LG KF750 Service Manual page 192

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
V D D E _ 1 V 8
B B
W 1 4
M C L K M C L K
Y 1 6
S Y S C L K 0 S Y S C L K 0
Y 1 5
S Y S C L K 1 S Y S C L K 1
W 1 6
U S B _ X T A L 1 S Y S C L K 2
P 1 1
P W R R S T _ n P W R R S T _ N
V 1 8
C 3 2 7 R E S O U T 0 _ n R E S O U T 0 _ N
A B 1 6
1 0 0 0 p R E S O U T 1 _ n R E S O U T 1 _ N
A A 1 6
R E S O U T 2 _ n R E S O U T 2 _ N
A A 1 7
S E R V C I E _ N
Y 1 4
Q 3 0 0 C M C L K R E Q M C L K R E Q
V 1 6
O U T
B T _ C L K R E Q _ n S Y S C L K R E Q _ N
R 3 0 6 B R N 1 1 0 7 W 1 5
V P P F L A S H R T C C L K R T C C L K N I
N I
V 1 7
1 0 0 K A C C _ S L E E P A C C S L E E P
E A A 1 5
A P P _ S L E E P A P P S L E E P
G N D
W 1 8
D C O N D C O N
N 2
T C K
M 1
C C T M S
M 2
J T A G C O N N E C T O R T I D
M 3
T D O
P 1
T R S T _ N
N 3
R T C K
A 2 1
T E M U 0 _ N
A 1
T E M U 1 _ N
D 6
E T M C O N N E C T O R E T M _ P S T A T 0
A 5
E T M _ P S T A T 1
C 6
E T M _ P S T A T 2
D 5
E T M _ T S Y N C
B 6
E T M _ T C L K
A 8
E T M _ T P K T 0
D 8
E T M _ T P K T 1
C 8
E T M _ T P K T 2
D 7
E T M _ T P K T 3
B 8
E T M _ T P K T 4
C 7
E T M _ T P K T 5
B 7
E T M _ T P K T 6
D D
A 6
E T M _ T P K T 7
A B 2 0
A C C _ R I Q _ n M S A C C R I Q _ N
A A 2 0
A P P _ R I Q _ n M S A P P R I Q _ N
R 2 0
2 I S 0 _ C L K 2 I S 0 C L K
R 1 9
2 I S 0 _ W S 2 I S 0 W S
V D D E _ 1 V 8 T 2 1
2 I S 0 _ U L D 2 I S 0 U L D
T 1 9
2 I S 0 _ D L D 2 I S 0 D L D
T 2 0
H P C M _ P C M _ C L K 2 I S 1 C L K
U 2 2
H P C M _ P C M _ S Y N C 2 I S 1 W S
U 2 0
T O Z O R A N 2 I ( S ) 1
H P C M _ P C M _ D O U T 2 I S 1 U L D
U 2 1
H P C M _ P C M _ D N I 2 I S 1 D L D
P 1 0
S R S T _ n S R S T _ N
U 5
S C L K S C L K
P 9
S D A T S D A T
J 9
G I P O s A C C _ G P 0 0 _ U S B _ S T P A C C _ G I P O _ 0
K 9
A C C _ G P 0 1 _ U S B _ D R I A C C _ G I P O _ 1
E E
P 2
A C C _ G P 0 2 _ U A R T 0 _ R X A C C _ G I P O _ 2
N 9
A C C _ G P 0 3 _ U A R T 0 _ T X A C C _ G I P O _ 3
M 9
A C C _ G P 0 4 _ U S B _ C L K A C C _ G I P O _ 4
N 4
A C C _ G P 0 5 _ U S B _ N X T A C C _ G I P O _ 5
P 3
A C C _ G P 0 6 _ U S B _ D A T 4 A C C _ G I P O _ 6
P 4
A C C _ G P 0 7 _ U S B _ D A T 5 A C C _ G I P O _ 7
