R54

9111

K

C54

63

RX

INR

X_I

N_V

HF

_PA

_117

nHL5

472

C54

7412

pF

D54

72C

5480

2pF

2pF

C54

75

C54

7910

0pF

51R55

1182R

5496

Q54

72

C54

7230

pF

30pF

C55

10

100p

FC

547343

.67n

HL5

473

CLK

CLK

_VH

F_P

A_1

CS

X_V

HF

_PA

_1

DA

TA

CS

X

DA

TA

_VH

F_P

A_1

10K

R54

929V3

0.75

VD

C R55

015.

6K

100p

FC

5521

1000

pF

TP

5532

C55

22

3GNDVO

UT

2

R55

0268

K

300K

R54

82

68K

R54

84

9V3

R55

033.

9K

3.1

VD

C (

44W

)2.

2 V

DC

(28

W)

R55

23R54

8310

0K

ALT

PA

_PW

R_S

ET

C55

0322

00pF

.02u

FC

5504

.015

uFC

5502

2200

pFC

5506

VLIM19

30

V10

14

V45

16

17V5EXT

20VAR1

18 VAR2

24VAR3

15V

G

VL 6

Q11

QX

10

1RFIN

RS21

31R

SE

T

RX23

T1 2

TE

MP

26

CQ

1213C

QX

DA

TA

28

F16

89

GND1 8

GN

D2

25

INT 422

NA

AN

O32

BP

OS

27

CE

X29

CI 3

CJ 5

CL 7

CLK

U55

01

1uF

C55

05

PC

IC_M

OS

BIA

S_1

9V3

RESET

FE_CNTL_2_VHF_PA_1FECTRL_2

FE_CNTL_1_VHF_PA_1FECTRL_1

RESET_VHF_PA_1

UH

F B

and

2 (

450-

520

MH

z) P

ow

er A

mp

lifie

r 40

W

4-6

UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

16_8

MH

z

C52

02.0

1uF

IN_5

V_R

F_R

EG

_UH

F_F

N_1

TR

B

MO

DIN

220

R52

41

C52

510.

1uF

TP

5202

1

.01u

FC

5232

LOC

K_U

HF

_FN

_1

C

5243

100p

F

R52

2251

0

C52

534.

7uF

o

2.2u

FC

5213

C52

09

0.1u

F

U45

06

.01u

FC

5231

CLK

_UH

F_F

N_1

L522

112

uH

47K

R52

28

1000

pFC

5252

150

R52

21

R52

6115

0K

100

R52

63

VD

DA

CLK

16.8

MH

z

XT

AL

Y52

61

1uF

C52

23

VC

NT

L

1

VS

F_U

HF

_FN

_1

Y52

62T

TS

05V

16.8

MH

z

GN

D2

OU

T 3

VC

C4

M

OD

IN_U

HF

_FN

_1

2.2u

F

C52

14

0.1u

FC

5254

D 5

261

5V_U

HF

_FN

_1

150

R52

01

C52

88

0.1u

F

DA

TA

100p

F

C52

27

VD

DA

_UH

F_F

N_1

C52

4610

0pF

C52

05.0

1uF

1.5p

F

C52

63

68

R52

23

C52

35.0

1uF

C52

5510

0pF

C52

22

0.1u

F

1.2K

R52

62

C52

4510

0pF

C52

44

47nH

L522

5

100p

F

T

RB

_UH

F_F

N_1

U

4507

16_8

MH

z_U

HF

_FN

_1C

SX

_UH

F_F

N_1

C52

04

0

R52

11

100p

F

B

WS

ELE

CT

_UH

F_F

N_1

C52

07

100p

FC

5228

0.1u

F

5V

_UH

F_F

N_2

VS

F

C52

110.

1uF

2.4p

F

C52

26

C52

0610

uF

2.2u

FC

5210

220p

FC

5262

47

R52

03

LOC

K

C52

08

0.1u

F

1uF

C52

24

510p

F

C52

25

R52

04

R52

06

47

33K

C52

16.0

1uF

LP29

51U

5211

VC

OB

IAS

_2

C52

12

.018

uF

100p

FC

5287

100p

F

C52

01

2p

FC

5229

C52

30

2.2u

F

2.2u

FC

5233

0.1u

F

C52

89

39K

R52

51

VC

TR

L

T

P52

01

C52

42

PR

ES

C

CS

X

100p

F

L523

1

VC

OM

OD

_UH

F_F

N_1

IN_5

V_R

F_R

EG

2.2u

H

C52

4110

0pF

5A

24

A3

K1

1K

22

K3

3

DA

TA

_UH

F_F

N_1

6A

1

D52

01

C52

21.0

1uF

.01u

F

C52

03

R52

52

30K

VC

TR

L_U

HF

_FN

_1

.01u

FC

5234

L520

139

0nH

62pF

C52

61

5V

5V

2.2u

FC

5215 V

DD

A

VD

DA

U52

014.

57 V

DC

-19

to -

17 d

Bm

(R

x)-1

7 to

-12

dB

m (

Tx)

4.98

VD

C

0 V

DC

(R

x)

3.09

VD

c (R

x)2.

65 V

DC

(T

x)

4.97

VD

C (

25K

Hz

Cha

n. S

paci

ng)

4.97

VD

C (

Tx)

2.48

VD

C

1.76

VD

C (

Tx)

1.69

VD

C (

Rx)

0 V

Dc

(12.

5KH

z C

han.

Spa

cing

)

5 V

DC

(Lo

cked

)0

VD

C (

Unl

ocke

d)

2.5

to 1

0 V

dc

6.6

VD

C10

.87

VD

C

12.7

VD

C

4.97

VD

C

3.03

VD

C

3.76

VD

C

2.51

VD

C

4.95

VD

C0

VD

C

2.48

VD

C

1.25

VD

C

1.97

V

DC

5V

VC

OM

OD

BW

SE

LEC

T

23X

TA

L1X

TA

L224

21V

BP

AS

S

47VCP

VM

ULT

11514

VM

ULT

2

12V

MU

LT3

11V

MU

LT4

VRO 13

25W

AR

P

35P

VR

EF

18R

EF

SE

L

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

17N

C1

29N

C2

31N

C3

44 PD_GND

PD_VDD 5PR

EIN

32

33 PRE_GND34PRE_VDD

36DVDD

19F

RE

FO

UT

45IA

DA

PT

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN

41M

OD

OU

T

20AVDD

40B

IAS

1

39B

IAS

2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6

46A

DA

PT

SW

22 AGND

48A

UX

1

1A

UX

2

2A

UX

3

3A

UX

4

INP

UT

1O

UT

PU

T

2S

EN

SE

3S

HU

TD

OW

N6

5V_T

AP

5E

RR

OR

7F

EE

DB

AC

K

4

GN

D

8

ZW

G01

3036

4-0

HF

Ban

d 2

(45

0-52

0 M

Hz)

FR

AC

N

UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-7

3pF

Q53

31

VC

OM

OD

C53

14

CR

5303

R53

45

C53

34

C53

034.

3pF

220

51pF

100p

F

R53

40

C53

23

C53

15

RX

INJ

1000

pF

VS

F_U

HF

_VC

0

CR

5301

R53

6118

0

GN

D

C53

1710

0pF

0R53

37

VC

OB

IAS

_2

R53

117.

5K

390n

HL5

304

C53

810.

1uF

C53

5110

0pF

C53

530.

1uF

L531

3

L533

133

nH

0.1u

F

390n

H

C53

08

0.1u

F

C53

5239

0nH

L530

5

CR

5311

1

R53

04

RX

INJ_

UH

F_V

CO

PR

ES

C_U

HF

_VC

O

150

R53

127.

5K

4.7u

F

C53

25

Q53

33

10R53

35

10K

100p

F

R53

33

L530

168

nH

C53

09

C53

024.

3pF

C53

37

0

R53

41

51pF

51pF

C53

38

R53

46

10K

SH

IELD

SH

5301

1

VC

OB

IAS

_2_U

HF

_VC

O

56K

R53

21

30

R53

03

R53

14

SH

IELD

122

0

.022

uFC

5336

SH

5302

1K

TX

INJ

390n

H

R53

36

C53

13

L533

3

C53

31

5.6p

F

VC

TR

L_U

HF

_VC

O

C53

73

0.1u

FC

5332

R53

0210

K

390n

H

TR

B_U

HF

_VC

O

TX

INJ_

UH

F_V

CO

L536

1

CR

5321

2.2u

FC

5354

C53

045.

6pF

C53

74

C53

0110

0pF

Q53

01

30R53

13

P2

3P

3

L530

222

0nH

L530

3R

ES

ON

AT

OR

P1

2

C53

39

51pF

10

R53

05

R53

34C53

33

TR

B

0

220

R53

38

5V

100p

FC

5382

100p

FC

5383

15nH

L533

2

PR

ES

C

C53

1110

0pF

10K

R53

23

C53

05

VS

F

C53

75

0.1u

FC

5316

2.2K

R53

42

2.2u

F

C53

63

C53

55

22K

R53

32C

5361

100p

F

6.8K

R53

22

1pF

C53

21

22

R53

31

1P

1

2P2

3P

3

Q53

32

L531

2

RE

SO

NA

TO

R

50U

54U

5301

C53

07

100p

F

CR

5302

5.6K

R53

01

C53

06

2pF

R53

47

0

0.22

uFC

5371

C53

180.

22uF

10R53

44

15pF

R53

3922

R53

15C

5312

VC

OM

OD

_UH

F_V

CO

0

1KR

5343

0.22

uFC

5362

5V_U

HF

_VC

O

68nH

L531

1

100p

F

C53

72

C53

35

68nH

100p

F

C53

24

L537

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GM338Mobile Radio

UHF B1 HIGH POWER LDMOS

(403-470MHz)

Service Information


i

Table of Contents










ii



2.0 UHF 25-40W PCB / Schematics / Parts List ........................................................4-3UHF (403-470 MHz) 25-40W 8486127Z01 Top Side .............................................4-3UHF (403-470 MHz) 25-40W 8486127Z01 Bottom Side.......................................4-4UHF (403-470 MHz) Power Amplifier 25-40W .......................................................4-5UHF (403-470 MHz) FRACN..................................................................................4-6UHF (403-470 MHz) Voltage Controlled Oscillator.................................................4-7UHF (403-470 MHz) Receiver Front End ...............................................................4-8UHF (403-470 MHz) IF ...........................................................................................4-9UHF PCB 8486127Z01 Parts List 25-40W...........................................................4-10

1-1

Section 1





GM Series, UHF Band 1, 403-470 MHzMode Description

AZM25RKF9AA5 GM338 403-470 MHz 25-40W Conv Pref (LDMOS)

Item Description














Weight GM338 1400 g






Transmitter UHF




±2.0 ppm

Power 25-40W



-45 dB @ 20/25kHz





<3% typical

Receiver UHF







75 dB @ 20/25 kHz





-45 dB @ 20/25 kHz


+1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction






Demodulator

1. Crystal Filter




Antenna


from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT


There are two 2-pole 44.85 MHz crystal filters in the high-IF section and 2 pairs of 455 kHz ceramic filters in the low-IF section to provide the required adjacent channel selectivity .The correct pair of ceramic filters for 12.5 or 25KHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.
















