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Model
Title
Date
Rev:
ViewSonic Corporation
MCU
60
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VA912/b-3
SDA1
SCL1
LED
5V_ON/OFF
LED
5V_ON/OFF
DDC_CLK
DDC_DAT
SDA1
SCL1
CSZ
SCL
SDA
DDC_CLK
DDC_DAT
INT
HWRESET
AUDIO_ON
PANEL_ON/OFF
OPTION2
OPTION1
DCDC_ON/OFF
AD1
AD2
AD0
AD3
MENU
KEY_DOWN
KEY_UP
SOURCE_SELECT
AUTO_ADJ
PWR_SW
LED_GR
LED_OR
VCM_PWM
V5A
V5A
VGA_5V
INV_ON/OFF
XAO
VCPU
V5A
V5A
V5A
V5A
V5A
V5A
VCPU
V5A
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
GND_POWER
VCPU
GND_POWER
GND_POWER
Avoid entering the
self-test mode of the
MCU.
MTV312M
03/08/04
10/20
(PANEL POWER CONTROL)
L8
L8
DA2/P5.2
1
DA1/P5.1
2
DA0/P5.0
3
VDD3
4
NC
5
NC
6
RST
7
VDD
8
AD3/P6.3
9
VSS
10
X2
11
X1
12
ISDA/P3.4/T0
13
ISCL/P3.5/T1
14
STOUT/P4.2
15
AD2/P6.2/HLFHI
16
P1.0
17
P1.1
18
P3.2/INT0
19
P1.2
20
P1.3
21
P1.4
22
P1.5
23
P1.6
24
P1.7
25
AD1/P6.1
26
AD0/P6.0
27
HSDA/P3.1/TX
28
HSCL/P3.0/RX
29
DA10/P6.4
30
DA11/P6.5
31
DA13/P6.7
33
DA6/P5.6
34
DA7/HCLAMP
35
VBLANK/P4.0
36
HBLANK/P4.1
37
HALFV/DA9
38
HLFHO/DA8
39
DA5/P5.5
40
DA4/P5.4
41
DA3/P5.3
42
HSYNC
43
VSYNC
44
DA12/P6.6
32
U3
U3
R47
R47
1
2
ZDP7
ZDP7
C49
C49
C48
C48
C171
C171
R43
R43
R35
R35
3
2
1
Q3
Q3
R218
R218
R49
R49
C43
C43
R48
R48
C40
C40
1
2
3
Q6
Q6
1
2
D18
D18
VCC
8
A1
2
WP
7
SCL
6
SDA
5
GND
4
A2
3
A0
1
U4
U4
C50
C50
R25
R25
R50
R50
Y2
Y2
1
2
3
4
CN8
CN8
C44
C44
1
2
3
Q7
Q7
C42
C42
3
2
1
Q1
Q1
R219
R219
R52
R52
C45
C45
R23
R23
R51
R51
R30
R30
C46
C46
R26
R26
R24
R24
C47
C47
R27
R27
R45
R45
R42
R42
R32
R32
R29
R29
R22
R22
R28
R28
1
2
3
Q2
Q2
R46
R46
R44
R44
1
2
D19
D19
R31
R31
R37
R37
R36
R36
C172
C172
R33
R33
R34
R34
R140
R140
C41
C41
R193
R193
R139
R139