Possibly damaged board?



  • I've had my employe install the duet wifi with a duex2. Duet was previously working.

    Problem i'm getting right now is i need to plug the Duet with USB in order to get 3.3v and 5v. I've checked fuse on it and unplugged everything to see if i had a possible short and no luck.

    If i power up the Duet strictly on 12V from PSU i don't get the red/green less to light up. If i plug USB i get a normal behaviour.

    Any ideas?


  • administrators

    1. Is the INT_5V_EN jumper fitted on the Duet?
    2. Is there any sjgn of damage to the small square chip labelled U3?


  • David,

    There is a jumper on the INT_5.

    The small U3 chip appears to have a small "bump" on it. I'd say it does looks lightly damaged



  • 0_1554664261369_IMG_0170.jpg


  • administrators

    I agree, it looks damaged. If it's a genuine Duet, that's covered by the warranty, so ask your supplier to repair or replace the Duet.



  • David,

    It is a genuine one. However, clearly my employee screwed something up while installing the thing. I wonder what he did...


  • administrators

    @3d_low said in Possibly damaged board?:

    David,

    It is a genuine one. However, clearly my employee screwed something up while installing the thing. I wonder what he did...

    He didn't necessarily screw up. Is it a Duet 1.04, and are you using 24V power?



  • 12V power, 1.04.

    Like i said, the board was working fine until the DueX was added. I've looked over the job when i was programming the Duex2 outputs and saw various corners rounded, damaged connectors and wires improperly crimped which leads me to believe it's a screw up.

    Can I just run it off USB power for the moment until I get it fixed?


  • administrators

    Yes you can use USB to provide the 5V power. I suggest you remove the jumper on INT 5V EN.



  • Thanks David for the answers.

    Getting an answer for a problem like this on a Sunday... Guess this is why i'm at my 5th board from you guys 😉 Much appreciated


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