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    Duet 2 Ethernet isn't respond

    Duet Hardware and wiring
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    • pekhterev.e
      pekhterev.e last edited by

      Hello.
      When first started with the power supply, motors, fans and Ethernet connected, it didn’t work, the Atmel CPU was very hot. What could happen and is it possible to fix something? Could statics damage the board?

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      • dc42
        dc42 administrators last edited by

        If the MCU is very hot that's usually a sign that it has been damaged, probably by excessive voltage on the 5V or 3.3V rail. It's unusual for modern electronics to be damaged by static, but not impossible.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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        • pekhterev.e
          pekhterev.e last edited by

          Thanks for reply.
          Is it enough to replace MCU and program board like described in Fallback procedure #3 in case other circuits are not damaged?

          T3P3Tony 1 Reply Last reply Reply Quote 0
          • T3P3Tony
            T3P3Tony administrators @pekhterev.e last edited by

            @pekhterev-e frequenty if there has been a high voltage applied to the 3.3V rail, more than just the MCU is damaged.

            Duet Hardware Designer
            www.duet3d.com

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            • dc42
              dc42 administrators last edited by

              Were you able to communicate with the Duet before you connected the motors, fans etc. ? Is there any sign of damage to other chips, in particular U2 and U3? Is anything else getting hot?

              Is it a genuine UK-manufactured Duet?

              Duet WiFi hardware designer and firmware engineer
              Please do not ask me for Duet support via PM or email, use the forum
              http://www.escher3d.com, https://miscsolutions.wordpress.com

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