HPD-15: Sync Mode
If you would like to sync the HPD-15's sequencer to an external MIDI device, you want to set the Sync Mode to "EXT." Use the following steps to do so:
1. Press the SYSTEM button on the HPD-15.
2. Press PARAMETER right (>) to select "UTILITY Seq Sync."
3. Turn the VALUE dial to select "Ext."
4. Press EXIT. The new setting is saved automatically.