Samsung OLED QN77S90 Bad Power Supply

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  • Davi.p
    Hobbist Tech
    • Sep 2009
    • 4312
    • Italy - Milan

    #21
    Is there 13v on PSB cable to tcon? Or if it carries only vdrv, from main board to tcon..

    Comment

    • cheebster
      Badcaps Veteran
      • May 2008
      • 373

      #22
      VDRV to tcon, 13V to main only

      Comment

      • Davi.p
        Hobbist Tech
        • Sep 2009
        • 4312
        • Italy - Milan

        #23
        No, i've said, if there is 13v supply from main board to tcon

        Comment

        • greenyboy
          New Member
          • Nov 2022
          • 1
          • Canada

          #24
          Having the same problem right now with the exact same board. One of the GP47S60YERD (EYA36 marking on the PCB) is shorted on all three pins. Fuse was blown too. I can't find for the life of me a datasheet for GP47S60YERD on the internet, can you confirm IKW50N60DTPXKSA1 was a correct replacement? Some sources says the GP47S60 is a MOSFET , but if you replaced it with an IGBT I'll take your word for it.

          Comment

          • Davi.p
            Hobbist Tech
            • Sep 2009
            • 4312
            • Italy - Milan

            #25
            can you post a bright sharp picture of the cleaned body of the original mosfet? (marking face)

            Comment

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