Williams/Bally Technical Support

System 3,4,6 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 game.

Pinball Software Version Information

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 "1GGG" in the player 1 display, where GGG is the game number. The player 2 display will show the number of the installed game revision.

The ROM file for each game includes only the IC14 Game ROM for each machine. These take the place of the smaller PROM1/2/3 chips that may be installed in your game, with the exception of Firepower, which needs all four chips.

If you install a game ROM for any game except Firepower, you may remove the PROMs in IC21, IC22, and IC26.

Flipper and Sound/Speech ROMs

There are three versions of Flipper ROMs used in early Williams games, White, Yellow, and Green. These ROMs are common between all games of the same Flipper ROM color. You must use the Flipper ROM color specified for your particular game, otherwise the Game ROM will not function properly.

All Sound and Speech ROMs for these games are included with the game ROM file. Not all games use all chips, and the chip size varies per game.

Click Here for a list of ROM Checksums

     algar_l1.zip Revision L-1 game ROM.

Alien Poker
     alpok_l2.zip Revision L-2 game ROM.

     blkou_l1.zip Revision L-1 game ROM.

     cntct_l1.zip Revision L-1 game ROM.

Disco Fever
     disco_l1.zip Revision L-1 game ROM.

     frpwr_l2.zip Revision L-2 game ROM.

     flash_l1.zip Revision L-1 game ROM.

     grgar_l1.zip Revision L-1 game ROM.

Hot Tip
     httip_l1.zip Revision L-1 game ROM.

Lazer Ball
     lzbal_l2.zip Revision L-2 game ROM.

Lucky Seven
     lucky_l1.zip Revision L-1 game ROM.

     phnix_l1.zip Revision L-1 game ROM.

     pkrno_l1.zip Revision L-1 game ROM.

     scrpn_l1.zip Revision L-1 game ROM.

Stellar Wars
     stlwr_l2.zip Revision L-2 game ROM.

Time Warp
     tmwrp_l2.zip Revision L-2 game ROM.

     trizn_l1.zip Revision L-1 game ROM.

World Cup (1978)
     wldcp_l1.zip Revision L-1 game ROM.