Violet pixels

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  • Behemot
    Badcaps Legend
    • Dec 2009
    • 4845
    • CZ
    #1

    Violet pixels

    I've been asked about a Panasonic TX-P42G30E which supposedly has very high amount if violet pixels after start. They get normal when the TV warms up. I would say something like ribbon cold joint or maybe some TCon processor?
    Attached Files
    Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

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    Tags: None
    • narcisso
      New Member
      • May 2016
      • 1
      • Slovakia
      #2
      Re: Violet pixels

      Ahoj, podarilo sa Ti to vyrieΕ‘iΕ₯ ?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK
          #3
          Re: Violet pixels

          Most likely caused by low Vsus voltage.
          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

            • Behemot
              Badcaps Legend
              • Dec 2009
              • 4845
              • CZ
              #4
              Re: Violet pixels

              What's the cause? Bad caps?
              Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

              Exclusive caps, meters and more!
              Hardware Insights - power supply reviews and more!

                Comment

                • dick_barton
                  Badcaps Legend
                  • Aug 2015
                  • 6642
                  • Wales
                  #5
                  Re: Violet pixels

                  Clear sharp photo's of the circuit boards is always helpful to others who may be able to spot a problem.
                  Willing to help but I'm no expert.

                    Comment

                    • Behemot
                      Badcaps Legend
                      • Dec 2009
                      • 4845
                      • CZ
                      #6
                      Re: Violet pixels

                      If I had the TV, I would of course opened it and checked the caps already with ESR meter. The point was to discover if it may be a thing I can even repair. Otherwise there is no point dragging the TV to me over a long distance and me wasting the time with it…
                      Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

                      Exclusive caps, meters and more!
                      Hardware Insights - power supply reviews and more!

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                        • ReeceyBurger123
                          Never Give Up !
                          • May 2014
                          • 7325
                          • Britain
                          #7
                          Re: Violet pixels

                          Age on the Pdp, so increasing Vs means the panel pixels can discharge better/faster. With lower Vs they dont discharge properly and you get distortions like that when the panel ages, the gases become harder to light.
                          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                          https://www.facebook.com/Telford-Tel...7894576335359/

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