ViewSonic VP150M Service Manual - Page 31

Service Manual VP150m THEORY OF CIRCUIT OPERATION ViewSonic September 2000 - Version 1.0 Symbol HSYNC_O VSYNC_O DCLK_OUT DE_OUT GND VDD R_OUT0_E R_OUT1_E R_OUT2_E R_OUT3_E HSYNC_X VSYNC_X GND R_OUT4_E VDD VDD R_OUT5_E GND R_OUT6_E R_OUT7_E GND R_OUT0_O R_OUT1_0 R_OUT2_O R_OUT3_O VDD R_OUT4_O R_OUT5_O R_OUT6_O R_OUT7_O GND G_OUT0_E G_OUT1_E G_OUT2_E G_OUT3_E Pin Number 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 I/O Description 0 Output HSYNC (the polarity is programmable through CPU, default is active low) O Output VSYNC (the polarity is programmable through CPU, default is active low) O Output Clock to Control Panel (the polarity is Programmable through CPU) O Output Display Enable for Panel (the polarity is Programmable through CPU, default is active HIGH) Ground Power Supply O Output Color Red Even Pixel (left pixel) O Output Color Red Even Pixel (left pixel) O Output Color Red Even Pixel (left pixel) O Output Color Red Even Pixel (left pixel) O Default HSYNC generated by ASIC (active LOW) 0 Default VSYNC generated by ASIC (active LOW) Ground O Output Color Red Even Pixel (left pixel) Power Supply Power Supply O Output Color Red Even Pixel (left pixel) Ground O Output Color Red Even Pixel (left pixel) O Output Color Red Even Pixel (left pixel) Ground O Output Color Red Odd Pixel (right pixel) O Output Color Red Odd Pixel (right pixel) O Output Color Red Odd Pixel (right pixel) O Output Color Red Odd Pixel (right pixel) Power Supply O Output Color Red Odd Pixel (right pixel) O Output Color Red Odd Pixel (right pixel) O Output Color Red Odd Pixel (right pixel) 0 Output Color Red Odd Pixel (right pixel) Ground O Output Color Green Even Pixel (left pixel) O Output Color Green Even Pixel (left pixel) O Output Color Green Even Pixel (left pixel) O Output Color Green Even Pixel (left pixel) Page 30 Confidential - Do Not Copy