UNDONE MULTIPLUGS AND RECONNECTED SAME
If there are colored lines then it could be the inverter's aren't able to continue to power up the screen but are driving these colored lines? Is it an LCD or a Plasma. My guess is a plasma?
Graham, unfortunately your issues isn't with the TV's power supply but more with the LCD panel itself. You are correct with the thought its a heat issue as the panel gets warmer it is drawing more power where these vertical lines are displaying. Sorry! Cost more to fix it then to buy a new one!
Thank you for your time
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SOURCE: LG plasma tv
Most likely it's the PDP panel wires failure. It won't cost you more to repair then to buy a new one.
SOURCE: Vertical colour lines on whole screen
The problem is that the panel has failed. Apparently this is a common problem with LCD TV's between 18 mths and 3 yrs old. If it survives over 3 yrs it is likely to last for a few years longer. The cost of replacing the panel is more than a replacement TV!
SOURCE: our tv has vertical lines running through a black
this is a heat realted problem with your T-Con board you should have a tech replace it not to expenxsive
SOURCE: vertical colour bars
The problem is in the LCD controller board is overheated because the power supply unit is at the bottomof the TV and the heat rises upward to the vent on the top of the TV. You can verify that is hest problrm by running TV with the back removed and have a small fan blowing on the top secdtion of the TV where the LCD controller is. This how I fixed my scrambled picture after warm up (I added heat sinks to the IC on the LCD controller board) : http://s807.photobucket.com/albums/yy352/budm/LTV-32W3HD/
You can try it if the board was not badly damaged already by the heat. My has been running great for over a month now.
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The TV is a samsung 32 LCD as said the picture fades and I am left with bright coloured lines - vertical, this can happen after 2 hours. Could this be overheating of the power supply board
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