The radio’s 40W PA is a three stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U4401) is adjustable, controlled by pin 4 of PCIC (U4501). It is followed by an LDMOS stage (Q4421) and LDMOS final stage (Q4441).



PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2 & Bias 3

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

PADriver



The first stage (U4401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U4401 is controlled by a DC voltage applied to pin 1 from Q4473. The control voltage simultaneously varies the bias of two FET stages within U4401. This biasing point determines the overall gain of U4401 and therefore its output drive level to Q4421, which in turn controls the output power of the PA.

Switch S4440 is a pressure pad with a conductive strip which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S4440 opens and cuts the supply voltage to Q4473 thus disabling control voltage to U4401. This prevents transmitter key up while the devices do not have proper thermal contact to the chassis.


The next stage is an LDMOS device (Q4421) providing a gain of 12dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The bias is set during transmit mode by U4501-24 and fed to the gate of Q4421 via the resistive network R4480, R4408, R4415 and R4416.

3.3 Final Stage

The final stage is an LDMOS MRF 1570 device Q4441. It provides a gain of 11dB. It integrates two MRF1535 die inside. These two die are being run in parallel. The output of each of the device (die) inside are combined to constitute the total output power. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 and MOSBIAS_3 are set in transmit mode by the ASFIC and fed to the gate of Q4441 via two resistive network R4631, R4634, R4485, R4486 and R4632, R4635, R4481, R4489. These bias voltages are tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Global Tuner. Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via L4421, L4437 and L4436, L4438.A matching network consisting of C4440-45, C4466-67, C4476-77, C4487, C4491, C4489, C4490, C4455-56, C4449-50 and striplines transforms the impedance to 50 ohms and feeds the directional coupler.



The directional coupler is a microstrip printed circuit, which couples a small amount of the forward power delivered by Q4441. The coupled signal is rectified by D4451. The DC voltage is proportional to the RF output power and feeds the RFIN port of the PCIC (U4501 pin 1). The PCIC controls the gain of stage U4401 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

3.5 Antenna Switch


3.6 Harmonic Filter

Components L4491-L4493 and L4472, C4448, C4494, C4496 and C4498 form a Butterworth low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R4491 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.7 Power Control



The PCIC provides a DC output voltage at pin 4 (INT) which sets the drain current of the first (U4401). This adjusts the transmitter power output to the intended value. Variations in forward transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.










DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER







Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U4201 Pin28)

VCC Buffers

TX RF Injection

U4201 Pin 32

AUX3 (U4201 Pin 2)

Prescaler Out

Pin 12Pin 19Pin 20


U4301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U4201 Pin 28)

Rx-SW

Tx-SW

Vcc-Logic

(U4201 Pin 28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T4051?

RFSignal at C4015?

No

No

RFSignal at C4025?

No or






Istuning voltage

OK?

No

Yes



Yes

Check T4051, T4052, D4051, R4052, L4008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes



No


collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?


U4211 and U0641.

No

No

No

Check U4501.


No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C4009?



Control Volt-age at

TP4533>1V

Current increase

when keyed?

NOYES

START




VR4471,Q4471

>500mA & <6A>6A

<500mA

Check PA Stages


NO

NO


Check PA Stages YES

YES


DC?


NO

YES


DC

Replace PCIC U4501

NO

YES

TP4530 9.1V DC



FGU

YES

NO

TP4531 >0.5V DC?

Replace PCIC U4501


Check Forward Power Sense Circuit (D4451)NO

YES


DC?




Put in pressure pad

YES

NO

1

Is Q4473 OK?

Change Q4473

NO

YES

Check voltage on pin 4 U4501

NO

YES

Check R4422-5 and go back to top

1



Check PA Stages

YES

Check MOSBIAS_2/MOSBIAS_3

YES

Are D4471 & D4472 OK?

Check ASFIC

NO

YES

Check Q4421 gate (12kohm) and drain resis-tances (15kohm)

NO Change Q4421

Is drive from VCO

>+4dBm?

Do visual check on all components

YES

Is voltage drop across R4497

>4.5V?

NO

1

Check PCIC_MOS

BIAS_1

Check PCIC

Change D4471 & D4472

Check Q4441 gate (63kohm) and drain resis-tances (15kohm)

NO

YES

Change Q4441

NO

Change U4401

YESYES

NO

NO

Troubleshoot VCO

Troubleshooting Flow Chart for Synthesizer 3-5


5V at pin 6 of

D4201

Isinformation


?


?

IsU4301 Pin 19


?

Start

Visual check of the

BoardOK?

CorrectProblem


+5Vat U4201

Pins13 & 30

?

Is16.8MHz


?


associated parts

Aresignals

at Pins 14 &15 of U4201

?


IsU4201


in Rx?

Replace U4201

RemoveShorts

Isthere a short


U4201?

Replace orresolder

necessarycomponents

IsRF level at

U4201 Pin 32 -12 < x <-25

dBm?

AreR4221,R4222,R4223,C4221,

C4222 & C4223 OK?

Replace U4201


AreWaveforms


?

DoPins 7,8 & 9


changed?


U0101 and U4201Pins 7, 8 & 9

Replace U4201


Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YESYESNO

NO

NO

NO

YES

NO

YES

YES

Check D4201, C4202, C4203, &

C4206

5V at U4201

pins 5, 20, 34 & 36

Check 5V Regulator

U4211


U4201 Pin 23?

Replace U4201

YES

NO

NO

YES

NO

YES










OK?


NO

YES

Replace Q4301

at base of Q4332

NO

NO

NO

NO

YES

YES

YES

YES




YES

YES

YES

YES

NO

NO

NO

NO

NO


4.5VDCat CR4321


Replace C4322

Replace C4325

NO

NO

YES

YES


TX VCORX VCO

CorrectProblem


OK?


and U4301 Pin 19


replace U4301


replace Q4332


OK, Replace Q4332





replace U4301

YES YES


4.5V DC

OK ?

OK? OK?

