TM
11-6625-3041-30/TO
33A1-8-908-12
2-6. SG-1139 CHECK PROCEDURE (CONT)
If only one indicator lights when LAMP TEST is pressed:
Step
2
cont
Swap that indicator lamp with the POWER indicator lamp. If
indicator now lights, cause is lamp. Replace (refer to
TM 11-6625-3041-12), and repeat step 2.
If indicator still does not light, possible cause is AC Input
card A2. Replace (refer to TM 11-6625-3041-12), and repeat
step 2.
If neither indicator lights when LAMP TEST is pressed:
Swap one indicator lamp with the POWER indicator lamp. If
indicator now lights, cause is both FAULT and POWER SUPPLY
indicators. Replace (refer to TM 11-6625-3041-12), and repeat
step 2.
If indicator does not light, nor do any other front panel indi-
cators, possible cause is LAMP TEST pushbutton. Evacuate to
direct support for repair.
2-6