Konami Game master 1 en 2 schematics

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By SkalTura

Champion (390)

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11-08-2022, 13:06

Hello all,

Is there anyone who has the schematics for the Konami game master (1 and 2) cartridges...?
Couldn't find it on the web.
I have the ROM files, and would like to make a real cartridge.

And if I have them working, I will of course share the Gerber files for the PCB's here on the forum

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By SkalTura

Champion (390)

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17-10-2022, 11:23

No one has the schematics for Konami Game Master cartridges 1 and 2...?

By gdx

Enlighted (5994)

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17-10-2022, 11:35

If you have a ESE-RAM-SCC, you can use it instead of the Game Master 2 thanks to the ESE-10 patch. All functions are usable with 32kB SRAM instead of 8kB. Game Master 2 SRAM saving/loading to disk utilities by Sean Young do not work but the Game Master 2 can do it. (tested with King Valley 2)

Some functions do not work with an ESE-RAM with ASCII8 mapper.

By SkalTura

Champion (390)

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18-10-2022, 12:24

@gdx: Thank you for your reply, but I want to make a real game master (2) cartridge...

By Manuel

Ascended (19215)

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18-10-2022, 19:39

Isn't GM1 a simple 16kB ROM?

By Popolon_fr

Expert (72)

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18-10-2022, 21:53

Some time ago, I worked on producing a cartridge capable of running the Game Master 2 with a Sram and a simple CR2032 battery for backup in an Overrich case (the PCB is compatible with a Konami SCC case). It's almost finished. Wink

By geijoenr

Champion (358)

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18-10-2022, 23:12

There is this cartridge as well, ESE without SCC:
https://www.msx.org/wiki/ESE_RC755

By Jipe

Paragon (1586)

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19-10-2022, 08:01

i send you a mail Wink

By SkalTura

Champion (390)

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19-10-2022, 11:20

Thank you very much Jipe ;-)

By SkalTura

Champion (390)

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04-01-2023, 09:14

Popolon_fr wrote:

Some time ago, I worked on producing a cartridge capable of running the Game Master 2 with a Sram and a simple CR2032 battery for backup in an Overrich case (the PCB is compatible with a Konami SCC case). It's almost finished. Wink

You have a schematic for me ?

By Popolon_fr

Expert (72)

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05-01-2023, 00:45

Quote:

You have a schematic for me ?

I'm not providing the sources because it's not currently an open source project. There is an open source project for the GM2 part which is comparable and uses Fram rather than Sram. It provides a Gerber that you should be able to view with any dedicated program. however the device uses a Xilinx CPLD, it will require the dedicated tool to visualize the program/schematic which will allow a complete understanding. It seems that this project is based on information given by a Wiki rather than the original cartridge. So, not having studied it, I don't know if it is objective: Click here !

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