C4325

at U4301 Pin 14 & 18 4.5V DC

OK ?at U4301 Pin 14 &18

NO

4-1

Section 4







Page 4-3Page 4-4




UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

3

2.0

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

C0108

C0211

C0212

C0251

C0252

R0103

R0211

R0212

R0251

R0252

R0253

R0257

16

1

89

U0251

C0253

C0256

C0261

C0262

R0256

R0268 R0269

87

114

U0211

C0421

C0441 C0442C0443

C0445 C0446C0447

Q0110

R0222

R0261

R0262

R0442

C0104

C0106

C0224 C0226

C0227

C0228

C0232

C0233

C0236

C0237

C0495

R0101

R0102

R0104

R0108

R0110

R0115

R0116

R0226

R0227

R0228

C0221

C0222

C0225

C0241

C0243

R0220

R0221

R0223

R0224

R0229

R0254 R0255

C0235

C0242

C0244

C0245

C0246

C0496

D0201

R0241

R0242

137 25

13

U0221

R0681

C0101C0102

C0131

C0132

R0105

R0106

R0114

R0131

R0132

R0170

51

32

17

4

Y0131

16

1

U0121

126

U0101

C0223

C0231

C0234

C0651

C0652

D0651

R0225

R0651

R0652

3

2

1

U0651

C0482

C0483

C0487

C0488

C0493

C0494

C0654C0681

L0481

L0482

Q0681

R0682

C0486

C0655

C0542

Q0177

Q0181

Q0185

R0181

R0182

R0185

R0186

R0510

R0535

R0538

R0539

VR0501

VR0503

VR0505

VR0510

C0501

C0502

C0503

C0504

C0505

C0506

C0508

C0509

C0510

C0511

C0512

C0513

C0514

C0515

C0516

C0517

C0518U0271

76 20

11

10

J0501

R0508

R0509

J0601C0484

C0601

C0603

C0612

R0533

R0611

R0612

1

6

5

U0611

C4417

C4419

C4425

C4426

C4431

C4447

C4453

C4454

C4457

C4461

C4462

C4481

M3421

R4408 R4415

R4416

R4480

C4420

C4427

C4428

C4429

C4430

C4432

C4433

C4434

C4435

C4440

C4441

C4446

C4458

L4474

321 45678

Q4441

R4417

R4418

C4485

C4489

C4490

C4495

C4497

C4602

C4442

C4443

C4449

C4466

C4476

C4478

C4491

C4493

L4489

C4401

C4403

C4404

C4407

C4410

C4418

C4488

C4505

C4506

L4401

L4403

Q4471

R4401R4402

R4403

R4405

R4504TP4530

116

89

U4401

Q4472

R4511

R4512

VR4471

C4444

C4445

C4450

C4455

C4456

C4467

C4477

C4487

C4521

C4522

L4490

R4501

R4502

U4502

C4459

C4507

18

1

J0451

C0448

C0449

C0470

C0471

C0472

C0473

C0474

C0476

C0477

C0478

C0490

C4472

C4474

C4475

C4480

C4510

D4471

D4472

L4472

L4473

C4001

C4002

C4009

C4014

C4026

C4027

D4001

D4002

D4003

L4001

L4002

L4006

Q4001

Q4003R4003

R4004

R4020

R4022

C4317 C4318

C4322

C4323

C4325

C4351C4352

C4355

C4382

1 3

L4312

L4313

R4302

R4311

R4312

R4321

C4308C4309

C4353

C4383

1 3

L4303

L4304

L4305

Q4301 R4301

R4305

R4346

C4375

43

Q4333

C4331

C4332

C4335

C4337

C4339

C4354

C4371

C4372

C4373

C4374

L4331

L4371

R4331 R4332

R4333

R4337R4341

R4343

R4345

SH4301

C4031

C4053

C4054

C4055

D4051

L4008

L4053

L4054

R4051

21 5

43

T4051

215

4 3

T4052

C3101

23 4

5

FL3101

L3100

R3148

C4051

C4052

L4051 R4013

R4014

R4015

C4015

C4016

C4017

C4018

C4019

C4020

C4021

C4022

C4023

C4029

C4030

C4065

C4068

D4004

D4005

D4006

L4003

L4004

L4005

R4005

R4007

R4012

R4064

R4066

C4003

C4004

C4005

C4006

C4007

C4008

6

C3102

C3103

23 4

56

FL3102

L3101

R3101

R3106

C3114

C3115

C3124

C3131

C3132

C3133

C3134

C3135

C3136

C3137

C3143

L3124

R3111

R3117

R3124

R3130

R3132

R3135

11

120

10

U3101

R3123

C3140

C3141

C3142

87

114U3111

2

C3139

R4001

C3145 C3148

43

FL3112

FL3114

R3142

R3144

R3145

87

114

U3115

2

Y3102

C4221

C4222

C4223

C4224

C4225

C4226

C4227

C4229

C4230

C4231

C4236

C4253

D4221

L4221

Q4221

R4221

R4222

R4223

R4224

R4225

R4227

C4210

C4213

C4216

C4217

C4242

C4243

C4245

C4289

L4201

R4211

U4211 C4214

C4215

C4244

C4246

C4232

C4233

C4234

C4251

C4252

C4254

C4255

R4251

R4252

23

9

1

6

5

U0641

C0107

32

J4401

UH

F (

403-

470

MH

z) 2

5-40

W 8

4861

27Z

01 T

op

Sid

e

4-4

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

432

Y3101

C3122

C3123

D3101

Q3102

R3113

R3114

R3115R3116

R3133

C3116

R3118

C3121

L3112

R3112

C3104

C3110

C3111

C3112

C3113

L3111Q3101

R3102

R3104

R3105

R3107

R3108

C3144

C3146C3147

C3151

C3152

Q3141

Q3151

Q3152

R3134

R3141

R3146

R3147

R3151

R3152

R3153

R3154

43 2

FL3111

FL3113

43 2FL3115

C4261

C4262

C4263D4261

R4261

TP4201

TP4202

43 1

Y4261

2 34

Y4262

6

C4235

R4263

L4231

C4201

C4202

C4203

C4204 C4205

C4206

C4207

C4208

C4209

C4211

C4228

C4241

C4287

C4288

D4201

R4201

R4203

R4204

R4206

R4228

R4241

R4262

137

25

13

U4201

C0422C0423 C0426C0427 C0428C0429

C0485

C0491

C0492

C0497

J0401

R0407R0409

R0467

12

C0430 C0431

F0401

R0412R0441

C0201

C0202

C0203

C0204

C0205

C0254

C0265

C0266

C0267

R0201

R0202

R0203

R0204

R0205

R0206

R0207

R0208

R0265

R0266R0267

R0408

TP0102

TP0221

TP0222

VR0541

C0105C0121

C0122

C0123

C0255

R0107

R0468 R0543

R0555

R0593

145

8U0652

U0653

C4301

C4302

C4303

C4304

C4305

C4306

C4307

C4316

CR4301

CR4302

CR4303

L4301

L4302

R4303

R4304

R4315

11

120

10

U4301

C4311

C4312

C4313

C4314

C4315

C4319

C4321C4324

C4381

CR4311

CR4321 L4311

R4313

R4314

R4322

R4323

R4381

C4010

C4011

C4012

C4013

C4028

C4061

C4062

C4064

C4067

C4069

D4007

Q4002

Q4004

R4002

R4016

R4017

R4018

R4061

R4062

R4063

R4068

R4069

R4070

R4071

R4072

C4025

C4024

C4060

C4066 R4052

R4053

R4054

R4055

R4060

C4451

C4463

C4469

C4470

C4473

C4499

D4452

R4455

R4457

R4472

R4475

R4496

TP4531

VR4473

C4494

C4498

L4491

L4493

C4448

C4496

L4492

R4491

C4452

C4464

D4451

D4453

R4409R4473

R4474

R4506

R4507

R4471

TP4532

C4492

C4336 L4333

R4019

SH4302

TP4003

C4333

C4334

C4338

C4361

C4362

C4363

C4364

C4365

L4332

L4361

L4362

Q4331

Q4332

R4334R4335

R4336

R4338

R4339

R4340

R4342

R4344

R4347

R4360

R4361

R4362

R4363

C4422

C4423

C4437

C4439

L4421

L4436

L4437

L4438

C4424

C4629

C4630

C4631

C4632

Q4451

R4414

R4440

R4481

R4485

R4486

R4487

R4488

R4489

R4630

R4631

R4632

R4634

R4635

S4440

TP4537

TP4538

C4421

C4436

C4438

C4483

C4484

L4402

L4541

L4543

12

3

Q4421

R4513

R4525

TP4536

C0499

C0611

E0631

VR0601

R4495

R4497

C4402

C4405

C4409

C4412

C4413

C4414

C4415

C4416

L4404

L4411

Q4473

R4412R4428

R4431

R4482

R4484

R4503

TP4533

C4502

C4503

R4422

R4423

R4424R4425

R4483

R4514

R4523

C4504

C4479

1

17 9

25

U4501

R4492

C0304C0305

C0324C0325

C0343

R0323

R0324

R0341

R0344

R0345

TP0497

28

15

C0331

C0353

C0354

C0641

C0644

C0645

C0662 C0663

C0671

Q0641

Q0661

Q0662

Q0663

R0331 R0332R0333

R0335

R0481

R0482

R0641

R0642

R0643

R0661

R0662

R0671R0672

TP0661

U0331

C0301

C0302

C0303

C0351

C0352

D0301

14

1

U0301

458 U0351

C0344R0346

1

458

U0341

C0111

C0112

C0141

C0341

C0342

D0101

R0342

R0343

R0347

R0401 TP0101

TP0104

14 5

8

U0111

161

U0141

U0342

8 9

R0111

R0117

C0103

118

J0552

R0112

R0113

R0121

TP0103

TP0492

21

8

U0122

22

71

C0151

C0271

C0272

C0273

C0274

C0554

C0593

D0151

Q0151

Q0271

R0151

R0152

R0273

R0274

R0275

R0276

TP0151

VR0151

C0558

C0559 C0560

C0591

C0592

R0591

R0592

C0575 C0576

C0275

C0276

C0277

E0271

E0272

140

J0551

C0621C0622

C0661

D0621

D0660

D0661

R0173

R0174

R0621

VR0621

VR0671

C0541

D0179

Q0171

Q0173

Q0183

R0171

R0172

R0175R0176

R0177 R0178

R0179

R0183

R0184

R0511

R0512

R0525

R0529

R0530

R0531

R0537

R0541

R0542

TP0530

VR0504

VR0509

VR0537

R0556

UH

F (

403-

470

MH

z) 2

5-40

W 8

4861

27Z

01 B

ott

om

Sid

e

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

5

PA

SU

PV

LTG

_UH

F_P

A_1

PA

SU

PV

LTG

PA

SU

PV

LTG

9V3

9V3_

UH

F_P

A_1

C46

02

.033

uF30

00pF

C44

81C

4485

30pF

L440

2

30pF

C44

84

.033

uF

C44

21

1000

pF

C44

95

NU

NU

C44

90

1000

pF

C44

97

C44

89

BLM

31A

02P

T

L447

4

L454

1

NU

C44

9310

00pF

C44

78C

4436

10uF

NU

0.1u

F

C44

38

17nH

L443

7

L442

1

C44

2310

0pF

C44

22N

U10

0pF

C44

39L4

438

17nH

C44

37

L443

6

NU

NU

13pF

C44

42C

4466

30pF

C44

416.

8pF

C44

43C

4491

3.3p

FC

4476

NU

NU

C44

45

6.8p

F3.

3pF

C44

8713

pFC

4444

C44

67C

4440

30pF

C44

77

100K

R44

09

9V3

L449

0

12.7

7nH

12.7

7nH

L448

9

NU

C44

55

C44

49

3.9p

F

NU

R44

71

NU

C44

50

3.9p

FC

4456

120

R44

57

100p

F

C44

5910

0pF

C44

69

D44

71

C44

9210

0pF

17nH

L449

2L4

491

17nH

17nH

L449

3

10pF

C44

94C

4448

12pF

6.2p

FC

4498

C44

96

6.2p

F

R44

91

11K

RX

IN

RX

_IN

_VH

F_P

A_1

NU

12pF

C44

74

C44

802p

FC

4475

L447

217

nH

D44

72

NU

5.6V

VR

4473

D44

52C

4463

D44

51

NU

R44

73

4.3K

C44

52

NU

NU

100p

F

C44

99

R44

72

100p

F

C45

07

R45

06

10K

10K

R45

13

C44

70

A+

9.2

VD

CT

P45

30

CLK

R45

04

10K

Q44

71

K9V

1_U

HF

_PA

_1

470

R45

12

K9V

1

TE

MP

SE

NS

E

0R44

75

TE

MP

SE

NS

E_U

HF

_PA

9V3

1POS

VO

UT

2

U45

02

3GND

NU

NU

C44

05

C44

02

TX

INJ

NU

L440

4 3.9p

FC

4403

L440

1

11.0

3nH

C44

0410

0pF

0.1u

FC

4407

R44

05

200

4 to

6 d

Bm

TX

_IN

J_U

HF

_PA

_1

100p

F

C44

1010

0pF

C44

01

R44

0215

300

R44

0130

0R

4403

CN

TLV

LTGCN

TLV

LTG

_UH

F_P

A_1

3.3K

R45

14

C44

180.

1uF

51R44

97

C44

8810

0pF

390n

HL4

403

100p

FC

4412

390n

HL4

411

NU

NU

NU

NU

NU

C44

09

0.1u

F

1

C44

3127

pF

L454

313

.85n

H

C44

53

R45

25

C44

24

C44

54

4.7p

FR

4414

C44

58C

4457

36pF

Load

POS1

Q44

21

2

3

NU

C44

83

100p

F

9V3

1

VD

114

VG

12

VG

23

13

NC

18

NC

29

NC

310

NC

415

RF

IN16

RF

OU

T1

6

RF

OU

T2

7V

CN

TR

L

U44

01

30C

65

EP17

G2

11

GND14

GND25

GND312

GND4

C44

1710

0pF

NU

NU

NU

C44

47C

4419

C44

61C

4462

39pF

100

R44

15R

4416

100

M34

21

HE

AT

SIN

K

.022

uFC

4416

.022

uF

C44

14

100p

F

C44

15

100p

F

C44

13

1.8K

R44

28

R44

12

2K

3.7

to 3

.9 V

DC

NU

NU

NU

Q44

51

.022

uF

C44

2520

K

R44

08

100p

F

C44

26

R44

88

R44

87

TP

4536

Load

10K

R44

80

PC

IC_M

OS

BIA

S_1

620

R44

24

620

R44

23

620

R44

22

NU

R44

31

R44

25

620

6.2

VD

C (

28W

)

6.5

VD

C (

44W

)Q

4473

R44

40N

U

S44

40

SW

ITC

H

9V3

PA

_PW

R_S

ET

PA

_PW

R_S

ET

_1_U

HF

_PA

_1

PA

_PW

R_S

ET

NU

BIA

S_2

_UH

F_P

A_1

TP

4537

R46

30

MO

SB

IAS

_2

100p

F

C46

32

0.1u

F

C46

3110

0K

R46

34

4.4

VD

C (

28W

)

4.5

VD

C (

44W

)

TP

4533

NU

NU

C44

34

3.9p

FC

4446

150p

F

R44

17

C44

29

C44

33

47pF

12pF

C44

20

51R44

95

9V3

NU

NU

3.9p

FC

4427

C44

3512

pFC

4430

R44

18

150p

F

C44

28

47pF

C44

32

51R

4485

R44

8651

51R

4481

R44

89

51

C46

30

0.1u

F

R46

35

100p

F10

0K

C46

2947

K

R46

31

47K

R46

32

MO

SB

IAS

_3

BIA

S_3

_UH

F_P

A_1

TP

4538

GND5

GND6

IN1

IN2

OU

T1

OU

T2

Q44

41

GND1

GND2

GND3

GND4

NU

D44

53

C44

6410

0K

R44

74

R45

07

10K

NU

2.2

VD

C (

28W

)

