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?
Was playing LW3 last night and the shooter coil was acting weird and pulsing out, then stayed out on the next ball kick out. Trigger didn't work and then the shooter coil starting smoking a lot and was very hot to touch after opening machine up.
Please help with where I should begin troubleshooting. Is it possible for the coil to just go out? Or possibly something downstream that came loose or blew that would cause the coil to overheat and burn up? I am handy with electrical and can read schematics but have limited pinball maintenance troubleshooting experience. I have a new coil AE 23-800 ready to be purchased but would like to know if I should order the entire kit or just the coil or how to pinpoint other items to replace.
I bought the machine with the duck tape on the diode/cable leads so not sure what the duck tape is for or just preventing shorting against something or breaking off.
All help will be greatly appreciated.