Professional software development, amateur BMW tinkering, old arcade game stuff


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!

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