Sorry to bump an old thread, however I have got a Ridge Racer and Raver Racer arcade cab. The previous owner put in a up / down shifter. I have the 6 speed shifter now but when I installed it, the board set doesn't recognize it. In MAME it is simply a case of selecting the "Deluxe" cab type in the dip switch menu, however no such option exists on the real board set.
Does anyone know how to set the cabinet type on a real boardset?