SAMSUNG Anycall - SGH-X640 - Altehandys.de

SGH-X640

1. Specification

2. Circuit Description

3. Exploded Views and Parts List

4. Electrical Parts List

5. Block Diagrams

6. PCB Diagrams

7. Flow Chart of Troubleshooting

SAMSUNG Anycall

CONTENTSSAMSUNG Anycall

Samsung Electronics Co.,Ltd. March. 2005

Printed in Korea.

Code No.: GH68-06819A

BASIC.

ⓒThis Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law.

SAMSUNG Proprietary-Contents may change without notice

1. Specification

This Document can not be used without Samsung's authorization

1-1

GSM900Phase 1

EGSM 900Phase 2

DCS1800Phase 1

PC1900Phase 1

Freq. Band[MHz]Upl ink/Downlink

890~915935~960

880~915925~960

1710~17851805~1880

1850~19101930~1990

ARFCN range 1~1240~124 &975~1023

512~885 512~810

Tx/Rx spac ing 45MHz 45MHz 95MHz 80MHz

Mod. Bi t rate/Bi t Per iod

270.833kbps3.692us

270.833kbps3.692us

270.833kbps3.692us

270.833kbps3.692us

Time SlotPer iod/Frame Period

576.9us4.615ms

576.9us4.615ms

576.9us4.615ms

576.9us4.615ms

Modula t ion 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK

MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm

Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl

Sensi t iv i ty -102dBm -102dBm -100dBm -100dBm

TDMA Mux 8 8 8 8

Cel l Radius 35Km 35Km 2Km 2Km

1. GSM General Specification

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Specification

1-2

TX Power

control levelPCS1900

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control levelGSM900

5 33±2 dBm

6 31±2 dBm

7 29±2 dBm

8 27±2 dBm

9 25±2 dBm

10 23±2 dBm

11 21±2 dBm

12 19±2 dBm

13 17±2 dBm

14 15±2 dBm

15 13±2 dBm

16 11±3 dBm

17 9±3dBm

18 7±3 dBm

19 5±3 dBm

TX Power

control levelDCS1800

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

2. GSM TX power class


2. Circuit Description

2-1


1. SGH-X640 RF Circuit Description

1) RX PART

1. ASM(U103) → Switching Tx, Rx path for GSM900, DCS1800, PCS1900 by logic controlling.

2. ASM Control Logic (U103) → Truth Table

VC1 VC2 VC3

GSM Tx Mode H L L

DCS Tx Mode L H L

PCS Tx Mode H L L

GSM Rx Mode L L L

DCS Rx Mode L L L

PCS Rx Mode L L H

3. FILTER

To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band.

- GSM FILTER (F100) → For filtering the frequency band between 925 and 960 MHz

- DCS FILTER (F102) → For filtering the frequency band between 1805 and 1880 MHz.

- PCS FILTER (F101) → For filtering the frequency band between 1930 and 1990 MHz.

4. VC-TCXO (OSC100)

This module generates the 26MHz reference clock to drive the logic and RF. After division by two a reference clock of

13MHz is supplied to the other parts of the system through the pin CLKOUT. After additional process, the reference

clock applies to the U100 Rx IQ demodulator and Tx IQ modulator. And then, the oscillator is controlled by serial data

to select channel and use fast lock mode for GPRS high class operation.

5. Transceiver (U100)

The receiver front-end which amplifies the GSM, DCS aerial signal, converts the chosen channel down to a low IF signal

of 100 kHz. The first stages are symmetrical low noise amplifiers (LNAs). The LNAs are followed by an IQ down mixer.

It consists of two mixers in parallel but driven by quadrature out of phase LO signals. The In phase (I) and Quadrature

phase (Q) IF signals are low pass filtered to provide protection from high frequency offset interferes. The low IF I and Q

signals are then fed into the channel filter. The front-end low IF I and Q outputs enter the integrated bandpass channel

filter with provision for five 8 dB gain steps in front of the filter.

2) TX PART

I and Q baseband signals are applied to the IQ modulator that shifts the modulation spectrum up to the transmit IF. It is

designed for low harmonic distortion, low carrier leakage and high image rejection to keep the phase error as small as

possible.


Circuit Description

2-2


The modulator is loaded at its IF output by an integrated low pass filter that suppress unwanted spurs prior to get into

the phase detector. The clock drive is generated by division of the RFLO signal provided for the transmit offset mixer.

Baseband IQ signal fed into offset PLL, this function is included inside of U100 chip. OSC101 chip generates modulator

signal which power level is about 6.5dBm and fed into Power Amplifier(U102). The PA output power and power ramping

are well controlled by Auto Power Control circuit. We use offset PLL below table.

Modulation Spectrum

200kHz offset30 kHz bandwidth

GSM -35dBc

DCS -35dBc

400kHz offset30 kHz bandwidth

GSM -66dBc

DCS -65dBc

600kHz ~ 1.8MHz offset30 kHz bandwidth

GSM -75dBc

DCS -68dBc

2. Baseband Circuit description of SGH-X640

1. PCF50601

1.1. Power Management

Ten low-dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal system

performance and long battery life. A programmable boost converter provides support for 1.8V, 3.0V, and 5.0V SIMs,

while a self-resetting, electronically fused switch supplies power to external accessories. Ancillary support functions, such

as RTC module and High Voltage Charge pump, Clock generator, aid in reducing both board area and system complexity.

I2C BUS serial interface provides access to control and configuration registers. This interface gives a microprocessor full

control of the PCF50601 and enables system designers to maximize both standby and talk times.

Supervisory functions. including a reset generator, an input voltage monitor, and a temperature sensor, support reliable

system design. These functions work together to ensure proper system behavior during start-up or in the event of a fault

condition(low microprocessor voltage, insufficient battery energy, or excessive die temperature).

1.2. Backlight Brightness Modulator

The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) and FET

to modulate the intensity of a series of LED’s or to control a DC/DC converter that drives LCD backlight.

But, this phone (SGH-X640) is use UFB LCD. UFB LCD controls backlight brightness by contrast setting.

So "BL_VDD" voltage is always high value when phone is in active mode. When phone is in dimming mode "BL_VDD"

goes to about 10% duty PWM.

1.3. Clock Generator

The Clock Generator (CG) generates all clocks for internal and external usage. The 32768 Hz crystal

oscillator provides an accurate low clock frequency for the PCF50601 and other circuitry.

2. LCD ConnectorLCD is consisted of main LCD(color 65K UFB LCD).

Chip select signals LCD_MAIN_CS can enable LCD. BACKLIGHT signal enables white LED of main LCD.

"RESET_2V8" signal initiates the reset process of the LCD.


Circuit Description

2-3


16-bit data lines(LD(0)~LD(15)) transfers data and commands to LCD through bypass capacitor. Data and commands use

"RS" signal. If this signal is high, inputs to LCD are commands. If it is low, inputs to LCD are data.

The signal which informs the state of LCD is whether input or output, is required. But in this system, there is no input

state from LCD. So only "L_WR" signal is used to indicate write data or command to LCD. Power signals for LCD are

"VBAT and "VDD2".

"M_SCL", "M_SCA", "PCLK", "FVALID", "LVALID" and "STANDBY" signals are all related to camera working.

