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colored vertical lines all over screen of my tv

colored vertical lines all over screen of my Sony Bravia KDL22EX423 led Tv

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When the connection is on it displays only SONY and blank out, there is nomore process is on

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Vimanga Fernando this could be a T-con board error. I'd start with that.

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ok how can i find out that t-con board ?

Can you post some images of all of your boards but this time do one board at a time and take the picture straight onto the board.

Basically its have a two bored,s

Okay so most likely the trouble is on the board that has the ribbon cable which connects to the LCD.

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