Thank you for your response! I do have the tv code installed on both remotes, and I have tried the 993 on av1 and av2 and they won't work on the volume on the sony surround :( its got me baffled......
Paul

Sorry, yes its a yamaha surround sound Yamaha Rx-V450..... my eyes are bleeding from all the searching and reading, and I had a brain flatulant....
The 993 isn't working with these 2 remotes...