Duet 2 wifi not responding at all

danielmar90

@felek Unfortunately nothing changed.

felek

It looks like microcontroller is dead.
AFAIK endstop diodes should be off after power up.
Heater E1 diode is also on (a bit).

Did you have a short?
I ask because maybe U11 chip is broken.

danielmar90

@felek
No. Printer works almost a year.
No issues and no modifications has been made since I've started using it. Just stopped working.

felek

@danielmar90

I have no idea what to do next.

@Phaedrux any ideas?

danielmar90

@felek @Phaedrux
I just found a post where guy had shor circuit on a board and it looks exactly like mine with almost all leds lit, and he's cpu was damaged, but I haven't open a compartment with pcb, and didn't charge anything. Any idea if it is possible that it only could is damaged or something more could be damaged, or how it could happen without touching anything.

felek

@danielmar90

Hard to predict what happend but maybe some fan, heater short.
If you have warranty you don't need to worry but you need to wait for @Phaedrux.

If you don't have warranty you must replace microcontroller but it is very hard to do.

I can do it if you want but it depends which country you are.

danielmar90

@felek I'm in uk. I have equipment for it. And dont have warranty

felek

@danielmar90
I'm from Poland so I can't help you but I thing there is someone who can

There is repair community so you can ask someone
https://forum.duet3d.com/topic/13875/community-repairs

danielmar90

@felek
Any idea if this is correct cpu for duet 2 wifi ??
https://www.mouser.co.uk/ProductDetail/Microchip-Technology-Atmel/ATSAM4E8EB-ANR?qs=rrS6PyfT74fSSfT7W1KkJw%3D%3D

felek

@danielmar90

I think it is correct microcontroller.
Manufacturer number is ok, number of pins also.

@T3P3Tony Am I right?

dc42

The microcontroller we fit is ATSAM4E8EA-AU. Adding an R on the end just changes the packaging to tape & reel, so isn't significant.

The ATSAM4E8EB-AU will probably work too, but we haven't tested it. If you find the same part with U replaced by N, that's OK too.

Edit: it looks like we may have bought up all the available stock of the 4E8EA.

danielmar90

@dc42
I know. I can't get AU anywhere:(