Man, how am I just seeing this thread for the first time now?!
I have a bunch of original carts with badly cracked cases and would love a set of these for the Fuffy boards as well.
interesting, mine has the same soldered wires to the connector footprints, I assumed it was an operator hack job but maybe some of them shipped that way?
it looks like this might use the same pin configuration as Apoc's Irem M92 multi.
So I'd suspect whatever solution Mitsu puts together for that will work on this as well.
First is to determine what monitor you actually have in there. A lot of Medium Res Montors are actually dual-res, and require either a switch or some connectors changed over to change between resolutions.
As for other medium Res games
A lot of other late 90s Midway/Atari Stuff supports Med res...
As far as I know there isn't any drop in replacements.
it's a 16Mbit SMD ROM which are difficult to find, and often don't have standard pin-outs so you may need to add some bodge wires. I think you can find them in 5V variants (though rare, they do exist).
For anyone who has one of my multis these are all ready to go. And if you want to build your own everything you need is on the github repo including gerbers BOM and placement files so you can order them fully assembled from the PCB fab shops.
As for the M92 version. There's a small modification...
yup I can also confirm that speaker grills are a dark grey. also the area of the white plastic behind the grill (around the speaker) is blacked out with some mat paper so that you don't see the white plastic behind the grill.
I replaced mine with some matte black vinyl wrap. I also covered the...
Do you have a reset point identified on the mobo? and can you share the pinout of the header near the rotary switch? if so I can start poking around at making it work.