Use the following procedure to reset the DR-770 to its original factory settings:
1. Press UTILITY.
2. Use the CURSOR < or > buttons to select "9 F.RST."
3. Use the VALUE DIAL to select "ALL."
4. Press ENTER to display "SURE?"
5. Press ENTER again to display "Done" followed by "ALL."
6. Press PTN/SONG to return to the Play mode.
1. Press UTILITY.
2. Use the CURSOR < or > buttons to select "9 F.RST."
3. Use the VALUE DIAL to select "ALL."
4. Press ENTER to display "SURE?"
5. Press ENTER again to display "Done" followed by "ALL."
6. Press PTN/SONG to return to the Play mode.