I have an HR24-100 that is stuck at "Running receiver self-check...". I've red button reset several times. The first symptoms of the failure were oddities when playing a recording such as stopping while playing the recording, then starting up where it had been stopped, then playing normally for a while and then stopping again and then starting up where it had been stopped. The last error was stopping in the middle of a different recording, and staying frozen at that spot and refusing to accept any remote control commands. Can I bring it back to life somehow?