AOC L32W781B, Service Manual

Page: 41 / 94

32’’
LCD
TV AOC
L32W781B
41
3.
3V
_
S
B
3.
3V
_
S
B
HDM
IH
O
T
P
L
U
G
2
D2
2
3
NC
1
3
2
D
2
08
L
L
41
48
R3
0
8
NC
74LVC 14
U
202
74
LVC
1
4A
D
T
1
2
3
4
5
6
9
8
11
10
13
12 7
14
1A
1Y
2A
2Y
3A
3Y
4A
4Y
5A
5Y
6A
6Y
GN
D
VC
C
R3
3
5
0 1
/1
0
W
ǂ
ISP S
witch
R
2
7
4
0
1/
10W
ǂ
+
C
208
10u
F
/16V
D2
1
2
BAV
99
1
3
2
5V_S
D
A
2,
4,
5
,7
KEY
_
A
D
RX
+
C2
3
7
10
uF
/1
6
V
D2
1
8
BAV
99
1
3
2
R3
0
0
10
K
1/
10W
ǂ
R24 9
100K 1/10W
ǂ
R
262
NC
uP
_A4
SC
L
E
C2
3
5
10
0
p
F
uP
_
A
D
3
VGA
_
VS
R
2
1
3
1
0
0
1/
10
W
ǂ
uP_
A
3
AU
D
IOS
W
2
5V
AU
D
IOSW
2
R
2
10
2
2
1/
10
W
ǂ
3/
21
'0
7
jo
hn
ny
5V
_
S
B
A1
6
A9
SD
A
E
R
2
36
10
0
1/
10W
ǂ
R3
1
2
4.
7K
1/
10
W
ǂ
D
205
L
L41
48
S
3.
3V_
S
B
uP
_
A
D
7
R
2
2
7
22
1/
10
W
ǂ
2
D
T
V_SC
L
2
Fl
a
s
h
_
RS
T
uP
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6
R25 0
100K 1/10W
ǂ
R
2
9
4
4.
7K
1/
10
W
ǂ
1
3V
_SC
L
BY
T
E
E_
P
A
G
E
A1
2
R2
2
6
NC
C2
2
3
0.
04
7u
F
CS
1
uP_
A
1
PS
R28 0 0 1/1 0W
ǂ
R
3
30
0
1/
10
W
ǂ
R2
0
2
4.
7K
1/
10
W
ǂ
R2
0
5
NC
5V
_
S
B
uP
_AD
3
A1
4
C2
2
9
18
pF
FB
2
1
0
150
O
H
M
U2
0
9
NDC7
0
0
2
N
1 2 3
4 5 6
G1 S2 G2
D2 S1 D1
R2
0
6
NC
R2
8
6
47K
OH
M
1
%
1
/10
W
3V
_
S
C
L
2,
4,
5
A1
8
R2
0
8
NC
R
2
6
0
2K
1/
10
W
ǂ
8-
pin
, 3
0
0
mil
DI
P w
i
t
h
s
ock
et
E4
27
AT
M
B
AW
Z
E
2
1
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AT
-4
23
5
Cu
s
to
m
38
W
edn
es
d
a
y
, J
u
n
e
06,
200
7
71
5
T
2
2
89
-1
<
⿄⠍
>
03
VG
A_I
N
& M
C
U
T
2
28
9-
1-
X
-X
-1-
0
7
0
6
0
6
OEM
M
O
D
E
L
S
iz
e
Re
v
Da
te
She
e
t
of
TP
V
MO
D
E
L
PC
B
N
A
M
E
⿄⠍
T
P V
(
T
o
p
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c
tor
y
El
ec
tr
on
ic
s
C
o
.
,
L
td
. )
K
e
y C
o
m
p
on
en
t
㍀
䱨
⪰
㌾
㝍
uP_
A
0
uP
_A6
uP_
A
0
C2
2
4
0.
47
u
F
R
2
43
2
2
1/
10
W
ǂ
D
3.
