Rotel RSP-1572

Has anyone got a rotel rap-1572 working? I’m running it through the IR emitter on an itach (though have tried the blaster and straight into the IR input). The only command I can get to work is if I choose zone 4 in the roomie setup and then I can toggle the zone 4 power. Setting it up on the main zone I get no response to any command. Same itach and cables worked just find with my old marantz receiver so I know they are not the issue. Thanks in advance.