We may have found other answers which could help you.
Click here for Black Screen SoundPhilips model28pw6006/05?
How do I get my TV to start up normally wihout being forced to retune?
Why it goes on and off many times?
Why when I power up, the green L.E.D. flashes on then off. ?
philips 42pdl7906?
tv(philips 47 pfl 7606)?