Acer AL512 AL512 Monitor Service Guide - Page 9

5. BLOCK DIAGRAM AC 110~220V INPUT SWITCHING POWER SUPPLY OSC. 12MHZ X101 12V for INVERTER 5V for system I103,I104,I110 5V to 3.3V 3.3V to 2.5V DC_EN DC-DC for PANEL POWER I108 AIC1341 Q105,Q106,Q107 Q108,Q114,Q115 3.3V 2.5V VCOM 3.6V VDDG 18V VEEG -6V VDDA 9.2V VDDD 3.3V R G B Hsync Vsync BUF I101 74LCV14 PA-HSYNC PA-VSYNC MRT MASCOT VZ I001 LCD CONTROLLER ADC+ SCALAR + T-CON SDA/SCL FROM D-SUB 15 PIN I102 24LC21 EEPROM DDC I100 24LC16B EEPROM EDID I2C BUS KEYPAD OSC. 12MHZ X100 I2C BUS I105 8051PLCC 48 Bits LCD FLAT PANEL STH1,LP,INV1,INV2 POL,STV1,CPV CPH1 BLT_ON BRIGHTNESS TO BACKLIGHT High Volt INVERTER OPTION VOLUMN CONTROL AUDIO IN AUDIO AMP. I601 TDA7053A/TDA7057 SPEAKER 15 inch LCD MONITOR BLOCK DIAGRAM 9/20/2002 -8-