So, I have replaced the transistor, coil and resistors and it worked great for 2 days. Then all of a sudden when playing the launcher would not launch the ball any longer. I checked the coil through the DMD and coil test. It is not firing the coil. I checked the fuse and it is still good.
Any ideas on how to proceed with fixing this? What would cause the transistor to go out again if that is the problem?
Thanks to all for any recommendations.