MC-307: Initializing - Restoring the Factory Settings
The following procedure can be used to clear the internal memory and reload the factory settings:
(CAUTION: All USER information will be lost. Be sure to back up any information you wish to keep.)
1. Press SYSTEM, then press F2 [UTIL].
2. CURSOR DOWN to "5 FACTORY RESET" and press F1 [FACT].
3. Press F4 [EXEC] to display "PROCESSING ... KEEP POWER ON!"
Note: The Factory Reset takes about 6 minutes.
DO NOT TURN OFF THE POWER DURING THIS PROCESS!