Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Component U3 on a Duet WiFi 2

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
    2
    3
    77
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • FelixHundefined
      FelixH
      last edited by

      Hi all,

      recently a Duet WiFi 2 Board died on me (full disclosure, a clone board). I traced the problem down to the component U3, which was getting really hot when powering the board with USB (with Vin, the board was totally dead).

      Does somebody know what this component does and if I could get a replacement somewhere?

      Thanks in advance!

      IMG_2800.JPG

      droftartsundefined 1 Reply Last reply Reply Quote 0
      • droftartsundefined
        droftarts administrators @FelixH
        last edited by

        @FelixH It is the 5V regulator. See https://docs.duet3d.com/en/User_manual/Troubleshooting/Parts#voltage-regulators-1

        U3 - 5V Duet 2 WiFi / Ethernet / Maestro: A4403GEUTR-T (tricky to solder QFN chip)

        Ian

        Cartesian bed-slinger with Duet 3 Mini 5+ WiFi and 1LC : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 3 MB6HC and Roto toolboard

        FelixHundefined 1 Reply Last reply Reply Quote 0
        • FelixHundefined
          FelixH @droftarts
          last edited by

          @droftarts ok, so a 5v voltage regulator. Makes total sense that the board doesn't work if it is broken. I will try to get a replacement and hope for the best

          thanks!

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Unless otherwise noted, all forum content is licensed under CC-BY-SA