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8. Schematic Diagram
8.1 Main Board
CN103A
JACK
2
VIDEO
1
3
AGND
4
5
6
AGND
C204
22p
AGND
SVIDEO_Y
SVIDEO_C
4
3
2
1
C219
22p
CN104
AGND
S-VIDEO
AGND
VD_Vout
L204
150
TUNER_CVBS
C230
22p
FB
R216
4.7k£[ 1/16W
V_B
R217
4.7k£[ 1/16W
V_G
R218
4.7k£[ 1/16W
V_R
ADD FOR V-CHIP
L201
C201
150
0.68u
CVBS1
C202
1u
C203
1u
C205
C206
R201
470p
470p
75
L202
150
C208
0.68u
Y
L203
+5VS
150
C213
1n
AGND
C
C220
R203
R204
C221
22p
75
75
10u/16V
C222
0.1u
AGND
C227
0.68u
CVBS2
R205
75
+
C231
VIN1ÓëVIN4½»»»
0.1u
C234
C235
C233
C236
C237
£¨Jun-17-05£©
0.1u
0.1u
10u/16V
0.1u
10n
AGND
C248
C249
C250
R215
R214
R213
C240
C241
1K
1K
1K
C242
AGND
AGND
AUDIO_O_L
AUDIO_O_R
C207
10p
R202
X201
1M
20.25MHz
C210
10p
C211
C212
0.1u
10n
5V
C217
C218
+
10n
0.1u
C216
47u/16V
65
GNDF
66
VRT
C223
67
I2CSEL
0.1u
68
ISGND
C224
69
VSUPF
10n
70
VOUT
71
U201
CIN
72
VIN1
73
VIN2
VP3230D
74
VIN3
75
VIN4
76
VSUPAI
77
GNDAI
78
VREF
79
FB1IN
80
AISGND
AGND
0.22u
0.22u
0.22u
0.22u
DGND
0.22u
0.22u
R209
+3.3VS
NC
C243
0.1u
R210
C244
0
NC
DGND
AGND
DGND
C245
1.5n
C246
390p
C247
0.22u
53
+3.3VS
+
C209
47u/16V
DGND
C215
C214
10n
0.1u
CP201
33p
RP201
22x
40
1
8
Y0
39
2
7
Y1
38
3
6
Y2
37
4
5
Y3
36
C226
RP202
VSUPY
35
0.1u
22x
GNDY
34
C225
1
8
Y4
33
10n
2
7
Y5
32
3
6
Y6
31
4
5
Y7
30
GNDLLC
29
C228
VSUPLLC
28
0.1u
C229
R206
NC
LLC1
27
10n
R207
22
LLC2
26
VSUPPA
25
GNDPA
DGND
C238
C239
0.1u
10n
DGND
R208
100
VD_RST
+3.3VS
R211
75
IICSDA
IICSCL
R212
75
Title
Size
Document Number
A3
Date:
Monday, September 12, 2005
AOC A20S431
VD_HS
DGND
CP202
33p
VD[0..7]
VD0
VD1
VD2
VD3
VD4
VD5
VD6
VD7
D_CLK
EMI
C232
22p
DGND
MFM
Rev
0.3
DECODER
Sheet
1
of
8
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