TM 9-2350-277-20-1
NO POWER FROM UPS POWER EXTENSION BOX A18 (M1068A3 ONLY)—Continued
0098 00
Y
1. Remove cable W252 plug P1 (1) from UPS Power Extension Box
A18 jack J1 (2).
2. Measure resistance between jacks J1 (2), J2 (3), J3 (4), J4 (5), J5
(6), and J6 (7) of UPS Power Extension Box A18 as follows:
J1 socket A to J2, J3, J4, and J5 socket H
J1 socket B to J2, J3, J4, and J5 socket N
J1 socket D to J2, J3, J4, and J5 socket G
J1 pin A to J6 socket A
J1 pin B to J6 socket B
J1 pin D to J6 socket C
3. Does multimeter read 0 ohms for each measurement?
YES
NO
YN
1. Replace/repair UPS Power Extension
Box A18 (WP 0836 00).
2. Verify no faults found.
2Y
1. Faulty ATCCS UPS Power. Beyond unit maintenance repair.
2. Notify supervisor.
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