"SVC_LED" is signal for service led when the signal is low led is on and vice versa. "SPK_P" and "SPK_N" are used

for audio speaker containing voice or melody. And "VDD_VIB" from PCF50601 enables the motor.

3. KeyThis is consisted of key interface pins among OM6359, KBIO(0:7). These signals compose the matrix. Result of matrix

informs the key status to key interface in the OM6359. Power on/off key is separated from the matrix. So power on/off

signal is connected with PCF50601 to enable PCF50601. Fifteen key LEDs are use the "VBAT" as supply voltage.

"VDD_KEY" signal enables LEDs. "FLIP" informs the status of folder (open or closed) to the OM6359. This uses the

hall effect IC, SH248CSP. A magnet under main LCD enables SH248CSP.

4. EMI ESD FilterThis system uses the EMI ESD filter, EMIF09 to protect noise from IF CONNECTOR part.

5. IF connetorIt is 18-pin connector. They are designed to use VBAT, V_EXT_CHARGE, TXD0, RXD0, RTS0, CTS0, JIG_REC,

CHARGER_OK, RXD1, TXD1, AUX_MIC, AUX_SPK and GND. They connected to power supply IC, microprocessor

and signal processor IC.

6. Battery Charge ManagementA complete constant-current/constant-voltage linear charger is used for single cell lithium-ion batteries.

If TA connected to phone, "V_EXT_CHARGE" enable charger IC and supply current to battery.

When fault condition caused, "CHG_ON" signal level change low to high and charger IC stop charging

process.

7. AudioEARP_P and EARP_N from OM6359 are connected to the main speaker. AUXSP is connected to the Hands free kit.

MIC_P and MIC_N are connected to the main MIC. And AUX_MIC_P and AUX_MIC_N are connected to the Hands

free kit.

YMU762C is a LSI for portable telephone that is capable of playing high quality music by utilizing FM synthesizer and

ADPCM decoder that are included in this device.

As a synthesis, YMU762C is equipped 32 voices with different tones. Since the device is capable of simultaneously

generating up to synchronous with the play of the FM synthesizer, various sampled voices can be used as sound effects.

Since the play data of YMU762C are interpreted at anytime through FIFO, the length of the data(playing period) is not

limited, so the device can flexibly support application such as incoming call melody music distribution service. The

hardware sequencer built in this device allows playing of the complex music without giving excessive load to the CPU of

the portable telephones.


Circuit Description

2-4


Moreover, the registers of the FM synthesizer can be operated directly for real time sound generation, allowing, for

example, utilization of various sound effects when using the game software installed in the portable telephone.

YMU762C includes a speaker amplifier with high ripple removal rate whose maximum output is 550mW (SPVDD=3.6V).

The device is also equipped with conventional function including a vibrator and a circuit for controlling LEDs

synchronous with music.

For the headphone, it is provided with a stereophonic output terminal.

For the purpose of enabling YMU762C to demonstrate its full capabilities, Yamaha purpose to use "SMAF:Synthetic music

Mobile Application Format" as a data distribution format that is compatible with multimedia. Since the SMAF takes a

structure that sets importance on the synchronization between sound and images, various contents can be written into it

including incoming call melody with words that can be used for training karaoke, and commercial channel that combines

texts, images and sounds, and others. The hardware sequencer of YMU762C directly interprets and plays blocks relevant

to synthesis (playing music and reproducing ADPCM with FM synthesizer) that are included in data distributed in SMAF.

8. MemorySignals in the OM6359 enable two memories. They use only one volt supply voltage, VDD3 in the PCF50601. This

system uses Samsung's memory, KBB06A500M-T402. It is consisted of 128M bits flash NOR memory and 128M bits

flash NAND memory and 64M bits SCRAM. It has 16 bit data line, HD[0~15] which is connected to OM6359 and

MV317S. It has 26 bit address lines, HA[1~26]. CS_NAND and NCSRAM signals are chip select. Writing process,

HWR_N is low and it enables writing process to flash memory and SRAM. During reading process, HRD_N is low and

it enables reading process to flash memory and SRAM. Each chip select signals in the OM6359 select memory among 2

flash memory and SCRAM. Reading or writing procedure is processed after HWR_N or HRD_N is enabled. Memories

use reset, which is VDD3 delay from PCF50601. HA[25] signal enables lower byte of SRAM and HA[26] signal enables

higher byte of SRAM.

9. OM6359OM6359 is consisted of ARM core and DSP core. It has 8x1Kword on-chip program/data RAM, 55 Kwords

on-chip program ROM in the DSP. It has 4K*32bits ROM and 2K*32bits RAM in the ARM core. DSP is consisted

of KBS, JTAG, EMI and UART. ARM core is consisted of EMI, PIC(Programmable Interrupt Controller),

reset/power/clock unit, DMA controller, TIC(Test Interface Controller), peripheral bridge, PPI, SSI(Synchronous Serial

Interface), ACC(Asynchronous communications controllers), timer, ADC, RTC(Real-Time Clock) and keyboard interface.

KBIO(0:7), address lines of DSP core and HD[0~15]. HA[1~26], address lines of ARM core and HD[0~15], data lines of

ARM core are connected to memory, YMU762C. MV317S(Camera DSP Chip) controls the communication between ARM

core and DSP core.

CS_NAND, NCSRAM, NCSFLASH in the ARM core are connected to each memory. HWR_N and HRD_N control the

process of memory. External IRQ(Interrupt ReQuest) signals from each units, such as, PMU need the compatible process.

KBIO[0~7] receive the status from key and RXD0/TXD0 are used for the communication using data link

cable(DEBUG_DTR/RTS/TXD/RXD/CTS/DSR).

It has JTAG control pins(TDI/TDO/TCK) for ARM core and DSP core. It receives 13MHz clock in CKI pin from

external TCXO. ADC(Analog to Digital Convertor) part receives the status of temperature, battery type and battery voltage.


Circuit Description

2-5


10. TOH2600DGI4KRA(26MHz)

This system uses the 26MHz TCXO, TOH2600DGI4KRA, SEM. AFC control signal from OM6359 controls frequency

from 26MHz x-tal. The clock output frequency of UAA3536 is 13MHz. This clock is connected to OM6359, YMU762C.

11. Camera DSP(MV317S)Tiger is an Integrated circuit for mobile phone camera. This structure will allow effectiveness for large

data management and significantly reduces main processor will get burden.

In hence, Tiger will allow the user to be able to display to LCD direct without burdening the main

processor. It also allows to have various kinds of display size on the LCD and snapshot for Jpeg. Digital

effect will also be executed on real time base resulting Tiger as being a video co-processor in the

mobile platform. Also,an i80 type processor’ s 16bit parallel interface of Tiger makes it available for the CPU to

interchange the data with Tiger. As the additional 8Mbit is usable except 2Mbit buffer embedded in Tiger, the diverse UI

data processing which is not a burden to the CPU is available. JPEG encoder and decoder are baseline

ISO/IEC 10918-1 JPEG compliance (DCT-based). JPEG decoder supports YUV444, YUV422, YUV420 and

YUV411 format standard JPEG image.


