Had column problem, battery leakage damage. Replaced CPU board with new rottendog. Also fixed top right switch of mini pf while waiting for board. Previous problems solved. But mini pf motor started failing. Motor has power, fails tests, jerky movements counterclockwise, then stops moving counterclockwise. Sometimes stops turning other way. Optos register in test mode. Flippers work, up - down buttons on coin door work. Bridge board is new and has power. Do optos stop mini pf rotation or is it physical stop by mini pf hitting something? My optos don’t stop motor turning. Everything else -idol- seem fine. Connections look good, solder is new.
Any ideas where to look? Thanks