Welch Allyn CS - Manuals

1 1 Safety summary Warnings This Safety Summary should be read by all Propaq CS monitor users. Specific warnings and cautions are placed throughout the documentation where they apply. Caution: Federal (U.S.A.) law restricts this device to sale, distribution, or use by or on the order of a licensed m...

2 Safety summary Welch Allyn Propaq CS Vital Signs Monitor • To ensure conformance to risk (leakage) current requirements when operating from an ac mains power source, use only a Welch Allyn’s 503-0054 series power adapter. • To ensure patient safety, use only accessories recommended or supplied by ...

Service Manual Safety summary 3 • While under warranty, the monitor should be serviced only by a Welch Allyn service technician. Definitions Symbols The following symbols may appear on the Propaq CS monitor or accessories. They are defined by the International Electrotechnical Commission, IEC 878 an...

2 5 Overview Purpose and scope The Propaq CS Service Manual is intended as a reference for monitor maintenance and repair to the field-replaceable unit (FRU) level ( “Field Replaceable Units (FRUs)” on page 129). This manual provides the technically qualified ser vice person with troubleshooting inf...

6 Overview Welch Allyn Propaq CS Vital Signs Monitor Warranty service DO NOT ATTEMPT TO REPAIR the monitor yourself during the warranty period. For service and repair, contact Welch Allyn. See below. Technical support services Welch Allyn offers a wide range of technical support services including: ...

Service Manual Overview 7 Identifying Propaq CS Monitor configurations The following tables identify Propaq CS monitor configurations and how they are indicated. The model-option number and serial number are located on the back of the housing. The monitor indicators are located under the handle on t...

8 Overview Welch Allyn Propaq CS Vital Signs Monitor Table 2. Expansion module option configurations Option number Printer Mainstream CO 2 Sidestream CO 2 SpO 2 Top level assembly number 221 Yes No No N/A 007-0046-XX 222 No No No Nellcor MP-203 007-0050-XX 223 Yes No No Nellcor MP-203 007-0047-XX 22...

Service Manual Overview 9 Identifying the Acuity Communication options Monitor controls Self test and service menus The Propaq CS monitor includes built-in self-tests that verify the integrity of its hardware and software each time you turn it on. If the monitor turns on and displays the Main Menu, ...

10 Overview Welch Allyn Propaq CS Vital Signs Monitor The Propaq CS monitor contains software routines that make the Functional Verification and Calibration procedures quicker and easier. You access these routines through the Service Menus as indicated in each of the procedures. The figure below sho...

Service Manual Overview 11 Service test screens There are two Acuity Wireless options available: 1. 2.4 GHz radio card (002-0150-00) 2. 5 GHz radio card (002-0160-00) The following service screens illustrate the 2.4 GHz radio card and the 5 GHz radio card diagnostic information. Network Status scree...

12 Overview Welch Allyn Propaq CS Vital Signs Monitor Network Monitor screen (2.4 GHz radio card) To access this screen, from the Network Status screen press NETORK MONITOR . (Or from the Main Menu, press SETUP > MORE > MORE > SERVICE > YES > MORE > MORE > RADIO STATUS > NETW...

3 13 Functional verification Introduction This functional verification procedure helps to confirm the proper operation of the Propaq CS monitor and options. This procedure supports the requirements of routine preventive maintenance. No monitor disassembly is required to perform this procedure. “Cali...

14 Functional verification Welch Allyn Propaq CS Vital Signs Monitor Required equipment You will need the following equipment to verify that all functions of the monitor operate correctly. All test equipment must be calibrated to function within parameters specified by the manufacturer, and must be ...

Service Manual Functional verification 15 Safety tests The following two safety tests, a risk (leakage) current safety check and a dielectric strength integrity (hi-pot) test, must be performed whenever the monitor has been opened for calibration or repair. Risk (leakage) current test A risk (leakag...

16 Functional verification Welch Allyn Propaq CS Vital Signs Monitor Dielectric strength (Hi-Pot) test Because of the close spacings of the monitor's internal components and the critical positioning of the insulation sheet within the monitor, Welch Allyn recommends that a dielectric strength test be...

