samsung pn50a450p1dxza

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  • TimT
    Badcaps Veteran
    • Nov 2012
    • 268
    • us

    #1

    samsung pn50a450p1dxza

    Hi everyone, when plugged I hear a click then get very little " white noise " on the screen. then I hear the startup chime then another click, the a solid white " bar " about 5 inches wide appears on the screen going up and down.

    This last for about 3 seconds then the screen turns on " red static " with a bar running across the screen. the green led2 is constantly blinking ( see picture)

    Tested all fuses glass type and SMF all ok.
    checked all connections.

    Dont know were to go from here? firmware?
    Attached Files
  • ben7
    Capaholic
    • Jan 2011
    • 4059
    • USA

    #2
    Re: samsung pn50a450p1dxza

    Did you try to use different inputs, different video sources, or different cables?

    Does the menu for the TV work?

    Might be an issue with the x/y boards, user 'tom66' will know...

    -Ben
    Muh-soggy-knee

    Comment

    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK

      #3
      Re: samsung pn50a450p1dxza

      Y-buffer very likely. This TV combines the Y-buffer and Y-main into one board.

      This problem is never "alone" X/Y-main (unless buffer is integrated); those boards only make the panel light up and can't cause this problem.

      Unfortunately you will likely need to replace the whole Y-main board.
      Last edited by tom66; 12-16-2012, 07:58 AM.
      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

      • TimT
        Badcaps Veteran
        • Nov 2012
        • 268
        • us

        #4
        Re: samsung pn50a450p1dxza

        Thanks Tom66 I just found the controls. the sound does work. and I can tell the menu does come up. had it on a local channel I can tell the picture is working. i can detect a hint of movement on screen. so it needs a new y-main? " big board on left " y sustain?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: samsung pn50a450p1dxza

          Y-sustain (LG) == Y-main (Samsung) == SC (Panasonic)
          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

          • TimT
            Badcaps Veteran
            • Nov 2012
            • 268
            • us

            #6
            Re: samsung pn50a450p1dxza

            Thank you!

            Comment

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