Acer AL1511 Service Manual page 32

Power Board
No Power
Check AC line volt 110V or 220V
Check the voltage of C905(+)
Check start voltage for the pin3 of IC901
Check the auxiliary voltage is between 10V-16V
Check D910, D912
OK NG
NG
OK
NG
OK
NG
OK
Check AC line
Check F901, bridge rectified circuit
Check R906, R907, IC901
1) Check IC902, IC903
2) 2) Check Q901, Q902, ZD901 circuit
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