I have Philips 42PFL7662D/05 television. when I power down I loose all digital channels.I have to reprogram again. why. regards Brian

Just been on Philips Forum and there is a possible very simple solution. Press and hold the MENU button ON THE TV for about 20 secs. This should factory reset TV and allow storage/retrieval of channels to the '8k' store. See this page for more detail:http://www.supportforum.philips.com/en/showthread.php?1366-26pfl5522d-05.
Now I have to ring my Dad who has exactly this problem!

I had the same problem a little while after the digital change over, channels were all lost struggled to get the set up menu up but when i did i retune the channels as soon as you turn the tele off there lost again. but it works if you leave the tele on standby. 2 people have told me it's the battery in the tele itself.

Hi.

The problem is the inverter, the psu, or the main board. Repair is done checking power to the inverter.

Please let me know if you need more info on the problem.

Regards.

Ginko.

You have a bad vertical output chip.

inverter boards needs replacing both master and slave

I come across this every day with LCD Tvs.What it is, is dust between the layers of the LCD. When dust particles settle behind the front layer of the LCD, and the LCD is pressed i.e when cleaned, the layers can be pushed together, resulting in a shadowy streak. If the LCD is stripped and cleaned it will be ok.

Just posted about this - ours was exactly the same. Had it returned from the Philips repair specialist yday - cost £190. not a cheap fix.

We have the same telly and had the same problem. Ours was bought Jan 08. It can be repaired, as we had ours returned from the philips repair specialist yday, but it cost £190.

hi i need help cause my philips47pfl7704dif7 when i turn on the tv it just turn blue and wont let me change sources or channels . Help me.

Try resetting the TV:

1. Switch on TV and switch to any analogue channel.
2. On the TV: Press and hold the MENU button.
3. Menu screen will appear on the display.
4. Do not release the MENU until the menu screen disappears.
5. TV will go blank for about 60 seconds and then display initial set up screen.
6. Follow the on-screen prompts to re-tune the TV.

If this does not work then the problem is likely to be a loose ribbon cable or main small signals board inside the TV.