ViewSonic VA702B Service Manual - Page 27

17 NC 18 VDDC 19 GND 20 GND 21 VDDP 22 NC 23 NC 24 NC 25 NC 26 NC 27 NC 28 NC 29 NC 30 AD0 31 AD3 32 HWRESET 33 XIN 34 XOUT 35 AVDD_MPLL 36 GND 37 HSYNC0 38 VSYNC0 39 GND 40 NC 41 NC 42 GND 43 NC 44 NC 45 VDD_ADC 46 NC 47 NC 48 GND 49 NC 50 NC 51 VDD_ADC 52 REXT 53 AVDD PLL 54 GND 55 AVDD ADC 56 GND 57 BINOM 58 BINO 59 GINOM 60 GINO 61 SOGIN0 62 RINOM 63 RINO 64 GND 65 AVDD_ADC 66 REFP 67 REFM 68 GND 69 ALE/CS 70 WRZ/SDA 71 RDZ/SCL 72 INT 73 PWM0 74 PWM1 75 NC 76 NC ViewSonic Corporation Not connected I Digital Core Power Ground Ground O Digital Output Power Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected I/O DDR direct bus AD0; 4mA driving strength I/O DDR direct bus AD3; 4mA driving strength I Hardware reset; active high I Crystal Oscillator Input O Crystal Oscillator Output MPLL Power Ground I Analog HSYNC input I Analog VSYNC input Ground Not connected Not connected Ground Not connected Not connected I ADC Power Not connected Not connected Ground Not connected Not connected I ADC Power External resistor 390 ohm to AVDD ADC I PLL Power Ground I ADC Power Ground I Reference ground for analog blue input I Analog blue input I Reference ground for analog green input I Analog green input I Sync-on-green input I Reference ground for analog red input I Analog red input Ground I ADC Power Internal ADC top de-coupling pin Internal ADC bottom de-coupling pin Ground I DDR direct bus ALE; active high I/O DDR direct bus WRZ; active low I DDR direct bus RDZ; active low O CPU interrupt; 4mA driving strength O PWM0; 4mA driving strength O PWM1; 4mA driving strength Not connected Not connected Confidential - Do Not Copy 24 VA702-1_VA702b-1