BiPAP® Synchrony Service & Technical Information

BBiPAP® iPAP® SynchronySynchrony

Service Service & Technical & Technical InformationInformation

BIPAP SYNCHRONY SERVICE & TECHNICAL INFORMATION

REVISION HISTORY

SECTION NAME (NO.) REV. # DATE DESCRIPTION

Copyright/Warranty (1032405) 00 Initial Revision

Revision History (1032450) 02 Initial Revision

Table of Contents (1032406) 01 Initial Revision

Introduction (1032407) 00 Initial Revision

Warnings & Cautions (1032408)

01 Initial Revision

Specifications & System Features (1032409)

00 Initial Revision

Theory of Operation (1032410)

00 Initial Revision

Setup (1032411) 00 Initial Revision

Maintenance (1032412) 00 Initial Revision

Troubleshooting & Diagnostics (1032443)

00 Initial Revision

Repair & Replacement (1032444)

00 Initial Revision

Repair Kits (1032445) 00 Initial Revision

Testing (1032447) 00 Initial Revision

Tools and Equipment (1032448)

00 Initial Revision

Schematics (1032449) 01 Initial Revision

REVISION HISTORY - PAGE 11032450, REV. 02


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1032450, REV. 02REVISION HISTORY - PAGE 2


© 2006, Respironics, Inc. and affiliates. All rights reserved.

COPYRIGHT/WARRANTY - PAGE 11032405, REV. 00


WARRANTYRespironics, Inc. warrants that the system shall be free from defects of workmanship and materialsand will perform in accordance with the product specifications for a period of two (2) years from thedate of sale by Respironics, Inc. to the dealer. Respironics warrants that the BiPAP Synchrony unitsserviced by Respironics will be free from defects in serviced materials for a period of one year and freefrom defects in workmanship for a period of 90 days from the time of service. Respironics accessoriesare warranted to be free of defects in materials and workmanship for a period of 90 days from the timeof purchase. If the product fails to perform in accordance with the product specifications, Respironics,Inc. will repair or replace – at its option – the defective material or part. Respironics, Inc. will paycustomary freight charges from Respironics, Inc. to the dealer location only. This warranty does notcover damage caused by accident, misuse, abuse, alteration, and other defects not related to materialor workmanship.

Respironics, Inc. disclaims all liability for economic loss, loss of profits, overhead, or consequentialdamages which may be claimed to arise from any sale or use of this product. Some states do not allowthe exclusion or limitation of incidental or consequential damages, so the above limitation or exclusionmay not apply to you.

This warranty is given in lieu of all other express warranties. In addition, any implied warranties –including any warranty of merchantability or fitness for the particular purpose – are limited to two years.Some states do not allow limitations on how long an implied warranty lasts, so the above limitation maynot apply to you. This warranty gives you specific legal rights, and you may also have other rightswhich vary from state to state.

To exercise your rights under this warranty, contact your local authorized Respironics, Inc. dealer orcontact Respironics, Inc. at:

Visit Respironics Home Page on the World Wide Web at:

www.respironics.com

1032405, REV. 00COPYRIGHT/WARRANTY - PAGE 2


INTRODUCTIONBIPAP SYNCHRONY VENTILATORY SUPPORT SYSTEM OVERVIEW ................................. 1SERVICE NOTICE .......................................................................................................... 2TECHNICAL SUPPORT STATEMENT ................................................................................ 2TRAINING ..................................................................................................................... 3

WARNINGS, CAUTIONS, AND NOTESCHAPTER OVERVIEW .................................................................................................... 1WARNINGS................................................................................................................... 1CAUTIONS .................................................................................................................... 2NOTES ......................................................................................................................... 2

SPECIFICATIONS, & SYSTEM FEATURESOVERVIEW ................................................................................................................... 1SPECIFICATIONS........................................................................................................... 2SYSTEM FEATURES ...................................................................................................... 4LEAK TOLERANCE........................................................................................................ 5SENSITIVITY ................................................................................................................. 5SYMBOLS FOR DEVICE AND POWER SUPPLY................................................................. 6

THEORY OF OPERATIONOVERVIEW ................................................................................................................... 1MAIN PRINTED CIRCUIT ASSEMBLY (PCA).................................................................... 15 VOLT SWITCHING POWER SUPPLY ............................................................................. 1+12V REGULATOR ....................................................................................................... 1-15V SWITCHING CIRCUIT............................................................................................. 1+3.3V REGULATOR ...................................................................................................... 1MICROCONTROLLER U2................................................................................................ 1IR COMMUNICATION LINK FOR THE INTEGRATED HUMIDIFIER ......................................... 28KBIT EEPROM .......................................................................................................... 24MBITS OF PROGRAM FLASH MEMORY......................................................................... 2128 KBYTES OF ASYNCHRONOUS SRAM...................................................................... 2WATCHDOG SUPERVISOR ............................................................................................. 2PRESSURE SENSORS.................................................................................................... 3BAROMETRIC PRESSURE SENSOR................................................................................. 3BI-DIRECTIONAL MASS FLOW SENSOR ......................................................................... 3ELECTRO-MECHANICAL ................................................................................................ 3SENSORLESS MOTOR CONTROLLER............................................................................... 3MOTOR SPEED CONTROL ............................................................................................. 3BRAKING AND STARTING CIRCUITRY ............................................................................. 3

TABLE OF CONTENTS - PAGE 11032406, REV. 01


SLEEVE VALVE ............................................................................................................. 4VALVE CONTROLLER .................................................................................................... 4SOFT KEY WITH PUSH BUTTONS ................................................................................... 4DISPLAY DRIVER AND LCD........................................................................................... 4POWER FAIL CIRCUITRY................................................................................................ 4

SYSTEM SETUP PROCEDURESOVERVIEW.................................................................................................................... 1SYSTEM SETUP............................................................................................................. 2SETTING UP THE BIPAP SYNCHRONY............................................................................ 3REQUIRED, ALTERNATE, AND OPTIONAL ACCESSORIES ............................................... 11CIRCUITS AND ACCESSORIES ...................................................................................... 12MASKS, EXHALATION PORTS, AND RELATED ACCESSORIES......................................... 12HUMIDIFIERS............................................................................................................... 12SOFTWARE ................................................................................................................. 13DC POWER ACCESSORIES.......................................................................................... 13ADDING A HUMIDIFIER................................................................................................. 13

ROUTINE MAINTENANCECHAPTER OVERVIEW .................................................................................................... 1CLEANING THE SYSTEM ................................................................................................ 1CLEANING/REPLACING THE INTAKE FILTER.................................................................... 1PREVENTIVE MAINTENANCE SCHEDULE ......................................................................... 2BIPAP SYNCHRONY SYSTEM PREVENTIVE MAINTENANCE SCHEDULE (FACTORY RECOMMENDED) ......................................................................................... 3

TROUBLESHOOTING AND DIAGNOSTICSCHAPTER OVERVIEW .................................................................................................... 1TROUBLESHOOTING FLOW CHART................................................................................. 2ALARM INTRODUCTION.................................................................................................. 3OVERVIEW OF ALARM BEHAVIOR .................................................................................. 4HIGH PRIORITY SOUNDS ............................................................................................... 4MEDIUM PRIORITY SOUND............................................................................................. 4LOW PRIORITY SOUND.................................................................................................. 4SILENCE PERIOD .......................................................................................................... 4ALARM LED BEHAVIOR ................................................................................................ 5RED ALARM LED ......................................................................................................... 5YELLOW ALARM LED ................................................................................................... 5DISPLAY BEHAVIOR ...................................................................................................... 5SYSTEM ALARMS.......................................................................................................... 5

1032406, REV. 01TABLE OF CONTENTS - PAGE 2


PATIENT ALARMS......................................................................................................... 7POWER ALARMS .......................................................................................................... 8TROUBLESHOOTING TABLE......................................................................................... 10BIPAP SYNCHRONY SYSTEM ERROR CODE RETRIEVAL .............................................. 15SYSTEM ERROR CODES LIST (PATIENT ACTION) ......................................................... 16BIPAP SYNCHRONY SYSTEM ERROR CODES (CORRECTIVE ACTION)........................... 20BIPAP SYNCHRONY SMARTCARD ERROR CODES....................................................... 25

REPAIR AND REPLACEMENTCHAPTER OVERVIEW .................................................................................................... 1WARNINGS AND CAUTIONS ........................................................................................... 2REPLACEMENT INSTRUCTIONS ...................................................................................... 2PROCEDURE................................................................................................................. 5PROCEDURE................................................................................................................. 7

REPAIR KITSCHAPTER OVERVIEW .................................................................................................... 1REPAIR KIT REFERENCE TABLE.................................................................................... 2TOP ENCLOSURE REPAIR KIT ....................................................................................... 3MAIN PRINTED CIRCUIT ASSEMBLY (PCA) REPAIR KIT ................................................. 4KEYPAD REPAIR KIT .................................................................................................... 5OUTLET-FLOW-TUBING REPAIR KIT .............................................................................. 6DIFFUSER ASSEMBLY REPAIR KIT................................................................................. 7VALVE ASSEMBLY REPAIR KIT ..................................................................................... 8 BLOWER ASSEMBLY REPAIR KIT ................................................................................. 9MUFFLER REPAIR KIT................................................................................................. 10BUZZER ASSEMBLY REPAIR KIT ................................................................................. 11BOTTOM ENCLOSURE REPAIR KIT .............................................................................. 12WARNING LABEL REPAIR KIT ..................................................................................... 13ULTRA FINE FILTER REPAIR KIT ................................................................................. 14POLLEN FILTER REPAIR KIT ....................................................................................... 15FILTER CAP REPAIR KIT............................................................................................. 1660 WATT POWER SUPPLY REPAIR KIT........................................................................ 17ALARM LABEL REPAIR KIT ......................................................................................... 18SLEEPLINK COMMUNICATION CABLE REPAIR KIT........................................................ 19SMARTCARD SEAL REPAIR KIT .................................................................................. 20TUBING REPAIR KIT ................................................................................................... 21

TABLE OF CONTENTS - PAGE 31032406, REV. 01


TESTINGTESTING PROCESS ....................................................................................................... 1BIPAP SYNCHRONY SYSTEM RUN-IN ............................................................................ 1PERFORMANCE VERIFICATION ....................................................................................... 1REAL-TIME CLOCK CALIBRATION .................................................................................. 2BIPAP SYNCHRONY CALIBRATION................................................................................ 7PRINTING OF THE FINAL TEST DATA SHEET................................................................. 19CURRENT DRAW TEST ................................................................................................ 20BIPAP SYNCHRONY CURRENT DRAW TEST DATA SHEET............................................ 21PERFORMANCE VERIFICATION DATA SHEET................................................................. 22

TOOLS AND EQUIPMENTSERVICE TOOLS AND SUPPLIES .................................................................................... 1ACCEPTABLE TEST EQUIPMENT .................................................................................... 2

SCHEMATICSSCHEMATICS STATEMENT ............................................................................................. 1

1032406, REV. 01TABLE OF CONTENTS - PAGE 4


INTRODUCTION

BIPAP SYNCHRONY VENTILATORY SUPPORT SYSTEM OVERVIEWThe BiPAP Synchrony, shown in Figure A, is a low-pressure, electronically driven ventilator systemwith electronic pressure control. The device’s pressure controls are adjusted to deliver pressuresupport for patient ventilatory assistance.

FIGURE A: BIPAP SYNCHRONY DEVICE

The BiPAP Synchrony is intended to augment patient breathing by supplying pressurized air through apatient circuit. It senses the patient’s breathing effort by monitoring airflow in the patient circuit andadjusts its output to assist in inhalation and exhalation. This assistance is provided by theadministration of two levels of positive pressure. During exhalation, pressure is variably positive ornear ambient. During inspiration, pressure is variably positive and always equal to or higher than theexpiratory level.

The BiPAP Synchrony responds reliably to patient flow rates that indicate movement to inhalation orexhalation, even in the presence of most normal leaks in the patient circuit. Automatic adjustment ofthis trigger threshold in the presence of leaks makes the system ideal for mask-applied ventilationassistance. The patient-controllable Rise Time and Bi-Flex features may enhance patient-ventilatorsynchrony and patient comfort.

The BiPAP Synchrony operates in the following modes: Continuous Positive Airway Pressure (CPAP),Spontaneous (S), Spontaneous/Timed (S/T), Timed (T), and Pressure Control (PC).

In the Continuous Positive Airway Pressure (CPAP) mode, the BiPAP Synchrony delivers continuouspressure support ventilation at one pressure level.

In the Spontaneous (S) mode, the BiPAP Synchrony delivers bi-level pressure support. The devicetriggers to Inspiratory Positive Airway Pressure (IPAP) in response to spontaneous inspiratory effortand cycles to Expiratory Positive Airway Pressure (EPAP) during exhalation. The level of pressuresupport delivered is determined by the difference between the IPAP and EPAP settings. TheSpontaneous/Timed (S/T) mode of the BiPAP Synchrony is similar to the S mode, except that it alsocan deliver a machine-triggered breath if the patient does not spontaneously breathe within a set time.

INTRODUCTION - PAGE 11032407, REV. 00


The S/T mode ensures that patients receive a minimum number of breaths per minute based on theRate setting. If the patient fails to initiate an inspiration within the interval determined by the Ratecontrol, the unit triggers a timed (or machine-triggered) breath resulting in a pressure-control(pressure-limited, time-cycled) breath at the set IPAP level. The rate of timed breaths is adjustable.The duration of each timed breath is controlled by an Inspiratory Time control.

The Timed mode provides mandatory pressure assist. All breaths are machine triggered and machinecycled. The patient breathing has no affect on this machine. The triggering is determined by theBreath Rate control. The cycle time is determined by the Inspiratory Control.

The PC mode is equivalent to the S/T mode except that all breaths are machine cycled and, therefore,have a fixed inspiratory time. This mode is a pressure limited, machine or patient triggered, timecycled mode. The patient may initiate a breath, but all breaths are pressure limited (IPAP) and time-cycled. The cycle time is determined by the Inspiratory Time control setting.

AVAPS is available in the S, S/T, Timed and PC modes. AVAPS provides dynamic IPAP control. TheIPAP pressure is dynamically controlled so that exhaled tidal volumes approach the Vte control value.AVAPS provides gradual pressure changes to compensate for the tidal volume error observed overseveral preceding breaths.

The BiPAP Synchrony provides the Bi-Flex feature in S mode. The Bi-Flex attribute adjusts therapy byinserting a small amount of pressure relief during the latter stages of inspiration and during activeexhalation (the beginning part of exhalation).

The device incorporates a user interface made up of a Ramp Button, Humidifier Button, Alarm ResetButton, Alarm Silence Button, Scroll Button, and Liquid Crystal Display (LCD). A pressure On/Offpush-button is located on the side of the unit.

SERVICE NOTICEThis service manual was prepared by Respironics primarily for use by technicians to service the BiPAPSynchrony Ventilatory Support System. The individuals using this manual to service the BiPAPSynchrony should have prior training or experience servicing ventilatory devices.

TECHNICAL SUPPORT STATEMENTRespironics is committed to customer satisfaction and may be contacted with any questions or forproduct support. For product assistance or replacement part ordering information, contact RespironicsCustomer Service.

US and Canada

Phone:1-800-345-6443

Fax:1-800-866-0245

Email: [email protected]

International

Phone:1-724-387-4000

Fax:1-724-387-5012


1032407, REV. 00INTRODUCTION - PAGE 2


TRAININGRespironics offers service training for BiPAP and CPAP systems. For more information, EmailRespironics at:

[email protected]


www.respironics.com

INTRODUCTION - PAGE 31032407, REV. 00


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1032407, REV. 00INTRODUCTION - PAGE 4


WARNINGS, CAUTIONS, AND NOTES

CHAPTER OVERVIEWWarnings, Cautions, and Notes are used throughout this manual to identify possible safety hazards,conditions that may result in equipment or property damage, and important information that must beconsidered when performing service and testing procedures on the BiPAP Synchrony.

Please read this section carefully before servicing the BiPAP Synchrony.

WARNINGS

WARNING

Warnings indicate the possibility of injury to the patient, operator, ortechnician.

CAUTION

Cautions indicate the possibility of damage to the device

NOTE

Notes are used to emphasize a characteristic or important consideration.

WARNINGS

• The service technician should read and understand this entire manual before servicing the BiPAP Synchrony. Ensure that all warnings, cau-tions, and notes cited in the BiPAP Synchrony Provider manual are read and understood prior to servicing this device.

• To assure the safety of the service technician and the specified per-formance of the device, Respironics recommends that only techni-cians having prior training or experience servicing ventilatory devices perform any repairs or adjustment to the BiPAP Synchrony.

• High voltages are present inside this device. To avoid electrical shock, disconnect the electrical supply before attempting any repairs on the device.

• DO NOT immerse this device into any fluids.

WARNINGS & CAUTIONS - PAGE 11032408, REV. 01


CAUTIONS

NOTES

CAUTIONS

• Electronic components used in this device are subject to damage from static electricity. Repairs made to this device must be performed only in an anti-static, Electro-static Discharge (ESD)-protected environment.

• Care should be taken to avoid exposure of the BiPAP Synchrony to tempera-tures at or near the extremes of those specified in Chapter 3. If exposure to such temperatures has occurred, the device should be allowed to return to room temperature before being turned on.

• Never place liquids on or near the BiPAP Synchrony.

• The information in this manual is provided for service personnel reference.

NOTES

• Additional Warnings, Cautions, and Notes are located throughout this man-ual.

• Refer to the BiPAP Synchrony User and Provider Manual for product use, additional Warnings, Cautions and Notes.

1032408, REV. 01WARNINGS & CAUTIONS - PAGE 2


SPECIFICATIONS, & SYSTEM FEATURES

OVERVIEWThis chapter describes the specifications and system features for the BiPAP Synchrony VentilatorySupport System.

SPECIFICATIONS & SYSTEM FEATURES - PAGE 11032409, REV. 00


SPECIFICATIONS

ENVIRONMENTAL

Operating Temperature 5 °C to 35 °C

Storage Temperature -20 °C to 60 °C

Humidity 15 - 95% non-condensing

Atmospheric Pressure 83 - 102 kPascals(Storage: 50 - 102 kPascals)

Elevation 0 - 5,600 ft. with automatic altitude adjustment

Noise Level No specification is given because various test instruments, test procedures, and unit operating conditions produce varying results.

FUSES

Fuses There are no replaceable fuses in this device.

ELECTRICAL

AC Voltage Source 90 - 264 VAC; 47/70 Hz*

DC Input Voltage 9.8-17.0 VDC**

AC Current Consumption 1.25 A maximum

DC Current Consumption 3.0 A maximum

Protection Against Electric Shock

Class II

Degree of Protection Against Electric Shock

Type BF Applied Part

Degree of Protection Against Harmful Ingress of Water

Device:Ordinary Equipment, IPX0External AC and External DC Power Supply:Drip Proof, IPX1

* When used with an external AC/DC power converter.

**When used with an external DC boost converter and > 10.5 VDC to start.

MODE OF OPERATION

Continuous

1032409, REV. 00SPECIFICATIONS & SYSTEM FEATURES - PAGE 2


FUNCTIONS

Modes Continuous Positive Airway Pressure (CPAP)Spontaneous (S)Timed (T)Spontaneous/Times (S/T)Pressure Control (PC)

PRESSURE

IPAP 4 to 30 cm H2O*

EPAP 4 to 25 cm H2O

CPAP 4 to 20 cm H2O

Vte Setpoint 200mL to 1500mL

Low MinVent Alarm 0.0 LPM to 99.0 LPM

Flex Setpoint 0 to 3

Breath Rate 0 to 30 BPM

Timed Inspiration 0.5 to 3.0 seconds

Ramp Duration 0 to 45 minutes

Rise Time** 1 to 6 (0.1 to 0.6 seconds)

* Limited to 25 cmH2O when using the Bi-Flex feature in S mode.

