LG KF750 Service Manual page 193

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
B B
C C
T P 4 0 0
B 8
M M P _ C S _ n H C S 0 N
A 8
H C S 1 N
T P 4 0 2 B 7
N F _ M M P _ R E _ O E _ n H R D N
T P 4 0 3 B 9
N F _ M M P _ W E _ n H W R N
A 7
A P P _ G P 0 2 _ M M P _ N I T _ n H G N I T N
T P 4 0 4 A 1 0
E M F I 2 _ A 1 ( ) 1 H A 1 1
A 9
E M F I 2 _ A 1 ( ) 2 H A 1 2
T P 4 0 6 C 8
E M F I 2 _ A 1 ( ) 3 H A 1 3
T P 4 0 7 C 7
D D E M F I 2 _ A 1 ( ) 4 H A 1 4
E M F I 2 _ D ( ) 0 T P 4 0 8 D 1 2
H D 0
E M F I 2 _ D ( ) 1 C 1 0
H D 1
E M F I 2 _ D ( ) 2 C 1 2
H D 2
C 1 3
E M F I 2 _ D ( ) 3
H D 3
C 1 4
E M F I 2 _ D ( ) 4
H D 4
B 1 4
E M F I 2 _ D ( ) 5
H D 5
E M F I 2 _ D ( ) 6 C 1 1
H D 6
E M F I 2 _ D ( ) 7 B 1 3
H D 7
E M F I 2 _ D ( ) 8 A 1 4
H D 8
A 1 3
E M F I 2 _ D ( ) 9
H D 9
B 1 2
E M F I 2 _ D 1 ( ) 0
H D 1 0
A 1 2
E M F I 2 _ D 1 ( ) 1
H D 1 1
E M F I 2 _ D 1 ( ) 2 B 1 1
H D 1 2
E M F I 2 _ D 1 ( ) 3 A 1 1
H D 1 3
E M F I 2 _ D 1 ( ) 4 C 9
H D 1 4
E M F I 2 _ D 1 ( ) 5 B 1 0
E M F I 2 _ D 0 ( 0 1 : ) 5
H D 1 5
L 1 3
N C S N
M 1 3
E E N A L E
L 1 2
N C L E
L 1 1
N R E N
K 1 3
C _ I H S Y N C N W E N
M 1 4
C _ I H S Y N C _ W T I H O U T _ F F N R B N
L 1 4
N D 0
L 1 0
N D 1
J 1 2
N D 2
H 1 2
N D 3
K 1 4
N D 4
G 1 2
N D 5
J 1 3
N D 6
H 1 3
N D 7
K 1 1
N D 1 5
N 2
S P C I L K
K 3
S P C I S
L 2
S P D I O
J 3
S I P I D
F F
T P 4 1 0
M 4
U A R T T X
N 3
E L _ D C D C _ E N U A R T R X
M 1
U A R T R T S
L 1
U A R T C T S
S U B P M 2 I C D S I C O N N E C T E D W T I H Z R 2 0 7 0 1 . 0 . 0 1
N 1 4
M M P _ 2 I C _ S C L S C L
P 1 4
M M P _ 2 I C _ S D A S D A
P 2
C _ I V S Y N C _ W T I H O U T _ F F G I P O 0
M 3
A P P _ G P 0 5 _ T O U C H _ R E S E T G I P O 1
P 7
C _ I V S Y N C G I P O 2
N 1
G I P O 3
P 1
M M P _ C A M _ R E S E T _ N G I P O 4
M 5
M M P _ C A M _ P W R _ E N G I P O 5
N 6
M M P _ C A M _ P W D N G I P O 6
M 6
F L A S H _ L E D _ E N G I P O 7
P 5
F L A S H _ L E D _ T O R C H G I P O 8
N 5
F L A S H _ L E D _ N I H G I P O 9
C 4 2 9 2 2 p G 1 4
G G T V D A T A
F 1 3
T V R E F
L 4 0 3
T V _ O U T
2 2 . u H
C 4 3 0 C 4 3 1
3 3 0 p 3 3 0 p
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5 6 6
F o r m V B U C K
o r F m V B U C K
F 1
S D A T 0
F 2
S D A T 1
E 5
S D A T 2
F 3
S D A T 3
H 2
S C M D
G 1
S C L K
G 3
S W P
P 1 2
M M P _ C A M
V M C L K
P 1 0 M M P _ C A M
V P C L K
M 1 2
V H R E F M M P _ C A M
K 1 2
M M P _ C A M
V V S
P 8
V D I A
N 8
V D I B
P 9
V D I C
M 1 0
V D I D
N 1 0
V D I E M M P _ C A M _
N 9
V D I F M M P _ C A M _
N 1 1
V D I G M M P _ C A M _
P 1 1
V D I H M M P _ C A M _
N 1 2
I V I D M M P _ C A M _
N 7
V D I J M M P _ C A M _
L 8
V D I K M M P _ C A M _
P 1 3
V D I L M M P _ C A M _
L 9
V D I M M M P _ C A M _
N 1 3
V D I N M M P _ C A M _
M 1 1
V D I O M M P _ C A M _
M 9