Circuit Description

2-6



3. Exploded View and Parts list

3-1


1. Cellular phone Exploded View

QFU01

QPC01

QVO01

QRF03

QCR08

QME01

QAN02

QRF01

QLC01

QCA01

QFL01

QCR17

QSC08

QMW02

QSP01

QFR01

QKP01

QMI01QMP01

QRE01

QBA01

QCR21

QIF01

QCK01

QMO01

QSC05

QMI03


Exploded view and Part list

3-2


2. Cellular phone Parts list

Location

NO.Description SEC CODE Remark

QFU01 FOLDER UPPER GH75-06199A

QLC01 LCD GH07-00653A

QPC01 FPCB GH41-00774A

QSP01 SPEAKER 3001-001731

QMO01 MOTOR DC 3101-001401

QCA01 UNIT CAMERA GH59-01472A

QFL01 FOLDER LOWER GH75-06200A

QSC05 SCREW SHEET R GH74-08872A

QSC08 SCREW SHEET L GH74-08873A

QCR17 SCREW MACHINE 6001-001639

QMW02 WINDOW MAIN GH72-19197A

QFR01 FRONT COVER GH75-06331A

QRF03 EAR COVER GH72-19199A

QMI03 MIC RUBBER GH73-04064A

QCK01 CAMERA KEY GH75-06567A

QVO01 VOLKEY ASSY GH75-06566A

QKP01 KEYPAD GH75-06201A

QMP01 MAIN PBA GH92-02030A

QME01 UNIT METAL DOME GH59-01921A

QMI01 MICROPHONE ASSY GH30-00130A


QAN02 INTENNA GH42-00523A

QRE01 REAR COVER GH75-06202A

QRF01 RF SHEET GH74-13063A

QIF01 IF COVER GH72-19208A


QBA01 BATTERY GH43-01658A



3-3


3. Test Jig (GH80-01909A)

3-1. RF Test Cable

(GH39-00283A)

3-2. Test Cable

(GH39-00217A)

3-3. Serial Cable

3-4. Power Supply Cable 3-5. DATA CABLE

(GH39-00219A)

3-6. TA

(GH44-00482A)