Service Manual Functional verification 17 Functional verification Perform the functional verification with the monitor fully assembled. If the monitor has been stored for longer than one month without the monitor connected to the ac adapter (for recharging), the battery voltage must be checked. The ...

18 Functional verification Welch Allyn Propaq CS Vital Signs Monitor dc power accessory cable 10. Turn on the dc power supply. 11. Check that the green LED indicator lights up. 12. Switch the dc power supply meter to current and check that the current draw from the supply is less than 1.8 A. 13. Var...

Service Manual Functional verification 19 System tests The following procedures check that the buttons operate properly, that the display works correctly, and that the date is correctly displayed. 1. Turn on the monitor. 2. Verify that no error messages appear and the monitor correctly powers up. 3....

20 Functional verification Welch Allyn Propaq CS Vital Signs Monitor 15. Press ECG/RESP > MORE . Then press CHANGE to select the four HR/PR TONE levels. Verify that the tone volume changes and goes off when turned OFF. Set the volume to LOW or OFF. 16. Press HOME to return to the Main Menu. 17. S...

Service Manual Functional verification 21 If incorrect, press NEXT and UP or DOWN to select and change the time and date. Then enter the new setting by pressing the ENTER key. 20. Turn off the monitor. ECG/RESP Channel and Alarm Indicators The following procedures verify the ECG channel and the alar...

22 Functional verification Welch Allyn Propaq CS Vital Signs Monitor • Audible vital signs alarms (software versions 3.6x and greater) : OFF ( SETUP > MORE > MORE > SERVICE > YES > MORE > MORE > SETTINGS > ALL ALARM > YES . The ALARM light will turn on, indicating that the...

Service Manual Functional verification 23 15. Press HOME > SETUP > ALARMS > STAT SET to automatically set heart and respiration rate alarm limits. 16. Check that the ALARM(S) OFF light is off. 17. Set the patient simulator heart rate to 180 bpm or higher. 18. Check that an alarm violation o...

24 Functional verification Welch Allyn Propaq CS Vital Signs Monitor 8. Move the wire and scope probe from the ECG pin of the ECG X1000 connector to the DEFIB SYNC connector pin shown in the figure below or use Defib Sync Output cable, 008-0237-00. Leave the scope’s ground clip where it is. defib sy...

Service Manual Functional verification 25 1. Press SETUP > WAVE SELECT and check that the P1 and P2 waveforms are turned on. 2. Connect the IBP cable from the patient simulator to an IBP input jack on the left side panel of the monitor. 3. Set the simulator output pressure to 0 mm Hg. 4. Zero P1 ...

26 Functional verification Welch Allyn Propaq CS Vital Signs Monitor nibp test screen 7. Manually reduce the pressure as indicated on the pressure meter to each of the levels shown in the following table, and check the displayed value of PR1 to be within the tolerance listed in the following table. ...

Service Manual Functional verification 27 Temperature 1. Plug a 37.0 ° C YSI 400 series (two conductor) calibrated temperature probe simulator into the T1 jack on the monitor’s left side panel. 2. Check that the T1 temperature is 37 ° ± 0.1 ° C. 3. Repeat Steps 1 and 2 for T2. 4. Plug a 37 ° C YSI 7...

28 Functional verification Welch Allyn Propaq CS Vital Signs Monitor • Masimo-compatible SpO 2 cable. • Compatible adult SpO 2 sensor for finger. • BIO-TEK Index 2 Series SpO 2 Simulator with optical finger for sensor connection (or equivalent). 1. Turn on power to the SpO 2 simulator. 2. Connect th...

Service Manual Functional verification 29 “Expansion module option configurations” on page 8. The following table shows how to identify compatible sensors for each Nellcor option: Printer tests The following steps check the functionality of the printer. 1. Disconnect all cables from the monitor. 2. ...

30 Functional verification Welch Allyn Propaq CS Vital Signs Monitor 18. Close the paper door and set the monitor upright. 19. Simultaneously press the PRINT TRENDS and START/STOP buttons. 20. Check that a test printout similar to one shown in the figure below is printed. CO 2 verification preparati...

Service Manual Functional verification 31 b. The reported ATIS is 30.09 inches Hg. (Altimeter: three zero zero niner.) c. Multiply the LUP (632.35) by the ATIS (30.09) times 0.033421. This gives the local barometric pressure of 635.92 mmHg. Example 2 a. The altitude is 1000 meters . The local uncorr...

