Install guide

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