There are two ways the MC-303 can be initialized.
Initialize all settings (User Patterns, Variation Patterns, Pattern Sets, RPS
Sets, Songs and System):
1) Hold SHIFT while turning the unit on.
2) Press ENTER.
Initialize some settings (Variation Patterns, Pattern Sets, RPS Sets, Songs and
System):
1) Hold FUNC while turning the unit on.
2) Press ENTER.
Initialize all settings (User Patterns, Variation Patterns, Pattern Sets, RPS
Sets, Songs and System):
1) Hold SHIFT while turning the unit on.
2) Press ENTER.
Initialize some settings (Variation Patterns, Pattern Sets, RPS Sets, Songs and
System):
1) Hold FUNC while turning the unit on.
2) Press ENTER.