Take these steps to return settings to the Factory-Default state:

This returns values that have been set to their factory defaults. If operation that differs from what is described in the owner’s manual occurs even when the steps are followed correctly, try performing a factory reset. Executing a factory reset causes all settings made up to then to be lost.

1. Press the [MENU] button
2. Select “Factory Reset”
3. Press the [ENTER] button
4. The message “Push ENTER to execute” appears
5. To execute the operation, press the [ENTER] button.
   (If you want to cancel the operation, press the [MENU] button.)
6. A factory reset is executed.