I just got my hands on a very, very nice Playmatic Space Gambler. I have everything working great, but one thing...the sound.
It seemed to produce some C3PO Star Wars sounds. But, it seems a little jumbled up and then would just be a constant high pitched tone, like an alarm. So, I have rebuilt the entire Bells Module, minus doing the precision cap and resistors. I also put in a new D flip flop on the driver board....no sounds at all now. Very odd.
Anyone have experience on working on these? Is there a way to test the bells module by stimulating the inputs?