3-4



4. Electrical Parts List


4-1

Design LOC SEC CODE

BAT400 4302-001119

C100 2203-005482

C101 2203-005057

C102 2203-005057

C103 2203-005482

C104 2203-000995

C105 2203-005138

C106 2203-000359

C107 2203-000836

C108 2203-005482

C109 2203-000812

C110 2203-001101

C111 2203-000854

C112 2203-000812

C113 2203-005057

C114 2203-005482

C115 2203-000812

C116 2203-000854

C117 2203-000812

C118 2203-005496

C119 2203-000438

C120 2203-000438

C121 2203-000278

C122 2203-005496

C123 2203-000233

C124 2203-000278

C125 2203-006053

C126 2203-000254

C127 2203-005482

C128 2203-005057

C129 2203-005057

C130 2203-005482

C131 2203-000233

C132 2203-001153

C133 2203-000604

C134 2203-000854

C135 2203-000278

Design LOC SEC CODE

C136 2203-000585

C137 2203-000585

C138 2203-000585

C139 2203-000585

C141 2404-001239

C142 2203-000254

C144 2203-000812

C145 2203-000233

C146 2203-000233

C147 2203-001385

C148 2203-000311

C149 2203-000585

C150 2203-002443

C151 2203-005053

C152 2203-000438

C153 2203-001153

C155 2203-000438

C156 2203-000438

C200 2203-005061

C202 2203-005482

C203 2203-005061

C204 2203-000679

C205 2203-000995

C206 2203-000254

C207 2203-005482

C208 2203-000254

C209 2203-005482

C210 2203-005482

C211 2203-005482

C212 2203-005482

C300 2203-000233

C301 2203-000679

C302 2203-005061

C303 2203-000438

C304 2203-005061

C305 2203-005496

C306 2203-006208


Electrical Parts List

4-2

Design LOC SEC CODE

C307 2203-005061

C308 2203-005509

C309 2203-002687

C310 2203-005483

C311 2203-006093

C312 2203-006208

C313 2203-005061

C314 2203-000254

C315 2203-005061

C316 2203-001259

C317 2203-000438

C318 2203-001259

C319 2203-006053

C400 2203-005482

C401 2203-005061

C402 2203-006208

C403 2203-005482

C406 2203-000254

C407 2203-000278

C408 2203-006208

C409 2404-001225

C411 2203-000330

C412 2203-005482

C413 2203-000330

C414 2203-001652

C415 2203-006053

C416 2203-006324

C417 2203-000888

C418 2203-006208

C419 2203-006208

C420 2203-006208

C421 2404-001225

C422 2203-005482

C424 2404-001225

C425 2203-001652

C426 2203-006053

C427 2404-001225

Design LOC SEC CODE

C428 2203-006053

C429 2203-006053

C430 2203-006053

C431 2203-006053

C502 2203-005061

C505 2203-005061

C506 2404-001268

C507 2404-001268

C508 2203-005061

C600 2203-000330

C602 2203-000995

C603 2203-005061

C604 2203-005061

C605 2203-002443

C606 2203-000854

C608 2203-000995

C609 2203-000278

C610 2203-005061

C611 2203-000386

C612 2203-000330

C613 2203-000278

C614 2203-000679

C615 2203-000679

C617 2203-000854

C619 2203-005482

C620 2203-000438

C621 2203-000438

C622 2203-005482

C625 2203-000812

C626 2404-001352

C627 2404-001352

C628 2203-000278

C702 2203-000254

C703 2203-006257

C704 2203-000278

CN400 3709-001273

CN500 3710-001994



4-3


Design LOC SEC CODE

CN501 3711-005783

CN502 3705-001355

D700 0406-001201

D701 0406-001201

EAR600 3722-002249

F100 2904-001469

F101 2904-001480

F102 2904-001470

F103 2901-001254

F700 2901-001286

F701 2901-001286

F702 2901-001286

F703 2901-001286

F704 2901-001286

F705 2901-001286

HDC700 3711-005551

L100 2703-002208

L101 2703-002203

L102 2703-002208

L103 2703-001722

L104 2703-002267

L105 2703-002199

L106 2703-001748

L107 2703-001722

L109 2703-002204

L110 2703-001723

L111 2703-001749

L112 2703-001723

L113 2703-001723

L114 2703-001970

L620 3301-001729

LED700 0601-001602

LED701 0601-001602

LED702 0601-001602

LED703 0601-001602

LED704 0601-001602

LED705 0601-001602

Design LOC SEC CODE

LED706 0601-001602

LED707 0601-001790

LED708 0601-001602

LED710 0601-001790

LED711 0601-001790

LED712 0601-001602

LED713 0601-001790

LED714 0601-001602

OSC100 2809-001294

OSC101 2806-001329

OSC300 2801-004285

Q600 0504-001012

Q700 0506-000107

R100 2007-007148

R101 2007-000141

R102 2007-007528

R103 2007-000566

R104 2007-001298

R105 2007-007142

R106 2007-007311

R107 2007-001305

R108 2007-001305

R109 2007-000566

R110 2007-000148

R111 2007-001305

R112 2007-008117

R113 2007-001305

R114 2007-001308

R115 2007-001305

R116 2007-000142

R117 2007-000142

R118 2007-000775

R119 2007-000142

R120 2007-000171

R121 2007-000142

R123 2007-000171

R124 2007-001288



4-4

Design LOC SEC CODE

R125 2007-001313

R126 2007-001313

R127 2007-000171

R128 2007-007314

R129 2007-000147

R130 2007-000148

R131 2007-000148

R132 2007-000171

R200 2007-000171

R201 2007-000162

R202 2007-007107

R203 2007-007142

R204 2007-007107

R205 2007-007142

R206 2007-000162

R207 2007-000162

R208 2007-007001

R209 2007-000141

R210 2007-000141

R211 2007-000162

R212 2007-000172

R213 2007-000172

R300 2007-007014

R301 2007-001313

R302 2007-007014

R303 2007-001325

R304 2007-000153

R305 2007-000171

R306 2007-001319

R307 2007-007013

R308 2007-007001

R310 2007-000162

R311 2007-000162

R312 2007-000162

R313 2007-000162

R314 2007-000162

R315 2007-000162

Design LOC SEC CODE

R317 2007-000140

R318 2007-007100

R319 2007-000139

R400 2007-000148

R401 2007-007100

R402 2007-001325

R403 2007-000171

R450 2007-000171

R500 2007-000162

R501 2007-000162

R507 2007-007573

R508 2007-000162

R509 2007-007334

R511 2007-007317

R512 2007-007588

R600 2007-000162

R601 2007-000140

R603 2007-000148

R605 2007-000242

R606 2007-001308

R607 2007-000148

R608 2007-007334

R610 2007-007334

R611 2007-002796

R612 2007-000171

R613 2007-000171

R614 2007-007981

R615 2007-007489

R700 2007-000143

R701 2007-000143

R703 2007-000174

R704 2007-000174

R705 2007-000174

R706 2007-000174

R707 2007-000174

R708 2007-000174

R709 2007-000174



4-5


Design LOC SEC CODE

R710 2007-000174

R711 2007-000174

R712 2007-000174

R713 2007-000174

R714 2007-000174

R715 2007-000174

R716 2007-000174

R719 2007-008672

SW300 3404-001152

SW600 1009-001018

SW700 3404-001152

SW701 3404-001152

TH200 1404-001221

U100 1205-002327

U102 1201-002174

U103 2909-001246

U200 1205-002607

U201 0801-002882

U300 0801-002237

U301 1204-002161

U302 1109-001316

U303 GH13-00020A

U304 0801-002882

U306 0801-002882

U400 1205-002350

U500 2901-001246

U502 1203-003486

U603 1001-001253

U610 1202-001036

U701 1203-001917

U702 1203-003459

V600 1405-001082

V601 1405-001082

V602 1405-001082

V603 1405-001082

V604 1405-001082

V605 1405-001082

Design LOC SEC CODE

V700 1405-001128

V702 1405-001128

V704 1405-001128

V705 1405-001128

V706 1405-001128

V707 1405-001128

V708 1405-001128

V709 1405-001128

V710 1405-001128

V711 1405-001128

X400 2801-004339

ZD501 0403-001427

ZD502 0403-001387

ZD600 0406-001194

ZD601 0406-001194

ZD700 0406-001194

ZD701 0406-001194



4-6


5. Block Diagrams

5-1

1. RF Solution Block Diagram

SGH-X640 RF Block Diagram

100 kHz+fmod

REFIN VTCXOTCO-5871U

pi -PAD

pi -PAD

I+

fmodI-

Q+

Q-

~~

pi -PAD

Vcc_RF_VCO

Discrete 3rd Order Loop Filter

MURATA TX VCO

GSM = 824 ~ 915 MHz(Vt=0.5V ~ 3.0 V )RFMD PAM

RF5146 7x7

Discrete 3rd Order Loop Filter

RXON

Vcc_Tx_BURST

GSM IN

EN

CLK

DATA

DCS, PCS S/W

OFFSET Mixer input power-16dBm max, -22dBm min

fcompRF =26MHz

Philips TransceiverUAA3536

Pins IA,IB,QA and QBV IQ : 1.25V typ . , 1.15V min , 1.35V max

Vmod : 0.5Vpp

FE_SW1

FE_SW2

QUAD

DIV

PFDCP

VREG

~

Vcc_RF_LO

FracNDIV

1:1/2

VREG

26MHz

Vcc_REF(2.4V typ.)

Vcc_SYN

FE_SW1

FE_SW2

3WBUSCTLREG

PWREN

GSM/DCS/PCS

DIVQUAD

PFDCP

fTXIF

60/114MHz

+ I OUT- I OUT

- Q OUT+ Q OUT

FESWONSYNONTXON

GSM S/W

VRAMP

TX ENABLE

BAND SELECT

DCS/PCS IN

VBAT

REF_13M

MQW510C869M

FUJITSU EGSM RX SAW Filter

FAR F5EB-942M50-B28CH IL=2.7dB max

Ripple=1.7 dB max

FUJITSU DCS RX SAW Filter FAR-F6EB-1G8425B2BW

IL= 2.3dB maxRipple= 2.0dB max

FUJITSU PCS RX SAW Filter FAR-F6EB-1G9600B2BW

IL= 2.8dB maxRipple= 1.6dB max

PCS RX ON

DCS: Pout = 33.0 dBm E ff = 52%PCS: Pout = 32.0 dBm E ff = 55%

GSM: Pout = 35.0 dBm E ff = 58%DCS,PCS = 1710 ~ 1910 MHz(Vt=0.5V ~ 3.0 V )

Harmonics <= -15dBcPout= 6.5 3dBm typ.,Ic <= 33mA

X4.8X 1.5 mm)(5.5

HITACHI METAL ANT SWITCH

SHS-C090T (4.5X3.2)

Imax = 10 mAFreq (MHz ) Loss 880 - 915 1.2 dB 925 - 960 0.9 dB 1710 -1785 1.2 dB 1805 -1880 1.2 dB 1930 -1990 1.2 dB


Block Diagrams


5-2

2. Base Band Solution Block Diagram

BatteryType

BatteryVoltage

BatteryTemperature

AFC

RAMP

Charging Circuit

Li-Ion Battery

OM6359VIBRATOR

SYSTEM CLOCK(13MHz)

MEMORY

NAND(128Mb)NOR(128Mb)SRAM(64Mb)

RTC_CLOCK(32.768KHz)

LCDSIM CARD

RECEIVER

KEY

RF INTERFACE

VCC_CP

Serial DataInterface

I/OInterface

A/DInterface

BB INTERFACE

MELODY IC(40 Poly)SPEAKER

BB Block Diagram of SGH-X640

PMU

CAMERA

MV317

MICVCC_RF_VCO

VCC_RX_TX

VCC_SYN

VCC_TX_BURST

VDD1

VDD2

VDD3

VDD_VIB

MIC_BIAS

VDD_KEY

SPVDD

AVDD

AVDD_TEMP

BL_VDD


6. PCB Diagrams

6-1

1. Main PCB Top Diagram


PCB Diagrams


6-2

2. Main PCB Bottom Diagram


7. Flow Chart of Troubleshooting


7-1

1. Power On

Check the Battery Voltageis more than 3.4V

' Power On ' does not work

Change the Battery

END

No

Yes

C414(V_ISUP) = 2.7V? Check the PMU related to V_ISUPNo

Yes

Check the Clock atR401=32KHZ Resolder X400

No

Yes

C431 (VDD1) = "H"? Check the VDD1 circuitNo

Yes

C430(VDD2) & C429(VDD3)= 2.8V? Check the VDD2,VDD3 circuit

No

Yes

Check for the clock at C126= 13MHz

Check the clock generation circuit

(related to U100)

