Hello, I only just found this site today so hope this is where I ask for help.
We are the new owners of this machine and are in the process of cleaning it up. My husband got the lights to work today but we can't figure out what the 3rd light does. The red one lights up when the bonus tray is empty, and one of the yellow lights lights up when you win a jackpot. We can't figure out what the other yellow is for. Can anyone help me ??