I have received the same controller with my F-16 with any kind of operating manual. I started with measuring the polarity of the outputs by attaching a simple volt meter; once I got that figured out I hooked it up to a servo tester and the gear was working... haven't played around with the geardoor sequencer. Please share here if you manage to figure out more of how it works

I have posted 2 videos on my youtube channel, as I am not allowed to post url's you'll have to look for the channel of "jorisnys"