Product ID: RD-MPU327
Rottendog Williams System 3 to 6 MPU/Driver Combo Board

We do not ship Rottendog boards internationally.
MPU327- This board replaces both the MPU board AND the Driver board for ALL Williams System 3, 4, and 6 pinball games.
Williams reference #D-7997, D-7998, D-8113, and D-8161.

Benefits over original Williams MPU and Driver board

- 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, PIAs and RAM).

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

Note: Logic Power connector 1J2 and Display Strobe connector 1J6 will fit incorrectly into each other's spot.  Review wiring before powering up.  THIS WILL DAMAGE THE BOARD.  See secondary picture for clarification.

Algar

Alien Poker

Blackout

Contact

Disco Fever

Firepower

Flash

Gorgar

Hot Tip

Laser Ball

Lucky Seven

Phoenix

Pokerino

Scorpion

Stellar Wars

Time Warp

Tri-Zone

World Cup