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TM 11-5820-890-20-2
2-102
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 28
NO RT-A MONITORING AT COMMANDER'S C 2298.
MONITOR SWITCH AT A.
(Sheet 4 of 6)
J
H
P
K
S
R
N
M
L
F
E
D
B
A
C
V
U
T
MB J5
V
U
T
S
R
P
N
M
L
K
J
H
F
E
D
C
B
A
MB J3,
AM 1780 J501, J504
NO
YES
SHORT
TO
GROUND
?
REPLACE AM 1780.
CHECK CONTINUITY AT AM 1780 J501,
PIN H TO PIN A (GND).
NO
YES
OPEN
?
REPLACE AM 1780.
1. SET THE RTs TO STBY.
2. SET THE VAA CB1 TO OFF.
3. REMOVE CX 13300 FROM AM 1780 J501.
4. CHECK CONTINUITY AT AM 1780
J501, PIN H TO J504, PIN M.
1. CONNECT CX 13300 TO J501.
2. REMOVE RTs FROM VAA.
3. REMOVE VAA FROM MB.
4. REMOVE CX 13313 FROM MB J3.
5. CHECK CONTINUITY AT MB J3, PIN H
TO J5 PIN F.
NO
YES
OPEN
?
REPLACE MB.
5
SH 5
2
SH 4
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