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Page Title:
BLACKOUT DRIVE LIGHT(S) DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
18. BLACKOUT DRIVE LIGHT(S) DO NOT OPERATE (CONT).
4
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at circuit
STE/ICE-R #89.
POSSIBLE PROBLEMS
breaker CB6 where wire 9 is
REASON FOR QUESTION
Connector P2 faulty.
connected?
Connector J2 faulty.
This question eliminates possible
Wire 9 faulty.
problems and determines where
Circuit breaker CB5 faulty.
troubleshooting continues.
Wire 1 faulty.
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 47 faulty.
Connector J1 faulty.
Go to Step 15 of
NO
Connector P1 faulty.
this fault.
Socket(s) faulty.
YES
5
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at circuit
Connector P2 OK.
STE/ICE-R #89.
breaker CB6 where wire 1 is
Connector J2 OK.
REASON FOR QUESTION
connected?
POSSIBLE PROBLEMS
If 24 vdc is not present, circuit
Wire 9 faulty.
breaker CB6 faulty.
Circuit breaker CB5 faulty.
Wire 1 faulty.
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 47 faulty.
Connector J1 faulty.
Replace circuit
NO
Connector P1 faulty.
breaker CB6
Socket(s) faulty.
(Para 8-11).
YES
2-326
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