VIZIO E321VL no dc out put volts on the secondary side of the board

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  • djpat1974
    Senior Member
    • Nov 2014
    • 65
    • united states

    #1

    VIZIO E321VL no dc out put volts on the secondary side of the board

    Hi everyone i have and VIZIO E321VL with no out put volts on the secondary side of the board i bought the power board kit from eBay and still no power on the out put on the secondary side of the power boar i mean no 5v,12v,or 24v i only have ac volts on the primary side please help much will be appreciated.
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: VIZIO E321VL no dc out put volts on the secondary side of the board

    http://www.shopjimmy.com/catalogsear...q=VIZIO+E321VL
    Which one is the exact matched of your power supply board?
    Do you have about 160VDC between the + and - of the main filter cap in the primary side?
    BTW, your picture is too blur for my eyes.
    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

    • djpat1974
      Senior Member
      • Nov 2014
      • 65
      • united states

      #3
      Re: VIZIO E321VL no dc out put volts on the secondary side of the board

      hi thanks for the reply yes am getting 168 volts across the main cap on the primary side

      Comment

      • djpat1974
        Senior Member
        • Nov 2014
        • 65
        • united states

        #4
        Re: VIZIO E321VL no dc out put volts on the secondary side of the board

        re upload pictures
        Attached Files

        Comment

        • djpat1974
          Senior Member
          • Nov 2014
          • 65
          • united states

          #5
          Re: VIZIO E321VL no dc out put volts on the secondary side of the board

          every thing on the primary side is working can you tell me this what creats 5v ,and 12v,24v on the secondary side

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA

            #6
            Re: VIZIO E321VL no dc out put volts on the secondary side of the board

            Originally posted by djpat1974
            every thing on the primary side is working can you tell me this what creats 5v ,and 12v,24v on the secondary side
            How did you figure that?
            It is not working that is why you do not have the standby 5V.
            That small yellow transformer is the one that generates the Standby Voltage.
            It looks like some one did not install the SMPS IC (next to the yellow transformer) back on the heatsink properly, I can see the gap between the heatsink and the body of the IC., the mounting screw is missing? What is the story on this board, someone messing with it and not putting the part back in properly.
            Your pictures are so bad I cannot even read any labels on the board. So which one is your board?
            Last edited by budm; 05-12-2017, 12:24 AM.
            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

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA

              #7
              Re: VIZIO E321VL no dc out put volts on the secondary side of the board

              Your board:
              http://www.shopjimmy.com/vizio-0500-...upply-unit.htm
              Vizio 0500-0412-1010 Power Supply / Backlight Inverter
              Some one messed with the board before you?

              Pictures provided by shopjimmy.
              Attached Files
              Last edited by budm; 05-12-2017, 12:23 AM.
              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

              • djpat1974
                Senior Member
                • Nov 2014
                • 65
                • united states

                #8
                Re: VIZIO E321VL no dc out put volts on the secondary side of the board

                hi thanks i replace that part with a new one i have to put back in the screw when the board start working properly am not sure if some one mess with before me yes this is the right board Vizio 0500-0412-1010 Power Supply / Backlight Inverter.

                Comment

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