Circuit Diagram - LG gd350 Service Manual

7. CIRCUIT DIAGRAM

1 6 1 5 1 4
L
O J 1 0 1 O J 1 0 0
K
J L C D _ D I
B A T _ D I
R F _ T E M P
F M _ A N T
C 1 3 2
4 7 . n
G S M _ O U T
B S 2
R X 1 2
R X 1 2 X
R X 3 4
I
R X 3 4 X
B S 1
V D D T R X
V L O G C I
D C S _ P C S _ O U T
T X _ E N
B T _ T X D
C 1 3 3 C 1 3 4
B T _ R X D
1 u 1 8 p B T _ R T S
B T _ C T S
H
U A R T _ T X
2 V 8 5 _ V I S M
U A R T _ R X
n L C D _ R E S E T
X 1 0 0 E X S 0 0 A C - S 0 1 0 0 0
E O C
4 3
G N D X T A L U S B _ D P
1 2
T E R 1 T E R 2 U S B _ D M
2 6 M H z
I S M _ D A T A
I S M _ C L K
C 1 1 4
I S M _ R S T
0 1 . u
G
u S D _ C M D
u S D _ D 0
u S D _ C L K
u S D _ D 1
u S D _ D 2
u S D _ D 3
S W F I
T D O
T I D
T M S
T C K
F
n T R S T
n L E D _ R E S E T
K E Y _ B L _ E N
B T _ C L K
L D O _ C N T
U S W _ N I T
B T _ D B B _ N I T
E
D
U A R T P O R T
V B U S _ U S B
C
V B A T
U A R T 1 0 0
3 G 2 5 . G
1
G N D G N D
2 T P 1 0 3
R X R X U A R T _ R X
3 T P 1 0 4
T X T X U A R T _ T X
4
V C H A R N C 1
5
O N _ S W T P 1 0 5 P W R O N
O N _ S W
6
V B A T
B V B A T
7
P W R N C 2
8
U R X D N C 3 U S B _ D M
9
U T X D N C 4 U S B _ D P
1 0 T P 1 0 6
D S R D S R
1 1
R T S
1 2
C T S
A
1 6 1 5 1 4
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
1 3 1 2 1 1 1 0
F B 1 0 0
7 5
C 1 1 5
0 1 . u
C 1 0 0 C 1 0 4 C 1 0 2 C 1 0 3 C 1 0 5 C 1 0 6 C 1 0 7 C 1 1 1 C 1 1 2
C 1 0 1 C 1 1 6 C 1 1 7 C 1 1 8 C 1 2 0 C 1 1 9 C 1 2 1 C 1 2 2 C 1 2 3 C 1 2 4
3 3 u
2 2 u 2 2 . u 2 2 . u 0 1 . u 0 1 . u 0 1 . u 0 1 . u 2 2 0 n 0 1 . u
4 7 n 4 7 n 4 n 7
D I N 1 u 4 7 0 n 4 7 0 n 0 1 . u 2 2 0 n
N 1 2
M 0
T 1 1
M 1
R 1 1
M 2
N 1 1
V D D _ F M R
M 1 0
F M R N I
M 1 1
F M R N I X
T 1 5
C P 1
R 1 5
C P 2
A 1 5
T X 1
A 1 4
F E 2
D 1 6
R X 1 2
C 1 6
R X 1 2 X
F 1 6
R X 3 4
E 1 6
R X 3 4 X
C 1 4
V D E T
B 1 3
P A B S
C 1 3
P A B A I S
B 1 6
F E 1
B 1 5
T X 2
C 1 2
P A E N
B 1 4
V D D T R X
H 8
U S F I 2 _ T X D _ M T S R
J 7
U S F I 2 _ R X D _ M R S T
H 7
U S F I 2 _ R T S _ N
J 8
U S F I 2 _ C T S _ N
A 2
U S F I 1 _ T X D _ M T S R
B 3
U S F I 1 _ R X D _ M R S T
