TM 55-1510-215-MTF
TROUBLESHOOTING GUIDE D - CAUTION PANEL
CONDITION
PROBABLE CAUSE
D1. Placard light (annunciator panel) will not illuminate when
press-to-test button is pressed.
a.
Defective placard light.
D2. Fault warning light will not flash for any faults.
a.
Defective fault warning light.
b.
Defective fault warning light resistor.
c.
Defective annunciator control box.
D3. Depressing the press-to-test switch has no effect on fault
warning system operation.
a.
Defective switch.
b.
Defective annunciator control box.
D4. Dim control does not function properly.
a.
Defective rheostat.
b.
Defective dim bias resistor.
c.
Defective annunciator control box.
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