Theres a random multicade cabinet at my uni hostel that has been broken for years and ive been given permission to fix it. I dont know a whole lot about arcades but ive been looking into it. The cabinet is a 619 in one jamma cabinet. Everything seems to be alright hardware wise but the issue is when it boots it gets stuck on the game elf logo. Ive tried booting whilst holding the s1 switch with no such luck and dont really want to mess with anything else as im unaware to how this all works. Maybe theres a way to reset it to factory default settings or I need to adjust the dipswitches? Any help would be greatly appreciated.