LG GM750 Service Manual page 188

7. CIRCUIT DIAGRAM
1 6 1 5
L
A u d o i S U B S Y
K
J
V R E G _ M S M P _ 2 6 . V
H P H _ R
H P H _ L
L N I E _ O N
L N I E _ O P
A U I D O _ 2 I C _ S D A
A U I D O _ 2 I C _ S C L
I
R 5 1 9
R C V _ P
R C V _ N
R 5 3 1
c h a n g e d R e v
H
M
G
V R E G _ M S M P _ 2 6 . V
F C 5 0 7
0 1 . u
U
1
A
2
N
3
A
4
A
5
M O I T O N _ N I T N I
E
E
D
K E Y B A C
C
+ V P W R
R e . v 1 0 .
L D 5 0 3
R 5
2 2
S S C T - W H 1 0 - 4 H L
E R H Y 0
L D 5 0 2
R 5
2 2
S S C T - W H 1 0 - 4 H L
E R Y H 0
B
A
L G E n I e t n r l a U s e O n y l
1 6 1 5
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Only for training and service purposes
1 4 1 3 1 2 1 1 1 0
V R E G _ 5 V
S Y E M
V R E G _
C 5 1 0 1 u
C 5 1 1 1 u C 5 2 6
1 0 u
C 5 1 7
A 4
C 1 N
1 u S F B H 0 0 0 8 1 0 2
A 5 A 1 F B 5 0 2
C 1 P H P R H S R
A 2 F B 5 0 4
H P L H S L
C 5 1 6 2 2 0 n D 1
L C D _ B L _ E N
N I A 2 S F B H 0 0 0 8 1 0 2
C 5 1 5 2 2 0 n D 2
N I A 1 B L _ 2 I C _ S C L
C I 5 0 1 B L _ 2 I C _ S D A
C 1 R e . v 1 0 .
C 5 1 4 1 8 n
N I B 2 M A X 9 8 7 7 A E W P _ T G 4 5
C 5 1 3 1 8 n C 2 D 5
N I B 1 O U T + S P K R _ P
B 2 B 5
B A I S O U - T S P K R _ N
C 5 1 2 1 u
B 3
U 5 0 3 B H 1 6 2 F 1 V C
S D A C 5 0 6 C 5 2 7
C 3 1 5
S C L V C C I O U T
D I N D I N
2
G N D 1
2 7 D 4 3 4
R X N I + G C 1 G C 2
B 4
R X N I -
2 7
D e e l e t d R e . v C
1 0 . E U S Y 0 3 8 8 0 2 1
L u m n i a n c e S e n s r o
P o r i x m i
t o o i n S e n s r o
( W i h t h t
V R E G _ P R O X _ I 2 6 . V
V R E G _ M S M P _ 2 6 . V V R E G _ M S M P _ 2 6 . V
R e v 1 . 0 . 0 6 0 3
R 5 2 1 R 5 2 0
4 7 . K 7 . 4 K
C 5 3 1
0 1 . u
G P 2 A P 0 0 2 S 0 0
5 0 4 M M A 7 6 6 0 F C R 5 0 6 R 5 0 7 8
P R O X _ S C L S C L
4 7 . K 4 7 . K
1 0 7
V S S 1 N C 2 P R O X _ S D A S D A
9
C 1 D V D D
8 6
V D D D V S S I V O
7
V S S 2 S D A M O I T O N _ 2 I C _ S D A
6 5
T S C L M O I T O N _ 2 I C _ S C L R e v 1 . 0 . 0 6 0 3 G N D
C 5 3 4
1 u
U S Y 0 3 7 8 3 0 1
K I L G H T L E D
S P E A K E R
R e v 1 . 0 .
M o v e d o t S U B
0 9 0 8 1 2
3 0
0
0 3 0 5 1 0
1 8
K P D _ D R V _ N
0
0 3 0 5 1 0
D 5 0 3
P R S B 6 8 . C
1 4 1 3 1 2 1 1 1 0
9 8 7 6
L C D B A C K I L G H T C H A R G E P U M P
R e v B
M S M P _ 2 6 . V + V P W R
R e v B
C 5 0 9 C 5 0 5
1 u 4 7 . u R 5 0 1
B 6 D 6
V B A T C P V O U T W L E D _ P W R
F 4
V B A T 1 0
F 5
V B A T 2
A 2 C 5 2 0
L E D 1
W L E D 1
B 1 1 u
L E D 2 W L E D 2
D 5 B 2
I V O L E D 3 W L E D 3
B 4 C 2
W L E D 4
R E S E T B L E D 4
C 4 D 1
S C L L E D 5 W L E D 5
M D D _ I P _ D A T A _ P
D 4 D 2
S D A U 5 0 2 L E D 6 W L E D 6
M D D _ I P _ D A T A _ M
B 3 B D 6 0 8 3 G U L M D D _ I P _
L C D _ P W M V G A _ D V D D _ 1 8 . V
W P W M N I
C 1 M D D _ I P _
L E D G N D P M _ C A M _ A F _ 2 8 . V
F 3
S B A I S V G A _ A V D D _ 2 8 . V V G A I _ O V D D _ 2 8 . V
E 1 E 6
S S E N S L D O O 1
F 2 E 5
S G N D D L O 2 O
D 3 E 4
d e e l e t d
G C 2 L D O O 3 F B 5 5 0
E 3
E 2 G C 1 L D O 4 O
S F B H 0 0 0 0 9 0 9
C 5 0 8 C 5 2 8 C 5 2 2
C 5 2 1 R 0 5 2
1 u 1 0 K 1 u 1 u 1 u
R e . v 1 0 .
