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Heater 1 and Fan1 Stopped Working

Scheduled Pinned Locked Moved
Duet Hardware and wiring
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  • undefined
    Sparks
    last edited by 6 Jan 2018, 14:13

    Voltage at board input from PS is 24.29V

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    • undefined
      Sparks
      last edited by 6 Jan 2018, 14:31

      U2 Regulator measures 38C with the Temperature guns Laser centred on it.

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        Sparks
        last edited by 6 Jan 2018, 15:16

        Still cant understand why when I have no thermistor plugged into the H0 Heatbed pins … it reports 25.4C on the display??? Where could it possibly be getting this from.... I would expect a heater fault error and a 20000 display....

        5:15:22 PMM105
        T:26.2 /0.0 27.0 /0.0 26.2 /0.0 27.0 /0.0 B:25.0 /0.0

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        • undefined
          Sparks
          last edited by 6 Jan 2018, 15:21

          This doesn't work either…

          M307 H4 A90 C700 D10 I0 V0 S1.0 ; remapped to heat bed From Duex5 E4 temp sensor
          M305 P0 X4 T100000 B4388 R4700 H30 L0 ; Put your own H and/or L values here to set the bed thermistor ADC correction

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          • undefined
            dc42 administrators
            last edited by 6 Jan 2018, 15:41

            Unfortunately it sounds as though the ADC in the microcontroller may be blown.

            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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              Sparks
              last edited by 6 Jan 2018, 19:44

              Ouch!! Oh well, I shall have to get another board, at least I learnt a bit more along the way 🙂 do you have stock?

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              • undefined
                Sparks
                last edited by 6 Jan 2018, 20:29

                Order placed… and for the new IR probe.

                Thanks for all the help David,

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                • undefined
                  dc42 administrators
                  last edited by 6 Jan 2018, 20:55

                  If you are in the USA, forum user W3DRK may be able to replace the MPU for you.

                  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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                  • undefined
                    Sparks
                    last edited by 1 Jul 2018, 06:43 7 Jan 2018, 06:42

                    Hi Dave,

                    Just checked my original order and it was in September… so I guess it is still under warranty! I am in South Africa, so what do I need to do to claim? I have ordered another in the meantime.... but it would be good to have a spare...

                    Order Details
                    Order ID: #414
                    Date Added: 15/09/2016 Payment Method: PayPal

                    Product Name Model Quantity Price Total
                    Duet Wifi

                    • PreOrderBatch: Batch5
                    • Addon Hardware: PT100 daughterboard
                    • Addon Hardware: PanelDue with 4.3&qu.. DuetWifi 1
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                    • undefined
                      dc42 administrators
                      last edited by 7 Jan 2018, 07:10

                      If it was delivered in September 2016 not 2017 then it is out of warranty.

                      Do you know anyone local to you who can replace the processor? If your soldering skills are good enough you could try it yourself. Use ChipQuik or similar low melting point solder and a cheap vacuum pick up tool to remove the old one. There are videos on YouTube.

                      Btw the more recent Duet versions have improved protection for the ADC.

                      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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                      • undefined
                        Sparks
                        last edited by 7 Jan 2018, 09:19

                        Oh gosh you are right 🙂 sorry late night !! I have dome some SMD repairs before so I will take a look when I remove it. Dot think I have done so many legs before though (older Atmel stuff mostly)

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                        • undefined
                          dc42 administrators
                          last edited by 7 Jan 2018, 09:53

                          The tricky part is removing the old chip without lifting the PCB traces. You need either a good desoldering hot air gun with an appropriately sized nozzle and a vacuum pickup tool, or ChipQuik or similar low melting point solder (and preferably the vacuum pickup tool too). If you succeed without damaging the PCB, soldering the new chip in place is relatively easy if you have a no-clean flux pen, also some solder wick to help remove the inevitable solder bridges.

                          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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                          • undefined
                            Sparks
                            last edited by 7 Jan 2018, 19:46

                            Thanks Dave I will give it a whirl after I have my new one fitted

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                              Sparks
                              last edited by 17 Jan 2018, 11:59

                              Dave can you point me in the direction of a source for the SAM chip?

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                              • undefined
                                dc42 administrators
                                last edited by 17 Jan 2018, 12:10

                                @Sparks:

                                Dave can you point me in the direction of a source for the SAM chip?

                                Not without knowing which country you are in. Here in the UK, Farnell, RS, Mouser and Digikey all sell it.

                                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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                                • undefined
                                  Sparks
                                  last edited by 17 Jan 2018, 16:20

                                  Thanks In in South Africa, we have RS locally so will try them. I see there are a few variants does this one look suitable?

                                  ATSAM4E8EA-AU

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                                  • undefined
                                    dc42 administrators
                                    last edited by 17 Jan 2018, 20:10

                                    Yes that's the correct one.

                                    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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