Hi jimdanforth
welcome to pinside. Great, "the fuse" You have fiured out.
The problem "One points" - we should look at the schematics. General - the wiring of 1-Point-Relay and 1-Point-Score-Drum is: The I-Point-Relay actuates and closes a switch on its switch-stack --- SELF-Hold-Current flows --- I-Point-Relay stays pulling UNTIL the Score-Drum moves the plunger (to then turn the drum) --- the moved plunger on the score-Drum OPENS an so-called E.O.S (End-of-Stroke) - Switch - this opening cuts the "Self-Hold-Circuitry on the 1-Ponts-Relay" --- look for the moved plunger - DOES the plunger moved truely opens the EOS-Switch ? Greetings Rolf