LG 32LB9D (CHASSIS:LB73B) Service Manual ▷ View online
- 29 -
AT
I
X
260
MPE
G
2
D
e
c
o
d
e
AC
3
D
e
c
o
d
e
DT
S
b
y
p
a
s
s
SI
F
D
e
m
o
d.
S
R
S
T
ruS
u
rr
o
un
d
Do
lb
y
p
ro
L
o
g
ic
BBE
Tr
e
b
le
/b
a
s
s
c
o
n
tr
o
l
Ba
la
n
c
e
c
o
n
tr
o
l
Vo
lu
m
e
c
o
n
tr
o
l
AT
I
X
260
MP
E
G
2
D
e
c
o
d
e
AC
3
D
e
c
o
d
e
D
T
S
by
pa
s
s
SI
F
D
e
m
o
d.
SR
S
Tr
u
S
u
rr
o
u
n
d
D
o
lb
y pr
o
L
ogi
c
BBE
T
reb
le
/b
as
s
c
o
n
tr
o
l
Ba
la
n
c
e
c
o
n
tr
o
l
Vo
lu
m
e
c
o
n
tr
o
l
M
SP4
4
5
0
K
M
SP4
4
5
0
K
CO
M
P
1
RG
B
(P
h
o
n
e
j
a
c
k
)
CO
M
P
2
AV
1
AV
2
MN
T
Ou
t L
/R
2
N
T
P
300
0
P
W
M
M
odu
la
to
r
&
Dig
it
al
aud
io
s
ig
n
al
Pr
o
c
e
s
s
&
D
igi
ta
l A
m
p.
3
1
Sp
e
a
k
e
r L
Sp
e
a
k
e
r R
2
2
1
X2
6
0
_
S
P
D
IF
_O
U
T
SP
D
IF
O
U
T
SP
D
IF
O
U
T
SPD
IF
_
O
U
T
1
I2
S
(
D
AT
A,
L
R
CL
K
, S
C
L
K
)
3
L/
R
2
2
2
2
2
I2
S
3
1
LC
LP
F
LC
LP
F
LC
LP
F
LC
LP
F
R
x
_
HDM
I_
S
P
DI
F
SI
F
1
D
a
ta
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L
K
/V
a
li
d
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rr
o
r/S
o
p
TP
1
D
a
ta
/C
L
K
/V
a
li
d
/E
rr
o
r/S
o
p
TP
1
12
TPA
Tu
n
e
r
HD
M
I2
88
8
HD
M
I3
Rx
C
/0
/1
/2
Rx
C
/0
/1
/2
HD
M
I1
88
Rx
C
/0
/1
/2
3:
1
DE
M
U
X
3:
1
DE
M
U
X
MS
T3
3
6
1
2HD
M
I +
3A
D
C
MS
T3
3
6
1
2HD
M
I +
3A
D
C
8
CS
8
4
1
6
SPD
IF
R
x
S
P
D
IF
=
>
I2
S
CS
8
4
1
6
SP
D
IF
R
x
S
P
D
IF
=>I
2
S
I2
S
(
D
AT
A,
L
R
CL
K
, S
C
L
K
)
3
AU
D_
M
C
L
K
I2
S
(
D
A
T
A,
L
R
C
L
K,
S
C
L
K
)
–
–
–
2. AUDIO
- 30 -
MI
C
O
M
1
3
P
IN
PSU
C
a
b
le
VB
R
_
A
V
668(
L
C
D
_
H
D
)
VB
R
_
A
VB
R
_
A
VB
R
_
B
_
H
D
V
B
R
_
B
_
EXT
AI
_
o
n/o
ff
AI_
o
n/
o
ff
V
B
R
_
B
_
EXT
Vb
r_
B
_
H
D
V
668(
L
C
D
_
H
D
)
VB
R
_
B
_
H
D
V
668(
L
C
D
_
H
D
)
VB
R
-
A
(P
S
U
#
10)
Am
p
li
tu
d
e
c
o
n
tr
o
l
-0
V
:
9
0
%
-
1
.65V
:
100%
-
3
.3
V
:
110%
-
O
p
e
n
:
1.
65(
100%
)
VB
R
-
B
(P
S
U
#
7
)
PW
M
D
u
ty
-0
V
:
T
D
B
(42
120H
z
)
20%
(3
7
1
2
0
H
z
)
30%
(3
2
120H
z
)
-
3
.3
V
:
100%
PW
M_
D
im
m
in
g
Br
i_
c
tr
l
RE
A
D
Y
RE
A
D
Y
31
P
in
L
V
D
S
C
a
b
le
"
"
"
3. VBR Application
MEMO
- 31 -
- 32 -
EXPLODED VIEW
300
530
590
591
531
532
700
120
900
400
200
210
230
580
581
260
220
240
250
520
521
600
601
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