I recently installed a new DirecTV box that came with the RC71 remote. I am unable to use it with my Harman Kardon AVR-235. Anybody know of any codes other than the ones on the DirecTV site? Also, I was unable to get the remote to recognize my nee Samsung F4500 TV until I found a code from some random tech site. This tells me that the codes stored on the receiver and DTV site are out of date.
You can't, there are no preset av receiver codes in the rc71 remote, it strictly relies on the HR44 Genie in RF mode to put the proper stereo code in to the rc71 remote. Once there is a code, only the volume and mute work. For ALL stereo codes.