Welch Allyn 300 Series - Manuals

2 5 Service overview Purpose and scope This service manual is a reference for periodic preventive maintenance and correctiveservice procedures for the Vital Signs Monitor 300 Series. Corrective service is supported to the level of field-replaceable units. These include somecircuit-board assemblies a...

Service manual Service overview 7 Recommended service intervals Service options Warranty service All repairs on products under warranty must be performed or approved by Welch Allyn.Refer all warranty service to Welch Allyn Factory Service or another authorized WelchAllyn Service Center. Obtain an RM...

3 9 Functional verification Functional verification overview This section describes the procedure for a complete functional test to supportrecommended preventive-maintenance schedules. The verification includes tests for a monitor configured with the printer, temperature, andSpO 2 options. Perform o...

10 Functional verification Welch Allyn VSM 300 Series Welch Allyn accessories and test equipment Order number Description 06138-000 Temperature test key(for testing the monitor only) 01802-110, 110 V01802-220, 220 V 9600 Plus Calibration Tester(for testing the monitor and the temperature probe) 008-...

Service manual Functional verification 11 Functional verification procedure Reference illustration System/power Setup • If the monitor is configured with the temperature option, connect the temperatureprobe and insert it into the probe well. • If you are using an optional Welch Allyn Model Calibrati...

12 Functional verification Welch Allyn VSM 300 Series Battery substitution cable setup 1. Disconnect the power adapter. 2. Remove the battery cover and remove and disconnect the battery. 3. Connect the open-ended red (+) and black (–) wires of the battery substitution cable(407590) to the variable D...

Service manual Functional verification 13 e. Do not return the probe to the probe well. 2. If the SpO 2 option is present: a. Verify that the SpO 2 sensor cable is connected to the monitor. b. Verify that the current draw from the bench power supply is less than 800 mA. 3. Disconnect the SpO 2 senso...

14 Functional verification Welch Allyn VSM 300 Series NIBP Characterization test 1. Attach a neonate hose (part 008-0265-01) to the NIBP fitting on the monitor. 2. Prepare the 60-mL syringe as follows, with reference to the illustration below: a. Move the syringe plunger to the 35 mL line. b. Drill ...

Service manual Functional verification 15 Leak test This tests the NIBP system for abnormal leakage. If the NIBP system is leaking, check for leaks in the external plumbing before opening thecase to look for internal leaks. If you determine that any NIBP module component is causing abnormal leakage,...

16 Functional verification Welch Allyn VSM 300 Series 7. Press several times to select 0 mmHg (0 kPa). The valve opens to release pressure. 8. Disconnect the neonate cuff. Pressure calibration verification This tests pressure readings on the monitor against a calibrated external pressure meter. 1. P...

Service manual Functional verification 17 4. Press once to select 80 mmHg (10.7 kPa). The cuff quickly inflates to approximately 80 mmHg (10.7 kPa), and then settles at a slightly lower pressure level.Wait a few seconds for the pressure to stabilize. 5. Verify that the value displayed in SYS is with...

18 Functional verification Welch Allyn VSM 300 Series 2. Press once to select 80 mmHg (10.7 kPa). 3. Wait for the pump to start and stop. 4. Press once to select 150 mmHg (20 kPa). 5. Wait for the pump to start and stop. 6. Bleed the pressure to 0 by opening the relief valve on the bulb. 7. Close th...

Service manual Functional verification 19 2. Turn on the monitor. 3. Set the monitor to ADULT mode. a. Press once. b. Press repeatedly until ADULT appears. 4. Set the inflation target pressure to 270 mmHg (36 kPa). a. Press repeatedly until TARGET PRESSURE appears in the display window. b. Press rep...

Service manual Functional verification 21 Printer 1. Put the monitor into Service Mode. 2. Verify that the printer has paper. 3. Press . Verify that a settings report prints, and that it contains no printed anomalies and no missing or faded sections. 4. After 2 seconds of printing, verify that the c...

Service manual Functional verification 23 SpO 2 Perform one of the following three SpO 2 tests. Testing the monitor only (Nellcor SpO 2 ) Use this procedure to test only the monitor SpO 2 function. 1. Power the monitor off. 2. Connect the Nellcor SRC-MAX SpO 2 functional tester to the SpO 2 input co...

24 Functional verification Welch Allyn VSM 300 Series Testing the sensor with the monitor Use this procedure to test the monitor SpO 2 function while verifying a sensor. 1. Connect an SpO 2 sensor to the simulator optical finger and to the monitor. 2. Set the BioTek Index2 SpO 2 simulator as follows...

Service manual Functional verification 25 Temperature Perform one of the following temperature tests. Testing the monitor only Use this procedure to test only the temperature function. 1. With monitor power on and with the temperature probe in the well, disconnect theprobe cable from the temperature...

Service manual Functional verification 27 Nurse call Relay verification With reference to the drawing and table below, use an ohmmeter to check the contactresistance at the output pins of the Nurse Call connector, while the monitor is in the alarmstate and while the monitor is out of the alarm state...

