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TM 11-5820-890-20-2
3-7
3.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 3
CONTROL MONITOR DISPLAY INCORRECT.
(Sheet 2 of 4)
NO
YES
10 TO 30 OHMS
?
REPLACE VAA.
NO
YES
10 TO 30 OHMS
?
1
SH 2
1. SET VAA CB1 TO OFF.
2. REMOVE CX 13290 FROM CM J1 (CM SET TO
RADIO 1) OR J2 (CM SET TO RADIO 3).
3. MEASURE RESISTANCE AT CX 13290,
PIN B TO PIN C.
REPLACE CX 13290.
1. CONNECT CX 13290 TO CM J1 (CM SET TO
RADIO 1) OR J2 (CM SET TO RADIO 3).
2. REMOVE CX 13290 FROM VAA J9.
3. MEASURE RESISTANCE AT VAA J9,
PIN B TO PIN C.
NO
YES
OPEN
?
CHECK CONTINUITY AT CX 13290, PIN B
TO PIN A (GND).
1. REMOVE CX 13290 FROM VAA J9.
2. CHECK CONTINUITY AT VAA J9,
PIN B TO PIN A (GND).
NO
YES
OPEN
?
REPLACE VAA.
REPLACE CX 13290.
3
SH 4
E
D
C
F
B
A
E
D
C
F
B
A
VAA J9
CX 13290
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