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Picture jamming/break up on Digital TV

I have recently purchased a new HD Digital tv with built in Digital Freeview reciever. However there is a problem. Frequently when watching digital tv the picture jars and breaks up into a mess of coloured lines while the sound continues as normal. I then have to whack the side of the tv several times before the picture returns to normal. Changing channels doesnt work, and even switching to AV-5 on which I play my PS3 the same problem persists.

Does anyone have any ideas about why this is happening and how I can get it fixed?

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  • Anonymous Mar 18, 2014

    i've just moved house and my tv is only picking up the bbc channels and now even they are breaking up, ive retuned it several times but half the channels are missing and arent picking up a picture anyway

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  • Master
  • 979 Answers

Consult with your dealer about this problem as it's not normal...accordianman

Posted on Feb 19, 2008

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Tv is 4 years old yesterday it lost its built in freeview channels. when trying to get the menu up it appears for a second then goes off. Tv still receives sky and picture is good


Hello pip_o

It's possibly a defective digital tuner, but the vanishing menu suggests a more serious (and expensive) fault with the main/AV board, assuming it's an LCD TV. It's impossible to be certain which one without doing some testing, but due to the inherent dangers with high-voltage electronics, I don't advise on self-repair for TVs.

If you're looking for an inexpensive solution and the TV is no longer covered by any warranty, I'd suggest buying an external Freeview box to connect to your TV. This would also enable you to upgrade to Freeview HD. Being 4 years old, your TV will not have been fitted with a DVB-T2 (Freeview HD) tuner.

If you want to try this solution, I can recommend the following box, which is great value at just £25.

http://www.ebay.co.uk/itm/270828771661

They are described as "reconditioned", but I've bought and installed 2 of these for my own customers recently and both have been brand-new. The majority of these are unused returns which Tesco are consequently not allowed to sell described as "new". For a lesser known brand, I've been quite impressed with some of the recent Technika products and they are easy to install and come supplied with all the necessary cables, etc. Additionally, if it doesn't work for any reason, you will be able to return it under UK Distance Selling regulations.

Before purchasing this (or any other) Freeview HD box, please check your TV has a spare HDMI input socket as SCART cannot carry an HD signal. If you don't have a spare HDMI socket, I'd also check your TV has a spare SCART input socket or you will need to disconnect your Sky box every time you want to use the Freeview box - which brings me to my final point . . .

. . . Off the top of my head, I can't think of any Freeviews channels which aren't available on Sky, so as long as you can still use your TV for Sky, do you really need to spend any money on it?

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