I noticed the analog control for the volume and throttle do not work in f15se nor f15se21. When you go to assign controls, the input for volume control appears to be digital, instead of analog as the operator test screen in service mode would suggest. The throttle input appears to be ignored when testing the throttle in the operator test screen. From watching people's video captures on Youtube, it appears this must have been working properly at some time.
I am running MAME under Linux (Fedora 25.) Is anyone else able to replicate this problem? Thanks!