LG 32LB4DS (CHASSIS:LA73A) Service Manual ▷ View online
- 29 -
AT
I
(X
260)
I2
C
Ma
s
te
r
AT
/
N
T
T
u
n
e
r
0x
C
2
HDM
I
AD
C
(M
S
T
3361)
0X
9C
Te
m
p
.
Se
n
s
o
r
(L
M
75)
0X
9
4
U-
C
o
m
(M
T
V
416)
0x
50
I2
C
_
C
H
1
(
+
3.
3V
_
L
&
+
5
V
_
L
)
I2
C
_
C
H
2
(
+
3.
3V
_
L
&
+
5
V
_
L
)
I2
C
_
C
H
3
(
+
3.
3V
_
L
)
Po
rt
Ex
p
a
n
d
e
r
(M
62320)
0X
74
Au
d
io
Sw
it
c
h
(M
S
P
4450K
)
0X
80
DA
S
P
(N
T
P
3
000)
0X
5
4
PD
P
M
o
d
u
le
0x
1C
VS
B
/
Q
A
M
(L
G
D
T
3703)
Ma
in
0X
1C
Li
v
e
D
ead
C
S
8416A
0X
20(
W
)
0X
21(
R
)
EE
P
R
O
M
(24L
C
512)
0x
A
6
CH
1
CH
2
CH
3
F
R
C
9
4
XYH
0x
D
4
EE
P
R
O
M
(24L
C
16)
5V
5V
5V
2.
5V
- 30 -
+
12.0V
+
12.0V
+6
.0
V
+6
.0
V
C
S
4344
C
S
4344
C
S
5340
C
S
5340
PQ05
D
Z
1
U
PQ05
D
Z
1
U
KI
A
7
8R09
KI
A
7
8R09
FAN
1
FAN
1
KI
A
7
8R09
KI
A
7
8R09
FAN
2,
3
FAN
2,
3
M
C
3
3078
M
C
3
3078
X260
X260
HY
B18
T512
(4EA
)
HY
B18
T512
(4EA
)
A
Z
1117
H
-1.8
A
Z
1117
H
-1.8
LM7
5
LM7
5
IC
L3232
CB
N
Z
IC
L3232
CB
N
Z
+
5
.0
VS
T
+5
.0
V
S
T
+
3
.3
V_L
+3
.3
V
_
L
AT
/N
T Tune
r
AT
/N
T Tune
r
+5V
_
L
+5.
0V
S
I3865
S
I3865
PQ05
D
Z
1
U
PQ05
D
Z
1
U
Live
Dead
Live-o
n
A
Z
1117
H
-3.3
A
Z
1117
H
-3.3
LG
D
T
3703
(M
AIN
)
LG
D
T
3703
(M
AIN
)
S
C
1565
-1.8
S
C
1565
-1.8
IS
L6549
CB
IS
L6549
CB
1.2
V
1.8
V
IS
L6549
CB
IS
L6549
CB
1.8
V
M
K
3727
D
M
K
3727
D
74LV
T16373
(2
EA
)
74LV
T16373
(2
EA
)
S29GL256
S29GL256
T
H
C
63LV
D
1023
T
H
C
63LV
D
1023
+3.
3V
_
L
HY
B18
T512
(4EA
)
HY
B18
T512
(4EA
)
M
K
3727
D
M
K
3727
D
+
19.0V
+
19.0V
N
T
P3000
N
T
P3000
N
T
P3000
N
T
P3000
1.8
V
BA033
FP-3
.3
BA033
FP-3
.3
M
T
V
416
M
T
V
416
AZ1086
-1
.8
AZ1086
-1
.8
A
Z
1117
H
-3.3
A
Z
1117
H
-3.3
S
C
1565
-2.5
S
C
1565
-2.5
M
S
T
3369
M
S
T
3369
9.0
V
T
E
A6420
T
E
A6420
9.0
V
C
S
8416
C
S
8416
KI
A
7
8R09
KI
A
7
8R09
M
K
3727
D
M
K
3727
D
M
IC
2505
M
IC
2505
3
.3V
ST
_MIC
O
M
24
C08
24
C08
F
R
C
94XY
H
F
R
C
94XY
H
Live-o
n
24
C512
24
C512
S
T
M
A
V335
S
T
M
A
V335
ISP1504
ISP1504
M
IC
2505
M
IC
2505
K
IA7805
K
IA7805
A
Z
1085
S
-3.3
A
Z
1085
S
-3.3
A
Z
1085
S
-1.8
A
Z
1085
S
-1.8
24
C16
24
C16
FRC
FRC
S
C
1565
-2.6
S
C
1565
-2.6
M
IC
3910
-2
.5
M
IC
3910
-2
.5
S
C
1592
-1.0
S
C
1592
-1.0
12.0
V
HY
5
D
U281622
HY
5
D
U281622
S
C
2595
-1.0
S
C
2595
-1.0
- Power
MEMO
- 31 -
- 32 -
EXPLODED VIEW
300
200
200T
200N
600
700
120
530
590
591
430
210
580
520
410
400
582
581
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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