You can return the knob and button parameter assignments to their factory-set (initial parameter) settings.
- While holding down the [GRF 5] and [GRF 6] buttons, turn the power on.
The [GRF 5] button blinks. - Press the [GRF 5] button.
The [GRF 5] button and [GRF 6] button light. - Turn the power off and then on again.
The settings are initialized, and the unit returns to the factory-set condition.