Acer A231H Service Guide - Page 73

Acer 2ēDC output voltage is unstable Unstable power Acer -LCD-A231H Check sampling Circuit Check the R pin voltage of IC803 Check R822,R825,R826, Check the C pin voltage of IC803 R822,R825,R826, Change Check pin6 of IC802 voltage Check R832 Check D803,C807,C810 Change Check pin3 of IC802 voltage Check R805,R814,R815 END