Effective 12/21, I've had to change my Return Policy to Returns Not Accepted. Too many people were buying boards to "test" theirs, and in some cases ruined the new board in the process. In ANY case, I cannot accept returns any more because of the possibility of damage, and once opened, the board is no longer new.

Please verify the board is correct for your machine and is what you want and need. Games are listed below that are supported by this board. Replacement boards will not fix a problem in your game if the problem is elsewhere. In the rare case a board is defective, it will be repaired or replaced by the manufacturer. The biggest problem encountered with this board is people pushing the ASIC in too deep, it should be flush with the socket.

Brand new board from Rottendog.

Please note: You must swap over & install the ASIC chip U9, 6809 Processor U4, Security chip and game ROM U6 or purchase separately

This board is a plug and play replacement for the original Bally/Williams WPC-S Security MPU processor board. This board replaces Bally/Williams part number A-17651-xx (where xx is the game number). Includes a remote battery holder. 

Key Benefits Over Original / Replacement Boards

- Remote battery holder (no future acid damage).

- ZERO surface mount components.  

- No custom components.

- Socketed through hole connector for RAM Chip.

- All new (not 20+ year old) components and PCB

- All of our components match the original schematic component designators, so you can troubleshoot with the original schematics or our schematics!


Used in the following Bally / Williams Pinball Games:

    • Corvette
    • Dirty Harry
    • Indianapolis 500
    • Jack-Bot
    • Johnny Mnemonic
    • No Fear
    • Red & Ted’s Road Show
    • The Flintstones
    • The Pinball Circus
    • The Shadow
    • Theatre of Magic
    • WHO Dunnit
    • World Cup Soccer

    • Plenty more parts available from Big Daddy Enterprises!

    .