PARENTAL CONTROL-RATING LEVELTRAY LOCKIf the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below.1. Turn Unit ON.2. Press and hold the '7' key on the remote control unit.3. Simultaneously press and hold the 'STOP' key on the front panel.4. Hold both keys for more than 2 seconds.5. The On Screen Display message 'PASSWORD UNLOCK' will appear.6. The 4 digit password has now been clearedNB: No indications on the screen when the Parental Lock is setting.4 DIGIT PASSWORD CANCELLATIONTray cannot be opened by setting the Tray Lock, please follow the steps below.1. Turn Unit ON.2. Press and hold the '0' key on the remote control unit.3. Simultaneously press and hold the 'STOP' key on the front panel.4. Hold both keys for more than 2 seconds.5. Press the OPEN/CLOSE key on the front panel to check the Tray Lock setting.NB: No indications on the screen when the Tray Lock is setting.To unlock the Tray Lock, follow the steps above again.42