Need Schematic for ASUS ROG GA401IV-BR9N6

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  • tlough75
    Member
    • Apr 2017
    • 33
    • US

    #1

    Need Schematic for ASUS ROG GA401IV-BR9N6

    Hello, I have a 14" ASUS ROG Zephyrus GA401IV-BR9N6 that has a blown inductor that goes to pins 1-4 on the EDP panel connector and am trying to figure out the value so I can replace it.
  • mrkmpn
    Senior Member
    • Apr 2022
    • 58
    • United States

    #2
    Re: Need Schematic for ASUS ROG GA401IV-BR9N6

    Did you ever find a solution to this?

    Comment

    • oddbondboris
      New Member
      • Jun 2011
      • 9

      #3
      Re: Need Schematic for ASUS ROG GA401IV-BR9N6

      this is pretty close, ga401ih, i found it to be close enough
      also a png of a boardview i can't find anything better for free online. it's enough to kinda get the idea of where all the inductors are and what the differences are

      strange to find something for asus that isn't in fz format though

      as for your original question, it looks like l4502, all the schematic says is 120ohm no current rating but that makes no sense as the thing would be dropping nearly all the voltage and while inductors often specify dcr on the schematic they never just specify that
      elsewhere it says panel imax 0.485A and shows either a current limited power distro switch or a plain 1.5A fuse in series with the inductor so i'd think it's actually something like a 120uH 5A inductor
      Attached Files
      Last edited by oddbondboris; 12-07-2022, 06:00 PM.

      Comment

      • piernov
        Super Moderator
        • Jan 2016
        • 4435
        • France

        #4
        Re: Need Schematic for ASUS ROG GA401IV-BR9N6

        SMD ferrite bead, 120 ohms is impedance at 100 MHz. Current rating is important too but not specified here, with a fuse in series it should be higher than what the fuse is rated for.
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • m1ch43lzm
          Badcaps Veteran
          • Mar 2019
          • 252
          • Peru

          #5
          Hi, I'm uploading here what i found so far
          Schematics+ board pdf for GA401IH (first page also says GA401IV GA401IU )
          Board view .FZ for GA401II

          The .pdf on post #3 "disappeared"
          Attached Files

          Comment

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