3.11

VD

C (

44W

)

NU

TP

4531

R44

55C

4451

36pF

C44

72

C45

10

36pF

82R

4496

C44

73

100p

F51R45

11V

R44

71

5.6V

43.6

7nH

L447

3

Q44

72

PC

IC_M

OS

BIA

S_1

CS

X

DA

TA

DA

TA

_VH

F_P

A_1

10K

R44

92

CS

X_V

HF

_PA

_1

CLK

_VH

F_P

A_1

9V3

0.75

VD

CT

P45

32

R45

01

24VAR3

15V

G

VL6

VLIM19

RX23

T12

TE

MP

30

V10

14

V45

16

17V5EXT

20VAR1

18VAR2

GN

D2

25

INT4

22NA

Q11

QX

10

1RFIN

RS21

31R

SE

T

CJ5

CL7

CLK

26

CQ

1213C

QX

DA

TA

28

F16

89

GND18

U45

01

AN

O32

BP

OS

27

CE

X29

CI3

C45

22

1000

pF

20K

R44

84

100p

FC

4521

6.8K

27K

R45

02R

4503

1K

100K

R44

82

9V3

NU

3.1

VD

C (

44W

)

2.2

VD

C (

28W

)

R44

8310

0K

R45

23

C45

03

470p

F

2200

pF

C45

02

.0

1uF

C45

04

ALTPA

_PW

R_S

ET

C45

0622

00pF

1uF

C45

05

9V3

C44

7910

0pF

FE_CNTL_1_VHF_PA_1

RESET

FECTRL_1

RESET_VHF_PA_1

FE_CNTL_2_VHF_PA_1

FECTRL_2

J440

1-3

3

J440

1-2

2

J440

1-1

1

A+

UH

F (

403-

470

MH

z) P

ow

er A

mp

lifie

r 25

-40W

4-6

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

NU

0 V

DC

(R

X)

NU

NU

3.43

VD

C

3.05

VD

C (

RX

)

NU

4.97

VD

C2.

48 V

DC

NU

NU

4.58

VD

C

3.79

VD

C

2.48

VD

C

4.97

VD

C (

25K

HZ

Cha

n. S

paci

ng)

1.78

VD

C (

Rx)

4.97

VD

C (

TX

)

5 V

DC

(Lo

cked

)

10.8

7 V

DC

1.28

VD

C

NU

NU

NU

0 V

DC

(U

nloc

ked)

2.63

VD

C (

TX

)

VD

C

4.97

VD

C

NU

0 V

DC

(12

.5K

HZ

Cha

n. S

paci

ng)

2.52

VD

C

2.5

to 1

1 V

DC

1.76

VD

C (

Tx)

30m

V -

80m

V R

MS

12.7

VD

C

0 V

DC

4.97

VD

C

NU

1.8p

F

(SO

UR

CE

)

NU

3.48

6.68

VD

C

TP

4201

C42

04

100p

F

R42

0447

2.2u

FC

4214

INP

UT

8O

UT

PU

T1

SE

NS

E2

SH

UT

DO

WN

3

U42

11LP

2951

5V_T

AP

6

ER

RO

R5

FE

ED

BA

CK

7

GN

D 4

TR

B_U

HF

_FN

_1

D42

01

A1

6A

25

A3

4

1K

12

K2

3K

3

16.8

MH

z

GN

D2

OU

T 3

4V

CC

1

VC

NT

L

C42

11

Y42

62

C42

28

0.1u

F

.01u

FC

4205

VC

TR

L

47R

4203

C42

16

5V

C42

241u

F

DA

TA

C42

36.0

47uF

VC

OM

OD

_UH

F_F

N_1

IN_5

V_R

F_R

EG

0.1u

F

C42

08

C42

332.

2uF

R42

2847

K

10uF

C42

06

C42

540.

1uF

VC

OB

IAS

_2_U

HF

_FN

_1

C42

26

C42

090.

1uF

47K

R42

61

.01u

F

C42

03

VC

TR

L_U

HF

_FN

_1

C42

102.

2uF

100

R42

63

39K

R42

51

510

R42

22

C42

0110

0pF

R42

5230

K

16_8

MH

z

C42

32.0

1uF

R42

2447

K

C42

23

R42

62

100p

FC

4245

2.2u

H

C42

29

L423

1

R42

01

150

C42

62

CLK

_UH

F_F

N_1

150

PR

ES

C

R42

21

16_8

MH

z_U

HF

_FN

_1

100p

F

VC

OB

IAS

_2

VS

F

C42

44

D42

61

.01u

FC

4231

PR

ES

C_U

HF

_FN

_1

.018

uF

C42

12

390n

HL4

201

C42

4210

0pF

4.7u

FC

4253

BW

SE

LEC

T_U

HF

_FN

_1

MO

DIN

VC

OM

OD

.01u

FC

4221

0

C42

220.

1uF

R42

11

2.2u

FC

4215

C42

07

12uH

L422

1

0.1u

FC

4251

100p

FC

4241

C42

43

1000

pF

VS

F_U

HF

_FN

_1

C42

52

.01u

FC

4235

LOC

K

2.2u

FC

4213

C42

61

MO

DIN

_UH

F_F

N_1

XT

AL1

2324X

TA

L2

5V_U

HF

_FN

_1

VB

PA

SS

21

VC

P 47

15V

MU

LT1

VM

ULT

214

VM

ULT

312

VM

ULT

411

13VRO

WA

RP

25

PV

RE

F35

RE

FS

EL

18

SF

BA

SE

27S

FC

AP

26

SF

IN30

SF

OU

T28

TE

ST

137

TE

ST

238

NC

117

NC

229

NC

331

PD_GND44 5PD_VDD

32P

RE

IN

PRE_GND33 PRE_VDD 34

DGNDDVDD 36

FR

EF

OU

T19

IAD

AP

T45

IND

MU

LT16

IOU

T434

LOC

K

MO

DIN

10

MO

DO

UT

41

AVDD20B

IAS

140

BIA

S2

39

CC

OM

P42

CE

X9

CLK

8

DA

TA

7

6

AD

AP

TS

W46

AGND22

AU

X1

48A

UX

21

AU

X3

2A

UX

43

U42

01

63A

27

R42

06

VD

DA

_UH

F_F

N_1

5V_U

HF

_FN

_2

R42

25

47K

100p

FC

4246

C42

25

510p

F

LOC

K_U

HF

_FN

_1

D42

21

.01u

F

C42

02

L422

5

15nHIN

_5V

_RF

_RE

G_U

HF

_FN

_1

2.2u

FC

4230

100p

FC

4255

CS

X

R42

23

68

CS

X_U

HF

_FN

_1

DA

TA

_UH

F_F

N_1

OU

T3

IN6

VD

DA

Y42

6175

Z04

16.8

MH

z

1G

ND

4G

ND

10.

1uF

C42

63

TR

B

CLK

R42

41

220

C42

34.0

1uF

C42

27

8.2p

F

C42

88

TP

4202

BW

SE

LEC

T

Q42

21

C42

8710

0pF

C42

89

5V

5V

0.1u

F

VD

DA

VD

DA

In c

ase

Y32

61 is

use

d in

stea

d of

Y32

63,

repl

acem

ent o

f the

follo

win

g pa

rts

req

uire

s

new

tem

pera

ture

com

pens

atio

n of

the

freq

uenc

y:

Y32

61, U

3201

, R32

61, R

3262

, C32

62, D

3261

HF

(40

3-47

0 M

Hz)

FR

AC

N

ZW

G01

3052

1-B

UH

F 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t4-

7

NU

NU

NU

0 V

DC

(T

x)

NU

NU

NU

NU

2.5

- 11

VD

C

0 V

DC

(R

x)

4.58

VD

C

4.58

VD

C

NU

NU

13.5

to 1

6 dB

m

NU

0 V

DC

(T

x)

3.1

VD

C (

Rx)

0 V

DC

(T

x)4.

7 V

DC

(R

x)

NU

(Tx)

4.54

VD

C0

VD

C (

Tx)

2.35

VD

C

NU

0 V

DC

(R

x)

4.42

VD

C (

Rx)

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

4.97

VD

C (

Tx)

-18

to -

16 d

Bm

(R

x)-1

6 to

-11

dB

m (

Tx)

4 to

6 d

Bm

4.54

VD

C

4.54

VD

C (

Tx)

2.6

VD

C (

Tx)

1.91

VD

C (

Tx)

0 V

DC

(R

x)

2.45

VD

C (

Rx)

(Rx)

2.43

VD

C (

Rx)

NU

NU

GN

D

C43

0110

0pF

30R43

13

C43

72

VC

TR

L_U

HF

_VC

O

L433

133

nH

VS

F_U

HF

_VC

0

C43

180.

1uF

Q43

01

R43

6118

0

C43

0551

pF

C43

37R

4332

CR

4303

C43

82

VC

OB

IAS

_2

5V_U

HF

_VC

O

C43

32

0

R43

15

CR

4311

C43

81

C43

13

.022

uFC

4336

R43

45

SH

4301

SH

IELD

R43

0210

K

C43

83

C43

63

R43

33

R43

125.

6K

C43

09

100p

F

C43

1510

0pF

19T

RB

_IN

16T

X_B

AS

E15

TX

_EM

ITT

ER

1T

X_I

AD

J10

TX

_OU

T

13T

X_S

WIT

CH

14

VC

C_B

UF

FE

RS

18

VC

C_L

OG

IC

GN

D_L

OG

IC17

12P

RE

SC

_OU

T5

RX

_BA

SE

6R

X_E

MIT

TE

R

2R

X_I

AD

J8

RX

_OU

T

7R

X_S

WIT

CH

3S

UP

ER

_FLT

R

U43

01

4C

OLL

_RF

IN

20F

LIP

_IN

11

GN

D_B

UF

FE

RS

9

GN

D_F

LAG

R43

46

10K

50U

54

L431

2

RE

SO

NA

TO

R

1P

1 2 P2

3P

3

C43

141.

5pF

C43

07

100p

F

C43

520.

1uF

C43

21

Q43

31

1pF

4

1 3

CR

4301

Q43

33

2

6

C43

39

C43

75

L433

2

L436

139

0nH

VC

TR

L

0

R43

41

C43

242.

4pF

2.2K

R43

42

6.8p

F

TR

B_U

HF

_VC

O

C43

31

C43

043.

9pF

C43

33

C43

74

C43

35

100p

F

270

R43

14

7.5K

R43

11

TX

INJ_

UH

F_V

CO

R43

34

R43

01 L430

139

0nH

R43

23

5.6K

100K

1KR

4343

C43

530.

