Acer V193W Service Manual page 31

Service Guide
4. Power Circuit No 14V/5V
Check rectified voltage-C905
Check voltage of IC901-8pin
Check MOS-Q900pin(G/D)
Check T901sub rectified out
NoPower
Check CN901
100-240V？
OK
OK
OK
Check T901(1-3)out-Vcc
OK
Check IC901-drive out
OK
OK
5V/12V,
Check flow chart
For the no power
NG
Check AC supply
NG
Check FuseF901/ BD901
L902/C901/C902
NG
check component R905/R920
NG
Check D901/R910/C911
NG
Check/replace IC901
NG
Check D910/R912/R915/Q901
Around component
Check rectified diode
NG
D920/D921
&fiter capacitor
Chech opto-couple
IC902&IC903
Check-- open load
31
Acer V193W