LG KF750 Service Manual page 197

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
R 8 0 3 R E S O U T 2 _ n
B T _ C L K
0 R T C C L K
C 8 0 0 C 8 0 1
D I N D I N
A C C _ G P 2 5 _ B T _ S P _ I D A T 1
A C C _ G P 2 6 _ B T _ S P _ I C L K
A C C _ P C M _ S Y N C
B B
A C C _ P C M _ C L K
A C C _ P C M _ D L D
A C C _ P C M _ U L D
V D D E _ 1 V 8
A C C _ G P 1 4 _ B T _ S P _ I N I T
B T _ C L K R E Q _ n
C C
V D D K _ 2 V 7 5
D O N O T C H A N G E
V D D E _ 1 V 8 V B A T
D D
A C C _ G P 1 6 _ F M _ G I P O 2
V D D E _ 1 V 8 T P 8 1 4
R E S O U T 1 _ n
A P P _ 2 I C _ S C L
R T C C L K
E E
F F
G G
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5 6 6
T P 8 0 1 A C C _ G P 2 4 _ B T _ S P _ I D A T 0
A C C _ G P 2 3 _ B T _ S P _ I C S 0 n
U 8 0 1 S T L C 2 5 9 3
K 7 J 7
B T _ R E S E T N B T _ C L K _ R E Q _ O U T _ 1
F 6
B T _ R E F _ C L K _ N I
K 9 G 7 F L 8 0 0 D E A 2 1 2 4 5 0 B T 7 - 0 4 3
B T _ L P _ C L K B T _ U A R T _ T X D
5 1
J 6
B T _ U A R T _ R T S B P 1 U _ B P
L 9
B T _ W A K E U P
K 1 4 2
B T _ R F P B P 2 B P _ D C
H 9 J 1
B T _ U A R T _ R X D B T _ R F N
K 6 V D D E _ 1 V 8
B T _ U A R T _ C T S
M 6
B T _ I V O _ A
N 4 J 9
B T _ P C M _ S Y N C B T _ I V O _ B
M 4 N 3
B T _ P C M _ C L K B T _ I V O _ C
K 5 N 5
B T _ P C M _ A B T _ I V O _ D F B 8 0 0
M 5 G 8
6 0
B T _ P C M _ B B T _ I V O _ E
V S S _ B T _ R F V
M 3 H 6
T P 8 0 9 T P 8 1 0 T P 8 1 1 T P 8 1 2 B T _ G I P O _ 9 B T _ V S S I D G 1
K 3 H 7
B T _ G I P O _ 1 1 B T _ V S S I D G 2
K 4 H 8
B T _ G I P O _ 1 0 B T _ V S S I D G 3 C 8 0 4
J 3 K 8
B T _ G I P O _ 1 6 B T _ V S S I D G 4 0 1 . u
L 3 L 8
B T _ G I P O _ 8 B T _ V S S I D G 5
D 1
B T _ V S S A N A 1
G 9 D 2
B T _ G I P O _ 0 B T _ V S S A N A 2
E 7 E 3
B T _ C L K _ R E Q _ N I _ 1 B T _ V S S A N A 3
F 9 F 1
B T _ C L K _ R E Q _ N I _ 2 B T _ V S S A N A 4
E 8 F 2
B T _ H O S T _ W A K E U P B T _ V S S A N A 5
F 3 V D D K _ 2 V 7 5
B T _ V S S A N A 6
L 7 F 4 V S S _ B T _ A N A
B T _ C O N I F G _ 1 B T _ V S S A N A 7
M 7 G 1
B T _ C O N I F G _ 2 B T _ V S S A N A 8
N 6 G 3
B T _ C O N I F G _ 3 B T _ V S S A N A 9
G 4
B T _ V S S A N A 1 0
J 8 H 3
B T _ C L K _ R E Q _ O U T _ 2 B T _ V S S A N A 1 1
H 4
B T _ V S S A N A 1 2
B 2 H 1
B T _ R S V R _ C L 1 B T _ V S S R F 1
C 3 L 1
B T _ R S V R _ C L 2 B T _ V S S R F 2
