TM 1-1520-238-T-6
9–334
9–119. ALL PILOT INSTRUMENT EDGE-LIGHTED PANELS – DO NOT LIGHT
9–119
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 1-1520-238-23
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
1. Check for 5 VDC at P100-A1.
Is voltage present?
YES
Go to step 3.
NO
Go to step 2.
2. Check for open between P109-a and P100-A1.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–113.
NO
Replace multi-channel dimming
controller (TM 1-1520-238-23).
3. Check for 5 VDC at P100-A4.
Is voltage present?
YES
Go to step 5.
NO
Go to step 4.
4. Check for open between P109-d and P100-A4.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–113.
NO
Replace multi-channel dimming
controller (TM 1-1520-238-23).
5. Check for open between:
P100-A2 and P109-b,
P100-A3 and P109-c,
P100-A5 and P109-e,
P100-A6 and P109-f.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–113.
NO
Replace pilot EXT LT/INTR LT
panel (TM 1-1520-238-23).
END OF TASK
