TM 5-3610-287-24
Organizational Troubleshooting (Cont)
Table 2-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CEILING LIGHTS DO NOT OPERATOR (CONT)
17.
WARNING
Turn off main power switch before performing
this task. Failure to do so may result in death
or serious injury.
Set MAIN POWER switch to OFF. Remove circuit breaker cover
Step 4.
panel. Set MAIN POWER switch to ON. Test voltage from
ground to wires marked 17 and 31 on blackout system relay.
Readings should be 110 +5 Vat.
--
If only 17 reads 110 5 Vat, replace relay (para 2-52).
If 17 reads O Vat, troubleshoot circuit breaker
(malfunction 14).
18.
DOME LIGHT DOES NOT OPERATE.
WARNING
HIGH VOLTAGE. When working on high voltage
components, always have an additional person
present. Keep one hand away from equipment to
reduce hazard of current flowing through vital
organs of body. Remove all jewelry from
fingers, wrists, and neck before working on
electrical components. Failure to observe this
warning may result in death or serious burns.
Check that external 12 Vdc power source is connected.
Step 1.
Connect external 12 Vdc power source.
Remove lens cover and bulb. Test voltage at bulb socket.
Step 2.
Operate switch. Reading should be 12 Vdc.
If reading is correct, replace 12-volt bulb.