34 Functional verification Welch Allyn Propaq CS Vital Signs Monitor Mainstream CO 2 verification procedure This procedure verifies the accuracy of the monitor’s mainstream CO 2 (MCO 2 ) measuring system. If verification test results exceed specification limits, calibration ( “MSP Board (MCO2) calib...

Service Manual Functional verification 35 WARNING Eliminate all the possibilities causing errors shown in the following table before performing the calibration procedure ( “MSP Board (MCO2) calibration” on page 54). Recalibrating the altimeter as described in that procedure, without adequately elimi...

36 Functional verification Welch Allyn Propaq CS Vital Signs Monitor Sidestream CO 2 verification procedure The following procedures verify the operation of the sidestream CO 2 (SCO 2 ) option. 1. Allow the monitor to warm-up for 3 minutes before performing the SCO 2 tests. 2. If present, disconnect...

Service Manual Functional verification 37 11. Plug the water trap inlet and verify that the monitor generates an OCCLUSION- CHECK WATER TRAP/TUBING equipment alert message. Acknowledge the equipment alert. Wait for SRCH to appear in the SCO 2 numerics window. 12. Plug the exhaust port and verify tha...

38 Functional verification Welch Allyn Propaq CS Vital Signs Monitor 30. Multiply the calculated partial pressure (in mmHg) from step 29 by 0.95316. Record this calculation for use in step 33. 31. Select the SIDE TEST through the SERVICE > CO2 TEST > SIDE TEST menus. 32. Observe the instantane...

Service Manual Functional verification 39 Functional verification for Acuity Wireless option To perform this procedure, you will need access to a properly functioning Acuity FlexNet network supporting wireless operation. 1. Disconnect any patient cables connected to the monitor. Make sure the hardwi...

40 Functional verification Welch Allyn Propaq CS Vital Signs Monitor Reset Radio menu (5 GHz radio card) For monitors containing a 5 GHz radio card, a concealed menu is provided that allows resetting the 5 GHz card’s configuration back to its factory default configuration. It may be necessary to ret...

Service Manual Functional verification 41 Once the sequence is entered correctly, the Reset Radio menu will be displayed. Press YES to reset the radio to its factory default settings. Press NO to exit the menu. Note If the Reset Radio menu is accessed immediately after the monitor is powered on, the...

4 43 Calibration Introduction This section provides procedures to perform all adjustments required to calibrate the Propaq CS monitor to conform to Welch Allyn specifications. Calibration requires opening the monitor case. This must be performed only by qualified personnel. • Calibration includes ad...

44 Calibration Welch Allyn Propaq CS Vital Signs Monitor Equipment needed You will need the following equipment to calibrate the Propaq CS monitor. Part numbers are given for equipment available from Welch Allyn. Setup To calibrate the monitor you must open and then perform some disassembly to reach...

46 Calibration Welch Allyn Propaq CS Vital Signs Monitor Recharger supply adjustments 1. Verify that the monitor power switch is off. 2. Disconnect the battery connector from P12 on the Recharger Board (see below). 3. Disconnect P8 from the Digital Board (see below). Figure 1. Disassembled front cha...

Service Manual Calibration 47 8. Verify that the input current from the variable dc power supply is less than 1.8 A and that the green LED on the monitor’s right side panel is on. Figure 2. Recharger PCB measurement and adjustment locations 9. Connect the DMM positive lead to P12 pin 1 or 5. 10. Con...

48 Calibration Welch Allyn Propaq CS Vital Signs Monitor Main power supply adjustments The following procedures assume you are continuing from the Recharger Board calibration. If not, refer to the setup procedures provided at the beginning of this section. 1. Turn off the monitor. 2. Remove the meta...

Service Manual Calibration 49 8. Disconnect the DMM leads. Table 12. Main power supply voltage checks Supply voltages Ref. lead Pos. lead Voltage limits (V) Non-isolated +15 TP39 TP3 +14.7 to +15.3 –15 TP39 TP11 –14.8 to -15.5 Isolated +VR TP43 or TP1 TP9 +4.91 to +5.09 +VS TP43 or TP1 TP5 +6.58 to ...