** The range of values correspond to tenths of seconds (e.g., a setting of 4 indicates a Rise Time of 0.4 seconds). When in BiFlex Mode, the unit shall always use a rise time of 3 regardless of this setpoint.

PHYSICAL

Dimensions 9.8”(L) x 6.6”(W) x 4.4”(H)

Weight Less than 7 lbs. without the humidifier

EMC NORMATIVE DOCUMENTS

This product is designed to conform to the following standards:

IEC 60601-1 Medical Electrical Equipment, Part 1 General Requirements for Safety and essential performance.



SYSTEM FEATURES

SYSTEM FEATURES

AC Power Connector AC power supply connection.

Air Outlet Port Flexible tubing/patient circuit connection.

DC Power Connector Optional DC power connection.

AC Power Indicator LED Display for AC power.

DC Power Indicator LED Display for DC power.

High Priority Alarm Indicator LED Display for High Priority Alarms. (RED)

Low/Medium Priority Alarm Indicator LED Display for Low/Medium Priority Alarms. (YELLOW)

Display Screen Liquid Crystal Display where all device settings appear.

Pressure On/Off Starts or stops the devices airflow.

Bi-Flex Feature Available in S Mode.

AVAPS Feature Available in S, S/T, and PC and T Modes.

Heat Controls the optional Heated Humidifier.

Ramp Lowers the airflow pressure allowing the patient to fall asleep more easily.

User Buttons Navigate the display screen.

Alarm Silence Button Temporarily silences the audible portion of the alarm.

Reset Acknowledges an alarm and resets the device for alarm detection.

Scroll Button Allows for the user to scroll through monitoring parameters on the display.

Filter Cap and Filters The pollen filter screens out normal household dust and pollens. This must be in place at all times when the BiPAP Synchrony is operating. An optional, ultra-fine filter is also included for more complete filtration of very fine particles. The filter cap can be positioned to direct the air flow away from your device.



RAMP FEATURE

BiPAP Synchrony is equipped with a linear ramp function. The ramp feature will reduce the pressureand then gradually increase (ramp) the pressure to the prescription pressure setting so patients canfall asleep more comfortably.

DIGITAL AUTO-TRAK SENSITIVITY

An important characteristic of the BiPAP Synchrony is its ability to recognize and compensate forunintentional leaks in the system and to automatically adjust its trigger and cycle algorithms tomaintain optimum performance in the presence of leaks. This feature is known as Digital Auto-TrakSensitivity. The following sections examine this function in detail by describing the leak tolerancefunction and sensitivity.

LEAK TOLERANCE

A microprocessor monitors the total flow of the patient circuit and calculates patient flow values. TheBiPAP Synchrony uses two leak estimation algorithms. A conservation of mass algorithm is used tocompute the average leak for a given pressure support relationship. This average leak is a highestimate during EPAP pressure and a low estimate during IPAP pressure.

A better leak estimate, enabled by the digital system, is the parabolic leak algorithm. Parabolic leak isproportional to the square of the patient pressure; therefore, the leak estimate is correlated to thechanging patient pressure. Both algorithms include unintentional circuit leak and are averaged overseveral breaths.

The total circuit flow is comprised of the circuit leak and the patient flow. The calculated patient flow isthe circuit flow minus the circuit leak. Patient flow is a primary input into the triggering and cyclingmechanisms.

SENSITIVITY

An essential feature of the BiPAP Synchrony while operating in the S and S/T modes is its ability toeffectively sense spontaneous breathing efforts, which causes the unit to trigger IPAP and cycle toEPAP. Because no preset sensitivity threshold can assure patient and machine synchrony withchanging breathing efforts and circuit leaks, the BiPAP Synchrony continuously tracks patientbreathing patterns and automatically adjusts sensitivity thresholds to ensure optimum sensitivity asbreathing patterns change or as circuit leaks change. The algorithms used to ensure optimumsensitivity are the Volume Trigger/Cycle, Shape Trigger, Flow Reversal and Spontaneous ExpiratoryThreshold (SET).

The shape trigger/cycle is another method used to trigger IPAP and/or cycle from IPAP to EPAP duringspontaneous breathing in the S and S/T modes. This method continuously tracks patient inspiratoryand expiratory flow and adjusts the spontaneous trigger and cycle thresholds for optimum sensitivity.The Shape Signal appears as a shadow image of the patient’s actual flow. The shape signal functionsas a sensitivity threshold at either inspiration or expiration. When the patient’s flow rate crosses theshape signal, the unit changes pressure levels. The shape signal is created by offsetting the signalfrom the actual patient flow by 15 lpm and delaying it for a 300 ms period. This intentional delaycauses the shape signal to be slightly behind the patient’s flow rate. A sudden change in patient flowwill cross the shape signal, causing the pressure level to change.

A second method used to cycle off IPAP during spontaneous breathing in the S and S/T modes iscalled Spontaneous Expiratory Threshold (SET). The SET rises in proportion to the inspiratory flowrate on each breath. When the SET and actual patient flow value are equal, the unit cycles to EPAP.



A maximum IPAP time of 3.0 seconds acts as a safety mechanism to limit the time spent at the IPAPlevel during spontaneous breathing in the S and S/T modes. Once the time limit is reached, the unitautomatically cycles off IPAP to the EPAP level.

As flow begins to decrease during IPAP, a flow reversal can occur due to a large leak around the maskor because the patient’s mouth is open. When the BiPAP Synchrony unit senses this flow reversal, theunit automatically cycles to the EPAP level.

SYMBOLS FOR DEVICE AND POWER SUPPLY

SYMBOLS AND MEANINGS

Attention, consult accompanying documents

DC Power

Pressure On/Off

Type BF Applied Part

Class II (Double Insulated)

European CE Declaration of Conformity

Canadian/US Certification



SYMBOLS AND MEANINGS CONT.

Electrostatic Discharge

Ordinary Equipment

UL Recognized for Canada and the United States

TUV Safety Standard Compliance

No User Serviceable Parts

WEEE/RoHS Symbol



THEORY OF OPERATION

OVERVIEWThis chapter describes the operation of the BiPAP Synchrony Printed Circuit Assembly (PCA).Operation of the various circuits on the board are explained.

MAIN PRINTED CIRCUIT ASSEMBLY (PCA)The Main PCA is the computer control center of the BiPAP Synchrony. A microcontroller reads andwrites to various I/O devices such as the control pad, LCD, memory chips, pressure and flow sensorsand motor control circuitry. The microcontroller will make appropriate adjustments to the valve andblower using this information to deliver the desired therapy to the patient.

POWER DISTRIBUTION

There are two 3 pin power din connectors on the back of the BiPAP Synchrony. They will accept thebulk voltage on pin 1 from either an external AC/DC 60W Respironics’ power supply or an external DC/DC Respironics’ power supply with the mating connector. Pin 2 is the return on both connectors. Pin3 is a multi-purpose pin. It is floating when the AC/DC converter is connected. It is connected to thebattery voltage to read on internal ADC channel 0. When the AC/DC converter is used, the bulkvoltage will range from 24 to 28 VDC (read on internal ADC channel 4). When the DC/DC converter isused, the voltage will be less than 23 VDC.

5 VOLT SWITCHING POWER SUPPLY

5 Volts is needed throughout the Main PCA for logic circuits. U16 is a simple switcher which producesa 5V output from the bulk voltage. The input cap, C45, is oversized and serves both as an input filterfor the bulk voltage at the input connector and the high frequency input cap for this switcher. Theoutput cap, C79, maintains the output ripple voltage below 50 mV. L2 allows 2A output currentscomfortably due to its size.

+12V REGULATOR

U18 produces the 12 Volts needed to bias the flow sensor and it is also used as the positive rail for theanalog circuitry and the operational amplifiers of the valve controller.

-15V SWITCHING CIRCUIT

A negative power supply is created by using an output from the microcontroller switching currentthrough resistor R186 and capacitor C80. This negative voltage is used as the negative rail for theanalog circuitry and valve controller operational amplifiers.

+3.3V REGULATOR

The core and I/O of the microcontroller are driven by 3.3 volts. Voltage regulator U12 creates thisvoltage from the 5V power supply.

DIGITAL CIRCUITRY

MICROCONTROLLER U2

The microcontroller, U2, has a high-performance 32 bit RISC architecture. The 176 pin devicecontains an external address and data bus interface, an eight level external interrupt controller, 58programmable I/O lines, six 16 bit timers, 3 UARTs, a 3 wire SPI interface, an eight channel 10 bitADC, a two channel 10 bit DAC, an on chip oscillator and PLL for multiplication, a real time clock, a

THEORY OF OPERATION - PAGE 11032410, REV. 00


JTAG interface for boundry scans and a power management controller for sleep and wakeupoperations.

The core and I/O ports of the microcontroller use 3.3 V connected at several pins shown on theschematic.

There is an eight channel successive approximation Analog to Digital Converter (ADC) on thismicrocontroller. Channels AD0 through AD7 are all in use.

When power is initially supplied to the chip, the main oscillator is off until the PLL is enabled. Until thisis done, the chip is clocked off of the 32.768 kHz crystal, Y2. The main oscillator takes the output fromfundamental crystal, Y1 and is capable of multiplying this frequency up to 33 MHz.

The computer uses the watch crystal (Y2) and a lithium battery (B1) to maintain an internal clock thatconsumes very little power. The lithium coin cell battery (B1) provides a minimum of 17 years ofbattery life for the Main PCA.

The main board uses both channels of the two channel 10 bit DAC to control motor speed and set theoutput pressure controlled by the valve sleeve. The range of the output voltage is 0 to 3.3V. Themotor speed command is a calibrated non-linear relationship between RPM and DAC counts.

This device features a Serial Peripheral Interface (SPI) that communicates with external devices ineither master or slave mode. Two external devices on the board use this type of communication, theEEPROM (U1) and the ADC (U11). The microcontroller provides three universal sychronous/asynchronous receiver/transmitters. The zero transmitter, TXD0, is used for communication with thehumidifier. TXD1 and RXD1 are used for two way communications with a PC via the SleepLink card orto communicate with an external smart modem.

IR COMMUNICATION LINK FOR THE INTEGRATED HUMIDIFIER

The BiPAP Synchrony communicates serially via an infrared LED with the integrated humidifier thatcradles the enclosure. The LED (CR3) transmits 2 wire serial commands to an IR detector inside thehumidifier to turn on, turn off and adjust the water temperature in the humidifier.

8KBIT EEPROM

Eight thousand bits of memory are provided on this board for the storage of therapy parameters in U1.

4MBITS OF PROGRAM FLASH MEMORY

IC, U4 contains 512 kbytes of non-volatile Flash memory that is programmed and operated with 3.3V.This chip contains the application software.

128 KBYTES OF ASYNCHRONOUS SRAM

U5 has 128 kbytes of static ram which allows for the freedom and complexity of the application code.This chip is designed for 3V operation.

WATCHDOG SUPERVISOR

An external supervisory chip, U3, monitors the 3.3 Volts. When the voltage approaches 2.93 V thechip will protect the Flash Chip by resetting the processor before the voltage reaches a level too low forthe Flash and also shuts down the processor while the core voltage is dropping.

1032410, REV. 00THEORY OF OPERATION - PAGE 2


ANALOG DEVICES

PRESSURE SENSORS

The main control board uses two sensors to monitor pressure amplitudes, MT4 or MT5 and MT3 orMT1. MT4 or MT5 is connected to the outlet pressure and MT3 or MT1 is connected at the blower.(Type of sensor used on the PCA will determine the MT locations used.)

BAROMETRIC PRESSURE SENSOR

The BiPAP Synchrony uses a 15psia pressure sensor. The sensor, MT6, is used to provide altitudecompensation for volumetric flow calculations. It is a 0 to 15 psia sensor with temperaturecompensation and calibrated zero and span.

BI-DIRECTIONAL MASS FLOW SENSOR

The main board uses mass flow sensor (MT2). The sensor uses the thermal properties of air to qualifythe mass of a gas passing through the element. The sensing elements are seated on a heaterelement and are normally at some temperature above the ambient. As flow passes over the firstelement, which can be called the upstream element, it cools this element and at the same time picksup heat. Between the two elements the gas picks up more heat as it traverses the heater and finallyadds its newly acquired heat to the downstream element. The two elements are thermistors that whenplaced in a Wheat-stone bridge configuration, produce an output voltage proportional to the mass ofthe airflow.

ELECTRO-MECHANICAL

A brushless DC motor is used in the BiPAP Synchrony to spin the impeller used to generate thepressure for therapy. The BiPAP Synchrony uses a valve to control the patient pressure but the blowerprovides a deadhead pressure above the maximum pressure setpoint.

SENSORLESS MOTOR CONTROLLER

The motor control chip (U9) runs off of the regulated +12 Volt power. When a motor speed commandvoltage is present and the BRAKE signal goes from high to low, the unit aligns the motor, ramps themotor in open loop control mode and then senses crossing from the phase windings to commutate themotor at the command speed.

MOTOR SPEED CONTROL

The DAC command from the microcontroller is a 0 to 3.3 volt signal and the signal is doubled by theOp-amp (U7). It is filtered by R85 and C39 to prevent noise on the signal. The speed command isvirtually linear up until the command voltage reaches 6 volts and then it begins to flatten (less speedfor changing voltage). The range of speed commands is from zero to the 6.9V reference voltage.

BRAKING AND STARTING CIRCUITRY

The BRAKE output from the microcontroller commands both the BRAKE and the reset (CRST) pins.When the brake is released, Q10 and Q11 are both switched off. When these two pins are left floating,the chip enters the reset state by turning on two of the high side drivers (Q8 and Q21) and one of thelow side drivers (Q9). This has the effect of aligning the motor 30 degrees before the first commutationstate. While this is happening, the unit is switching in and out of current limit and the capacitor C40 ischarging up by a small output current from the CRST pin and the additional current supplied by +12Volts through R89. When the voltage on C40 exceeds 1.5 Volts, the chip enters the ramp mode. Inramp mode, the chip begins the commutation sequence and increases the rate of the sequence whilecharging both the ramp capacitor, and the PLL filter components. When the ramp capacitor, C38reaches 1.5 Volts, the motor has enough speed for sensing and closed loop control.

THEORY OF OPERATION - PAGE 31032410, REV. 00


SLEEVE VALVE

The sleeve valve of the BiPAP Synchrony controls with good response time and stability. The valve isa linear DC motor with a slitted sleeve sliding over ports in the stationary barrel. One of the ports ispneumatically connected to the blower pressure and the other is an exhaust outlet. There is always anominal flow through the annulas between the two concentric parts that provides additional stabilityand an air bearing. The sleeve is wound with copper wire and a magnet is attached to the innerdiameter of the barrel to provide a perpendicular bi-directional force.

VALVE CONTROLLER

The command is a voltage generated from the microcontroller DAC channel 1. When a pressure isrequested, the voltage generated from the DAC is multiplied by 1.499 by the amp, U23 with R146 andR147. MT4 or MT3 produces a pressure feedback signal through an amplifier U28. This signal issubtracted from the command pressure with U22A and the difference or error signal U22 pin 1 is theinput to the sleeve controller. The output of the controller network is delivered to the valve driver/amplifier U24. U24 takes a 5V analog input signal and drives a voltage out that can swing from -5V to5V across the valve coil. 2.5V corresponds to zero voltage and current.

USER INTERFACE

SOFT KEY WITH PUSH BUTTONS

The board has seven pills to detect keypresses. The pull-up resistors, R20, R22, R23, R24, R41,R129, and R130 are used for this circuit. The BiPAP Synchrony has a Scroll key that allows the userto scroll through different measured parameters. The pullup resistor for the Scroll key is R41. Fourwhite LED’s CR1, CR2, CR10, and CR11 are illuminated by switching Q1. All four are turned on andoff together.

DISPLAY DRIVER AND LCD

The backlighting for the display is switched on through Q27 and the current is set by R227. Alldisplays are driven by display drives U6 and U15. Both chips run off of 3.3 Volts. The clock output canbe found on pin 4.

POWER FAIL CIRCUITRY

When power is removed from the unit, but the on/off button remains in the on position, the unit willenter power fail mode. Voltage is held up by C57. This voltage is boosted and regulated by U15 toprovide a fixed loudness. As the capacitor drains, Q26 and Q25 with the surrounding circuitry providean astable vibrator to provide a 2 second on / 2 second off alarm. The red LED remains oncontinuously. Power fail on the board is detected by the existence or lack of +5 Volts.

1032410, REV. 00THEORY OF OPERATION - PAGE 4


SYSTEM SETUP PROCEDURES

OVERVIEWThis section provides an overview of the system setup, including detailed instructions on how toaccess the Therapy settings.

FIGURE A: BIPAP SYNCHRONY DISPLAY

NOTE

This section provides directions for accessing the Therapy settings. To preventpatients from tampering with these settings, the directions to access the therapysettings should not be revealed to the patient.

CAUTION

If the BiPAP Synchrony has been exposed to either very hot or very coldtemperatures, allow it to adjust to room temperature (approximately two hours)before beginning startup.

SETUP - PAGE 11032411, REV. 00


SYSTEM SETUPPlug the external power supply into the connector in the back of the BiPAP Synchrony. The BiPAPSynchrony will sound a confirmation alarm, and the control panel buttons light up. The first screen toappear is the Self Test screen

The next screen that will appear will display the software version of the device

The Blower Hours Screen will then appear, which displays the Blower Hours Time Meter:

The next screen that will appear will be the Standby Screen:

The Standby Screen appears when the BiPAP Synchrony is in the Standby state. Pressing thePressure On/Off button in puts the BiPAP Synchrony in the Operate state. The Monitoring Screen willthen appear:

Both the Monitoring and the Standby screens display the Patient, Apnea, and Light icons if thesefeatures are enabled. Likewise, the Card icon displays if a SmartCard is inserted, and the Setup icon

FLEX

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1032411, REV. 00SETUP - PAGE 2


displays if the access level is set to Provider mode. The monitoring screen also displays the actualmeasured pressure and the Flex icon if Flex is enabled.

When in the Standby or Monitoring screens, you can modify the humidifier setting by pressing andholding the Heat button until the following screen appears:

You can increase or decrease the humidifier setting from 1 to 5 in increments of 1. The settingchanges immediately as you adjust it.

PROVIDER MODE

There are two ways to access Provider mode:1. When the access level parameter is set to 1, the BiPAP Synchrony will be in Provider

mode when power is supplied to the unit. The only way to exit this mode is to change the access level parameter to 0.

2. Simultaneously hold down the right user button and the alarm silence button for approxi-mately 2 seconds while supplying power to the unit until the device beeps. Pressing the alarm silence button at any time will exit you from the Provider mode.

SETTING UP THE BIPAP SYNCHRONY1. Enter the Provider Mode. The first screen is the Mode setting screen. To change the

selection, press the Heat or Ramp button until the correct setting appears. Available modes are PC, CPAP, S, S/T, and T. Press the right user button once the desired setting is reached.

NOTE

In order to scroll through the different menus, you must use the left and right userbuttons along with the ramp and heat buttons.

