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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
5. Trouble shooting
GM310f service manual
Rx path circuit diagram
Rx path circuit diagram
TP2
TP3
TP1
TP4
M
S
G
E
S
C
P
S
C
D
0
5
8
M
S
G
3
2
4
D
N
G
5
D
N
G
4
2
X
T
_
M
S
G
E
_
0
5
8
M
S
G
1
1
2
1
1
X
R
_
0
5
8
M
S
G
3
1
2
X
R
_
0
5
8
M
S
G
9
X
T
_
S
C
P
_
N
C
P
1
X
R
_
N
C
P
6
1
2
X
R
_
N
C
P
7
1
1
X
R
_
S
C
P
8
1
9
1
2
X
R
_
S
C
P
VDD
7
2
2
0
0
9
1
_
A
M
D
C
W
0
0
1
2
_
A
M
D
C
W
0
2
0
5
8
_
A
M
D
C
W
1
2
2
T
N
A
CTRL1
3
CTRL2
4
5
CTRL3
6
CTRL4
1
X
R
_
M
S
G
E
4
1
5
1
2
X
R
_
M
S
G
E
1
1
D
N
G
8
2
D
N
G
0
1
3
D
N
G
1
0
0
1
L
F
7
1
0
5
D
p
2
.
2
6
2
0
1
C
3
2
0
1
C
2
1
0
1
C
p
2
.
2
p
2
.
2
H
n
8
1
3
0
0
1
L
9
3
0
1
C
H
n
1
.
5
6
0
0
1
L
p
2
.
2
5
0
0
1
L
6
3
0
1
C
H
n
7
.
4
p
2
.
2
p
2
.
2
7
3
0
1
C
4
0
0
1
L
H
n
8
1
p
2
.
2
2
3
0
1
C
p
2
.
2
2
4
0
1
C
B
L
_
T
U
O
A
P
_
M
S
G
B
H
_
T
U
O
A
P
_
M
S
G
TP1
TP2
TP3
TP4
Содержание GM310
Страница 1: ...Service Manual Model GM310 Internal Use Only Service Manual GM310 Date April 2009 Issue 1 0 ...
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