No

Yes

Check the initial operation

Yes

Yes


Flow Chart of Troubleshooting

7-2

Power On

4V

2V85

3V05

AV

DD

_TE

MP

2V1

VC

C_R

X_T

X

MIC

_BIA

S

data

RE

FE

RE

NC

E

SIM

_RS

T

INT

ER

FA

CE

SIM

_CLK

2V7

VD

D1

BL_

VD

D

BA

TT

ER

Y

TYP

DVDD1

2V95

2V

7

htm

p

3V25

CLO

CK

HFA

cont

rol

inte

rnal

SIM

_IO

MIC

BIA

S

SW

ITC

H

VC

C_R

F_V

CO

MO

DU

LE

VD

D_A

MP

CO

NTR

OL

INTE

RFA

CE

volta

ge

SU

PP

LY &

RF

pow

er s

uppl

y

ON

-CH

IP

(CH

AR

GE

CLO

CK

AV

DD

VC

C_R

X_B

UR

ST

2V35

PM

U (

IC)

3V05

INTERRUPT

3V

PU

MP

+

TE

MP

HIG

H

SIG

NA

L

12C

CH

AR

GE

2V65

Bas

eban

d po

wer

sup

ply

VD

D_K

EY

VC

C_C

P

&

supp

ly

GENERATOR

ON

/OFF

SIM

VD

D

VD

D2

VD

D_V

IB

htmp

SIM

HIG

H V

OLT

AG

E

VO

LTA

GE

32K

S

EN

SO

R

V_I

SU

P

VC

C_S

YN

BA

CK

LIG

HT

cloc

ks

2V65

TYP

PLL

2V7

stat

us

ovdd

LIN

RE

G)

SIG

NA

L

DVDD2

2V85

CH

AR

GE

C

ON

TRO

L

SU

PP

LY

INT

ER

NA

L

refe

renc

e

RE

AL-

TIM

E

VB

AT

SIM

DVDD3

AVDD

MO

NIT

OR

in

tern

al

5V

32K

Hz

XTA

L O

SC

ILLA

TOR

SIM

2V7

DVDD4

refg

nd

GE

NE

RA

TOR

SIM

_VC

C

CO

NTR

OL

LIN

RE

G

X40

0

2 1

RF

pow

er s

uppl

y

bias

cur

rent

s

SU

PP

LY

VIB

1V35

PU

MP

VD

D3

Bas

eban

d po

wer

sup

ply

2V7

calib

ratio

n

C40

5

C42

1

R40

0

VB

AT

C41

2

C41

8

C42

0

*

C41

4

C42

7

VB

AT

VD

D1

BLV

DD

SP

VD

D

C40

0

V_I

SU

P

TP40

0

C41

7

BA

T400

C40

1

R40

2

R40

1

C41

6

VC

C_C

P

*

C42

5

VB

AT

VB

AT

VB

AT

VD

D_K

EY

4 5 6

G 7

8 G

G 9

10

G

AV

DD

_TE

MP

CN

400

1 2 3

C43

0

C41

3

C40

7 C

408

R40

3

C42

6

C40

3

TP40

1

C40

9

C42

2

C40

4

C40

2

VB

AT

C41

9

V_I

SU

P

C42

8

R45

0

C43

1

VB

AT

C40

6 C

411

C42

4

C41

5

MIC

_BIA

S

C42

9

AV

DD

F4 VSS4 G

4 VSS5 J3 VSS6 G

5 K5

VSS7 VSS8 F

6 G

6

VSS9

D7

VSS15 VSS16 C

7 D

6

VSS17 VSS18 E

5 D

5

VSS19

VSS2 F5

VSS20 D4

C4

VSS21

VSS3

VIBVDD A3

VPROG H7

VSS1 E4

VSS10 G7 G

8

VSS11 VSS12 F

7 E

6

VSS13 VSS14 E

7

SIMSCP

B1

SIMVBAT

B2

SLPMOD D10

TM

H5

J5

VB

AC

K

VB

AT

K4

VC

C C

2

B3

VIBVBAT

E3

SD

A

F2

SEL12RB E9

SEL3RB H4

SIM

CLK

C

6

SIMGND

A2

B8

SIM

IO

SIMSCN

A1

RF1

VD

DS

F

9

RF2

SN

S

H9

RF2

SW

S

E10

RF2

VD

D

H10

RF2

VD

DS

J1

0

RFV

BA

T G

9

C1

RS

T

D9

RSTO

SC

L

K1

REC2

J2 REC3

K2

RE

FC

H8

RE

FGN

D

K6

RF1

SN

S

F10

E8

RF1

SW

S

RF1

VD

D

G10

H6

ISU

PD

J4

MIC

BIA

S

J6

NC

1 N

C 2

H3

ONKEY

K8

OS

C32

I K

9 O

SC

32O

REC1

B9

HV

SO

C

B10

H

VS

SC

N

A10

H

VS

SC

P

C9

HV

SV

BA

T C

8

HV

SV

DD

D

8

C10

INT

IO D

2

ISU

PA

H2

DVDD4

A4

DVDD4ON

F8 DVDD4VBAT

B4

HFAVBAT

A5

B5

HFAVBAT

A6

HFAVDD HFAVDD

B6

HV

SG

ND

CP

RE

S

D1

DVDD1 F1 DVDD1VBAT F

3

DVDD2 G2 G

1

DVDD2

DVDD2VBAT

G3

DVDD3

H1

J1

DVDD3

DVDD3VBAT

BB

MS

W

C5

BLV

BA

T B

7 B

LVD

D

A7

CH

RIV

E

1 C

HR

RE

G

E2

CH

RV

BA

T D

3

CLK

C3

CLK32

A9

PC

F506

01E

T1-N

5

U40

0

K3

AUXON

J7

AVDD AVDD

K7

AVDDS

K10

AVDDVBAT J8 J

9

AVDDVBAT

BB

MG

ND

A

8

TP40

2

VC

C_R

X_T

X

VC

C_S

YN

TH

VC

C_R

FVC

O

VC

C_T

X_B

UR

ST

BA

CK

LIG

HT

VD

D1

VD

D2

VD

D3

VD

D_V

IB

VIB

JIG

_RE

C

RE

F_O

N

SIM

IO

SIM

CLK

PO

N_T

X

PO

N_S

YN

TH

CH

AR

GE

R_O

K

RS

TON

SC

L S

DA

32K

IT_P

MU

ON

KE

Y_N

RE

CO

1 JA

CK

_IN




7-3

2. Initial

R200 (RSTON) ="H"?

Initial Failure

Check the circuit related to reset

END

No

Yes

Is U304 pin 4,6(memory CE) OK?