S/T

PC



2. If CPAP is chosen, the CPAP setting screen will appear next.

Increase or decrease the CPAP pressure by pressing the Heat and Ramp buttons until thedesired pressure appears. You can adjust the pressure from 4 to 20 cm H2O in 1 cm H2Oincrements. Press the right user button to move to the next screen. If CPAP is the chosenmode, proceed to Step 10 for next screen.

If PC, S, S/T, or T mode is chosen, the AVAPS screen will appear next.

Turn the AVAPS on or off by pressing the Heat or Ramp buttons until the correct numberappears. A One (1) on the display screen indicates that AVAPS is enabled and a Zero (0)indicates that the AVAPS feature is disabled. Press the right user button to move to thenext screen. If AVAPS is not chosen proceed to Step 6.

3. The Target Tidal Volume screen will appear next.

Increase or decrease the Target VT pressure by pressing the Heat or Ramp buttons untilthe correct pressure appears. You can adjust Target VT from 200 mL to 1500mL inincrements of 10mL. Press the right user button to move to the next screen.

EPAP

cmH2O

CPAP

PC AVAPS

ml

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VT



4. The IPAP max screen will appear next.

Increase or decrease the IPAP max pressure by pressing the Heat or Ramp buttons untilthe correct pressure appears. You can adjust the pressure from 4 to 30 cm H2O in 1 cmH2O increments. The IPAP max pressure setpoint cannot be set lower than the IPAP minpressure setting. Press the right user button to move to the next screen.

5. The IPAP min screen will appear next.

Increase or decrease the IPAP min pressure by pressing the Heat or Ramp buttons untilthe correct pressure appears. You can adjust the pressure from 4 to 30 cm H2O in 1 cmH2O increments. The IPAP min pressure setpoint cannot be set lower than the EPAPsetting. Press the right user button to move to the next screen.

6. If AVAPS is not enabled the IPAP screen will appear next.

Increase or decrease the IPAP pressure by pressing the Heat or Ramp buttons until thecorrect pressure appears. You can adjust the pressure from 4 to 30 cm H2O in 1 cm H2Oincrements. The IPAP pressure setpoint cannot be set lower than the EPAP setting.Press the right user button to move to the next screen.

cmH2O

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IPAP

cmH2O

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IPAP

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IPAP



7. The EPAP screen will appear next.

Increase or decrease the EPAP pressure by pressing the Heat or Ramp buttons until thecorrect pressure appears. You can adjust the pressure from 4 to 25 cm H2O in 1 cm H2Oincrements. The EPAP pressure cannot be set higher than the IPAP setting. If the EPAPis set to less than the ramp start pressure, the ramp start pressure automatically sets tothe EPAP. Press the right user button to move to the next screen.

8. If the unit is set to PC, S/T, or T mode, the next screen will be the Breath Rate Mode. (For CPAP, proceed to step 11 and S mode, proceed to step 10.)

Increase or decrease the breath rate by pressing the Heat or Ramp buttons until thecorrect setting appears. You can adjust the breath rate from 0 to 30 in 1 BPM increments.Press the right user button to move to the next screen.

9. The next screen will be the Inspiratory Time Setting screen. (For CPAP, proceed to step 11 and S mode, proceed to step 10.)

Increase or decrease the inspiratory time by pressing the Heat and Ramp buttons until thecorrect setting is reached. You can adjust the inspiratory time from 0.5 to 3 seconds in 0.1second increments. Press the right user button to move to the next screen.

NOTE:

The inspiratory time and breath rate controls are linked so the inspiratory timenever exceeds the expiratory time. If the breath rate or inspiratory time are set tovalues that would cause the IE ratio to exceed 1:1, the inspiratory time isautomatically reduced to maintain a IE ratio of 1:1.

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10. When in S mode the next screen will be the Flex Setting screen. (All other modes should proceed to Step 11.)

This screen allows you to adjust the level of air pressure relief that the patient feels whenhe or she exhales during therapy. To change the selection, press the Heat or Rampbuttons until the correct setting appears. The Flex set point is adjustable from 0-3 inincrements of 1. Press the right user button to move to the next screen.

11. The next screen is the Ramp Length Setting. This allows you to change the ramp time.

To change the ramp time, press the Heat and Ramp buttons until the correct time appears.The setting increases or decreases from 0 to 45 minutes in 5 minute increments. If you donot want to ramp, set the time to zero. Press the right user button to move to the nextscreen.

12. The next screen is the ramp setting pressure. This screen will only display if the ramp length setting is greater than zero.

To change the ramp setting pressure, press the Heat and Ramp buttons until the correctpressure appears. The setting increases or decreases in 1.0 cmH2O increments. Theuser can adjust the setting from 4 cmH2O to the EPAP/CPAP pressure setting. Press theright user button to move to the next screen.

NOTE

The Flex Setting is not available if the IPAP at 26 cm H2O or higher.

FLEX

S

PC

PC

cmH2O



13. The Rise Time is the next screen that will appear. In S mode, this screen will only display if the Flex setting is equal to zero.

Rise Time is the time it takes for the BiPAP Synchrony to change from EPAP to IPAP.This screen allows you to adjust the rise time so you can find the most comfortablesetting for the patient. To change the rise time setting, press the Heat and Rampbuttons until you find the right setting. The rise time can be set from 1 to 6. The risetime of 1 to 6 corresponds to tenths of a second. When in Bi-Flex mode, the BiPAPSynchrony will use a rise time of 3 regardless of the setpoint. Press the right user buttonto move to the next screen.

14. The next screen is the Apnea Alarm Setting. This screen will allow you to enable or dis-able the audible alert (a beeping sound) when an apnea is detected.

Change the apnea setting by pressing the Heat and Ramp buttons until the desired settingis reached. You can increase the time from 0 to 30 seconds in 10 second increments.

• 0 will disable the apnea alarm.

• 10 means that the alarm sounds if the time between spontaneous breaths exceeds 10 seconds.



Press the right user button to move to the next screen.

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15. The next screen is the Patient Disconnect Alarm Setting.

This setting enables or disables the audible alert (a beeping sound) when a large,continuous air leak (such as mask removal) has been detected in the circuit.

To change the patient disconnect alarm setting, press the Heat and Ramp buttons until thecorrect setting appears. You can increase or decrease the setting between 0, 15, and 60seconds.

• 0 disables the patient disconnect alarm.

• 15 means that the alarm sounds after the patient has been disconnected for 15 sec-onds.

• 60 means that the alarm sounds after the patient has been disconnected for one minute.


16. The Next Screen is the Low Minute Ventilation Alarm Setpoint.

This setting enables or disables the audible alert (a beeping sound) when a low minuteventilation event is detected.

To change the low minute ventilation alarm setting, press the Heat and Ramp buttons untilthe correct setting appears. You can increase or decrease the setting from 0 to 99 LPM inincrements of 1 LPM.


s

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17. When in PC, S, S/T, and T mode and AVAPS is enabled, the next screen to appear is the Low Tidal Volume Alarm Setpoint. (For CPAP mode proceed to step 18.)

This screen turns on/off the Low Vte alarm. A 1 on the display window turns the alarm onand a zero indicates that the alarm is off. This alarm will sound when the measured tidalvolume is less than 90% of the target tidal volume setpoint.

18. The Reset Therapy Meter Setting screen is the next screen that will appear.

This screen displays the number of hours that the BiPAP Synchrony delivered therapy tothe patient. The decimal digit displays with a 0.1 hour resolution if the therapy time is lessthan 1000 hours. Otherwise, the decimal digit does not display so values between 1000and 19999 hours can display.

To erase the totals and go back to zero, press and hold the Ramp or Heat buttons. TheErase Hours icon displays on the screen. Hold the button down until the time changes tozero and the icon disappears. Press the right user button to move to the next screen.

19. The next screen is the LED Backlight Setting Screen.

The LED Backlight Setting screen allows you to have the control pad lights behind thebuttons on or off while the airflow is turned on and the unit is in the Operate state. Tochange the LED backlight setting, press the Heat and Ramp button until the correct settingappears. 1 means the light is on, while 0 means the light is off. Press the right user buttonto move to the next screen.

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1032411, REV. 00SETUP - PAGE 10


20. The next and final screen is the Access Level Setting screen.

This screen allows you to select Provider mode or User mode access. Press the Heat orRamp buttons to select the appropriate access level. 0 indicates that the BiPAPSynchrony is in User mode, and 1 indicates that the unit is in Provider mode.

The Provider mode settings are complete. Press the Alarm Silence button to exit thesettings menu or continue pressing the right and left user buttons to navigate the Providermode screens.

REQUIRED, ALTERNATE, AND OPTIONAL ACCESSORIESThis section addresses the required, alternate, and optional circuit accessories that can be used withthe BiPAP Synchrony. For additional information, refer to the literature supplied with the accessory

WARNING

The BiPAP Synchrony requires an intentional leak port, either built into the mask oron a separate exhalation device (e.g., Whisper Swivel II, Disposable ExhalationValve) to remove exhaled air from the circuit. Therefore, specific masks andcircuits using an intentional leak port are required for normal operation. Thepressurized air from the BiPAP Synchrony causes a continuous flow of air toexhaust from the leak port to flush the exhaled air from the circuit. The BiPAPSynchrony should be turned on and the intentional leak port should be checkedbefore using the device.

WARNING

At low CPAP and bi-level pressures, the air flow through the exhalation ports maynot be enough to clear all of the exhaled gas (CO2) from the mask. Patients maybreathe in some of the air that they exhaled. DO NOT block or try to seal theexhalation ports in the circuit.

PC

SETUP - PAGE 111032411, REV. 00


CIRCUIT CONFIGURATIONS

The BiPAP Synchrony is intended for use with Respironics-approved patient circuits. Typicalcomponents are:

• Bacteria Filter (Optional)

• 22 mm reusable circuit tubing

• Exhalation Device

• Respironics Patient Interface (e.g., mask)

• Respironics Pressure Valve (RI p/n 302418, required), if using supplemental oxygen

• Humidifier (Optional)

Additional accessories may be added to the circuit to meet specific needs.

CIRCUITS AND ACCESSORIESReusable or Disposable Circuit

• Reusable smooth inner lumen circuit tubing and exhalation port

• Disposable smooth inner lumen circuit tubing and exhalation portCircuit Accessories

• 6” disposable circuit tubing



• O2 enrichment attachment

• Bacteria FilterBiPAP Synchrony Accessories

• DC/DC Power Adapter

• Respironics Communication Cable

• Remote Alarm

• Respironics Portable Battery Pack (RI p/n 1028869)

MASKS, EXHALATION PORTS, AND RELATED ACCESSORIESMasks

• Respironics mask with built-in exhalation port

• Respironics mask with separate exhalation deviceAccessories

• Disposable Headgear

• Reusable Headgear

• Chin Strap

HUMIDIFIERS

• Respironics REMstar Heated Humidifier

• Respironics Pass-over Humidifier

• Respironics H2 Heated Humidifier

1032411, REV. 00SETUP - PAGE 12


SOFTWARE

• Respironics Encore Pro Data Management software for reading compliance data.

DC POWER ACCESSORIES

The BiPAP Synchrony can be used in a stationary recreational vehicle, boat, or motor home whenpowered by the DC/DC power adapter.

The Respironics DC/DC power adapter and cord enables the BiPAP Synchrony to be operated from a12 VDC free-standing battery, or a portable battery pack from Respironics (RI p/n 1028869).

ADDING A HUMIDIFIER

When using a humidifier, always disconnect the humidifier tubing from the BiPAP Synchrony systemwhen it is turned off. DO NOT use a room humidifier within 6 ft. of the BiPAP Synchrony. Moisture canbuild up in the system and cause damage. Follow the instructions included with the humidifier.

.

CAUTIONS

• Only use the Respironics DC Power Accessories. Use of any other system may cause damage to the BiPAP Synchrony.

• DC Power is not intended to be used as battery back-up. DO NOT connect the DC Power while the BiPAP Synchrony is operating on AC Power. System dam-age may occur.

SETUP - PAGE 131032411, REV. 00



1032411, REV. 00SETUP - PAGE 14


ROUTINE MAINTENANCE

CHAPTER OVERVIEWThis chapter provides guidelines and illustrates the cleaning and maintenance procedures for theBiPAP Synchrony system.

CLEANING THE SYSTEM

Wipe the outside of the device with a cloth slightly dampened with water and a mild detergent. Let thedevice dry before reconnecting the electrical supply.

CLEANING/REPLACING THE INTAKE FILTERThe gray pollen filter is a reusable filter that screens out pollens and some household dust. This filtershould be cleaned at least once every two weeks under normal usage, or as required, and replacedwith a new one every six months. One additional pollen filter is included with the system. The pollenfilter must be in place at all times when the unit is operating.

REMOVING, CLEANING, AND REPLACING THE FILTER1. With the airflow turned off, disconnect the AC power cord from the back of the unit.2. Remove the filter cap by gently lifting up on the bottom of the filter cap, then pull it away

from the back of the device.

WARNING

To avoid electrical shock, disconnect the electrical supply before attempting toclean the BiPAP Synchrony. DO NOT immerse the device in water or allow anyliquid to enter the cabinet or the filter intake.

CAUTION

Failure to replace a dirty filter may cause the device to operate at higher thannormal temperatures and damage the device.

ROUTINE MAINTENANCE - PAGE 11032412, REV. 00


FIGURE A BIPAP SYNCHRONY SYSTEM WITH FILTERS AND CAP

3. Remove the pollen filter by gently pulling the edges of the filter. Rinse the filter in a steady stream of running water. Squeeze out the water, and repeat. Allow the pollen filter to air dry for 8 to 12 hours, or in a clothes dryer on low heat for 15 to 20 minutes.

4. If using the optional ultra-fine filter, place it into the filter area in the back of the BiPAP Syn-chrony. Then place the pollen filter in line with the ultra-fine filter. Place the filter cap onto the back of the unit.

PREVENTIVE MAINTENANCE SCHEDULEThe following Preventive Maintenance Schedule lists the items that must be inspected or testedperiodically, or after service is performed. Use the Preventive Maintenance Schedule to record thedates on which the maintenance items are performed.

The Preventive Maintenance Schedule may be copied for each device serviced.

CAUTIONS

The pollen filter must be completely dry before use. Never place a wet filter into the device.Respironics recommends that you clean the filter in the morning and alternate using the twopollen filters provided with the system to ensure enough drying time for the cleaned filter.

DO NOT place both pollen filters into the device at the same time. One pollen filter and oneultra-fine filter or one pollen filter may be used.

1032412, REV. 00ROUTINE MAINTENANCE - PAGE 2


BIPAP SYNCHRONY SYSTEM PREVENTIVE MAINTENANCE SCHEDULE (FACTORY RECOMMENDED)

Model Number:________________________________________

Serial Number:________________________________________

Date:_____/_____/_____

Technicians Name:____________________________________

Maintenance Item Verification Reference Service Invoice Date

Record Blower Hours

Displayed on LCD Screen As Desired

Clean/Replace Pollen Filters

Routine Maintenance Section Clean every two weeks, or as required; Change every six months

Perform Testing Process

Testing Section After service is performed

Cleaning Routine Maintenance Section As required



TROUBLESHOOTING AND DIAGNOSTICS

CHAPTER OVERVIEW

This section contains information necessary to troubleshoot and diagnose problems with the BiPAPSynchrony. It provides a summary of common system problems as well as a flow chart and table tosimplify the troubleshooting process. The error code chart lists all error codes, the associatedproblem, and suggested corrective action to be taken.

WARNING

Disconnect the electrical supply before repairing the device.

CAUTION

Electrical components used in this device are subject to damage by staticelectricity. Use the proper static discharge equipment and grounding precautionswhen servicing the equipment. Service only in an ESD-protected environment.

TROUBLESHOOTING & DIAGNOSTICS - PAGE 11032443, REV. 00


TROUBLESHOOTING FLOW CHART

Problem Reported

Attempt to Verify Problem by:• Visual Inspection

• Operate Unit & Observe Behavior

• Perform a specific test

• Use Manometer to Verify Pressure

Follow Troubleshooting Table

Substitute Known Good Parts (if available)

Perform System Final Test

Repair per Procedures in Repair &

Replacement Section

Run Unit for Minimum of one hour (two if the blower was replaced)

Perform System Final Test.

1032443, REV. 00TROUBLESHOOTING & DIAGNOSTICS - PAGE 2


ALARM INTRODUCTIONThis section describes the BiPAP Synchrony alarms, how to set them, and what corrective actions totake for the alarm conditions.

The BiPAP Synchrony provides three alarm levels: high, medium, and low priority.

High Priority: These alarms require immediate operator response. The alarm signal consists of a red LED and a high priority sound. The display has the message ALARM at the top of the screen.

Medium Priority: These alarms require prompt operator response. The alarm signal consists of a yellow LED and a medium priority sound. The display has the message ALARM at the top of the screen.

Low Priority: These alarms require operator awareness. The alarm signal consists of a yellow LED and a low priority sound. The display has the message ALARM at the top of the screen.

FIGURE A: BIPAP SYNCHRONY ALARM LEDS AND BUTTONS



OVERVIEW OF ALARM BEHAVIORAlarm conditions are signalled by the BiPAP Synchrony in three ways: sound, an LED, and a displaymessage. Each signal type behaves differently depending on the type of alarm.

ALARM SOUND BEHAVIOR

HIGH PRIORITY SOUNDS

The BiPAP Synchrony has two possible high priority sounds.• High Priority - The sound repeats a pattern of three beeps followed by a pause and then two

more beeps until the Silence or Reset button is pressed. The silence period is one minute. This pattern is indicated as ••• ••

• Loss of Power - The sound repeats a pattern of one beep followed by a two second pause periodically without user intervention. The Pressure On/Off button silences this alarm. The Silence and Reset buttons and the LED control panel backlight do not apply to this alarm. This pattern is indicated as:

MEDIUM PRIORITY SOUND

The medium priority sound repeats a pattern of three beeps every 20 seconds until the Silence orReset button is pressed. The silence period is one minute. This pattern is indicated as •••

LOW PRIORITY SOUND

The low priority sound repeats a pattern of two beeps every 30 seconds until the Silence or Resetbutton is pressed. The audible alarm will not reoccur. This pattern is indicated as ••

SILENCE PERIOD

The silence period for all applicable alarms is one minute. When the alarm sound is silenced, aflashing LED becomes continuous. If the alarm condition is not corrected by the end of the silenceperiod, the alarm sound is repeated; the LED will flash again. If a new high or medium priority alarmcondition occurs during this time, the appropriate LED flashes. New low priority alarms do not causethe LED to flash.

NOTE

Pressing the Silence button while the silence period is active does not restart the silenceperiod.



ALARM LED BEHAVIOR

RED ALARM LED

The red alarm LED indicates high priority system and patient alarms. The LED flashes when a newhigh priority alarm is detected. It changes from flashing to continuous when the alarm sound issilenced or the alarm condition is corrected. The LED resumes flashing when the silence periodexpires or if a new alarm occurs. The LED turns off when all high priority alarms with an automaticreset method end and there are no high priority alarms with a manual reset method are active.Additionally, the red LED turns off when you press the Reset button.

YELLOW ALARM LED

The yellow alarm LED indicates medium or low priority system and power alarms. The LED flasheswhen a new medium priority alarm is detected. It changes from flashing to continuous when the alarmsound is silenced or if the alarm condition is corrected. The LED resumes flashing when the silenceperiod expires or if a new alarm occurs. The LED turns off when all medium and low priority alarmswith an automatic reset method end and there are no medium or low priority alarms with a manualreset method active. Additionally, the yellow alarm LED turns off when you press the Reset Button.

