I am not sure if it really is the ROMS, because the power-up self test
does NOT report any errors.
I do have the MAME file of TMNT which has ROM images but there are so
many files I don't know which ones are the ones needed for the FIVE
ROMS on the Jamma board, there are 3 512Kbit roms and 2 1MBit roms
that I can see on the board and are labled 1 to 5....
Could someone email me all 5 files and tell me which one is for which
rom#? Thanks.
If the self test doesn't report ROM errors then the ROMS are likely just
fine, I would suspect RAM or addressing circuitry instead.