In some circumstances it may be helpful to perform a factory default reset on the RA-11/RA-12. This can be done by powering on the RA-12, then press the MENU key on the front panel, or SETUP button on the remote to access the setup menu. Use the MENU key or the UP/DOWN buttons on the remote to toggle through the menu options until the display shows “Factory Reset RIGHT=Yes”. Press the RIGHT key on the front panel or remote to perform a factory reset. The unit will ask for confirmation, press RIGHT again to confirm.