DISPLAY BEHAVIOR

For high, medium, and low priority alarms the display shows ALARM and the name of the alarm.

SYSTEM ALARMSThe BiPAP Synchrony has several system alarms:

• System Error

• Card Error

• Pressure Regulation High

• Pressure Regulation Low

• Low Pressure Support

SYSTEM ERROR ALARM

The System Error Alarm is a high priority alarm. It indicates that there is a problem with the device.Unlike other high priority alarms, the red LED cannot be turned off because the alarm does not stopuntil the power shuts down and is then restored. A three digit error code displays on the screen,indicating the type of error (e.g., error code 57 displays as E57). When a system error occurs, theBiPAP Synchrony’s LCD backlight is turned on and the blower and humidifier are off. Pressing theReset button only shuts off the audible alarm.



CARD ERROR ALARM

The Card Error alarm is a low priority alarm. It indicates that a problem exists with the SmartCardinserted in the device. Removing the SmartCard automatically resets this alarm. Additionally,pressing the Reset button stops the alarm until another valid SmartCard is inserted and detected.

A three digit error code displays on the screen, indicating the type of error (e.g., error code 57 displaysas C57). When a card error occurs, the BiPAP Synchrony’s LCD backlight is turned on. Pressingeither the Reset button or Silence button exits this screen and returns to the previous screen.

PRESSURE REGULATION HIGH ALARM The Pressure Regulation High alarm is a high priority alarm. It indicates that the outlet pressure isgreater than 5 cmH2O above the IPAP setpoint. This alarm does not reset automatically. Press theReset button to manually reset this alarm. The Pressure Regulation High, Pressure Regulation Low,and Low Pressure Support alarms both display the following screen.

When this screen displays a Pressure Regulation High alarm, the cm H2O and ALARM icons flashand the LCD backlight is turned on. Pressing either the Silence or Reset button exits this screen andreturns to the previous screen. If the condition occurs for 0.5 seconds, the device cycles to EPAP.After 3 seconds, if the condition continues, a high priority alarm is generated, but the device stilloperates. If the condition is still detected after 10 seconds, the device shuts down.

PRESSURE REGULATION LOW ALARM

The Pressure Regulation Low alarm is a high priority alarm that indicates when the patient is notreceiving adequate pressure therapy (the outlet pressure is 5 cm H2O below the IPAP set point). Thisalarm does not reset automatically. Press the Reset button to manually reset this alarm. When thePressure Regulation Low alarm screen appears, the cmH2O, and Alarm icons flash and the LCDbacklight is turned on. Pressing either the Silence or Reset button exits this screen and returns to theprevious screen.

LOW PRESSURE SUPPORT ALARM

The Low Pressure alarm is a high priority alarm that indicates that a low pressure support conditionhas been detected for 60 seconds. This alarm does not reset automatically. Press the reset button tomanually reset this alarm. Pressing either the Silence or Reset button exits this screen and returns tothe previous screen.

cmH2O



PATIENT ALARMSThe BiPAP Synchrony has the following patient alarms:

• Apnea

• Patient Disconnect

• Low Minute Ventilation

• Low Tidal Volume

APNEA ALARM

The Apnea Alarm is a high priority alarm that detects the sensation of spontaneous breathing. Itoccurs when the time between spontaneous breaths exceeds the Apnea alarm time setting (10, 20, or30 seconds). A setting of zero disables the Apnea Alarm. When an apnea alarm occurs, the APNEAand ALARM icons flash on display and the LCD backlight is turned on. This alarm does notautomatically reset. Press the Reset button to manually reset the alarm.

PATIENT DISCONNECT ALARM

The Patient Disconnect Alarm is a high priority alarm. It occurs when the patient is disconnected fromthe BiPAP Synchrony for the time specified in the Patient Disconnect alarm time setting (0, 15,or 60seconds). When a patient disconnect alarm occurs, the Patient and ALARM icons flash on the displayand the LCD backlight is turned on. A setting of zero disables the Patient Disconnect alarm. Thisalarm does not automatically reset. Press the Reset button to manually reset the alarm.

LOW MINUTE VENTILATION

The Low Minute Ventilation alarm is a high priority alarm. It occurs when the calculated minuteventilation is less than or equal to the alarm setting. When a Low Minute Ventilation alarm occurs, theAlarm and Min Vent icons flash on the display and the LCD backlight is turned on. This alarm doesnot automatically reset. Press the reset button to manually reset the alarm.

NOTE

A setting of zero disables the Low Minute Ventilation alarm.

A

A



LOW TIDAL VOLUME ALARM

The Low Tidal Volume alarm is a high priority alarm. IT occurs when the calculated tidal volume is lessthan 90% of the target tidal volume setting. When a Low Tidal Alarm occurs, the Alarm and VTEsymbols flash on the display and the LCD backlight is turned on. This alarm does not automaticallyreset. Press the reset button to manually reset the alarm

POWER ALARMSThe BiPAP Synchrony power alarms are described below.

EXTERNAL BATTERY DISCHARGED

This alarm occurs when the external battery is below 9.8V. This alarm does not occur if AC power isavailable, but the Low External Battery alarm remains active. The red alarm LED flashes when thisalarm occurs and the power failure audible alarm beeps. The Silence and Reset buttons do not applyto this alarm.

NOTE

A setting of zero disables the Low Tidal Volume alarm.



LOSS OF INPUT POWER

This alarm occurs when AC and DC power is lost while the unit is in the Operate state, or AC and DCpower is not available when the Pressure On/Off button is pressed. The red alarm LED flashes whenthis alarm occurs and the power failure audible alarm beeps. The Silence and Reset buttons do notapply to this alarm.

LOW EXTERNAL BATTERY

This alarm occurs when the external battery is below 10.3V. It is a medium priority alarm. When thisalarm occurs, the yellow LED and the DC power LED flash upon detection. When the alarm is reset orthe battery is replaced, the yellow LED goes away and the DC power LED stops flashing (but remainson to indicate that DC power is being used). The medium priority audible alarm sounds. This alarmautomatically resets when the external battery is replaced. Additionally, you can press the Resetbutton to reset this alarm; however, the alarm will recur unless the external battery is replaced.

AC TO DC POWER SWITCHOVER

This alarm occurs when the BiPAP Synchrony switches from AC to DC power. It is a low priority alarm.When this alarm occurs, the yellow LED is on and the DC power LED flashes upon detection. Whenthe alarm is reset, the yellow LED goes away and the DC power LED stops flashing (but remains on toindicate that DC power is being used). The low priority audible alarm sounds. This alarmautomatically resets when AC power is restored. Additionally, you can use the Reset button tomanually reset this alarm.

BATTERY IN USE

This alarm occurs only upon startup, to notify the user that the battery power is being used. This is alow priority alarm.

When this alarm occurs, the yellow LED is on and the DC Power LED flashes. The low priority audiblealarm sounds. This alarm automatically resets when AC power is provided. Additionally, you can usethe Reset button to manually reset this alarm.

AC POWER SUPPLY ALARM

This alarm may indicate two issues, depending on which power supply is connected. If only the DCpower adapter is connected, the alarm indicates that the power supply has a defective battery senseline. If only the AC power supply is connected or if both the AC power supply and DC power adapterare connected, this alarm indicates that the AC power supply is out of specification (less than 22V).You can press the Reset button to reset the alarm. However, the AC power LED continues to flashafter a manual reset.



TROUBLESHOOTING TABLE

Symptom Cause Verification Corrective ActionDisplay Indicator-LED or other indicator not working

Main printed circuit assembly (Main PCA).

Perform BiPAP Synchrony Performance Verification (8.5)

If device fails user interface checkout procedure, replace Main PCA

Display-Display is blank or contains erroneous information.

Display Assembly

Main PCA

Inspect solder joints between display and Main PCA.

Replace Main PCA.

Intermittent Power Supply Problem-An intermittent on/off condition exists, unit alarms randomly, or indicator lights blink sporadically.

Power cord, Power Supply, AC inlet, Main PCA, loose connections.

Inspect power cord and power supply for fraying at cable ends.

Inspect all connections on the Main PCA.

Replace Power Supply

Replace Main PCA.

Noise- Missing or damaged rubber feet on bottom of device, blower malfunctioning. Blower impeller imbalance.

Turn over and inspect the bottom for missing or damaged rubber feet. Place hand on device, if vibration is detected, then replace blower S/A.

If rubber feet are missing replace rubber feet. Tighten any loose screws.

Resolve any air leaks.

Replace Blower



Symptom Cause Verification Corrective Action

Humidifier will not turn on.

Humidifier not turned back on after BiPAP Synchrony was turned off

Faulty Power Cord

Broken or damaged Light Pipe

No infrared connection

Humidifier Main PCA

BiPAP Synchrony Main PCA

Humidifier Heater Plate

Inspect main power cord for fraying at cable ends.

Inspect power cord between BiPAP Synchrony and Humidifier base.

Inspect Light Pipe inside BiPAP Synchrony for misalignment.

Make sure receiver on Humidifier base is not damaged.

Make sure BiPAP Synchrony is seated properly on the humidifier base.

Inspect BiPAP Synchrony Main PCA for damage to the Humidifier On/Off button.

Inspect Heater Plate to see that it is connected to the humidifier Main PCA and that it is not damaged.

Replace Power Cord.

Replace Main PCA in humidifier base.

Realign or replace light pipe.

Replace Humidifier Main PCA.

Reset BiPAP Synchrony on humidifier base.

Replace BiPAPSynchrony Main PCA.

Replace Heater Plate in humidifier base.

Pressure Offset-Static pressure fluctuates from -2.0 cm to +2.0 cm H2O of set pressure

The delivered pressure is higher or lower than the set value by more than - 2.0 cm to +2.0 cm H2O.

Perform power up process. Check internal tubing for kinks.

Check Valve

Replace Main PCA.




No Stored Therapy Data

SmartCard not installed

Not a Respironics SmartCard (error code displayed)

SmartCard not formatted or faulty SmartCard (error code displayed)

No therapy data after usage

Depress the blower on/off button before disconnecting the Main PCA.

Replace SmartCard.

Format SmartCard.

Device LCD or Backlight Failure

Damage to LCD or backlight

Remove power from unit and retry.

Replace Main PCA.

Device On, displays pressure setpoint, No airflow

Loose Connection

Blower/motor failure

Main PCA failure

Check motor plug/PCA connections.

Troubleshoot by substitution with a known good Blower S/A.

Ensure connections are secure.

Replace the blower assembly.

Replace the Main PCA.

Pressure check out of range

Occluded or restricted pressure tube

Defective Valve

Defective pressure sensor

Blower speed regulation

Leaks in flow path

Check pressure with calibrated Manometer.

Replace pressure tubing.

Check/Replace valve

Calibrate Main PCA.

Replace Main PCA.

Check or replace flow element.

Odor- Tubing smells new, device new, airborne residue buildup.

Visually inspect patient tubing for contamination.

Run device in a clean environment for a few hours to eliminate new smell. Wash tubing with soap and water. To clear residue buildup, replace all subassemblies in the patient air stream (blower, filters, patient circuit).




Outlet air temperature-The outlet air temperature is too warm.

Filters dirty, blower, Main PCA.

Ensure the filter is clean and not restricting airflow. Monitor the outlet temperature at the end of the six foot patient tubing. A rise in temperature can be expected (See Chapter 3 for Operating Temperature).

Replace in order until solved:

Filters

Blower

Main PCA

Pressure Related Problem-The outlet pressure does not change or properly adjust.

Pressure tubing has been blocked, disconnected, or kinked. Valve malfunctioning Main PCA or blower malfunction.

Inspect pressure tubing for secure connections and kinks.

Check blower for leaks.

Secure pressure tubing connections.

Check/Replace Valve

Replace blower, pressure tubing, or Main PCA.

Audible Alarm-During audible alarm condition, the alarm is not audible.

Audible Alarm cable not connected to Main PCA.

Buzzer Assembly.

Main PCA.

Perform power up sequence. Visually verify the LEDs and display illuminate. Re-establish original alert conditions. Listen for audible alarm.

Verify with known good buzzer.

Check that audible alarm cable is connected to Main PCA.

Replace Buzzer Assembly

If Audible alarm does not work, replace Main PCA.

If visual indicators are not present at power up, perform user checkout procedure.

If device fails user interface checkout procedure, replace Main PCA.

If alarm is audible during both tests, no corrective action is required.




Device does not operate from the 12 VDC power source-

Faulty DC plug, low DC voltage, fuse in DC cord is blown.

Main PCA.

Ensure DC voltage supply is a minimum of 11.5 VDC. Ensure the DC voltage is stable. Monitor the voltage at the back of the DC connector mounted on the Main PCA. If DC voltage is below 11.5 VDC, replace or recharge DC source. If there is no DC measured at the Main PCA, then check the DC adapter cord for continuity.

If DC source is not at 11.5 VDC or higher, replace or recharge power source as required.

If 12 VDC supply and DC cords are okay, replace Main PCA.

Ramp Pressure-The pressure does not ramp correctly.

No ramp time prescribed in the CPAP mode.

Ramp minimum pressure has to be lower than CPAP pressure.

Main PCA.

Ramp button not functioning.

Verify the patient’s prescription specified ramp. Make sure unit was set for ramp.

Perform the Performance Verification Testing Procedure (Section 8.5).

Set device for ramp.

Replace Main PCA.

If device fails the Performance Verification, replace KeyPad or Main PCA.

Pressure Variation-The pressure varies around the set value, pressure fluctuates greater than 2.0 cm H2O.

Internal Air Leak.

Filters Dirty.

Main PCA, blower, valve.

Air path blocked.

Replace Filter.

Perform Testing Process in Chapter 8.

Replace Blower.

If pressure still drifts, then replace Main PCA, valve.

Check internal tubing.



BIPAP SYNCHRONY SYSTEM ERROR CODE RETRIEVALThe BiPAP Synchrony Ventilatory Support System stores error codes that may aid the technician introubleshooting. The following instructions aid in the retrieval of those error codes. The BiPAPSynchrony can store up to 10 error codes at a time. Once this limit is reached, the error codes will beoverwritten, beginning with the first error code.

INSTALLING THE SOFTWARE1. Go to http://servicesoftware.respironics.com on the internet.2. Download the Utility Software to your computer.

CONNECTING THE BIPAP SYNCHRONY TO YOUR COMPUTER1. Connect the Sleep Link interface card and cable between the BiPAP Synchrony and the

computer serial port.2. Connect the BiPAP Synchrony to the proper power source.

RETRIEVING THE ERROR CODES1. With your mouse, click on the Start Button of your computer.2. Select:

• Programs

• Respironics

• Tools

• Read Error Logs3. The software will load automatically.4. With your mouse, click on the Run Arrow located in the upper left corner of the computer

screen.5. Choose System Error Log or Patient Alarm Log.6. The software will automatically read and display any error codes stored in the unit along

with the time the error occurred.7. To close the software select exit from the file menu.8. Disconnect the Power Cord and the Sleep Link communications cable from the BiPAP

Synchrony.



SYSTEM ERROR CODES LIST (PATIENT ACTION)

Error Code Description of Error Device Action

E0 No Error Reserved

E1 Generic Software Error REBOOT

E2 Software Corrupt STOP

E3 External RAM Failure STOP

E4 FIQ Stack Overflow REBOOT

E5 FIQ Stack Underflow REBOOT

E6 Nested IRQ Stack Overflow REBOOT

E7 Nested IRQ Stack Underflow REBOOT

E8 IRQ Stack Overflow REBOOT

E9 IRQ Stack Underflow REBOOT

E10 Timer Stack Overflow REBOOT

E11 Timer Stack Underflow REBOOT

E12 Service Stack Overflow REBOOT

E13 Service Stack Underflow REBOOT

E14 Thread Stack Overflow REBOOT

E15 Undefined Instruction REBOOT

E16 Unexpected Software Interrupt REBOOT

E17 Microprocessor Prefetch Exception REBOOT

E18 Data Access Exception REBOOT

E19 Reserved Exception REBOOT

E20 Spurious Default Interrupt REBOOT

E21 Spurious Interrupt REBOOT

E22 Corrupt Calibration Table STOP

E23 Invalid Zero Flow Value in Calibration Table

Not Used

E24 Unrecognized Version of Calibration Table

STOP




E25 Excessive Drift on Flow Sensor STOP

E26 Communications Failure with LCD Driver Chip STOP

E27 Excessive Drift on Outlet Pressure Sensor STOP

E28 Empty Calibration Table Not Used

E29 Excessive Drift on Blower Pressure Sensor STOP

E30 Unrecognized Version of Parameter Storage STOP

E31 Un-repairable Parameter Storage STOP

E32 Corrupt Parameter Storage STOP

E33 Excessive Parameter Storage Size STOP

E34 Unable to Queue Data to Parameter Storage REBOOT

E35 Unable to write to parameter storage STOP

E36 Parameter Out of Range STOP

E37 Corrupt Real-Time Clock Value CONTINUE

E38 Real-Time Clock not Ticking CONTINUE

E39 Unable to Queue Data to User Interface REBOOT

E40 Invalid Built-in Self Test Call Not Used

E41 Over Pressure Condition STOP

E42 Operating System not Responding to Software REBOOT

E43 Insufficient Voltage for Audible Alarm STOP

E44 12V Reference Out of Range STOP

E45 5V Reference Out of Range STOP

E46 Bulk Voltage Out of Range STOP

E47 -15V Reference Out of Range STOP

E48 Railed Flow Sensor STOP

E49 Blower Pressure Sensor Failure STOP

E50 Flash Memory Failure Not Used

E51 Unrecognized Main PCA STOP

E52 Blower Failure STOP

E53 Blower Speed Out of Tolerance STOP




E54 Motor Current High While Blower Off STOP

E55 Buffer Overflow REBOOT

E56 Motor Current High While Blower On STOP

E57 Unable to Queue Data to Provide Therapy REBOOT

E58 Stuck Key CONTINUE

E59 Outlet Pressure Sensor Railed STOP

E60 Blower Pressure Sensor Railed STOP

E61 Real-time Clock’s Battery Dead CONTINUE

E62 Blower Speed Exceeds Maximum Limit STOP

E63 Internal Watchdog Failure STOP

E64 External Watchdog failure STOP

E65 Unexpected Watchdog Reset REBOOT

E66 Reserved for Future Use REBOOT

E67 Operating System Failed Initialization REBOOT

E68 Unable to Queue Data for Communication REBOOT

E69 Sampling Thread Locked REBOOT

E70 Execution Thread Locked REBOOT

E71 Internal RAM Failure STOP

E72 Unable to Queue Data for logging REBOOT



E75 Incorrect Display Tape STOP

E76 Failure in Loss of Power Battery STOP

E77 High Pressure Condition LOGGED

E78 Low Pressure Condition LOGGED

E79 Unable to Maintain Pressure Support LOGGED

E80 Barometric Pressure Sensor Failure LOGGED

E81 Barometric Sensor Failure STOP

E82 Invalid Error Code RESERVED



NOTE

The error conditions are categorized into three groups:

CONTINUE/LOGGED: This group contains error conditions in which there isreasonable expectation that the device will operate within published specificationand not cause an unacceptable level of risk.

REBOOT: This group contains error conditions in which there is a reasonableexpectation that the error was a transient and the device will perform properly aftera system reboot.

