Pwpc Board - Sony HS75 Service Manual

6.2 PWPC board

No Power
No power
Check AC line volt 110V or 220V
OK
Check the voltage of C905(+)
OK
Check start voltage for the L pin of IC901
OK
Check the auxiliary voltage is normal?
OK
Check D902, D904, IC902, IC903
NG
NG
NG
NG
41
Check AC line
Check F901, bridge rectified circuit
Check R904, R908, R911
1) Check IC901,T901
2) Check D905, IC902
HS75 Sony