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TM 11-5820-890-20-2
2-160
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 43
NO RT MODULATION AT SRM FROM COMMANDER'S C 2298.
(Sheet 9 of 12)
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, J4
Z
Y
d
b
a
S
R
X
W
V
T
U
Q
P
N
M
L
K
J
F
E
D
C
B
A
G
H
PSA J2
A
D
B
C
E
F
K
S
U
T
L
H
M
V
R
P
PSA P1
N
J
NO
YES
OPEN
?
REPLACE MB.
1. IF AM 1780 IS CONNECTED TO MB J3,
CHECK CONTINUITY AT MB J3, PIN U
TO J5, PIN M.
2. IF AM 1780 IS CONNECTED TO MB J4,
CHECK CONTINUITY AT MB J4, PIN U
TO J5, PIN U.
NO
YES
OPEN
?
REPLACE PSA.
1. IF AM 1780 IS CONNECTED TO MB J3,
CHECK CONTINUITY AT PSA P1, PIN M
TO J2, PIN E.
2. IF AM 1780 IS CONNECTED TO MB J4,
CHECK CONTINUITY AT PSA P1, PIN U
TO J2, PIN E.
REPLACE CX 13300.
10
SH 9
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