Acer AL1706 AL1706 Service Guide - Page 37

3.3 Bad Screen Bad Screen OK LVDS Cable Reinsert NG OK Change LVDS Cable NG Workmanship LVDS Cable NG Check Crystal: pin20,21 of U105 and pin33,34 of U104 NG (1).CheckX101,C154, C155 (2).CheckX102,C126, C168 OK Check the communication of U104 andU105 NG Check ALE/RDZ/ WRZ/AD0/AD1/ AD2/AD3/ HWRESET OK Check the pins of U104 and U105 3.4 If brightness uniform, change Inverter or Panel. 3.5 If you find the vertical line on the screen, please change panel. 37