50 Calibration Welch Allyn Propaq CS Vital Signs Monitor Calibrating realtime ECG out 1. Connect the 5-lead ECG cable to the monitor and the simulator. 2. Set the simulator to 80 bpm, normal sinus rhythm. 3. Set the monitor to Lead II. 4. Connect the dc-coupled oscilloscope probe to P9 pin 6 on the ...

Service Manual Calibration 51 Noninvasive Blood Pressure calibration 1. Connect the cuff, digital pressure meter, bulb, and the Encore together with the cuff calibration kit. Using T-connectors from the kit, connect the cuff, pressure meter, and bulb. 2. Connect this NIBP test setup to the pressure ...

52 Calibration Welch Allyn Propaq CS Vital Signs Monitor 11. Connect the oscilloscope reference lead to TP43 or TP1 on the Analog Board. 12. Check for ≤ 15 mV peak-to-peak noise. 13. Disconnect all patient inputs to the monitor’s left side panel. Note Measure the low frequency noise (bounce) only. M...

Service Manual Calibration 53 Invasive Blood Pressure Skip this part of the calibration procedure if your monitor does not support IBP measurements. 1. Connect the IBP simulator to P1 on the monitor left side panel. 2. Set the patient simulator to 0 mmHg. 3. Press ZERO P1 to zero the channel. 4. Set...

54 Calibration Welch Allyn Propaq CS Vital Signs Monitor MSP Board (MCO 2 ) calibration The monitor MSP Board has two calibration adjustments. One adjustment (RP2) is a null adjust for electromagnetic interference emissions—this adjustment has no effect on MCO 2 performance/accuracy. The other adjus...

5 55 Troubleshooting Introduction This section provides information that can be helpful in troubleshooting the monitor. Screen messages Messages may appear on the display to inform the operator of some condition requiring operator or service attention. Messages that indicate that the Propaq CS monit...

56 Troubleshooting Welch Allyn Propaq CS Vital Signs Monitor LACK OF WAVE, CHECK ADAPTER, SENSOR - (MCO 2 ). The air way adapter (cuvette) may be contaminated or the light source in the sensor may be faulty. Clean or replace the cuvette as required or replace the CO 2 sensor. SENSOR FAILURE, CALIBRA...

Service Manual Troubleshooting 57 Battery capacity check Several variables affect monitor operating time on battery: • active options • frequency of NIBP measurements • frequency and length of printouts • ambient temperature, • battery age and condition • displayed information. Refer to the Propaq C...

6 59 Repair procedures Introduction This section provides instructions for removing and replacing serviceable modules in the: • Propaq CS monitor • Expansion Module (which may include any or all of the following: printer, SpO 2 , Mainstream CO 2 , Sidestream CO 2 ) • SpO 2 -only module This section ...

60 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Required tools The following tools are required to disassemble and reassemble the Propaq CS monitor components. Note The DCP PROMs and the Digital Board are not field replaceable due to external programming requirements. Do not remove th...

Service Manual Repair procedures 61 Propaq CS Monitor options Your monitor may contain an option module that attaches to the monitor. You must remove the option module before you can disassemble the monitor. For instructions on how to remove the Expansion Module, refer to “Replacing the battery pack...

62 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Field-Replaceable Units in the monitor Front chassis The Front Chassis of the monitor contains the following components: • Insulator • Analog Board with metal shield and insulator • Digital Board with shields • LCD display module • Front...

Service Manual Repair procedures 63 Interface chassis The Interface Chassis is available either with or without the Nurse Call option. Rear chassis The Rear Chassis contains the following components: • Recharger Board • Side panels (right and left) • NIBP pump • NIBP tubing • NIBP valves Standard In...

64 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing the power input fuse The Fuse F1 protects the Recharger Board circuitry against excessive current at the dc input connector. You do not need to disassemble the Propaq CS monitor to replace this fuse. Check fuse F1 if the ac pow...

Service Manual Repair procedures 65 Keep the batter y away from children. Do not disassemble it and do not incinerate or burn it. The battery maintains programmed defaults and time of day. Without the battery, the values for these items return to the factory settings. If the power up error message T...

