Help finding replacement buck ic for Sony XBR-65X930D

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  • caphair
    Badcaps Legend
    • Nov 2011
    • 1249
    #1

    Help finding replacement buck ic for Sony XBR-65X930D

    I know there was a recall for these TVs due to this ic failing so wanted to make sure I got a replacment that was revised? Unless Sony revised the entire board? In any way would like to just purchase the ic from a USA seller if someone could point me in right direction. Thanks in advance
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    • lotas
      Badcaps Legend
      • Jan 2016
      • 4640
      • Russia
      #2
      Re: Help finding replacement buck ic for Sony XBR-65X930D

      Tps54334
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        • caphair
          Badcaps Legend
          • Nov 2011
          • 1249
          #3
          Re: Help finding replacement buck ic for Sony XBR-65X930D

          The same ic has again shorted out. Lasted about 8 months. Does anyone know why it keeps failing? I know it’s a known issue with this model. Anyway to prevent it shorting out again?

            Comment

            • CapLeaker
              Leaking Member
              • Dec 2014
              • 8206
              • Canada
              #4
              Re: Help finding replacement buck ic for Sony XBR-65X930D

              Does it run hot?

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                • caphair
                  Badcaps Legend
                  • Nov 2011
                  • 1249
                  #5
                  Re: Help finding replacement buck ic for Sony XBR-65X930D

                  Originally posted by CapLeaker
                  Does it run hot?
                  Not sure honestly. Sony was replacing units for the ic failing so was wondering if they did a design revision or not. Should I put a dab of thermal compound on it as a precaution?

                    Comment

                    • CapLeaker
                      Leaking Member
                      • Dec 2014
                      • 8206
                      • Canada
                      #6
                      Re: Help finding replacement buck ic for Sony XBR-65X930D

                      If heat killed it, I’d put on a heat sink, or look for a better spec’d replacement. Maybe poke around at the IC with an oscilloscope? I would have thought the buck converters are better than the LDO’s, but now I guess not?

                      Check the voltage on input. It should handle up to 24V.
                      Last edited by CapLeaker; 07-23-2023, 05:35 PM.

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