STOP: This group contains error conditions in which there is a low confidence inthe ability of the device to operate within specification or may cause unacceptablelevel of risk. Additionally, any three (3) Reboot errors within a 24-hour period asreferenced from the last error shall constitute a Stop error.

User will only see STOP errors displayed.



BIPAP SYNCHRONY SYSTEM ERROR CODES (CORRECTIVE ACTION)

Error Code

Description of Error Probable Cause Corrective Action

E0 No Error Reserved Replace Main PCA

E1 Generic Software Error Defective RAM chip Replace Main PCA

E2 Software Corrupt Defective FLASH chip Replace Main PCA

E3 External RAM Failure Defective RAM chip Replace Main PCA

E4 FIQ Stack Overflow Defective RAM chip Replace Main PCA

E5 FIQ Stack Underflow Defective RAM chip Replace Main PCA

E6 Nested IRQ Stack Overflow Defective RAM chip Replace Main PCA

E7 Nested IRQ Stack Underflow Defective RAM chip Replace Main PCA

E8 IRQ Stack Overflow Defective RAM chip Replace Main PCA

E9 IRQ Stack Underflow Defective RAM chip Replace Main PCA

E10 Timer Stack Overflow Defective RAM chip Replace Main PCA

E11 Timer Stack Underflow Defective RAM chip Replace Main PCA

E12 Service Stack Overflow Defective RAM chip Replace Main PCA

E13 Service Stack Underflow Defective RAM chip Replace Main PCA

E14 Thread Stack Overflow Defective RAM chip Replace Main PCA

E15 Undefined Instruction Defective FLASH chip Replace Main PCA

E16 Unexpected Software Interrupt

Defective FLASH or RAM chip

Replace Main PCA

E17 Microprocessor Prefetch Exception

Defective FLASH chip Replace Main PCA

E18 Data Access Exception Defective FLASH or RAM chip

Replace Main PCA

E19 Reserved Exception Defective FLASH chipDefective Microprocessor

Replace Main PCA

E20 Spurious Default Interrupt Defective FLASH chip Replace Main PCA

E21 Spurious Interrupt Defective FLASH or RAM chip

Replace Main PCA

E22 Corrupt Calibration Table Improper CalibrationDefective FLASH chip

RecalibrateReplace Main PCA



Error Code


E23 Invalid Zero Flow Value in Calibration Table

Improper CalibrationOccluded or Restricted Flow TubeDefective Flow Sensor

RecalibrateReplace Flow TubeReplace Main PCA

E24 Unrecognized Version of Calibration Table

Improper CalibrationDefective FLASH chip


E25 Excessive Drift on Flow Sensor

Improper CalibrationOccluded or Restricted Flow TubeDefective Flow Sensor

RecalibrateReplace Flow TubeReplace Main PCA

E26 Communications Failure with LCD Driver Chip

Defective LCD Driver Chip Replace Main PCA

E27 Excessive Drift on Outlet Pressure Sensor

Occluded or Restricted Pressure TubeDefective Pressure Sensor

Replace Pressure TubingReplace Main PCA

E28 Empty Calibration Table Improper CalibrationDefective FLASH Chip


E29 Excessive Drift on Blower Pressure Sensor

Occluded or Restricted Pressure TubeDefective Pressure Sensor


E30 Unrecognized Version of Parameter Storage

Normal for First Time Power UpDefective EPROM

Remove and Restore PowerReplace Main PCA

E31 Un-repairable Parameter Storage

Defective EPROM Replace Main PCA

E32 Corrupt Parameter Storage Normal for First Time Power UpDefective EPROM

Remove and Restore PowerReplace Main PCA

E33 Excessive Parameter Storage Size


Replace Main PCA

E34 Unable to Queue Data to Parameter Storage

Defective EPROM, FLASH, or RAM chip

Replace Main PCA

E35 Unable to write to parameter storage

Defective EPROM Replace Main PCA

E36 Parameter Out of Range Defective EPROM Replace Main PCA

E37 Corrupt Real-Time Clock Value

Defective Microprocessor Replace Main PCA



Error Code


E38 Real-Time Clock not Ticking Defective MicroprocessorDefective Crystal

Replace Main PCAReplace Main PCA

E39 Unable to Queue Data to User Interface


Replace Main PCA

E40 Invalid Built-in Self Test Call Invalid RASP command Reissue RASP Command

E41 Over Pressure Condition Occluded or Restricted Pressure TubeDefective Pressure SensorDefective Motor Drive chipDefective Valve

Replace Pressure TubingReplace Main PCAReplace Main PCAReplace Valve

E42 Operating System not Responding to Software


Replace Main PCA

E43 Insufficient Voltage for Audible Alarm

Defective PCA Replace Main PCA

E44 12V Reference Out of Range Defective Power Supply Replace Main PCA

E45 5V Reference Out of Range Defective Power Supply Replace Main PCA

E46 Bulk Voltage Out of Range Defective Power Supply Replace Main PCA

E47 -15V Reference Out of Range Defective Power Supply Replace Main PCA

E48 Railed Flow Sensor Occluded or Restricted Flow TubeDefective Flow Sensor

Replace Flow TubeReplace Main PCA

E49 Blower Pressure Sensor Failure Occluded or Restricted Pressure TubeDefective Blower Pressure Sensor


E50 Flash Memory Failure Defective FLASH chip Replace Main PCA

E51 Unrecognized Main PCA Needs New SoftwareDefective PCA

Replace Main PCAReplace Main PCA

E52 Blower Failure Stalled or Locked BlowerDefective Motor Drive Chip

Replace BlowerReplace Main PCA

E53 Blower Speed Out of Tolerance Stalled or Locked BlowerDefective Motor Drive Chip


E54 Motor Current High While Blower Off

Stalled or Locked BlowerDefective Motor Drive Chip




Error Code


E55 Buffer Overflow Defective PCA Replace Main PCA

E56 Motor Current High While Blower On

Stalled or Locked BlowerDefective Motor Drive Chip


E57 Unable to Queue Data to Provide Therapy


Replace Main PCA

E58 Stuck Key Verify all keys protrude through topDefective KeypadDefective Pad on PCA

Replace Main PCAAlign keys with topReplace Keypad

E59 Outlet Pressure Sensor Railed Occluded or restricted pressure tubeDefective pressure sensor

Replace Main PCAReplace Pressure Tube

E60 Blower Pressure Sensor Railed Occluded or restricted pressure tubeDefective pressure sensor

Replace Main PCAReplace Pressure Tube

E61 Real-time Clock’s Battery Dead Dead Battery Replace Main PCA

E62 Blower Speed exceeds maximum limit

Defective Motor Drive chip Replace Main PCA

E63 Internal Watchdog Failure Defective RAM chip Replace Main PCA

E64 External Watchdog failure Defective Microprocessor Replace Main PCA

E65 Unexpected Watchdog Reset Defective FLASH or RAM chip

Replace Main PCA

E66 Reserved for Future Use Defective RAM chip Replace Main PCA

E67 Operating System Failed Initialization


Replace Main PCA

E68 Unable to Queue Data for Communication


Replace Main PCA

E69 Sampling Thread Locked Defective PCA Replace Main PCA

E70 Execution Thread Locked Defective PCA Replace Main PCA

E71 Internal RAM Failure Defective Microprocessor Replace Main PCA

E72 Unable to Queue Data for logging


Replace Main PCA




Error Code



E75 Incorrect Display Tape Incorrect LCD setup on Main PCA Replace Main PCA

E76 Failure in Loss of Power Battery

Defective PCA Replace Main PCA

E77 Invalid Error Code Reserved Replace Main PCA

E78 Low Pressure Condition Defective Motor Drive ChipDefective ValveDefective PCAExcessive leak in patient circuit

Replace Main PCAReplace ValveReplace Main PCACorrect leak in patient circuit

E79 Unable to Maintain Pressure Support

Defective ValveDefective PCAExcessive leak in patient circuit

Replace ValveReplace Main PCACorrect leak in patient circuit

E80 Barometric Pressure Sensor Failure

The raw value from the barometric pressure sensor A/D converter is outside its valid range of values

Replace Main PCA

E81 BarometricSensor Failure The barometric pressure reading is outside its acceptable range.

Replace Main PCA

E82 Invalid Error Code Reserved Replace Main PCA



BIPAP SYNCHRONY SMARTCARD ERROR CODES

Error Code Description of Error User Action

C1 Unable to Write to SmartCard Card inserted Upside-down. Remove card and reinsert properly. Otherwise, card is damaged and should be replaced.

C2, C3 Card is Corrupt Erase or reprogram card.

C4 Card contains a prescription and was inserted while the unit was in a parameter screen.

Remove Card. Exit parameter screen. Then reinsert card.

C5 Card inserted while the unit was in calibration mode

Remove Card. Exit Calibration mode. Then reinsert card.

C6 Card is Corrupt Erase or reprogram card.

C7 Reserved N/A

C8 Unable to Read from SmartCard Card inserted Upside-down. Remove card and reinsert properly. Otherwise, card is damaged and should be replaced.

C9, C10C100, C101

Card is Corrupt Erase or reprogram card.

C103-C105 Card Contains an Unknown Prescription Card contains a prescription that is not supported by this unit. Perhaps card is intended for another unit.

C106-C109,C200

Card is corrupt Erase or reprogram card.

C201 Card Contains an Unknown Logging Format

Card contains a logging format that is not supported by this unit. Perhaps card is intended for another unit.

C202-C207,C300-C303,C400-C409,C500-C506

Card is Corrupt Erase or reprogram card.



REPAIR AND REPLACEMENT

CHAPTER OVERVIEWThis chapter illustrates the names and locations of the replaceable components in the BiPAPSynchrony system. This chapter provides a quick reference and overview of the unit. Within eachreplacement section, more detailed support information is provided to illustrate the exact componentlocation and replacement procedure(s).

For technical assistance or replacement part ordering information, contact Respironics ProductSupport.

USA and Canada

Phone: 1-800-345-6443Fax: 1-800-866-0245


International

Phone: 1-724-387-4000Fax: 1-800-387-5012


www.respironics.com

NOTE

Refer to the Repair Kits Section for proper repair part identification.

REPAIR & REPLACEMENT - PAGE 11032444, REV. 00


WARNINGS AND CAUTIONS

REPLACEMENT INSTRUCTIONSRefer to Figure A and Figure B before removing or installing any components. These figures will detailthe order in which each item must be removed or installed and should be used as a guideline for quickreference.

WARNING

To prevent electrical shock, disconnect the electrical supply beforeattempting to make any repairs to the BiPAP Synchrony VentilatorySupport System.

CAUTION

Electromagnetic components used in this unit are subject to damagefrom static electricity. Repairs made to this unit must be performed onlyin an antistatic, Electro-Static Discharge (ESD) protected environment.

1032444, REV. 00REPAIR & REPLACEMENT - PAGE 2


FIGURE A: REMOVAL FLOW CHART

Alarm Label

Key Pad

Top Enclosure

Main PCA

Outlet Port/Flow Element

Diffuser/ Coupler

Valve Assembly

Blower Assembly

Muffler

Buzzer Assembly

Bottom Enclosure with foam

Filters

Filter Cover



FIGURE B: INSTALLATION FLOW CHART

Bottom Enclosure with foam

Buzzer Assembly

Muffler

Blower Assembly

Valve Assembly

Diffuser/ Coupler

Outlet Port/Flow

Main PCA

Top Enclosure

Alarm Label

Key Pad

Filter Cover

Filters



TOP ENCLOSURE REPLACEMENT

PROCEDURE

Removed/Installed During Process:• Top Enclosure

FIGURE C: REMOVAL AND INSTALLATION OF THE TOP ENCLOSURE

To remove the Top Enclosure:1. Place the device on a protected work surface and carefully turn it over, exposing the bot-

tom enclosure. 2. Using a Phillips screwdriver, remove the three screws that secure the top enclosure to the

bottom enclosure.



FIGURE D: SCREW LOCATIONS

3. While securely holding the top and bottom enclosure together, carefully return the device to its upright position.

4. Lift the top enclosure up and away from the bottom enclosure.

To Install the Top Enclosure1. Place the new top enclosure down over the key pad and Main PCA.2. While securely holding the top enclosure and bottom enclosure together, carefully turn the

device upside down.3. Insert and tighten the three Phillips screws to secure the top and bottom enclosure

together.

Screws



MAIN PRINTED CIRCUIT ASSEMBLY (PCA) REPLACEMENT

PROCEDURE

Removed/Installed During Process:• Top Enclosure (Refer to page 5 for detailed instructions.)

• Main PCA

FIGURE E: REMOVAL AND INSTALLATION OF THE MAIN PRINTED CIRCUIT ASSEMBLY

To remove the Main PCA:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions on removing

the Top Enclosure).2. Lift the Main PCA and hold it slightly above the Blower Assembly to provide access to the

blower cable connector and buzzer connector. 3. Disconnect the blower connector from the Main PCA.4. Disconnect the buzzer from the Main PCA.5. Disconnect the pressure tubing and flow sensor tubing from the Main PCA.6. Disconnect the Valve Assembly connector from the Main PCA.



FIGURE F: LOCATION OF BLOWER CABLE CONNECTOR AND BUZZER CONNECTOR

FIGURE G: PRESSURE TUBING

FIGURE H: FLOW SENSOR TUBING AND VALVE ASSEMBLY

Blower Connector

Buzzer Connector

Pressure Tubing

Flow Sensor Tubing

Valve Assembly Connector



7. Remove the Key Pad (Refer to page 10 for more detailed instructions on removing the Key Pad).

To install the Main PCA:1. Install the Key Pad (Refer to page 10 for more detailed instructions on installing the Key

Pad). 2. While holding the Main PCA over the bottom enclosure assembly, attach the flow sensor

tubing closest to the outlet port to P1 on MT2. Attach the flow sensor tubing closest to the valve assembly to P2 on MT2.

3. Attach the valve assembly connector to J9 on the Main PCA. 4. Attach the pressure tubing from the outlet port to the flow sensor marked “Outlet” on the

Main PCA.5. Attach the pressure tubing from the blower to the sensor marked “Sensor” on the Main

PCA.6. Attach the blower connector to J5 on the Main PCA.7. Attach the buzzer connector to J6 on the Main PCA. Ensure that the wires are positioned

between the two ports on the Flow Element.8. Gently set the Main PCA down on the three stands that will hold the Main PCA in place. 9. Install the Top Enclosure (Refer to page 5 for more detailed instructions on installing the

Top Enclosure).

NOTE

The display assembly is soldered to the Main PCA.



KEYPAD REPLACEMENT

Procedure

Removed/Installed During Process:• Top Enclosure (Refer to page 5 for more detailed instructions.)

• Main PCA (Refer to page 7 for more detailed instructions.)

• Key Pad

FIGURE I: KEY PAD

To remove the Key Pad:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions on removing

the Top Enclosure).2. Remove the Main PCA (Refer to page 7 for more detailed instructions on removing the

Main PCA).3. Carefully lift the Key Pad from the Main PCA. There are three locking pins that hold the

key pad to the Main PCA.

FIGURE J: KEY PAD

Locking Pins



To install the Key Pad:1. Place the key pad on the Main PCA. Align the locking pins with the three holes on the dis-

play assembly. Press down on the locking pins until they snap into place.

FIGURE K: PIN LOCATION

2. Install the Main PCA (Refer to page 7 for more detailed instructions on installing the Main PCA).

3. Install the Top Enclosure (Refer to page 5 for more detailed instructions on installing the top enclosure).

Align Locking

Pins Here



OUTLET-FLOW-TUBING REPLACEMENT

Procedure



• Outlet-Flow-Tubing Assembly

FIGURE L: REMOVAL AND INSTALLATION OF THE OUTLET-FLOW TUBING

To remove the Outlet-Flow-Tubing Kit:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions on removing

the top enclosure).2. Remove the Main PCA (Refer to page 7 for more detailed instructions on removing the

Main PCA).3. Disconnect the Flow Element from the Coupler and remove the Flow Element, Outlet Port,

and Tubing from the unit.

NOTE

This kit comes pre-assembled for easy installation in the device.



To install the Outlet-Flow-Tubing:

1. Position the Outlet Port in its mounting location in the Bottom Enclosure.2. Connect the Flow Element to the Coupler.3. Route the Flow Sensor Tubing underneath the Outlet Port and on the outside of the Cou-

pler as Shown in Figure L. 4. Connect all Tubing to the Main PCA. 5. Install the Main PCA (Refer to page 7 for more detailed instructions on installing the Main

PCA).6. Install the Top Enclosure (Refer to page 5 for more detailed instructions on installing the

top enclosure).

CAUTION

Twisting and/or turning the Flow Element or Outlet Port may cause improper alignment.



DIFFUSER ASSEMBLY REPLACEMENT

Procedure



• Outlet-Flow-Tubing (Refer to page 12 for more detailed instructions.)

• Diffuser Assembly

FIGURE M: DIFFUSER ASSEMBLY

To remove the Diffuser Assembly:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions on removing


Main PCA).3. Remove the Outlet-Flow Tubing (Refer to page 12 for more detailed instructions on

removing the Outlet-Flow-Tubing).4. Slide the Coupler off the Diffuser Assembly. 5. Slide the Diffuser out of the Valve Assembly.

To install the Diffuser Assembly:1. Slide the Diffuser into the Valve Assembly2. Slide the Coupler onto the other end of the Diffuser.3. Install the Outlet-Flow-Tubing (Refer to page 12 for more detailed instructions on installing

the Outlet-Flow-Tubing).4. Install the Main PCA (Refer to page 7 for more detailed instructions on installing the Main


Top Enclosure).

Diffuser



VALVE ASSEMBLY REPLACEMENT

Procedure




• Diffuser Assembly (Refer to page 14 for more detailed instructions.)

• Valve Assembly

FIGURE N: REMOVAL AND INSTALLATION OF VALVE ASSEMBLY

To remove the Valve Assembly:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions on removing


Main PCA).3. Remove the Outlet-Flow Tubing (Refer to page 12 for more detailed instructions on

removing the Outlet-Flow-Tubing).4. Remove the Diffuser Assembly (Refer to page 14 for more detailed instructions on remov-

ing the Diffuser Assembly).5. Remove the three screws and washers that hold the Valve Assembly onto the bottom

enclosure stands.



6. Slide the elbow off of the blower outlet.7. Lift the Valve Assembly up and away from the bottom enclosure.

To install the Valve Assembly:1. Place the Valve Assembly onto the Bottom Enclosure standoffs making sure the grommets

do not cover the holes and the foam gasket on the valve assembly exhaust outlet is prop-erly seated in the muffler exhaust port.

2. Route the valve wires towards the rear of the unit.3. Fasten the Valve Assembly to the Bottom Enclosure standoffs using the three screws and

washers. 4. Slide the elbow over the blower outlet.5. Install the Diffuser Assembly (Refer topage 14 for more detailed instructions on installing

the Diffuser Assembly).6. Install the Outlet-Flow-Tubing (Refer to page 12 for more detailed instructions on installing

the Outlet-Flow-Tubing).7. Install the Main PCA (Refer to page 7 for more detailed instructions on installing the Main


Top Enclosure).

NOTE

Do not remove tubing from the Valve Assembly.



BLOWER ASSEMBLY

Procedure



• Blower Assembly

FIGURE O: BLOWER ASSEMBLY

To remove the Blower Assembly:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions).2. Remove the Main PCA (Refer to page 7 for more detailed instructions).3. Remove the two screws that hold the damper strap to the Bottom Enclosure. 4. Lift the damper strap up and away from the blower.5. Gently pull the pressure tubing from the blower outlet pickoff.6. Slide the Valve Assembly elbow off of the blower outlet.7. Lift the Blower Assembly up and away from the Bottom Enclosure. The blower doughnut

may not come out of the Bottom Enclosure with the blower. If this is the case, remove the doughnut.

