Green light off
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@bearer Thanks I will test the circuit and get back. I don't think the prognosis is looking great at this stage. I'm stumped as to what caused this. Most everything was connected and working well. The only thing I've been doing is adding 12v fans.
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@dc42 All the endstops/BL Touch and most other printer hardware were already up and running perfectly. I just added a new 12v fan to cool a peltier module (not hooked up to the duet in any way yet). I did however notice that the micro SD had somehow popped out (god knows how or when). Could this have in some way affected the circuitry?(it sounds ridiculous even as I write it)
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@dc42 I have disconnected all hardware from the duet. I just connected the duet to my laptop and noticed that the green light and the 'diag' red light flicker for about 3-5 seconds then fade to black.
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@genseric said in Green light off:
@dc42 I have disconnected all hardware from the duet. I just connected the duet to my laptop and noticed that the green light and the 'diag' red light flicker for about 3-5 seconds then fade to black.
That sounds as though something is overloading the 3.3v rail. Is anything on the Duet getting hot? The most likely candidates are the SD card, the chip on the Ethernet module, and the main processor.
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@dc42 Nothing is hot. The 2 flickering lights have not come back on at this time either after plugging and unlugging a couple of times
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What's happening is that the laptop is shutting off USB power to the Duet due to excessive load. Try applying VIN power instead, and assuming that the red 5V LED lights up, then see what is getting hot.
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@dc42 This is the only component getting hot
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@genseric that would be the 3.3v regulator, and if it keeps getting hot without the SD card, you could try removing the whole Ethernet module and see if that makes a difference.
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@bearer yeah, you got it bang on first time... and I have removed the ethernet module and the 3.3V light is on again!!! So... I just need to replace the module?
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@genseric i'd test the other features using the usb console and/or PanelDue, then just order a new Ethernet module if everything else is ok.
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@bearer Copy that! I will run some tests tomorrow and report back. Thanks heaps for your help and thank you @dc42. I really appreciate your time. I'm in Sydney and I believe that I bought the last duet 2 stock in Australia. Lets hope I can get a new ethernet module here.
Cheers lads! You rock! -
@genseric said in Green light off:
I'm in Sydney and I believe that I bought the last duet 2 stock in Australia.
ouch, that might delay things a bit. hopefully you can limp along with SD card and USB console or PanelDue until you get it replaced (if everything else works out)
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I thought I'd follow-up on this post as I hate when people leave the thread hanging. I received my new (genuine) ethernet module from the US - I have plugged it in and everything is working as it should be. This is a timely lesson to me as I was getting lazy in turning off my duet when switching out hardware (fans in this case). I think I got off extremely lightly!
Thanks again for the help.
