TM-9-2350-261-20-1

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL - VOLUME 1 OF 4

TM-9-2350-261-20-1 - Page 266 of 346

TM 9-2350-261-20-1

RADIO(S) DOES NOT WORK

0041 00

INITIAL SETUP:

Maintenance Level

Unit

Tools and Special Tools

Digital Multimeter (WP 0780 00, Item 43)

General Mechanic’s Tool Kit (WP 0780 00, Item 29)

Jumper Wire

Personnel Required

Unit Mechanic

Helper (H)

Equipment Condition

Carrier blocked (see your -10)

Ramp lowered (see your -10)

T

1.

Remove radio plug (1) from receptacle (2).

2.

Measure voltage between receptacle jack (2) pins A and B.

3.

Does multimeter read less than 17 volts?

TN

1.

Faulty radio or mount. Beyond unit

maintenance repair.

2.

Notify your supervisor.

Y

1.

Remove circuit 48 lead from battery positive terminal

(WP 0294 00).

2.

Install a jumper wire between circuit 48 lead and ground.

3.

Measure resistance between receptacle jack pin A and ground.

4 .

D oes mu ltimeter read 0 o h

m

s?

YN

1.

Remove jumper wire.

2.

Repair wiring harness circuit 48

(WP 0312 00).

3.

Verify no faults found.

2Y

1.

Remove jumper wire.

2.

Service carrier batteries (see your -10).

3.

Verify no faults found.

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