If you look inside the battery compartment of the 7140, you'll see a 2X3 pin header.  UEI (the actual maker of these remotes) provides this connector so that it is possible to communicate to the remote from a  computer; including uploading configuration changes and supporting entirely new IR protocols.   The JP1 community has over the years figured out how to interact with the remotes.  If you're interested see [Link: hifi-remote.com].