Yes

Yes

No

Check the U304

Check the circuit aroundLCD & U304 (Short or not solder)

Yes



7-4

Initial

R20

2

R71

9 V

DD

1

R20

6

R20

9

VD

D1

DD

R20

1 R

200

AV

DD

R21

2

VSS_VBOUT

C20

1

VSS_I C3

VSS_K G1 VSS_M

VSS_N K1 P1

VSS_O N5 VSS_P

C13 VSS_REF A12

VSS_VB C11

VSS_B

E13 VSS_BB

VSS_C M7

D11 VSS_D

N10 VSS_E

N14 VSS_F N11

VSS_G VSS_H G13

E8

L3 VDDE3_G

F12 VDD_BB VDD_D C9

D14 VDD_REF VDD_VB B12

C12 VDD_VBOUT

C14

V

RE

F

K7 VSS_A J1

N12 VDDE1_B VDDE1_C C8

VDDE1_D H11

VDDE2_C P8 C1 VDDE2_E

VDDE3_A P4 M6 VDDE3_B

VDDE3_F G2

TXD0

TXD A4

G12

T

XO

N

F5 VDDC_A N13 VDDC_B M8 VDDC_C

VDDC_D K6

P9 VDDE1_A

SIM

CLK

M

14

SIM

ER

R

M11

M13

S

IMIO

A3 TCK

D2 TDI

D3 TDO

A2 TMS

A1 TRST_N

C5

M10

R

STO

_N

RS

T_N

H

10

RXT0_N A5

C4 RXD0

D4 RXD1

RX

ON

H

12

C2

SC

K

SD

A

B3

RF

SIG

2 R

FS

IG3

B6

A7

RF

SIG

4 R

FS

IG5

C7

B7

RF

SIG

6 R

FS

IG7

C6

E7

RF

SIG

8 K

10

RF

SIG

9

QN

Q

P

H13

RE

SE

TN

C10

J12

RFE

_N0

K12

R

FE_N

2

D5

RF

SIG

0 R

FS

IG1

A6

RFS

IG10

D

7

D6

L13

KB

IO5

KB

IO6

L12

L14

KB

IO7

D10

M

CLK

MIC

N

B13

A

13

MIC

P

PW

M0

F4

E6

PW

M1

H14

IN

IP

J13

B4 J_SEL

KB

IO0

K11

K

BIO

1 J1

0 K

BIO

2 K

13

J11

KB

IO3

KB

IO4

L11

HD

4 H

D5

H1

B1

HD

6 E

4 H

D7

F3

HD

8 H

D9

F2

HR

D_N

H

5 H

WR

_N

L5

J14

HD

10

HD

11

E1

HD

12

D1

E3

HD

13

HD

14

E2

HD

15

B2

H2

HD

2 J3

H

D3

E5

HA

4 N

3 K

5 H

A5

HA

6 M

3

HA

7 P

2

HA

8 N

2 M

1 H

A9

H4

HD

0 H

D1

H3

F1

G4

HA

20

P5

HA

21

N6

HA

22

L6

HA

23

HA

24

J7

J6

HA

25

HA

26

H6 L4

HA

3

M2

HA

14

J2

J5

HA

15

HA

16

K3 J4

HA

17

HA

18

K4

K2

HA

19

HA

2 P

3

GP

IO8

GP

IO9

N8

GP

ON

1 L1

0 G

PO

N2

N9

M4

HA

1

HA

10

N1 L2

HA

11

HA

12

L1

HA

13

K9

GP

IO10

K

8

GP

IO2

L8

GP

IO3

M9

GP

IO4

P7 L7

GP

IO5

GP

IO6

L9

N7

GP

IO7

P6

CS

_N0

N4

G5

CS

_N1

M5

CS

_N2

CS

_N3

G3

B5 CTS0_N

A11

E

AR

N

EA

RP

B

10

M12

G

PIO

0 G

PIO

1

BU

Z

E10

C

CLK

CD

I D

8 E

9 C

DO

D9

CE

N

CK

I P

11

P13

C

KI3

2I

CK

I32O

P

14

AU

XS

P

A10

G10

A

UX

ST

P12 AVDD

P10 AVSS

BD

IO

E11

BIE

N

F10

F11

BIO

CLK

BO

EN

G

11

B11

AU

XA

DC

3 F1

3 A

UX

AD

C4

E12

A

UX

DA

C1

AU

XD

AC

2 D

13

D12

A

UX

DA

C3

AU

XM

ICN

A

14

B14

A

UX

MIC

P

K14

A

UX

ON

AC

LK

B8

A8

AD

I

AD

O

A9

AFS

B

9

F14

AU

XA

DC

1 A

UX

AD

C2

G14

E

14

R20

3

U20

0

VD

D2

DC

L

VD

D3

DU

VD

D1

R20

4

VD

D1

C20

2

R21

3

TP4

R21

1

VD

D1

R20

5

R20

8

FSC

R20

7

VD

D3

VD

D3

TH20

0

AV

DD

_TE

MP

U20

1

A 1 2

GN

D

VC

C

5 6 Y

0

Y1

43

_E

C20

0

VD

D2

R21

0

HA

(26)

HA

(24)

H

A(2

5)

CS

_NA

ND

CTS

0

ME

LOD

Y_C

S

IMA

GE

_CS

H

A(2

0)

FLA

SH

_EN

EA

RP

_P

EA

RP

_N

AN

TSW

_ON

AV

DD

_TE

MP

NC

SFL

AS

H

GS

M_T

XV

CO

_EN

D

CS

_TX

VC

O_E

N

BA

ND

_SE

L

M_R

ST

IMA

GE

_IN

T

FLIP

RS

TON

R

I_B

LUE

HA

(1:2

6) H

D(0

:15)

32K

JAC

K_E

N

EN

D_O

F_C

HA

RG

E

M_S

EL

VF

CH

G_O

N

ME

S_B

ATT

AU

X_M

IC_N

AU

XS

P

EA

RP

_HF

RF_

BB

I_C

LK

RF_

BB

I_D

ATA

IMA

GE

_RE

SE

T

HA

(23)

RF_

EN

_SY

NTH

PO

N_R

X

PA

M_T

XE

N

AF

C

RA

MP

D_R

EF_

13M

QR

X_T

X_P

Q

RX

_TX

_N

IRX

_TX

_P

IRX

_TX

_N

MIC

_P

MIC

_N

AU

X_M

IC_P

DD

DC

L D

U

FSC

PC

S_R

X

BIO

CLK

BO

EN

B

DIO

B

IEN

CTS0

TXD0 RXD0

SD

A

SC

L

IT_P

MU

SIM

IO

SIM

CLK

RE

F_O

N

J_SEL

RTS0

RXD1

TCK

TDI

TDO

TMS

TRST_N

TXD1

HA

(11)

H

A(1

2)

HA

(13)

H

A(1

4)

HA

(15)

H

A(1

6)

HA

(17)

H

A(1

8)

HA

(19)

H

A(2

0)

HA

(21)

H

A(2

2)

HA

(1)

D_R

EF_

13M

HW

R_N

H

RD

_N

NC

SR

AM

PO

N_T

X

PO

N_S

YN

TH

KB

IO(0

:7)

KB

IO(7

) K

BIO

(6)

KB

IO(5

) K

BIO

(4)

KB

IO(3

) K

BIO

(2)

KB

IO(1

) K

BIO

(0)

HA

(2)

HA

(3)

HA

(4)

HA

(5)

HA

(6)

HA

(7)

HA

(8)

HA

(9)

HA

(10)

HD

(0)

HD

(1)

HD

(2)

HD

(3)

HD

(4)

HD

(5)

HD

(6)

HD

(7)

HD

(8)

HD

(9)

HD

(10)

H

D(1

1)

HD

(12)

H

D(1

3)

HD

(14)

H

D(1

5)




7-5

3. Charging Part

Check the C508> 4.9V

Abnormal charging part

END

No

Yes

U502 pin 5 = "H"?No

Yes

Check the C507≒ 4.2V

No

Yes

Check the the circuit related to

V_EXT_CHARGE

Resolder or replace U502

Check the circuit related to

CHG_ON signal

Yes

U502 pin = "L"?

