Hi, Your post was helpful and I can now control off/on (standby) and channel up/down; however we still cannot control the Volume.
We have the silver Comcast remote with the "on demand" button and the "OK" button is red. Our amplifier is the Onkyo TX-SR309.
Please advise if the is another code sequence we can use to control the volume.
E R-N N4NV@comcast.net