TM 1-1520-238-T-6
9–230
9–54.
EXT PWR INDICATOR – IS LIGHTED WHEN EXT PWR ACCESS DOOR IS
9–54
CLOSED
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. Detach P18.
Does EXT PWR indicator stay lighted?
YES
Go to paragraph 9–333 to
troubleshoot pilot
caution/warning system.
NO
Go to step 2.
2. Detach wires from EXT PWR access door switch
S13.
Does EXT PWR indicator stay lighted?
YES
Go to step 3.
NO
Replace EXT PWR access door
switch S13 (TM 1-1520-238-23).
3. Identify and detach wires from (A402):TB2-33-K
and TB2-33-J. Check for short between:
P430-A1 and ground,
J16-B6 and ground,
P440-B6 and ground,
(A402)J6-A1 and ground.
Does short exist?
YES
Repair shorted wire.
Go to paragraph 9–47.
NO
Replace terminal board
(A402)TB2-33
(TM 1-1520-238-23).
END OF TASK
