LG GM310 Service Manual page 127

8. CIRCUIT DIAGRAM
1 2
P M C I
A
R 2 0 7
R T C _ O U T O N _ O
2 7 K
R 2 0 9
D I N
U S B _ O E n
U S B _ D A T _ V P
U S B _ S E 0 _ V M
V B A T
1 V 8 _ S D 2 V 5 _ V A U D B V B A T
B
2 V 5 _ V A U D A 2 V 8 5 _ V F M
B
C
D
C
U S B _ F S _ D P
D
U S B _ F S _ D M
P M R S T n
E
P M R S T n
F B 2 0 1 D
E
1 6 0 8 P M _ V C X O _ E N
E
B T _ V C X O _ E N
F
F
G
G
C
H
H
C 2 1 3 C 2 1 4 C 2 1 5 D 2 0 3
1 J
2 2 . u 2 2 . u 1 u L 2 0 2
2 J
R B 5 2 1 S 3 - 0 1 0 u H H
3 J
K
K
L
C 2 2 1
C 2 1 8
C 2 2 2 C 2 2 3 0 1 . u C 2 2 4 C 2 2 5
1 0 u 1 0 u 4 7 . u 2 2 . u 0 1 . u
1 6 0 8 1 6 0 8 1 6 0 8
1 6 0 8 1
D
2
C 2 6 4
2 2 . u
E
B L U E T O O T H + F M
A N T 2 0 1
N C 1
C 2 4 4 1 8 . p
N C 2 F E E D
C 2 4 6 1 0 0 p
F M _ A N T
L 2 0 3 C 2 4 5
N A
1 n H
C 2 5 3
F D I N
1 V 8 _ S D
G
H
1 2
LGE Internal Use Only
3 4 5
2 V 6 2 _ V O I
V U S B
V B A T V B A T 1 V 3 5 _ V P L L
R 2 0 2
4 7 . K
V B A T V B A T
R 2 0 3
C 2 0 1 4 7 . K
2 V 6 2 _ V O I
2 2 . u V B A T
1 6 0 8
1 6 0 8
F F 2 C 2 0 3
0 1 . u
R 2 1 4
1 0 0 K
C 2
1 %
1 6 0 8
1
R C V
2
V P N I
3
V M N I
1
D +
2
- D
3
R E S E T _ N
1
R E S E T 2 _ N
2
S L E E P 1 _ N
1
S L E E P 2 _ N V
2
V A U D O I A
1
V D D A U D O I A
U 2 0 1
2 P M B 6 8 2 1
V D D A U D O I B
1
V A U D O I B
2
V A U X
1
V D D A U X
S U 1 _ G A T E
S U 1 _ G N D
3
S U 1 _ F B
S U 1 _ S I E N S E
1
V D D S D 2
2
S D 2 _ F B
2
S D 2 _ F B L
6 0 8
V 8 5 _ V B T
V B A T 1 V 8 _ S D
1 V 8 _ S D
2 V 6 2
R 2 2 4 R 2 2 5 R 2 2 6 U 2 0 3 N L S X 3 3 7 3 M U T A G
1 8
V L V C C
D I N D I N D I N
R 2 5 0 2 7
O I _ V L 1 O I _ V C C 1
0
3 6
O I _ V L 2 O I _ V C C 2
4 5
G N D E N
C 2 4 2
1 0 T P 2 0 7
U A R T _ T X D 0 0 . 1 u
9 T P 2 0 8
U A R T _ R X D
1 1 T P 2 0 9
U A R T _ C T S B T _ U A R T _ R T S
8 T P 2 1 0
U A R T _ R T S B T _ U A R T _ C T S
6 2
B T _ A N T P C M _ N I B T _ P C M _ T X
3 8
P C M _ O U T B T _ P C M _ R X
3
P C M _ C L K B T _ P C M _ C L K
3 2 4
F M _ A N T P C M _ S Y N C B T _ P C M _ S Y N C
1 5
V A F R R A D O I _ O U T _ R
1 6
C 2 5 4 V A F L R A D O I _ O U T _ L
M 2 0 1 2 9
D I N 2 I C _ C L K
R B C A B - 5 6 1 A 2 6
2 I C _ D A T A
2 7
G P O I 6
1 8
X T A L _ N
C 2 5 5 2 2 p
1 9
X T A L _ P B T _ C L K
C 2 5 6 1 0 0 p
3 0
L P O _ N I C L K 3 2 K _ 1 V 8
1
G N D 1
5
G N D 2
7
G N D 3
1 2
G N D 4
2 0
G N D 5
3 1
G N D 6
1 4 3 9
T M 0 G N D 7
4 0
G N D 8
4 1
G N D 9
4 2
G N D 1 0
C 2 6 2
D I N
C 2 6 3