3V_
S
B
3V
_T
X
A17
3V_
S
D
A
R
3
29
0
1/
10
W
ǂ
U2
1
0
FDC6
3
0
1
N
1 2 3
4 5 6
G1 S2 G2
D
2
S1 D1
D
VG
A
_
VS
IN
5
IN
VPR
O
8
uP
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2
uP
_
A
D
2
R
2
1
6
22
1/
10
W
ǂ
5V
SC
AR
T
1
_F
S
2,
5
SD
A
E
R24 7
100K 1/10W ǂ
R
2
1
7
22
1/
10
W
ǂ
+
C2
2
8
47
uF
/1
6
V
D2
2
5
BA
V99
1
3
2
R3
1
0
NC
R
ESE
T
_
L
4
PW
R
_
O
N
8
WE
#
A
UDI
O
S
W1
5V_
S
D
A
R2
9
1
NC
R2
4
5
0
1/
10
W
ǂ
R
2
52
4.
7K
1/
10
W
ǂ
R7
4
3
0 1
/1
0
W
ǂ
C2
1
8
10
0pF
HDM
IH
O
T
P
L
UG
1
D
211
NC
1 2
5V
AU
D
IOS
W
1
F
B
215
60
0 OH
M
R
2
1
1
2
2
1/
10
W
ǂ
1
MU
TE
7
LV
D
S
_P
W
8
A13 A10
CN2
0
3
CO
N
N
1 2 3 4 5 6 7 8
R2
3
5
10
0K
1/
10
W
ǂ
R
2
53
1
0
K
1/
10
W
ǂ
Keyp
ad / IR
Connecto
r
Conn
ect to K
eypad
Boar
d
3.
3V
_SB
AM
1
uP
_
A
D
3
R
261
1
K
1/
10W
ǂ
5V_
S
B
uP
_A7
uP
_
A
D
0
R2
8
9
NC
uP
_
A
D
[0.
.7
]
5
uP
_
A
6
AM0
Rx
D
R
2
54
1
0
K
1/
10
W
ǂ
C2
1
2
0.
1u
F
3.
3V
_
S
B
5V
_SC
L
uP_
A
D
7
RxD
U2
0
8
24
L
C
64
IS
N
G
1 2 3 4
5 6 7 8
A0 A1 A2 VSS
SD
A
SC
L
WP
VC
C
Q2
0
2
P
M
BS3
904
D2
0
7
BAT
5
4
S
3
1 2
U2
0
7
7
4
H
C
4
052
D
12 14 15 11 1 5 2 4 6 10 9
13
3
16
8
7
X0 X1 X2 X3
Y0 Y1 Y2 Y3 EN
A B
X Y
VD
D
GND
VEE
R2
6
6
NC
uP
_
A
D
0
A11
NMI
D21 5 NC 1 2
R2
8
8
1
0
0
1/
10
W
ǂ
F
B
211
600
OH
M
R
ESE
T
_
H
5
A8
uP
_
A
D
6
R2
9
3
NC
R2
5
6
0
1/
10
W
ǂ
ZD2
0
2
Z
MM5
V
6
C2
3
6
1
00p
F
C2
3
9
0.
1u
F
D20 3 LL414 8
3/
2'
07
jo
hn
ny
uP
_
A
D
2
uP
_
A
D
1
+
C2
0
9
10
uF
/1
6
V
C2
2
6
18p
F
R
3
40
10
0
1/
10W
ǂ
R2
7
5
3
3
K
1/
10
W
ǂ
5V
_SB
3.
3V_
S
B
C2
1
0
0.
1u
F
R3
3
3
NC
R2
7
7
1M 1/10W ǂ
R30 4
4.7K 1/10 W
ǂ
uP
_
A
D
2
RD#
R3
1
7
1
K
1/
10W
ǂ
uP
_
A
D
5
BY
T
E
AU
D
IOSW
2
U2
0
6
E
M
63
53B
X
2
S
P
3B-
2
.9
+
1 2
3
GN
D
R
E
SET
(R
E
SET
)
VD
D
VGA_
GI
N
5
VGA_
H
S
R2
2
2
4.
7K
1
/1
0
W
ǂ
R25 8
4.7K 1/1 0W ǂ
C2
0
4
NC
R
2
32
10
0
1/
10W
ǂ
3.
3V
_
S
B
uP
_
A
5
R3
1
1
4.
7K
1
/1
0
W
ǂ
uP
_
A
0
C2
3
2
0.
1u
F
C2
1
4
0.
1u
F
Q2
0
4
P
M
BS3
904
3/
29
'0
7
jo
hn
ny
3.
