LG 42LM3450 / 42LM345S / 42LM345T (CHASSIS:LD21B) Service Manual ▷ View online
- 17 -
Et
he
rn
et
R
G
B
P
C
SP
D
IF
C
om
po
ne
nt
1
H
D
M
I1
/2
(D
VI
)
PC
/D
VI
A
ud
i I
IF
+
/-
TU
_C
VB
S
S
IF
L/
R
LG
21
11
A
IC
10
1
SE
R
IA
L
FL
A
SH
IC
14
01
(8
M
b
it)
M
X2
5L
80
05
M
2I
LV
D
S
(F
H
D
/5
0H
z)
A
ud
io
A
M
P
ST
A
38
0B
W
E
U
SB
1
DP/D
M
SP
K
L
/R
X-
ta
l
24
M
FP
C
(5
1P
)
I2
S
S
P
D
IF
C
V
BS
, Y
/P
b/
P
r,
L/
R
R
G
B
/H
/V
Rear
TM
D
S
D
D
R
3
A
dd
.
D
D
R
3
D
at
a
S
P
I
Si
de
N
A
N
D
F
LA
SH
IC
10
2
(2
G
bi
t)
P
C
M
_A
[0
:7
]
TM
D
S
H
D
M
I3
D
D
R
3
1G
b
IC
12
02
H
5T
Q
1G
63
B
FR
D
D
R
3
1G
b
IC
12
01
H
5T
Q
1G
63
B
FR
C
O
N
TR
O
L
IR &
LE
D
/
SO
FT
T
O
U
C
H
(T
A
C
T
SW
IT
C
H
)
S
E
N
S
O
R
_S
C
L/
S
D
A
LE
D
_R
K
E
Y1
K
E
Y2
IR
M
24
M
01
-H
R
M
N
6T
P
IC104
25
6K
bi
t
I2
C
TM
D
S
H
D
M
I3
Ex
ce
pt
o
f
LS
35
00
/C
S4
60
F-
SC
AR
T
S
C
1_
C
V
BS
_I
N
S
C
1_
R
/G
/B
FE
_
V
O
U
T
CI Slot
74
LC
X2
44
B
uf
fe
r
TS
_D
A
TA
[0
:7
]
P
C
M
_D
A
TA
[0
:7
]
FE
_T
S
_D
AT
A
[0
:7
]
P
C
M
_A
[8
:1
4]
Et
he
rn
et
R
G
B
PC
SP
D
IF
PC
/D
VI
A
ud
iI
L/
R
S
P
D
IF
R
G
B
/H
/V
U
SB
2
DP/D
M
E
P
H
Y
TD
SS
TD
SS
-
-
G
10
1D
G
10
1D
(L
G
IT
)
(L
G
IT
)
BLOCK DIAGRAM
Applied Model : 42LM3450
- 18 -
Et
he
rn
et
R
G
B
P
C
SP
D
IF
C
om
po
ne
nt
1
HDMI1/2(DVI
)
TD
SN
TD
SN
-
-
G
30
1D
G
30
1D
(L
G
IT
)
(L
G
IT
)
PC
/D
VI
A
ud
i I
n
TU
_C
VB
S
S
IF
L/
R
LG
21
11
A
IC
10
1
SE
R
IA
L
FL
A
SH
IC
14
01
(8
M
b
it)
M
X2
5L
80
05
M
2I
LV
D
S
(F
H
D
/5
0H
z)
U
SB
1
DP/D
M
SP
K
L
/R
X-
ta
l
24
M
FP
C
(5
1P
)
I2
S
S
P
D
IF
C
V
BS
, Y
/P
b/
P
r,
L/
R
R
G
B
/H
/V
Rear
TM
D
S
D
D
R
3
A
dd
.
