LG 22LQ630H, Service Manual, Page: 21 / 39

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Only for training and service purposes
BLOCK DIAGRAM
D
D
R
3
(2
G
b
it
)
K4
B2
G
1
6
4
6
C
-H
C
H
9
IC
1
2
0
1
N
AN
D
F
la
s
h
(2
G
b
it
)
H
Y
2
7
U
F
0
8
2
G
2
B
T
PC
B
IC
1
0
2
D
ig
it
a
l
AM
P
N
T
P7
4
0
0
IC
5
0
1
I2
S
A
_
D
a
ta
[0
:1
5
],
D
D
R
2
(1
G
b
it
)
K4
B1
G
1
6
4
6
G
-BC
H
9
IC
1
2
0
2
B
_
D
a
ta
[0
:1
5
],
A
d
d
r.
[
],
c
tr
l,
D
Q
S
,
D
M
…
P
C
M
_
A
[
0
…
7
]
IF
N
/P
S
IF
T
U
_
C
V
B
S
X
-t
a
l
R
e
se
t
/
IF
_
A
G
C
…
S
D
A
/S
C
L
_
5
V
R
e
s
e
t
S
w
it
c
h
C
S
,
R
E
,W
E
……
R
X
/T
X
M
ic
o
m
(M
SP4
3
0
F
5
4
1
9
IPZ
R
)
IC
1
6
0
2
2
4
M
H
z
J
A
C
K
P
A
C
K
J
A
C
K
P
A
C
K
a
t
R
EA
R
a
t
R
EA
R
S
C
L
,
S
D
A
_
3
.3
V
R
F
S
7
L
R
(L
G
E
1
0
5
D
B
-L
F
-1
)
IC
1
0
1
R
S-2
3
2
C
(SVC
)
S
/W
R
e
s
e
t
T
D
VJ
-
H
0
3
1
F
E
X
T
_
O
U
T
I2
C
(S
C
L
/S
D
A
)
S_
F
L
ASH
(8
M
b
it
)
M
X
2
5
L
8
0
0
6
EM
2
I-1
2
G
IC
2
0
0
Po
w
e
r
A
M
P
T
PA6
0
1
1
A4
P
W
P
R
G
4
IC
1
1
0
0
JK
1
1
0
0
JK
6
0
0
0
R
JP
_
C
T
R
L
JK
5
0
1
Pro
:I
d
o
m
L
G
D
T
1
1
2
9
IC
1
2
0
9
T
S
_
C
L
K
,V
A
L
ID
,S
Y
N
C
,0
~
7
P
M
_
T
S
_
C
L
K
,V
A
L
ID
,S
Y
N
C
,0
~
7
T
M
M
B
-H
0
0
1
P
B-L
AN
T
V
-l
in
k
C
F
G
G
a
m
e
co
n
tr
o
l
T
V
-l
in
k
C
F
G
G
a
m
e
co
n
tr
o
l
A
u
d
io
L
/R
PC
A
u
d
io
P
1
1
0
3
JK
1
1
0
2
A
u
d
io
L
/R
PC
A
u
d
io
P
1
1
0
3
JK
1
1
0
2
H
D
M
I
1
H
D
M
I
2
H
D
M
I
1
H
D
M
I
2
R
G
B
PC
A
V
U
SB
R
G
B
/H
/V
C
V
B
S
,
L
/R
D
P
/D
M
/
+
5
V
J
A
C
K
P
A
C
K
J
A
C
K
P
A
C
K
a
t
Si
d
e
a
t
Si
d
e
U
ni
ve
rs
al
P
ill
ow
U
ni
ve
rs
al
P
ill
ow