So I did look at this tonight and it doesn't seem to matter. I offset the disc by one rivet in the reset direction but no change in behavior. The 1000s unit does not get driven to zero and, of course, the first pass to 10K no longer lights the score lamp as the unit is 1 rivet off zero.
Since other Bally schematics are online at IPDB, I'm going to post the full one here as I see no other way to get advice on the machine.
I've got, as best as I can tell right now, 2 possible issues: The 1000s unit does not get reset to zero on game start (maybe it isn't supposed to) and the clock device does not kick off the Hold Relay (maybe it isn't supposed to).
I am having a devil of a time following this schematic so if anyone has any insights on these 2 things, I'd certainly appreciate it. I've also asked in my thread over in the EM Hangout section if anyone knows anybody who has a working example who might be able to tell me what the proper behavior is.
Some possibly important data points: the Hold Relay has a small trip coil associated with it that fires a plunger that breaks the switch connection that holds the main relay in. This works fine with the Tilt switches so the little coil is good. I don't see how the Clock Switch has anything to do with this coil though, and thus I don't see how it could disengage the Hold Relay.
On game start, the score motor does not run. I am not sure if it should.
On game start, the Hold relay does pull in on the very first game after plugging the machine in and cycling the timer bar. On the schematic, this is the Holding Relay Reset switch and it closes when the timer bar is pushed forward by the coin slide and opens again as the coin slide is retracted.
The Score Reset Switch also cycles with the timer bar and resets the 10K Unit.
Thanks for any advice or suggestions. I'm at my wit's end.