HudsonArcade
Well-known member
A few people have asked about these recently, so I put a design together and finished it up last night....
It'll just be a plug-in-board for the 6809 socket on the video CPU board, and will have NVRAM built-in to eliminate the battery and CMOS RAMs, but it'll only take care of the video CPU -- you'll still need new ROMs for the sound and data cpus (but those just swap directly onto the original ROM board). You won't need the extra ROM-board power jumper cable anymore.
This will run with my next batch of boards, and will hopefully be tested and ready for sale in January.
I was considering doing a full ROM board replacement to take care of all 3 cpus, but the board itself is just too big to be done at a reasonable price point. I *MAY* do a small piggyback board to replace the data and sound ROMs too, but that would be a module that plugs into the existing ROM board, to leverage all of the connectors and interface chips on it -- if I do that, then the pair of boards will make it easy to swap between Taito ROM Sets by swapping cartridges.
It'll just be a plug-in-board for the 6809 socket on the video CPU board, and will have NVRAM built-in to eliminate the battery and CMOS RAMs, but it'll only take care of the video CPU -- you'll still need new ROMs for the sound and data cpus (but those just swap directly onto the original ROM board). You won't need the extra ROM-board power jumper cable anymore.
This will run with my next batch of boards, and will hopefully be tested and ready for sale in January.
I was considering doing a full ROM board replacement to take care of all 3 cpus, but the board itself is just too big to be done at a reasonable price point. I *MAY* do a small piggyback board to replace the data and sound ROMs too, but that would be a module that plugs into the existing ROM board, to leverage all of the connectors and interface chips on it -- if I do that, then the pair of boards will make it easy to swap between Taito ROM Sets by swapping cartridges.

