Help with payout on old machine.


New member
Aug 13, 2019
Hi .. i just bought my first slot machine .. its an older late 70s Chinese big bang .. It takes quarters and tokens , however the guy who sold it to me said he made it take quarters by adding a metal guide to the top rail so the thinner quarters are accepted instead of falling into rejection bin.

the issue is with payouts .. when you win it will count out the perfect amount of tokens if that's all that is in the machine. if theirs quarters it will add them in with the tokens and if its all quarters it will payout until the machine is empty and goes into an error mode. its not recognizing the quarters obviously .. any ideas as to where the checking is taking place? i haven't had any time to mess with it , its prolly a winter project but research is good! ..

thanks for any insight.
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