Remote Codes for PVR721

[x013573]

Are there any additional remote codes for the PVR721. I'm trying to control my Sony Home Theater system, model # DAV-C770. None of the codes in the user guide work. I have an older Sony system that works with my PVR501, but I can't control the new system with the 721.

Any help is appreciated.

[jcrash]

Go figure. My Sony receiver is like two years old and the remote won't control it either.