Ahoy everybody!
So I scored a really crispy CPS1 DASH HyperFighting US board-stack.
While I like Hyperfighting, I wanted the JPN "TURBO" roms.
So I found some spare 27C4096 chips from my old CPS2 project, and re-purposed them.
I burnt roms 21, 22, and 23. Socketed them in without issue.

Now when I fire the board up, everything works fine except the damn logo.
I'm so close, and I've tried 2 different burned sets of roms from MAME with the same result.

Is there something I'm missing or need to tweak to get this correct?
Thanks for any help you folks can provide.
So I scored a really crispy CPS1 DASH HyperFighting US board-stack.
While I like Hyperfighting, I wanted the JPN "TURBO" roms.
So I found some spare 27C4096 chips from my old CPS2 project, and re-purposed them.
I burnt roms 21, 22, and 23. Socketed them in without issue.

Now when I fire the board up, everything works fine except the damn logo.
I'm so close, and I've tried 2 different burned sets of roms from MAME with the same result.

Is there something I'm missing or need to tweak to get this correct?
Thanks for any help you folks can provide.