Acer AL1706 AL1706 Service Guide - Page 31

No power &LED off YES Check primary rectifier voltage NO NO Check circuit if short Check IC802, C805, T801 YES Check pin3 of IC802 voltage about 1V YES Check F801, F802, P801, D801 NO Check R801, R805, R822, R823, R817 YES Check pin2 of IC802 voltage about 2V YES NO Check R803, R807, R824, R825 Check pin1 of IC802 voltage is 5.8V NO Check R812, R816, C818 YES END 2.2 DC output voltage is unstable 31