Use the following procedure to change the sync setting of the TR-626:
- Enter Track Play mode.
- Press the START/STOP button to stop the rhythm if it is running.
- While holding SHIFT, press SYNC/MIDI.
- While continuing to hold SHIFT use the value dial to change to the desired setting.
Display will show:
Snc tP = Tape Sync
Snc nn = MIDI Sync
Snc oF = