Acer AL1706

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