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4 . TROUBLE SHOOTING
4.13 Microphone Trouble
TEST POINT
CIRCUIT DIAGRAM
M
I
C
_
P
M
I
C
_
N
2
V
5
_
V
M
R
2
1
R
2
0
3
2
2 .
K
R
2
0
7
R
2
0
8
1
0
0
0
C
2
1
0
3
9
p
C
2
1
1
R
2
1
0
1
0
0
0
1 .
u
I
C
0
0
K
C
2
0
1
C
2
0
2
1
0
u
3
9
p
C
2
0
9
3
9
p
C
2
1
3
C
2
1
4
R
2
1
4
3
9
p
3
9
p
2
2 .
K
C
L
O
S
E
T
O
M
I
C
- 82 -
M
I
C
2
0
0
1
2
O
B
4
1 -
5
L
4
- 2
C
3
3
V
A
2
0
0
V
A
2
0
1
A
V
L
5
M
0
2
2 -
0
0
A
V
L
5
M
0
2
2 -
0
0
L
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