Y-SUS/BUFFER board for LG 50PN450B, burned caps

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  • jczarniak
    Senior Member
    • Oct 2015
    • 179
    • UK
    #1

    Y-SUS/BUFFER board for LG 50PN450B, burned caps

    Hi,
    I've got LG 50PN450B with faulty Y-SUS/BUFFER board.
    Board no: EBR74825301 / EAX64561401
    All I can see are two burned caps: C415, C416.
    Anyone knows, why they gone, what else could be faulty etc ... ?
    Can't find any obvious short circuit etc ...
    Thank you for any support.
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    • ReeceyBurger123
      Never Give Up !
      • May 2014
      • 7325
      • Britain
      #2
      Re: Y-SUS/BUFFER board for LG 50PN450B, burned caps

      Check the forum for this Tv/board common issue I belive is just them caps failing.
      Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

      https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • jczarniak
          Senior Member
          • Oct 2015
          • 179
          • UK
          #3
          Re: Y-SUS/BUFFER board for LG 50PN450B, burned caps

          Checked the forum, thank you.
          There is no picture or glow at all (black screen) just because of them two caps?
          Is there any way to bypass etc... to prove, check the board because I don't know the values of the caps.
          Thank you.

            Comment

            • Hamie
              Badcaps Legend
              • Apr 2014
              • 1383
              • UK
              #4
              Re: Y-SUS/BUFFER board for LG 50PN450B, burned caps

              The caps are 22nf

                Comment

                • jczarniak
                  Senior Member
                  • Oct 2015
                  • 179
                  • UK
                  #5
                  Re: Y-SUS/BUFFER board for LG 50PN450B, burned caps

                  Originally posted by Hamie
                  The caps are 22nf
                  Thanks a lot.

                  Will be this one good enough, please?

                  http://uk.rs-online.com/web/p/products/2644602/

                  Do I need to replace anything else or just them 2 caps?

                  Thank you.

                    Comment

                    • jczarniak
                      Senior Member
                      • Oct 2015
                      • 179
                      • UK
                      #6
                      Re: Y-SUS/BUFFER board for LG 50PN450B, burned caps

                      I also found shorted Q401 and Q402, GT30F133
                      Anyone knows any equivalent / replacement which I can buy in RS Components, please?

                        Comment

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