Jamma is the arcade standard pinout adopted around 1987 and used on the vast majority of game boards made since 1987. This category includes all of our Jamma boards, most of the ones we sell are tested and working, sometimes we do list broken boards that we don't have the expertise to repair.
Note that some Jamma boards use what we describe as "Jamma+" wiring. Jamma+ wiring is a catch-all description to include additional wiring needed to play the game, things like 3rd and 4th player control connections (for games like NBA Jam and TMNT) and extra buttons (think Street Fighter, Mortal Kombat) generally fall into this category.
Main Event, The
Original Midway MK1 boardset, working
Namco System 246 Jamma I/O Board
Working I/O Board
Namco System 246 Wiring Harness
Part of the harness, not sure what game
Working boardset, small board, buttons and CP w...
Neo Geo MVS 1-Slot
Clean board, not working
Off Road Challenge
Complete, not working
Boots to corrupted NVRS error
Pigskin 621 A.D.
Original CPU and sound board with cables, working
Police Trainer (No Sound)
Boots and plays, but no sound
Working boardset with metal plate