Yes

No




7-6

Charging

VDD2

_ACPR 7

_CHRG 3

8 _EN

9 GG

10 11 GG

12

4 GND

ITERM 1

PROG 5

6 VCC

U502

2 BAT

R509 V_EXT_CHARGE

R511

C508

C507

R508

C505

ZD501

VBAT

R507

R512

C506

CHARGER_OK

CHG_ON

MES_BATT

END_OF_CHARGE




7-7

4. Sim Part

CN400 pin 1,5 = "H"?

Phone can't access SIM Card

Check the sim charge pump

Check the SIM Card

END

No

Yes

Yes

Yes

No

Check the 32k OSCAfter Power ON,

Check SIMCLK Signal on CN400pin3 in a few second

Yes

No

Replace PBAAfter SIM card insert,CN400 pin 2 = "H(SIM_RST)"?

Yes



7-8

5. Microphone Part

Check the connectionfrom MIC

Check the circuitfrom U200 to MIC

Resolder MIC

Resolder the R601, R605, R611, R612, R613,

C604 and C610

END

No

Yes

Yes

Yes

Yes

No

Check the MIC

No

Replace the MIC

Microphone does not work




7-9

Microphone

Close to microphone

V601 R605 C613

R611

C611

C607

V600

C601

0

R613

MIC_BIAS

R601

C600

C606 R612

0

C608

C626 C627

C602

MIC600

C604

C612

C610 R603 C609

MIC-JTAG

MIC_N

MIC_P



7-10

6. Speaker Part(Melody)

U300 pin 5 = 2.85V?

Speaker does not work

Check the Clock signal atPin 1 of U301 (13MHz)

Check the clock generation circuit(related to OSC100 and U301)

END

No

Yes

No


U301 pin 17,18 ≒ 1.8V?(When U301 operate) Resolder U301

Yes

No

HDC700 pin 40,42≒ 1.8V?

Check the circuit related to"SPK_P/SPK_N" signal

Yes

No

Is Speaker working?

No

Yes

Change the Speaker

Yes

Yes




7-11

Speaker

MELODY IC

R300

R305

C306

VDD3

C309

/WR

7 VDD

9 VREF

8 VSS

/CS

29

3

/IRQ

/RD

31

4

/RST

28

IOV

DD

LED 2

19 MTR

5 NC

PLLC 6

17 SPOUT1

SPOUT2 18

15

SP

VD

D

SP

VS

S

16

EQ

2

EQ

3

14

33

G

G

34

35

G

G

36

HP

OU

T-L/

MO

NO

10 11

HP

OU

T-R

32

D1

25 D2

D3 24

23 D4

D5 22

D6 21

D7 20

EQ

1

12 13

U301

A0

30

1 CLKI

D0

27 26

C303

R303

2

NC 1

OUT 4

VCC 5

U300

GND 3

IN

VDD2 VDD2

R306

C300

C307

C301

C305

C304 C302

R301

R308 C310

VDD2

R302

R307

HD(7)

HD(6)

HD(5)

HD(4)

HD(3)

HD(2)

HD(1)

HD(0)

HA(1)

AMP_P

AMP_N

SPVDD

MELODY_CS

HRD_N

M_RST

HWR_N

VIB

EARP_HF

MEL_13M



7-12

7. Key Data Input

When one of the keys ispushed,

is it displayed on LCD?

Check the Dome sheet & Key Pad

END

No

Yes

Yes

Check Initial Operation

When one of the keys ispushed,

KBIO signal is OK?

Replace the PBA

No

Yes




7-13

8. Receiver Part

U603 pin 9, 13 = 1.5V? Resolder or replace U603

END

No

Yes

Yes

Receiver does not work

SPK +,- PAD = 1.5V? Cange LCD module

No

Yes

Is Receiver working? Replace the Receiver

No

Yes

No


Yes

No

Resolder EAR600EAR600 pin 4, 5 = short?

Yes

HDC700 pin 40,42 = 1.5V?

No

Resolder HDC700

Yes

Check the soldering of thespeaker wire

No

Modify the speaker wire soldering

Yes

U603 pin 1, 5 = 1.5?



7-14

9. LCD Part

Is LCD Contrast set on highlevel in the Menu?

Set LCD Contrast on high level

END

No

Yes

Yes

LCD does not work

HDC700 pin 24 = 2.8V? Check the R304, C308

No

Yes

HDC700 pin 19(L_WR),20(RS) is OK?

Check the U303

No

Yes

Yes

Replace the LCD Module




7-15

10. Key Back Light

U701 pin 5 = "H"? Check the PMU related to "VDD_KEY"

END

No

Yes

Yes

Key Backlight does not work

U701 pin 2,3 = "H"?

No


Yes



7-16

11. Camera part

"Camera" function does not work

Yes

NoConnect the camera moduleCheck the Camera

connector on LCD module

Yes

HDC700 pin 48, 50= 2.8V?

No

Check LCD and HDC700

Yes

OSC300 Pin 1 = 24MHz?No

Check OSC300 and R318

Yes

HDC700 pin 24 = 2.8V?

Yes

No

Check the R304, C308

Is there another problem?

END

Replace the cameramodule

Yes




7-17

12. GSM Receiver

U103 Pin7>= -65dBm Resolder CN100, C144

END

No

Yes

RX ONRF input : CH center freq

Amp : -50dBm

Check U103pin4 = L, pin8 = L

U103 pin5>= -65dBm

F100 pin1>= -70dBm

U100 pin6, 7, 8, 9>= 1V

U100pin32 >= -70dBmpin33 >= -70dBm

Check ANT Switchcontrol circuit

Resolder U103

Resolder F100, C104, L103

Resolder L100, L101, L102

Check U100pin10,22,28 >=2.7V

pin20 >=4.0VCheck & Resolder

RF PSU Part

Check &ResolderU100, RF26MHz part,

R100, R101R116, R117, R119R121 >= 1V

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No No

No

Check U200



7-18

13. GSM Transmitter

U103 Pin7>= 20dBm Resolder CN100, C144

TX ON (5Level)

Check U103pin4 = H (2.68V),

pin2,8 = L

U103 pin11>= 20dBm

U102 pin6>= 20dBm

OSC101 pin1>= 6dBm

U102 pin48>= 3dBm

Change or Resolder U100


Resolder L113,L114,C151

Resolder R123

U100 pin6, 7, 8, 9>= 500mV

Yes

Check U102VBATT, pin42,43

OK?Resolder or Change U102

or check PAM control signal

Check +VBATT

Check U100pin4 >= 4.0V

pin22,28 >=2.7VOK?