R 4
A C C _ G P 1 0 _ U S B _ D A T 6 A C C _ G I P O _ 8
R 3
A C C _ G P 1 1 _ U S B _ D A T 7 A C C _ G I P O _ 9
R 2
A C C _ G P 1 2 _ T O U C H _ L D O _ E N A C C _ G I P O _ 1 0
R 1
A C C _ G P 1 3 _ S P K _ A M P _ E N A C C _ G I P O _ 1 1
T 2
A C C _ G P 1 4 _ B T _ S P _ I N I T A C C _ G I P O _ 1 2
T 4
A C C _ G P 1 5 _ F L P I S E N S E A C C _ G I P O _ 1 3
Z R E N A B L E P N I # 1
U 1
A C C _ G P 1 6 _ F M _ G I P O 2 A C C _ G I P O _ 1 4
T 3
A C C _ G P 1 7 _ P H F S E N S E A C C _ G I P O _ 1 5
T 5
A C C _ G P 2 0 _ U S B _ C S _ P D A C C _ G I P O _ 1 6
U 4
A C C _ G P 2 1 _ V C I _ O _ O F F A C C _ G I P O _ 1 7
V 3
A C C _ G P 2 2 _ U S B _ D A T 3 A C C _ G I P O _ 1 8
V 1
A C C _ G P 2 3 _ B T _ S P _ I C S 0 n A C C _ G I P O _ 1 9
U 2
A C C _ G P 2 4 _ B T _ S P _ I D A T 0 A C C _ G I P O _ 2 0
U 3
A C C _ G P 2 5 _ B T _ S P _ I D A T 1 A C C _ G I P O _ 2 1
F F
V 2
A C C _ G P 2 6 _ B T _ S P _ I C L K A C C _ G I P O _ 2 2
R 2 1
A C C _ G P 2 7 _ A M P _ S W _ E N A C C _ G I P O _ 2 3
M 1 4
A P P _ G P 0 0 _ U A R T _ R X A P P _ G I P O _ 0
N 1 4
A P P _ G P 0 1 _ U A R T _ T X A P P _ G I P O _ 1
P 1 3
A P P _ G P 0 2 _ M M P _ N I T _ n A P P _ G I P O _ 2
P 1 4
A P P _ G P 0 3 _ M M P _ P W R _ E N A P P _ G I P O _ 3
N 2 2
A P P _ G P 0 4 _ T O U C H _ S C R E E N _ N I T A P P _ G I P O _ 4
N 2 1
A P P _ G P 0 5 _ T O U C H _ S C R E E N _ S C L R 3 1 0 A P P _ G I P O _ 5
M 2 1
M C I R O S D _ D A T 3 A P P _ G I P O _ 6
L 2 2
A P P _ G P 0 7 _ 3 A X S I _ N I T D I N A P P _ G I P O _ 7
N 2 0
A P P _ G P 1 0 _ M M P _ R E S E T _ N A P P _ G I P O _ 8
N 1 9
A P P _ G P 1 1 _ R E M O T E _ N I T A P P _ G I P O _ 9
P 2 1
A P P _ G P 1 2 _ L C D _ D I A P P _ G I P O _ 1 0
P 2 2
A P P _ G P 1 3 _ M C _ C L K R E T A P P _ G I P O _ 1 1
P 1 9
S U B _ P M _ R E S E T B A P P _ G I P O _ 1 2
P 2 0
M O T O R _ E N A P P _ G I P O _ 1 3
P 1 2
A P P _ G P 1 6 _ T O U C H _ S C R E E N _ S D A A P P _ G I P O _ 1 4
G G
A P P _ 2 I C V l o a t g e C a h n g e d 0 2 0 7 1 . 0 0 . 1
V D D E _ 1 V 8 V D D E _ 1 V 8
R 3 1 2 3 3 0 0
R 3 1 3 3 3 0 0
R 3 1 4 3 3 0 0
R 3 1 5 3 3 0 0
H H
