INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE - continued

TM 10-3930-673-20-1

5. INSTRUMENT PANEL GAGE LIGHTS DO NOT OPERATE (CONT).

KNOWN INFO

TEST OPTIONS

Bulb(s) OK.

Voltage Test.

Is 24 vdc present at

Connector P2 OK.

STE/ICE-R #89

Connector J2 OK.

connector J3-F where wire 40

REASON FOR QUESTION

Wire 9 OK.

connects?

If 24 vdc is not present, wire 40 is

Circuit breaker CB6 OK.

fautly.

Wire 1 OK.

Run relay OK.

Wire 3 OK.

Circuit breaker CB4 OK.

POSSIBLE PROBLEMS

Wire 40 faulty.

Blackout light switch faulty.

Auxiliary light switch faulty.

Wire 13 faulty.

Repair wire 40

Connector J1 faulty.

(Para 8-48).

Connector P1 faulty.

Socket(s) faulty.

YES

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