Table 5-4. Power Distribution Box Troubleshooting Procedure

TM 32-6110-003-24&P

Step

Test Point

Test Equipment

Procedure

Normal Indication

If Indication is

Normal

Abnormal

NOTE

This procedure includes the major

components that may be defective

within the power distribution box.

The procedure does not test point-

to-point wiring within the power

distribution box.

Perform

measurement

checks

given

Proceed with step

Do not apply power

J1,J7,J2,J10,

described in paragraph 5-3.

paragraph 5-3.

to the unit. Repair

J3,J6, J9,J11,

wiring and proceed

J5,J4

with step 2 when all

measurements are

correct.

DC Input Tests

a. Verify all circuit breakers are set

Power supply,

MISSION

to on (in) position and MISSION

multimeter,

POWER

POWER switch is set to off

Connector

Indicator

(down) position.

assembly

P8,

Test cable W1

WARNING

Ground chassis before

applying power.

b. Turn power supply on and set for

+28 V dc output.

5-6