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Why do I have large lines runnig down my screen

I have one wide large line in the middle of my screen and one smaller line on the side it turns off Free a few min. My television is a Sharp Aquos LC46E77UN

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joseph, check all the cables going from your video board to the LCD. Check all the caps in your power supply as well as the T-Con board. It is possible that your LCD is developing a possible tab error.

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