Identify a component from Asus R702U

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  • fa2k
    New Member
    • Mar 2019
    • 8
    • DE

    #1

    Identify a component from Asus R702U

    Hey guys,
    got an broken Asus R702U with the motherboard X705UQ. It dont start at all (no fan spin, no hard disk) only the charger led is on.

    i found a short on it but cant identify a component sitting there. Have you an idea what this could be? On the 6pin chip stay "WF", but it dont look like any listed smd component with WF

    thanks!
    Attached Files
  • R_J
    Badcaps Legend
    • Jun 2012
    • 9532
    • Canada

    #2
    Re: Identify a component from Asus R702U

    Is that the only letters on the chip? the picture does'nt really show anything. Does it look like this?
    Attached Files
    Last edited by R_J; 04-12-2020, 06:59 PM.

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    • fa2k
      New Member
      • Mar 2019
      • 8
      • DE

      #3
      Re: Identify a component from Asus R702U

      it says only WF in big letters. It looks like the pic attached. All connectors are on the bottom side without a path to the sides. ridiculously small component
      Attached Files
      Last edited by fa2k; 04-13-2020, 06:53 AM.

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      • Spider1211
        Badcaps Veteran
        • Oct 2019
        • 532
        • Mauritius

        #4
        Re: Identify a component from Asus R702U

        SMD marking is unfortunately not standardized. Your best bet would be to try finding it on the schematic. Can you try to identify the purpose of the circuit?

        Comment

        • fa2k
          New Member
          • Mar 2019
          • 8
          • DE

          #5
          Re: Identify a component from Asus R702U

          its pretty important, since the notebook dont power up without this chip. My best guess its a power regulator, but near impossible to find a suitable part to replace. maybe someone has a similar board and can take a look at this component?!

          Comment

          • Spider1211
            Badcaps Veteran
            • Oct 2019
            • 532
            • Mauritius

            #6
            Re: Identify a component from Asus R702U

            Try this: http://www.hotenda.com/marking-code/search/list/WF.html

            Can you trace the circuit path and try making a schematic for the connections to this IC?
            Last edited by Spider1211; 04-17-2020, 04:27 AM.

            Comment

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