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 TM 55-1905-220-14-3
Table 3-92. Ship's Course Indicator Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
Indicator inoperative (dial does not respond, dial lamps out).
Step 1.
No power.
Check 115V reference voltage supply, check fuses between indicator and gyro compass. If
fuse is blown, disconnect and check ship's wiring to terminals LC and LCC.
Correct fault and replace fuse.
2.
Dial response is meaningless, lamps are lit.
Step 1.
Improper power phase.
Check wiring to terminal LC and LCC. Correct as necessary. Check that power is actually
present.
3-244
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