You can likely find what you need in the Classic Pronto Files section under the RX-V800 model (Equivalent to HTR 5280) or the RX-V1. Yamaha reuses the same IR codes across all their receivers. What you may find is that some of the function names are different.
Here are a few samples that should get you going.
[Link: files.remotecentral.com][Link: files.remotecentral.com]
