Time Crisis 2 was the only System 23 game to have revs that run on System 23, TSS1, TSS2 and TSS3, and System Super 23, TSS4 and TSS5. Also, check both main pcbs and pray both are the same. The program rom PCB determines which version of the game it will run (if possible, there should be a small sticker stating the version unless the previous operator scratched that off). The main, large one on the bottom, rom, medium top one, and program rom, small pcb on top. It's basically either use a complicated SMT chip removal process in the risk of destroying the flash roms (and buying replacements) or connecting the program rom pcb to some computer to reprogram the two main program roms from there. Also, the program rom pcbs for these are slightly different.Ī rom swap is possible but it's not easy (mainly due to the fact the two roms you would need to change are surface mounted flash roms and given you have the same cpu boards). The revs that run on System 23 can't run on System Super 23 and vice versa.

Click to expand.Namco System 23 units have three pcbs.

Time crisis 2 mame rom working