I am a new TZ owner (yeah!) but, the machine has a problem just a few weeks after bringing it home. (Boo!)
When I press the start button for a new game, the machine immediately cycles through firing all the flippers and solenoids (as if it were trying to shake balls loose). All six balls are loaded and in the through or around the outhole. The machine does not try loading balls into the gumball machine.
In test mode, I can successfully cycle through the gumball test - all the switches and solenoids work fine and in sequence for loading and dispensing balls from the gumball machine. I have tested all the individual switches as well a few times. For sure all the through and outhole switches work.
My best guess is that the CPU is not processing the switch information correctly (although it will display switch state in test mode). Could that bee? Any suggestions on how to proceed? Really stumped.