(Topic ID: 222797)

NEW! Williams System 3-7 In-Game Test ROMs

By pincoder

5 years ago

Topic Stats

336 posts
48 Pinsiders participating
Latest reply 4 months ago by DumbAss
Topic is favorited by 75 Pinsiders

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Linked Games

Algar Williams, 1980
Alien Poker Williams, 1980
Barracora Williams, 1981
Black Knight Williams, 1980
Black Knight Limited Edition Williams, 1981
Blackout Williams, 1980
Contact Williams, 1978
Cosmic Gunfight Williams, 1982

There are more than 8 games linked to this topic.
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Topic poll

Sort: Original A-Z Score

“Which test ROMs have been the most useful for you?”

01a-leds 2 votes

13%
01b-bus 0 votes
01c-transceivers 0 votes
02-blanking 0 votes
03-cmos-IC19 4 votes

25%
04-ram-IC13 3 votes

19%
04-ram-IC16 3 votes

19%
05-displays 2 votes

13%
06-switches 1 vote

6%
07-bounce 0 votes
08-interrupts 1 vote

6%
09-lamps 0 votes
10-solenoids 0 votes
11-sounds 0 votes
12-sounds2 0 votes
clear_cmos 0 votes
edit_cmos 0 votes
init_cmos 0 votes

(Multiple choice - 16 votes by 5 Pinsiders)

This poll has been closed.

Topic Gallery

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LTSpice sim of BLANKING keep-alive in test ROM (resized).png

0C200399-BFEC-4C5C-9381-C10E3CD5EC73 (resized).jpeg

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Quoted from barakandl:
Since there is sixteen 2716 images one could build a 27256 EPROM board with a 4 position dip and pullup resistors to bank switch between each test rom.

I'd be interested in something like this. I want to try this out to play with it but having to locate and program 16 ROMs has kept me from doing so. I'm sure I have 16 laying around, but a lot of them have other test programs on them or are for specific games that I use to test. I really don't want to erase them for this and then later have to do it all over again to use them for the same purpose they're being used for now.

Quoted from uofmer:
it's been hard to find the previous testroms (Andre/Leon) and their instructions on the web.

Andre:

https://pinside.com/pinball/forum/topic/wms-sys-3-7-andre-test-rom-usage-video-v2
https://pinside.com/pinball/forum/topic/andre-test-rom-v2-in-action
https://code.google.com/archive/p/lcd-pinball-display/downloads

Leon's stuff is archived at Pinwiki. There is also info on using the ROMs in the respective game sections.

https://www.pinwiki.com/wiki/index.php?title=Leon_Borre%27s_Repair_Articles

Craig, you have the link wrong for the new version of the file (or the file name is wrong). You have it pointing to version 2015 and it should be 2051. Correct link:
http://pincoder.reversion.ca/ccn/ROMS/pincoder_roms-2716_2018-09-26_2051.zip

I've used a GQ-4X for years and it has never cared about the file extension name. I choose show all files, pick the one I want to use, then program the EPROM. It has never made a difference if it is named .bin, .rom, .L1, .L2, etc.

Quoted from Nusilor:
Heres a rough drawing with the fixes, all the rest was the same

Crap, I made a board based on the original picture. Haven't tried it yet. So you're saying I need to re-wire it based on your corrections?

Quoted from Nusilor:
stangbat Heres a pinout of both chips from the respective data sheets so you can picture what we are talking about, and come to your own conclusion.

Thanks, makes sense.

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