AOC L20W451T, Service Manual

Page: 48 / 92

20” LCD TV AOC L20W451T
48
A2
R414
10K
� 1/16W
5V-1_CPU
RD_EMU 3
R830 100
� 1/16W N C
R840
4.7K
� 1/16W
R437
100
� 1/16W
A0
R453
4.7K
� 1/16W
R281
4.7K
� 1/16W
A[8..14] 14
A16
R425 100
� 1/16W
U406
24LC64
8
5
6
4
7 3
2
1
VCC
SDA
SCL
GND
VCLK NC2
NC1
NC0
INT# 3
E_PAGE
A4
R800 100
� 1/16W
PANPWR_ON 12
A6
R816 100
� 1/16W
5V-1_CPU
A[8..18]
R431 0
� 1/16W
C334
100uF/16V
R836 100
� 1/16W
R419 4.7K
� 1/16W
MUTE 11
SVIDEO_SW 2
TP39
R415 100
� 1/16W
R418 22
� 1/16W
VGAVS 2
A3
A8
RST_7117
R808
4
.7
K
� 1/
16
W
R550 33
� 1/16W
R393 22
� 1/16W
A7
RN32
33
�
1 8
2 7
3 6
4 5 A17
TP32
A1
5V-1_CPU
VD3_3
A7
AD0
Q403
PMBS3906
WR# 14
A9
R447
1
0K
� 1/
16
W
C414
100pF
U403
EN29F040A-70JCP
12
11
10
9
8
7
27
25
4
5
29
3
6
26
28
23
2
30
31
16
1
32
24
22
21
19
13
14
15
17
18
20
A0
A1
A2
A3
A4
A5
A8
A11
A12
A7
A14
A15
A6
A9
A13
A10
A16
A17
A18
GND
VPP
VCC
OE#
CE#
Q7
Q5
Q0
Q1
Q2
Q3
Q4
Q6
Q402
NC
1
2
3
R284
2K
� 1/16W
R436
100
� 1/16W
When use W29C040,use R404 and
R400;R398 and R399 are
Option.
VGAHS 2
CE_REMOTE 8
RST_7117
R439
4.7K
� 1/16W
AUDIO_SW2 11
AD6
R810
4.7K
� 1/16W
AD4
5V-1_CPU
715T1539-1-2
5V-1_CPU
A[0..7]
VD3_3
SRS_CTL 11
R429
NC
A17
C339
100pF
RST# 8
CPU_RST
R382
NC
C340
10uF/16V
U410
ASM810SEUR-T
1
2
3
GND
RESET
VCC
TP33
A2
AD1
C336
15pF
TP34
A3
Detect_VGAHS 2
A12
R833
4.7K
� 1/16W
TP40
WR
R451 100
� 1/16W
RX_INT# 8
5V-1_CPU
BL_ADJ 2,3
R814
4.7K
� 1/16W
5V-1_CPU
A15
AD2
C355 1000pF
A1
A14
A12
R835 100
� 1/16W
A16
R449
10K
� 1/16W
R821
4.7K
� 1/16W
R551 33
� 1/16W
C347
10uF/16V
R423
4.7K
� 1/16W
5V-1_CPU
ALE_EMU 3
SC2_FN 2, 10
A2
SCLE
A9
RST_HDMI
R812
4.7K
� 1/16W
TP37
A6
R394 0
� 1/16W
R428 100
� 1/16W
RN30 33
�
1 8
2 7
3 6
4 5
SCDT 8
AD7
Option
TX
R440 100
� 1/16W
R827
4.7K
� 1/16W
R417 47K
� 1/16W
R829 100
� 1/16W
R435 100
� 1/16W
R860
4
.7
K
� 1/
16
W
C330 10uF/16V
When use W27E040,use R398 and
R399;R400 and R404 are
Option.
5V-1_CPU
TX
2
TP36
A5
R392 4.7K
� 1/16W
A0
C415
0.1uF
MCU_A[0..7] 3,14
X402
10MHz
RST_H 3
AD5
R831 100
� 1/16W N C
R422
4.7K
� 1/16W
R444
8.2K
� 1/16W
SCLE
AD6
R411
100K
� 1/16W
5V-1_CPU
INV_PRO 2
R433
100
� 1/16W
R817 100
� 1/16W
5V-1_CPU
DET_FB 2
R390 22
� 1/16W
RN27 33
�
1 8
2 7
3 6
4 5
R822
4.7K
� 1/16W
W_ENABLE 2
R282
4.7K
� 1/16W
ISP_SW 2
R861
4.7K
� 1/16W
R400 33
� 1/16W
RN31 33
�
1 8
2 7
3 6
4 5
5V-1_CPU
RST_H 3
PS
R399 NC
A15
R841
100
� 1/16W
R443 220
� 1/16W
5V-1_CPU
5V-1_CPU
E_PAGE
A6
A10
R454
4.7K
� 1/16W
FB57
150 OHM
SC1_FN 2, 10
A1
A4
AD1
R862
100
� 1/16W
R600 22
� 1/16W
1
MCU_M30620SPGP
AOC ( Top Vi ct or y) El ect r oni cs Co. , Lt d.
