No Power to the Motherboard in Husqvarna Long Arm?

I have a Husqvarna Mega 18 x 8 Quilter that turns out to be nothing more than a tin lizzie. I had thread to hang up in the bobbin cace and I turned it off and removed the thread. When I turned it back on it started powering up as it is suppose to do, but all of a sudden it went completely out, like the power had gone out. I had an electrician come out and check my outlets for any issues and he put a meter on the mother board. The cord is hot up to where it goes into the mother board. There is no one near me that works on this machine, I'd have to take it to another state. I feel this is a mother board issue. Any help is greatly appreciated.