0 9 0 8 1 2
y t S e n s r o L N I E A R M O T O R D R V I
e C o n r t l o C I )
V R E G _ M O T O R _ 3 0 . V
V R E G _ P R O X _ I 2 6 . V
R e . v C 0 6 0 3
U 5 0 5 S M 1 0 0
F U 5 0 1
1 R 5 2 2 1 8
L E D A L N I _ M O T O R _ E N E N V 1
3 3 .
2 2 7
L E D C R 5 2 3 L N I _ M O T _ P W M S N I V S S
1 0
3 3 6
V C C T Y P E V C C
R e v 1 . 0 . 0 6 0 3
4 4 5
V O U T
P R O X _ O U T O C T V 2
E U S Y 0 3 7 2 6 0 1
E U S Y 0 2 0 0 8 0 3 C 5 2 3
3 9 . n
R e v 1 . 0 . 0 6 0 3
M C I R O P H O N E P O W E R O N & L O C K K E Y
m o v e d o t h t e s u b
M
V M C I _ B A I S
M C I 5 1 0 R T C B t a e t y r
1
P
2
M C I _ 1 N G 1
3
F B 5 0 6 G 2
R 5 9 9
4 V C O N I
M C I _ 1 P O
1 K
S F B H 0 0 8 0 1 0 2
S P U 0 4 1 0 H R 5 H P - B
R e v 1 . 0 . 0 6 0 3
D e e l e t d R e . v C
D 5 9 9
B A T 5 0 1
P R S B 6 8 . C
9 8 7 6
- 189 -
5 4 3 2 1
L G E n I e t n r l a U s e O n y l
" 3 W Q V G A L C D C O N N E C T O R
V R E G _ L C D _ 2 8 . V V R E G _ M S M E _ 1 8 . V
C 5 3 0 C 5 2 9
1 u 1 u
C N 5 0 4
2 4 1
W L E D _ P W R W L E D 1
2 3 2
W L E D 2 W L E D 3
2 2 3
W L E D 4 W L E D 5
2 1 4
W L E D 6
C I M E F 2 1 4 P 1 0 1 M F L 5 0 2 C I V E 1 0 8 1 4 E 0 7 R 0 1 0 0 F R F L 5 0 1
2 0 5
1 5 1 9 6 9 1
L C D _ P W M
P 1 P 5 N I O U _ T B 1 N I O U T _ A 1
2 6 1 8 7 8 2
P 2 P 6 N I O U _ T B 2 N I O U T _ A 2 L C D _ M A K E R _ D I
3 7 1 7 8 7 3
S T B _ P P 3 P 7 N I O U T _ B 3 N I O U T _ A 3 L C D _ R E S E T _ N
4 8
1 6 9 6 4 L C D _ V S Y N C
S T B _ M P 4 P 8 N I O U _ T B 4 N I O U T _ A 4
1 5 0 1
1 4 1 1
S F E Y 0 0 1 5 9 0 1 1 3 2 1 S E F Y 0 0 1 1 7 1 0
L C D _ C S _ N
7 5 . p F
R e v B
G B 0 4 2 2 - 4 - S H 1 0 E - 0 3 0 0
E N B Y 0 0 3 4 2 0 1
N t o i f i t c o i n R G B L E D
E R
+ V P W R
L D 5 0 1 L E M C S - 1 1 G
E D L S 0 0 0 1 1 0 2
D R e v 1 . 0 . 0 6 0 3
Q 5 0 1
V B 5 0 1 G
K T K 5 1 3 2 E
L 5 0 3 L E D R
1
8 2 n
L 5 0 4 S
8 2 n 2
D
Q 5 0 3
G
L E D G K T K 1 5 3 2 E
S
D
Q 5 0 2
G K T K 5 1 3 2 E
L E D B
S
R e v 1 . 0 . 0 6 0 3
C A M &
M u i t a t s k n i g K e y
V O . L S D I E K E Y
V R E G _ M S M P _ 2 6 . V
V l o _ . D n K E Y _ R O W [ ] 0
u i t a t s k n i g K E Y _ R O W ] 0 [ R e . v C 0 6 0 3
4
5 V l o _ . U p K E Y _ R O W [ ] 1
C A M 1 K E Y _ R O W [ ] 1 3
K E Y _ C O [ L ] 1
4
C A M 2 K E Y _ R O W ] 2 [ 2
3
K E Y _ C O [ L ] 0 1
2
C N 5 0 3
1
C N 5 0 2
K E Y _ R O W [ ] 0
K E Y _ R O W [ ] 1
K E Y _ R O W [ ] 2
R e v C .
R e v C .
5 4 3 2 1
L
K
J
I
H
G
F
E
D
C
B
A
LGE Internal Use Only