Following breakage of the right-hand drum support spring, as a result of serious overloading, the fuse blew. I have replaced the drum spring and the fuse but the machine appears electrically "dead". Power is reaching the switch/indicator panel bit nothing lights up, including the LED display. Without wiring diagrams it is well-nigh impossible to go further and any assistance will be most gratefully accepted. Many thanks.

John, March 2013

sounds as though you have a blow on a circuit of the pcb, worth taking apart and inspecting, make a note of the push on connectors when removing as it makes for easier re assembly, if you find a damaged circuit resoldering may fix it if components didnt get damaged as well

keymatic irl., March 2013