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TM 11-5820-890-20-2
2-52
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 12
VAA CB1 TRIPS WHEN SET TO ON.
(Sheet 5 of 5)
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1. CONNECT CX 13300 TO AM 1780 J501.
2. REMOVE CX 13300 FROM CX 13313 OR (J3)
CX 13417.
3. CHECK CONTINUITY AT CX 13300, PIN C TO
PIN A (GND).
NO
YES
SHORT
TO
GROUND
?
REPLACE CX 13300.
NO
YES
SHORT
TO
GROUND
?
1. CONNECT CX 13300 TO CX 13313 OR
CX 13417.
2. REMOVE VAA FROM MB.
3. REMOVE CX 13313 OR CX 13417 FROM MB
J3.
4. CHECK CONTINUITY AT CX 13313 OR
CX 13417, PIN C TO PIN A (GND).
REPLACE CX 13313 OR (J3)
CX 13417.
1. THE RADIO SUBSYSTEM IS FAULTY.
2. GO TO THE APPROPRIATE CHAPTER FOR
RADIO MAINTENANCE.
3. USE TROUBLESHOOTING CHART FOR VAA
CB1 TRIPS.
NOTE:
The normal installation connects the
CX 13313 or CX 13417 and CX 13300
from MB J3 to the AM 1780 connector
J501. Connector J501 provides the dc
power to the rest of the VIC system.
MB J4 could be a possible connection
for some systems.
NOTE:
If CX 13417 present check continuity
at connector where CX 13300 was
connected.
1
SH 5
CX 13300
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CX 13313 P1
CX 13417 J1, J2
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