I have no idea what you mean by "how do I set my panasonic dmr ez-47v back to rc1".
You obviously have not read the Harmony remote manual have you?
Have you loaded the software for the remote on your computer yet?
The instructions for its use are here: http://www.logitech.com/en-ca/440/371
After you load the software on your computer and connect your remote to your computer, you will want to read the selection "adding a device..."
