Lighting - Observation Lights - GE PANDA Service Manual

Chapter 4: Troubleshooting
Troubleshooting Tables
Possible Causes
Faulty Alarm/Light
PCA ribbon cable.
Defective Alarm/
Light PCA
4.4.2 Lighting – Observation Lights
4.4.2.1 Light Output Flickers at Lowest Setting
Possible Causes
Mains voltage too
low
Mains power quality
4.4.2.2 Light Output Dim at Highest Setting
Possible Causes
Mains power too low
Wrong observation
light transformer
4-24
Step Troubleshooting Procedure
Check for 12V DC on pins 1,2 on Procedure Light
Assembly harness of J33 Alarm/ Light PCA.
32.
If OK continue, if voltage not present, replace
Procedure Light Assembly.
33. Reconnect and check for 3.3V at J32 pins 1,6.
Check connection of ribbon cable at Alarm/Light
34.
PCA and Control PCA.
35. If OK, replace Alarm/Light PCA.
Step Troubleshooting Procedure
Using DMM, measure AC voltage at accessory
1.
outlet.
Light output may flicker if mains voltage is <10%
2.
below nominal.
Light output may flicker if mains voltage is
3.
distorted or heavily loaded.
Step Troubleshooting Procedure
Using DMM, measure AC voltage at accessory
1.
outlet.
Light output may appear dim if mains voltage is
2.
<10% below nominal.
To verify, remove observation light bracket and
3. verify part # and model # of the electronic
transformer harness.
Comments
Comments
Comments
230V part#:
2065756-001
115V part#:
2065752-001
Service Manual