Acer S2W 3300U Service Manual - Page 39

6.4 When MicraScan show 0XFFFF0024 : Line Motor/Home Sensor error Line Motor/Home Sensor U5 --- IC 2003 U3 ---ASIC (AP7107U) 6.5 When MicraScan show 0XFFFF0026: DC Offset error U6 --- IC A3568 6.6 When MicraScan show 0XFFFF0027 : Lamp/CCD GAIN error U6 --- IC A3568 6.7 Scan Quality not Good: Mechanism --Window Glass dust White/Black strip dust Old Lamp CCD Mechanism U6 --- IC ASP A3568 6.8 Power Supply 6.8.1 No Function after Power On: Q1 --- PWR 78L12 Q6 --- PWR 78L05 6.8.1 When MicraScan show 0XFFFF0027 or Lamp Cannot Light On: Flat Cable \ Flat Cable Connector J2 Lamp Inverter Board