66 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Removing the single battery pack The following steps describe how to remove the battery pack from the monitor: 1. Using a flat blade screwdriver, unscrew the four screws securing the battery pack cover as shown below. 2. Disconnect the m...

68 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor 7. Remove the dual batter y pack from the Expansion Module. 8. Store the battery in a safe place while disassembling the monitor and Expansion Module. When reconnecting the Expansion Module, confirm that the continuous O-ring gasket is c...

Service Manual Repair procedures 69 3. Slightly spread the casing open at the top until you can disconnect the pressure transducer tube indicated below. 4. Spread the casing open to an angle of 45 degrees. 5. Detach the expansion connector cable (to P1) from the Front Chassis of the monitor as indic...

70 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor P1 removal 6. Spread the casing open to an angle of about 45-60 degrees. 7. Detach the following cables from the Front Chassis (shown below): • Cable to P5 on the Analog Board, from left side panel ECG connector on the Rear Chassis. • Ca...

Service Manual Repair procedures 71 8. Detach the ribbon cable from the Rear Chassis (see below): Ribbon cable to P10 on the Recharger Board, from the Digital Board. cable p10, p11 9. Separate the Interface Chassis from the Rear Chassis (see below). Note The two halves are sealed by rubber gaskets t...

72 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Closing the monitor 1. Before closing the monitor casing, confirm the following: • Cable to P6 on the Analog Board goes behind and below the cable to P5, and over the cable to P7. • Cable to P5 on the Analog Board goes over and in front ...

Service Manual Repair procedures 73 Replacing the Analog Board This section provides instructions on removing the Analog Board. The Analog Board is secured in the Front Chassis by five screws: three on the right side of the Board (side containing the transformer), and two passing through the metal s...

74 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor 6. Gently lift the Analog Board up from the Front Chassis. When installing the Analog Board: • Blow out any dust and particulates from the Board using pressurized de-ionized gas before installing it. • Align the Board so that P4 correctl...

Service Manual Repair procedures 75 Replacing the Display The Digital Board is located beneath the Analog Board. It is necessar y first to pull off the board set (consisting of the Display, Digital Board, and Analog Board) in order to disconnect the Display cables from the Digital Board without dama...

76 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor 7. Remove the nine screws connecting the Digital Board to the Display (see below). IMPORTANT : Short screw

Service Manual Repair procedures 77 Reinstalling the Display When installing the Display: • Make sure the cable between the Digital Board and Recharger Board is installed on the Digital Board first before placing the Digital Board on the Front Chassis. • Handle all Display cables with care to avoid ...

78 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing Recharger Board fuse (F2) The Recharger Board fuse (F2) protects the monitor power supply input at the battery line to the monitor. If the monitor does not turn on but the BATTERY CHARGING indicator lights when the ac power ada...

Service Manual Repair procedures 79 Replacing air tubing Replace the NIBP tubing as a single assembly to ensure the tubing lengths are accurate. Refer to “Field Replaceable Units (FRUs)” on page 129 for the tubing assembly part number. Note If you don’t need to replace the length of tubing between t...

80 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing cables If you suspect a cable is faulty, check its continuity on all pins. If you need to replace a cable, refer to “Field Replaceable Units (FRUs)” on page 129 for part numbers. See below for cable locations. When removing a c...

82 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Cuff fittings Air system integrity in the NIBP system is essential to ensure accurate measurements. Routine wear of the O-ring gasket located in the threaded fitting of the cuff hose can result in air leaks. If you encounter air leaks th...

Service Manual Repair procedures 83 Replacing the Recharger Board The Recharger Board is secured to the Rear Chassis by four screws. When removing the Recharger Board, note the location of cables, plumbing, and screws and screw lengths. 1. Remove the batter y pack ( “Removing the single battery pack...

84 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor 6. Lift out the Recharger Board. When installing the Recharger Board: • blow out any dust and particulates using pressurized de-ionized gas • move all cables out of the way • torque screws to 3.8 in-lb to 4.2 in-lb (0.43 N-m to 0.47 N-m)...

Service Manual Repair procedures 85 Replacing the pump New wires and a connector are provided with the replacement pump kit. 1. Remove the batter y pack ( “Removing the single battery pack” on page 66). 2. Open the monitor ( “Opening the monitor” on page 68). 3. Remove the Recharger Board ( “Replaci...