Blower Assembly



To install the Blower Assembly:1. Place the blower doughnut onto the bottom of the Blower Assembly. Ensure the keys on

the blower bottom are aligned with the slots in the doughnut.

FIGURE P: BLOWER DOUGHNUT

2. Align the Blower Assembly with the doughnut into the slot in the Bottom Enclosure.

FIGURE Q: BLOWER CAP

3. Place the blower cap on top of the Blower Assembly. Make sure the blower wires and connector are aligned with the cut-out in the blower top and the slot in the top of the Blower Assembly.

4. Place the damper strap onto the blower assembly. 5. Align the damper strap with blower assembly with the screw holes in the Bottom Enclo-

sure. 6. Fasten the damper strap down to the Bottom Enclosure with the two screws. 7. Slide the Valve Assembly elbow onto the blower outlet.8. Attach the pressure tubing to the blower outlet pickoff.9. Install the Main PCA (Refer to page 7 for more detailed instructions).10. Install the Top Enclosure (Refer to page 5 for more detailed instructions).

Doughnut

Cap



MUFFLER REPLACEMENT

Procedure





• Valve Assembly (Refer to page 15 for more detailed instructions.)

• Blower Assembly (Refer to page 17 for more detailed instructions.)

• Muffler

FIGURE R: REMOVAL AND INSTALLATION OF THE MUFFLER



To remove the Muffler:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions).2. Remove the Main PCA (Refer to page 7 for more detailed instructions).3. Remove the Outlet-Flow-Tubing Assembly (Refer to page 12 for more detailed instruc-

tions).4. Remove the Diffuser assembly (Refer to page 14 for more detailed instructions).5. Remove the Valve Assembly (Refer to page 15 for more detailed instructions).6. Remove the Blower Assembly (Refer to page 17 for more detailed instructions).7. Remove the four screws that fasten the Muffler to the Bottom Enclosure.8. Lift the Muffler up and away from the Bottom Enclosure.

To install the Muffler:1. Place the Muffler onto the Bottom Enclosure.2. Ensure the exhaust air path foam and the inlet air path foam are aligned properly. 3. Fasten the Muffler down to the bottom with four screws.4. Install the Blower Assembly (Refer to page 17 for more detailed instructions).5. Install the Valve Assembly (Refer to page 15 for more detailed instructions).6. Install the Diffuser Assembly (Refer to page 14 for more detailed instructions).7. Install the Outlet-Flow Tubing Assembly (Refer to page 12 for more detailed instructions).8. Install the Main PCA (Refer to page 7 for more detailed instructions).9. Install the Top Enclosure (Refer to page 5 for more detailed instructions).



BUZZER ASSEMBLY

Procedure




• Buzzer Assembly

FIGURE S: REMOVAL AND INSTALLATION OF THE BUZZER ASSEMBLY

To remove the Buzzer Assembly:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions).2. Remove the Main PCA (Refer to page 7 for more detailed instructions).3. Remove the Outlet-Flow-Tubing Assembly (Refer to page 12 for more detailed instruc-

tions).4. Remove the two screws and washer that fasten the buzzer assembly to the Bottom Enclo-

sure and lift the buzzer up and away from the Bottom Enclosure.

To install the Buzzer Assembly:1. Place the buzzer in the Bottom Enclosure and fasten it down using two screws and wash-

ers. Ensure that the buzzer wire is positioned towards the rear of the unit.2. Install the Outlet-Flow Tubing Assembly (Refer to page 12 for more detailed instructions).3. Install the Main PCA (Refer to page 7 for more detailed instructions).4. Install the Top Enclosure (Refer to page 5 for more detailed instructions).



BOTTOM ENCLOSURE

Procedure

Removed/Installed During Process:• Top Enclosure (Refer topage 5 for more detailed instructions.)


• Outlet-Flow-Tubing (Refer topage 12 for more detailed instructions.)


• Valve Assembly (Refer to page 15 for more detailed instructions.)

• Blower Assembly (Refer to page 17 for more detailed instructions.)

• Muffler (Refer to page 19 for more detailed instructions.)

• Buzzer (Refer to page 21 for more detailed instructions.)

• Bottom Enclosure

FIGURE T: BOTTOM ENCLOSURE

To remove the Bottom Enclosure:1. Remove the Top Enclosure (Refer to page 5 for more detailed instructions).2. Remove the Main PCA (Refer to page 7 for more detailed instructions).3. Remove the Outlet-Flow-Tubing Assembly (Refer to page 12 for more detailed instruc-

tions).4. Remove the Diffuser Assembly (Refer to page 14 for more detailed instructions).5. Remove the Valve Assembly (Refer to page 15 for more detailed instructions).6. Remove the Blower Assembly (Refer to page 17 for more detailed instructions).7. Remove the Muffler (Refer to page 19 for more detailed instructions).8. Remove the Buzzer (Refer to page 21 for more detailed instructions).9. Remove Light Pipe from Bottom Enclosure.



To install the Bottom Enclosure:1. Remove the backing from the AVAPS Label. Place the label on the front of the unit, in the

bottom right-hand corner. 2. Remove the backing from the Pressure On/Off Sticker. Center the sticker under the cut-

out for the On/Off button.

FIGURE U: PRESSURE ON/OFF STICKER PLACEMENT

3. Position the end of the light pipe with the notch in it towards the Bottom Enclosure.4. Insert the Light Pipe into the Bottom Enclosure until the Light Pipe snaps in the mating fea-

ture in the bottom.

FIGURE V: LIGHT PIPE PLACEMENT

5. Place the Exhaust Air Path Foam onto the Bottom Enclosure (Refer to Figure W).6. Place the Inlet Air Path Foam onto the Bottom Enclosure (Refer to Figure W).

Pressure On/Off Sticker

Light Pipe Placement



FIGURE W: FOAM PLACEMENT

7. Install the Buzzer (Refer to page 21 for more detailed instructions).8. Install the Muffler (Refer topage 19 for more detailed instructions).9. Install the Blower Assembly (Refer to page 17 for more detailed instructions).10. Install the Valve Assembly (Refer to page 15 for more detailed instructions).11. Install the Diffuser Assembly (Refer to page 14 for more detailed instructions).12. Install the Outlet-Flow Tubing Assembly (Refer to page 12 for more detailed instructions).13. Install the Main PCA (Refer to page 7 for more detailed instructions).14. Install the Top Enclosure (Refer to page 5 for more detailed instructions).

Inlet Air Path Foam Placement

Exhaust Air Path Foam Placement



REPAIR KITS

CHAPTER OVERVIEWThis chapter illustrates the names and components for each of the repair kits for the BiPAP Synchronysystem.

For technical assistance or replacement part ordering information, contact Respironics ProductSupport.

USA and Canada

Phone: 1-800-345-6443Fax: 1-800-866-0245


International

Phone: 1-724-387-4000Fax: 1-800-387-5012


www.respironics.com

REPAIR KITS - PAGE 11032445, REV. 00


REPAIR KIT REFERENCE TABLE

PART NUMER REPAIR KIT NAME PAGE IDENTIFIER1031394 Top Enclosure Page 31031732 Main PCA Page 41031731 KeyPad Page 51025184 Outlet-Flow-Tubing Assembly Page 61018156 Diffuser Page 71017912 Valve Assembly Page 81023818 Blower Assembly Page 91017913 Muffler Page 101018163 Buzzer Assembly Page 111032132 Bottom Enclosure Page 121017937 Warning Label Page 131005945 Ultra Fine Filter Page 141005964 Pollen Filter Page 151019523 Filter Cap Page 161012832 60 Watt Power Supply Page 171018160 Alarm Label Page 181007492 SleepLink Communication Cable Page 191031099 SmartCard Seal Page 201032896 Tubing Kit Page 21

1032445, REV. 00REPAIR KITS - PAGE 2


TOP ENCLOSURE REPAIR KIT

PART NUMBER: 1031394

Included in Kit Tools Required

Top Enclosure Phillips Screwdriver (No. 2 Medium)



MAIN PRINTED CIRCUIT ASSEMBLY (PCA) REPAIR KIT

PART NUMBER:1031732


Main PCA Phillips Screwdriver (No. 2 Medium)

SmartCard Seal

Power Switch Seal

Connector Seal



KEYPAD REPAIR KIT



KeyPad Phillips Screwdriver (No. 2 Medium)



OUTLET-FLOW-TUBING REPAIR KIT



Flow Element Phillips Screwdriver (No. 2 Medium)

Outlet Port

Flow Sensor Tubing (x2)

Pressure Tubing (x2)

Coupler

NOTE

This kit comes pre-assembled for easy installation in the device.



DIFFUSER ASSEMBLY REPAIR KIT



Diffuser Phillips Screwdriver (No. 2 Medium)



VALVE ASSEMBLY REPAIR KIT



Valve Assembly Phillips Screwdriver (No. 2 Medium)

Grommets (x3)

Screws (x3)

Washers (x3)



BLOWER ASSEMBLY REPAIR KIT



Blower Assembly Phillips Screwdriver (No. 2 Medium)

Blower Cap

Damper Strap

Doughnut

Screws (x2)



MUFFLER REPAIR KIT



Muffler Phillips Screwdriver (No. 2 Medium)

Screws (x4)



BUZZER ASSEMBLY REPAIR KIT



Buzzer Assembly Phillips Screwdriver (No. 2 Medium)

Screws (x2)

Washers (x2)



BOTTOM ENCLOSURE REPAIR KIT



Bottom Enclosure Phillips Screwdriver (No. 2 Medium)

Light Pipe

AVAPS Label

Pressure On/Off Label

Exhaust Air Foam

Inlet Air Foam

Screws (x3)

NOTE

Contact Respironics Product Support for the proper labeling when replacing thebottom enclosure



WARNING LABEL REPAIR KIT



Warning Label None



ULTRA FINE FILTER REPAIR KIT



Ultra Fine Filter None



POLLEN FILTER REPAIR KIT



Pollen Filter None



FILTER CAP REPAIR KIT



Filter Cap None



60 WATT POWER SUPPLY REPAIR KIT



Power Supply None



ALARM LABEL REPAIR KIT



Alarm Label None



SLEEPLINK COMMUNICATION CABLE REPAIR KIT



SleepLink Communication Cable

None



SMARTCARD SEAL REPAIR KIT



SmartCard Seal None



TUBING REPAIR KIT



Pressure Tubing (x2) None

Flow Tubing (x2)

Coupler



TESTING

TESTING PROCESSThis chapter provides run-in, calibration, AC current draw testing, and performance verificationprocedures for the BiPAP Synchrony. Calibration and AC current draw testing are necessary onlywhen a repair has been made to the BiPAP Synchrony. However, these procedures may be used inconjunction with the performance verification to determine that the BiPAP Synchrony is functioningproperly. Verification shall be performed at periodic intervals commensurate with hospital or homecare provider guidelines for preventive maintenance, between rentals or during normal patient usage.

Calibration and testing of the BiPAP Synchrony requires the use of Respironics Utility Software.Before proceeding, log on to http://servicesoftware.respironics.com and download the Utility Softwareonto your PC.

Calibration and testing can also be performed on the Multi-function Test Station at service locationsequipped with this device.

BIPAP SYNCHRONY SYSTEM RUN-INBefore the BiPAP Synchrony can be calibrated, the device must be run-in for at least 2 hours to avoidpossible calibration failures.

EQUIPMENT REQUIRED

• 0.25” Test Orifice (RI p/n 332353)

PROCEDURE1. Connect the test orifice to the outlet port of the unit. 2. Enter the therapy setup menu (refer to the System Setup Porcedures Section for detailed

instructions). Set the unit to CPAP mode and set the pressure to 20 cm H2O.

3. Run the unit for at least 2 hours before performing the calibration.

PERFORMANCE VERIFICATIONThis procedure provides guidelines to verify the performance of the BiPAP Synchrony.

PROCEDURE1. Record the Serial Number and Model Number of the unit located on the bottom enclosure

on the test data sheet (refer to page 22). 2. Plug the BiPAP Synchrony power source in and record the line voltage used for testing

and the blower hours on the test data sheet (refer to page 22). 3. Place the BiPAP test orifice (RI p/n 332353) on the outlet of the unit. Connect a Digital

Manometer to the test orifice. a. Enter the provider menu of the BiPAP Synchrony.b. Set the BiPAP Synchrony to the CPAP mode and the pressure to 4 cm H2O. Verify

the pressure reading and record it on the test data sheet. c. Set the BiPAP Synchrony to 20 cm H2O. Verify the pressure reading and record it on

the test data sheet.

TESTING & CALIBRATION - PAGE 11032447, REV. 00


d. Set the BiPAP Synchrony to the S mode and set the IPAP pressure to 10 cm H2O and EPAP pressure to 5 cm H2O.

e. Using your finger, occlude and unocclude the outlet and verify that the BiPAP Syn-chrony is switching between IPAP and EPAP mode on the display screen. Record results on the test data sheet.

f. Set the BiPAP Synchrony to the S/T mode and set the IPAP pressure to 10 cm H2O, EPAP pressure to 5 cm H2O, BPM to 10 and the Ti time to 2.0.

g. Verify that the BiPAP Synchrony is switching between IPAP and EPAP mode on the display screen and record the results on the test data sheet.

h. While still in the provider menu, activate the ramp mode. i. Once the BiPAP Synchrony has achieved the set IPAP and EPAP pressure, press the

ramp button.j. Observe the display and the manometer reading until the pressure increases at least

1 cm H2O in approximately 1 minute. Record results on test data sheet.

REAL-TIME CLOCK CALIBRATIONThe BiPAP Synchrony will record and track several different parameters (e.g. patient pressures, apneaevents, when and how the device is used, error codes, etc.). To do this in a logical manner and for atechnician or therapist to know exactly when a certain event has occurred, the BiPAP Synchrony runsand records events in real-time. This time is checked and compared to your computers time whenrunning the calibration software. If the time does not match, the calibration will fail. Therefore, youmust perform the real-time clock calibration before you proceed with the BiPAP Synchrony calibration.

EQUIPMENT REQUIRED

• SleepLink Interface Card w/Cable (RI p/n 1007492)

• Utility Software

PROCEDURE1. Ensure AC power is connected to the BiPAP Synchrony2. Connect the SleepLink cable to communication port (1) of your computer. Connect the

other end of the cable to the SleepLink card.3. Log onto http://servicesoftware.respironics.com.4. Click on the Respironics Utility Tools Software link. Refer to Figure A.

1032447, REV. 00TESTING & CALIBRATION - PAGE 2


:

FIGURE A: RESPIRONICS SERVICE SOFTWARE WEB PAGE

5. Click on the Download button adjacent to Service Center Tools Suite. Refer to Figure B.

:

FIGURE B: UTILITY TOOLS WEB PAGE

6. When you click on the Download button, the following window will appear:

Click Here

Click Here



:

FIGURE C: RUN OR SAVE WINDOW

7. Click on Run to install the software on your PC, or click on Save to download the software and save it to a specific location on your PC. Click Save if you wish to copy the software to a CD_ROM and install it on other PCs.

8. Once you have installed the software, open Service Center Tools from the Start menu.

NOTE

Clicking on “Run” installs the software onto your PC. The program will beaccessible from the Start menu in your Windows Task bar.

NOTE

Remember to periodically log onto http://servicesoftware.respironics.comand check the site for software updates.



:

FIGURE D: START MENU

9. Once you launch the software click on the Drop Down Menu and select “Real-Time Clock Calibration”. Refer to Figure E.

FIGURE E: DROP DOWN MENU

Click Here to Launch the Software

Drop-down Menu



10. Click the “Execute Tool” button. Refer to Figure F.

FIGURE F: EXECUTE TOOL BUTTON

11. When the program has finished, a “Success” screen will appear. Click the “OK” button.

FIGURE G: REAL-TIME CLOCK CALIBRATION COMPLETE

Execute Tool Button



BIPAP SYNCHRONY CALIBRATIONThis procedure provides remote instructions for the calibration of the BiPAP Synchrony. The results ofthis calibration can be printed to a local printer and used as a final test data sheet that can be retainedas part of the device history record.

EQUIPMENT REQUIRED

• Utility Software (http://servicesoftware.respironics.com)

• Digital Manometer (Refer to Testing Section)

• Windows® - compatible personal computer running Windows 95 or higher version soft-ware.

• Printer

• SleepLink Card with cable (RI p/n 1007492)

• Flow Meter (Refer to Testing Section)

• Flow control valve (RI p/n 1006120)

• O2 Enrichment Adapter (RI p/n 312710)

• Barometer

• Pressure Tubing

• Negative Flow Source (CPAP capable of 60 lpm)

• Smooth Bore Patient Tubing for intradevice connection

• REMstar Heated Humidifier (optional)

PROCEDURE1. Connect the RS-232 connector of the SleepLink cable to the communication port (1) of

your computer. Connect the other end to the cable to the SleepLink card. Slide the card into the SmartCard slot on the BiPAP Synchrony (the card must be inserted with the words “SleepLink” facing upwards).

2. Connect the external power supply to the BiPAP Synchrony.3. Set the BiPAP Synchrony on the Remstar Heated Humidifier and connect the AC power

cord to the Humidifier.4. Connect the O2 adapter to the outlet of the BiPAP Synchrony and occlude the adapter.

5. Connect the pressure tubing from the O2 port of the O2 adapter to the digital manometer. Refer to Figure K for setup.

6. Log onto http://servicesoftware.respironics.com.

NOTE

Remove the humidifier’s water chamber if connected. All connections must bemade to the outlet port of the BiPAP Synchrony.



7. Click on the Respironics Utility Tools Software Individual Updates link.

FIGURE H: RESPIRONICS SERVICE SOFTWARE PAGE

8. Click on the Download button adjacent to Service Center Calibration.

FIGURE I: UTILITY TOOLS SOFTWARE INDIVIDUAL PAGE

Click Here

Click Here



9. When you click on the Download button, the following window will appear:

FIGURE J: RUN OR SAVE WINDOW

10. Click on Run to install the software on your PC, or click on Save to download the software and save it to a specific location on your PC. Click Save if you wish to copy the software to a CD_ROM and install it on other PCs.

11. Once you have installed the software, open Service Center Calibration Software from the Start menu. Refer to Figure D.

12. Start the calibration by clicking on the white run time arrow in the upper left hand corner of the window.

NOTE

Clicking on “Run” installs the software onto your PC. The program will beaccessible from the Start menu in your Windows Task bar.

NOTE

Remember to periodically log onto http://servicesoftware.respironics.comand check the site for software updates.



FIGURE K: PRESSURE SETUP

FIGURE L: SYSTEM SETUP

13. The program will then prompt the user to enter the serial number. After typing in the serial number, click “OK”. The program will ask you to enter the model number. Then, click “OK”. Enter the user name and hit “ENTER” on the keyboard.

NOTE

Click the appropriate button in Figure M. You may run the Calibration Software withor without a humidifier.



14. The program will then run through a series of humidifier (optional), lighting, alarm, and dis-play tests. Follow the on screen instructions.

