Vizio will not turn on

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  • fmlu
    New Member
    • Nov 2014
    • 4
    • usa
    #1

    Vizio will not turn on

    I have a Vizio M502i B1 and yesterday I found it turned off and it would not turn on. Originally as I tried the white light on the side of the tv would come on Some times the screen showed the vizio sign in the middle of the screen but this then disappeared and tv did not come on. I then tried power cycling the tv a couple of times, after power cycling not even the white light on the side came on. In fact after the power cycling nothing at all happens when I try to turn the tv on.
    Unplugged tv and left it unplugged overnight; this morning I put the plug back in and the TV powered on without any problem. It has now been running for over five hours without any problems. Any ideas as to what might be the problem. Thanks in advance
    Tags: None
    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa
      #2
      Re: Vizio will not turn on

      Need good clear straight on pictures of back of tv with cover off and each board.
      I assume no responsibility for any stupid suggestions I might post.

        Comment

        • fmlu
          New Member
          • Nov 2014
          • 4
          • usa
          #3
          Re: Vizio will not turn on

          Roundbox has already posted pictures for this model M502i-b1. Looking for information as to what might be the cause of this problem.

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: Vizio will not turn on

              Since it is working right now, then you should record the DC Voltage reading of the power supply connector pins that go to the main board, then take the reading when the TV stops working.
              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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