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Williams System 3-7 MPU / Driver Board


Out Of Stock

Brand new and top quality replacement MPU and driver board combo for all Williams System 3, 4, 6 & 7 games EXCEPT Hyperball.

Key benefits over the original 2 board system:

- Eliminates the extremely problematic interconnect connector that fastens the original boards together.

- Eliminates the need to swap out game ROMs.  Game ROMs are selectable via DIP switch.

- Comprehensive on-board diagnostics using Leon's test code via DIP switch

- Uses 6802 instead of 6800 microprocessor.

- Uses a single commercially available oscillator component for timing.

- Uses Williams WPC style controlled lamp circuit design (TIP107).

- Uses Logic Level FET drivers for all solenoids and lamp controls.

- Uses sockets for common failure components (micro, PIA and RAM).

- Uses a low voltage reset to keep microprocessor from locking up.


It will work on the following pinball machines:

Algar, Alien Poker, Barracora, Black Knight, Blackout, Contact, Cosmic Gunfight, Defender, Disco Fever, Firepower, Firepower II, Flash, Gorgar, Hot Tip, Joust, Jungle Lord, Laser Ball, Laser Cue, Lucky Seven, Pharaoh, Phoenix, Pokerino, Scorpion, Solar Fire, Star Light, Stellar Wars, Time Fantasy, Time Warp, Tri-Zone, Varkon, Warlok and World Cup.


It will also work on the following bowling games:

Big Strike, Triple Strike & Pompei