The problem with "Minolta's" capacitors is primarily with later X-cameras -- after the XK, XD, & XG series -- when manufacturing was moved in China. If the OP follows my inscrtuction above:
Try this. Remove the battery and re-install it. Turn the camera on. Lightly press the shutter release halfway. Does anything light up in the viewfinder????.
It will be easy to see if the capacitor is the problem. Usually, the shutter will not fire with a bad capacitor -- not enough electricity for the shutter to fire.