3V
_
S
B
AM1
U2
1
1
NC
11 12 13 15 16 17 18 19
10
9 8 7 6 5 4 3
25 24 21 23
2
26
1
20 22 27
28 14
D0 D1 D2 D3 D4 D5 D6 D7
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A1
0
A1
1
A1
2
A1
3
A1
4
/C
E
/O
E
/W
E
VC
C
GN
D
R2
6
8
0
1/
10W
ǂ
3
SC
D
T
4
5V_S
C
L
2,
4,
5
,7
AM
0
C2
3
0
10
0p
F
R2
9
6
NC
R3
2
3
10
0
1/
10
W
ǂ
R2
7
3
0
1/
10W
ǂ
3.
3V
_SB
3.
3V
_
S
B
R30 3
4.7K 1/10 W
ǂ
R25 7
4.7K 1/1 0W
ǂ
R21 8 75 1% 1/ 10W ǂ
C2
1
6
NC
Y2
0
1
27
.0
00M
H
z
FB
2
1
2
3
00 OH
M
1
2
3V_
S
D
A
2,
4,
5
uP_
A
D
5
uP
_AD
4
VGA_
VS
Tx
D
R2
7
0
0
1/
10W
ǂ
R2
6
4
0
1
/1
0
W
ǂ
VGA_
R
IN
5
VPP_
3
R
2
81
0
1/
10
W
ǂ
R25 1
100K 1/10W ǂ
R3
0
9
NC
805
1
_
R
D
#
5
3/
22
'0
7
jo
hn
ny
3.
3V
_SB
CX
_
IN
T
#
5
uP
_
A
D
1
A8
D22 4
VP ORT 060 3100KV 05
1 2
R
2
82
0
1/
10
W
ǂ
C
205
100
pF
I2
C A
ddr
es
s:
101
0 0
0
0
x
3.
3V_
S
B
3V
_R
X
IS
P_SW
FB
2
0
5
3
0
O
H
M
1
2
U2
0
5
SN
74
LVC
5
73
AD
BR
1
10
11
20
19 18 17 16 15 14 13 12
2 3 4 5 6 7 8 9
OE
GND
LE
VCC
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
D1 D2 D3 D4 D5 D6 D7 D8
R
307
10
0
1/
10W
ǂ
FB
2
0
6
15
0
O
H
M
1 2
R3
0
6
NC
R2
0
9
NC
C2
2
7
0.
04
7u
F
TX
A19
R2
8
5
0
1/
10
W
ǂ
C2
1
1
0.
1u
F
5V_
S
B
+
C2
2
0
10u
F
/16V
R
2
2
4
22
1/
10
W
ǂ
C
2
3
4
0.
22
uF
R3
3
7
NC
FB
2
0
8
60
0
O
H
M
VG
A
_
H
S
IN
5
uP
_A1
R2
4
4
10
0
1/
10
W
ǂ
R3
3
2
NC
Q20
5
NC
3
1
2
Q206 PMB S39 06
D
206
BAT
5
4
S
3
1 2
5V
VPP_
3
U
2
04
E
N
29
LV8
0
0B
T
-70T
C
P
37 13 46 27 29 30 31 32 33 34 35 36 38 39 40 41 42 43 44 45
1 2 3 4 5 6 7 8
17 18 19 20 21 22 23 24 25 48 26 28 11 12 14 47 16
15
VC
C
VPP
G
ND1
G
ND2
D1 D9 D2
D1
0
D3
D1
1
D4
D1
2
D5
D1
3
D6
D1
4
D7
D1
5
D8
D1
6
A1
5
A1
4
A1
3
A1
2
A1
1
A1
0
A9 A8 A1
7
A7 A6 A5 A4 A3 A2 A1 A0 A1
6
CE OE WE RP WP BY
T
E
A1
8
RY
/B
Y
5V
uP
_A2
VGA
_
H
S
R3
2
0
NC
D209
VP ORT 060 3100 KV05
1 2
3.
3V
_
S
B
A[
8.
.19]
VGA_
VS
2/
16
'0
7
jo
hn
ny
uP_
A
6
Q21
0
PM
BS
390
4
R
2
33
10
0
1/
10W
ǂ
DT
V
_
S
D
A
2
WR#
uP
_
A
D
6
De
te
c
t_
V
G
A
HS
Tx
D
C2
2
2
0.
