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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 在已经存在的问题里加入图片 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

由完成的

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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