Read LG 42LM3450 (CHASSIS:LC21C) Service Manual online
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1
/ 153
Block Diagr
am
E
th
e
rn
e
t
R
G
B
PC
SPDI
F
C
o
mpo
n
e
n
t/A
V
V
HDMI
1/2(
DV
I)
I)
T
uner
T
uner
PC
/DV
/DV
I Au
di
di
I
n
TU_
C
V
BS
SI
F
L/R
L
G2111
A
IC
101
S
ERIAL
FL
AS
H
AS
H
IC
1
4
0
1
(
8
M
b
b
it)
MX2
5
L
8
0
0
5
M
2
I
LV
DS
DS
(FHD/
50H
z)
USB
D
P/D
M
M
SPK
L
/R
X
-t
a
l
2
4
M
FP
C(
51
P
P
)
I2
S
SPD
IF
C
V
BS,
Y
Y
/Pb
/P
r,
L/R
RG
B/H
/V
B/H
/V
Rear
TM
D
D
S
D
D
R3
A
A
dd.
D
D
R3
D
D
at
a
SPI
Side
N
AN
D
D
FL
AS
H
AS
H
IC
1
0
2
(
2
G
b
it)
PC
M
_
A
[0
:7
]
TM
D
D
S
HDMI
3
DDR3
1G
b
b
IC12
02
H5T
Q
1G
6
6
3B
FR
FR
DDR3
1G
b
b
IC12
01
H5T
Q
1G
6
6
3B
FR
FR
C
O
N
T
R
O
L
IR
&
&
L
ED
/
/
S
O
FT
T
T
O
U
C
H
(T
AC
T
T
S
WIT
C
H)
S
E
N
S
OR
_
S
CL
/S
DA
/S
DA
L
E
D_
R
R
KE
Y
Y
1
KE
Y
Y
2
IR
M
24
M
M
0
1-
HR
M
M
N
6
TP
IC10
4
25
6Kbit
6Kbit
I2
C
E
xcep
t
o
f
L
M
4600/L
M
3
100/
L
M
3400/L
S
4
10
0/
0/
L
S
350
0/CS
460
CI Slot
74L
CX2
CX2
44
B
uf
fe
r
TS_
D
D
A
T
A
[0:
7]
7]
PC
M
_D
A
T
A
[0:
7]
7]
FE
_TS_
D
D
A
TA
[0
[0
:7
]
PC
M
_
A
[8
:1
4]
EPH
Y
Y
FE
_TS_
D
D
A
TA
[0
[0
:7
]
Au
di
di
o
A
MP
ST
A380B
A380B
WE
C
o
mpo
n
e
n
t
Y
/Pb
/Pr
, L
, L
/R
C
I S
lo
t:
O
n
ly
L
M5
7
7
0
0
fo
r C
h
in
a
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