Read LG 42HIZ22 (CHASSIS:LP62F) Service Manual online
BLOCK DIAGRAM
- 22 -
Di
s
c
ret
e
I
R
RS
2
3
2
RG
B
(P
C
/D
T
V
)
PC
_
A
u
d
io
RF
IR
Co
rt
e
z
FLI
8
6
6
2
CX
A
2
06
9Q
Sw
it
c
h
TX
ST3
2
32
C
Rx 0
/1
Tx
0
/1
TXD
/
R
XD
74
H
C
1
4
DS
U
B
_
S
C
L
/ D
S
B
U
_S
D
A
DS
_
V
S
/
DS
_
H
S
VG
A
_
R
G
B
MS
P
4
4
50K
S/
W
&
C
O
N
T
R
O
L
PC
_
S
TE
R
E
O
A
U
D
IO
PC
_
A
u
d
io
_
L
/R
Tu
n
e
r
(W
3
0
3P
)
TU
_
M
A
IN
S I
F
AM
_
A
u
d
io
AM
_
A
u
d
io
/
S
I
F
AV
YC
IN
3
AV
IN
3
_
R
IN
/L
IN
CO
M
P
CO
M
P
_
Y
/P
b
/P
r
CO
M
P
_
R
IN
/L
IN
TV
_
L
/R
O
U
T
S-
A
V
CO
M
P
_
Y
/P
b
/P
r
AV
AV
IN
4
_
R
IN
/L
IN
T
PA3
1
0
0
AV
_
L
R
SU
B
_
V
o
r
Y/
C
O
U
T
MA
IN
_
V
o
r
Y/
C
O
U
T
31
P
_
L
V
D
S
Tx
0
/1/
2
/3/
4
/C
DI
S
P
_
E
N
SC
L
/SD
A
_
Pa
rt
HY
5
D
U
2
81
62
2E
T
P
DDR
R
A
M
(128
M
B
X
2
)
AT
4
9
B
V
160
C
F-
R
O
M
(2
M
B
)
V_
O
U
T
1
Y_I
N
1
L_
S
P
K
_
OU
T
L+
S
P
K
_
OU
T
I
2
S
24C
0
2
I
2
C
I
2
C
I
2
C
HD
M
I_
L
/R
RX
0
/1/
2
/C
L
K
–
HD
M
I
(P
C
/DT
V
)
SC
A
R
T
1
SC
A
R
T
2
SC
AR
T
1
, 2
_
R
IN
/L
IN
SC
A
R
T1
,
2_
ID
DS
_
V
S
/
D
S
_
H
S
SC
A
R
T_
R
G
B
/F
B
SC
A
R
T_
R
G
B
/F
B
SI
L
9
0
1
1
24
C
0
2
HDM
I
HDM
I
CO
M
P
_
R
IN
/LIN
SP
E
A
K
E
R
O
U
TP
U
T
(M
O
N
O)
Ex
t_
M
O
N
O
_
S
PK
_
O
U
T
R_
S
P
K
_
O
U
T
R+
S
P
K_
O
U
T
L/
R
S
o
u
n
d
1
RJ
4
5
Ex
t_
M
O
N
O
_
S
P
K
_
O
U
T
SC
L
/SD
A
T
PA0
2
4
2
Ex
t_
M
O
N
O
_
S
P
K
_
O
U
T
L/
R
S
o
u
n
d
2
M6
2
3
20
F
P
RJ
P
_
C
o
n
tr
o
l
I
2
C
NJ
U
2
69
01
I
2
S
LA7
2
17
Sy
n
c
d
e
te
c
t
Sy
n
c
d
e
te
c
t
I
2
S
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