LG GM750 Service Manual page 187

7. CIRCUIT DIAGRAM
1 6 1 5
L
- u U S B C o n n
K C 4 4 0 L 4 0 5
2 2 p 2 7 0 n
C N 4 0 1
6
8
1 0
1 2
2 m m
1 4
1
2
M A X _ D M
3
M A X _ D P
4
U S B _ D I
5
7
J
D 4 0 1
9 C 4 3 9
P R S B 6 8 . C
1 1 3 9 0 p
1 3
1 5
G U 7 0 3 5 - P S - D E - 1 5 0 0
E N R Y 0 0 0 8 8 0 1
( R e v e s r e T y p ) e
( R e v e s r e T y p , e C T 8 1 , 0 E N R Y 0 0 0 8 5 0 ) 1
R e . v 1 0 . 0 9 0 8 1 2
I
H
P M 7 5 4 0
G
R 4 0 1
V C H G _ V B U S
1 0
R 4 2
1 0
F
M
V B A T _ T E M P
N
R e m o v e d h t e P R O X _ A D C
R 4 2 8 D
R E M O T E _ P W R _ O N
B 1
1 K
D
M S M _ U I S M _ R S T
A
I S M _ R S T
C 4 4 2 1 0 0 n L 1
M 1
G S M _ P A _ D A C _ R E F
E
K
M S M _ U I S M _ C L K
K
I S M _ C L K
K
M S M _ U I S M _ D A T A
K
I S M I _ O
M
N
N
U S B _ S U S P E N D
M
B
D
F
U S B H _ C S
G
N O T E : 1 8 . V M P P 1 9 r o f U S B H S
J
D K
H
L
M
H
J
K
J 1
V R E G _ M S M P _ 2 6 . V
H 1
K 1
P M C I _ S S I B
D 1
P M _ N I T _ N
C
B
B
A
A
B
B
A
A
B
B
N
B E
K P D _ D R V _ N
F
H
A
L G E n I e t n r l a U s e O n y l
1 6 1 5
LGE Internal Use Only
1 4 1 3 1 2 1 1 1 0
M A X 1 4
e t c r o
V C H G _ V B U S
F M _ A N T
C 4 4 5
C I 4 0 1
1 0 0 n
D 5
V B
C 5
M A X _ D M C O M N 1
B 5
M A X _ D P C O M P 2
T A O V P i C c r u t i
V C H G _ V B U S B 4
U S B _ D I M A X 1 4 5 2 6 E E W
U D I
2 m m
R 4 1 2 B 1
R E S
N U S 3 0 6 5 M U T A G U 4 0 4 2 m m 2 2 . K
D 1
9
D R A N I _ T H E R M A L C A P
8 1 F L 4 0 1 N F M 1 8 P C 1 0 4 R C 1 3 C 4
G N D
V C C N I
N I O U T C 3
C I
C 4 4 6
7 2 G N D 1 G N D 2
O U T G N D
1 u
S F E Y 0 0 5 1 3 0 1
6 3
G A T E C N T R L
5 4 P S D 1 L - 2 F
S R C D R A N I
Z D 4 1 0
C 4 4 1
3 9 . n
R e v B
V R E G _ M S M E _ 1 8 . V
V B A T
+ V P W R
P a l c e c o l s e o t P M 7 5 4 0 p n i s
C 4 3 0 1 0 0 n
C 4 3 1 1 0 0 n
C 4 0 6
3 3 p F
C 4 2 9 1 0 0 n
C 4 3 6 1 0 0 n
C 3 4 7 1 0 0 n
D e e l e t d R e v B
C 4 3 3 1 0 0 n
C 3 4 4 1 0 0 n
C 4 3 5 1 0 0 n
C 4 6 9 7 . 4 u A u d o i s u b s - y s e t m L o c l a G o r u n
V R E G _ 5 V
+ V P W R
7 C 4 6 3 C 4 7 2 1 n
P a l c e n i P M 7 5 4 0 o r o m t a s h
K 1 u
C 4 7 0 7 . 4 u
R 4 0 3 h t e s e C A P s c o l s e o t n i d
D I N
R e v 1 . 0 .
W 2 1 0 0 B E R
R 4 2 6
0
L 4 0 6
2 2 . u
C 4 6 7 n 1
7
M P P _ 1 R B 5 2 1 S 3 - 0
5 K 1
D 4 0 5
M P P 2 _ V S W 5 _ V
8 J 1 C 4 6 8 1 u 0
M P P 3 _ V R E G _ 5 V
2 N 8 L 4 0 1 4 7 . u
M P P _ 4 V S W _ M S M C 1
4 M 8 E L C P 0 0 0 0 8 0 5
M P P 5 _ V R E G _ M S M C 1 V S N S _ M S M C 1 _ 1 2 . V
1 N 6
L 4 0 4 4 7 . u
M P P _ 6 V S W _ M S M C 2
2 M 6 E L C P 0 0 0 0 8 0 5
V S N S _ M S M C 2 _ 1 2 . V
M P P 7 _ V R E G _ M S M C 2
1 N 1 0 L 4 0 2 4 7 . u
M P P _ 8 V S W _ M S M E
8 M 9 E L C P 0 0 0 8 0 0 5
M P P _ 9 V R E G _ M S M E V S N S _ M S M E _ 1 8 . V
9 N 4
L 4 0 3 4 7 . u
M P P _ 1 0 V S W _ P A
5 M 4 E L C P 0 0 0 8 0 0 5
M P P 1 _ 1 V R E G _ P A
6
M P P _ 1 2 R e v B .
