on my hatachi cw40 scroll saw, i think the speed control board has gone bad. recently lost a lot of electronics due to a lightning strike near by, pickup electronics, totaled the pickup, computer, telephone, printers, router speed controlls. when i disconnect the scrollsaw motor the circuit breaker still trips on the saw. i hate to order this part if it is not out, cost too much and if it doesnt fix it then a waste of over 100 dollars any one got an idea how to tes