28 Functional verification Welch Allyn VSM 300 Series Battery 1. With the monitor power off, disconnect the battery substitution-cable connector. 2. Install and connect the battery. 3. Connect the AC power adapter to the monitor. 4. Verify that the AC mains indicator is illuminated on the monitor fr...

Service manual Functional verification 29 The patient isolation test requires an AC Withstand voltage high potential (hi-pot) tester,such as the AR 3605 or equivalent. If this equipment is not available, Welch Allyn canperform the patient isolation test for you quickly, for a nominal fee. Patient is...

Service manual Functional verification 31 Checklist and test results report form Use a copy of this form to track your progress through the functional verification.  Test Result Pass (or N/A)  Fail  Battery chargingPower-on self-testBeeperMonitor-off current (mA): Init/idle current (mA): Baseline...

4 33 Troubleshooting and repair Troubleshooting chart This troubleshooting chart includes error codes related to possible internal failures. Basedon the observed symptom, perform suggested actions one at a time from top to bottom.To reduce repair costs, determine whether the symptom still exists, by...

Service manual Troubleshooting and repair 37 Welch Allyn monitor service utility Overview The Welch Allyn Monitor Service Utility is a software tool for use, with the VSM 300Series service manual, by biomedical technicians, clinical engineers, and other qualifiedservice personnel, to update and repa...

38 Troubleshooting and repair Welch Allyn VSM 300 Series Required equipment 810-1784-xx Vital Signs Monitor 300 Series Software Upgrade Tool CD-ROM008-0842-xx Vital Signs Monitor 300 Series serial cablePC with the following: • Windows XP SP2 or Windows 2000 SP4 operating system • Intel Pentium IV CP...

Service manual Troubleshooting and repair 41 To configure to a different COM port 1. Right-click on the port you want. 2. Select Properties . 3. Select Port Settings . 4. Click Advanced . 5. Select a new COM Port Number. The port settings for the Keyspan adapter are explained in the documentation in...

44 Troubleshooting and repair Welch Allyn VSM 300 Series Event Log Debug Log

Service manual Troubleshooting and repair 45 Cal & User Logs Update Monitor Software The Update Monitor tab displays installed (Installed Ver) and available (Update Ver)versions for the Monitor Boot, Main, and NIBP module software. If the monitor has anoptional SpO 2 or temperature module, the f...

46 Troubleshooting and repair Welch Allyn VSM 300 Series Update the Monitor To minimize the possibility of interruption during the update: • Do not run other applications on the PC during this process. • Do not disconnect the monitor from the AC power adapter or the computer until Finished is clicke...

Service manual Troubleshooting and repair 47 If updates are available, Update Status is either “Update required” or “UpdateRecommended”. 1. Connect the monitor to the AC power adapter and to the PC. 2. Start the utility. 3. Select Update Monitor . 4. To start a software update, click Update . The mo...

48 Troubleshooting and repair Welch Allyn VSM 300 Series 5. When the software upload is complete, the Update Status and Upload Statusmessages display “Success”. Click Finish to cause the service tool to query the monitor and retrieve the newly installed monitor versions. After clicking Finish , Upda...

Service manual Troubleshooting and repair 49 6. The service utility writes a log file detailing the update. By default, the log file is savedto the same directory the program was installed to. The file name is the word“update_” and the monitor serial number. • To view the file without printing, clic...

50 Troubleshooting and repair Welch Allyn VSM 300 Series Monitor HW0Not updatableCompatible ------------------------------------------------------------------------UPDATE LOG------------------------------------------------------------------------March 15 2007 11:32:33 Monitor Main:1.20.00 SuccessMar...

Service manual Troubleshooting and repair 51 1. After a hardware module has been replaced with a new version, run the service utilityto accept the new configuration. To accept the new firmware, click Update . The dialog box opens as shown in the screen shot below. 2. Determine whether to update the ...

Service manual Troubleshooting and repair 53 In this screen, the NIBP module has been replaced with a POEM2 NIBP module.Before the VSM can use the POEM2 NIBP module, the service utility must updatethe VSM with the new configuration. In this case, the NIBP module already containsthe latest software, ...

5 55 Disassembly procedure Procedures overview These procedures cover monitor disassembly and board removal. Unless otherwisenoted, the assembly procedure is the reverse of the disassembly procedure. Screws Following are recommended torque specs for all screws: WARNING Electrical shock hazard. The b...

56 Disassembly procedure Welch Allyn VSM 300 Series Connectors Connector types The procedures described below require you to disconnect and reconnect ZIF (zero-insertion force) connectors, squeeze-release connectors, and pressure connectors. Zero-insertion force (ZIF) flex-cable connectors ZIF flex-...

58 Disassembly procedure Welch Allyn VSM 300 Series Remove and disconnect the battery 1. Remove the four screws securing the battery door. 2. Remove the battery door. 3. Slide the battery out of the battery compartment. This might require lightly shakingthe monitor. 4. Disconnect the battery from th...

Service manual Disassembly procedure 59 Separate the front and rear chassis 1. Remove the three screws securing the rear chassis. 2. Place the unit upright, with the front of the unit facing you. 3. Tilt the top of the front chassis away from the rear chassis while lifting the frontchassis, freeing ...

