Spo2 Pcb Removal (If Configured With Spo2) - Welch Allyn Spot Vital Signs Service Manual

Welch Allyn, Inc. Spot Vital Signs Service Manual
Revision A

4.7 SpO2 PCB Removal (If configured with SpO2)

1. Lay unit face down on the test bench
2. Remove the 4 Phillips head screws holding the battery cover/handle to the unit using T112918
with the #4 Phillips bit (T112919).
3. Lift handle/cover and aside.
4. Lift battery from housing and disconnect the Molex connector.
5. Remove 3 #10 Torx Screws from the temperature pod using T112917 with the #10 Torx bit
(T114030).
6. Roll temperature pod toward top of the unit and place on test bench.
7. Unplug the flex cable from the temperature connector PCB and aside the temperature pod.
8. Remove the 4 Phillips head screws using T112918 with the #4 Phillips bit (T112919).
9. If equipped with SpO2, remove and aside the SpO2 cable clip.
10. Remove the tubing from the front housing and aside housing.
11. Gently lift the LCD module from its post.
12. Roll the LCD to the left and set on the bench beside the Spot unit.
13. Remove the flex cable from the LCD and aside the display.
14. Disconnect the power cable from the main PCB by pushing down on the tab and pulling toward
the bottom of the unit.
15. Remove the pneumatic tubing from the transducer on the PCB.
16. Remove the battery/Valve cable connector from the bottom of the PCB.
17. Remove the 4 #10 Torx screws from the PCB using T112917 with the #10 Torx bit.
18. Lift Main PCB from housing and aside.
19. Remove the 3 Phillips head screws along with the nuts and spacers form the SpO2 PCB. Use
T112918 with the Phillips bit (T112919) and needle nose pliers.
20. Remove the SpO2 module (Nellcor MP205) from the main PCB and aside.
Note: Remember to ensure that they are two shunts at the top of the jumper row on the Nellcor
MP205 PCB Before you install onto the Main PCB. Further, ensure that the two locking tabs on
the connectors of the Nellcor MP205 PCB are broken off before installing onto the Main PCB.
Ensure, also, that the nylon washers are located on the main PCB when reassembling the SpO2
PCB to the Main PCB.
Reassemble in reverse order
End of Section 4.7
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