DOWNLOAD LG 22LN4500 (CHASSIS:LD31A) Service Manual ↓ Size: 3.85 MB | Pages: 31 in PDF or view online for FREE

Model
22LN4500 (CHASSIS:LD31A)
Pages
31
Size
3.85 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
22ln4500-chassis-ld31a.pdf
Date

LG 22LN4500 (CHASSIS:LD31A) Service Manual ▷ View online

- 16 -
4. No Video - Component
5. No Video - RGB
- 17 -
6. No Video - HDMI
7. No Audio
- 18 -
LGE2
121
-M
S1
(M
SD
80
4K
K
X)
M
st
ar
M
1(
L1
3)
C
OM
P
ON
EN
T
C
OM
P
ON
EN
T
R
S
R
S
-
-
23
2C
23
2C
[Op
tio
n
 : 
On
ly
 h
o
te
l m
o
d
el]
[Op
tio
n
 : 
On
ly
 h
o
te
l m
o
d
el]
R
G
B
R
G
B
M
A
X
32
32
C
D
R
M
A
X
32
32
C
D
R
D
SU
B
_R
/G
/B
/H
/V
A
u
d
io
 IN
A
u
d
io
 IN
H
P
 L
 &
 R
 o
u
t
C
OM
P
_Y
 , 
P
b
,P
r
C
OM
P
_L
 &
 R
_IN
U
SB
  (
Jp
eg
,M
P
3,D
V
IX
)
U
SB
  (
Jp
eg
,M
P
3,D
V
IX
)
A
P
21
91
D
SG
A
P
21
91
D
SG
LG
IT
 H
A
LF
 l 
N
IM
(D
V
B
 T
/C
)
LG
IT
 H
A
LF
 l 
N
IM
(D
V
B
 T
/C
)
SC
A
R
T
 (F
u
ll)
SC
A
R
T
 (F
u
ll)
P
C
M
C
IA
 S
lo
t
P
C
M
C
IA
 S
lo
t
FE
_T
u
n
er
_S
D
A
&
SC
L
SC
A
R
T_
O
U
T
74
LV
C
54
1A
Bu
ffe
r
IC
50
2
74
LV
C
54
1A
Bu
ffe
r
IC
50
2
FE
_T
S_
C
LK
FE
_T
S_
V
A
Er
ro
r
FE
_T
S_
SY
N
C
FE
_T
S_
D
A
TA
B
u
ffe
r_
FE
_T
S_
C
LK
B
u
ffe
r_
FE
_T
S_
V
A
L
Er
ro
r
B
u
ffe
r_
FE
_T
S_
SY
N
C
B
u
ffe
r_
FE
_T
S_
D
A
TA
[0
]
D
D
R
SD
R
A
M
(구주
/ 브라질
/ 아
시아
2G
B
)


: 1
G
B
D
D
R
SD
R
A
M
(구주
/ 브라질
/ 아
시아
2G
B
)


: 1
G
B
D
D
R
SD
R
A
M
(1
G
B
)
D
D
R
SD
R
A
M
(1
G
B
)
N
A
N
D
 F
la
sh
(브라질
: 2
G
B
)
(그

: 1
G
B
)
N
A
N
D
 F
la
sh
N
A
N
D
 F
la
sh
(
(
브라질
브라질
: 2
G
B
)
: 2
G
B
)
(
(
: 1
G
B
)
: 1
G
B
)
74
LC
X
24
4
Bu
ffe
r
IC
50
1
74
LC
X
24
4
Bu
ffe
r
IC
50
1
C
I_
C
LK
C
I_
V
IA
Er
ro
r
C
I_
SY
N
C
C
I_
D
A
TA
[0
~
7]
C
A
D
D
R
[0
~
7]
P
C
M
_D
A
TA
 [0
~
7]
P
C
M
_A
[0
~
7]
C
I_
A
D
D
R
[0
~
14
]
R
EG
C
I_
OE
C
I_
IOR
D
C
I_
IOW
R
C
I-W
E
P
C
M
_A
[0
~
14
]
FE
_D
E_
SD
A
&
SC
L
SE
R
IA
L
Fla
sh
SE
R
IA
L
SE
R
IA
L
Fla
sh
Fla
sh
C
V
B
S&
 S
ca
rt
R
G
B
TV
 L
&
R
 S
o
u
n
d
F_
R
B
P
F-
OE
P
F_
C
EO
SP
I_
C
K
SP
I_
C
I
SP
I_
C
S
SP
I_
D
O
D
D
R
D
at
a[
0:1
5]
D
D
R
A
d
d
re
ss
[0
:1
2]
D
D
R
D
at
a[
0:1
5]
D
D
R
A
d
d
re
ss
[0
:1
2]
Sy
st
em
 
EE
P
R
OM
Sy
st
em
 
Sy
st
em
 
EE
P
R
OM
EE
P
R
OM
EE
P
R
OM
 S
C
&
 S
D
A
P
an
el
P
an
el
D
M
B
[L
ED
 D
riv
er
 IC
]
D
M
B
[L
ED
 D
riv
er
 IC
]
D
M
B
[L
ED
 D
riv
er
 IC
]
D
ig
ita
l a
m
p
(N
TP
75
13
)
D
ig
ita
l a
m
p
(N
TP
75
13
)
SP
 (L
)
SP
 (L
)
SP
 (R
)
SP
 (R
)
W
LE
D
-S
ta
tu
s
W
LE
D
_E
N
A
B
LE
OV
P
_S
EL
C
H
_S
EL
W
LE
D
_D
IM
_A
D
J
A
u
d
io
_ M
as
te
r_
C
LK
/D
A
TA
[3
]
LV
D
S
C
h
SIF
지역별
지역별
Op
tio
n
Op
tio
n
처리
처리
(D
V
B
(D
V
B
향만
향만
)
)
-
-
DV
B
DV
B
-
-
T/
C
 : 
TDS
S
T/
C
 : 
TDS
S
-
-
G
50
1D(
H
alf 
N
IM
)
G
50
1D(
H
alf 
N
IM
)
-
-
A
TS
C
: T
D
SS
A
TS
C
: T
D
SS
-
-
H
50
1F
 (H
alf 
N
IM
)
H
50
1F
 (H
alf 
N
IM
)
-
-
IS
DB
 
IS
DB
 
: T
DS
N
: T
DS
N
-
-
B
60
1F
 (F
u
ll 
N
IM
)
B
60
1F
 (F
u
ll 
N
IM
)
지역별
지역별
Op
tio
n
Op
tio
n
처리
처리
지역별
지역별
Op
tio
n
Op
tio
n
처리
처리
(D
V
B
/
(D
V
B
/
중국
중국
)
)
A
M
P
 S
C
L&
SD
A
C
V
B
H
D
M
I_
TM
D
&
 H
D
M
I2
C
D
D
R
3: 
80
0M
H
z
모델별
모델별
Op
tio
n
Op
tio
n
처리
처리
(2
6/
29
in
ch
 3
3D
(2
6/
29
in
ch
 3
3D
모델은
모델은
듈에
)
)
H
D
M
I(
M
H
L)
H
D
M
I(
M
H
L)
H
ea
d
p
H
ea
d
p
h
h
o
n
e
o
n
e
BLOCK DIAGRAM
- 19 -
A2
A31
900
200
400
401
540
521
800
910
120
300
501
531
510
301
122
LV
1
801
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
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