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Page Title:
INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
5. INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE (CONT).
KNOWN INFO
TEST OPTIONS
8
Bulb(s) OK.
Voltage Test.
Is 24 vdc present at circuit
Connector P2 OK.
STE/ICE-R #89
Connector J2 OK.
breaker CB4 where wire 3
REASON FOR QUESTION
Wire 9 OK.
connects?
If 24 vdc is not present, wire 3 is
Circuit breaker CB6 OK.
faulty.
Wire 1 OK.
Run relay OK.
POSSIBLE PROBLEMS
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Auxiliary light switch faulty.
Wire 13 faulty.
Repair wire 3
Connector J1 faulty.
NO
(Para 8-48).
Connector P1 faulty.
Socket(s) faulty.
YES
9
KNOWN INFO
TEST OPTIONS
Bulb(s) OK.
Voltage Test.
Is 24 vdc present at circuit
Connector P2 OK.
STE/ICE-R #89
breaker CB4 where wire 40
Connector J2 OK.
REASON FOR QUESTION
Wire 9 OK.
connects?
If 24 vdc is not present, circuit
Circuit breaker CB6 OK.
breaker CB4 is faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
POSSIBLE PROBLEMS
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Auxiliary light switch faulty.
Wire 13 faulty.
Replace circuit
Connector J1 faulty.
NO
breaker CB4
Connector P1 faulty.
(Para 8-11).
Socket(s) faulty.
YES
2-108
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