Model
Title
Date
Rev:
ViewSonic Corporation
MCU & BUTTON
PARAMETER
EEPROM
B
C
TO BUTTON BOARD
Junction from
A change to B
R101,R103 net swap
less R94 to CN6 pin 11
E
90° E&T
4607-11Pin
Reset circuit
2004/12/28
2004/12/28
RxD
KEY1
LED_G
TxD
MENU
DOWN
PWR_SEL
LED_R
LEFT
PWR
RIGHT
RIGHT
LED_G
LED_R
MENU
SEL
KEY2
UP
IICSDA
KEY2
KEY1
DOWN
KEY2
PWR
LEFT
KEY3
UP
KEY3
SEL
KEY1
KEY3
IICSCL
WP_EE
WP_EE
RESET
DDC_SDA
DDC_SCL
AVS
STBY
MUTE
SDIO1
SDIO2
SDIO3
RTD_SCLK
5DVCC
3AVCC1
RTD_SCSB
VRMT
PANEL_PW12
3DVCC
VCPU
VCPU
VCPU
VCPU
VCC12
VCPU
VCPU
3DVCC
3DVCC
VCPU
VCPU
3AVCC1
VCPU
VCPU
R78
10K/6
R179
2K/6
R125
100/6
R108
4.7K/6
R109
4.7K/6
R98
1K/6
R38
2K/6
R92
100/6
R99
1K/6
C7
7
0.
1U
/6
R8
8
33K/
6
R8
5
33K/
6
Q13
2N3906
2
1
3
R113
NC
R83
100/6
R82
4.7K/6
CN6
4501-10-10P-R
1
2
3
4
5
6
7
8
9
10
+
C84
22uF/16V
R39
4.7K/6
R8
7
33K/
6
R80
2K/6
R40
4.7K/6
R115
4.7K/6
R81
2K/6
R100
1K/6
R8
9
33K/
6
R165
NC/100K/6
U8
24LC16
1
2
3
4
5
6
7
8
A0
A1
A2
VSS
SI
SCK
WP
VCC
Q12
2N3906
2
1
3
R101
1K/6
R9
0
33K/
6
C
103
N
C
/1U
/16V
R102
220/6
R9
1
33K/
6
D32
NC/ 1N4148
R114
4.7K/6
R103
220/6
R110
4.7K/6
JP3
1
3
2
4
56
R106
NC/82K/6
C7
6
0.
1U
/6
R112
NC
C85
0.1u/6
C75
0.1U/6
1
2
C8
1
0.
1U
/6
Y2
11.0592MHz
C8
2
0.
1U
/6
R96
1K/6
R111
4.7K/6
D33
NC/DAN202U
3
2
1
R95
1K/6
R142
NC
R180
NC
R170
4.7K/6
R41
6.8K/6
C88
10pF/6
R171
4.7K/6
R147
4.7K/6
C8
6
N
C
/1U
/16V
C87
10pF/6
R172
4.7K/6
R164
22
R163
4.7K/6
JP1
HEADER 4
1
2
3
4
I1
MTV312M64
12
11
7
19
17
18
20
21
22
23
24
25
3
2
1
42
41
40
33
32
31
30
9
26
27
28
29
8
10
14
13
4
38
39
5
6
16
15
34
35
36
37
43
44
X1
X2
RESET
INT0/P3.2
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P5.0
P5.1
P5.2
P5.3
P5.4
P5.5
P6.7
P6.6
P6.5
P6.4
P6.3
P6.1/AD1
P6.0/AD0
P3.1/TXD
P3.0/RXD
VC
C
VSS
ISCL/P3.5/T1
ISDA/P3.4/T0
V
DD3
DA9/HALFV
DA8/HLFHO
NC
NC
P6.2
P4.2
P5.6
DA7
P4.0
P4.1
H
SYN
C
VSYN
C
R8
4
33K/
6
C7
8
0.
1U
/6
R166
0/6
C7
9
0.
1U
/6
R181
22
C8
0
0.
1U
/6
Q20
NC/2N3906
2
1
3
R93
4.7K/6
R97
1K/6
R79
10K/6
R124
100/6
66
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VA912-4_VA912b-4
Содержание VA912-4
Страница 16: ...3 Front Panel Function Control Description 13 ViewSonic Corporation Confidential Do Not Copy VA912 4_VA912b 4...
Страница 71: ...11 PCB Layout Diagrams MB TOP 68 ViewSonic Corporation Confidential Do Not Copy VA912 4_VA912b 4...
Страница 72: ...69 ViewSonic Corporation Confidential Do Not Copy VA912 4_VA912b 4...
Страница 73: ...70 ViewSonic Corporation Confidential Do Not Copy VA912 4_VA912b 4...
Страница 74: ...71 ViewSonic Corporation Confidential Do Not Copy VA912 4_VA912b 4...