A 3 U 1 0 0
U S F I 1 _ R T S _ N
B 2
U S F I 1 _ C T S _ N
K 1 1
D P L U S
K 1 2
D M N I U S
B 1 1
X O X
A 1 1
X O
M 8
V I S M
G 3
I S M I _ O
G 2
I S M _ C L K
G 4
I S M _ R S T
H 1
M M C _ I C M D
H 3
M M C _ I D A T _ 0
2
H
M M C _ I C L K
H 6
M M C _ I D A T _ 1
G 5
M M C _ I D A T _ 2
K 5
M M C _ I D A T _ 3
H 1 2
S W F I _ T X R X
J 1 5
T D O
J 1 6
T I D
G 1 6
T M S
H 1 6
T C K
H 1 5
T R S T _ N
K 1 6
T I R G _ N I
J 1 3
M O N 1
J 1 2
M O N 2
C 4
M O N 3
G 1 1
F S Y S 1
F 1 1
F S Y S 2
J 1 1
I D G U P _ C L K
H 1 1
I D G U P 1
G 1 0
I D G U P 2
J T A G
1 V 8 1 _ V D D
C N 1 0 0
G 1 G 2
1 1 0
T C K
2 9
E N D _ K E
3 8
T M S
4 7
n T R S T T D O
5 6
n R E S E T T I D
G 3 G 4
D I N
1 3 1 2 1 1 1 0
9 8 7 6
R 0 1 9
V B A C K U P
4 7 . K
1
R 1 1 0
2
C 1 1 3 C 1 2 5 3 9 . K
3 Q 1 0 0
R 1 1 1
1 u 0 1 . u
4 0 7
R 1 1 3
L D O _ O U T
1 0 0 K
K 3
A _ D 0 A _ D _ 0 0
K 2
A _ D 1 A _ D _ 0 1
L 1
A _ D _ 0 2
A _ D 2
M 1
A _ D _ 0 3
A _ D 3
N 3
A _ D _ 0 4
A _ D 4
M 2
A _ D 5 A _ D _ 0 5
N 1
A _ D 6 A _ D _ 0 6
P 2
A _ D 7 A _ D _ 0 7
K 1
A _ D 8 A _ D _ 0 8
L 4
A _ D 9 A _ D _ 0 9
L 2
A _ D _ 1 0
A _ D 1 0
L 3
A _ D _ 1 1
A _ D 1 1
N 2
A _ D _ 1 2
A _ D 1 2
P 5
A _ D 1 3 A _ D _ 1 3
P 1
A _ D 1 4 A _ D _ 1 4
P 3
A _ D 5 1 A _ D _ 1 5
R 4
n W R
W R _ N
J 1
n R D
R D _ N
R 1
A _ D 6 1 A _ D _ 1 6
J 4
A _ D 7 1 A _ D _ 1 7
J 2
A _ D 8 1 A _ D _ 1 8
H 4
A _ D 1 9 A _ D _ 1 9
P 4
A _ D _ 2 0
A _ D 0 2
R 2
A _ D _ 2 1
A _ D 2 1
J 3
A _ D _ 2 2
A _ D 2 2
T 3
A _ D 2 3 n L B
N 4
A _ D 4 2 n U B
K 4
C S 0 _ N n R O M _ C S
M 3
C S 1 _ N n R A M _ C S
R 3
n A D V
A D V _ N
J 6
n W A T I
W A T I _ N
P 9
A N A M O N
T 2
B F C L K 0 M E M _ C L K
K 1 5
F S Y S _ E N F S Y S _ E N
M 1 5
R C V _ N
E P N
M 1 6
R C V _ P
E P P
R 1 4 V M C I
H S _ L
H S L
T 1 4
H S _ R
H S R
N 1 6
L S N
N 1 5
L S P
R 1 2
M C I _ N
M C I N 1
T 1 2
M C I _ P
M C I P 1
R 1 3
H S _ M C I _ N
M C I N 2
T 1 3
H S _ M C I _ P
M C I P 2
P 2 1
V M C I
P 1 3
V U M C I
R 1 0
A C D
P 1 1
A G N D
T 1 0
V R E F
A 1 6
N C 1
C 1 7 2 C 1 2 6 C 1 2 8 C 1 2 9 C 1 3 0 C 1 4 9 C 1 3 1
