KONAMI CHIPS Schematics

Lewinskys

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Does anyone have schematics for the ADD-on Boards that replace the KONAMI Custom Chips?
I know I can buy them from someone here that has revered engineered some of them.
I'd like to build my own boards for my own games.
 
There is some documentation here and I know classicarcaderepairs on youtube has some designs on his patreon. In terms of schematics, I am unaware of any actual konami ones or otherwise floating around.

You might have to make your own schematics and understand the customs if you want to do your own implementations.
 
If you subscribe to classicarcaderepairs Patreon, he has 502/503/504 gerbers available for download.
 
I have made an effort in the other thread to make the schematics open source so these can be reproduced.

Be aware that the add on boards do not always implement the full functionality of the original device but instead just enough to work for the game they are adapting.

There are also CPLD implementations knocking about but the source for these isn't yet open sourced as those people, myself included, are attempting to get some payback for the blood, sweat and tears they put into the implementations. I plan to open source my own when I leave the scene.

I'm still struggling with the LFSR implemention in the 084... Any help to put me out of my misery always happily received. (And the add on for bootleg Tutankham isn't the same as the real thing)
 
I have made an effort in the other thread to make the schematics open source so these can be reproduced.

Be aware that the add on boards do not always implement the full functionality of the original device but instead just enough to work for the game they are adapting.

There are also CPLD implementations knocking about but the source for these isn't yet open sourced as those people, myself included, are attempting to get some payback for the blood, sweat and tears they put into the implementations. I plan to open source my own when I leave the scene.

I'm still struggling with the LFSR implemention in the 084... Any help to put me out of my misery always happily received. (And the add on for bootleg Tutankham isn't the same as the real thing)
Do you have the link to the Open source schematics? I cant seem to find them.
 
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