NOTE
Use same method to check J138 as on
page 2.1-20.
Use Wiring Diagram
(see page 2.1-21).
1. Remove cable W32, plug P107 (1) from PATCH
PANEL BOX A10, jack J138 (2).
2. Measure resistance between 12 pairs of posts marked
TENT INTERFACE PANEL (3) and sockets on jack
J138 (2) as follows:
Post 1 (Bot) to socket A
Post 1 (Top) to socket B
Post 2 (Bot) to socket C
Post 2 (Top) to socket D
Post 3 (Bot) to socket E
Post 3 (Top) to socket F
Post 4 (Bot) to socket G
Post 4 (Top) to socket H
Post 5 (Bot) to socket J
Post 5 (Top) to socket K
Post 6 (Bot) to socket L
Post 6 (Top) to socket M
Post 7 (Bot) to socket N
Post 7 (Top) to socket P
Post 8 (Bot) to socket R
Post 8 (Top) to socket S
Post 9 (Bot) to socket T
Post 9 (Top) to socket U
Post 10 (Bot) to socket V
Post 10 (Top) to socket W
Post 11 (Bot) to socket X
Post 11 (Top) to socket Y
Post 12 (Bot) to socket Z
Post 12 (Top) to socket a
3. Does multimeter read 0 ohms for each measurement?
GO TO NEXT PAGE
1. Repair Patch Panel Box A10
(page 6-121).
2. Verify no faults found.
Change 3
2.1-23
TM 9-2350-261-34