LG KF750 Service Manual page 201

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
C N 1 0 1
1
S P K _ R C V +
2
S P K _ R C - V
B B
C N 1 0 7
1
M O T O R _ P W R +
2
M O T O R _ P W R -
C C
S L D I E C O N N E C
C N 1 0 6
1 8 0
2 7 9
3 7 8
4 7 7
5 7 6
D D C _ I R E S _ n
6 7 5
S Y S C L K 0
7 7 4
C _ I P C L K
8 7 3
9 7 2
C _ I H S Y N C
1 0 7 1
C _ I V S Y N C
1 1 7 0
1 2 6 9
A C C _ G P 2 1 _ V C I _ O _ O F F
1 3 6 8
A P P _ 2 I C _ S C L
1 4 6 7
A P P _ 2 I C _ S D A
1 5 6 6
O N S W A _ n
1 6 6 5
1 7 6 4
K E Y O U T 1
1 8 6 3
K E Y O U T 2
1 9 6 2
K E Y N I 4
2 0 6 1
K E Y N I 5
2 1 6 0
2 2 5 9
L C D _ D A T [ A ] 0
2 3 5 8
L C D _ D A T [ A ] 1
2 4 5 7
L C D _ D A T [ A ] 2
2 5 5 6
E E L C D _ D A T [ A ] 3
2 6 5 5
L C D _ D A T [ A ] 4
2 7 5 4
L C D _ D A T [ A ] 5
2 8 5 3
L C D _ D A T [ A ] 6
2 9 5 2
L C D _ D A T [ A ] 7
3 0 5 1
A P P _ G P 1 2 _ L C D _ D I
3 1 5 0
V D D E _ 1 V 8
3 2 4 9
3 3 4 8
T O U C H _ S C R E E N _ S C L
3 4 4 7
T O U C H _ S C R E E N _ S D A
3 5 4 6
T O U C H _ S C R E E N _ N I T
3 6 4 5
3 7 4 4
3 8 4 3
T O U C H _ B U T T O N _ S C L
3 9 4 2
4 0 4 1
T O U C H _ B U T T O N _ S D A
F F
G G
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5
M A N I _
S p e a k e _ r P A D
A m b e i t n
S E N S
S B A I S
N
7
N
4
G A N I 1 G
5
G A N I 2 G
6
B H 1
T O R _ M a e l
V G A C A M E R A
S B A I S
S E N S
G A N I 1
G A N I 2
C _ I D 0
C _ I D 1
C _ I D 2
C _ I D 3
C _ I D 4
C _ I D 5
C _ I D 6
C _ I D 7
A C C _ G P 2 1 _ V C I _ O _ O F F
S P K _ R C V + S Y S C L K 0
S P K _ R C - V
C _ I P C L K
M O T O R _ P W R - C _ I D 0
M O T O R _ P W R + C _ I D 1
C _ I D 2
L C D _ R D _ N C _ I D 3
L C D _ V S Y N C C _ I D 4
L C D _ R E S E T _ N C _ I D 5
L C D _ W E _ N
L C D _ C S _ N
L C D _ A D S _ N
L C D _ P W M
W L E D 5
W L E D 4
W L E D 3
W L E D 2
W L E D 1
W L E D _ P W R
T O U C H _ R S T
4 4 5 5
6 6 7 7 8 8
S d i l e _ F P C B
L g i t h S e n s r o
C 1 0 1
1 u
C 2
C 1 V C C
3
C 1 G N D
2 R 1 0 2
C 2 O I U T
1 1 1 K
6 0 0 F V C U 1 0 1
N I T E R F A C E
V G A _ V D D _ 2 8 . V
V G A _ V D D _ 1 8 . V
C 1 0 2
0 1 . u
A X K 7 2 0 1 4 7 G C 1 0 3
0 1 . u
G C 1 N 1 0 4 G 2
1 2 0
2 1 9
3 1 8
C _ I R E S _ n
4 1 7
A P P _ 2 I C _ S C L
5 1 6
A P P _ 2 I C _ S D A
6 1 5
7 1 4
C _ I H S Y N C
8 1 3
C _ I V S Y N C
9 1 2
C _ I D 7
1 0 1 1
C _ I D 6
G 3 G 4
E N B Y 0 0 1 9 5 0 1
C 1 0 0 6
0 1 . u
6 6 7 7 8 8
- 202 -
9 9 1 1 0 0 1 1 1 1
4 4 P N I _ C O N N E C T O R _ M A L E _ 1 T
C N 1 0 8
1 4 4
T O U C H _ S C R E E N _ S C L T O U C H _ R S T
2 4 3
T O U C H _ S C R E E N _ S D A V R E G _ 6 1 . V
3 4 2
T O U C H _ S C R E E N _ N I T
4 4 1
T O U C H _ 3 1 . V
5 4 0
6 3 9
T O U C H _ B U T T O N _ S D A K E Y O U T 1
7 3 8
T O U C H _ B U T T O N _ S C L K E Y O U T 2
8 3 7
K E Y N I 4
9 3 6
L C D _ D A T [ A ] 0 K E Y N I 5
1 0 3 5
L C D _ D A T [ A ] 1 O N S W A _ n
1 1 3 4
L C D _ D A T [ A ] 2
1 2 3 3
L C D _ D A T [ A ] 3 L C D _ R D _ N
1 3 3 2
L C D _ D A T [ A ] 4 L C D _ V S Y N C
1 4 3 1
L C D _ D A T [ A ] 5 L C D _ R E S E T _ N
1 5 3 0
L C D _ D A T [ A ] 6 L C D _ W E _ N
1 6 2 9
L C D _ D A T [ A ] 7 L C D _ C S _ N
1 7 2 8
A P P _ G P 1 2 _ L C D _ D I L C D _ A D S _ N
1 8 2 7
V D D E _ 1 V 8 W L E D 1
1 9 2 6
W L E D _ P W R W L E D 2
2 0 2 5
W L E D 5
2 1 2 4
W L E D 4 L C D _ P W M
2 2 2 3
W L E D 3
T P 1 0 0
T P 1 0 1
T P 1 0 2
T P 1 0 3
9 9 1 1 0 0 1 1 1 1
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Only for training and service purposes
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A A
B B
C C
D D
E E
F F
G G
H H
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