1uF

C43

12

12pF

390n

HL4

305

C43

23

R43

37

C43

17

PR

ES

C

Q43

32

68nH

L433

339

0nH

L437

1

56K

R43

21

R43

05

C43

16

10

0

5V

0.1u

F

R43

47C

4338

R43

36

51pF

2.2u

FC

4354

C43

5110

0pF

22

R43

31

C43

73

R43

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GM338Mobile Radios

UHF B2 HIGH POWER LDMOS (450-520 MHz)

Service Information


i

Table of Contents






3.0 UHF (450-520 MHz) Transmitter Power Amplifier (PA) 40W...............................2-33.1 First Power Controlled Stage..........................................................................2-43.2 Power Controlled Driver Stage .......................................................................2-43.3 Final Stage .....................................................................................................2-43.4 Directional Coupler .........................................................................................2-43.5 Antenna Switch...............................................................................................2-53.6 Harmonic Filter ...............................................................................................2-53.7 Power Control.................................................................................................2-5




ii



2.0 UHF Band 2 25-40W PCB / Schematics / Parts List ...........................................4-3UHF Band 2 (450-520 MHz) 40W 8486250Z02 Top Side......................................4-3UHF Band 2 (450-520 MHz) 40W 8486250Z02 Bottom Side................................4-4UHF Band 2 (450-520 MHz) Power Amplifier 40W ................................................4-5UHF Band 2 (450-520 MHz) FRACN .....................................................................4-6UHF Band 2 (450-520 MHz) Voltage Controlled Oscillator ....................................4-7UHF Band 2 (450-520 MHz) Receiver Front End...................................................4-8UHF Band 2 (450-520 MHz) IF...............................................................................4-9UHF Band 2 PCB 8486250Z02 Parts List 25-40W.............................................. 4-10

1-1

Section 1






AZM25SKF9AA5 GM338 450-520 MHz 25-40W (LDMOS)

Item Description




X RAE4156_ BNC 470-494 MHz, 3.5 Gain Roof Mount








Weight GM338 1400 g






Transmitter UHF




±2.0 ppm

Power 25-40W



-45 dB @ 20/25kHz





<3% typical

Receiver UHF







75 dB @ 20/25 kHz





-45 dB @ 20/25 kHz


+1 to -3 dB


2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the UHF circuits in the radio. For details of the theory of operation and troubleshooting for the associated Controller circuits refer to the Controller Section of this manual.



The UHF receiver, shown in Figure 2-1, is able to cover the UHF range from 450 to 520 MHz. It consists of four major blocks: front-end bandpass filters and pre-amplifier, first mixer, high-IF, low-IF and receiver back-end . Two varactor-tuned bandpass filters perform antenna signal pre-selection. A cross over quad diode mixer converts the signal to the first IF of 44.85 MHz. Low-side first injection is used.


Demodulator

1. Crystal Filter





from FGU

Recovered Audio

RSSI

Second LO

2. Crystal Filter





Sw

itch

Sw

itch

Sw

itch

Sw

itch

Limiter

1. IF Amp

2. IF Amp


Harmonic Filter

BWSELECT


The two 2-pole 44.85 MHz crystal filters in the high-IF section and two pairs of 455 kHz ceramic filters in the low-IF section provide the required adjacent channel selectivity .The correct pair of ceramic filters for 12.5 or 25KHz channel spacing is selected via control line BWSELECT. The second IF at 455 kHz is mixed, amplified, and demodulated in the IF IC. The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section.


The received signal from the radio’s antenna connector is first routed through the harmonic filter and antenna switch, which are part of the RF power amplifier circuits, before being applied to the receiver pre-selector filter (C5001, C5002, D5001, and related components). The 2-pole pre-selector filter, tuned by the varactor diodes D5001 and D5002, pre-select the incoming signal (RXIN) from the antenna switch to reduce spurious effects to the stages that follow. The tuning voltage (FECTRL_1), ranging from 2 volts to 8 volts, is controlled by pin 20 of PCIC (U5501) in the transmitter section. A dual hot carrier diode (D5003) limits any inband signal to 0 dBm to prevent damage to the pre-amplifier.

The RF pre-amplifier is an SMD device (Q5003) with collector base feedback to stabilize gain, impedance, and intermodulation. The collector current of approximately 11-16 mA is drawn from the 9.3 volt supply via L5003 and R5002. A 3dB pad (R5006,R5007, R5011, and R5008 - R5010) stabilizes the output impedance and intermodulation performance.

A second 2-pole varactor tuned bandpass filter provides additional filtering of the amplified signal. Varactor diodes D5004 and D5005 are controlled by the same signal, FECTRL_1, which controls the pre-selector filter. A following 1 dB pad (R5013 - R5015) stabilizes the output impedance and intermodulation performance.


The signal from the front-end is converted to the first IF (44.85 MHz) using cross-over, quad diode mixer D5051. Its ports are matched for incoming RF signal conversion to the 44.85 MHz IF using low side injection via matching transformers T5051 and T5052. The injection signal (RXINJ) coming from the RX VCO buffer (Q5332) is filtered by the lowpass filter consisting of L5053, L5054, and C5053 - C5055 followed by matching transformer T5052 which has a level of approximately 15dBm.

The mixer IF output signal from transformer T5501, pin 2 is fed to the first two-pole crystal filter (FL3101). The filter output in turn is matched to IF amplifier Q3101 which is actively biased using collector-base feedback resistors R3101and R3106 to provide a current drain of approximately 5 mA drawn from the 5 volt supply. The output impedance of this device is matched to the second two-pole crystal filter FL3102. The signal is further amplified by a preamplifier Q3102 before going to pin 1 of IFIC (U3101).

A dual, hot carrier diode (D3101) limits the filter output voltage swing to reduce overdrive effects at RF input levels above -27 dBm.

UHF (450-520 MHz) Transmitter Power Amplifier (PA) 40W 2-3


The 44.85 MHz first IF signal from the second IF amplifier feeds the IF IC (U3101) at pin1. Within the IF IC the 44.85 MHz high IF signal mixes with the 44.395 MHz second local oscillator to produce a low IF signal of 455 kHz. The second LO frequency is determined by crystal Y3101. The second IF signal is amplified and filtered by an external pair of 455 kHz ceramic filters (FL3112 and FL3114) for 20/25 kHz channel spacing, or FL3111 and FL3113/F3115 for 12.5 kHz channel spacing. These pairs are selectable via BWSELECT. The filtered output from the ceramic filters is applied to the limiter input pin of the IF IC (pin 14).

The IF IC contains a quadrature detector using a ceramic phase-shift element (Y3102) to provide audio detection. Internal amplification provides an audio output level of 120 mV rms (at 60% deviation) from U3103, pin 8 (DISCAUDIO) which is fed to ASFIC_CMP U0221, pin 2 (part of the controller circuits).

A received signal strength indicator (RSSI) signal is available at U3101, pin 5, which has a dynamic range of 70 dB. The RSSI signal is interpreted by the µP (U0101, pin 63) and is available at accessory connector J0501-15.

3.0 UHF (450-520 MHz) Transmitter Power Amplifier (PA) 40W

The radio’s 40W PA is a three stage amplifier used to amplify the output from the VCOBIC to the radio transmit level. All three stages utilize LDMOS technology. The gain of the first stage (U5401) is adjustable, controlled by pin 4 of PCIC (U5501). It is followed by an LDMOS stage (Q5421) and LDMOS final stage (Q5441).


Devices U5401, Q5421 and Q5441 are surface mounted. A pressure pad between board and the radio’s cover provides good thermal contact between the devices and the chassis.

PCIC


Antenna

Harmonic Filter

PowerSense

PA-FinalStage

PADriver

From VCO

ControlledStage

Vcontrol

Bias 1

Bias 2

To Microprocessor

TemperatureSense

SPI BUS

ASFIC_CMP

PAPWRSET

To Microprocessor

& Bias 3

2-4 UHF (450-520 MHz) Transmitter Power Amplifier (PA) 40W


The first stage (U5401) is a 20dB gain integrated circuit containing two LDMOS FET amplifier stages. It amplifies the RF signal from the VCO (TXINJ). The output power of stage U5401 is controlled by a DC voltage applied to pin 1 from Q5473. The control voltage simultaneously varies the bias of two FET stages within U5401. This biasing point determines the overall gain of U5401 and therefore its output drive level to Q5421, which in turn controls the output power of the PA.

Switch S5440 is a pressure pad with a conductive strip which connects two conductive areas on the board when the radio's cover is properly screwed to the chassis. When the cover is removed, S5440 opens and cuts the supply voltage to Q5473 thus disabling control voltage to U5401. This prevents transmitter key up while the devices do not have proper thermal contact to the chassis.


The next stage is an LDMOS device (Q5421) providing a gain of 12dB. This device requires a positive gate bias and a quiescent current flow for proper operation. The bias is set during transmit mode by U5501-24 and fed to the gate of Q5421 via the resistive network R5480, R5408, R5415 and R5416.

3.3 Final Stage

The final stage is an LDMOS MRF1570 device Q5441. It provides a gain of 11dB. It integrates two MRF1535 die inside. These two die are being run in parallel. The output of each of the device (die) inside are combined to constitute the total output power. This device also requires a positive gate bias and a quiescent current flow for proper operation. The voltage of the line MOSBIAS_2 and MOSBIAS_3 are set in transmit mode by the ASFIC and fed to the gate of Q5441 via two resistive network R5631, R5634, R5485, R5486 and R5632, R5635, R5481, R5489. These bias voltages are tuned in the factory. If the transistor is replaced, the bias voltage must be tuned using the Global Tuner. Care must be taken not to damage the device by exceeding the maximum allowed bias voltage. The device’s drain current is drawn directly from the radio’s DC supply voltage input, PASUPVLTG, via L5421, L5437 and L5436, L5438.A matching network consisting of C5440-45, C5466-67, C5476-77, C5487, C5491, C5455-56, C5449-50, C5465, C5468 and striplines transforms the impedance to 50 ohms and feeds the directional coupler.


The directional coupler is a microstrip printed circuit, which couples a small amount of the forward power delivered by Q5441. The coupled signal is rectified by D5451. The DC voltage is proportional to the RF output power and feeds the RFIN port of the PCIC (U5501 pin 1). The PCIC controls the gain of stage U5401 as necessary to hold this voltage constant, thus ensuring the forward power out of the radio to be held to a constant value.

UHF (450-520 MHz) Transmitter Power Amplifier (PA) 40W 2-5

3.5 Antenna Switch

The antenna switch consists of two PIN diodes, D5471 and D5472. In the receive mode, both diodes are off. Signals applied at the antenna jack J5401 are routed, via the harmonic filter, through network L5472, C5474 and C5475, to the receiver input. In the transmit mode, K9V1 turns on Q5471 which enables current sink Q5472, set to 96 mA by R5512 and VR5471. This completes a DC path from PASUPVLTG, through L5437, D5471, L5472, D5472, L5473, R5496 and the current sink to ground. Both diodes are forward biased into conduction. The transmitter RF from the directional coupler is routed via D5471 to the harmonic filter and antenna jack. D5472 also conducts, shunting RF power and preventing it from reaching the receiver port (RXIN). L5472 is selected to appear as a broadband lambda/4 wave transmission line, making the short circuit presented by D5472 appear as an open circuit at the junction of D5472 and the receiver path.

