Table 3-2. Self-Test - Continued - TM-5-6675-309-140032

ARMY TM 5-6675-309-14

MARINE CORPS TM 08840A-14/1

Table 3-2. Self-Test - Continued

Normal indication

Test procedure

DVM indicates -9.9 to -10.1V

1j. Connect DVM positive test lead to SELF TEST

-10V test jack and negative test lead to SELF

TEST PWR RTN test jack

NOTE

Keep DVM connected as above until told to change

Following switch-indicator and indicators go on:

1k. Press POWER SUPPLY TEST SET LAMP TEST

switch-indicator to on

OVERLOAD FAIL

CHARGE/BATTERY

PS ON/COMP PS ON

OVERTEMP

2. UUT INPUT POWER SAFETY

2a. Set MODE switch to OVERVOLT

2b. Jumper SELF TEST -10V test jack to POWER

DVM indicates -9.9 to -10.1V

SUPPLY PWR IN test jack

2c. Set INPUT POWER UUT circuit breaker to ON

The INPUT POWER UUT circuit breaker trips

off immediately and the DVM indicates -9.9

to -10.1V

2d. Press POWER SUPPLY TEST SET ON switch-

POWER SUPPLY TEST SET ON goes off and

indicator to off

the DVM indicates -0.1 to +0.1V

Ensure that variable DC power supply is not energized.

NOTE

Do not connect W309 or W310 or erroneous readings

may result.

2e. Connect cables W301, W302, and W306 as shown

in figure 3-2. Do not connect P1 connectors of

cables W301 and W302

2f. Press POWER SUPPLY TEST SET ON switch-

POWER SUPPLY TEST SET ON lights

indicator to ON

2g. Set SELF TEST switch to TIMERS

PS ON indicator goes on. OVERTEMP indicator

lights 45 to 75 seconds after the switch is set

NOTE

To repeat the test, reinitialize by setting SELF TEST

switch to SWITCHES and back to TIMERS.

3-10