Chapter 4: Troubleshooting
Troubleshooting Tables
4-38 Service Manual
4.4.7.2 Alarm Message: “Confirm Probe Jack Connection”
4.4.8 Electronics – Scale (Bedded Models Only)
4.4.8.1 No Scale Icon Displayed
4.4.8.2 Defective Scale
Possible Causes Step Troubleshooting Procedure Comments
Defective probe 1.
Check if probe is seated properly. If OK, replace
patient probe.
Cold probe 2.
If probe is < 24°C, then the unit will display
"Confirm Probe Jack Connection"
Defective rail
harness
3.
Remove upper housing and check Patient Probe
Rail Harness connection at the Probe Panel
Interface Board (J54).
Harness PN:
6600-1572-702
4.
Make sure connections are correct and properly
seated. Refer to “6.13 Wiring Diagrams” for pin
verification.
5.
With a patient probe connected and the 4-pin
connector that mates to the Probe Panel Interface
Board disconnected, check continuity of harness
by probing the 4-pin connector.
6.
Using Digital Multimeter, verify Pin 1-4 = Pin 2-4 =
10,000 ohms at 25°C. If not equal, replace rail
harness; If OK, continue.
Defective Probe
Panel Interface
Board
7.
Check for properly seated connection at Control
PCA, J2.
Probe Panel
Interface Board PN:
2065772-001
8. Remove and replace Probe Panel Interface Board.
Defective Control
PCA
9. Replace Control PCA.
Possible Causes Step Troubleshooting Procedure Comments
Improper scale
connection
1. Check scale connection at probe panel.
Possible Causes Step Troubleshooting Procedure Comments
Defective scale rail
harness
1.
Plug in a known good scale. If the problem persists,
continue.
2.
Remove the upper housing. Check to see harness
is properly seated and connected to mating
connector (Probe Panel Interface Board, J53).
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