Question about Panasonic PT-53WX53 53" Rear Projection HDTV-Ready Television

1 Answer

Vertical lines on a panasonic PT-53WX53G Chassis AP825

I was trying to help a friend fix his TV. The picture was distorted so I took a shot at changing the STK chips since that fixed the problem with my set earlier back. It was a successful repair however a new problem has come into play. The TV works great for and hour or two, after that, the screen goes to all bluish green lines going vertically about every 1/4 inch or so covering the whole screen (the lines are from the blue and green guns). It has done it with red also but only once. It over powers any feed (DVD, Cable, ect.) and makes it look almost like a negative. It also does it on all the inputs regardless weather there is anything hooked up or not. The weird thing is, the menu works fine (it displays over the problem). It almost looks like a stray signal coming from somewhere. Once this happens, it will only return back to normal once the set has been off for several hours. I tried wiggling and moving the board around suspecting a loose connection but it didn't change. I am guessing a heat related problem but I don't know where to start looking. I tried blowing air over certain areas with no effect. I have pictures of this problem if needed. Just leave me an address I can send them too. Any help with this matter would be greatly appreciated, Thanks

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  • Joe1974 Mar 11, 2009

    Which one is the A board? Is it one of the boards that clip into the
    main boards? I have several pics of the set. Let me know if you need
    any. Thanks, Joe

  • Joe1974 Mar 12, 2009

    Ok thanks, what does this board do anyway and where is the best place to get a replacement if needed?

  • Joe1974 Mar 16, 2009

    OK found the problem on the Panasonic, there was PTV fluid in/on the board. (long story) Cleaned the board, set is ok now. I have a new one for ya. I picked up a Sony KP57HW40 a while back, went through the turns one color and shuts off ****. I have a new but related problem. I posted it under Sony so here is the link, could you take a look at it?




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  • 8,617 Answers

I have seen that symptom caused by bad caps on the A board look at the tops of the capacitors for any sign of swelling or puffiness on the tops.

Posted on Mar 10, 2009

  • Sonny Berry
    Sonny Berry Mar 11, 2009

    The A board is the large green board on the left side when looking in the rear of the set



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