M 8 J 2
B T _ R S V R _ D B T _ V S S R F 3
C 1 K 2
B T _ R S V R _ D S M B T _ V S S R F 4
C 2 V S S _ B T _ R F
B T _ R S V R _ N
M 2 L 2
B T _ R S V R _ R F B T _ H V A 1
J 4 D 3
B T _ R E G _ C T R L B T _ H V A 2
E 1
C 8 0 8
B T _ H V A 3
N 7 E 2
B T _ H V D B T _ H V A 4 0 1 . u
E 6 E 4
B T _ V D D _ C L D B T _ H V A 5
H 2 V D D E _ 1 V 8
B T _ T E S T 1
G 2
B T _ T E S T 2
D 4 G 6
N C 1 B T _ A F _ P R G
F 7
N C 2 V S S _ B T _ A N A
F 8
N C 3
L 4 C 5
N C 4 F M _ R O U T
L 5 B 5
N C 5 F M _ L O U T
L 6 D 6
N C 6 F M _ I V O
D 8
F M _ S I D O A P P _ 2 I C _ S D A
C 8 1 3
A 4 A 3
F M _ V A F M _ G N D 1 0 1 . u
B 3 B 4
F M _ V D F M _ G N D 2
A 7 B 6
F M _ G I P O 1 F M _ G N D 3
A 6 B 7
F M _ G I P O 2 F M _ G N D 4
A 5 C 4
F M _ G I P O 3 F M _ G N D 5
B 8 C 6
F M _ F M P I F M _ G N D 6
C 9 C 7
F M _ R S T B F M _ G N D 7
D 7 D 5
F M _ R C L K F M _ G N D 8
D 9
F M _ S E N B
E 9 C 8
F M _ S C L K F M _ R F G N D
B u l e o t o h t + ( F M R a i d ) o
4 4 5 5 6 6
7 7 8 8
T O U C H S C R E E N L e v
C 1
O U T 8 0 1
3 9 . n H C 8 0 2
O U T 8 0 2 O U T 8 0 3
L 8 0 0
1 2 . p
3 3 . n H T P 8
L 8 0 1 A P P _ G P 0 4 _ T O U C H _ S C R E E N _ N I T
T P 8
A P P _ G P 0 5 _ T O U C H _ R E S E T
T P
A P P _ G P 0 5 _ T O U C H _ S C R E E N _ S C L
S S _ B T _ R F V S S _ B T _ R F
T P
A P P _ G P 1 6 _ T O U C H _ S C R E E N _ S D A
N I _ T O U C H _ S
N I _ T O U C H _ S
C 8 1 1 1 u
F M _ R P
C 8 1 2 1 u
F M _ L P
F M _ A N T
7 7 8 8
- 198 -
9 9 1 1 0 0 1 1 1 1
N I _ T O U C H _ S C R E E N _ S D A
N I _ T O U C H _ S C R E E N _ S C L
l e S h t f i r e
T O U C H _ R S T
0 4 A 1 C 1
A 1 B 1 T O U C H _ S C R E E N _ N I T
U 8 0 0
0 6 A 2 B 4
A 2 T X S 0 1 0 4 E Z X U R G N D
8 0 7
A 3 B 3
A 3 O E A C C _ G P 1 2 _ T O U C H _ L D O _ E N
8 1 3
0
R 8 0 5
V D D E _ 1 V 8
R 8 1 3 1 0
T O U C H _ S C R E E N _ S C L
R 8 1 1 D I N
C R E E N _ S C L T O U C H _ B U T T O N _ S C L
R 8 1 4 1 0
T O U C H _ S C R E E N _ S D A
R 8 1 2 D I N
C R E E N _ S D A T O U C H _ B U T T O N _ S D A
S I S P O P I T O N
9 9 1 1 0 0 1 1 1 1
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Only for training and service purposes
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D D
E E
F F
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H H
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