Rottendog Amusements

We are THE Lowest Cost Providers of Replacement Pinball Circuit Boards in the World!

* All of our Boards are Complete Redesigns of Originals *

MPU326 - Williams System 3, 4 & 6 Combination MPU & Driver Board

Note:  Does NOT yet support System 7 Games!

This board replaces both the MPU board AND the Driver board for ALL Williams System 3, 4, &6 pinball games.

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 http://www.flipper-pinball-fan.be/

- 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 single shot (70ms) for Special Solenoids (no more burned board due to shorted contacts

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

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

This game does use custom software that is NOT compatible with your original game's board set.  Updates to this software will, I'm sure, be modified over time and updates will be made available though this web site.

To view the latest install and testing instructions, click here - Last updated 1/29/2010

Latest software version is MPU326-AC.  To download this version, click here.  To see the software version history, click here.

Game Listing

Pricing

Note 1:  Shipping and Handling charges are for Continental USA locations via USPS Priority Mail with Delivery Notification.  We will gladly ship worldwide;  However, contact us prior to your purchase to get non-continental USA shipping charges.

Note 2: Shipping and Handling charges are reduced for multiple item purchases.  Typically the above mentioned price is good for up to one pound package.  Please contact us with multiple order quantities to get a reduced S&H quote.

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Last modified: 07/22/09