Williams/Bally Technical Support

Pinball Home | Tech Support | By Game | By Date | ROMs | Early Bally ROMs

Early Bally 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.

Welcome to the official Williams/Bally "old Bally" software repository!

Throughout history, early Bally software has been a confusing mess of jumper charts and arcane part numbers. We've set out to fix all that with a new and improved confusing mess of jumper charts and arcane part numbers! (Actually, we hope it's not quite so confusing as before.)

The goal of this software repository is to have everything needed for a specific game all located together in a single archive file per game. This includes the latest known software for MPU and sounds, the correct jumpers to install, and any other important notes.

A few shortcuts have been taken to try to minimize the complexity. All early games are assumed to be using an AS-2518-35 MPU board, even if the game originally shipped with the AS-2518-17. All jumper settings assume you are programming all new chips in EPROM form; they are not correct for games using any of the original masked ROM chips. All MPU applications that use a 4K chip assume a 2732, because those are far easier to obtain now than the 2532's originally specified by Bally in their jumper charts. (Sound boards that use 4K chips list jumpers for both types, since the original chips are often 2532's which could be reprogrammed and reused on the same board.)

In the various game archives, the filename extensions indicate the size/type of ROM to burn:

	.123	82S123/74S188 (32x4 PROM)
	.474	74S474/7461 (512x8 PROM)
	.716	2716 (2Kx8 EPROM)
	.532	2532 (4Kx8 EPROM)
	.732	2732 (4Kx8 EPROM)

To cover the needs of those who need more general information, we also have the following text files for download:

bally_read1st.txt: contains this introduction, plus general jumper info
bally_readall.txt: all of the individual game README files in one file
bally_matrix.txt: the individual game README info in table format

We also have some original Bally service information in image format, like the nearly mythical F.O. 597, which describes how to modify an early -17 MPU to drive the electronic sound board in later games.

Our attempts at ensuring the quality of this data include: -- Using original Bally data, cross-checked against other sources
-- Using the latest revision that could be found
-- Spot-testing on several older games

While we're confident of the quality of this data, understand that we simply cannot test all of this data ourselves. We don't have all of the games, nor enough hours in a day. We welcome feedback on any errors; any newer versions out in the field (usually, but not always, identified by a higher value for "YY" in the part number format of "XXX-YY U#"); any ways to present the data more clearly; and any ways to make this repository more useful.

BIG DISCLAIMER SECTION

WMS is making this historical data available for the benefit of fans and owners of its older pinball machines. It is not WMS policy to officially support games this old, but we like to help out where we can. Because of the age of this data and the lack of facilities for exhaustive testing, WMS can make no guarantees whatsoever about its correctness. Use it for what it's worth, but if it doesn't fix your machine, don't call us. If it breaks your machine, don't call us. If it makes you gain weight and gets your dog run over and makes your pickup truck rust, you may well have a career in country music, but still don't call us. In other words:

WMS ASSUMES NO LIABILITY OF ANY KIND FOR THE ACCURACY OF THIS DATA, OR LACK THEREOF. IT IS PRESENTED AS-IS, WHERE-IS, AND WITHOUT WARRANTY.

This data is intended for use by those who have the technical knowledge and skills to make use of it. It is assumed that you can program EPROMS and change soldered-on jumpers and all of the other things necessary for this kind of work. If you don't know if you have the necessary skills, trust us you don't. Find someone else to do the work for you, it will be much cheaper in the long run than repairing a damaged board. In other words:

WMS ASSUMES NO LIABILITY OF ANY KIND FOR DAMAGES INCURRED IN THE USE OF THIS DATA. WMS CANNOT OFFER ANY SORT OF TECHNICAL SUPPORT TO THOSE WANTING TO USE THIS DATA. IF YOU DON'T KNOW HOW TO USE THIS DATA PROPERLY, DO NOT USE IT AT ALL.

(We don't like shouting, but it's important that this nice gesture on our part not end up being something we regret doing. Use it, be happy, and we'll keep doing nice things like this!)

Baby Pacman
	BABYPAC.ZIP	All ROMs.
Black Jack
	BLACKJCK.ZIP	All ROMs.
BMX
	BMX.ZIP	All ROMs.
Centaur Centaur II
	CENTAUR.ZIP	All ROMs.
Dolly Parton
	DOLLYPTN.ZIP	All ROMs.
Eight Ball
	EIGHTBLL.ZIP	All ROMs.
Eight Ball Deluxe Eight Ball Deluxe Limited Edition
	8BALLDLX.ZIP	All ROMs.
Elektra
	ELEKTRA.ZIP	All ROMs.
Embryon
	EMBRYON.ZIP	All ROMs.
Evel Knievel
	EVELKNIE.ZIP	All ROMs.
Fathom
	FATHOM.ZIP	All ROMs.
Fireball II
	FBALL-II.ZIP	All ROMs.
Flash Gordon
	FLASHGDN.ZIP	All ROMs.
Freedom
	FREEDOM.ZIP	All ROMs.
Frontier
	FRONTIER.ZIP	All ROMs.
Future Spa
	FUTURSPA.ZIP	All ROMs.
Harlem Globetrotters
	HGLBTRTR.ZIP	All ROMs.
Hot Doggin'
	HOTDOGGN.ZIP	All ROMs.
Kiss
	KISS.ZIP	All ROMs.
Lost World
	LOSTWRLD.ZIP	All ROMs.
Mr. & Mrs. Pacman
	M_MPAC.ZIP	All ROMs.
Mata Hari
	MATAHARI.ZIP	All ROMs.
Medusa
	MEDUSA.ZIP	All ROMs.
Mystic
	MYSTIC.ZIP	All ROMs.
Nitro Groundshaker
	NGNDSHKR.ZIP	All ROMs.
Night Rider
	NIGHTRDR.ZIP	All ROMs.
Paragon
	PARAGON.ZIP	All ROMs.
Playboy
	PLAYBOY.ZIP	All ROMs.
Power Play
	PWERPLAY.ZIP	All ROMs.
Rapid Fire
	RAPIDFIR.ZIP	All ROMs.
Rolling Stones
	ROLLSTON.ZIP	All ROMs.
Skateball
	SKATEBLL.ZIP	All ROMs.
Silverball Mania
	SLBMANIA.ZIP	All ROMs.
Six Million Dollar Man
	6M$MAN.ZIP	All ROMs.
Space Invaders
	SPACEINV.ZIP	All ROMs.
Speak Easy
	SPEAKESY.ZIP	All ROMs.
Spectrum
	SPECTRUM.ZIP	All ROMs.
Supersonic
	SST.ZIP	All ROMs.
Star Trek
	STARTREK.ZIP	All ROMs.
Strikes & Spares
	STK_SPRS.ZIP	All ROMs.
Vector
	VECTOR.ZIP	All ROMs.
Viking
	VIKING.ZIP	All ROMs.
Voltan
	VOLTAN.ZIP	All ROMs.
Xenon
	XENON.ZIP	All ROMs.