oven controller model 318193201 by spitfire controls?

all I heard was a popping noise and the breaker on the fuse panel blew . I reset the breaker and the oven on our kenmore stove did not work. I checked all the wiring and ohm tested all 3 elements and the temp control and it all seems ok .The elements on the smooth top range all work so I think I have narrowed it down to the oven control board . It costs 384 plus tax so I am kind of hessitant to buy it if there is something that I might have missed checking , any ideas?