Top 5" of Screen is Copied at Bottom

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  • tzero11
    New Member
    • Aug 2011
    • 4
    • USA
    #1

    Top 5" of Screen is Copied at Bottom

    I have a Philips plasma 42PF7220A/37 that displays fine for most scenes but when the top part of the screen is light and the lower part of the screen is dark, the top 5" of whats displayed on the screen overlays the true image on the bottom of the screen. I call is "ghosting" since I can still see the original image beneath the overlaid image. It is a stationary bar that appears as a "gray" version of whats displayed at the top of the screen. It happens whether the unit is hot or cold and it doesn't matter which input is being used. Specifically, I'm using the HDMI input from my Verizon FIOS STB set to 1080i and the Component input from a DVD player. I've searched around but i can't find anyone else with the same problem or a solution to anything remotely similar.

    I got the TV from my friend who was throwing it because it has the 7-blink error. I ended up changing the y-buffers, changing (2) 3300uf caps on the power supply and replacing a shorted MOSFET on the y-sus board. This is my first plasma repair but I have experience in repairing electronic devices. Please let me know if anyone has a solution.
    Tags: None
    • PlainBill
      Badcaps Legend
      • Feb 2009
      • 7034
      • USA
      #2
      Re: Top 5" of Screen is Copied at Bottom

      My guess would be the logic main board.

      PlainBill
      For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

      Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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