FIGURE M: HUMIDIFIER TEST SCREEN

15. When the prompt in Figure N appears, the program is ready to start sensor calibration. Click on the “OK” button.

FIGURE N: SYSTEM CALIBRATION

16. Observe the manometer. If the pressure is higher than 4.00 cm H2O, click on the red but-ton to decrease the blower speed. If the pressure on the manometer is lower than 4.00 cm H2O, click on the green button to increase blower speed. Each time a button is clicked, the pressure will change by approximately 0.2 cm H2O. When 4.00 cm H2O is achieved, click “DONE” on the screen.

NOTE

Let the pressures stabilize for at least one minute before making any adjustmentsduring the calibration.



FIGURE O: INCREASE/DECREASE BLOWER SPEED

17. Type in the pressure reading from the manometer and press “ENTER” on the keyboard.

FIGURE P: ENTERING MANOMETER READING

18. The program will now request calibration at several higher pressures. Perform the same procedure for the remaining different settings.

19. After the last pressure calibration is performed, the following prompt will appear, indicating the program is about to start the flow element calibration. The program will first calibrate positive flow.



FIGURE Q: FLOW ELEMENT CALIBRATION

20. Unblock the end of the O2 adapter. Connect a section of patient tubing between the O2 adapter and the inlet of the flow meter. Connect another section of patient tubing from the outlet of the flow meter to the control valve (completely open the flow valve). Click on the green “OK” button on the program window.

FIGURE R: CALIBRATION CIRCUIT



21. Observe the flow meter. If the flow is greater than 160 lpm, click on the red button to decrease the flow. If the flow is less than 150 lpm, click on the green button to increase the flow. When the BiPAP Synchrony is delivering between 150-160 lpm, click on the “DONE” button.

FIGURE S: INCREASE/DECREASE FLOW

22. Observe the flow meter and adjust the flow control valve until 146 lpm of flow is achieved. Click on the green ‘OK” button.

FIGURE T: FLOW ELEMENT CALIBRATION



23. Type in the flow reading from the flow meter and press “ENTER” on the keyboard.

FIGURE U: ENTERING THE FLOW METER READING

24. The program will now request several different flow settings decreasing in value down to and including zero flow. For each setting, raise the flow control valve to set the flow and then type in each value. After zero flow is confirmed, the following prompt will appear.

FIGURE V: ZERO FLOW CONFIRMATION

25. The program will now calibrate negative flow. Connect another section of patient tubing between the outlet of the flow control valve and the outlet of the negative flow source. Turn on the negative flow source and click on the green “OK” button.

NOTE

For the negative flow source, a REMstar device may be used with the pressure set at 20 cmH2O.



FIGURE W: SYSTEM CALIBRATION WITH NEGATIVE FLOW SOURCE

26. The program will now calibrate the negative portion of the flow table. Although the flow meter may not display a negative flow, pressure against the normal direction of flow of the device is considered a negative flow. Adjust the flow control valve until 10 lpm is dis-played on the flow meter and click “OK”.

FIGURE X: NEGATIVE FLOW VALUE DISPLAY



27. Before entering the flow value, ensure that the negative or minus symbol is typed in first. The software will reject a positive value here.

FIGURE Y: ENTERING THE NEGATIVE FLOW VALUE

28. Once again, use the flow control valve to set the negative flows that the program requests and enter the values.

29. The program has now completed calibrating the flow and pressure sensor. 30. The program will now ask for the barometric pressure reading. Using your barometer

enter the value in iniches.

FIGURE Z: ENTERING THE BAROMETRIC PRESSURE

31. Pressure and flow accuracy of the device must now be verified. The program will now read the pressure and flow parameters from the device and compare these reading to the pressure and flow values that the user will enter.

32. The program will first verify positive flows. Turn off the negative flow source and discon-nect the patient tubing from between the negative flow source and the flow valve. Com-pletely open the flow valve. Follow the prompts on the screen for the flow settings.



33. After zero flow is confirmed, the program will verify negative flow. Connect the patient tub-ing between the outlet of the flow valve and the negative flow source. Turn on the nega-tive flow source and follow the prompts.

34. After completion of the negative flow verification, pressure accuracy will be checked. Turn off the negative flow source. Disconnect the patient tubing and occlude the O2 port at the BiPAP Synchrony outlet port.

35. The program will now verify the barometirc pressure. Enter the value, in inches of mer-cury, displayed on the barometer.

36. When the pressure verification is complete, the program will request a button test for the BiPAP Synchrony. Press the buttons on the device in the order that they are numbered on the program screen.

FIGURE AA: BUTTON TEST

37. When the button test has been completed and the BiPAP Synchrony has successfully passed all tests, a green “PASS” prompt will appear on the computer screen. Click the “OK” button to view the test data sheet. Click “OK” on the print results button to print the test data sheet.

FIGURE AB: PASS SCREEN



PRINTING OF THE FINAL TEST DATA SHEET38. Sign the sheet and retain as part of a device history record. Refer toFigure AC. This com-

pletes the calibration procedure. The BiPAP Synchrony Current Draw Test must now be performed.

FIGURE AC: TEST DATA SHEET



CURRENT DRAW TESTThis procedure provides instructions for testing the current draw on the BiPAP Synchrony System.

EQUIPMENT REQUIRED

• 0.25” Test Adapter (RI p/n 332353)

• Multimeter

• Test Leads

PROCEDURE 1. Connect the adapted, spare BiPAP Synchrony Power cord to the BiPAP Synchrony Unit

and the other end to an AC outlet. Attach the Amprobe to the hot side of the adapted, spare BiPAP Synchrony Power cord.

2. Place the test adapter on the outlet of the BiPAP Synchrony. Enter the Setup menu and set the IPAP pressure to 25 cm H2O and EPAP to 25 cm H2O.

3. Turn on the BiPAP Synchrony and allow the device to stabilize for at least one minute. 4. Record the current readings from the Amprobe in the space provided on the Test Data

Sheet. Sign and date the test data sheet and retain for a device history record. This con-cludes the BiPAP Synchrony Current Draw Test.

NOTE

It is recommended to use an adapted, spare BiPAP Synchrony Power cord, inconjunction with an Amprobe for measuring the current draw of the unit. The spareBiPAP Synchrony power cord can be adapted by separating the two insulated sidesof the power cord, taking extra care NOT to remove any insulation, thus exposingthe bare wires.

Alternatively, the technician may use whichever method they are comfortable withto complete the current draw test.

NOTE

Refer to the REMstar Heated Humidifier Service Manual (Reorder Number: 1015720)for steps to perform current draw test with a heated humidifier.



BIPAP SYNCHRONY CURRENT DRAW TEST DATA SHEET

Serial No._______________

Model No._______________

Tolerance

Current Draw @ 25 cm H2O (_______)<1.25 Amps

Name (print)____________________Signature (In Ink)_________________ Date:_____/_____/____

NOTE

Attach this form to print out from BiPAP Synchrony System calibration.



PERFORMANCE VERIFICATION DATA SHEET

Serial No: ____________________________

Model Number:________________________

Line Voltage: __________________________

Blower Hours:__________________________

CPAP Mode Pressure Settings:

3b) 4 cm H2O____________(3-5 cm H2O)

3c) 20 cm H2O___________(18-22 cm H2O)

3e) Synchrony Mode Trigger Performance: Pass/Fail___________

3j) Ramp Performance Bi-Level: Pass/Fail___________

3g) S Mode Trigger Performance: Pass/Fail___________

Humidifier Testing: Pass/Fail___________

Name (print)____________________

Signature (In Ink)_________________ Date:_____/_____/____

NOTE

You should record all information on this data sheet after each test has been completed.Data sheet must then be signed in ink and dated by the technician performing the test.



TOOLS AND EQUIPMENT

SERVICE TOOLS AND SUPPLIESYou should have the following hand tools and supplies available for troubleshooting, testing, andrepairing the BiPAP Synchrony Ventilatory Support System.

• Common Hand Tools

• Flat-Blade Screwdriver - small

• Phillips Screwdriver - medium

• Antistatic, Electro-Static Discharge (ESD)-protected work station - minimum requirement is a grounded mat and wrist strap

• Windows®-compatible personal computer running Windows 95, 98, 2000, NT with a CD-ROM drive and internet access

• SleepLink Cable (RI p/n 1007492)

• Cleaning Cloth

• Digital Manometer - Refer to page 2.

• Digital Multimeter - Refer to page 2.

• Flow Meter - Refer to page 2.

• Barometer - Refer to page 3.

• Test Leads

• Isopropyl Alcohol

• Mild Detergent

• Pressure Tubing

• Test Orifice (RI p/n 332353)

• Whisper Swivel II (RI p/n 332113)

• Flow Control Valve (RI p/n 1006120) or any commercially available flow control valve.

• CPAP (for negative flow)

• O2 Enrichment Port (RI p/n 312710)

TOOLS & EQUIPMENT - PAGE 11032448, REV. 01


ACCEPTABLE TEST EQUIPMENT

DIGITAL MANOMETER

Specifications:• 0 - 45 cmH2O (or better)

• ± 0.3 cmH2O accuracy

• ± 0.1 cmH2O resolution

Acceptable Options:• Respironics Digital Manometer

• Merical DP2001

• Sensym PDM 200CD

• TSI Certifier (RI p/n 1012598)

• Any commercially available digital manometer that meets the above specifications.

• A water column manometer may also be used.

DIGITAL MULTIMETER

Specifications:• 2.5 digit readout minimum

• 0.0 - 20.0 VDC

• 0.0 - 25.0 VAC

Acceptable Options:• Fluke 83 or better model

• any commercially available multimeter that meets the above specifications.

FLOW METER

Specifications:• Range: +180 to -180 LPM

• ± 2% Accuracy

• ± 1 LPM Resolution

Acceptable Options:• Certifier (RI p/n 1012598)

• TSI 4000 Series Flow Meter

• Time Meter RT-200

• Any commercially available flowmeter that meets the above specifications.

1032448, REV. 01TOOLS & EQUIPMENT - PAGE 2


BAROMETER

Specifications:• Range: 83-102 kPa

Acceptable Options:• Any commercially available barometer that meets the above specifications.

TOOLS & EQUIPMENT - PAGE 31032448, REV. 01



1032448, REV. 01TOOLS & EQUIPMENT - PAGE 4


SCHEMATICS

SCHEMATICS STATEMENTSchematics are supplied with this manual in direct support of the sale and purchase of this product.

The schematics are proprietary and confidential. Do not copy the schematics or disclose themto third parties beyond the purpose for which they are intended. Patents are pending.

The schematics are intended to satisfy administrative requirements only. They are not intended to beused for component level testing and repair. Any changes of components could effect the reliability ofthe device, prohibit lot tracking of electronic components, and void warranties. Repairs and testing aresupported only at the complete board level.

The schematics are of the revision level in effect at the time this manual was last revised. Newrevisions may or may not be distributed in the future.

SCHEMATICS - PAGE 11032449, REV. 01


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1032449, REV. 01SCHEMATICS - PAGE 2


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A13

6C

E

9I/O

3

8I/O

2

37

I/O

15

36

I/O

14

29

I/O

9

16

I/O

8

11

VC

C

CY7

C1

02

1BV

33

-12

U5

25

A0

24

A1

23

A2

22

A3

21

A4

20

A5

19

A6

18

A7

8A

87

A9

6A

10

5A

11

4A

12

3A

13

2A

14

1A

15

48

A16

17

A17

12

RP

11

W

28

G

26

E

47

BYT

E

37

VC

C

46

VSS

27

VSS

29

DQ

03

1D

Q1

33

DQ

23

5D

Q3

38

DQ

44

0D

Q5

42

DQ

64

4D

Q7

30

DQ

83

2D

Q9

34

DQ

10

36

DQ

11

39

DQ

12

41

DQ

13

43

DQ

14

45

DQ

15

-A

13

NC

15

RB

U4

M2

9W

40

0BB

-70

N1

R48

33

.2

A1:A

19

MIC

RO

,FLA

SH

& D

EB

UG

CO

NN

EC

TOR

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

12

A5

11

A4

10

A3

9A

2

7A

O/N

LB

39

D4

38

D3

37

D2

36

D1

35

D0

40

D5

8A

1

13

5N

CS

41

36

NC

S5

13

7N

CS

61

38

NC

S7

3N

CS

04

NC

S1

5N

CS

26

NC

S3

17

4N

WR

1/N

UB

17

1N

WA

IT

17

2N

RD

/NO

E1

73

NW

R0/

NW

E

17

A8

14

A7

13

A6

34

A23

33

A22

32

A21

31

A20

28

A19

27

A18

26

A17

25

A16

24

A15

23

A14

22

A13

21

A12

20

A11

19

A10

18

A9

47

D8

42

D7

41

D6

54

D15

53

D14

52

D13

51

D12

50

D11

49

D10

48

D9

U2:C

AT9

1M

55

80

0-3

3A

I

D0:D

15



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DR

N B

Y:

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S:

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DR

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NO

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SH

EE

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*

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2

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2

SCL

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+3

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D

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30

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DG

ND

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*

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GN

D

GN

D

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12100pf

FL8

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V

GN

D

+5

V

GN

D

N/A

GN

D

R162

1.50K

10

29

67

7

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+3

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3

TXD

1

SDA

RXD

1

3 8

R52 R54

**R118

*

R156

ZERO

GN

D

R157

10.0K

+3

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+5

V

*

GN

D

R117

+5

V

GN

D

GN

D

550pF

FL4

GN

D

GN

D

R21

10.0K

12100pf

FL7

R116

*

GN

D+3

.3V

R163

10.0K

R161

10.0K

R51

10.0K 550pF

FL3

PP

4

PP

2

PP

1

SCL_

DIS

PL

AY

SDA

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AY

PP

6

PP

5

NO

PIN

4 IN

CO

NN

EC

TOR

SCH

EM

AT

IC

+3

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P3

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10.0K

+3

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+3

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GN

D

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C28

GN

D

PP

7

.1uF

C53

U14

+5

V

8J

4:H

7J

4:G

6J

4:F

3J

4:C

5J

4:E

2J

4:B

4J

4:D

S2

J3:

J

S1

J3:

I

4J1

0:D

*

3J1

0:C

*2

J1

0:B

C6

J3:

F

1J1

0:A

*C

4J

3:D

C3

J3:

C

2J

1:B *

C2

J3:

B

1J

1:A

SM

AR

T C

AR

D

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

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LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

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ENT

GN

D

GN

D

550pF

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SM

AR

T_

DET

EC

T

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MM

BT

39

04

LT1

GN

D

R160

1.50K

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C27

+3

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S1

02

96

77G

ND

4

12

MM

74

VH

C1

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32(3

=G

ND

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V)

U31

REM

OT

E_

AL

AR

M

REM

OT

E_

AL

AR

M_

2

C29

*

1

23

BS

S1

23

LT1

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4:A

MIN

IDIN

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H

C7

J3:

G

3J

1:C

4J

1:D**

C5

J3:

E

C1

J3:

A

550pF

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GN

D

550pF

FL5

4

12

MM

74

VH

C1

GT

32(3

=G

ND

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+5

V)

U19

Q31

MM

BT

39

04

LT1

4

12 MM

74

VH

C1

GT

32(3

=G

ND

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)

U32

LC

D_

BA

CK

LIG

HT

NO

TE:

NO

CO

PP

ERU

ND

ER

CO

NN

EC

TOR

DIG

ITAL

& S

MA

RT

CA

RD

CO

NN

EC

TOR

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

27

00

OH

MS

@ 1

00

MH

Z

E5

27

00

OH

MS

@ 1

00

MH

Z

E4

27

00

OH

MS

@ 1

00

MH

Z

E2

27

00

OH

MS

@ 1

00

MH

Z

E12

27

00

OH

MS

@ 1

00

MH

Z

E9

27

00

OH

MS

@ 1

00

MH

Z

E3

1S

DA

2S

CL

3S

YN

C4

CLK

5V

DD

6O

SC

7A

08

A1

9A

21

0S

A01

1V

SS

12

VLC

D1

3B

P0

14

BP2

15

BP1

16

BP3

17

S0

18

S1

19

S2

20

S3

21

S4

22

S5

23

S6

24

S7

25

S8

26

S9

28

S11

27

S10

29

S12

30

S13

31

S14

32

S15

33

S16

34

S17

35

S18

36

S19

37

S20

38

S21

39

S22

40

S23

PC

F85

66

T

U6

27

00

OH

MS

@ 1

00

MH

Z

E16

27

00

OH

MS

@ 1

00

MH

Z

E15

27

00

OH

MS

@ 1

00

MH

Z

E11

27

00

OH

MS

@ 1

00

MH

Z

E10

60

OH

MS

@ 1

00

MH

Z

E18

60

OH

MS

@ 1

00

MH

Z

E17

4

12 MM

74

VH

C1

GT

32(3

=G

ND

,5=

+3

.3V

)

U14

Q30

MM

BT

39

04

LT1

1S

DA

2S

CL

3S

YN

C4

CLK

5V

DD

6O

SC

7A

08

A1

9A

21

0S

A01

1V

SS

12

VLC

D1

3B

P0

14

BP2

15

BP1

16

BP3

17

S0

18

S1

19

S2

20

S3

21

S4

22

S5

23

S6

24

S7

25

S8

26

S9

28

S11

27

S10

29

S12

30

S13

31

S14

32

S15

33

S16

34

S17

35

S18

36

S19

37

S20

38

S21

39

S22

40

S23

PC

F85

66

T

U15

24

S24

21

S21

18

S18

15

S15

12

S12

9S

9

6S

6

3S

3

30

S26

33

S29

36

S32

39

S35

42

S38

45

S41

48

S44

25

S25

19

S19

20

S20

13

S13

14

S14

7S

78

S8

1S

12

S2

31

S27

32

S28

37

S33

38

S34

43

S39

44

S40

49

S45

50

K

51

A

22

S22

23

S23

4S

45

S5

10

S10

11

S11

16

S16

17

S17

34

S30

35

S31

40

S36

41

S37

46

S42

47

S43

27

CO

M2

26

CO

M1

28

CO

M3

29

CO

M4

DLD

-05

00

7

DS

1



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PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

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:

PR

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S:

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E

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DR

AW

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DP

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SH

EE

TO

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.

AP

PR

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DR

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CHK

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PR

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UC

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E

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LE

DR

AW

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NO

.

