Read LG 22LK310 (CHASSIS:LP91J) Service Manual online
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BLOCK DIAGRAM
RGB-PC
(JK
20
2)
TUN
ER
(T
U500)
COMP
ONENT /
AV
1
Aud
io
ou
t (
JK
10
2)
AV
2
(J
K
2
0
1
)
A
V
_L
IN/RIN
:
50
0
m
V
rm
s
SP
K
_
L
SP
K
_
R
COM
P
ONENT
_
L
/R
:
500
m
V
rm
s
AV
_
V
IN
:
1V
p
p
NT
P
3
2
0
0L
COM
P
_
Y
/Pb
/Pr
IR
&
L
E
D (P201
)
HDM
I_DA
T
A
0
TU
_M
A
IN
CO
M
P
O
N
ENT
_
Y/Pb
/P
r
:
1/
0.
7
V
p
p
AV
_
V
IN
COM
P
_L
IN
/RIN
L_
C
H
R_CH
A
V
_L
IN/RIN
PC-S
OU
ND
(JK
20
3)
I2S
_
M
C
L
K
I2
S_
SDO
I2S
_
W
S
I2
S_
SC
K
TM
D
S
L
IPS
RL
_
O
N
/ID
ISP
_
EN
PA
NEL
_
ST
A
T
US
E-
DI
M
OP
C_OUT
EEP
RO
M
(24L
C25
6
)
Ser
ial Fl
as
h
(M
X25L
64)
EEP
RO
M
HDC
P
(24
W
C08)
EEP
_
S
CL
/SDA
EEP
_
S
CL
/SDA
TX
C
E
2
–
TX
C
E
3–
TX
C
L
K
E
–
TX
C
E
1
–
TX
C
E
0
TX
C
O
1
–
TX
C
O
3
–
TX
C
O
2
–
TX
C
O
0
–
TX
C
L
K
O
–
M_
S
C
L
/S
D
A
MAI
N
S
C
L
A
E
R
Matri
x
(L
G
E
4767
A
)
(I
C800
)
EE
P
R
OM
24
C02
IC30
2
TU
5
0
0
IC
80
2
IC
80
3
IC
80
1
IC
60
0
P40
2
P40
3
M
_
SCL
/SDA
SIDE
REA
R
HDM
I3
(J
K
3
0
3
)
USB
(J
K
2
0
4
)
RS-232
C
(JK
20
0)
USB(SV
C)
(JK
20
5)
HDMI1
(JK
30
1)
HDMI2
(JK
30
2)
EE
P
R
OM
24
C02
IC30
1
EE
P
R
OM
24
C02
IC30
0
EE
P
R
OM
24
C02
IC30
0
DDC_
S
CL
1/S
D
A
1
DDC_
S
CL
2/S
D
A
2
DDC_
S
CL
3/S
D
A
3
Con
tr
o
ll
e
r
S
T
3232
CDR
IC20
0
RXD/T
X
D
EE
P
R
OM
24
C02
IC20
1
DSU
B
_S
CL
/SD
A
P40
1
SP
I_CZ
/DO
SP
I_CL
K
/DI
HDM
I_DA
T
A
1
HDM
I_DA
T
A
2
US
B
DN/DP
P
C
_R/G/B
PC_
V
S
/H
S
TX
D
/R
X
D
PC_
A
U
D
_
L
/R
TX
C
O
4
–
TX
C
E
4–
FH
D LV
DS
co
nne
cto
r
HD L
VD
S c
onnec
to
r
DDR
2 SDR
A
M
(512
M
B
y
te
)
IC
900
DDR
2_
CK
E
DDR
2_
WE
Z
DDR
2_
DQS
0
–
DDR
2_
M
C
L
K
DDR
2_
B
A
0/1
DDR
2_
DQS
1
–
DDR
2_
ODT
DDR
2_
DQM
0
/1
SI
DE_
V
IN
S
IDE
_L
IN/RIN
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