TM 55-1905-223-24-14
Table 2-3. Unit Maintenance Troubleshooting - CONT
Malfunction
Test or Inspection
Corrective Action
GYRO COMPASS SYSTEM - Continued
24.
Open scale repeater does not track gyro compass and lamps are lit.
STEP 1.
Check to see if switch unit is defective.
Replace switch unit (para. 2-15).
25.
Both open scale repeaters (pilothouse and steering gear compartment) do not track gyro compass and lamps are
not lit.
STEP 1.
Check to see if switch unit is defective.
Replace switch unit (para. 2-15).
26.
Open scale repeater lamps do not dim when bulkhead mounting bracket dimmer control is operated.
STEP 1.
Check to see if bulkhead mounting bracket dimmer circuit is defective.
Replace bulkhead mounting bracket (para. 2-22).
27.
All bearing repeater lamps not lit.
STEP 1.
Check to see if relay transmitter is defective.
Replace relay transmitter (para. 2-16).
28.
Bearing repeater lamp(s) not lit, repeater operates normally.
STEP 1.
Check for defective lamp(s).
Replace bearing repeater lamp(s) (para. 2-21).
29.
Bearing repeater lamps do not dim when dimmer control on pelorus stand operated.
STEP 1.
Check to see if pelorus stand dimmer circuit is defective.
Replace pelorus stand (para. 2-23).
30.
Bearing repeater does not track gyro compass, lamps lit.
STEP 1.
Check to see if relay transmitter is defective.
Replace relay transmitter (para. 2-16).
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