Vizio M421VT Pic with interference help

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  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA

    #1

    Vizio M421VT Pic with interference help

    Hi guys hope you all are having a marry Christmas ,i have here a Vizio M421vt that started to have some interference in the pic, nothing else is wrong ,i send a Utube video with the fault.Any clues and help would be appreciated.

    https://youtu.be/YW1QeeCoSDA
  • dskall
    Badcaps Legend
    • Oct 2016
    • 2905
    • usa

    #2
    Re: Vizio M421VT Pic with interference help

    Can't say much for your choice of programs. Looks maybe like gamma problem.
    I assume no responsibility for any stupid suggestions I might post.

    Comment

    • ivtec
      Badcaps Legend
      • Dec 2008
      • 1967
      • USA

      #3
      Re: Vizio M421VT Pic with interference help

      Originally posted by dskall
      Can't say much for your choice of programs. Looks maybe like gamma problem.

      Thanks bro ;Not my fav channel either. Unless it's airing the Patriots game. just picked up this channel from off the Air Ota antenna to make this video,
      So you say it's gamma issue so the only way to fix is to change main board?I thought gamma issues was like this?https://www.youtube.com/watch?v=BieS43QlC6w
      Last edited by ivtec; 12-15-2021, 01:08 PM.

      Comment

      • dskall
        Badcaps Legend
        • Oct 2016
        • 2905
        • usa

        #4
        Re: Vizio M421VT Pic with interference help

        Video was kinda from side. I would try cleaning ldvs cable and see if it helps.
        I assume no responsibility for any stupid suggestions I might post.

        Comment

        • ivtec
          Badcaps Legend
          • Dec 2008
          • 1967
          • USA

          #5
          Re: Vizio M421VT Pic with interference help

          Originally posted by dskall
          Video was kinda from side. I would try cleaning ldvs cable and see if it helps.
          Cleaned up lDVS not helped ,strange this tv has a PC board and not a T-con board,i guess it's T-con and pc board ,https://www.ebay.com/itm/37267910603...MAAOSwxYRc7PmV

          Comment

          • dskall
            Badcaps Legend
            • Oct 2016
            • 2905
            • usa

            #6
            Re: Vizio M421VT Pic with interference help

            Still looks to be a t-con under the shield. So is video showing a red tint? Maybe remove shield.
            I assume no responsibility for any stupid suggestions I might post.

            Comment

            • ivtec
              Badcaps Legend
              • Dec 2008
              • 1967
              • USA

              #7
              Re: Vizio M421VT Pic with interference help

              Originally posted by dskall
              Still looks to be a t-con under the shield. So is video showing a red tint? Maybe remove shield.
              Hi mate, no the pic if perfect exept for that interference ,there is no T-con under the metal shield ,Pc board is both PC and T-con i guess.

              Comment

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