TM 9--2350--292--20--1
COMMUNICATIONS SYSTEM FAILS TO OPERATE.
0033 00
THIS WORK PACKAGE COVERS:
Communications System Fails To Operate
INITIAL SETUP:
Tools and Special Tools
General mechanic’s tool kit (item 1, WP 0717 00)
Multimeter (item 84, WP 0717 00)
Equipment Conditions
Vehicle MASTER switch OFF (TM 9--2350--292--10)
Personnel Required
Two
Is 24 V dc present at both points?
no
yes
Repair (WP 0290 00) or
replace (WP 0314 00)
harness 4W100. Verify
fault is corrected.
A
B
Is continuity present at both points?
1. Disconnect harness 4W100 J1 and J4 from
communication connectors.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Place multimeter red lead on each connector
socket A (one at a time) and black lead to
ground. Check for voltage.
4. Turn MASTER switch OFF
(TM 9--2350--292--10).
Place one multimeter lead on each connector
socket B (one at a time) and black lead to ground.
Check for continuity.
Notify Commo.
Repair (WP 0290 00) or
replace (WP 0314 00) re-
ceptacle ground lead(s).
Verify fault is corrected.
yes
no
WARNING
Remove rings, bracelets, wristwatches,
and neck chains before working on any
vehicle. Jewelry can catch on equip-
ment and cause injury, or may short
across an electrical circuit and cause
severe burns or electrical shock.
END OF TASK
0033 00--1/2 blank
