I have an old DVR 510 that I am going to put in my travel trailer, but half the buttons on the old UHF remote do not work. I also have an old UHF Pro remote form my last HD receiver. The instructions to change the address seem the same for both remotes, however I have been trying to get that remote to work the 510, but have not had any luck. Is it even possible to use this remote on an older receiver?