LG GM200, Руководство по обслуживанию

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Only for training and service purposes LGE Internal Use Only
4. TROUBLE SHOOTING
LGE Internal Use Only
4.18 FM Radio Trouble
TEST POINT
CIRCUIT
Figure 4.18-1
TP2
TP1
MATCHING
CIRCUIT
Figure 4.18-2
) 0 2 2 1 8 0 (
2 0 4 1 3 0 0 F G N S > - 1 0 2 2 3 0 0 F G N S
X R _ M C P
) % 1 (
1 0 4 L F
2 D N G 1 D N G
T U O N I
6 6 1 A 8 G S 5 4 G 2 1 2 B F L
1 0 9 0 0 0 0 Y C F S
p 7 4
5 0 4 C
S T C _ T R A U
3 0 4 I
u 1 . 0 9 0 4 C
0 1 4 C
T X E V _ 3 9 V 2
I N D
1 1 4 C
u 1
S T R _ T R A U
8 1 4 C
H n 0 0 1
2 0 4 L
u 1 u 1 . 0
7 1 4 C
6 1 4 C
4 0 4 C
u 1 . 0
7 0 4 C
p 7 4
u 1 . 0
3 1 4 C
u 1
4 1 4 C
u 1
p 9 . 3
p 0 1
1 0 4 C
T S R _ T B
2 0 4 C
2 0 4 I
P U E K A W
1 0 4 I
1 0 4 R
K 0 5 1
N E _ O D L
K L C _ M C P
p 8 . 1
u 1
8 0 4 C
5 1 4 C
H n 2 . 2
1 0 4 L
7 F K A B F 0 5 4 2 S C A
1 0 4 T N A
2 0 4 1 3 0 0 F G N S
D E E F
1 C N
2 C N
T A B V
X T _ M C P
T J 1 0 6 - 5 0 0 1 M 1 - B H
3 0 9 0 0 0 0 H B F S
1 0 4 B F
X T _ U _ T B
p 0 0 0 1 3 0 4 C
u 1 . 0 6 0 4 C
2 0 4 R
I N D
2 1 4 C
u 1 . 0
D7
VSS4 VSS5
E4
VSS6
E5
F2
VSS7
F4
VSS8 VSS9
F5
N L A T X
3 K
2 K
P L A T X
6 B
V 3 R D D V
6 A
V 5 R D D V
2 E
F R D D V
F T D D V
1 E
3 J
O X D D V
C A D _ M F G E R V
5 A
5 B
T B _ G E R V
5 D
L T C _ G E R V
B2
VSS1
G2
VSS10 VSS11
G4
G10
VSS12 VSS13
H1
J2
VSS14
C2
VSS2 VSS3
D2
7 G
3 C D D V
4 C D D V
7 A
0 1 J
5 C D D V
4 A
1 M F D D V
2 M F D D V
1 B
3 B
3 M F D D V
4 M F D D V
4 J
4 K
5 M F D D V
O L D D V
1 J
8 K
1 _ 8 1 O D D V
2 _ 8 1 O D D V
8 A
9 F
3 _ 8 1 O D D V
1 _ 3 3 O D D V
9 A
0 1 E
2 _ 3 3 O D D V
3 _ 3 3 O D D V
8 J
L L P D D V
1 K
4 B
N I O P L
C N
4 D
2 H
S E R
1 G
N O I F R
P O I F R
1 F
N _ T S R
6 D
7 K
0 M T
7 J
1 M T
2 M T
6 F
6 J
3 M T
7 F
N _ S T C _ T R A U
N _ S T R _ T R A U
9 C
9 J
D X R _ T R A U
D X T _ T R A U
0 1 K
1 C D D V
5 G
9 D
2 C D D V
5 O I P G _ A
9 K
7 B
6 O I P G _ A
7 O I P G _ A
7 E
N N I _ F R M F
1 C
1 D
P N I _ F R M F
N L _ O C V M F
2 A
3 A
P L _ O C V M F
1 A
R A V C _ M F
0 1 H
0 O I P G
9 H
1 O I P G
2 O I P G
0 1 F
3 O I P G
9 G
6 E
4 O I P G
5 O I P G
6 G
6 O I P G
8 B
0 1 D
7 O I P G
0 B S 8 4 0 2 M C B
1 0 4 U
D N G O I D U A
5 J
L O I D U A
5 K
6 K
R O I D U A
9 B
0 O I P G _ A
1 O I P G _ A
0 1 C
0 1 B
2 O I P G _ A
3 O I P G _ A
0 1 A
9 E
4 O I P G _ A
3 0 4 L
1 0 2 5 6 3 0 Y S U E
T X E V _ 3 9 V 2
T N I _ T B
H n 6 5
C N Y S _ M C P
X R _ U _ T B
C N Y S _ M C P _ T B
X R _ M C P _ T B
K L C _ M C P _ T B
X T _ M C P _ T B
K C S _ S 2 I
I D _ S 2 I
S W _ S 2 I
L _ M F
N E _ O D L _ T B
T N I _ T B
S T R _ T R A U _ T B
S T C _ T R A U _ T B
X T _ T R A U _ T B
X R _ T R A U _ T B
P U E K A W _ T B
R _ M F
T B _ M 6 2
K 2 3 _ T B
N O K L C _ B B D _ T B
T E S E R _ T B
1 _ T N A _ M F
S A I B
6
1
1 C N
3
2 C N
3 C N
4
7
D N G P
N I _ F R
2
5
T U O _ F R
5 1 3 C
6 T 5 8 6 - A G M 2 0 3 U
p 0 0 0 1
K 1
0 1 3 R
p 0 0 0 1 8 1 3 C
T A B V
10K
R307
p 0 0 0 1
7 0 3 C
3
C N _ E C
2
D N G
5
PGND
D D V
1 4
T U O V
1 0 6 5 5 3 0 Y S U E
1 0 3 U F - R T - D 1 8 2 K 4 0 1 P R
p 0 0 0 1
7 1 3 C
3 0 3 L
H n 0 7 2
u 2 . 2
6 0 3 C
5 0 3 C
u 1
N E _ A N L _ M F
1 _ T N A _ M F
T N A _ M F
TP1
TP2
MATCHING
CIRCUIT