Problems controlling a yamaha receiver

I've got a usb-uirt with girder and plan on sticking the receiver in a cabinet so the need to have the emitter working has come up. I've gotten the power on/off to function and just require the vol up/down and mute to work but while they do learn fine, they don't do anything with the receiver. I did notice that the code for power on had both code 1 and code 2 learned and were quite long. The codes for mute and the volume stuff were much shorter. Any ideas on how to troubleshoot?
Mike
Mike