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
2bd.
2be.
Set FUNCTION switch to PS 115V &O
Set POWER SUPPLY FLAG switch to
RESET
Press INITIATE switch
PS FAIL fault indicator DS2
goes black
2bf.
PS ON indicator goes off
PS FAIL fault indicator
DS2 goes white
OVERLOAD FAIL indicator lights:
Replace power inverter assembly A6,
then sequence monitor circuit card
assembly AS
2bg.
Set FUNCTION switch to PS AMB
PWR and MODE switch to OVERVOLT
Press POWER SUPPLY ON switch
Set POWER SUPPLY FLAG switch to
RESET
Press INITIATE switch
2bh.
2bi.
PS ON indicator lights
PS FAIL fault indicator DS2
goes black
2bj.
PS ON indicator goes off
PS FAIL fault indicator
DS2 goes white
OVERLOAD FAIL indicator lights:
Replace sequence monitor circuit
card assembly A5
2bk.
2bl.
Press POWER SUPPLY ON switch
Momentarily set POWER SUPPLY FLAG
switch to RESET
PS ON indicator lights
PS FAIL fault indicator DS2
goes black
Same as step 2ax
2bm. Momentarily set POWER SUPPLY IMU
PS ON indicator goes off
PS FAIL fault indicator
DS2 goes white
PS ON indicator remains on: Replace
sequence monitor circuit card
assembly A5
OVERTEMP switch to ON
2bn.
2bo.
Set MODE switch to NO LOAD
Press POWER SUPPLY ON switch
CHARGE and BATTERY
indicators do not light
Indicator(s) does not light: Replace
sequence monitor circuit card
assembly A5
Set POWER SUPPLY FLAG switch to
RESET
Set POWER SUPPLY INTER LOCK
switch to OFF
2bp.
2bq.
PS FAIL fault indicator DS2
goes black
BATTERY indicator lights
Battery indicator does not light:
Replace sequence monitor circuit card
assembly A5
2br.
2bs.
Set POWER SUPPLY INTER LOCK
switch to ON
Adjust 0 to +40V external power source
to +19.0 (±0.5)V. Measure power supply
voltage at POWER SUPPLY PWR IN and
PWR RTN test jacks
BATTERY indicator goes off
BATTERY indicator does not flash off
and on: Replace sequence monitor
BATTERY indicator flashes
on and off
circuit card assembly A5
4-116