T 1 6
N C 2
A 1 2 2 0 n 4 7 p 4 7 p 4 7 p 4 7 p 1 n 1 n
N C 3
T 1
N C 4
F 9
V D D F S
1 V 8 1 _ V D D
R 1 1 7
2 2 . K
R 1 1 6
2 2 . K
F C 1 - 3 5
2 1
3 2 7 . 6 8 K H z
X 1 0 1
C 1 3 5 C 1 3 6
2 p 7 2 2 p
P O W E R O N
R 1 2 8
Y P W R O N
1 K
9 8 7 6
- 119 -
5 4 3 2
M E M O R Y 5 ( 1 2 N O R / 1 2 8 p S R A M : A D M U X T y p e )
1 V 8 1 _ V D D
U 1 0 1
A 1
N C 1
R 1 0 0 H 8 A 1 4
P _ C R E N C 2
C 3
1 0 0 K N C 3
D 3 C 1 2
n W A T I
W A T I _ N C 4
H 3
N C 5
C 7 H 1 2
n L B
R _ L B _ N C 6
C 8 K 1
n U B R _ U B _ N C 7
H 7 K 1 4
n R A M _ C S R _ C S _ N C 8
D 6 G 1 2
M E M _ C L K C L K A D Q 0 A
G 1 1
1 V 8 1 _ V D D A
A D Q 1
D 8 F 9
n W R A
W E _ A D Q 2
F 1 2 F 8
n R D A
O E _ A D Q 3
G 7
A D Q 4 A
E 6 G 6
n A D V A V D _ A D Q 5 A
F 5
A D Q 6 A
E 1 1 F 4
n R O M _ C S F 1 _ C E _ A D Q 7 A
C 4 F 1 1
A
R 1 0 1 F 2 _ C E A D Q 8
F 1 0
A
A D Q 9
D I N E 8 G 9
n R E S E T A
F _ R S T _ A D Q 1 0
E 9 G 8
F _ W P _ A D Q 1 1 A
H 1 1 F 7
F _ D P D A D Q 1 2 A
F 6
A D Q 1 3 A
D 7 G 4
V C C A D Q 1 4 A
G 3
A
D 1 0 0 A D Q 1 5
E 3
V C C Q 1
G 1 0 E 4
A
V C C Q 2 A 1 6
H 4 D 1 1
V C C Q 3 A 1 7 A
E 1 0
A 1 8 A
D 5 D 1 0
V S S 1 A 1 9 A
E 1 2 E 5
V S S 2 A 2 0 A
F 3 D 4
A
V S S 3 A 2 1
G 5 D 1 2
A
V S S 4 A 2 2
E 7
A 2 3
D 9 C 1 1
V P P A 2 4
C 1 0 9 C 1 1 0 C 1 5 0 C 1 0 8
1 u 0 1 . u
1 u 0 1 . u
I S M C O N . N
2 V 8 5 _ V I S M
2 V 8 5 _ V I S M
J 1 0 0
4 1
C 5 C 1
5 2
C 6 C 2 I S
6 3
I S M _ D A T A C 7 C 3 I S M
1 0 7
G N D 4 G N D 1
9 8
G N D 3 G N D 2
C 1 3 8
D 1 0 1 C 1 3 9 D 1 0 2
C 1 4 0 D 1 0 3
2 2 p
C 1 4 1
0 1 . u D I N
2 2 p
u S D C O N . N
1V81_VDD VMMC
COM G2 G4 G6
uSD_D1
C8 8
uSD_D0
7
C7
6
C6
uSD_CLK
5
C5
4
C4
uSD_CMD 3
C3
uSD_D3
C2 2
uSD_D2
1
C1
uSD_DET
G1
SW G3 G5
5 4 3 2
1
L
K
_ D _ 0 0
_ D _ 0 1
_ D _ 0 2
_ D _ 0 3
_ D _ 0 4
_ D _ 0 5
_ D _ 0 6
J
_ D _ 0 7
_ D _ 0 8
_ D _ 0 9
_ D _ 1 0
_ D _ 1 1
_ D _ 1 2
_ D _ 1 3
_ D _ 1 4
_ D _ 1 5
_ D _ 1 6
_ D _ 1 7
_ D _ 1 8
I
_ D _ 1 9
_ D _ 2 0
_ D _ 2 1
_ D _ 2 2
H
G
M _ R S T
_ C L K
F
E
D
C
B
A
1
LGE Internal Use Only