Search Disc ( bingo )

 

A large unit inside the game that is used to detect winning combinations. It works by controlling a set of five or more search relays. As the unit operates, it closes the search relays when balls are in the particular holes it is looking at. If the correct number of search relays are closed, the search stops and payout circuits are activated. After payout completes, the search continues for more paying combinations. Higher payouts can actually get broken into two pieces - payout for a 3-in-line, a pause, then the remainder of the payout for a 4-in-line or higher.