Williams/Bally Technical Support
System 9 ROM Information and Upgrades
ROM revisions for select games are maintained on-line and can be downloaded.
See EPROM Programming Information on how to use Pinball Software downloads to burn new ROMs for your game.
Click on history for ROM revision history.
Click on the ROM image name to download a copy of the ROMs for a specific
Pinball Software Version Information
- System 9 games have the software revision identified with an "L" to
signify the Level of software release. To see what version your game is
running, set your test switch to AUTO/UP and press ADVANCE while in Game
Over mode. You will see "2GGG" in the player 1 display, where GGG is the
game number. The player 2 display will show the number of the installed
- All Sound and Speech ROMs for the System 9 games are included with the game ROM file.
Not all games use all chips, and the chip size varies per game.