V D I P M M P _ C A M _
B 5
L D 0 C _ I D 0
A 5
L D 1 C _ I D 1
B 6
L D 2 C _ I D 2
B 4
L D 3 C _ I D 3 L C [ D
A 4
U 4 0 4
L D 4 C _ I D 4
C 3
L D 5 C _ I D 5
A 3
Z R 3 4 5 3 L D 6 C _ I D 6
A 2
L D 7 C _ I D 7
A 1
L D 8
B 2
L D 9
B 1
L D 1 0
B 3
L D 1 1
C 1
L D 1 2
C 2 L C D C O N N E C T E D O N D B 3 1 5 0 2 0 0 7 1 . 0 0 . 1
L D 1 3
C 5
L D 1 4
C 6
L D 1 5 R 8 1 5 0
D 3
L D 1 6 C _ I P C L K
D 1
L D 1 7
C 8 2 0
A 6
L C S 0 N D I N
D 2
L C S 1 N
D 5
L R D N
C 4
L W R N
D 4
L A 0
E 1
L C K
E 4
L H S C _ I H S Y N C _
E 3
L V S C _ I V S Y N C _
E 2
L A C T
H 3
H P C M C L K H P C M _ P C M
H 1
H P C M F S H P C M _ P C M
R 4 2 5 0
J 2 T P 4 1 1
H P C M D O H P C M _ P C M
J 1 T P 4 1 2
H P C M I D H P C M _ P C M
R 4 3 0 0
N 4 T P 4 1 3
A M C L K
M 2
A B C L K 2 I S 1 _ C L K
K 2
A F S 2 I S 1 _ W S
K 1
A D O 2 I S 1 _ U L D
L 3
A I D 2 I S 1 _ D L D
P 3
U D P
P 4
U D N
J 4
U V B U S
P 6
U D I
M 7
U R S E T
4 4 5 5 6 6
7 7 8 8
V D D G _ 2 V 7 5 C A M _ V D D _ 1 8 . V
M M P _ V D D _ C O R E _ 1 0 . V
C 4 0 1 C 4 0 2 C 4 0 3 C 4 0 4 C 4 0 5 C 4 0 6 C 4 0 0
0 1 . u 0 1 . u 0 1 . u 0 1 . u 0 1 . u 1 0 p 1 0 u
M M P _ V D D _ 1 9 . V
V D D E _ 1 V 8
C 4 1 0 C 4 1 1 C 4 1 2 C 4 1 3 C 4 1 4 C 4 1 5 C 4 1 6 C 4 0 9
0 1 . u 1 0 p D I N 0 1 . u 0 1 . u 0 1 . u 1 0 p 1 0 u
C 4 1 3 R E M O V E D 2 0 0 7 1 . 0 0 . 1
_ M C L K
_ P C L K
_ H S Y N C
_ V S Y N C
D A T [ A ] 0
D A T [ A ] 1
D A T [ A ] 2
D A T [ A ] 3
D A T [ A ] 4
D A T [ A ] 5
D A T [ A ] 6
D A T [ A ] 7
D A T [ A ] 8
D A T [ A ] 9
D A T A 1 [ ] 0
D A T A 1 [ ] 1
: 0 ] 7 = V G A [ D : 0 ] 7 2 0 7 0 1 . 0 . 0 1
M M P _ V D D _ 1 9 . V
A P P _ G P 0 3 _ M M P
W T I H O U T _ F F
W T I H O U T _ F F
_ C L K
_ S Y N C
_ D N I
_ D O U T
Z O R A N U S B D O E S T N T í U S E 2 0 0 7 1 . 0 0 . 1
7 7 8 8
- 194 -
9 9 1 1 0 0 1 1 1 1
2 7 M h z X T A L
M M P _ X T A L _ N I
M M P _ X T A L _ O U T
F A 2 - 3 8 _ 2 7 M H z _ 9 P F
X 4 0 0
4 3
1 2
2 7 M H z
C 4 0 7 C 4 0 8
8 p 8 p
V B A T D C D C F O R E L V R E G _ 6 1 . V
M C I 9 4 0 7 1 Y M T Q 4 0 0
4 1
E N V O U T L 4 0 0
1 0 u H
3 2
V N I G N D
U 4 0 0
1 8
O U T P G N D
2 7
V N I S W
3 6
E L _ D C D C _ E N E N F B C 4 2
5
N C 4 7 . u
4 9
C 4 2 2 A N G D T _ G N D
2 2 . u
M C I 2 2 9 0 Y M L
D C D / C M O V E D O N M A N I P C B 2 0 0 7 1 . 0 0 . 1
D C D / C F O R Z O R A N
V B A T M M P _ V D D _ C O R E _ 1 0 . V
C 4 2 3 C 4 2 4
1 0 u 1 u
U 4 0 3 M C I 2 2 3 8 _ A A Y M L
1 1 2
F B 2 F B 1
2 1 1
_ P W R _ E N E N 2 E N 1
R 4 1 6
3 1 0
A V N I P G O O D
1 0 0 K
4 9
S W 2 V N I
L 4 0 1 4 7 . u H
5 8
A G N D S W 1
6 L 4 0 2 4 7 . u H
C 4 2 6 P G N D
1 3 7
2 2 p T _ G N D _ F P W M 2 2 p
C 4 2 7
C 4 2 5
2 2 . u
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
B B
C C
1 D D
E E
F F
G G
H H
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