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 BLACKOUT DOME LIGHTS DO NOT WORK (M1068A3 ONLY)—Continued 0041 00 A2Y 1. Remove lead 38B (1) from adapter plug P3 (5). 2. Turn MASTER SWITCH to ON. 3. Measure voltage between lead 38B (4) and ground. 4. Does multimeter read 17 volts or more? YES NO A2YN 1. Go to Dome Lights Malfunction (M577A3 Only) (WP 0040 00). A3Y 1. Replace adapter (WP 0849 00). 2. Verify no faults found. 0041 00-3/4 blank