Hi, new here. I've got two copies of Roger Clemens MVP to use as donor boards, one is a 53361-2 (MC-ACC) and the other is a 51555-2 (MMC3B).
I also have two pairs of 27C020 (one each for CHR/PRG), one with Mega Man 5 and the other with Bonk's Adventure. Both EPROMs work properly on the 51555-2 (MMC3B) board.
The EPROMs, when put in the 53361-2 (MC-ACC) board, seem to boot fine, but the graphics are partially corrupt. I've tried rewiring the CHR EPROM a few different ways, but have had no luck.
I've seen mention that the 53361-2 (MC-ACC) is 27C101 compatible, but I don't have any of these to test with, not to mention they would be too small for my needs (I need 2Mbit).
Has anyone figured this out? Is there a way to run 27C020 CHR on a 53361-2 (MC-ACC) donor board properly? My gut tells me it's simply missing an address line, but I'm new to this and wouldn't know where to begin.
Thanks for your help!
I also have two pairs of 27C020 (one each for CHR/PRG), one with Mega Man 5 and the other with Bonk's Adventure. Both EPROMs work properly on the 51555-2 (MMC3B) board.
The EPROMs, when put in the 53361-2 (MC-ACC) board, seem to boot fine, but the graphics are partially corrupt. I've tried rewiring the CHR EPROM a few different ways, but have had no luck.
I've seen mention that the 53361-2 (MC-ACC) is 27C101 compatible, but I don't have any of these to test with, not to mention they would be too small for my needs (I need 2Mbit).
Has anyone figured this out? Is there a way to run 27C020 CHR on a 53361-2 (MC-ACC) donor board properly? My gut tells me it's simply missing an address line, but I'm new to this and wouldn't know where to begin.
Thanks for your help!