My Golden Axe (set 1, World, FD1094 317-0110) had suicided.
I have a copy of the decrypted ROMs from Sega Resurrection. I pulled the two EPROMs from locations A1 and A2 on the top board (27C2001), erased and reprogrammed them and also fitted a standard 68k CPU in place of the custom block.
My Golden Axe board is alive once more and now have no worries about that suicide battery anymore.
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