PCR-300, PCR-500, PCR-800: How Do I Enable Omni Mode?
The PCR-300/500/800's various controllers can be assigned to any MIDI channel. If you would like to temporarily transmit on only the current MIDI channel, regardless of each controller's assignment, you must turn Omni mode on:
1. Press EDIT.
2. Turn the VALUE knob to select "oMnI" and press ENTER.
3. Turn the VALUE knob to select "oN" and press ENTER.