3.3 volts LED indicator doesn't lit

ardisf

Hello,

i own a Duet 2 WiFi, i assumed i shortend the "always on" fan.
and right now, 3.3 volt LED indicator in my Duet doesn't lit. it makes motor LED indicator and WiFi LED indicator doesn't work.
is there any way to fix my duet?

Thanks.

droftarts

@ardisf follow the instructions here https://docs.duet3d.com/User_manual/Troubleshooting/Duet_wont_respond and see how far you get.

Post a good, high resolution picture of your Duet board.

Most likely the 3.3V voltage regulator has failed, but it could be other parts too. For replacement parts to fix it yourself, see https://docs.duet3d.com/User_manual/Troubleshooting/Parts#duet-2

Ian

RogerPodacter

@droftarts thought of an idea, could we upgrade the 3.3v regulator to a higher amperage version with the same footprint? as long as heat dissipation is not an issue, the Duet 3 Mini 5+ could maybe upgrade to 1.5 or 2 amps?

droftarts

@RogerPodacter do you need mor 3.3V current? What are you trying to connect? Or so that it survives if there is over voltage? I think the problem with that is then other things connected to 3.3V are more likely to fail, eg SD card, WiFi module, and main processor. Better to replace with stock.

Here is your post from the other thread, showing the damage:

can I desoldering regulator 3.3 volt duet 2 wifi? because it was burned out.

Ian

RogerPodacter

@droftarts sorry i was unclear. i was thinking of increasing the 12V or 5V amperage so that i could run a bit larger fans, peripherals etc. i should not have specified 3.3v. the 3.3v logic i have no issues obviously.

jaxon878

@ardisf said in 3.3 volts LED indicator doesn't lit:

i own a Duet 2 WiFi, i assumed i shortend the "always on" fan.
and right now, 3.3 volt LED indicator in my Duet doesn't lit. it makes motor LED indicator and WiFi LED indicator doesn't work.
is there any way to fix my duet?

Yes, it is possible to fix your Duet 2 WiFi. The first step is to check the power connections and make sure everything is connected properly. If the connections are good, then the next step would be to check the firmware and make sure it is up to date. If the firmware is up to date and the power connections are good, then you should check to see if the main board and other components are working properly. If anything is not functioning correctly, then you should replace the faulty part. Finally, you should check to see if the shortening of the "always on" fan could have caused any damage and if so, replace the damaged parts.

ardisf

@jaxon878 thank you

ardisf

@RogerPodacter thank you