Vizio e421vo - Has Picture but NO SOUND

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  • kburks1230
    Senior Member
    • Mar 2010
    • 87

    #1

    Vizio e421vo - Has Picture but NO SOUND

    What could cause this unit to have picture but no sound?

    Thanks!
  • Hamie
    Badcaps Legend
    • Apr 2014
    • 1383
    • UK

    #2
    Re: Vizio e421vo - Has Picture but NO SOUND

    The short answer is anything!

    You'll need to be more specific, is the backlight on? Do you menus etc.

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: Vizio e421vo - Has Picture but NO SOUND

      Originally posted by kburks1230
      What could cause this unit to have picture but no sound?

      Thanks!
      No sound on ALL modes (cable, HDMI, Video 1, 2,...)?
      The internal speakers are on in the on screen user menu setup?
      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

      • Hamie
        Badcaps Legend
        • Apr 2014
        • 1383
        • UK

        #4
        Re: Vizio e421vo - Has Picture but NO SOUND

        Sorry I actually misread your title, thought it was sound but no picture.

        Well either your mainboard is causing the fault or the speakers directly.
        Last edited by Hamie; 07-10-2015, 12:14 PM.

        Comment

        • Terryfictv
          Senior Member
          • Mar 2011
          • 124
          • USA

          #5
          Re: Vizio e421vo - Has Picture but NO SOUND

          Can be EEprom on main board.

          Comment

          • ERICSSON89
            Member
            • Oct 2014
            • 46
            • NIGERIA

            #6
            Re: Vizio e421vo - Has Picture but NO SOUND

            check the ear-phone jack on the main board by plugging in earphone peice to see if you can hear the sound from it.

            Comment

            • ERICSSON89
              Member
              • Oct 2014
              • 46
              • NIGERIA

              #7
              Re: Vizio e421vo - Has Picture but NO SOUND

              also we need clear pictures of the mainboard

              Comment

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