- Go to the Master menu.
- Select the 'Send MIDI Data' function.
- Select 'Factory Presets' (If you have a backup). Note: The manual text provided does not explicitly describe a front-panel 'Factory Reset' button combination, but details sending System Exclusive data to restore presets. Without the specific button combo in the text, I must rely on the SysEx method described in the Master Menu section.
Source: Orbit — e-mu-orbit-operation-manual (manual)
