There are 2 circuit boards on the computerized Berninas. One is the L-print (on the back of the machine) and the other is the S-print (on the front of the machine), both of which retail for around $300. It's hard to tell which circuit board blew, but I'd bet it's the L-print, as that is the power board. It may be worth it to you to get the circuit board. If you were to put $300 into a new machine, you wouldn't get very much of a machine. Or you could see if your Bernina dealer would take it on trade towards a new Bernina.