86 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing the side panels The Propaq CS monitor side panels are complete assemblies. The side panels are sealed to the Rear Chassis with an adhesive gasket. A new gasket is provided with the new side panel kit. Removing the right side pa...

Service Manual Repair procedures 87 Removing the left side panel 1. Remove the batter y pack ( “Removing the single battery pack” on page 66). 2. Open the monitor ( “Opening the monitor” on page 68). 3. Remove the Recharger Board ( “Replacing the Recharger Board” on page 83). 4. Remove the U-shaped ...

88 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor side panel routing 4. On the new side panel, remove the protective paper from the gasket attached to the side panel. 5. Set the side panel in place. Make sure the side panel completely sets in place (it should be flush with the exterior ...

90 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Expansion Module The Expansion Module housing contains one or all of the following (see below): • printer mechanism with Printer Main Board • MSP Board (units with CO 2 option) • CO 2 connector side panel • SCP/SpO 2 Board (units with pr...

Service Manual Repair procedures 91 Opening Expansion Module rear panel 1. Separate the monitor and Expansion Module ( “Removing the dual battery in expansion module” on page 66). 2. Remove the four screws securing the rear panel to the Expansion Module Chassis (see below). 3. Separate the rear pane...

92 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Closing Expansion Module 1. Make sure all cables are in place and the gaskets removed earlier are available. 2. Set the rubber gaskets in their proper places as shown in the figure below. 3. Connect the printer cable and expansion cable ...

Service Manual Repair procedures 93 Replacing Expansion Module front panel The front panel contains the printer buttons. Like the rear panel, the front is sealed to the Chassis with a rubber O-ring gasket. This gasket can be re-used when replacing the front panel. The Expansion Module front panel is...

94 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing Expansion Module button board and buttons The Expansion Module contains a button board that has electrical contact areas to detect when an Expansion Module button is pressed. The front panel buttons are similar to the monitor b...

Service Manual Repair procedures 95 Replacing the printer This section provides instructions on removing and installing the printer mechanism and Printer Main Board. These two components are provided as a replacement unit called the Printer Assembly. Removing printer Remove the Printer Assembly acco...

96 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Installing the printer 1. Lay the Chassis on its back 2. Completely open the paper door. 3. Slide the Printer Assembly into the guides as shown below, making sure that after the door latch mechanism clears the chassis you rotate it clock...

Service Manual Repair procedures 97 Opening the SpO 2 Module 1. Separate the SpO 2 module from the monitor according to the procedure “Removing the dual battery in expansion module” on page 66. 2. Two tabs secure the SpO 2 module rear panel to the SpO 2 module chassis. Using a small screwdriver or y...

98 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Replacing the SpO 2 Boards The following instructions describe how to replace the two SpO 2 Boards in the SpO 2 module and in the Expansion Module without a CO 2 option. Instructions for replacing SpO 2 Boards in an Expansion Module with...

Service Manual Repair procedures 99 Replacing the MSP/SpO 2 Boards The following instructions describe how to replace the MSP/SpO 2 Boards in the Expansion Module with a CO 2 option. Instructions for replacing SpO 2 Boards in SpO 2 module and Expansion Module without a CO 2 option installed are desc...

100 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor • set the two boards and side panels in place, making sure that the boards are seated on the support tabs • torque screws to 4.75 to 5.25 in-lb (0.54 to 0.59 N-m) • reconnect the Mainstream CO 2 patient connector cable Replacing the Sid...

Service Manual Repair procedures 101 Removing the SSP/Stick Board assembly 1. Remove the two screws located on the right edge of the SSP Board (as viewed from the front). 2. Tilt the loosened right edge of the SSP Board assembly (with interconnected Stick Board) up, away from the mounting screw post...

102 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor Removing the Stick Board from the SSP Board 1. Disconnect the tubing from the pump and pressure transducer PT2 on the front-facing side of the SSP Board and the pneumatic reservoir on the rear-facing side. 2. Remove the two screws from ...

Service Manual Repair procedures 103 Replacing Expansion Module side panels The side panels easily slide out after the Chassis and rear panel are separated. If the patient connector side panel is being replaced, this side panel and the two boards must be removed together before disconnecting the sid...

