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Vizio M422i-B1, blown main caps, the plague or something else?

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    Vizio M422i-B1, blown main caps, the plague or something else?

    Today I bought this Vizio M422i-B1 with the complaint of white smoke coming from within the back of the TV. I found the two main caps are blown on top with a trail leading away from them. Even with this jacket the TV still works, turns on and otherwise functions normally.

    My first impression when I saw the caps was “not original”. I could be wrong on that…..but they are rated at 220V/120uF.

    So my question, is this capacitor plague related or should I be looking for a reason they blew?
    Attached Files
    They call me......."threadkiller"

    #2
    Re: Vizio M422i-B1, blown main caps, the plague or something else?

    The caps are bad for sue but I do not see any liquid coming out on the top based on the pictures, I would say just replace the caps. BTW, the power supply does not have PFC Voltage booster so 220 ~ 250VDC rating caps will be fine.
    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


      #3
      Re: Vizio M422i-B1, blown main caps, the plague or something else?

      Thanks budm, I will order those caps tonight. One more question, the caps have some kind of white paste/glue that hold them to the board. I need to get me some of that. What is it and I'm sure DigiKey has it?
      They call me......."threadkiller"

      Comment


        #4
        Re: Vizio M422i-B1, blown main caps, the plague or something else?

        Silicone RTV will be fine for that purpose, or hot glue.
        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


          #5
          Re: Vizio M422i-B1, blown main caps, the plague or something else?

          So after selecting economy delivery the caps came in this morning, I installed them and all appears to be well!
          They call me......."threadkiller"

          Comment

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