3.6 Harmonic Filter

Components L5491-L5493 and L5472, C5448, C5494, C5496 and C5498 form a Butterworth low-pass filter to attenuate harmonic energy of the transmitter to specifications level. R5491 is used to drain electrostatic charge that might otherwise build up on the antenna. The harmonic filter also prevents high level RF signals above the receiver passband from reaching the receiver circuits, improving spurious response rejection.

3.7 Power Control

The transmitter uses the power control IC (PCIC, U5501) to control the power output of the radio. A portion of the forward RF power from the transmitter is sampled by the bi-directional coupler and rectified to provide a dc voltage to the RFIN port of the PCIC (pin 1) that is proportional to the sampled RF power.


The PCIC provides a DC output voltage at pin 4 (INT) which sets the drain current of the first (U5401). This adjusts the transmitter power output to the intended value. Variations in forward transmitter power cause the DC voltage at pin 1 to change, and the PCIC adjusts the control voltage above or below its nominal value to raise or lower output power.

Capacitors C5502-4, in conjunction with resistors and integrators within the PCIC, control the transmitter power rise (key-up) and power decay (de-key) characteristic to minimize splatter into adjacent channels.

U5502 is a temperature-sensing device, which monitors the circuit board temperature in the vicinity of the transmitter driver and final devices, and provides a DC voltage to the PCIC (TEMP, pin 30) proportional to temperature. If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be reduced so as to decrease the transmitter temperature.



The synthesizer subsystem shown in Figure 2-3, consists of the reference oscillator (Y5261 or Y5262), the Low Voltage Fractional-N synthesizer (LVFRAC-N, U5201), and the Voltage Controlled Oscillator (VCO).


The reference oscillator (Y5262) contains a temperature compensated crystal oscillator with a frequency of 16.8 MHz. An Analog-to-Digital (A/D) converter internal to U5201 (LVFRAC-N) and controlled by the µP via serial interface (SRL) sets the voltage at the warp output of U5201, pin 25 to set the frequency of the oscillator. The output of the oscillator (Y5262, pin 3) is applied to pin 23 (XTAL1) of U5201 via an RC series combination.

In applications where less frequency stability is required, the oscillator inside U5201 is used along with external crystal Y5261, varactor diode D5261, C5261, C5262, and R5262. In this case, Y5262, R5263, C5235 and C5251 are not used. When Y5262 is used, Y5261, D5261, C5261, C5262 and R5262 are not used, and C5263 is increased to 0.1 uF.


The LVFRAC-N synthesizer IC (U5201) consists of a pre-scaler, programmable loop divider, control divider logic, phase detector, charge pump, A/D converter for low frequency digital modulation, balanced attenuator used to balance the high frequency analog modulation and low frequency digital modulation, 13V positive voltage multiplier, serial interface for control, and a super filter for the regulated 5 volts.

A voltage of 5V applied to the super filter input (U5201, pin 30) supplies an output voltage of 4.5 Vdc (VSF) at pin 28. It supplies the VCO, VCO modulation bias circuit (via R5322), and synthesizer charge pump resistor network (R5251, R5252). The synthesizer supply voltage is provided by 5V regulator, U5211.

To generate a high voltage to supply the phase detector (charge pump) output stage at pin VCP (U5701-32), a voltage of 13 Vdc is generated by the positive voltage multiplier circuit (D5201, C5202, and C5203). This voltage multiplier is basically a diode capacitor network driven by two signals (1.05MHz) 180 degrees out of phase (U5201, pins 14 and 15).




The serial interface (SRL) is connected to the µP via data line DATA (U5201-7), clock line CLK (U5201-8), and chip enable line CSX (U5201-9).

DATA

CLK

CEX

MODIN

VCC, DC5V

XTAL1

XTAL2

WARP

PREIN

VCP

REFERENCEOSCILLATOR

VOLTAGEMULTIPLIER


CLOCK (U0101 PIN 1)

CSX (U0101 PIN 2)


+5V (U4211 PIN 1)

7

8

9

10

13, 30

23

24

25

32

47

VMULT2 VMULT1

BIAS1

SFOUT

AUX3

AUX4

IADAPTIOUT

GND

FREFOUT

LOCK 4

19

6, 22, 33, 44

4345

3

2

28

14 15

40

FILTERED 5V

STEERING

LOCK (U0101 PIN 56)

PRESCALER IN

FREF (U0221 PIN 34)

39BIAS2

41

48

5, 20, 34, 36+5V (U4211 PIN 1)

AUX1

VDD, DC5V MODOUT


AUX2 1 (NU)

BWSELECT

VCO Bias

TRB

To IFSection


LO RF INJECTION


LINE2-POLELOOP

FILTER



The voltage controlled oscillator (VCO), shown in Figure 2-4, consists of a VCO buffer IC (VCOBIC, U5301), TX and RX tank circuits, external RX buffer stages, and modulation circuits.

The VCOBIC together with Fractional-N synthesizer (U5201) generates the required frequencies in both transmit and receive modes. The TRB line (U5301, pin 19) determines which tank circuits and internal buffers are to be enabled. A high level on TRB enables TX tank and TX output (pin 10), and a low enables RX tank and RX output (pin 8). A sample of the signal from the enabled output is routed from U5301, pin 12 (PRESC_OUT), via a low pass filter of U5201, pin 32 (PREIN).

A steering line voltage (VCTRL) between 3.0V and 10.0V at varactor diode CR5311 tunes the full TX frequency range (TXINJ) from 450 MHz to 520 MHz, and at varactor diodes CR5301, CR5302, and CR5303 tunes the full RX frequency range (RXINJ) from 405 MHz to 475 MHz. The tank circuits uses the Hartley configuration for wider bandwidth. For the RX tank circuit, external transistor Q5301 is used in conjunction with the internal transistor for better side-band noise.


Presc

RX

TX


Filter

Attenuator

Pin8

Pin14

Pin10

(U5201 Pin28)

VCC Buffers

TX RF Injection

U5201 Pin 32

AUX3 (U5201 Pin2)

Prescaler Out

Pin 12Pin 19Pin 20


U5301VCOBIC

RxActive Bias

TxActive Bias

Pin2

Rx-I adjust

Pin1

Tx-I adjust

Pins 9,11,17Pin18

VsensCircuit

Pin15

Pin16

RX VCO Circuit

TX VCO Circuit

RX Tank

TX Tank

Pin7

Vcc-Superfilter

Collector/RF in

Pin4

Pin5

Pin6

RX

TX

(U5201 Pin28)

Rx-SW

Tx-SW

Vcc-Logic

(U5201 Pin28)


Pin13

Pin3

TRB IN

LO RF INJECTION

Q4301

Q4332


The external RX buffers (Q5332) are enabled by a high at U5201, pin 3 (AUX4) via transistor switch Q5333. In TX mode, the modulation signal (VCOMOD) from the LVFRAC-N synthesizer IC (U5201, pin 41) is applied to the modulation circuits CR5321, R5321, R5322, and C5324. These modulate the TX VCO frequency via coupling capacitor C5321. Varactor CR5321 is biased for linearity from the VSF.


The synthesizer consists of a low voltage FRAC-N (LVFRACN) IC, reference oscillator (crystal oscillator with temperature compensation), charge pump circuits, loop filter circuits, and dc supply. The output signal (PRESC_OUT) of the VCOBIC (U5301, pin12) is fed to of U5201, pin 32 (PREIN) via a low pass filter (C5229,L5225,and C5226) which attenuates harmonics and provides correct level to close the synthesizer loop.

The pre-scaler in the synthesizer (U5201) is a dual modulus pre-scaler with selectable divider ratios. The divider ratio of the pre-scaler is controlled by the loop divider, which in turn receives its inputs via the SRL. The output of the pre-scaler is applied to the loop divider. The output of the loop divider is connected to the phase detector, which compares the loop divider´s output signal with the reference signal.The reference signal is generated by dividing down the signal of the reference oscillator (Y5261 or Y5262).

The output signal of the phase detector is a pulsed dc signal routed to the charge pump. The charge pump outputs a current at U5201, pin 43 (IOUT). The loop filter (consisting of R5221-R5223, C5221-C5225, and L5221) transforms this current into a voltage that is applied to varactor diodes CR5311 for transmit, CR5301, CR5302 and CR5303 for receive and alters the output frequency of the VCO.The current can be set to a value fixed in the LVFRAC-N IC or to a value determined by the currents flowing into BIAS 1 (U5201-40) or BIAS 2 (U5201-39). The currents are set by the value of R5251 or R5252 respectively. The selection of the three different bias sources is done by software programming.

To reduce synthesizer lock time, when new frequency data has been loaded into the synthesizer, the magnitude of the loop current is increased by enabling the IADAPT (U5201-45) for a certain software programmable time (Adapt Mode). The adapt mode timer is started by a low to high transistion of the CSX line. When the synthesizer is within the lock range, the current is determined only by the resistors connected to BIAS 1, BIAS 2, or the internal current source. A settled synthesizer loop is indicated by a high level of signal LOCK (U5201-4) which is routed to one of the µP´s ADCs input U101-56. From the voltage the µP determines whether LOCK is active.

To modulate the PLL, the two-spot modulation method is utilized via pin 10 (MODIN) on U5201. The audio signal is applied to both the A/D converter (low frequency path) and the balanced attenuator (high frequency path). The A/D converter converts the low frequency analog modulating signal into a digital code which is applied to the loop divider, thereby causing the carrier to deviate. The balance attenuator is used to adjust the VCO’s deviation sensitivity to high frequency modulating signals. The output of the balance attenuator is present at the MODOUT port (U5201-41) and connected to the VCO modulation diode CR5321 via R5321 and C5325.

3-1

Section 3




No Recovered Audio

START




Yes

No


Audio heard ?BYes

No


LO present ?BYes


Biasing OK ?

No

No

A

Yes


Replace Q3102

Go to B

Yes

No




Voltages

OK?



IF Signal at C3101?

No

RF Signal at T5051?

RFSignal at C5015?

No

No

RFSignal at C5025?

No or






Istuning voltage

OK?

No

Yes



Yes

Check T5051, T5052, D5051, R5052, L5008.

Yes

1st LO level OK?

Locked?

Yes

Check FGU

Yes



No


collector?


U3101 voltages.

Yes

Check for 5VDC

Is 9V3 present?


U5211 and U0641.

No

No

No

Check U5501.


No

Yes

Yes

Yes

A

A

B

weak RF

RFSignal at C5009?



Q5441 gate (63kohm)and drain resistances (15kohm)

Check

No


Is voltagedrop across R5497

between 1V and 0.7Vwhen Tx power

= 44W?

No

NoQ5421 gate (12kohm)and drain resistances (15kohm)

Check

No

PCIC_MOSBIAS_1 Check

No

No

ChangeQ5473

START

No power

Is Vctrl

there? Is Q5473 OK?

Check voltagen pin 4, U5501

Check voltageon pin 5, U5501


TroubleshootASFIC

ChangePCIC

Check R5409 and


Check

MOSBIAS_2/MOSBIAS_3

CheckASFIC

Are D5471 &D5472 OK?

ChangeD5471 &D5472

NoNo No

Yes

Yes

YesYes

Yes

Yes Yes

Yes

No

No CheckPCIC

Yes

Change Q5421

Change Q5441

Change U5401

Yes Do visual checkon all components

No

Troubleshoot VCO



Yes



5V at pin 6 of

D5201

Isinformation


?


