+3.3V
R470
1
0
K
1
/1
6
W
\
DEL R463,R472
C449
0.1uF
+3.3V
MCU_VCC
MCU_VCC
C443
NC
R455
NC
KEY_B
C439
0.001uF
C440
0.001uF
C441
0.001uF
C442
0.001uF
M512_XOUT
R4018
NC
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
U405
M24C02WMN6
KEY-B
RXD
KEY_B
MCU_RST
R499
100 1/16W
\
R495
100 1/16W
\
VGA5V
EEPROM_WP
BUS_POWER
DDC2_SCL
DDC2_SDA
R483
4
.7
K
1
/16
W
\
R4014 NC
R493
4.7K 1/16W
\
MCU_VCC
R4015
NC
DDC_SDA
C438
0.001uF
R4019 100 1/16W
\
KEY_C
POWER_KEY
KEY_C
R4013
4
.7
K
1
/1
6
W
\
CONNECT
R467
1
0
K
1
/1
6
W
\
LED_GREEN
3
1
2
D423
BAV70
R484
4
.7
K
1
/16
W
\
R477
4
.7
K
1
/16
W
\
R4007
6.8K 1/16W
\
R487
4
.7
K
1
/16
W
\
R486
4
.7
K
1
/16
W
\
R485
4
.7
K
1
/16
W
\
X402
24MHz
C446
10pF
C447
10pF
Q407
PMBS3904
C452
0.1uF
STDBY
RTD_SCSB
MUTE
RTD_SCLK
DDC_WP
DDC_WP
R4001 150 1/16W
\
EDID_WP
ENTER_KEY
BRIGHTNESS
LEFT_KEY
RIGHT_KEY
R488
4
.7
K
1
/16
W
\
R479
4
.7
K
1
/16
W
\
R480
4
.7
K
1
/16
W
\
R481
4
.7
K
1
/16
W
\
IICSCL
IICSDA
BACKLIGHT
PANEL_PW
POWER_KEY
LED_GREEN
LED_ORANGE
LEFT_KEY
RIGHT_KEY
ENTER_KEY
R459 100 1/16W
\
R457
0 1/16W
\
R461 100 1/16W
\
KEY_A
AUTO_KEY
R456
0 1/16W
\
R462
100 1/16W
\
R458
100 1/16W
\
R454
NC
R460
100 1/16W
\
C437
0.001uF
R491
470 1/16W
\
R492
4.7K 1/16W
\
MCU_VCC
DDC_SCL
DDC_SDA
R464
4
.7
K
1
/1
6
W
\
R465
4
.7
K
1
/1
6
W
\
R468
1
0
K
1
/1
6
W
\
R469
1
0
K
1
/1
6
W
\
R471
1
0
K
1
/1
6
W
\
DEL
R490,C444,R474,R475,R496,R494
C445
NC
OUT_L+
OUT_L-
OUT_R+
OUT_R-
IICSDA
IICSCL
R4003
100 1/16W
\
R4002
100 1/16W
\
NC
1
NC
2
NC
3
VSS
4
SDA
5
SCL
6
WC
7
VCC
8
U404
M24C16
MCU_VCC
MCU_VCC
R4008
4.7K 1/16W
\
EEPROM_WP
C448
0.1uF
R478
4
.7
K
1
/16
W
\
R442 100 1/16W
\
C
E
B
Q404
PMBS3906
C
E
B
Q405
PMBS3906
DVI_DET
R489
10K 1/16W
\
2
4
6
8
10
12
14
16
1
3
5
7
9
11
13
15
CN404
MCU_VCC
R498
10K 1/16W
\
R473
470 1/16W
\
R497
10K 1/16W
\
VOLUME
SDIO0
3
SDIO1
3
SDIO2
3
RTD_SD3/SDI 3
KEY-B
P5.0/DA0
2
P5.1/DA1
3
P5.2/DA2
4
P5.3/DA3
5
P5.4/DA4
6
P5.5/DA5
7
HSCL2/P5.6
8
HSDA2/P5.7
9
RST
10
HDA1/TX/P3.1
13
XTAL2
20
XTAL1
21
VSS
22
VCC
44
P1.0
43
P1.1
42
P1.2
41
P1.3
40
P1.4
39
P1.5
38
P1.6
37
P1.7
36
NC
35
VSYNC
32
NC
33
P6.0/AD0
24
P6.1/AD1
25
P6.2/AD2
26
P6.3/AD3
27
P6.4
28
P6.5
29
P6.6/CLK0
30
P6.7
31
HCL1/RX/P3.0
11
P3.2/INT0
14
P3.3/INT1
15
P3.4/T0
16
P3.5/T1
17
P7.6/CLKO
18
P7.7
19
NC
12
MTV512
U402
+5V
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
U406
M24C02WMN6
OUT_L+
OUT_R-
OUT_R+
OUT_L-
R466
4
.7
K
1
/1
6
W
\
R482
4
.7
K
1
/16
W
\
C451
0.001uF
TXD
R4005
100 1/16W
\
R4004
100 1/16W
\
EDID_WP
EDID_WP
R4017
10K 1/16W
\
Q406
NC
R4009 NC
R4016
22K 1/16W
\
R4006
NC
AUTO_KEY
AUTO_KEY
KEY_A
MCU_VCC
R4010
4.7K 1/16W
\
R4022
4
.7
K
1
/16
W
\
R4023
4
.7
K
1
/16
W
\
R476
4
.7
K
1
/1
6
W
\
3
1
2
D424
BAV70
+5V
R4011
4.7K 1/16W
\
C450
0.1uF
DDC_SCL
R4026
100 1/16W
\
R4025
4
.7
K
1
/16
W
\
LED_ORANGE
R4024
4
.7
K
1
/16
W
\
R4027
100 1/16W
\
R4028
100 1/16W
\
R4029
100 1/16W
\
ViewSonic Corporation
Confidential - Do Not Copy
VA712-2_ VA712b-2
62
Model
Title
Date
Rev:
ViewSonic Corporation
MCU
Содержание VA712-2
Страница 11: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 8 3 Front Panel Function Control Description...
Страница 28: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 25...
Страница 43: ...Sep2 Inpute the S N and execute Enter ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 40...
Страница 44: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 41...
Страница 45: ...Sep3 Key the Enter and write the data ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 42...
Страница 50: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 47 Picture 13 Picture 14 Picture 15...
Страница 52: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 49 6 Troubleshooting Flow Chart...
Страница 59: ...8 Exploded Diagram and Exploded Parts List ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 56...
Страница 63: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 60 9 Block Diagram...
Страница 74: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 71 11 5 POWER PCB TOP VIEW...
Страница 75: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 72 11 6 POWER PCB BUTTON VIEW...
Страница 76: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 73 11 7 AUDIO PCB TOP VIEW BUTTON VIEW...