TM 1-1520-238-T-6
9–424
9–174. SHORT – EXISTS BETWEEN P461–D, P461–E, OR P461–F AND GROUND (cont)
9–174
17. Check for short between:
CB4-A1 and ground,
CB4-B1 and ground,
CB4-C1 and ground.
Does short exist?
YES
Replace LASER circuit breaker
(CB4) (TM 1-1520-238-23).
NO
Go to step 18.
18. With CB4 attached, detach wire at CB3-A1,
CB3-B1, CB3-C1. Check for short between
(A97):
J2-A and ground,
J2-B and ground,
J2-C and ground.
Does short exist?
YES
Repair shorted wire between:
CB3-A1 and CB4-A1,
CB3-B1 and CB4-B1,
CB3-C1 and CB4-C1.
Go to paragraph 9–172.
NO
Go to step 19.
19. Check for short between:
CB3-A1 and ground,
CB3-B1 and ground,
CB3-C1 and ground.
Does short exist?
YES
Replace TADS AC circuit
breaker (CB3)
(TM 1-1520-238-23).
NO
Go to step 20.
20. With CB3 attached, detach wire ends at CB1-A1,
CB1-B1, CB1-C1. Check for short between
(A97):
J2-A and ground,
J2-B and ground,
J2-C and ground.
Does short exist?
YES
Repair shorted wire between:
CB1-A1 and CB3-A1,
CB1-B1 and CB3-B1,
CB1-C1 and CB3-C1.
Go to paragraph 9–172.
NO
Go to step 21.
21. Check for short between:
CB1-A1 and ground,
CB1-B1 and ground,
CB1-C1 and ground.
Does short exist?
YES
Replace IHADSS circuit breaker
(CB1) (TM 1-1520-238-23).
NO
Repair shorted wire between:
CB1-B1 and P1-F,
CB1-C1 and P1-G.
Go to paragraph 9–172.
END OF TASK
