TM 5-3610-287-24
Organizational Troubleshooting (Cont)
Table 2-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
ACTION
3.
EMERGENCY LIGHT SET LAMPS ARE DIM OR FAIL TO LIGHT WHEN TESTED.
Check that toggle switch is ON.
Step 1.
Set toggle switch to ON.
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.
Set toggle switch to OFF and unplug emergency light
Step 2.
set. Remove front cover and check for broken or
loose wires.
Repair or replace wires. Refer to figure 2-1, Emergency
Light Set Simplified Schematic, at end of trouble-
shooting table.
Set toggle switch to OFF and plug in emergency light set.
Step 3.
Test voltage across B- terminal and B+ terminal on circuit
card. Reading should be 6.5 +0.3 Vdc.
If reading is correct, go to step 6.
Test voltage on circuit card from CT to X1, then from CT to
Step 4.
X2. Reading should be 8.8 +1 Vac.
If reading is not correct, replace transformer (para
Step 5.
Unplug emergency light set. Remove red lead from battery
post. Set toggle switch to ON and test continuity across
toggle switch terminals. Reading should be 0 ohms.
