RCA generally uses the discrete on commands for the RCA version of the equipment as the discrete input commands. So the discrete commands posted for VCR On will select VCR, TV On will select TV, etc. There also is one RCA receiver posted under the ccf files and it's input commnds a should work as well.
I believe that the first DVD On command will select the DVD input and a second DVD On command will select 5.1.
Usually from Off any of the input commands will also turn on the receiver. (You can check this with the OEM remote.)
The Power comands are further discussed here:
[Link: remotecentral.com]-Jon