lenovo y530 dead ite replaced - problems

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  • Sephir0th
    Badcaps Legend
    • Oct 2020
    • 1260
    • Germany

    #41
    Re: lenovo y530 dead ite replaced - problems

    It is! Maybe a second chance to review post #27 if you want.
    FairRepair on YouTube

    Comment

    • darckreign1984
      Badcaps Veteran
      • Apr 2011
      • 260
      • Romania

      #42
      Re: lenovo y530 dead ite replaced - problems

      Originally posted by Sephir0th
      It is! Maybe a second chance to review post #27 if you want.
      for moment, seem that i have to find some mosfets, to test after, and for some reason, ite died again, so i must replace it again. hope to be alive this motherboard again. i came back monday.

      have a nice weekend

      Comment

      • darckreign1984
        Badcaps Veteran
        • Apr 2011
        • 260
        • Romania

        #43
        Re: lenovo y530 dead ite replaced - problems

        Originally posted by mcplslg123
        Its still not clear to me. This is what you posted at#24

        pq201 first mosfet
        Source & drain 3.7mohm
        Source & gate 3.69mohm
        Gate & drain 0 mohm

        pq202 second mosfet
        Source & drain 4.1mohm
        Source & gate 3.75mohm
        Gate & drain 0mohm

        The multimeter have auto scale - and when I measure, I put the resistance mode and here was 0 mega ohm.
        Open circuit.

        Yes. You asumption was write.
        Value was rising, then value was show like nothing connected.
        For moment I have to find some n-chanel MOSFET on some donor defective motherboard.

        Thanks again.
        Have a nice weekend.

        Comment

        • darckreign1984
          Badcaps Veteran
          • Apr 2011
          • 260
          • Romania

          #44
          Re: lenovo y530 dead ite replaced - problems

          dead end
          - for some reason, i forget laptop conected to power adapter, and after some hours +3VALW its shorted.

          tried to see what its heating up and it appear to be "sr40b" - UH1 CHIP
          resistance measured its 1ohm.

          Comment

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