TM 1-1520-238-T-6
9–392
9–152. SHORT – EXISTS BETWEEN: P3-G, P3-H, P3-J AND GROUND; P3-K, P3-L,
9–152
P3-M OR P3-N, P3-P, P3-R AND GROUND
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
Equipment Conditions:
Ref
Condition
Paragraph 9–148
All pilot ac essential
bus 1 circuit breakers open
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 short between:
P3-G and ground,
P3-H and ground,
P3-J and ground.
Does short exist?
YES
Repair shorted wire between:
P3-G and CB38-A1,
P3-H and CB38-B1,
P3-J and CB38-C1.
Go to paragraph 9–150.
NO
Go to step 2.
2. Check for short between:
P3-K and ground,
P3-L and ground,
P3-M and ground.
Does short exist?
YES
Go to step 14.
NO
Go to step 3.
3. Check for short between P3-N and ground.
Does short exist?
YES
Go to step 4.
NO
Go to step 9.
4. Detach wire at CB81-A1. Check for short
between P3-N and ground.
Does short exist?
YES
Repair shorted wire between
P3-N and CB81-A1.
Go to paragraph 9–150.
NO
Go to step 5.
5. Attach wire ends at CB81. Detach wire at
CB41-A1. Check for short between P3-N and
ground.
Does short exist?
YES
Repair shorted wire between
CB81-A1 and CB41-A1.
Go to paragraph 9–150.
NO
Go to step 6.
6. Attach wire ends at CB41. Detach wire at
CB74-A1. Check for short between P3-N and
ground.
Does short exist?
YES
Repair shorted wire between
CB41-A1 and CB74-A1.
Go to paragraph 9–150.
NO
Go to step 7.
