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You have a defective LCD panel. If it is under warranty, exchange it ASAP. If not, it's time for a new TV, as it is usually more expensive to repair it than buy a new one.
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Hello,
Normally the menu is generated in the LCD Control Unit. If your menu looks good, but the defect is behind the menu, I would suspect the Main PCB. Good luck to you. Part# is DUNTKD934FM01-V1.
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It could be localised interference, try different modes. Maybe it is a poor quality connection on a cable? If all else fails www.toshiba.com will get you to the technical team for assistance. You could always take it back for an exchange of course.
Do you have anything to test it in 1080i? Does it do it on all connections or just one? I had a similar problem with my TV that turned out to be a bad input board. Mine would only display 1080i through the Component connections. All others would show pink and green wavy lines. It cost me around 500 to fix it. Unplug the TV. Remove the back cover for the TV. Using a NON-metal object, or gloves, wiggle the input board (that has all the video connections on it) slowly back and forth and see if the problem comes and goes. You will have to have someone watching for you. If something is loose on that board, the problem should show itself. Narrowing down the problem will probably save you money on repair bills.
never had this problem until we switched to hd tv service, changed it from 720p to 1080i and it helped it a little. will let uyou know if I find out how to fix it completely
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