TM-9-2350-238-20-1

HULL AND RELATED COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL

MAY 1994

TM-9-2350-238-20-1 - Page 302 of 1364

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Step 2.

Disconnect lead 37A from IR RCVR switch. Place red probe in lead 37A.

Ground black probe. Set MASTER switch ON. If multimeter indicates

about 24 volts, connect lead and go to step 3. If multimeter indicates no

voltage, repair lead 37A between driver’s compartment dome light and

IR RCVR switch. Refer to page 2-371. Set MASTER switch OFF.

Step 3.

Disconnect lead 137 from IR RCVR switch. Connect multimeter to

IR RCVR switch connector pins. If multimeter indicates 0 ohms, repair lead

137 between IR RCVR switch and utility outlet. Refer to page 2-371. If

multimeter indicates infinity, replace IR RCVR switch. Refer to page 2-566.

Connect leads (137 and 37A).

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