Acer X221 Service Guide - Page 15

5 4 Monitor Block Diagram PC5V D C PC5V A3 PC5V 3.INPUT A2 RIN GNDR GIN GNDG BIN GNDB SOG VSYNC HSYNC R+ RG+ GB+ BCLK+ CLK- DDCA_SDA DDCA_SCL DET_VGA DDCD_SDA DDCD_SCL DET_DVI HPD_CTRL +5V B VCC3.3 VCC1.8 VCC12 PC5V VCTRL VCC12 on_BACKLIGHT +5V Adj_BACKLIGHT VCC3.3 VCC1.8 2.POWER A 5 4 3 2 1 A4 RIN GNDR GIN GNDG BIN GNDB SOG VSYNC HSYNC R+ RG+ GB+ BCLK+ CLKDDCA_SDA DDCA_SCL DET_VGA DDCD_SDA DDCD_SCL DET_DVI HPD_CTRL VCTRL on_BACKLIGHT Adj_BACKLIGHT 4.SCALER LVA0P LVA0M LVA1P LVA1M LVA2P LVA2M LVACKP LVACKM LVA3P LVA3M LVB0P LVB0M LVB1P LVB1M LVB2P LBA2M LVBCKP LVBCKM LVB3P LVB3M on_PANEL +5V VCC1.8 VCC3.3 A5 LVA0P LVA0M LVA1P LVA1M LVA2P LVA2M LVACKP LVACKM LVA3P LVA3M LVB0P LVB0M LVB1P LVB1M LVB2P LVB2M LVBCKP LVBCKM LVB3P LVB3M +5V VCC1.8 on_PANEL 5.PANEL VCC3.3 A6 +5V VCC12 +5V D VCC12 C VCC3.3 VCC12 VOLUME VOLUME VCC3.3 STBY STBY VCC12 B MUTE MUTE 6.AUDIO T Title Size A T Document Number TOP A Rev A1A Date: 3 2 Sheet 1 of 6 1