TM 9-2320-362-14&P
Table 3-2.
Unit Troubleshooting (Cont’d)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. SHELTER HAS NO POWER AND INCANDESCENT LAMP ON POWER INTERFACE BOX
IS NOT LIT
NOTE
l
When measuring voltage, measure against ground.
l
When measuring +28 VDC, use ± 2 VDC for tolerance.
WARNING
Serious injury could result if safety pre-
cautions are not followed when troubleshooting
this equipment.
Step 1.
Visually check circuit breaker on power interface box
to ensure it is on.
If circuit breaker is on, go to step 2.
If circuit breaker is NOT on, go to step 4.
Step 2.
Using multimeter, measure voltage on power interface box
terminals 11E4 and 11E5.
If multimeter displays about +28 VDC, replace faulty
power interface box (para 3-29).
If multimeter does NOT display about +28 VDC, go to
step 3.
Step 3.
Check voltage on battery terminals.
If multimeter displays about +28 VDC, replace faulty
power cables (para 3-30).
If multimeter does NOT display about +28 VDC, replace
faulty battery (TM 9-2320-280-20).
Step 4.
Remove power cables W68, W70, and W71 from terminals on
power interface box.
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