SNK NeoGeo 2 slot arcade pcb repair
This NeoGeo 2 slot booted to a screen saying Z80 error. That doesn’t necessarily mean the CPU is at fault – it could be the program ROM, the RAM or several intermediate chips that connect the Z80 to the main 68000 CPU that prints the error. In this case though a logic probe seemed to show the Z80 was dead. Desoldered, installed a socket and Z80 pulled from an Arkanoid, and everything worked!