Check & ResolderRF PSU Part

No

No

No

No

No

Yes

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

END

Check U200

Resolder U100or check Txcpo(R114)

No




7-19

14. DCS Receiver

U103 Pin7>= -65dBm Resolder CN100, C144

No

Yes

RX ONRF input : CH center freq

Amp : -50dBm

Check U103pin4 = L, pin8 = L

U103 pin1>= -65dBm

F102 pin1>= -70dBm

U100 pin6, 7, 8, 9>= 1V

U100pin38 >= -70dBmpin39 >= -70dBm


Resoder U103

Resolder F102, C116, L107

Resolder C115, C117, L106

Check U100pin10,22,28 >= 2.7V

pin20 >=4.0VCheck & Resolder

RF PSU Part

Check &ResolderU100, RF26MHz part,

R100, R101R116, R117, R119,

R121 >= 1V

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No No

No

END

Check U200



7-20

15. DCS Transmitter

U103 Pin7>= 20dBm Resolder CN100, C144

TX ON (0Level)

Check U103pin2,4 = L,

pin8 = H (2.68V)

U103 pin9>= 20dBm

U102 pin31>= 20dBm

OSC101 pin5>= 6dBm

U102 pin37>= 3dBm

Change or Resolder U100


Resolder L111, C147

Resolder R124, R125, R126

U103 pin6, 7, 8, 9>= 500mV

Yes

Check U102+VBATT,pin42,43

OK?Resolder or Change U102

or check PAM control signal

Check +VBATT

Check U100pin4 >= 4.0V

pin22,28 >= 2.7VCheck & Resolder

RF PSU Part

No

No

No

No

No

No

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

END

Check U200

Resolder U100or check Txcpo(R114)

Yes




7-21

Transmitter

DC

S_R

X

EG

SM

_TX

1

0

0

0

VC

2(VC

_PC

S)

1

00 0

0P

CS

_RX

0

VC

1(VC

_DC

S)

EG

SM

_RX

0

DC

S/P

CS

_TX

0 0

VC

3(VC

_EG

SM

)

0

1R

107R

106

C150

C110

C125

R126

C153

C123

VB

AT

C155

R105

C124

C133

R120

120R

108

2

VCC3DCS/PCS 2118

VCC3GSM

VCCOUT 19

VCCOUT 20

VR

AM

P45

13NC14

TX

EN

AB

LE41

VBATT 4243

VBATT

39

VCC1DCS/PCS

VC

C1G

SM

46

35

VCC2DCS/PCS

VCC2GSM

38

NC36

NC44

8

NCNC

9

10NCNC

11NC12NC

NC24NC25NC26NC27NC28

3

NC

NC29NC33

NC

48G

SM

850/900OU

T6

1

NC

NC15NC16NC17

NC2223

NC

57G

ND

GN

D30

GN

D32

GN

D3449

GN

D50

GN

D

GN

D51

GS

M850/900IN

40

DC

S/P

CS

IN37

DC

S/P

CS

OU

T31

GN

D4

GN

D52

GN

D53

GN

D54

47G

ND

1GS

M

GN

D

U102

BA

ND

SE

L

L113

R114

C118

C137

R113

C114

R101

C103

L111L

110

R130

AN

T102

C141

C107

C144

R117

13

G

5O

UT

1

OU

T2

1

SW

1

24

SW

2

VB1

812

VB2

VC

10

G3

G67

G

11 GG

9

14G

C126

OS

C101

C100

C117

L101

L100

R118

L112

R127

R124

R131

C128

R100

L103

C106

C101

F101

2 G

5

GIN

13

OU

T

OU

T4

C111

C113

AN

T101

C102

C120

C156

C152

R125

C138

R104

C131

C119

R128

R116

C135

C143

L105

R129

C112

L104

C109

F102

G25

G

1IN

OU

T3

OU

T4

G25

G

1IN

OU

T34

OU

T

L107

F100

C104

R112

OS

C100

2 GN

D

3OU

T

4VC

C

VC

ON1

C116

C108

C121

C122

C127

L109

C147

R102

L114

R121

C132

14

5G

SM

_RX

11G

SM

_TX

PC

S_R

X3

VC

148

VC

2V

C3

2

7

AN

TD

CS

_RX

1

DC

S/P

CS

_TX

9

G6G10

G12G13

G

U103

C145

C115

L106

C130

C146

C136

C149

R111

C148

R103

C151

C142

0R

123

R115

R110

F103

2

13

R119

C134

R109

TXON

5

TXRFI

1

L102

3437R

FG

ND

2

RFLOVCC 28

RFTUNE 2631

RF

VC

C

25

RFVCOVCC

23

RXON

SYNON 24

SYNVCC 22

TXCPO

34

TXCPVCC

NC

246

35P

CS

IA

PC

SIB

36

8

QA

QB

9

14R

EF

GN

D

RE

FIN

15 16R

EF

VC

C

21

RFCPO

RF

CP

VC

C20

RF

GN

D1

GND1

GN

D2

4243G

ND

3G

ND

444

27

GNDTUNE

GS

MIA

3233G

SM

IB

6

IA

IB

710

IFVCC

NC

145

CLK

FD

BX

13

CLK

OU

T11

DA

TA

17

DC

SIA

3839D

CS

IB

EN

19

2

EXTRES

29

FESW1

FESW2 30

FE

SW

ON

40

41

U100

12C

AF

CS

UP

18C

LK

C139

R132

C129

C105

CN

502

A2

3C

1G

4G

AN

TS

W_O

N

EG

SM

RX

ME

L_13M

RF

_BB

I_CLK

PC

SR

X

FE_SW2

DC

SR

X

VC

C_R

X_T

X

VC

C_C

P

VC

C_S

YN

TH

FE_SW1

RF

_EN

_SY

NT

H

RF

_BB

I_DA

TA

PA

M_D

CS

_TX

PO

N_T

X

VC

C_C

P

VC

C_S

YN

TH

PO

N_S

YN

TH

PO

N_R

X

VC

C_R

FV

CO

PA

M_E

GS

M_T

X

DC

SR

XE

GS

MR

X

PC

SR

X

PC

S_R

X

FE

_SW

2

DC

S_P

CS

TX

EG

SM

TX

PA

M_E

GS

M_T

X

AN

T

FE

_SW

1F

E_S

W2

VC

C_T

X_B

UR

ST

DC

S_T

XV

CO

_EN

GS

M_T

XV

CO

_EN

PA

M_T

XE

N

PA

M_D

CS

_TX

RA

MP

IRX

_TX

_P

IRX

_TX

_N

QR

X_T

X_P

QR

X_T

X_N

EG

SM

TX

DC

S_P

CS

TX

D_R

EF

_13M

AF

C



7-22

SAMSUNG Anycall - SGH-X640 - Altehandys.de

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Transcript of SAMSUNG Anycall - SGH-X640 - Altehandys.de