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 AC/DC INPUT TO ATCCS UPS POWER BOX (M1068A3 ONLY)—Continued 0100 00 4Y 1. Set MASTER SWITCH to OFF. 2. Open front cover on ATCCS UPS Storage Box and remove cable W42 plug P1 (1) from UPS jack DC IN. 3. Measure resistance between pins of plugs P2 (2) and P1 (1) of cable W42 as follows: P2 pin A to P1 pin A, E, and F P2 pin B to P1 pin B, C, and D 4. Does multimeter read 0 ohms for each measurement? YES NO 4YN 1. Replace cable W42 (WP 0852 00). 2. Verify no faults found. 5Y 1. Faulty ATCCS UPS Power. Beyond unit maintenance repair. 2. Notify supervisor. 0100 00-6