Cannot re-program sound to RC73 remote
Have a genie receiver with a RC73 remote in our media room using a Panasonic projector and Nakamichi AV 500 sound system. It has been working for a couple of years. Yesterday, the remote failed to work the sound at all. Searching for a solution here, I reset the remote and attempted to program the remote to recognize the sound system on AV1 or AV2, first using the code that worked and was recorded when your technician installed the system, then every Nakamichi code provided. None work. What do I do now?