Customizing the remote controller to your tv, Programming the remote controller, Erasing all the programmed functions – Onkyo DR-90 User Manual

Page 60: Set the dvd receiver/level setup/tv switch to tv, Dvd receiver/ level setup/tv switch power, Proceed to the next step within 15 seconds, The sending/learned indicator lights up, Before programming the remote controller, If the programmed buttons do not operate properly