Read LG 32LB9D (CHASSIS:LB73B) Service Manual online
- 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
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