LG 37LG50D (CHASSIS:LE81D) (serv.man2) Service Manual ▷ View online
- 17 -
BLOCK DIAGRAM
An
a
lo
g
Au
d
io
Si
g
n
a
l
An
a
lo
g
Vi
d
e
o
Si
g
n
a
l
I2
S
Au
d
io
Si
g
n
a
l
Dig
it
a
l
Vi
d
e
o
Si
g
n
a
l
S
T
i710
9
M
P
E
G
D
e
c
ode
r
DDR
256M
B*
4
F
la
s
h
16M
B
S
29G
L
1
28N
90
To
ri
n
o
Di
g
it
a
l
An
a
lo
g
Tu
n
e
r
DD
R
128M
B
*
2(
H
D
) o
r
25
6M
B*
2(
F
H
D
)
Fl
a
s
h
4
M
B
MX
2
9
L
V
AV
S
/
W
C
X
A
2069
Au
d
io
Pr
o
& A
m
p
To M
S
P(
S
IF
)
To MS
P
To MS
P
To
A
V
S/
W
To
M
S
P
I
2
S_
D
T
V
LV
D
S
P
in
R
S
232C
Sp
e
a
k
e
r
MS
P
Fr
o
m
C
o
m
p
1
,2
Fr
o
m
AV
S
/
W
F
ro
m
T
une
r
(S
IF
)
Fr
o
m
R
G
B
I
2
S_
H
D
M
I
RG
B 2
4
b
it
s
RG
B 2
4
b
it
s
I
2
S
MUX
HDM
I
SPD
IF
_
M
SP
I
2
S M
U
X
O
u
t
MN
T
(
R
±
,L
±
)
OP
A
m
p
To
A
V
S/
W
(
M
N
T
R
/
L
)
SP
D
IF
O
u
t
To
ST
i
(TS
D
a
ta
8
)
Fr
o
m
T
u
n
e
r
(T
S
D
a
ta
8
)
To MS
P
Fr
o
m
M
S
P
Fr
o
m
O
P
Am
p
(M
N
T
R
/
L
)
To
A
V
S/
W
(A
V
I
N
)
F
ro
m
AV
IN
Si
d
e
A
/
V
Fr
o
m
MN
T
O
U
T
To
A
V
S/
W
(M
N
T
O
U
T
)
SP
D
IF_
D
T
V
To AV
S/
W
(C
V
B
S
_
O
U
T
)
Fr
o
m
S
T
i
(C
V
B
S
_
O
U
T
)
De
m
o
d
IC
DDR
DI
F
- 18 -
300
510
500
121
120
122
200
801
900
901
802
803
805
806
804
830
550
530
810
520
540
820
400
200T
200N
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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