1 1 2 2 3 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5 6 6
V D D F _ 2 V 5 V D D E _ 1 V 8 V C O R E
C 3 0 0 1 u C 3 0 1 1 u C 3 0 2
U 3 0 1
D B 3 1 5 0
M C I R O S D c o n n e c e t d i w h t Z O R A N 2 0 0 7 0 . 9 2 . 5
M C I R O S D c o n n e c e t d i w h t D B 3 1 5 0 2 0 0 7 1 . 0 0 . 1
4 4 5 5 6 6
7 7 8 8 9 9
1 u
C 2
S D _ A D D R ( ) 1
E M F I 1 _ A 0 1
C 1
S D _ A D D R ( ) 2
E M F I 1 _ A 0 2
D 2 S D _ A D D R ( ) 3
E M F I 1 _ A 0 3
D 1 S D _ A D D R ( ) 4
E M F I 1 _ A 0 4
E 3 S D _ A D D R ( ) 5
E M F I 1 _ A 0 5
E 2
S D _ A D D R ( ) 6
E M F I 1 _ A 0 6
F 2
S D _ A D D R ( ) 7
E M F I 1 _ A 0 7
G 2
S D _ A D D R ( ) 8
E M F I 1 _ A 0 8
F 1 S D _ A D D R ( ) 9
E M F I 1 _ A 0 9
G 1 S D _ A D D R 1 ( ) 0
E M F I 1 _ A 1 0
H 1 S D _ A D D R 1 ( ) 1
E M F I 1 _ A 1 1
H 2
S D _ A D D R 1 ( ) 2
E M F I 1 _ A 1 2
J 1
S D _ A D D R 1 ( ) 3
E M F I 1 _ S D B S 0 _ A 1 3
J 2
E M F I 1 _ S D B S 0 1 _ A 1 4 S D _ B A 0
K 2
E M F I 1 _ S D B S 1 _ A 1 5 S D _ B A 1
S D _ D A T A 0 ( 1 : ) 5
C 3 S D _ D A T A ( ) 0 S D
E M F I 1 _ D 0 0
D 3 S D _ D A T A ( ) 1 S D
E M F I 1 _ D 0 1
E 5
S D _ D A T A ( ) 2 S D
E M F I 1 _ D 0 2
E 4
S D _ D A T A ( ) 3 S D
E M F I 1 _ D 0 3
F 5
S D _ D A T A ( ) 4 S D
E M F I 1 _ D 0 4
F 4 S D _ D A T A ( ) 5 S D
E M F I 1 _ D 0 5
F 3 S D _ D A T A ( ) 6 S D
E M F I 1 _ D 0 6
G 3 S D _ D A T A ( ) 7 S D
E M F I 1 _ D 0 7
G 4
S D _ D A T A ( ) 8 S D
E M F I 1 _ D 0 8
G 5
S D _ D A T A ( ) 9 R e v _ D S D
E M F I 1 _ D 0 9
H 3
S D _ D A T A 1 ( ) 0 S D
E M F I 1 _ D 1 0
H 4 S D _ D A T A 1 ( ) 1 S D
E M F I 1 _ D 1 1
J 4 S D _ D A T A 1 ( ) 2 S D
E M F I 1 _ D 1 2
J 3 S D _ D A T A 1 ( ) 3 S D
E M F I 1 _ D 1 3
K 4 S D _ D A T A 1 ( ) 4 S D
E M F I 1 _ D 1 4
K 3
S D _ D A T A 1 ( ) 5 S D
E M F I 1 _ D 1 5
B 5
E M F I 1 _ S D C S _ N S D _ C S _ n
D 4
E M F I 1 _ S D C L K S D _ C L K S D _ C S _ n
A 4 T P 3 1 5
E M F I 1 _ S D C K E N S D _ C K E
B 4
E M F I 1 _ S D C A S _ N S D _ C A S _ n S D _ C L K
C 4
E M F I 1 _ S D R A S _ N S D _ R A S _ n S D _ C K E
C 5
E M F I 1 _ W E _ N S D _ W E _ n S D _ W E _ n
B 3
E M F I 1 _ B E 0 _ N S D _ D Q M L _ n S D _ B A 0
A 3
E M F I 1 _ B E 1 _ N S D _ D Q M U _ n S D _ B A 1
