@phaedrux just let me know if you want a close look at any specific part of the board, and I will get another image to you quickly. Here are some shots from different angles that should do the trick:

@phaedrux can you please boost me to a 1 reputation so I don't have to wait 60 secs between posts?

@phaedrux

Just for the forum/record I removed the strand of wire, dusted with compressed air, reconnected all the cables and powered up the D3/Pi. I still have 3.8 at v12, and V_fused my LED is not lit.
@phaedrux

@phaedrux It is- wow, good eye. I had to really look for it. I have removed it, but I wonder if it was having any effect. Can I plug everything back in and see if there is any change?

and again, I will gladly visit a specific spot on the board if you would like.

@phaedrux

@phaedrux

@phaedrux can you please boost me to a 1 reputation so I don't have to wait 60 secs between posts?

@phaedrux just let me know if you want a close look at any specific part of the board, and I will get another image to you quickly. Here are some shots from different angles that should do the trick:

@phaedrux Yes, absolutely, but I am not at home at the moment. I will put it on a contrasting background and take several shots with different lighting at the highest resolution I can to get the final under the upload size cap. It might be few hours, though.

@droftarts I pulled each of the two blue blade fuses by the shielded power strip, tested each for continuity, and both passed. Are there test points where I could get meter readings that would help in your diagnosis?

@phaedrux oh, and the duet 3 is powered by a 12v 360w psu.