TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 NO POWER TO AC CIRCUITS (M1068A3 ONLY)—Continued 0107 00 5Y 1. Set BLACKOUT ENABLE switch to upward position. 2. Measure resistance of circuit 20B between power enclosure jack J37 (1), socket A, and BLACKOUT ENABLE switch S1 (2), terminal 3. 3. Does multimeter read 0 ohms? YES NO 5YN 1. Faulty lead 20B. Beyond unit maintenance repair. 2. Notify supervisor. 0107 00-7