Dell plasma question

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  • Rmasters3
    Senior Member
    • Mar 2010
    • 126
    #1

    Dell plasma question

    Picked up a 10+ year old Dell plasma about a year ago, and fixed it with some new caps in the power supply. Just recently it's begun to act up--the lower half the screen goes black.

    This is usually after extended use--1 to 1 1/2 hours. It will flash back and forth with the picture occasionally returning. On/Off doesn't affect it.

    Before I get into it--anyone have suggestions as to what to look for? I'm guessing some solid state device is overheating, but if there a common cause knowing would help.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Dell plasma question

      It would depend on who made the plasma panel for this unit, but it would likely be a controller board, Y-buffer or X-address board failure. Since it is intermittent, you may be able to locate the exact intermittent part with hot air (a standard hairdryer does a decent job)
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • whiz62
          whiz62
          • Dec 2013
          • 242
          • usa
          #3
          Re: Dell plasma question

          I have a Dell with same symptom. I replaced some caps on power board about three years ago and then the bottom going black started a short while later. i could tap on back lightly and would straighten up. it is in garage now. when i get time i will dig into it. acts like a loose connection. it is a 43" samsung panel.

            Comment

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