Service manual

ViewSonic Corporation Confidential - Do Not Copy VA702-1_VA702b-1
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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