D
D
R
3
D
at
a
S
P
I
Si
de
N
A
N
D
F
LA
SH
IC
10
2
(2
G
bi
t)
P
C
M
_A
[0
:7
]
TM
D
S
H
D
M
I3
D
D
R
3
1G
b
IC
12
02
H
5T
Q
1G
63
B
FR
D
D
R
3
1G
b
IC
12
01
H
5T
Q
1G
63
B
FR
C
O
N
TR
O
L
IR &
LE
D
/
SO
FT
T
O
U
C
H
(T
A
C
T
SW
IT
C
H
)
S
E
N
S
O
R
_S
C
L/
S
D
A
LE
D
_R
K
E
Y1
K
E
Y2
IR
M
24
M
01
-H
R
M
N
6T
P
IC104
25
6K
bi
t
I2
C
TM
D
S
H
D
M
I3
Ex
ce
pt
o
f
LS
35
0T
/C
S4
60
T
F-
SC
AR
T
S
C
1_
C
V
B
S
_I
N
S
C
1_
R
/G
/B
FE
_
V
O
U
T
CI Slot
74
LC
X2
44
B
uf
fe
r
TS
_D
A
TA
[0
:7
]
P
C
M
_D
A
TA
[0
:7
]
FE
_T
S
_D
AT
A
[0
:7
]
P
C
M
_A
[8
:1
4]
R
G
B
PC
SP
D
IF
PC
/D
VI
A
ud
iI
n
L/
R
S
P
D
IF
R
G
B
/H
/V
U
SB
2
DP/D
M
E
P
H
Y
FE
_T
S
_D
AT
A
[0
:7
]
A
ud
io
A
M
P
ST
A
38
0B
W
E
Applied Model :42LM345T
- 19 -
Et
he
rn
et
R
G
B
P
SP
D
IF
C
om
po
ne
nt
1
HDMI1/2(DVI
)
TD
SQ
TD
SQ
-
-
G
00
1D
G
00
1D
(L
G
IT
)
(L
G
IT
)
PC
/D
VI
A
u
TU
_C
VB
S
S
IF
L/
R
SE
R
IA
L
FL
A
SH
IC
14
01
(8
M
b
it)
M
X2
5L
80
05
M
2I
LV
D
S
(F
H
D
/5
0H
z)
U
SB
1
DP/D
M
SP
K
L
/R
X-
ta
l
24
M
FP
C
(5
1P
)
I2
S
S
P
D
IF
C
V
BS
, Y
/P
b/
P
r,
L/
R
R
G
B
/H
/V
Rear
TM
D
S
D
D
R
3
A
dd
.
D
D
R
3
D
at
a
S
P
I
Si
de
N
A
N
D
F
LA
SH
IC
10
2
(2
G
bi
t)
P
C
M
_A
[0
:7
]
TM
D
S
H
D
M
I3
D
D
R
3
1G
b
IC
12
02
H
5T
Q
1G
63
B
FR
D
D
R
3
1G
b
IC
12
01
H
5T
Q
1G
63
B
FR
C
O
N
TR
O
L
IR &
LE
D
/
SO
FT
T
O
U
C
H
(T
A
C
T
SW
IT
C
H
)
S
E
N
S
O
R
_S
C
L/
S
D
A
LE
D
_R
K
E
Y1
K
E
Y2
IR
M
24
M
01
-H
R
M
N
6T
P
IC104
25
6K
bi
t
I2
C
TM
D
S
H
D
M
I3
Ex
ce
pt
o
f
LS
35
0S
/C
S4
60
S
F-
SC
AR
T
S
C
1_
C
V
BS
_I
N
S
C
1_
R
/G
/B
FE
_
V
O
U
T
CI Slot
74
LC
X2
44
B
uf
fe
r
TS
_D
A
TA
[0
:7
]
P
C
M
_D
A
TA
[0
:7
]
FE
_T
S
_D
AT
A
[0
:7
]
P
C
M
_A
[8
:1
4]
Et
he
rn
et
R
G
B
P
SP
D
IF
PC
/D
VI
A
u
L/
R
S
P
D
IF
R
G
B
/H
/V
U
SB
2
DP/D
M
E
P
H
Y
FE
_T
S
_D
AT
A
[0
:7
]
A
ud
io
A
M
P
ST
A
38
0B
W
E
LG
21
11
A
IC
10
1
Applied Model : 42LM345S
- 20 -
A2
A10
A9
900
300
200
400
540
521
530
510
910
120
123
501
122
500
LV
1
* Set + Stand
* Stand Base + Body
AG
1
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.
IMPORTANT SAFETY NOTICE
Click on the first or last page to see other 42LM3450 / 42LM345S / 42LM345T (CHASSIS:LD21B) service manuals if exist.