S D _ R A S _ n
B 1 3
E M F I 2 _ A 0 1 S D _ C A S _ n
A 1 2
E M F I 2 _ A 0 2 S D _ D Q M L _ n
A 1 3
E M F I 2 _ A 0 3 S D _ D Q M U _ n
A 1 4
E M F I 2 _ A 0 4
B 1 4
E M F I 2 _ A 0 5 E M F I 2 _ D 0 ( 0 0 : ) 7
B 1 5
E M F I 2 _ A 0 6
A 1 5
E M F I 2 _ A 0 7
B 1 6
E M F I 2 _ A 0 8 V D D E _ 1 V 8
C 1 6
E M F I 2 _ A 0 9
A 1 7
E M F I 2 _ A 1 0
B 1 7
E M F I 2 _ A 1 1 E M F I 2 _ A 1 ( ) 1
C 1 8
E M F I 2 _ A 1 2 E M F I 2 _ A 1 ( ) 2
B 1 8
E M F I 2 _ S D B S 0 _ A 1 3 E M F I 2 _ A 1 ( ) 3
A 2 0
E M F I 2 _ S D B S 0 1 _ A 1 4 E M F I 2 _ A 1 ( ) 4
A 1 9
E M F I 2 _ S D B S 1 _ A 1 5
B 1 9
E M F I 2 _ A 1 6 N F _ C E _ n
B 2 0
E M F I 2 _ A 1 7 N F _ C L E
C 2 0
E M F I 2 _ A 1 8 N F _ A L E N F _ A L E
C 1 9
E M F I 2 _ A 1 9 N F _ C L E
C 2 1
E M F I 2 _ A 2 0 N F _ M M P _ R E _ O E _ n
D 2 1
E M F I 2 _ A 2 1 N F _ R E A D Y
C 2 2
E M F I 2 _ A 2 2 N F _ M M P _ W E _ n
D 2 0
E M F I 2 _ A 2 3 R E S O U T 0 _ n
D 2 2
E M F I 2 _ A 2 4
E 2 1
E M F I 2 _ A 2 5
E M F I 2 _ D 0 ( 0 1 : ) 5
F 2 2
E M F I 2 _ C R E _ A 2 6
D 1 2
E M F I 2 _ D ( ) 0
E M F I 2 _ D 0 0
C 1 2
E M F I 2 _ D ( ) 1
E M F I 2 _ D 0 1
D 1 3 E M F I 2 _ D ( ) 2
E M F I 2 _ D 0 2
C 1 3 E M F I 2 _ D ) 3 (
E M F I 2 _ D 0 3
D 1 4 E M F I 2 _ D ( ) 4
E M F I 2 _ D 0 4
C 1 4 E M F I 2 _ D ( ) 5
E M F I 2 _ D 0 5
D 1 5
E M F I 2 _ D ( ) 6
E M F I 2 _ D 0 6
C 1 5
E M F I 2 _ D ( ) 7
E M F I 2 _ D 0 7
D 1 6
E M F I 2 _ D ( ) 8
E M F I 2 _ D 0 8
E 1 6 E M F I 2 _ D ) 9 (
E M F I 2 _ D 0 9
C 1 7 E M F I 2 _ D 1 ( ) 0
E M F I 2 _ D 1 0
D 1 7 E M F I 2 _ D 1 ( ) 1
E M F I 2 _ D 1 1
E 1 7
E M F I 2 _ D 1 ( ) 2
E M F I 2 _ D 1 2
D 1 8
E M F I 2 _ D 1 ( ) 3
E M F I 2 _ D 1 3
E 1 8
E M F I 2 _ D 1 ( ) 4
E M F I 2 _ D 1 4
D 1 9 E M F I 2 _ D 1 ( ) 5
E M F I 2 _ D 1 5
E 6
E M F I 2 _ C S 0 _ N N F _ C E _ n
N A N D C S
E 7
E M F I 2 _ C S 1 _ N M M P _ C S _ n Z O R A N C S
J 1 0
E M F I 2 _ C S 2 _ N S D _ C S 2 _ n 1 G i b s t S D R A M 2 n d C S
A 9
E M F I 2 _ S D C A S _ R E _ O E _ N N F _ M M P _ R E _ O E _ n
D 9
E M F I 2 _ W E _ N N F _ M M P _ W E _ n
C 1 0
E M F I 2 _ S D C L K
B 1 1
E M F I 2 _ C L K
B 1 0
E M F I 2 _ F B C L K
D 1 0
