I posted the full schematics 2 posts back, but I'm working on the startup. Let's simplify things.
I've taken the schematics and edited it down to just the relays used in startup.
GONE: All lights, transformer, scoring, chimes, flippers, replay, etc.
ADDED: all useful relay labels
|CLICK TO EMBIGGEN!|
I also received the suggestion to work to isolate the problem, so I disconnected the coin door, the back box, and the playfield. Same issue continues: the motor still runs.
but at the very least, we know the issue is now down in the box.