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ViewSonic Corporation
Confidential - Do Not Copy
VA702-2_VA721-3_VA721b-3
57
R131
0
U106
24C16
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
KEY_SELECT/AUTO
TO KEY PAD
R145
220
RP102
10K
8
1
7
2
6
3
5
4
C159
1000P/50V
Q104
PMBT3906
R152
100
C156
1000P/50V
C160
1000P/50V
INT
R156
10K
VCPU
KEY_POWER
R142
220
Q105
PMBT3906
AD3
VCPU
R148
1K
R133
10K
RP104
10K
8
1
7
2
6
3
5
4
VCPU
AD1
CN106
2x4PIN
8
1
3
5
2
7
4
6
C154
12p/50V
C148
10u/16V
LED_GREEN
LED_ORANGE
R147
1K
DET_VGA
AD2
RP103
10K
8
1
7
2
6
3
5
4
R137
10K
R138
10K
KEY_DOWN
ISP for Standard
8051
C149
0.1/50V
VCPU
LED_ORANGE
R144
4K7
U105
Winbond W78E65P
1
2
3
4
5
6
7
20
21
22
24
25
26
27
28
29
30
32
35
36
37
38
39
40
11
13
14
16
17
41
42
43
44
10
31
15
18
12
19
8
9
23
33
34
P4.2
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
X2
X1
VSS
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
PSEN
EA
P0.7
P0.6
P0.5
P0.4
P0.3
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.4/T0
P3.5/T1
P0.2
P0.1
P0.0
VDD
RST
P2.7
P3.3/INT1
P3.6/WR
P4.3/INT2
P3.7
P1.6/PWM3
P1.7/PWM4
P4.0
ALE
P4.1
R146
1K
CCFL_ENABLE
R134
10K
C155
12p/50V
R140
100
SCL/RDZ
R149
1K
AD0
DDC_SDA_VGA
PANEL_ENABLE
KEY_MENU/EXIT
R141
100
R139
10K
LED_GREEN
D102
SN4148
RP101
10K
8
1
7
2
6
3
5
4
C153
NC/10u/16V
VCPU
KEY_UP
R143
4K7
R150
1K
HWRESET
C150
10u/16V
FB108
BEAD60OHM
SDA/WRZ
VCPU
DDC_SCL_VGA
R158
51
R155
10K
R132
10K
VCPU
R159
220
VCC5V
C158
1000P/50V
R153
100
C157
1000P/50V
C151
0.1/50V
CSZ/ALE
X101
22.1184MHz
Model
Title
Date
Rev:
ViewSonic Corporation
MCU
Содержание VA702-2
Страница 51: ...ViewSonic Corporation Confidential Do Not Copy 48 Packing for Shipping VA702 2_VA721 3_VA721b 3 ...
Страница 63: ...ViewSonic Corporation Confidential Do Not Copy VA702 2_VA721 3_VA721b 3 60 Main board bottom Layout ...
Страница 64: ...ViewSonic Corporation Confidential Do Not Copy VA702 2_VA721 3_VA721b 3 61 POWER board ...
Страница 65: ...ViewSonic Corporation Confidential Do Not Copy VA702 2_VA721 3_VA721b 3 62 ...