3 A 2
M P P _ 1 3 V R E G G _ 1 P
1 J 1 3
M P P 1 _ 4 V R E G G _ P 2
3 N 1 2
M P P _ 1 5 V R E G _ G 3 P
5 A 9
M P P _ 1 6 V R E G _ G 4 P
3 B 1 3
M P P _ 1 7 V R E F G _ P 5
5 E 1 3
M P P _ 1 8 V R E G G _ 6 P
4 K 1 3
M P P _ 1 9 V R E G _ M M C
4 A 1 1
M P P 2 _ 0 V R E G _ M S M A
2 G 1 3 C 4 6 5 2 2 . u
M P P 2 _ 1 U 4 0 3 V R E G _ M S M E 2
2 H 1 3
M P P 2 _ 2 V R E G _ M S M P
P M 7 5 4 0 A 8
V R E G _ R F R X 1
2 A 1 0
U S B _ D I V R E G _ R F R X 2
2 A 3
U S B _ D _ P V R E G _ R F T X
2 N 1 1
U S B _ D _ M V R E G _ R I U M 1
4 E 1 2
U S B _ O E _ N V R E G S _ Y N T
4 D 1 3
U S B _ D A T V R E G _ T C X O
4 M 1
C 4 6 4 2 2 . u
U S B _ S E 0 V R E G _ U S B
G 1
V R E G _ W L A N
0 G 1 2
S B S T M C I _ B A I S
0
S B C K
0 A 1 2
R 4 2 4 1 2 1 k
S B D T _ S S I B R E F _ S I E T
0 A 1 3
M S M _ N I T _ N R E G _ G N D
C 1 3 C 4 6 0 1 0 0 n
R E F B _ Y P
6
S P K R _ N I _ _ L M
7 H 1 2
S P K R _ N I _ L _ P T C X O _ N I T C X O _ P M _ 1 9 2 . M H z
6 D 9 T P 4 0 1
T C X O _ E N
S P K R _ O U T _ L _ M T C X O _ E N
7 G 1 0
S P K R _ O U T _ L _ P T C X O _ O U T P M C I _ T C X O
R 4 2 3 5 1
4 X 4 0
S P K R _ N I _ R P _
5 M 1 3
S P K R _ N I _ R _ M X T A L _ N I
4 N 1 3 P a l c e c y r t s l a a n d o l a d c a p s c o l s e o t P M 7 5 4 0
S P K R _ O U T _ R _ P X T A L _ O U T
5
S P K R _ O U T _ R _ M E X X Y
C M 3 1 5
K 7
S L E E P _ C L K S L E E P _ C L K
2 M 1 2
C 4 1 3 C 4 1 2
V D I E O _ N I A M U X _ O U T A M U X _ O U T
1 2 2 p 2 2 p
V D I E O _ O U T
2 C 1 2
V B I _ D R V _ N K P D _ P W R _ N K P D _ P W R _ N
1 F 1 0
K P D _ D R V _ N P O N _ R E S E T N _ n P O N _ R S T K D S 1 1 4 E
1 E 1 0
L C D _ D R V _ N P S _ H O L D P S _ H O L D
1
F L S H _ D R V _ N D 4 0 4
J T A G _ P S _ H O L D
R 4 2 2 2 0 0 k
C 4 6 6
D I N
D 4 0 3 P R S B 6 8 . C
1 4 1 3 1 2 1 1 1 0
9 8 7 6
5 2 6
V B A T
H g i h S p e e d U S B T a r
C 4 4 4
1 0 0 n
D 2
B A T
A 4
D N 1 U S B H _ D M
A 5
D P 2 U S B H _ D P
B 3
P + T C C 6 U A R T 3 _ R X
U 1
A 3
U 2 U A R T 3 _ T X
F B 4 0 1 U S B H _ C S
A 1
M C I H S _ M C I
D 4
S F B H 0 0 0 8 1 0 2
A U D 1 H S L
D 3
A U D 2 H S R
A 2
S I E T
V R E G _ M S M P _ 2 6 . V
M A X 1 4 5 2 6 _ 2 I C _ S C L
M A X 1 4 5 2 6 _ 2 I C _ S D A
M A X 1 4 5 2 6 _ N I T
R e . v C
U 4 9 9 B D 4 9 3 1 F V E
1 5
V O U T V D D
2
S U B
3 4
N C G N D
E U S Y 0 3 9 9 3 0 1
V R E G _ M S M P _ 2 6 . V
d P a l n
e i d l e d g e
R 4 0 4
1 5 0
u c o t s r
C 4 0
1 0 n