Custom
7
14
Tuesday , May 30, 2006
Title
Size Document Number Rev
Date: Sheet of
5V_SB
R832 100
� 1/16W
TP35
A4
A3
R448
1
0K
� 1/
16
W
W27E040 USED
5V-1_CPU
PWR_ON 6,12
R552
4.7K
� 1/16W
R398 NC
RN29 33
�
1 8
2 7
3 6
4 5
5V-1_CPU
A5
AD3
R811
4.7K
� 1/16W
R445 1K
� 1/16W
R412 22
� 1/16W
AD3
AD7
R842
100
� 1/16W
SDAE
AD4
R828
4.7K
� 1/16W
R283
4.7K
� 1/16W
INT_A 10
RX
2
A13
R430
NC
5V-1_CPU
SDAE
AD[0..7] 3,14
CS 3
AD0
RST_EX52
C346
0.1uF
TP38
A7
R807
4.7K
� 1/16W
U402
M30620SPGP
2
3
31
30
28
2 2
5
26
27
8 1
4
1
5
2
2
35
1 3 4 6 7 9 1
0
1
2
1
3
1
7
1
8
2
0
2
1
2
4
32
33
34
36
37
38
39
40
41
42
43
44
29
5 1
1
1
6
1
9
6
0
6
1
7
1
7
2
7
3
7
4
7
5
76
77
78
5
9
5
8
5
7
5
6
5
5
5
4
5
3
5
2
5
1
50
49
48
47
46
45
7
0
6
9
6
8
6
7
6
6
6
5
6
4
6
3
85
84
83
82
81
80
79
95
92
91
90
89
88
87
86
94
93
96
97
98
99
100
6
2
P
7_
5
/T
A
2
in
P6_5/CLK1
P6_6/RXD1
P7_0/SDA2
P
9_
3
/D
A
0
P
7_
3
/T
A
1
in
P7_2/TA1out
P7_1/SCL2
P
8_
7
/X
c
in
V
c
c1
P
8_
5
/N
IM
P
7_
6
/T
A
3
o
ut
P6_1/CLK0
P
9_
4
/D
A
1
P
9_
2
/T
B
2
in
P
9_
1
/T
B
1
in
BYT
E
CNV
ss
P
8_
6
/X
c
o
u
t
R
es
e
t
Vs
s
Xin P
8
_
3
/I
NT1
P
8
_
2
/I
NT0
P
8_
0
/T
A
4
o
ut
P
7_
7
/T
A
3
in
P
7_
4
/T
A
2
ou
t
P6_4/CTS1/RTS1
P6_3/SDA0
P6_2/SCL0
P6_0/CTS0/RTS0
P5_7/RDY
P5_6/ALE
P5_5/HOLD
P5_4/HLDA
P5_3/BCLK
P5_2/RD
P5_1/BHE
P5_0/WR
P6_7/TXD1
P
9_
0
/T
B
0
in
X
ou
t
P
8
_
4
/I
NT2
P
8_
1
/T
A
4
in
V
c
c2
P
3_
0
/A
8
P
1
_
7
/I
NT5
P
1
_
6
/I
NT4
P
1
_
5
/I
NT3
P
1_
4
P
1_
3
P1_2
P1_1
P1_0
P
3_
1
/A
9
P
3_
2
/A
10
P
3_
3
/A
11
P
3_
4
/A
12
P
3_
5
/A
13
P
3_
6
/A
14
P
3_
7
/A
15
P
4_
0
/A
16
P
4_
1
/A
17
P4_2/A18
P4_3/A19
P4_4/CS0
P4_5/CS1
P4_6/CS2
P4_7/CS3
P
2_
0
/A
0/
D
0
P
2_
1
/A
1/
D
1
P
2_
2
/A
2/
D
2
P
2_
3
/A
3/
D
3
P
2_
4
/A
4/
D
4
P
2_
5
/A
5/
D
5
P
2_
6
/A
6/
D
6
P
2_
7
/A
7/
D
7
P0_1/AN0_1
P0_2/AN0_2
P0_3/AN0_3
P0_4/AN0_4
P0_5/AN0_5
P0_6/AN0_6
P0_7/AN0_7
P10_0/AN0
P10_2/AN2
P10_3/AN3
P10_4/AN4
P10_5/AN5
P10_6/AN6
P10_7/AN7
P0_0/AN0_0
Av ss
P10_1/AN1
Vref
Av cc
P9_7/ADTRG
P9_6
P9_5
Vs
s
CS1 14 RD# 14
A18
A13
RX
R809
4
.7
K
� 1/
16
W
RN28
33
�
1 8
2 7
3 6
4 5
A10
R536
4.7K
� 1/16W
AD2
ZD401
HZ4A2
Q404
PMBS3904
1
2
3
VD3_3
SC1 2,8
Detect_VGAVS 2
RST_HDMI
A14
A11
KEY _AD 2
R427 100
� 1/16W
TP42
ALE
R432 0
� 1/16W
AD5
R397 33
� 1/16W
C338
100pF
R834
4.7K
� 1/16W
R801
4.7K
� 1/16W
SD1 2,8
A8
C345
0.01uF
3.3V_SB
RST_7117 10
A5
R426 100
� 1/16W
TP43
A0
5V-1_CPU
A18
5V-1_CPU
AUDIO_SW1 11
TP41
RD
C329 1000pF
R826
4.7K
� 1/16W
C335
15pF
A11
R450 100
� 1/16W
R452 4.7K
� 1/16W
W27E040 USED
W27E040
5V-1_CPU
WR_EMU 3
REMOTE 2
R389 0
� 1/16W