Vizio XVT553SV Sound, no picture

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  • AlDunbar
    New Member
    • Apr 2013
    • 3
    • United States
    #1

    Vizio XVT553SV Sound, no picture

    I am a complete noob who got a Vizio XVT553SV from a friend. It reportedly had sound, but no picture. I have disassembled it and see no obvious bulging caps. I have checked continuity on all the little fuses and, assuming I did it right, they're all fine.
    Where do I start in diagnosing?
    Tags: None
    • Dgtech
      E. Technician
      • Apr 2009
      • 1462
      • Steeler
      #2
      Re: Vizio XVT553SV Sound, no picture

      Inverter boards are a good start but the power board cannot be ruled out just yet. Posting pictures would help as well.
      The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

        Comment

        • AlDunbar
          New Member
          • Apr 2013
          • 3
          • United States
          #3
          Re: Vizio XVT553SV Sound, no picture

          Sorry for the delay. I am now set up to reply quickly.

          Here are two boards, some pics better than others.

          Of the two other full-sized boards, one is the large power supply board and the other has "LED driver" printed on it.

          Please let me know what else I need to show.
          Attached Files

            Comment

            • Dgtech
              E. Technician
              • Apr 2009
              • 1462
              • Steeler
              #4
              Re: Vizio XVT553SV Sound, no picture

              Hold a flashlight to the screen to see if there is a picture.
              The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

                Comment

                • AlDunbar
                  New Member
                  • Apr 2013
                  • 3
                  • United States
                  #5
                  Re: Vizio XVT553SV Sound, no picture

                  Just plugged it in myself, LED backlighting seems to be working (the screen has a light to it, just no picture). I played a movie while shining a flashlight at the screen and looking up close, see nothing. Could the backlighting be overpowering any faint image?

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