ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-19. PS Testing and Troubleshooting - Continued
Malfunction
Normal indication
indication/corrective action
Test procedure
DVM indicates +22.5 to +24V Same as step 2by
2cc. Slowly decrease external +28V power
source until CHARGE indicator goes
off
PS ON indicator lights.
If power supply does not turn on,
2cd. Set MODE switch to NO LOAD. Set
BATTERY indicator goes
PS VEHICLE circuit breaker CB2 to
replace sequence monitor circuit card
OFF. Press POWER SUPPLY ON switch ON
assembly AS
2ce. Set PS BATTERY circuit breaker CB1
to OFF
2cf. Press POWER SUPPL TEST SET ON
switch-indicator to off
2cg. Set INPUT POWER PSTS circuit breaker
to OFF. Disconnect PS from PSTS
2ch. Increase external +28V power source to
+28V
2ci. Reconnect power supply fan connector
to J6
2cj. Adjust 0 to +40V external power
source to 0V
TEST COMPLETED
4-118
Change 5
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