[tr6scott]

If out of warranty, there you can look at the circuit board, by the power supply connectors there is a board mounted fuse there. you can apply power, and see if you have power on one side and not the other. I think the board nomenclature made this pretty obvious too, like labeled something like "F1". We have revived two cRio's by piggy backing a second fuse on top of the blown one. Fuses were found at mouser.

I don't have the details, one of the mentors that does electronic repairs for a living, had some in his car that were close enough in size, and we used those, but I did find the right size and form factor at mouser.

If needed I could probably open one up and take a pic, we had the students do the solder job, with his oversight, so it isn't pretty.

Just know even if it is not under warranty, with very little time and expense, it can be brought back alive.