The following procedure can be used to clear the internal memory and reload the factory settings on the JV-2080:
(CAUTION: All USER information will be lost. Be sure to back up any information you wish to keep.)
- Press UTILITY.
- Press F6 two times to select Menu 3. Press F1.
- Press F6 to restore the factory settings.
If necessary, turn the VALUE dial to switch Memory Protect OFF and press F6 two times.
Owner's Manual: https://www.roland.com/us/support/manual_archive/