Vizio M470SL Issues

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  • Audioplus
    Senior Member
    • Feb 2012
    • 157
    • USA
    #1

    Vizio M470SL Issues

    This one is driving me nuts! Unit powers up with remote and manually. I get the backlight, no picture or menu. I've replaced the Power Supply and been through 2 Main Boards (I'm suspecting that the main board may be faulty). I am now going to try a LED Driver, but really don't know how that could be the issue.

    Should I try another PS, or try a Main Board? None of the regular suppliers have Main Board's available so I do believe it could be faulty, maybe try a 3rd?

    Does anyone know how to access firmware for Vizio? I would like to try a new firmware download?
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Vizio M470SL Issues

      How about the T-CON board? Or it is one of those panel with integrated T-CON?
      'I get the backlight' That means the backlights circuits and lights are OK.
      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

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