Philips PET721C/D/S Service Manual page 12

5.0 TROUBLESHOOTING
SYMPTOM: ADAPTOR CANNOT POWER ON
Adaptor can not Power ON
Start
Check Adaptor OK? NO Change adaptor SET OK?
Yes
Yes
No
Check the Power-ON Return set to
YES Replace Main Board
button and cable OK? Customer
NO
Replace Button or
OK
Cable