DueX5 issue on PWM/Servo Headers
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I have a Duet Wifi with a DueX5 in a Bigbox 3d printer, updated to Reprap 3.X I forget the exact revision. Using a BLTouch and everything has work for years.
BLTouch stopped working, Checked wiring for a break, even tried hooking a spare BLTouch I had directly to the board without luck.
To make a long story short it seems the 5v pin is dead on all the PWM/Servo headers on the Duex5. I checked the 5v on the Duex5 GPIO header and it was fine. So I temporarily pulled the 5v pin out of the BLTouch cable connector and ran a jumper to it from the 5v GPIO pin, connected the rest of the cable back to PWM1 and the BLTouch works fine.
So my question is, any idea how the 5v to just the PWM Headers could be dead? Is there a fix I could do without extracting the whole board from the printer (it will be quite a chore)
EDIT I just seen the thread about the 5 volt jumper, I will check the 5volt jumper when I get home, I am inclined not to think its the jumper as I see it unlikely the could have fallen off as this was all working but will double check.
https://forum.duet3d.com/topic/10654/bl-touch-and-the-duex-5/67
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It could be a 5v regulator has failed. Would be hard to determine let alone fix without taking the board out.
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@Phaedrux is there a circuit diagram that shows what 5v regulator feeds the PWM headers?
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Well I am dumb the 5V jumper was missing. I have absolutely no idea how the jumper could have vanished off the board. When I looked to see if the jumper was there the first time I accidently looked at the wrong jumper...
I if found the github for the schematic, there is no regulator. If your using the 5v off the wifi it is directy feed off the jumper.
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undefined Phaedrux has marked this topic as solved
