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TM 11-5820-890-20-2
2-82
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 26
RT-A WILL NOT KEY FROM COMMANDER'S C 2298.
MONITOR SWITCH AT ALL POSITION.
(Sheet 1 of 3)
V
U
T
S
R
P
N
M
L
K
J
H
F
E
D
C
B
A
V
U
T
S
R
P
N
M
L
K
J
H
F
E
D
C
B
A
AM 1780 J504
NO
YES
1.0 to 2.5
V dc
?
1
SH 2
NO
YES
1.0 to 2.5
V dc
?
1. CONNECT COMMANDER'S CX 4723 TO
AM 1780 J504.
2. REMOVE CX 4723 FROM C 2298 J801/J804.
3. MEASURE VOLTAGE AT CX 4723,
PIN D TO PIN A (GND).
REPLACE CX 4723.
REPLACE COMMANDER'S
C 2298.
1. REMOVE COMMANDER'S CX 4723 FROM
AM 1780 J504.
2. MEASURE VOLTAGE AT AM 1780 J504,
PIN D TO PIN A (GND).
START
CX 4723
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