?

IsU5301 Pin 19


?

Start

Visual check of the

BoardOK?

CorrectProblem


+5Vat U5201

Pins13 & 30

?

Is16.8MHz


?


associated parts

Aresignals

at Pins 14 &15 of U5201

?


IsU5201


in Rx?

Replace U5201

RemoveShorts

Isthere a short


U5201?

Replace orresolder

necessarycomponents

IsRF level at

U5201 Pin 32 -12 < x <-25

dBm?

AreR5221,R5222,R5223,C5221,

C5222,& C5223 OK?

Replace U5201


AreWaveforms


?

DoPins 7,8 & 9


changed?


U0101 and U5201Pins 7,8 & 9

Replace U5201


Chart

NO

YES

NO

YES

NO

YES

NO

NO

NO

YES

YES

NO

YES

YES

NO

YES

YESYESNO

NO

NO

NO

YES

NO

YES

YES

Check D5201, C5202, C5203, &

C5206

5V at U5201

pins 5, 20, 34 & 36

Check 5V Regulator

U5211


U5201 Pin 23?

Replace U5201

YES

NO

NO

YES

NO

YES











OK?


NO

YES

Replace Q5301

at base of Q5332

NO

NO

NO

NO

YES

YES

YES

YES




YES

YES

YES

YES

NO

NO

NO

NO

NO


4.5VDCat CR5321


Replace C5322

Replace C5325

NO

NO

YES

YES

TX VCORX VCO

CorrectProblem


OK?


and U5301 Pin 19


replace U5301


replace Q5332


OK, Replace U5301



replace U5301

Replace Q5311

YES YES


4.5V DC

OK ?

OK? OK?

C5325

at U5301 Pin 14 & 18 4.5V DC

OK ?at U5301 Pin 14 &18

NO

Pin 16


4-1

Section 4





Table 4-1 UHF B2 40W Diagrams and Parts Lists


Page 4-3Page 4-4

SCHEMATICSPower Amplifier 40WFRACNVoltage Controlled OscillatorReceiver Front EndIF



UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-3

2.0

UH

F B

and

2 2

5-40

W P

CB

/ S

chem

atic

s / P

arts

Lis

t

ZMY0131036-O

321716

1

U01

21

1 765126

U01

01

161 8

9

U02

51

C0108

C0211

C02

12

C02

51

C02

52

R0103

R0211

R02

12R

0251

R0252

R0253

R02

57

87

114

U02

11

C0256R0256

R0268

181

J045

1

Q01

10

C02

53

C0261

C02

62

C0421

R01

02R

0110

R01

15R

0227

R02

61

R0262

R0269

C0441

C0442

C0443

C0445C0446

C0447

C0448

R0442

R02

22

C01

31

C01

32

R01

31

R01

32

234

Y01

31

C0101

C0102

R01

05R

0106

R01

14R

0170

R0101

C0104C0106

C0107R0104

R0108

R01

16

C02

23C0224

C02

26C

0227

C0231

C02

32

C02

33

C0234C0235

C02

36

C0237

C0495

R02

25

R0228

R02

26

C0228

137 25

13

U02

21

3

2

1

U06

51

C02

41 C02

42

C02

43 C02

44C

0245

C02

46R

0241

R02

42

R0254R0255

C0221

C0222

C02

25R

0220

R02

21 R0223

R0224

R02

29

C04

96

C06

81D02

01 Q06

81

R06

81

R0682

9

U02

71

C0651C0652

D0651

R06

51 R0652

1

6

5

U06

41

C0482C0483

C0486C0487

C0488

C0493

C0494

C06

54

C0655

L048

1

L048

2C0449C0470

C0471

C0472

C0473C0474

C0476

C0477

C0478

C0490

C0502C0503C0504C0505C0506C0508

C0509

C0510C0512

C05

42

Q01

77Q

0181

Q01

85

R0181R0182

R0185R0186

R0510

R05

35R

0538

R05

39

VR0501

VR

0503

VR

0505

VR

0510

C0501

C0511

C0513C0514

C0515C0516

C0517C0518

201110

J050

1

R05

08R

0509

C04

84

C06

01 C06

03

C0612

R0533 R06

11R0612

1

6

5

U06

11

J060

1

C5417

C54

19

C5420

C5425C5426

C5427

C54

28

C54

29

C5430

C54

31

C5432C5433

C5434

C5435

C5446

C5447

C5453

C54

54

C5457

C54

58

C54

61

C54

62 C5481

C54

85C

5489

C54

90C

5495

C54

97C

5602

L5474

M34

21

R54

08

R5415R5416

R54

17

R54

18

R54

80321 4

5678

Q54

41

C54

78

C54

93

C54

01

C5403

C54

04

C5407

C54

10

C54

18

C54

88

C5505C5506

L540

1

L5403

Q5471

Q54

72R

5401

R5402

R54

03

R5405

R5504

R55

11

R5512

TP

5530

116

89U

5401

VR5471

32

J540

1

C54

40

C54

41

C54

42

C54

43

C54

44

C54

45

C54

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56

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65

C54

66

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67

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76

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FC

5232

LOC

K_U

HF

_FN

_1

C

5243

100p

F

R52

2251

0

C52

534.

7uF

o

2.2u

FC

5213

C52

09

0.1u

F

U45

06

.01u

FC

5231

CLK

_UH

F_F

N_1

L522

112

uH

47K

R52

28

1000

pFC

5252

150

R52

21

R52

6115

0K

100

R52

63

VD

DA

CLK

16.8

MH

z

XT

AL

Y52

61

1uF

C52

23

VC

NT

L

1

VS

F_U

HF

_FN

_1

Y52

62T

TS

05V

16.8

MH

z

GN

D2

OU

T 3

VC

C4

M

OD

IN_U

HF

_FN

_1

2.2u

F

C52

14

0.1u

FC

5254

D 5

261

5V_U

HF

_FN

_1

150

R52

01

C52

88

0.1u

F

DA

TA

100p

F

C52

27

VD

DA

_UH

F_F

N_1

C52

4610

0pF

C52

05.0

1uF

1.5p

F

C52

63

68

R52

23

C52

35.0

1uF

C52

5510

0pF

C52

22

0.1u

F

1.2K

R52

62

C52

4510

0pF

C52

44

47nH

L522

5

100p

F

T

RB

_UH

F_F

N_1

U

4507

16_8

MH

z_U

HF

_FN

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SX

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F_F

N_1

C52

04

0

R52

11

100p

F

B

WS

ELE

CT

_UH

F_F

N_1

C52

07

100p

FC

5228

0.1u

F

5V

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F_F

N_2

VS

F

C52

110.

1uF

2.4p

F

C52

26

C52

0610

uF

2.2u

FC

5210

220p

FC

5262

47

R52

03

LOC

K

C52

08

0.1u

F

1uF

C52

24

510p

F

C52

25

R52

04

R52

06

47

33K

C52

16.0

1uF

LP29

51U

5211

VC

OB

IAS

_2

C52

12

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uF

100p

FC

5287

100p

F

C52

01

2p

FC

5229

C52

30

2.2u

F

2.2u

FC

5233

0.1u

F

C52

89

39K

R52

51

VC

TR

L

T

P52

01

C52

42

PR

ES

C

CS

X

100p

F

L523

1

VC

OM

OD

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F_F

N_1

IN_5

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2.2u

H

C52

4110

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5A

24

A3

K1

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22

K3

3

DA

TA

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F_F

N_1

6A

1

D52

01

C52

21.0

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F

C52

03

R52

52

30K

VC

TR

L_U

HF

_FN

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FC

5234

L520

139

0nH

62pF

C52

61

5V

5V

2.2u

FC

5215 V

DD

A

VD

DA

U52

014.

57 V

DC

-19

to -

17 d

Bm

(R

x)-1

7 to

-12

dB

m (

Tx)

4.98

VD

C

0 V

DC

(R

x)

3.09

VD

c (R

x)2.

65 V

DC

(T

x)

4.97

VD

C (

25K

Hz

Cha

n. S

paci

ng)

4.97

VD

C (

Tx)

2.48

VD

C

1.76

VD

C (

Tx)

1.69

VD

C (

Rx)

0 V

Dc

(12.

5KH

z C

han.

Spa

cing

)

5 V

DC

(Lo

cked

)0

VD

C (

Unl

ocke

d)

2.5

to 1

0 V

dc

6.6

VD

C10

.87

VD

C

12.7

VD

C

4.97

VD

C

3.03

VD

C

3.76

VD

C

2.51

VD

C

4.95

VD

C0

VD

C

2.48

VD

C

1.25

VD

C

1.97

V

DC

5V

VC

OM

OD

BW

SE

LEC

T

23X

TA

L1X

TA

L224

21V

BP

AS

S

47VCP

VM

ULT

11514

VM

ULT

2

12V

MU

LT3

11V

MU

LT4

VRO 13

25W

AR

P

35P

VR

EF

18R

EF

SE

L

27S

FB

AS

E26

SF

CA

P

30S

FIN

28S

FO

UT

37T

ES

T1

38T

ES

T2

17N

C1

29N

C2

31N

C3

44 PD_GND

PD_VDD 5PR

EIN

32

33 PRE_GND34PRE_VDD

36DVDD

19F

RE

FO

UT

45IA

DA

PT

16IN

DM

ULT

43IO

UT

LOC

K4

10M

OD

IN

41M

OD

OU

T

20AVDD

40B

IAS

1

39B

IAS

2

42C

CO

MP

9C

EX

8C

LK

7D

AT

A

DGND6

46A

DA

PT

SW

22 AGND

48A

UX

1

1A

UX

2

2A

UX

3

3A

UX

4

INP

UT

1O

UT

PU

T

2S

EN

SE

3S

HU

TD

OW

N6

5V_T

AP

5E

RR

OR

7F

EE

DB

AC

K

4

GN

D

8

ZW

G01

3036

4-0

HF

Ban

d 2

(45

0-52

0 M

Hz)

FR

AC

N

UH

F B

and

2 25

-40W

PC

B /

Sch

emat

ics

/ Par

ts L

ist

4-7

ZM

Y01

3067

4-O

R53

015.

6KR

XS

W4.2

Vdc

(R

x)0

Vdc

(T

x)

R53

0210

K0.

22uF

C53

71C

5372

100p

FN

U

C53

05N

UC

5306

2pF

L530

439

0nH

4.3p

FC

5303

C53

045.

6pF

C53

024.

3pF

CR

5302

CR

5303

220n

HL5

302 C

R53

01L5

301

68nH

68nH

L531

1

C53

1710

0pF

100p

FC

5301

NU

VC

TR

L_U

HF

_VC

OR

5315

0

2.5

to 1

0 V

dc

100p

FC

5311

CR

5311

C53

160.

1uF

15pF

C53

12

VC

OM

ODV

CO

MO

D_U

HF

_VC

O4.

7uF

C53

25

VC

TR

L

C53

2310

00pF

56K

R53

21

C53

2210

0pF

NU

NU

C53

211p

F

R53

226.

