need remote for old garage door opener
I have an old Genie chain drive (model 200). The receiver box is separate and says Cryptar II Control, Model AR-50, Freq = 325, Alliance Mfg.
I bought a universal remote at Home Depot, but I can't figure out if I have DIPs or a learn button. I can't find either one. I assume I need to look by the antenna on the receiver box. I took the little black cover off as there were no buttons of any kind visible on the outside. Under the cover is a circuit board, but I do not see a button or DIPs anywhere.
The actual motor (Genie) has a heavy metal cover that is bolted in place. I don't think that I should mess with that.
Also, a friend with built-in remote in his Lexus programmed his car to work with this garage door opener. I think he said he did it by using the old remote (now dead). His car unit was able to "read" the signal.
Can anyone help?