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 PHONE EXTENSION BOX A14 POST(S) INOPERATIVE (M1068A3 ONLY)—Continued 0114 00 2Y 1. Remove cable W32 plug P7 (1) from Tent Interface Panel jack J8 (2). 2. Measure resistance between socket A of jack J137 (3) and pin A of jack J8 (2). Repeat for sockets/pins B through a. 3. Measure resistance between sockets of J137 (3) and posts (4) as follows: Socket A to E117 Socket B to E118 Socket C to E119 Socket D to E120 4. Does multimeter read 0 ohms for each measurement? YES NO 2YN 1. Replace Tent Interface Panel Box A5 (WP 0833 00). 2. Verify no faults found. 0114 00-4