TM 1-1520-238-T-6
9–423
9–174. SHORT – EXISTS BETWEEN P461–D, P461–E, OR P461–F AND GROUND (cont)
9–174
8. With CB21 attached, detach wire at CB24-1.
Check for short between (A77)J2-30 and
ground.
Does short exist?
YES
Repair shorted wire between
CB24-1 and CB21-1.
Go to paragraph 9–172.
NO
Go to step 9.
9. Check for short between CB24-1 and ground.
Does short exist?
YES
Replace MSL L INBD LCHR AC
circuit breaker (CB24)
(TM 1-1520-238-23).
NO
Go to step 10.
10. Attach CB24, detach wire at CB26-1. Check for
short between (A77)J2-30 and ground.
Does short exist?
YES
Repair shorted wire between
CB26-1 and CB24-1.
Go to paragraph 9–172.
NO
Replace MSL L OUTBD LCHR
AC circuit breaker (CB26)
(TM 1-1520-238-23).
11. Check for short between J764-G and ground.
Does short exist?
YES
Go to step 12.
NO
Go to step 16.
12. Check for short between (A77)J2-31 and
ground.
Does short exist?
YES
Go to step 13.
NO
Repair shorted wire between
P767-31 and J764-G.
Go to paragraph 9–172.
13. Detach wire at CB16-1. Check for short between
(A77)J2-31 and ground.
Does short exist?
YES
Repair shorted wire between
(A77)J2-30 and CB16-1.
Go to paragraph 9–172.
NO
Go to step 14.
14. Check for short between CB16-1 and ground.
Does short exist?
YES
Replace FC FCC AC circuit
breaker (CB16)
(TM 1-1520-238-23).
NO
Go to step 15.
15. With CB16 attached, detach wire at CB20-1.
Check for short between (A77)J2-31 and
ground.
Does short exist?
YES
Repair shorted wire between
CB20-1 and CB16-1.
Go to paragraph 9–172.
NO
Replace ATTD IND circuit
breaker (CB20)
((TM 1-1520-238-23).
16. Detach wire ends at CB4-A1, CB4-B1,
and CB4-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:
(A97)J2-A and CB4-A1,
(A97)J2-B and CB4-B1,
(A97)J2-C and CB4-C1.
Go to paragraph 9–172.
NO
Go to step 17.
