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| TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-24
Control Unit Troubleshooting
(Sheet 6 of 12)
MODE SWITCH at RETRAN, SQUELCH switch at DIS.
TO PIN
FROM PIN
Inf
All other pins
X,FF,HH,MM,NN,t,s,a,Y
27 k
DD
GG
v
0
q
0
u
v
N
0 (VOL fully clockwise)
JJ
KK
0
PP
B
0
KK
KK
0
w
0
KK
d
0
x
y
510
x
c
0
A
JJ
0
E,D,C
e,f,F
0
Ground
b,Z,v
MODE SWITCH at RETRAN, SQUELCH switch at CARR.
TO PIN
FROM PIN
Inf
All other pins
X,FF,MM,NN,t,s,V
163 (VOL fully clockwise)
N
KK
27 k
DD
GG
Y
HH
0
v
0
q
0
v
u
N
0 (VOL fully clockwise)
JJ
PP
KK
0
x
0
y
c
510
x
KK
0
w
KK
d
0
0
PP
B
A
JJ
0
E,D,C
0
e,f,F
b,z
Ground
0
2-119
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