Duet3 6HC 12V Buck Converter Broken

PrintingTux

Hello friends,
I wanted to upgrade from Duet 2 to Duet 3 6HC. I've created all of the adapters and started remodeling. When testing the motors, I get the following error message.

Error: Attempt to move motors when VIN is not in range

I run the system at 24V, this is correctly displayed under Vin, v12 shows a voltage of 1V. All LEDs except for 12V light up. Out 4-9 have no 12V Jumpers set. Therefore I suspect a problem with the Buck Down Converter U14.
v12 1.0V
U14_Buck_Converter

I don't need 12V with my system, can I deactivate it? GCode, jumpers or soldering?
I can't find additional Information in the dokumentation.
Wiring Diagram
Hardware Overview - 12V

The broken module "TS30041-M000QFNR" is difficult to obtain, as is the successor "TS30042" with 2A (is it compatible?).
It would be nice to have a replaceable fuse for this section.

friendly regards

Phaedrux

The driver chips require the 12v supply to operate. It would seem U14 has failed.

Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.