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Repair guides and support for televisions manufactured by Sony.

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Image Issues Blue Lines os screen

Hi Guys

I have a Sonvy Bravia model KDL-50W685A that i bought at 2013 . Suddenly the screen initially start to have pixels randmly like when loos the HD Signal . but after that shows horizontal blue lines . The sound working ok and the channels change also .

I try to recycle the power and i leave it all night closed but this is not solve my problem .

I attach the photo with the problem .

Any ideas would be appreciated .

Update (07/07/2018)

Hi to all

I reseat all the cables for the board to panel bust still the same issue .

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@costasc

please attach some pictures of what your screen shows. Use this guide iFixitでの質問に画像を追加する方法 for that.

Horizontal lines are almost exclusively a panle fault. Once we see what your panel shows we can hopefully get you a better answer.

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I would suspect poor connections to the panel. Open up the TV and re-seat all of the cables. Start there and update this with the results.

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Hi Dan

Just to clarify , you mean the connection inside the tv and not the aerial cable

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That is correct. Since the signal level between the logic board and the panel is so small, it does not take much corrosion or dirt to cause a problem. Simply removing the cable and reinserting it often will "cure" the problem.

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@costasc

that could be a main board issue as well as a panel issue. I would start with the main board, checking the t-con board as well. disconnect all teh wiring form the T-con board to the panel. then just connect one side. Let us know what it shows.

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Costas さん、ありがとうございました！
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