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TM 11-5820-890-20-2
2-23
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
CHART 1
VEHICLE MASTER CIRCUIT BREAKER TRIPS WHEN SET TO ON.
(Sheet 12 of 12)
11
SH 12
1. SET MASTER CIRCUIT BREAKER TO OFF.
2. IF REMOVED, CONNECT POWER CABLE TO
MB J1.
3. IF REMOVED, CONNECT CX 13292 TO MB J4.
4. REMOVE CX 13303 FROM MB J2.
5. SET MASTER CIRCUIT BREAKER TO ON.
1. REMOVE CX 13303 FROM PA MOUNT J1.
2. CHECK CONTINUITY AT PA MOUNT J1, PIN B
TO PIN A (GND).
NO
YES
CIRCUIT
BREAKER
TRIPS
?
NO
YES
SHORT TO
GROUND
?
REPLACE CX 13303.
REPLACE PA MOUNT.
REPLACE MB.
NOTE:
Master circuit breaker in this case applies
to that power circuit that supplies power
to intercomm/communications system.
This circuit is identified in vehicle
instructions.
PA MOUNT J1
D
C
B
A
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