ps51e450 sound but no picture

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  • wreksta
    Badcaps Veteran
    • Aug 2013
    • 508
    • england
    #1

    ps51e450 sound but no picture

    hi all I have a Samsung ps51e450 that has no picture I have sound

    I have checked the vs and va coming from power board they sit at 10.6 vs and very low for va I disconnected the x-y main from the power board and get no voltages
    from vs-va testpoints
    ive checked main board to power board and all voltages are correct
    any ideas if its the main or the power board
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: ps51e450 sound but no picture

      Check vs and va as set powers on - it will probably fire them briefly then cut out. Try with and without y/xmain.

      If it does check control board for error led (flash every 5-7 sec vs every second when ok)
      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

        • wreksta
          Badcaps Veteran
          • Aug 2013
          • 508
          • england
          #3
          Re: ps51e450 sound but no picture

          Hi tom the vs and va fire full then drop and I think the led does light every 5-7 seconds also tried without the x-y connected and get no voltage

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: ps51e450 sound but no picture

              Ok, you will have to check Vscn and Ve.
              Also check plasma panel very carefully for cracks in the screen, especially around the edge, you know the drill.
              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

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