SV470XVT1A Will not turn on

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  • cumlaopre
    New Member
    • May 2012
    • 4
    • PR

    #1

    SV470XVT1A Will not turn on

    Vizio SV470XVT1A

    Was watching Mayweather vs. Cotto fight and the tv suddenly turned off after hearing a sound like "tack". Now the Vizio logo is does not turn on (no longer orange) seems the unit is not getting any power.

    Any idea?
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: SV470XVT1A Will not turn on

    You need to open it up and check the Main fuse first. Look for any burn parts inside also.
    Post good clear pictures of the boards using upload function.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • cumlaopre
      New Member
      • May 2012
      • 4
      • PR

      #3
      Re: SV470XVT1A Will not turn on

      Inline pics removed and uploaded.
      Attached Files
      Last edited by Krankshaft; 05-18-2012, 06:02 AM.

      Comment

      • cumlaopre
        New Member
        • May 2012
        • 4
        • PR

        #4
        Re: SV470XVT1A Will not turn on

        Please ignore the iPhone photos. I don't know which is the main fuse. Any help is appreciated.

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: SV470XVT1A Will not turn on

          Please reload the pictures using Go Advanced and then upload the pictures instead of posting the pictures in the message, takes a long time to load, most people will not look at this post.
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

          Comment

          • retiredcaps
            Badcaps Legend
            • Apr 2010
            • 9271

            #6
            Re: SV470XVT1A Will not turn on

            Originally posted by budm
            takes a long time to load, most people will not look at this post.
            Already hit next thread and moving on. I'm on wifi right now and not revisiting this thread.
            --- begin sig file ---

            If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

            We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

            Please do not post inline and offsite as they slow down the loading of pages.

            --- end sig file ---

            Comment

            • ratdude747
              Black Sheep
              • Nov 2008
              • 17136
              • USA

              #7
              Re: SV470XVT1A Will not turn on

              Funny, A quoted version of the thread loaded just fine with the pics inline (Moderator report).
              sigpic

              (Insert witty quote here)

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA

                #8
                Re: SV470XVT1A Will not turn on

                Thanks cumlaopre for reloading the pictures properly, I will look and see and jog my menory on this model.
                i will download the pictures and redline what I need you to test.
                By the way, this model is known for having shorted out MOSFETs in the Inverter board.
                http://s807.photobucket.com/albums/y...%20SV470XVT1A/
                Also, you know how to use meter? Just to be sure.
                Attached Files
                Last edited by budm; 05-18-2012, 12:24 PM.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                Comment

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