60 Disassembly procedure Welch Allyn VSM 300 Series 5. Disconnect the display-board flex cable (J5) from the main board. Disassemble the front chassis assembly The front chassis assembly contains the display board, keypad, and NIBP air fitting. 1. Remove the five screws securing the display board. D...

Service manual Disassembly procedure 61 2. Lift out the display board. 3. Remove the keypad. Reassembly notes If you are replacing the keypad and your monitor does not include the thermal printeroption, the Printer button must be removed from the keypad before you reinstall the keypad. To remove the...

62 Disassembly procedure Welch Allyn VSM 300 Series Remove the LCD display from the main board Printer button Disconnect the LCD display modulefrom connector J6 on the main board

Service manual Disassembly procedure 63 Disassemble the rear chassis assembly Power cable Battery door Foam tape Pump and tubing Rear plastic housing Nurse call cable Cable tie Cable tie mount Battery Feet Speaker gasket Speaker NIBP module NIBP cable Foam tape Display module LED Foam tape Main boar...

64 Disassembly procedure Welch Allyn VSM 300 Series Remove the main board 1. Disconnect the temperature module flex cable from J12 on the main board. 2. Remove the four screws securing the main board to the rear chassis. Temperature module flex cable Main board J12 connector Unlatch the ZIF connecto...

66 Disassembly procedure Welch Allyn VSM 300 Series (* Denotes optional hardware.) 6. Remove the main board. Main board reassembly notes Older main boards (version 031-0150-01) To reconnect the main board power connector (J3), be certain that the cable connector isoriented with the slotted side up.....

Service manual Disassembly procedure 67 ...and the flanged side down. Newer main boards (versions 031-0150-03 and -04) Disassemble and remove the NIBP assembly 1. Remove the tubing and the pump. a. Disconnect the tubing from the manifold on the NIBP board. b. Disconnect the two sections of tubing fr...

Service manual Disassembly procedure 69 b. Remove the NIBP module. NIBP reassembly notes The shorter tubing section contains the air filter. It connects to the pump input/suctionfitting on the outer edge of the front. The longer tubing section contains the check valve. It connects to the pump pressu...

Service manual Disassembly procedure 71 Remove and disassemble the printer assembly 1. Remove the printer door. a. Open the printer door and remove the roll of printer paper. b. Push the printer door toward the rear of the monitor until it snaps out of the twosupport spindles on the printer frame. D...

74 Disassembly procedure Welch Allyn VSM 300 Series d. Turn the printer assembly upside-down. e. Remove the screw securing the printer board to the printer frame. f. If you are replacing the printer board, remove the cables from connectors CN1and CN3 for use on the replacement board. Printer reassem...

76 Disassembly procedure Welch Allyn VSM 300 Series Paper guide and sensor reassembly The operator, while replacing the printer paper, can inadvertently push the paper guideand sensor out of the chassis, rendering the printer inoperable. To reassemble the paper guide and the sensor 1. Remove the two...

Service manual Disassembly procedure 79 Disassemble the temperature module 1. Remove the temperature module from the monitor. a. Remove the two screws (located on the left side, inside the rear chassis) securingthe module to the slots on the left side of the rear chassis. To prevent the modulefrom d...

82 Disassembly procedure Welch Allyn VSM 300 Series Temperature module reassembly notes To install the temperature board in the module housing: 1. Square the circuit board in the housing to fit the probe-well receiver into the top of theoutside housing. 2. Tilt the board and rotate it counterclockwi...

6 87 Replacement parts This list includes field-replaceable service parts only. Use only accessories approved byWelch Allyn. Visit www.welchallyn.com . The use of any other accessories can result in inaccurate patient data, can damage the equipment, and can void your product warranty. Front case (st...

92 Replacement parts Welch Allyn VSM 300 Series Temperature option Drawing Ref # Order number Description Notes 1 620-0394-XX Screw, #4-40, 3/4”, machine 2 630-0211-XX Outside housing, temperature module 3 630-0238-XX Inside panel, temperature module 4 620-0393-XX Screw, #4-20, 5/16”, thread-forming...

Service manual Replacement parts 95 Printer option Drawing Ref # Order number Description 1 630-0213-XX Printer door without roller 2 630-0214-XX Frame, printer assembly 3 620-0149-XX Screw, printer door/roller 2-28 x 1/4” 4 620-0165-XX Screw, Plastite, 0.312, 2-28, thread-forming 5 532012-000 PCB, ...

96 Replacement parts Welch Allyn VSM 300 Series Order number Description Notes Labels 680-0085-XX Overlay, front panel, 53000, international 680-0079-XX Overlay, front panel, 5300P, international 680-0082-XX Overlay, front panel, 530T0, international 680-0083-XX Overlay, front panel, 530TP, internat...

7 99 Updates and service bulletins DC power cable clamp Eventually, the DC power cord might disconnect from the power input connector on theback of the monitor. To prevent this, contact Welch Allyn and order part number008-0895-XX, VSM 300 Series DC Power Cable Clamp. This item, which is provided at...