Instead of the manual, try Daniel's excellent review here:
[Link: remotecentral.com]In the meantime, here's how to learn to a button from that review:
"Enter the setup menu, select [Learn], then pick the device and button to teach on. Point the original (source) remote at the front of the RM-AV3000, push and hold its button, and the Sony will beep to confirm capture of a signal."
Mike
Surf Remote