![background image](http://html1.mh-extra.com/html/viewsonic/va702b-17-lcd-monitor/va702b-17-lcd-monitor_service-manual_1020942014.webp)
17 NC
Not
connected
18 VDDC
I
Digital Core Power
19 GND
Ground
20 GND
Ground
21 VDDP
O
Digital Output Power
22 NC
Not
connected
23 NC
Not
connected
24 NC
Not
connected
25 NC
Not
connected
26 NC
Not
connected
27 NC
Not
connected
28 NC
Not
connected
29 NC
Not
connected
30
AD0
I/O
DDR direct bus AD0; 4mA driving strength
31
AD3
I/O
DDR direct bus AD3; 4mA driving strength
32 HWRESET
I
Hardware
reset; active high
33 XIN
I
Crystal Oscillator Input
34 XOUT
O
Crystal Oscillator Output
35 AVDD_MPLL
MPLL Power
36 GND
Ground
37 HSYNC0
I
Analog HSYNC input
38 VSYNC0
I
Analog VSYNC input
39 GND
Ground
40 NC
Not
connected
41 NC
Not
connected
42 GND
Ground
43 NC
Not
connected
44 NC
Not
connected
45 VDD_ADC
I
ADC Power
46 NC
Not
connected
47 NC
Not
connected
48 GND
Ground
49 NC
Not
connected
50 NC
Not
connected
51 VDD_ADC
I
ADC Power
52
REXT
External resistor 390 ohm to AVDD ADC
53 AVDD PLL
I
PLL
Power
54 GND
Ground
55 AVDD ADC
I
ADC
Power
56 GND
Ground
57 BINOM
I
Reference ground for analog blue input
58 BINO
I
Analog blue input
59 GINOM
I
Reference ground for analog green input
60 GINO
I
Analog green input
61 SOGIN0
I
Sync-on-green input
62 RINOM
I
Reference ground for analog red input
63 RINO
I
Analog red input
64 GND
Ground
65 AVDD_ADC
I
ADC Power
66 REFP
Internal ADC top de-coupling pin
67
REFM
Internal ADC bottom de-coupling pin
68 GND
Ground
69
ALE/CS
I
DDR direct bus ALE; active high
70
WRZ/SDA
I/O
DDR direct bus WRZ; active low
71
RDZ/SCL
I
DDR direct bus RDZ; active low
72
INT
O
CPU interrupt; 4mA driving strength
73 PWM0
O
PWM0; 4mA driving strength
74 PWM1
O
PWM1; 4mA driving strength
75 NC
Not
connected
76 NC
Not
connected
11
D
o
Not
Copy
VA702/b
ViewSonic
Corporation
Co
nfidential
Содержание VA702B - 17" LCD Monitor
Страница 32: ...6 Black Screen and backlight turn on 29 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 51: ...9 PCB Layout Main board Top layout 48 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 52: ...Main board bottom Layout 49 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 53: ...POWER board 50 Do Not Copy VA702 b ViewSonic Corporation Confidential ...
Страница 54: ...51 Do Not Copy VA702 b ViewSonic Corporation Confidential ...