Vizio P50HDTV10A screen flickering

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  • keico
    Senior Member
    • Oct 2011
    • 52
    • United States
    #1

    Vizio P50HDTV10A screen flickering

    Ok I have a Vizio P50HDTV10A Plasma that someone gave to me. He told me that the TV screen was all white.

    When I got the TV home and plugged it in, the screen was flashing very dimly.

    I said ok and decided to check the internet for these symptoms. Now I was still saying to myself, that the previous owner said the screen was all white, so I left it plugged in to see if the screen would go all white.

    After a few minutes I heard what seemed like a loud pop.

    The screen continued to flash and flicker only now it was just a little brighter.

    I also noticed that when I turned the TV off, that the power light would flash ten times before going to yellow.

    I have searched through the board and from this thread "https://www.badcaps.net/forum/showthread.php?t=18495&highlight=P50HDTV10A" I followed the directions where it said to unplug power from the board, which I did.

    The TV did turn on, but I did not hear any sound. Initially I had unplugged both connectors, so I decided to plug in the smaller (bottom one) to see if I would get some sound. When I turned it on I still did not get any sound.

    Everything points to the Y - sustain board. I am looking for advice on what else I can check. I also feel if it is the chip on the board I could desolder and resolder. I do have a lot of experience in that.

    Finally I would like to say that this site has been a wealth of information to me in the past and i want to thank everyone for reading and for the advice.

    I uploaded the videos to YouTube.

    The first one is before the loud Pop. - https://www.youtube.com/watch?v=ls62c-waTJI

    The second one is after the loud pop - https://www.youtube.com/watch?v=kopw...ature=youtu.be
    Tags: None
    • MagicSmoke
      Badcaps Veteran
      • Feb 2011
      • 275
      • USA
      #2
      Re: Vizio P50HDTV10A screen flickering

      I have one of these sets. Does it have an LG panel and boards?

      Don't run it long with what's going on, it might damage the panel.

      These are known for bad caps on PSU. I had to change all but the 4 largest caps before mine would work properly. Unplug the connector CN805 & CN806 on PSU.

      Check for all standby volts as indicated in this post https://www.badcaps.net/forum/showpo...9&postcount=14

      I also changed all of the lower volt caps on Y & Z sus.

      The pop you heard could have been a diode popping or a capacitor or any # of other things. A visual inspection should find it.

      There may be other problems but its best to make sure all voltages are present and stable before throwing parts at it.
      Last edited by MagicSmoke; 02-01-2015, 12:47 PM.

        Comment

        • keico
          Senior Member
          • Oct 2011
          • 52
          • United States
          #3
          Re: Vizio P50HDTV10A screen flickering

          Thank you for your reply.

          I have not gotten around to taking voltage readings yet, but I am curious if it does turn out to be the Y sustain board and the IC chip is bad, is this something that can be de-soldered and replaced or would special equipment be needed.

          I do have extensive soldering experience and do have what I believe to be a good soldering station.

          I checked for any repair videos but could not find any. Just looking for as much advice as I can get .

          Again I did not pay anything for this TV and I feel it is definitely worth the investment

            Comment

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