There are three possible causes.

1. Have you pressed the [ON/OFF (UTILITY)] button to turn MIDI on?

2. Is the MIDI channel properly set? Is the MIDI channel set properly? Set the MIDI channel from the [MIDI] tab in the Settings Utility.

3. Are the MIDI settings properly set? To operate DJ software with this unit, this unit's MIDI messages must be assigned in your DJ software. For instructions on assigning them, see your DJ software's operating instructions.