GE PANDA Service Manual page 98

Chapter 4: Troubleshooting
Troubleshooting Tables
4.4.6.3 Hands Free Alarm Silence Does Not Work
Possible Causes
Too much ambient
sunlight
Alarm/Light PCA not
programmed
Function has been
disabled or is not
enabled in software
Open connection
Defective emitter/
receiver circuit
Defective control
PCA
4.4.6.4 Distorted Audio Speaker
Possible Causes
Defective speaker
4.4.6.5 Flashing Alarm Light; Warmer Will Not Initialize
Possible Causes
DC Supply
Defective Power
Supply
4-36
Step Troubleshooting Procedure
Make sure that the unit is not placed in areas
with excessive sunlight, such as under a skylight.
Also, make sure that procedure light and
1.
observation lights are not at the highest settings,
as the bright light may affect infrared signals to
the Alarm/Light PCA.
Turn on procedure light. If procedure light does not
2.
light, replace the Alarm/Light PCA.
Or: In Service Mode, check the software versions.
3. Make sure that the alarm processor indicates
a software version.
In setup, verify hands free silence is enabled. If it
4. cannot be enabled, check the Service Mode setting
to make sure HFAS is enabled and save settings.
Check ribbon cable from the Control PCA to the
5. Alarm/Light PCA. Make sure it is properly seated
and correctly connected. Replace as necessary.
Go into Service Mode diagnostics--> touch panel
buttons-->test function--> hands free alarm.
Perform the test, making sure that the display
6.
screen reads pushed and released at the correct
time when a hand is waved in front of the alarm
panel.
7. Replace the Alarm/Light PCA.
8. Check/replace the Control PCA.
Step Troubleshooting Procedure
1. Replace the speaker.
Step Troubleshooting Procedure
Check voltage at Power PCA test pins 20-3 and test
1.
pins 22-3. Verify at least 11.5V.
If not, disconnect J20 from Power PCA. Verify +12V
2.
at harness connector pins 5 to 1.
Comments
Ribbon cable part #:
6600-1411-602
Comments
Speaker part #:
6600-1563-700
Comments
Service Manual