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    Duet wifi : not responding 3.3v LED blink once, wifi not working

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    Duet Hardware and wiring
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    • Milanundefined
      Milan
      last edited by

      Could be short with broken thermistor wire, 3.3v LED blinks once while switching on, then goes off, wifi not working, SD card is working in PC ... 3.3v power rail could be the issue? how do I repair , which are chips needs to be checked or replaced...need help

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      • Milanundefined
        Milan @Milan
        last edited by

        Physically I couldn't see any chip damage / burnout , all looks perfect..
        other 2 LED are lit (+5 and VIN)

        do we need to replace the fuse? / U2

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        • Milanundefined
          Milan
          last edited by

          @dc42 Dear David, pls help

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          • Milanundefined
            Milan
            last edited by

            Made the board working by feeding external 3.3v, solved

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            • dc42undefined
              dc42 administrators
              last edited by

              Is anything getting hot? Check the processor, WiFi module, and SD card in particular.

              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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