1uF
D20 2 LL414 8
5
G
4/
16
'0
7
jo
hn
ny
3.
3V
_SB
R
338
NC
IS
P
_
S
W
uP
_
A
7
Q20
9
PM
BS39
0
4
R3
1
8
1K
1/
10
W
ǂ
R21 9 75 1% 1/ 10W
ǂ
uP
_A[
0
..
7
]
5
805
1
_
C
S2C
X
5
HD
M
I_
H
O
T
P
L
U
G
1
4
uP
_
A
3
R3
1
9
2
2
1/
10
W
ǂ
C2
0
7
0.
1u
F
3.
3V
_
S
B
80
51_
A
LE
5
uP
_
A
D
1
uP
_
A
D
3
D
e
te
c
t_V
GAVS
+
C2
2
1
1
0
uF
/1
6V
FB
2
1
3
30
0 OH
M
1 2
A12
A14
C2
1
9
0.
1u
F
R3
3
1
NC
TX
F
B
203
150
OH
M
1
2
R2
3
4
22
1
/1
0
W
ǂ
5V
5V
RX
A14
uP
_
A
4
R2
9
0
NC
6
VGA Input
A
UDI
O
_
S
W
1
2
HDM
I_
HO
T
P
L
U
G
2
4
A9
R2
4
6
N
C
R
2
9
7
4.
7K
1/
10
W
ǂ
5V
5V
_SD
A
2,
4,
5,
7
A13
D2
0
1
BAT
54C
3
1 2
5V
AV
-A
U
D
IO
_
S
W
2
5V_
S
D
A
2,
4,
5,
7
KEY
_
A
D
R2
8
7
NC
R2
0
3
4.
7K
1/
10
W
ǂ
R2
0
7
NC
FB
2
0
4
3
0
O
H
M
1
2
4
5V_
S
B
5V
TX
uP
_
A
D
4
FB
2
1
4
3
0
0
O
H
M
R2
7
9
2.
2K
1/
10
W
ǂ
R2
4
0
22
1
/1
0
W
ǂ
2
uP
_AD
5
A1
3
R2
0
4
NC
R2
1
5
4
.7
K
1/
10W
ǂ
R
2
31
2
2
1/
10
W
ǂ
R3
2
1
4.
7K
1/
10
W
ǂ
3.
3V_
S
B
VGA
_
SC
L
3V
_
R
X
E_P
A
GE
uP
_
A
D
5
A1
1
uP
_
A
D
0
A1
0
C2
1
5
NC
R
2
41
2
2
1/
10
W
ǂ
5V
5V_
S
B
PA
N
P
W
R
_O
N
5,
8
R
2
25
10
0
1/
10W
ǂ
R22 0 75 1% 1/ 10W
ǂ
HDM
IH
O
T
P
L
UG
2
R
2
3
9
10
0
1/
10W
ǂ
R
2
30
10
0
1/
10W
ǂ
G
3.
3V
_
S
B
uP_
A
7
R3
1
5
4.
7K
1
/1
0
W
ǂ
C2
0
2
NC
CN
2
0
4
NC
1 2 3
D2
1
9
NC
1
3
2
5
R3
1
4
4.
7K
1
/1
0
W
ǂ
R
305
10
0
1/
10W
ǂ
R24 8
100K 1/10W ǂ
C2
1
3
0.
1u
F
uP
_AD
0
R3
0
1
10
K
1
/1
0
W
ǂ
D21 4 NC 1 2
R2
6
5
NC
1/3
1'
07
S
Y
N
C
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1 2 3 4 5 6 7 8 9 10
11 12 13 14 15
16 17
1 2 3 4 5 6 7 8 9
10
11 12 13 14 15
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To mcu
5V
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T
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G
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1 2 3 4 5 7 6 8 9
10 11 12 13 16 14 15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
AVS
S
P70
/T
A
0I
N
P71
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A
1O
U
T
P72
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A
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6
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P01/ AD1
P02/ AD2
P03/ AD3
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5
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6
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7
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A
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A
19
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A
20
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P30/R D
P31/W R
P32/H WR
P40/ CS 0
P41/ CS 1
p42/ CS 2
P60/ SCK
P61/ SO/S DA
P62/SI /S CL
P6 3/IN T0
P50/ AN0
P51/ AN1
P52/ AN2
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2/
16
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7
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3.
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2
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7
De
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001
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F
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