E M F I 2 _ S D C L K E N S D _ C K E 2
C 1 1
E M F I 2 _ S D R A S _ A D V _ N
D 1 1
E M F I 2 _ B E 0 _ N
B 1 2
E M F I 2 _ B E 1 _ N
B 9
E M F I 2 _ N F F I _ R E A D Y N F _ R E A D Y
C 9
E M F I 2 _ W A T I _ N
T P 3 2 5
7 7 8 8 9 9
- 193 -
1 1 0 0 1 1 1 1
S D _ A D D R 1 ( 1 : ) 3
T P 3 0 5
T P 3 0 4
_ D A T A ( ) 0 B 3 C 7 S D _ A D D R ( ) 1
D Q 0 A 0
_ D A T A ( ) 1 C 4 C 8 S D _ A D D R ( ) 2
D Q 1 A 1
C 3 C 9
_ D A T A ( ) 2 S D _ A D D R ( ) 3
D Q 2 A 2
D 4 B 8
_ D A T A ( ) 3 S D _ A D D R ( ) 4
D Q 3 A 3
D 3 M 9
_ D A T A ( ) 4 S D _ A D D R ( ) 5
D Q 4 A 4
_ D A T A ( ) 5 E 4 L 9 S D _ A D D R ( ) 6
D Q 5 A 5
_ D A T A ( ) 6 E 3 K 9 S D _ A D D R ( ) 7
D Q 6 A 6
_ D A T A ( ) 7 F 4 J 9 S D _ A D D R ( ) 8
D Q 7 A 7
J 4 H 7
_ D A T A ( ) 8 S D _ A D D R ( ) 9
D Q 8 A 8
K 3 H 8
_ D A T A ( ) 9 S D _ A D D R 1 ( ) 0
D Q 9 A 9
K 4 D 9
_ D A T A 1 ( ) 0 S D _ A D D R 1 ( ) 1
D Q 1 0 A 1 0
V D D E _ 1 V 8
_ D A T A 1 ( ) 1 L 3 H 9 S D _ A D D R 1 ( ) 2
D Q 1 1 A 1 1
_ D A T A 1 ( ) 2 L 4 G 7 S D _ A D D R 1 ( ) 3
D Q 1 2 A 1 2
_ D A T A 1 ( ) 3 M 3
D Q 1 3
_ D A T A 1 ( ) 4 M 4
D Q 1 4
N 3 B 4
_ D A T A 1 ( ) 5
D Q 1 5 V D D 1
G 9
V D D 2
H 2
V D D 3
E 9 M 2
_ C S 1 V D D 4
E 8
_ C S 2
H 4 D 2
C 3 2 8 C 3 2 9 C 3 3 0 C 3 3 1 C 3 3 2
C L K V D D Q 1
G 8 F 2
C K E 1 V D D Q 2 0 1 . u 0 1 . u 0 1 . u 0 1 . u 0 1 . u
F 8 K 2
U 3 0 0
_ W E D V D D Q 3
D 7
B A 0
D 8 K A L 0 0 9 0 0 B M - D J 5 5
B A 1
E 7 C 2
_ R A S V S S 1
F 7 F 9
_ C A S V S S 2
G 3 G 2
L D Q M V S S 3
H 3 N 4
U D Q M V S S 4
E 2
V S S Q 1
E M F I 2 _ D ( ) 0 J 5 J 2 V D D E _ 1 V 8
O I 0 V S S Q 2
E M F I 2 _ D ( ) 1 L 5 L 2
I O 1 V S S Q 3
J 6
E M F I 2 _ D ( ) 2
I O 2
L 6
E M F I 2 _ D ( ) 3
I O 3
J 7 B 6
E M F I 2 _ D ( ) 4
O I 4 V C C 1
L 7 N 7
E M F I 2 _ D ( ) 5
I O 5 V C C 2
E M F I 2 _ D ( ) 6 J 8
O I 6
E M F I 2 _ D ( ) 7 L 8 N 6
O I 7 V C C Q C 3 3 3 C 3 3 4 C 3 3 5
0 1 . u 0 1 . u 0 1 . u
T P 3 2 4
C 6 B 5
_ C E V S S 5
F 6 N 5
C K E 2 V S S 6
D 5 N 8
A L E V S S 7
C 5
C L E
E 5
_ R E
E 6
R _ _ B
D 6
_ W E
F 5
_ W P
2 G v 1 8 . x 8 N A N D + 1 G v 1 8 . x 1 6 S D R A M ( M C ) P
1 1 0 0 1 1 1 1
LGE Internal Use Only
1 1 2 2
A A
B B
C C
D D
E E
F F
G G
H H
1 1 2 2