F U E L _ 2 I C _ S D A R 4 0 8 1 5 0 R 4 0 9 1 5 0
0 6 . m m
V R E G _ M S M C 1 _ 1 2 . V F U E L _ 2 I C _ S C L R 4 1 0 1 5 0 R 4 1 1 1 5 0
0 6 . m m
V R E G _ M S M C 2 _ 1 2 . V
0 6 . m m
V R E G _ M S M E _ 1 8 . V
0 5 . m m
V R F _ S M P S
V R E G _ P R O X _ I 2 6 . V
V R E G _ L C D _ 2 8 . V
V R E G _ M O T O R _ 3 0 . V
V R E G _ A U X 2 _ 2 8 . 5 V
C A M _ E N _ 2 8 . V
V R E G _ M M C _ 3 0 . V
V R E G _ M S M A _ 2 6 . V
V R E G _ M S M P _ 2 6 . V
V R E G _ R F R X _ 1
V R E G _ R I U M _ 3 0 . V
V R E G _ T C X O _ 2 8 . 5 V
S I
V R E G _ U S B _ 1 8 . V
S I
1 m m ( o t h t e W P - A M )
+ V P W R
2 m m ( o t h t e B a t t C . o n ) n V B A T
2 m m ( o t h t e S K Y 7 7 5 2 ) 1
1
0 0 2 4 3 0 1
_ 1 2 _ 5 P F
9 8 7 6
- 188 -
5 4 3 2 1
L G E n I e t n r l a U s e O n y l
n c e v i r e + V P W R V R E G _ U S B _ 1 8 . V
C 4 5 4 1 0 0 n
C 4 0 1 4 7 . u
1 0 V
C 3 C 4
C H P I _ S E L T E S T
A 4 B 5
U S B H _ C L K C L O C K V C C I _ O 1
B 1 B 2
U S B H _ D A T A ] 0 [ D A T A 0 V C C I _ O 2
A 1 C 2
U S B H _ D A T A [ ] 1 D A T A 1 R R E F Z = 9 0 o h m
A 2 C 1
U S B H _ D A T A [ ] 2 D A T A 2 D M U S B H _ D M
A 3 U 4 0 2 D 1 R o u e t T o g e h t r e
U S B H _ D A T A ] 3 [ D A T A 3 D P U S B H _ D P
A 5 E 2
S I P 1 5 0 8 A E T
U S B H _ D A T A [ ] 4 D A T A 4 F A U L T
A 6 D 3
U S B H _ D A T A ] 5 [ D A T A 5 D I
B 6 B 3
U S B H _ D A T A ] 6 [ D A T A 6 C F G 2
C 6 B 4
U S B H _ D A T A ] 7 [ D A T A 7 C F G 1
D 5 D 4
U S B H _ N E X T N X T P S W _ N
D 6 F 4 R 4 1 8
U S B H _ S T O P S T P V B U S V C H G _ V B U S
E 5 E 3
U S B H _ D R I D R I R E G 3 V 3 1 K
E 1 F 5
C F G 0 X T A L 1 U S B H _ R E F _ C L K
E 6 F 6
R E F 1 V 8 X T A L 2
F u l e G a u g e C I & B t a e t y r C o n . n
V B A T
V B A T
2 m m
V R E G _ M S M P _ 2 6 . V
R 4 0 7 R 4 0 5
1 M 1 5 0
M A X 1 7 0 4 0 G U 4 0 1
3 2
C N 4 0 2
V D D C E L L V B A T _ S E N S E
R 4 0 6
3
3 V B A T _ T E M P
5 2 4
S E O 1 0 K
6
1
E O
8 1
S D A C T G
7 4
S C L G N D C 4 2 0 C 4 0 2
1 u 1 u
C 4 5 0
2 2 u
E U S Y 0 2 4 2 3 0 3
B t a e t y r C h a g r n i g i C c r u t i
N S _ P
V C H G _ V B U S
Q 4 0 1 N U S 5 5 3 0 M N
+ V P W R
2 m m
N S _ M 1 % 1 0
D R A N I _ B
1 9
N C 1 C O L L E C T O R _ B
2 8
C O L L E C T O R E M T I T E R
3 7
S O U R C E B A S E C H G _ C T L _ N
4 6
D R A N I N C 2
5
G A T E B A T T _ F E T _ N
C 4 5 9 C 4 6 2
2 2 u 1 0 n
P O W E R
5 4 3 2 1
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
L
K
J
I
H
G
F
E
D
C
B
A