Just turned on my STTNG and the canons just kept cycling round and round until they faulted out. Went into test mod, they test fine for switch activation showing closed and closed when reaching the park position and showing open and open when moving off.
Also found that if you press play button, it will pop all of the balls into the launch area, crowding them up on top of each other. Again, go into test function, check all trough switches and ball launch switch, all working perfectly. Drop a ball down the hole, and watch them all get switched as the ball passes.
Checked all ribbon connections, as have encountered that before. All seem ok, plus the tests work perfectly.
Any clues most welcome.