Question about Mitsubishi WS-55807 TV

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Pink screen turn on set, the screen is pink for hours, or all day, borad looks dry

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  • rickbowers Nov 03, 2008

    Thanks

    But what I found was a loose plug, Push on all of them, one clicked, then rechecked pic (ok)

    hopefully that's the problem

    Rick

  • Anonymous Dec 14, 2008

    Hi,
    my pink screen is back. Which board is the convergence ic board?
    Rick

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  • Master
  • 934 Answers

Rick, Check the convergence Ic's on the foil side for any hairline cracks in the solder joints and re-solder them if you find any... Other than that you may need to replace the convergence Ic's and possible some of the yoke return resistors. What you're seeing on the screen is an absence of one of the colors, blue from what you're describing and that may just be one of the amps is missing voltage due to ring cracks.
Bill

Posted on Nov 03, 2008

  • William Rayburn
    William Rayburn Nov 03, 2008

    My guess is, depending on the plug and where you found it, that the pressure exerted to re-seat it may have brought back the picture by flexing the pc board near the area of ring cracking I described. Ring cracks are VERY common in that unit. You may want to test that theory by applying slight pressure in other areas of the board with a non-conductive probe and see if the problem returns...

    Bill

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