Pioneer plasma PDP5070 HD TV

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  • pcjewell
    New Member
    • Feb 2015
    • 3
    • USA

    #1

    Pioneer plasma PDP5070 HD TV

    We were watching tv when we heard a pop, sparks came out the top & screen went blank. Removed the back, no visible damage, blue power light and red standby light are on. Tried to reset trap switch, blue & red lights still on. Any ideas?
  • MagicSmoke
    Badcaps Veteran
    • Feb 2011
    • 275
    • USA

    #2
    Re: Pioneer plasma PDP5070 HD TV

    Look at PSU, X and Y boards and Y buffers closely. If you heard a pop and there were sparks then something is going to be visibly damaged somewhere.

    Good quality pics of all boards would help.

    Comment

    • pcjewell
      New Member
      • Feb 2015
      • 3
      • USA

      #3
      Re: Pioneer plasma PDP5070 HD TV

      We can't get good pics so we took out the main power board, no visible damage, no burn marks on front or back, all capacitors look in tact, but one has a black dot that's not consistent with the rest.

      Comment

      • MagicSmoke
        Badcaps Veteran
        • Feb 2011
        • 275
        • USA

        #4
        Re: Pioneer plasma PDP5070 HD TV

        Its not just caps that can pop. Diodes, fet's, Vr's and resistors can fail with a pop.

        Check buffer boards and the ribbon cables going to the panel for burn marks or other damage.

        If there were sparks, something had to let them out.

        Comment

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