Lenovo Legion Y520-15IKBM - No power besides the main rail

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  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3599
    • slovakia

    #21
    Originally posted by mcplslg123
    ACDRV will only rise when CMSRC is present and ACOK is pulled high. Seems like overcurrent shutdown by charging IC.
    but how to measure where is fault?

    Comment

    • mon2
      Badcaps Legend
      • Dec 2019
      • 14258
      • Canada

      #22
      Post # 19

      Comment

      • ktmmotocross
        Boardkiller
        • Feb 2014
        • 3599
        • slovakia

        #23
        Originally posted by mon2
        Post # 19
        1-2 - 0.4ohm
        2-gnd - 10 Mohm

        Comment

        • ktmmotocross
          Boardkiller
          • Feb 2014
          • 3599
          • slovakia

          #24
          there must be some common fault on circuits with these chips. i have many of them with this fault that i cannot repair. anybody knows what often goes bad on this circuit?
          Last edited by ktmmotocross; 06-22-2024, 11:01 PM.

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          • Fronczek
            Member
            • Jan 2024
            • 33
            • Poland

            #25
            Weirdly just like apple laptops...

            Comment

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