7 105 Technical overview Introduction This section describes the electronics of the Propaq CS monitor and three of its options: Printer, Pulse Oximetry (SpO 2 ), and Capnography (CO 2 ). This section is intended as an aid to servicing at the field replaceable unit level and contains only system-leve...

106 Technical overview Welch Allyn Propaq CS Vital Signs Monitor Monitor options 0696-12 Rear Chassis Recharger Board Right Side Panel Left Side Panel Analog Board Digital Board Display Display Gasket Front Chassis with Touchscreen Standard Interface Chassis Monitor 1097-15 SpO2-Only Module Option 2...

Service Manual Technical overview 111 Power electronics description The power system circuits are located on the Analog, Digital, and Recharger Boards. The power system includes the ac mains power adapter. Refer to the figure below. The power system • converts ac mains current to dc current (externa...

Service Manual Technical overview 113 Monitoring electronics system description The monitoring electronics reside on the Analog and Digital Boards located in the front chassis assembly. Refer to the figures page 113 , page 114 and page 115 . These circuits: • acquire the physiological signals from c...

Service Manual Technical overview 115 Digital board interconnect diagram (5 GHz radio card)

116 Technical overview Welch Allyn Propaq CS Vital Signs Monitor NIBP pneumatics description The NIBP (cuff) system: • inflates the cuff to a target cuff pressure • converts the cuff air pressure to an electrical signal using a pressure transducer • deflates the cuff in a controlled manner while the...

120 Technical overview Welch Allyn Propaq CS Vital Signs Monitor Cabling diagrams system cabling diagram 825-0146-00 A REF DWG, CABLING, 24X G SERIES M ANALOG PCB RIGHT SIDE PANEL LEFT SIDE PANEL RECHARGER PCB REAR CHASSIS LCD DISPLAY EXPANSION CONNECTOR DIGITAL PCB KEY EMBEDDED PCB WIRE CONNECTION ...

Service Manual Technical overview 121 Expansion Module and printer description The printer shares battery power with the monitor, but contains its own power supply. The printer processor communicates with the monitor's processor through the expansion connector and cable. The Expansion Module is desi...

Service Manual Technical overview 123 Pulse oximetry option (SpO 2 ) description The monitor pulse oximetry option (SpO 2 ) hardware includes two circuit boards, a side- panel connector, and related hardware. The pulse oximetry option is installed in the pulse oximetry option module attached to the ...

Service Manual Technical overview 127 Mainstream Board The MSP Board is divided into isolated and non-isolated circuitry. Non-Isolated Circuitry. The Non-Isolated circuitry on the MSP Board interfaces with the monitor, the printer, the speaker, P6 and P7 expansion connectors, and with the Mainstream...

128 Technical overview Welch Allyn Propaq CS Vital Signs Monitor IPC expansion The Inter-Processor Communications (IPC) bus, originating in the monitor, is passed to the MSP Board from the expansion connector. The two-wire bus is expanded to the printer and to the Mainstream Processor via opto-coupl...

8 129 Field Replaceable Units (FRUs) To order a field-replaceable unit, contact Welch Allyn Technical Support as described in page ii . Replacement part description Part number Monitor Circuit Board assemblies ANALOG PCB, 24X (MODELS with S/N GA0) (Requires software version 3.5X and later.) 020-0577...

Service Manual Field Replaceable Units (FRUs) 133 LABEL, PRINTER KEY PANEL 640-0465-00 Special service tools NIBP CALIBRATION SETUP TUBING ADAPTER KIT 008-0012-01 Replacement part description Part number

A 135 Manufacturable test equipment The following device(s) can be manufactured for use in the functional verification and calibration procedures in this manual. Parts are readily available from electronic component suppliers. CONNECTOR: 5-PIN, 0.156" CENTER MFR: METHODE; PN 3300-405-220 PROTOCO...

B 137 Fluke patient simulator modification The factory configuration of the Fluke (Dynatech/Nevada) model 214A, 215A, and 217A Patient Simulators is incompatible with the Propaq CS monitors with IBP channels when both the ECG and invasive pressure simulator channels are simultaneously connected to t...