TM 1-1520-238-T-6
9–556
9–265. SHORT – EXISTS BETWEEN P5-1, P5-2, P5-3 AND GROUND
9–265
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
References:
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
Paragraph 9–149
Pilot circuit breaker panel
accessing – completed
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 wire at CB12-1. Check for short between
P5-1 and ground.
Does short exist?
YES
Go to step 2.
NO
Go to step 5.
2. Detach wire at CB52-1. Check for short between
P5-1 and ground.
Does short exist?
YES
Repair shorted wire between
P5-1 and CB52-1.
Go to paragraph 9–263.
NO
Go to step 3.
3. Attach CB52 wire Detach wire at CB9-1. Check
for short between P5-1 and ground.
Does short exist?
YES
Replace bus bar between CB52
and CB9, and check for foreign
material (TM 1-1520-238-23).
NO
Go to step 4.
4. Attach CB9 wire. Detach wire at CB14-1. Check
for short between P5-1.
Does short exist?
YES
Repair shorted wire between
CB9-1 and CB14-1.
Go to paragraph 9–263.
NO
Replace bus bar between CB14
and CB17, and check for foreign
material (TM 1-1520-238-23).
5. Detach wire at CB21-1. Check for short between
P5-3 and ground.
Does short exist?
YES
Go to step 6.
NO
Go to step 10.
6. Detach wire at CB37-1. Check for short between
P5-3 and ground.
Does short exist?
YES
Repair shorted wire between
P5-3 and CB37-1.
Go to paragraph 9–263.
NO
Go to step 7.
7. Attach CB37 wire. Detach wires at CB85-1,
CB53-1 and CB29-1. Check for short between
P5-3 and ground.
Does short exist?
YES
Replace bus bar between CB37
and CB39, and check for foreign
material (TM 1-1520-238-23).
NO
Go to step 8.
