LG KF750 Service Manual page 195

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
A C C _ G P 2 0 _ U S B _ C S _ P D
A C C _ G P 0 4 _ U S B _ C L K
U S B _ D A T 0
U S B _ D A T 1
B B
U S B _ D A T 2
A C C _ G P 2 2 _ U S B _ D A T 3
A C C _ G P 0 6 _ U S B _ D A T 4
A C C _ G P 0 7 _ U S B _ D A T 5
A C C _ G P 1 0 _ U S B _ D A T 6
A C C _ G P 1 1 _ U S B _ D A T 7
A C C _ G P 0 5 _ U S B _ N X T
A C C _ G P 0 0 _ U S B _ S T P
A C C _ G P 0 1 _ U S B _ D R I
0 6 0 3
C C
U S
D D
V B A T
E E
0 6 0 3
F S U S B
R 6 1 5
1 0
A P P _ G P 1 1 _ R E M O T E _ N I T S
3 3 . K
9
U S B _ D P V
T P 6 0 0 8
_
7
R E M O T E _ A D C H
6
U S B _ D M H
F F
V D D E _ 1 V 8
C 6 1 5
D I N
R 6 2 0
2 2 0 K
A C C _ G P 1 7 _ P H F S E N S E
G G
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5
V B A T V D D E _ 1 V 8
C 6 0 0 C 6 0 1
0 1 . u 4 7 . u
0 6 0 3
1 0 V
C 3 C 4
C H P I _ S E L T E S T A P P _ G P 0 0 _ U A R T _ R X
A 4 B 5
C L O C K V C C I _ O 1
B 1 B 2
D A T A 0 V C C I _ O 2 A C C _ G P 0 2 _ U A R T 0 _ R X
A 1 C 2
D A T A 1 R R E F
A 2 C 1
D A T A 2 D M U S B _ D M A C C _ G P 0 3 _ U A R T 0 _ T X
A 3 D 1
D A T A 3 U 6 0 1 D P U S B _ D P
A 5 E 2
S I P 1 5 0 8 A E T
D A T A 4 F A U L T A P P _ G P 0 1 _ U A R T _ T X
A 6 D 3
D A T A 5 D I
B 6 B 3
D A T A 6 C F G 2 D C N I
C 6 B 4
D A T A 7 C F G 1
D 5 D 4
N X T P S W _ N V P P F L A S H
D 6 F 4 R 6 0 5 1 K
S T P V B U S V B U S _ U S B _ T R X
E 5 E 3
D R I R E G 3 V 3 O N S W B _ n
E 1 F 5
C F G 0 X T A L 1 U S B _ X T A L 1
E 6 F 6
R E F 1 V 8 X T A L 2
0 6 0 3 0 6 0 3
E M
B T a r n c s e v i e f r r o H g i h S p e e d
R 8 8 8
D I N
U 8 0 3 R 1 1 1 4 D 1 8 1 D
R 8 1 8
1 3
C C O 2 V D D V O U T
2 2 . K
4 2
N C G N D 1
6 5
C E G N D 2 C 8 1 8
C 8 1 9 1 u
2 2 . u
R 6 0 7
H O O K
4 7 K
C 6 0 8
1 0 n
0 6 0 3
C 6 0 9 0 1 . u
M C I 2 P
0 6 0 3
C 6 1 0 0 1 . u F B 6 0 3
M C I 2 N
0 6 0 3
T V _ O U T
R 6 1 0 4 7 0 1 %
M D I R
R 6 1 2 4 7 0 1 %
F L 6 0 1 N U F 2 1 1 4 M N F B 6 0 0
C 6 1 3 1 0 0 u
1 8 R 8
E A R _ L N I 1 O U T 1
2 7
N C 1 N C 4
3 6
N C 2 N C 3 F B 6 0 1
C 6 1 4 1 0 0 u R 8
3 0 U M X U 6 0 2 4 5
E A R _ R N I 2 O U T 2
1
E L H S D 1 +
2
C C H S D 2 +
3
O E D +
4
S D - 1 G N D
U S B _ D P R / M T _ N I T
5 U S B _ D M R / M T _ A D C
S D - 2 D -
V B A T
C T S _ O N
C 6 1 6
0 1 . u
R 6 1 8 1 K
V P P F L A S H _ E 0
D 6 0 0 U S F B 1 3 L
V B U S
A P P _ A C C _ U A R T _ T X R 6 1 9
A P P _ A C C _ U A R T _ R X
C 6 1 8
V B U S _ U S B _ T R X
D I N
C 6 1 9
2 2 . u
N C P 3 4 8 M T R 2 G U 6 0
1 0
_ E N N I 1
9
G A T E _ O U T N I 2
8
G A T E N I 3
F B 6 0 2
R 6 2 5
7
D C N I _ A O U T 2 _ F L A G
0
6
O U T 1 G N D
C 6 2 3 C 6 2 4 N C 1
1 u 0 0 . 1 u
N C 2
4 4 5 5
6 6 7 7 8 8
V D D E _ 1 V 8
K N A T T E - 2 C 2 U 6 0 0
D 2 A 1 R 6 0 0 D I N
0 6 0 3
D T M S I _ D T M S _ E
C 3 A 3 R 6 0 1 0
0 6 0 3
C T M S I _ C T M S _ E A P P _ A C C _ U A R T _ R X
A C C s h o u d l b e m o u n e t d
D 4 A 4 R 6 0 0 2 6 0 3 0
C F M S I _ C F M S _ E A P P _ A C C _ U A R T _ T X
D 3 A 2 R 6 0 4 D I N
0 6 0 3
D F M S I _ D F M S _ E
C 5 B 5
D I C O I _ D I C O _ E D C N I _ A
D 5 A 5
V P P F L S I _ V P P F L S _ E V P P F L A S H _ E
D 1 B 1
C T S _ O N I _ C T S _ O N _ E C T S _ O N
I E / S D F l i e t f r r o U A R T a n d D C N I
F B 6 0 4
n e r a o t c o n n e t c r o
F B 6 0 5 L 6 0 0 2 7 0 n H
C 6 1 1 2 2 p
F M _ A N T
V A 6 0 0
U L C E 0 5 0 5 C 0 1 5 F R
1 6 4 7
C N 6 0 0
1 7 4 7
1 9
1
F M _ A N T
2
R 6 1 6 H S _ M C I
3
0 6 0 3
T V _ O U T 2 ( 0 0 7 0 . 9 1 . ) 8
4
0 E A R _ L
5
E A R _ R
6
U S B _ D P R / M T _ N I T
7
U S B _ D M R / M T _ A D C
8
E A R _ D E T E C T _ n
9
V B A T _ + 4 2 . V
1 0
V B A T _ + 4 2 . V
1 1
O N S W B _ n
1 2
V C H G _ + 5 V
1 3
V C H G _ + 5 V
1 4
V P P F L A S H
1 5
U S B _ P O W E R
1 6
U A R T _ T X
1 7
U A R T _ R X
1 8
G N D
2 0
H S E J 1 - 8 S 0 4 2 - 5 P C
3
1
4
5
3 T P 6 0 1
2
1 1
1 2
6 6 7 7 8 8
- 196 -
9 9 1 1 0 0 1 1 1 1
B A T 6 0 0
V B A C K U P
C 6 1 7
1 u
B A C K _ U P B A T T E R Y
9 9 1 1 0 0 1 1 1 1
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Only for training and service purposes
1 1 2 2
A A
E E
F F
G G
H H
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