Chapter 4: TroubleshootingTroubleshooting TablesService Manual 4-394.4.9 Electronics – SpO 24.4.9.1 No SpO2 Probe Detected4.4.9.2 No SpO2 Option on Screen3.Disconnect scale harness at the Probe PanelInterface Board. Plug in replacement cable andre-test. Replace harness as necessary.Scale harnesspart #:6600-1586-7004.Check the Probe Panel Interface Board connectionat the Control PCA (J2). If OK, then there is either aproblem with the Probe Panel Interface Board orControl PCA.5. Replace the Probe Panel Interface Board or ControlPCA as necessary.Possible Causes Step Troubleshooting Procedure CommentsPossible Causes Step Troubleshooting Procedure CommentsImproper mating ofprobe with probeconnector1. Possible cause if SpO 2 icon doesn't automaticallyappear when plugged in during power ON.Dislodged SpO2connector 2. Check that the probe connector at the probe panel(jack plate) is seated properly.3.If the blue SpO2 connector has been dislodgedfrom the probe plate, remove the bottom coverprobe panel and snap the connector back into theconnector plate.3 mm Hex WrenchReverse probeconnection 4.Check that the instrument cable and contacts withthe SpO 2 disposable patient attachment probe arecorrectly inserted and are properly seated.Defective SpO2 FlexCircuit 5. Remove the bottom cover and verify that the Spo2Flex Circuit is properly seated and connected.Rail harness part #:6600-1587-7006. Make sure the LED light is lit on the SpO2 probe.If not, replace the probe.Possible Causes Step Troubleshooting Procedure CommentsNo comm. betweenthe SpO 2 I/F PCAand Control PCA1.Check the rail harness connection J40 from theProbe Panel Interface Board to the SpO2 I/F PCA.Make sure harness is properly seated and correctlyconnected.SpO 2 RailHarness part #:6600-1587-7002.Verify the connection from the Control PCA to theProbe Panel Interface Board. Make sure the harnessis properly seated and the connections are correct.Part #: 2065772-001