8K

CR

5321

3pF

C53

24R

5323

10K

VS

F

NU

4.5

Vdc

P22

P3

3

RE

SO

NA

TO

RL5

303

P1

1

R53

0330

R53

0415

0

100p

FC

5307

R53

11

TX

SW

0 V

dc (

Rx)

4.5

Vdc

(T

x)

7.5K

0.22

uFC

5318

L531

339

0nH

R53

127.

5K

3pF

C53

14

100p

FC

5315

R53

1422

0

Q53

11

0 V

dc (

Rx)

1.9

Vdc

(T

x)

P1

1

P22

P3

3

RE

SO

NA

TO

RL5

312

C53

13N

UR

5313

30

C53

8210

0pF

0.1u

FC

5381

TX

SW

0 V

dc (

Rx)

4.5

Vdc

(T

x)

NU

TR

B_U

HF

_VC

OR

5381

470

TR

B

0 V

dc (

Rx)

4.5

Vdc

(T

x)

TX

_OU

T

TX

_SW

ITC

H

VCC_BUFFERS14

VCC_LOGIC18

RX

_IA

DJ

2R

X_O

UT

RX

_SW

ITC

H

SU

PE

R_F

LTR

3

TR

B_I

N19

TX

_BA

SE

16

TX

_EM

ITT

ER

15

TX

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DJ

1

CO

LL_R

FIN

4

FLI

P_I

N20

GND_BUFFERS11GND_FLAG9

17GND_LOGIC

PR

ES

C_O

UT

RX

_BA

SE

5

RX

_EM

ITT

ER

6U

5301

50U

54

10 138 7124.

5 V

dc (

Rx)

2.58

Vdc

(T

x)

100p

FC

5383

39nH

C53

65L536

2

3.3p

FR

XS

W

NU

4.2

Vdc

(R

x)0

Vdc

(T

x)

10R53

35

PR

ES

C

PR

ES

C_U

HF

_VC

ON

U

NU

R53

470

R53

3310

KR

5334

0

C53

3451

pF

NU

NU

0.1u

FC

5308

L530

539

0nH

C53

0910

0pF

R53

0510

VS

FV

SF

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F_V

C0

VS

F

4.5

Vdc

Q53

01

2.3

Vdc

(R

x)0

Vdc

(T

x)

100p

FC

5351

0.1u

FC

5352

2.2u

FC

5354

2.2u

FC

5355

C53

6110

0pF

0.1u

FC

5353

33nH

L533

1

R53

6118

0

390n

HL5

361

0.22

uFC

5362

270

R53

60C

5364

5.6p

FNU

1KR

5363

VS

F

C53

74

C53

63

NUN

U

NU

C53

73

L537

168

nH5.

6pF

C53

314

dBn

(Tx)

R53

6210

C53

320.

1uF

C53

33

22K

R53

32L5

332

15nH

R53

361K

NU

NU

NU

NU

51pF

NU

TX

INJ_

UH

F_V

CO

Q53

31R

5331

22

TX

INJ

NU

R53

370 N

U

5V_U

HF

_VC

O

VC

OB

IAS

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HF

_VC

O

C53

7510

KR

5346

VC

OB

IAS

_2

5VN

U

Q53

33

0R

5341

4.7K

47K

47K 10

K4.

5 V

dc (

Rx)

0 V

dc (

Tx)

51pF

C53

37

R53

422.

2KL5

333

390n

H

C53

36.0

22uF

R53

4410

22R

5339

R53

431K

220

R53

38

100p

FC

5335

Q53

32

NU

NU

51pF

C53

38

220

R53

40

NU

R53

45C

5339

RX

INJ

RX

INJ_

UH

F_V

CO

>14

dB

n (R

x)

NU

NU

SH

IELD

SH

5302

1

SH

IELD

SH

5301

1

GN

D

UH

F B

and

2 (

450-

520

MH

z) V

olt

age

Co

ntr

olle

d O

scill

ato

r

4-8

UH

F B

and

2 25

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PC

B /

Sch

emat

ics

/ Par

ts L

ist

C50

55

L505

3

C50

02

15nH

33pF

16pF

8.2p

FC

5031

C50

20

Q50

02

GN

D

15nH

L505

4

C50

2410

00pF

D50

02

C50

261p

F

GN

D_U

HF

_FE

1000

pFC

5008

R50

15

100K

R50

01

R50

17

330K

R50

60

3300

pF

RX

INJ

C50

11

C50

2124

pF

L500

4

IN

NE

G

TB

D

C50

25

D50

04

82pF

C50

52

150

R50

19

R50

10

8.2p

FC

5032

33

R50

08

15nH

L500

6

4

C50

30 1pF

XF

MR

T50

51

1 2 3

5

R50

220

270

R50

06

1.5p

FC

5017

RX

IN_U

HF

_FE

9V3

C50

16

D50

01

C50

66

TP

5003

TB

DL5

005

IN

NE

G

TB

DL5

001

IN

NE

G

150n

HL5

051

L500

8

470n

H

10K

9V3

2

R50

05

T50

52X

FM

R

4 6

3 1

100K

27pF

R50

12C

5007

68

R50

07

270

TB

DL5

002

IN

NE

G

R50

11

Q50

01

FE

CT

RL_

1_U

HF

_FE

1pF

C50

29

R50

20 10

C50

60

R50

16

C50

23

C50

5416

pF

C50

098.

2pF

IF

D50

03

0.1u

FC

5034

FE

CT

RL_

1

C50

0416

pFC

5006

Q50

03

L500

9

10R

5021

R50

51

15nH

51

20pF

C50

03

330

R50

02

C50

1333

00pF

0R50

52

270n

H

R50

54

RX

IN

L500

3

330p

FC

5012

C50

271p

F

R50

18

R50

53

R50

034.

7K

R50

13

150

R50

09

C50

28

100p

F

C50

15

R50

55

9V3_

UH

F_F

E

IF_U

HF

_FE

C50

011.

5pF 18

pFC

5005

100p

FC

5014

6.8p

FC

5053

R50

042.

7K

C50

33

TP

5001

0.1u

F

RX

INJ_

UH

F_F

E

16pF

C50

22

TP

5002

C50

1833

pF

D50

51

IO1

1IO

22

IO3

3 IO4

4

C50

1924

pF

330p

FC

5010

D50

05

GR

OU

ND

PO

S

15pF

PO

S

PO

SP

OS

3.4

VD

C @

450

MH

z4.

7 V

DC

@ 4

50M

Hz

6.5

VD

C @

450

MH

z

0.7

VD

C

4.6

VD

C

UH

F B

and

2 (

450-

520

MH

z) R

ecei

ver

Fro

nt

En

d

UH

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and

2 25

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PC

B /

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ics

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ts L

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4-9

9186

176B

01

9180

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04

9180

469V

03

9180

469V

0691

8046

8V06

R31

442.

4K

BW

SE

LEC

T_V

HF

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9V3_

VH

F_I

F_2

C31

139.

1pF

NU

R31

0410

0N

U

10

0

620n

HN

U

R31

05

R31

30L3

100

14

VD

D

7

VS

S

51

U31

11-1

MC

74H

C40

66

13

CN

TL1

2

C31

16

L311

2

0.

1uF

620n

H

9V3_

VH

F_I

F_1

10

uF

C31

33

0.1

uF

C31

32

.01u

F

C31

51

OU

T2

C31

37.0

39

uF

CF

WC

45

5D

FL3

112

GN

D1

34

GN

D2

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620n

H

C31

21

L310

1

0.1u

F

R31

0112

K

12

K

R31

47

15pF

DIS

CA

UD

IO

C31

02

C31

52.0

1uF

0.1u

F C

3139

7

VS

S

0.1

uF

C31

41

U31

15-1

MC

74

HC

40

66

MC

74H

C40

66

13

CN

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2

14

VD

D

DIS

CA

UD

IO_V

HF

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62

0n

H

620

L311

1

R31

08

27

pF

C31

10

0.

1uF

C31

47C31

55

9V3

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F

NU

Q31

55

FL3

115

3GN

D1

GN

D2 4

1IN

2O

UT

BW

SE

LEC

T

GND3

45

GND4

3IN

6O

UT

C

FW

C45

5F

12

R16

FL3

102

1GND1GND2

2

GND1

12

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GND3GND4

5

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T6

12R

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1

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C31

4 2

0.1u

F

MC

74H

C40

66

CN

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6

89

VD

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GN

D

3

IN1

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SI

U31

11-3

FL3

114

CF

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D

4700

pFC

3146

27K

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34

GN

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T2

R31

06

OU

T3

IN1

FL3

111

CF

WC

455G

Y31

011

2R

17

44.3

95M

Hz

GN

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GN

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4C

3131

1pF

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0.1u

FC

3145

5V_V

HF

_IF

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IN_V

HF

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330

R31

16

10K

R

3134

0.1

uF

C31

44

18pF

C31

14

10K

R31

55

R31

51

VD

D

7VS

S

NU

1.2K

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11-4

MC

74H

C40

66

12CN

TL14

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TL

5

43

VD

D

14

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S 7

U31

15-2

MC

74H

C40

66

0.1

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C31

04

C31

35

33pF

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TL

11

14 VD

D

7VS

S

7

U31

15-4

MC

74H

C40

66

MC

74H

C40

66

CN

TL

5

43

VD

D

14

VS

S

3.3

K

U31

11-2

R31

45

0.1

uF

C31

40

39

0

R31

15

Q31

52

32

2p

FY

3102

455K

Hz

45B

02

C31

15

82pF

C31

12C

3123

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9u

F

R31

12 10

0102

727B

45

0R

3148

0.1u

F C31

11

Q31

51

27

K

R31

17

Q31

02

8.2K

R31

33

Q31

01

C31

363

0p

F

20pF

R31

02C

3101

33pF

10

C31

03

C31

340

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F

R

SS

I_V

HF

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6.

8K

R31

18

R31

11

12K

C31

22

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uF6.

8K

R31

07

NU

100

R31

14

R31

54

5V

10K

10

K R

3153

D31

01

120p

F

C31

43

R31

52

10K

1.2

K

CN

TL

6

VD

D

14 VS

S 7

R31

35

U31

15-3

MC

74H

C40

66

680

R31

46R

3160

0

R31

321

5K

FL3

113

CS

455G

2N

U

GN

D

3

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T2

9V3

5V

5V

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Technical Information UpdatesAs we continue to make engineering enhancements to our products, the information in our Service Manuals need to be updated accordingly. If you wish to be informed of these updates, kindly fill in and fax us your details.

Manual No.: 6804112J18

Kindly complete the Service Manual Feedback Form on the next page to help us ensure that you receive the most accurate and complete information.

Fax to: 6-04-6124944

The Technical Publications Coordinator,Media and Communications,R&D Department,Motorola Penang.

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Manual No.: 6804112J18

Fax to: 6-04-6124944

The Technical Publications Coordinator,Media and Communications,R&D Department,Motorola Penang.

Com

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GM328/GM338/GM398 Mobile Radios - of Manuals

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