D I N
3 4 5
6 7 8
K D R 3 3 1 V
O V P _ V C H G
2
3 R 2 0 6
C 2 0 4 O V P _ V U S B
1
1 u 4 7 K
D 2 0 1
T A _ D E T E C T
R 2 1 0
C 2 0 5 4 7 K
3 3 u
1 V 3 5 _ C O R E 2 V 7 _ V R F 2 V 8 5 _ V R F 1 V 5 _ V R F 2 V 9 _ V M M E
1 1 0 1 . u
L 2 0 1
1 0 u H
V B A T 2 V 8 5 _ V L C D 2 V 1 1 _ R T C 2 V 9 _ V I S M 2 V 8 5 _ V B T 1 V 8 _ S D
C 1 1
V M M E
C 1 0
V D D M M E
D 1 0
V D D R F 2
D 1 1
V R F 2
E 1 0
V R F 3
E 1 1
D D R F 1 3 _ A F C
F 1 0
V R F 1
F 1 1
V V B I
G 1 1
V D D I S M V B I
G 1 0
V I S M
H 1 1
V A F C
H 1 0
V R T C
F B 2 0 2
H 9
V D D U M T S
1 J 1
V U M T S
F B 2 0 3
K 1 1
V D D S D 1
1 J 0
S D 1 _ F B
L 1 0 1 6 0 8
S D 1 _ F B L
C 2 1 9 C 2 3 1 C 2 3 3 C 2 3 4 C 2 3 5 C 2 3 6 C 2 3 7 C 2 3 8 C 2 3 9 C 2 4 0
4 7 . u 1 u 1 u 2 2 . u 2 2 . u 2 2 . u 2 2 . u 2 2 . u 2 2 . u 2 2 . u
1 6 0 8
_ V O I
B A T T E R Y C O N N E C T O R
C H A R G N I G C I
B T _ U A R T _ R X
B T _ U A R T _ T X
V B A T
C 2 4 3
0 0 . 1 u
C N 2 0 1
D 2
3
F B 2 0 7 1 K
2
B A T _ D I
1
D 1
_ E O C
C 2 4 7
3 9 p C 2 4 8 C 2 4 9 C 2 5 0 C 2 5 1 C 2 5 2
C H G _ E N
4 7 . u 1 0 p 5 6 p 3 p 1 8 p
1 8 . V 3 2 K c o l k c
R 2 3 2 4 7 K
C L K 3 2 K C L K 3 2 K _ 1 V 8
R 2 3 3
1 0 0 K
6 7 8
- 128 -
9 1 0 1 1 1 2
2 V 1 1 _ R T C
R e m o e t P o w r e O n
R 2 0 1
1 0 0 K
P W R O N
3
R 2 0 4 3 3 . M
2 Q 2 0 1
R P W R O N _ E N R P W R O N _ D B B
K T C 4 0 7 5 E
R 2 0 5 0
1
R 2 0 8
C 2 0 6
3 3 . M
2 2 . u
3
2 Q 2 0 2
K T C 4 0 7 5 E
1
E N D _ K E Y _ N I
R 2 1 6
1 0 0 K
R 2 1 7 1 0 K
E N D _ K E Y _ N I
R 2 1 8 D I N
K E Y N I 0
3
R 2 1 9
2 Q 2 0 3
E N D _ K E Y
K T C 4 0 7 5 E
1 0 K
1
R 2 2 0
K E Y O U T 0
1 0 0 K
E X T E R N A L R E S E T
2 V 6 2 _ V O I
N t o S M T 2 V 1 1 _ R T C
R 2 2 1
1 0 0 K
U 2 0 2
E X T R S T n 7 A 1 V C C 8
S P O W E R _ N I T 6 B 1 Y 1 1 P M _ N I T
_ R E S E T 5 Y 2 B 2 2 P M R S T n
4 3
G N D A 2
C 2 4 1
0 1 . u
N C 7 W Z 0 8 L 8 X
R 2 2 2 0
R 2 2 3 0
U S B _ V C H G
V B A T
V C H G
2 V 6 2 _ V O I
2 V 1 1 _ R T C U 2 0 4 S I L 9 2 2 1
1 3
P G N D
1
R 2 2 7
V D C
1 2
R 2 2 8 V D C _ B Y P O V P _ V C H G
1 0 0 K
2
1 0 0 K V U S B
1 1
B A T
3
_ P P R _ P P R
1 0
U S B _ B Y P O V P _ V U S B
4
_ C H G
9
V I D C
5
_ E N
8
G N D
6
I M N I
7
U I S B
1 1 7 m A 3 7 8 m A 6 0 0 m A
C 2 5 7 C 2 5 8 R 2 2 9 R 2 3 1 R 2 3 0 C 2 5 9 C 2 6 0 C 2 6 1
1 u 1 u 1 u 1 u 1 u
4 7 . K 1 8 K 1 1 3 . K
1 % 1 % 1 %
9 1 0 1 1 1 2
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