Heres what the relay stacks on the score motor do.. this might well help you... ill post some pics later of inside the machine so you know what relay is which inside.. this should give you the info you  need to get her going



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Thinking on one of your last posts - no solenoids firing - could be because start up is not completing, or,if no power at coils in game mode then check "HOLD"relay - one of the switches here should have the leaf switch that supplies power. If power there, but no firing then youve lost ground.. flollow this through for broken contact/ wire... this is all of course assuming that fuses are good etc