I am pretty sure there is no AV1/AV2 setting for this receiver. Sony typically does not include this option on the lower end receivers, and there is nothing in the manual to indicate any changes are possible.

I don't know why the preset code for your GE remote doesn't operate the 197, but it is possible that it comes preset for AV2, which is a fairly common practice for Sony. If this is the case, you will not be able to operate the receiver with the GE remote.

If your GE remote has learning capability, then you will have to learn everything. If not, then I guess you won't be able to control the receiver.