Williams ROMS Burning

Bishopx

Permanently Banned for creating a second account t

Donor 2011
Joined
Aug 3, 2011
Messages
398
Reaction score
1
Location
Newhall, California
I would like to learn to burn my own ROMs for my Williams games. I have several ROM boards that are not populated and would like to fill the sockets. Can anyone give me some basics of what to purchase as far as a programmer and chip types?

I have programmed and burned Basic Stamps and PICs. Is it similar in complexity?
 
You really need to know, from what I have read, what the chips are. Many of the older chips will not program with newer programmer. My Galaga usese the 2732a which is a pain. Many times a chip substution and various programming steps will work.

Also is this for pinball or video game?

Some people prefer this one for eproms but you really need to be shure it will program the chips you need.

Channelmaniac can program most chips (eproms,proms) from what I have read and he could answer this question for you.
 
If you are doing just eproms the willem GQ-4X does a great job on most eproms used in arcades. You can pick one up new for about 100 bucks.
 
I'd like to burn new proms for my Robotron, Stargate, Defender and Joust machines. I have extra prom boards that have missing and failed proms.

I've got to ask because I'm sure I sound stupid in my post and my new response....

What are the differences between eproms, proms and roms?
 
ROM is the acronym for Read Only Memory.
PROM is the acronym for Programmable Read Only Memory.
EPROM is the acronym for Erasable Programmable Read Only Memory.
EEPROM is the acronym for Electrically Erasable Programmable Read Only Memory.

The very first ROMs were actually built in the silicon the same a logic chips. They did away with those pretty quickly as they were very limited in memory size and horribly expensive to produce. PROMS replaced ROMs but they can only be programmed once. EPROMS are erasable by exposing the quartz window to UV light of specific frequencies allowing them to be erased and reused. EEPROMs are erased by passing an electrical charge through them which erases them and allows them to be reused.

ken
 
I'd like to burn new proms for my Robotron, Stargate, Defender and Joust machines. I have extra prom boards that have missing and failed proms.

I've got to ask because I'm sure I sound stupid in my post and my new response....

What are the differences between eproms, proms and roms?

The only stupid questions are the ones that never get asked.

eproms are Erasable Programable Read Only Memory.
Prom Programmable Read Only Memory
roms Read Only Memory

Most arcade games use the eproms. They usually have a sticker on them with some type of info like location or program code. They can be erased with uv light and reprogrammed.

Also, There is much info in this section on the top in a stickey it is very good reading when you have the time.

Now that u r a member you can do a search up at the top near the blue section under private messages. If there is anything you don't understand read as much as you can, do searches, and ask questions.
I am learning about monitors by reading others posts and the stickey before I relly decide to jump in. My problem is screen burn in and want to replace the tube, but that is for the monitor section and a much later date.

Welcome and have fun.
 
As others have stated...

ROM : Can not be programmed. Created as-is from factory

PROM = Can only be programmed ONCE. Once programmed they can not be changed.
They are usually smaller (in size and memory space) than eproms, but faster

EPROM = ERASABLE PROM . Can be re-used if you erase them by shining a UV light
through a small glass window in top of the chip.

E-EPROM = Same as EPROM, but can be erased by electrical voltage.
(ie. this means you can re-program them without needing a UV lamp )


For Williams games, most eproms are 2732 chips.
The sound boards however user 2532 eproms.

Just about every programmer will do those eproms.

However, if you want to do proms, you'll need a more specialized programmer,
...and usually an older model (circa 1980-1985)

The Data I/O 29B will do just about any chip from the 80's,
but it's a temperamental beast and hard to find a reliable working one.
(...I've had 4 before finding one that worked well )

Good luck.

Steph
 
Flash roms are where a bunch of roms show up at a location at a pre-selected time, and start singing and dancing around the other roms.
 
LOL. Thanks for the clarification.

Is there a place to download the Williams games Eprom files?
 
LOL. Thanks for the clarification.

Is there a place to download the Williams games Eprom files?

The most common source is MAME distributions. You just need to be very careful as these are frequently the same ROM images known by different MAME names.

ken
 
I downloaded some of the roms from a site. Blue label, yellow label, red label, etc. I'm going to search for a programmer. If you guys know a good place to buy one, please let me know.

What is a good source for the eproms? 2732 and 2532
 
I downloaded some of the roms from a site. Blue label, yellow label, red label, etc. I'm going to search for a programmer. If you guys know a good place to buy one, please let me know.

What is a good source for the eproms? 2732 and 2532

http://www.mikesarcade.com/cgi-bin/store.pl?action=search&category=Components&subcategory=EPROMs

These are a bit cheeper if you want to program your self

http://www.arcadecomponents.com/catalog/item/2251646/6147622.htm

http://shop.ebay.com/i.html?_nkw=gq...grammer&_osacat=0&_trksid=p3286.c0.m270.l1313
 
Back
Top Bottom