can anyone confirm this is a legit pcb? Looking at other ones I see some rom labels differences and I heard system 18 has a lot of conversion boards
It also happens keys get corrupted then game starts to behave erratically.If the 68k is suicided you get no game at all, no sound would be if it was running an encrypted Z80 MC-8123B. That board has a Zilog Z80 installed
What's your +12 reading? The fact that it's freezing, resetting or giving a black screen is suggesting not enough power to me....