Chapter 4: Troubleshooting
Troubleshooting Tables
4-24
Service Manual
4.4.2 Lighting – Observation Lights
4.4.2.1 Light Output Flickers at Lowest Setting
4.4.2.2 Light Output Dim at Highest Setting
32.
Check for 12V DC on pins 1,2 on Procedure Light
Assembly harness of J33 Alarm/ Light PCA.
If OK continue, if voltage not present, replace
Procedure Light Assembly.
Faulty Alarm/Light
PCA ribbon cable.
33.
Reconnect and check for 3.3V at J32 pins 1,6.
34.
Check connection of ribbon cable at Alarm/Light
PCA and Control PCA.
Defective Alarm/
Light PCA
35.
If OK, replace Alarm/Light PCA.
Possible Causes
Step
Troubleshooting Procedure
Comments
Possible Causes
Step
Troubleshooting Procedure
Comments
Mains voltage too
low
1.
Using DMM, measure AC voltage at accessory
outlet.
2.
Light output may flicker if mains voltage is <10%
below nominal.
Mains power quality
3.
Light output may flicker if mains voltage is
distorted or heavily loaded.
Possible Causes
Step
Troubleshooting Procedure
Comments
Mains power too low
1.
Using DMM, measure AC voltage at accessory
outlet.
2.
Light output may appear dim if mains voltage is
<10% below nominal.
Wrong observation
light transformer
3.
To verify, remove observation light bracket and
verify part # and model # of the electronic
transformer harness.
230V part#:
2065756-001
115V part#:
2065752-001
Summary of Contents for PANDA
Page 4: ...RH 2 Service Manual...
Page 12: ...ii Service Manual About this Manual User Responsibility...
Page 38: ...Chapter 1 Functional Description System Functions 1 14 Service Manual FIGURE 1 8 Power Failure...
Page 60: ...Chapter 2 Installation Maintenance and Checkout Scale Checkout Procedures 2 8 Service Manual...
Page 62: ...Chapter 3 Calibration Scale Calibration Bedded Models Only 3 2 Service Manual...
Page 172: ...Chapter 6 Illustrated Parts Wiring Diagrams 6 40 Service Manual...
Page 180: ...Appendix A Specifications SpO2 Specifications A 8 Service Manual...