Samsung PS50Q96HDX Horizontal Lines

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  • pic_whiz
    Member
    • Feb 2014
    • 36
    • United Kingdom
    #1

    Samsung PS50Q96HDX Horizontal Lines

    Hi All,

    I'm hoping for a little assistance with the above plasma.

    The set arrived with a glowing Buffer IC on top board (2nd from top), so proceeded to replace and also rebuild the YSUS board with new FET's etc. Set now runs OK, but has two horizontal lines across the top part of the screen at approx 1cm apart. The lines are not black but almost appear to be inverted. (see attached Pics)

    Any ideas?

    Cheers,

    Matt
    Attached Files
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung PS50Q96HDX Horizontal Lines

      Check soldering for that buffer IC - joined pins and pins not connected.
      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

        • pic_whiz
          Member
          • Feb 2014
          • 36
          • United Kingdom
          #3
          Re: Samsung PS50Q96HDX Horizontal Lines

          Thanks Tom,

          I couldn't see any shorts, but some of the pins looked a bit light on the solder side. Re-soldered all the pins again and it now works a treat!

          Thanks once again,

          Matt

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Samsung PS50Q96HDX Horizontal Lines

              Great to hear. Did you put the insulating gunk on the pins after soldering too? That is important, otherwise humid air might lead to blown buffer IC.
              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

                • pic_whiz
                  Member
                  • Feb 2014
                  • 36
                  • United Kingdom
                  #5
                  Re: Samsung PS50Q96HDX Horizontal Lines

                  Yes Tom, all gummed up again now.

                  It took longer to remove the silicone than to re-solder the IC again..a true PITA.

                  Cheers,

                  Matt

                    Comment

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