DP

AR

T N

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SH

EE

TO

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NR

ST

FAU

LTR

17

6

10

0K

GN

D

GN

D

GN

D

.01uF

C108

GN

D

.1uF

C135

R64

47

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R61

1.00K

R65

47

.5K

R97

10.0K

GN

D

R95

10.0K

R62

1.00K

VBU

LK_M

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GN

D

R80

10.0K

R66

47

.5K

GN

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C43

10uF

25

V+1

2V

R81

34

KR63

1.00K

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.1uF

PP

14

R75

1.8

2K

PP

13

PP

12

GN

D

R72

1.7

4K

PH

3

GN

D

R89

10

M

GN

D

N/A

10

29

67

7

BR

AK

E

4

3 8

R214

499K1

3

2

Q38

IRF

R5

30

5R94

10.0K

GN

DG

ND

R88

10.0KGN

D

2700 OHMS@ 100 MHZ

E1

GN

D

2700 OHMS@ 100 MHZ

E6

+1

2V

GN

D

2700 OHMS@ 100 MHZ

E7

R74

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C33

22

0pF.1uF

C31

GN

D

R84

12

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C38

GN

D

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T_

DAC

SCH

EM

AT

IC

***

MO

TO

R_C

UR

REN

T

TAC

H

+3

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R85

1.0

0K

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C39

27

00

OH

MS

@ 1

00

MH

Z

E22

MM

BT

39

04

LT1

Q39

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1.00M

R175

10.0KV

BU

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7

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12

V)

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B

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02

1.0

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GN

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GN

D

VBU

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R1

04

1.0

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1

GN

D

GN

D

ISE

NS

E

27

00

OH

MS

@ 1

00

MH

Z

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12

1.0

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VBU

LK_M

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R92

80

.6K

+

25

V2

.2uF

C40

C42

330

0pF

R86

4.7

5K

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C36

PH

2

R82

12

.1K

+1

2V

GN

D

R70

10

0K

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

5C

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LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

EM

ENT

R93

10

.0K

+3

.3V

GN

D

GN

D

C109

S1

02

96

77

MO

TO

R C

ON

TR

OL

LER

1C

ON

N M

3 P

IN 1

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J5:

A

2C

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3 P

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00

J5:

B

3C

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00

J5:

CR98

10.0K

CR25

LLSD103

GN

D

R87

10

.0K

+1

2V

MM

BT

39

04

LT1

Q4

56

OH

MS

@ 1

00

MH

Z

E24

15

14

MC

14

05

0BD

(8=

GN

D,1

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12

V)

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F

R91

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12

11

MC

14

05

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12

V)

U8:

E

10

9

MC

14

05

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12

V)

U8:D

67

MC

14

05

0BD

U8:C

(8=

GN

D,1

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12

V)

27

00

OH

MS

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00

MH

Z

E13

R71

0.222W

+1

2V

MM

BT

39

04

LT1

Q5

GN

D

C35

10

00

pF

R76

10.0K

1

32

IRF

R2

40

5Q

20

MM

BT

39

04

LT1

Q6

R78

14

0K

+

C37

2.2

uF

25

V

R83

12

.1K

GN

D

R73

1.00K

3 2

1

LM

35

8A

U7:

A

(4=

GN

D,

8=+

12

V)

GN

D

1

23

BSS

12

3LT

1

Q10

4.99K

R90

C111GN

D

C110

R77

10.0K

1

3 2

IRF

R9

02

4Q

21

R79

10M

23

MC

14

05

0BD

U8:

A

(8=

GN

D,1

=+

12

V)

27

00

OH

MS

@ 1

00

MH

Z

E8

+

50

V1

20

0uF

C20

VBU

LK_M

OT

VBU

LK_M

OT

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

Q11

MM

BT

39

04

LT1

1

3 2

IRF

R9

02

4Q

8

1

3 2

IRF

R9

02

4Q

14

PH

1

45

U8:

BM

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40

50

BD

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GN

D,1

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12

V)

1

32

IRF

R2

40

5Q

9

1

32

IRF

R2

40

5Q

7

11

N3

14

VC

C

13

VC

O

10

N2

9N

1

8V

SP

EE

D

7V

RE

F

6C

OS

C

5R

CP

WM

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3

3P

2

2P

1

1IS

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E

12

ILIM

IT

15

CVC

O

16

RVC

O

17

CR

ST

26

CO

S

27

RR

EF

28

GN

D

21

CRA

MP

20

RCV

CO

19

CEN

22

PH

1

23

PH

2

24

PH

3

25

BR

AK

E

18

VFL

T

ML44

25

U9

PH

3

PH

2

PH

1



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PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

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:

PR

OC

ES

S:

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LE:

SIZ

E

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LE

DR

AW

ING

NO

.

DP

AR

T N

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SH

EE

TO

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.

AP

PR

BY:

DR

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CHK

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OD

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:

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LE:

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E

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LE

DR

AW

ING

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.

DP

AR

T N

O.

SH

EE

TO

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.

*

GN

D

*

GN

D

GN

D

*

GN

D

+1

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D

*

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D

+1

2V

GN

D

*

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C95

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*

GN

DG

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34

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uF

C47

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GN

D

GN

D

R2

17

93

1

GN

D

R219

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V

+1

2V

R103

24.9K

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ND

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+5

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C91

U29

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V

-12

V

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C86

GN

D

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8.2

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V

+1

2V

GN

D

R207

200K

R69

20

0K

R59

1.0

0K

R2

28

1.0

0K

N/A

P_A

TM

10

29

67

75

3 8

*

GN

D

GN

D

GN

D

GN

D

R201

1.00KC1

14

.1uF

GN

D

R221

+1

2V

.1uF

C128

*

**

R108

24.9K

.1uF

C127

GN

D

GN

D GN

D

GN

DG

ND

GN

D

GN

D

R1

10

10

.0K

GN

D

.01

uF

C46

SCH

EM

AT

IC

MO

SI

MIS

O

NP

CS0

MA

SS

FLO

W

C94

*

+5

V

PR

ES

SUR

EB

LOW

ER

R1

84

9.0

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30

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15

1.0

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32

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V

PR

ES

SUR

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UT

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C1

26

R99

1.0

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1.8

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4.2

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23

GN

DR2

16

48

7

*

.1uF

C90

.1uF

C89

U26

GN

D

+5

VR1

09

3.9

2K

.1uF

C51

.01

uF

C49

GN

D

R1

01

9.0

9K

.1uF

C87

R2

13

10

.0K

BAR

OM

ET

RIC

GN

D

.1uF

C54

+

16

V1

0uF

C1

16

GN

D

GN

D

+5

V

5 6

7U

25

:B

OP

A4

23

4

(4=

+1

2V

, 1

1=-1

2V

)

R67

10

.0K

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

5C

.HA

LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

EM

ENT

GN

D

GN

D

SCK

GN

D

GN

D

S1

02

96

77

GN

D

R2

24

R1

26

1.0

0K

.1uF

C1

33

1-S

O

2-V

3+S

O

4+V

MT

3

SM

56

52

R1

00

1.0

0K

GN

D

R2

18

2V

S

4V

OU

T

3G

ND

1N

C

MT

5

1-S

O

2-V

3+S

O

4+V

MT

4

SM

56

52

.1uF

C1

15

.01

uF

C1

25

5 6

7

(4=

GN

D,

8=+

5V

)

U1

0:B

.1uF

C131

.1uF

C129

1-I

NA

2+IN

A

3R

GA

4R

GA

5R

EFA

6V

OA

7S

EN

SE

A

8V

-9

V+

10

SEN

SE

B

11

VO

B

12

REF

B

13

RG

B

14

RG

B

15

+IN

B

16

-IN

B

U28

INA

21

26

UA

R2

20

3 2

1

(4=

GN

D,

8=+

5V

)

U1

0:A*

.01

uF

C52

GN

D

R1

05

3.9

2K

R212

1.00K

GN

D

5 6

7

(4=

GN

D,

8=+

12

V)

LM

35

8A

U1

3:B

3 2

1U

25

:A

OP

A4

23

4

(4=

+1

2V

, 1

1=-1

2V

)

+1

2V

.1uF

C48

5D

IN

8V

CC

7C

LK

4V

SS

3C

H1

6D

OU

T

1C

S/S

HD

N

2C

H0 MC

P3

20

2BI/S

N

U1110 9

8U

25

:C

(4=

+1

2V

, 1

1=-1

2V

)

OP

A4

23

4

R68

10

.0K

4

12 MM

74

VH

C1

GT

32(3

=G

ND

,5=

+3

.3V

)

U26

4

12

MM

74

VH

C1

GT

32(3

=G

ND

,5=

+5

V)

U29

4

12

MM

74

VH

C1

GT

32(3

=G

ND

,5=

+5

V)

U33

12

13

14

OP

A4

23

4

U2

5:D

(4=

+1

2V

, 1

1=-1

2V

)

.1uF

C139

741 5 6 82 3

AIR

FLO

W S

EN

SO

R

MT

2

2V

S

4V

OU

T

3G

ND

1N

C

MT

1

3 2

1U

13

:A

(4=

GN

D,

8=+

12

V)

1R

G

2V

IN-

3V

IN+

4V

-5

REF

6V

OU

T

7V

+

8R

G

INA

12

6U

U20

4

12

MM

74

VH

C1

GT

32(3

=G

ND

,5=

+5

V)

U21

FLO

W_

OF

FSE

T

PR

ES

S_B

LOW

ER

ME

AS

UR

ED

_PR

ES

S

1

2

3

BAT54S

CR12

PR

ES

SUR

E &

FLO

W S

EN

SO

RS

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

FLO

W

3+V

1-V

2V

O+

4V

O-

MT

6

CP

C15

AH



AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

*

+3

.3V

R115

100K

GN

D

+6

V

GN

D

GN

D

+3

.3V

R1

65

10

0K

GN

D

GN

D

+5

V

+3

.3V

*** *

10

uF

C55

R1

25

1.0

0M

+3

.3V

*TP9

*

GN

D

+6

V

GN

D

*

GN

D

R226

249K

R121

1.00M

GN

DGN

D

+6

V

+5

V

R164

100K

GN

D

BU

ZZ

ER

N/A

10

29

67

76

3 8

+5

V

R171

10.0K

R34

37.4K

R206

200K

R202

15.0K

R204

100K

CR

28

LL

SD

10

3

R169

10.0K

R170

10.0K

R205

10.0K*G

ND

GN

D

2.2

uF

C22R168

10.0K

*R123

200K

1 2

LS

1

GN

D

+3

.3V

+6

V

GN

D

*

R114

BU

ZZ

ER

ON

/OF

F

TES

T_C

AP

PF_

SIG

NA

L

SCH

EM

AT

IC

PF_

SIG

NA

L

CAP

_STA

TU

S

BU

ZZ

ER

_SLE

EP

GN

D

CR

26

LL

SD

10

3

6S

W1

6B

:F

4S

W1

6B

:D

5S

W1

6B

:E

GN

D

2S

W1

6B

:B

1S

W1

6B

:A

+C

57

1.5

F

R1

72

10

0K

GN

D

*

R2

10

+1

2V

GN

D

R1

22

1.0

0M

2.2

uF

C93

+6

V

22

uH

L1

+1

2V

5 6

7

(4=

GN

D,

8=+

3.3

V)

LM

29

03

U3

0:B

+5

V

R111

10.0K

+1

uF

50

V

C1

38

GN

D

1

23

BS

S1

23

LT1

Q24

+5

V

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

5C

.HA

LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

EM

ENT

ALA

RM

_V

OL

TA

GE

S1

02

96

77

BU

ZZ

ER

CIR

CU

ITR

Y

1

2

3

Q36

BS

S8

4LT

1

CR

16

LL

SD

10

3

3S

W1

6B

:C

R209

Q33

R124

200K

1

23

Q25

BS

S12

3L

T1

2

GN

D

5V

IN1

SW

4S

HD

N3

FB

LT1

61

5ES

5-1

U34

GN

D

1

23

BS

S1

23

LT1

Q28

+6

V

1

2 3

BS

S8

4LT

1Q

13

3 2

1

(4=

GN

D,

8=+

3.3

V)

LM

29

03

U3

0:A

1

23

Q23

BS

S1

23

LT1

1

23

Q34

BS

S12

3L

T1

1

23

BS

S12

3LT

1Q

37

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

2C

ON

N M

2 P

IN M

ICRO

FIT

3.0

J6:

B

1

23

Q26

BS

S1

23

LT1

2 5

1 3 4 6

SW

16

SW

ITC

HP

US

HB

UT

TON

LAT

CH

ING

DP

DT

CR

30

LL

SD

10

3

8V

+

3-I

N

2+IN

4V

-5

BAL

6B

AL

/STB

1G

ND

7O

UT

LM

31

1M

U27

CR

29

B1

40

1C

ON

N M

2 P

IN M

ICRO

FIT

3.0

J6:

A



AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE

:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE

:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

* *

*

BAT

TER

Y_

BU

VBA

TT

GN

D

+

25

V1

0uF

C83

+5

VGN

D

VBU

LK

C120

GN

DGN

D

*R

18

9

GN

D

+

25

V1

0uF

C84

+3

.3V

*

GN

D

VBU

LK

GN

D

GN

D

GN

D

.1uF

C80

CR

6

B1

60

GN

D+

35

V3

30

uFC

79

+5

V

-12

V

GN

D

TP2

TP4

TP5

+5

VT

P6

+1

2V

TP7

VBU

LK

GN

D

GN

D

+3

.3V

GN

D

12

CR7

SMBJ36CA

VBU

LK

GN

D

GN

D

GN

D

GN

D

GN

D

GN

D

.1uF

C69

.1uF

C67

.1uF

C63

.1uF

C60

.1uF

C65

.1uF

C61

+3

.3V

PO

WE

R 1

N/A

10

29

67

77

3 8

+

50

V1

80

uFC

45

GN

DGN

D

1uF

C81

R1

90

1.5

4K**

.1uF

C76

GN

D.1uF

C77 R1

87

ZE

RO

GN

D

R188R208

CR9

MBRS340T3

.01

uF

C78

CR27

P6SMB6.8AT3

**

**

**

.1uF

C72

.1uF

C66

GN

D

PO

WE

R 2

1000pF

C75

*

SCH

EM

AT

IC

AN

ALO

G_

SW

ITC

HE

R

VBU

LK

GN

D

+1

2V

INO

UT

GN

D

LM

78

12

CT

U18

*

U17

(3=

GN

D,5

=+

5V

)

R1

86

24

02

W

TP1

TP3

GN

DG

ND

+3

.3V

TP8

+3

.3V

.1uF

C70

.1uF

C59

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

5C

.HA

LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

EM

ENT

+3

.3V

R1

20

10

0

R1

19

ZE

RO

GN

D

GN

D

GN

D

+3

.3V

S1

02

96

77

INO

UT

OU

TG

ND

TAB

LM

11

17

MP

X-3

.3U

12

.1uF

C82GN

D

2IN

PU

T

7O

N/O

FF

5N

C

8

GN

D

1S

W_

OU

TP

UT

3C

_BO

OST

6F

B

4GN

D

LM

26

76

S-5

.0U

16

GN

D*

+

25

V

C1

19

10

00

uFCR21

B160

*

.1uF

C68

.1uF

C73.1uF

C71

.1uF

C64

.1uF

C62

56

OH

MS

@ 1

00

MH

Z

E19

5

CG

6

CG

4C

G

2C

B

3P

SG

1B

E23

BN

X0

02

-01

GN

D

GN

D

27

00

OH

MS

@ 1

00

MH

Z

E20

11

5

6

22

33

4

J7

CO

NN

F 3

PIN

JAC

KS

HIE

LD

ED

BAR

REL

& H

OU

SIN

G R

A

11

5

6

22

33

4

J8

CO

NN

F 3

PIN

JAC

KS

HIE

LD

ED

BAR

REL

& H

OU

SIN

G R

A

3

12

CR

22

.1uF

C74

39

0 O

HM

S@

10

0 M

HZ

E25

DC

INP

UT

,REG

UL

AT

OR

S &

MIC

RO

DE

CO

UP

LIN

G

SYN

CH

RO

NY

REP

LAC

EM

ENT

IN

TER

NA

TIO

NA

L

R1

98

CR

14

MB

R7

60

R1

97

BSS

13

8LT

1

Q18

12

47

UH

L2

CR

13

MB

R7

60

89

GN

D9

0G

ND

10

2V

DD

IO

10

3G

ND

10

7G

ND

PL

L

10

4V

DD

PL

L

11

6G

ND

BU

11

3T

ES

T

88

VD

DIO

10

9V

DD

BU

87

VD

DC

OR

E

73

VD

DIO

74

GN

D

44

VD

DIO

45

GN

D4

6G

ND

59

VD

DIO

29

VD

DIO

30

GN

D

43

VD

DC

OR

E

60

GN

D

15

VD

DIO

16

GN

D

17

6V

DD

IO

2G

ND

17

5V

DD

CO

RE

1G

ND

13

4G

ND

13

3G

ND

13

2V

DD

IO

13

1V

DD

CO

RE

16

2G

ND

16

1V

DD

IO

14

8G

ND

14

7V

DD

IO

AT9

1M

55

80

0-3

3A

I

U2:A



AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

AP

PR

BY:

DR

N B

Y:

CHK

BY:

PR

OD

UC

T L

INE

:

PR

OC

ES

S:

TIT

LE:

SIZ

E

SCA

LE

DR

AW

ING

NO

.

DP

AR

T N

O.

SH

EE

TO

FREV

.

GN

D

R2

25

ZE

RO

*

C137

GN

D

R1

32

10

0K

R1

44

2K

+5

V

GN

D

R1

52

10

.0K

GN

D

GN

D

GN

D

.1uF

C104+1

2V

.1uF

C1

00

C97

10

pF

1uF

C5010

.0K

R1

53

R1

38

10

.0K

GN

D

.1uF

C106

1uF

C118

1uF

C121

-12

V

GN

D

+5

V

GN

D

47.5K

R154+5

V

N/A

10

29

67

78

3 8

R147

10.0K

GN

D

R139

100K

GN

DG

ND

R1

51

4.9

9K*

R1

13

R1

43

10

0K

R1

33

10

.0K

R1

50

49

.9K

10

.0K

R1

45

GN

D

R1

40

10

.0K

GN

D

R1

42

10

.0K

R1

48

10

.0K

.01uF

C102

VAL

VE

_D

AC

DIT

HE

R

SCH

EM

AT

IC

VAL

VE

_IN

T

4.9

9K

R1

46

ME

AS

UR

ED

_PR

ES

SR

13

5

10

0K

10

0K

R1

37

.1uF

C105

.1uF

C103

1uF

C117

+5

V*R

18

2.1uF

C98

R1

36

15

.0K

R1

31

10

.0K

.1uF

C107

R1

34

10

.0K

+5

V

2.2uF

C101

EDM

S

EDM

S

EDM

S

EDM

S

10

-5-0

5C

.HA

LL

WIR

TH

SYN

CH

RO

NY

REP

LAC

EM

ENT

GN

D2

CO

NN

M2

PIN

MIC

RO

FIT

3.0

J9:

B2

.2uF

C99

S1

02

96

77

R183

ZERO

12

13

14

LM

32

4A

(4=

+1

2V

, 1

1=-1

2V

)

U2

3:D

109

8

(4=

+1

2V

, 1

1=-1

2V

)

LM

32

4A

U2

3:C

R1

49

10

0K

56

7U

23

:B LM

32

4A

(4=

+1

2V

, 1

1=-1

2V

)

.1uF

C96

R1

41

10

.0K

109

8U

22

:C LM

32

4A

(4=

+1

2V

, 1

1=-1

2V

)

GN

D

1J

9:A

CO

NN

M2

PIN

MIC

RO

FIT

3.0

32

1

LM

32

4A

U2

2:A

(4=

+1

2V

, 1

1=-1

2V

)

56

7

(4=

+1

2V

, 1

1=-1

2V

)

LM

32

4A

U2

2:B

1

2

3

CR

17

BAT

54

S

2B

YP

ASS

3+IN

4-I

N

6V

DD

5V

O1

8V

O2

7G

ND

1S

HU

TD

OW

N

U24

LM

48

71

M

VAL

VE

_SHU

TD

OW

N

AN

ALO

G &

DIG

ITAL

VAL

VE

SYN

CH

RO

NY

REP

LAC

EM

ENT

INT

ER

NA

TIO

NA

L

AN

ALO

GV

AL

VE

12

13

14

U2

2:D L

M3

24

A

(4=

+1

2V

, 1

1=-1

2V

)

3 2

1U

23

:A LM

32

4A

(4=

+1

2V

, 1

1=-1

2V

)


1032446, rev 00BRM 01/15/2006

Reorder: 1031896

BiPAP® Synchrony

Service & Technical

Information

BiPAP® Synchrony Service & Technical Information

Documents

Transcript of BiPAP® Synchrony Service & Technical Information