Blowing Fuses on this...

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  • NicoNico
    Member
    • Sep 2013
    • 31
    • United States
    #1

    Blowing Fuses on this...

    P50HDM Vizio Plasma with LG boards...

    took a quick video of symptoms... http://youtu.be/CwHbEXCOhFE

    D15 comes on
    D17 comes on
    D1 Comes on then shorts out and relay turns off

    Main board light stays on.

    I tried a few things from this forum...

    https://www.badcaps.net/forum/showthread.php?t=25596

    no fuses were blown when I started.. now on Y-sus board fuse keeps blowing fuses... help?

    it sounds like a short near the top left PSU near transformers... Thanks Guys...

    3 TV's kept out of Dump... lets make it 4
    Attached Files
    Last edited by NicoNico; 09-16-2013, 09:49 AM.
    Tags: None
    • NicoNico
      Member
      • Sep 2013
      • 31
      • United States
      #2
      Re: Blowing Fuses on this...

      also saw a puff of smoke come from Z-sus board when i unplugged Z-sus board... and turned it on... am i wrong but how does power get to Z-sus board? isn't it from Y-sus board?
      Last edited by NicoNico; 09-16-2013, 12:28 PM.

        Comment

        • johnboy1313
          Badcaps Legend
          • Nov 2012
          • 1959
          • USA
          #3
          Re: Blowing Fuses on this...

          Pretty sure the Z is powered from the Y. Y is on the left, Z is on the right.

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Blowing Fuses on this...

              X-sus = Z-sus. Same function different name. Please clarify.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                • NicoNico
                  Member
                  • Sep 2013
                  • 31
                  • United States
                  #5
                  Re: Blowing Fuses on this...

                  Originally posted by tom66
                  X-sus = Z-sus. Same function different name. Please clarify.
                  it is Z-sus sorry going from pic i found on my travels

                  this is what i am looking at... not my pic but same setup

                  Puff came from right Z-sus board near bottom
                  PS= Power Supply

                  Y = Y-sus

                  X = Z-sus

                  M= Main

                  L= Logic

                  A, B, C, D = connectors
                  Attached Files

                    Comment

                    • NicoNico
                      Member
                      • Sep 2013
                      • 31
                      • United States
                      #6
                      Re: Blowing Fuses on this...

                      when i first tested it D2 lit up but not since fuse blew

                        Comment

                        • NicoNico
                          Member
                          • Sep 2013
                          • 31
                          • United States
                          #7
                          Re: Blowing Fuses on this...

                          How do I check if Power board is culprit? how do i trace it down? cause if it is blowing fuses on Y-sus doesn't that mean it is putting out to much from Power board?

                          Fuse that keeps blowing in attached picture
                          Attached Files
                          Last edited by NicoNico; 09-16-2013, 03:55 PM.

                            Comment

                            • NicoNico
                              Member
                              • Sep 2013
                              • 31
                              • United States
                              #8
                              Re: Blowing Fuses on this...

                              I am borrowing my brothers Fluke 123/3 portable scope... what should i look for?

                                Comment

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