TM 55-1510-220-MTF
TROUBLESHOOTING GUIDE D - ANNUNCIATOR PANEL
CONDITION
PROBABLE CAUSE
D1. Annunciator light (annunciator panel) will not illuminate when annunciator press-to-test switch is
pressed.
a.
Defective placard light.
b.
Defective annunciator fault detection module.
c.
Defective wiring.
D2. Master warning light will not illuminate for any red faults.
a.
Defective master warning light.
b.
Defective fault detection module.
c.
Defective annunciator control module.
D3. Depressing the press-to-test switch has no effect on master warning system operation.
a.
Defective switch.
b.
Defective wiring.
c.
Defective circuit breaker.
D4. Dim control does not function properly.
a.
Defective rheostat switch.
b.
Defective wiring.
c.
Defective annunciator control module.
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