Troubleshooting; Standby Power Ok, No Power On Signal - Philips 22PFL5557/V7 Service Manual

7. Troubleshooting

NO
Replace U104
Update Software
NO
Replace U201
Replace Q808
Standby power OK, no
Power ON signal
Check U104
3.3V OK?
NO
NO
Check Q808 C(low voltage?)
27
Check U201
Check and repair the
Peripheral components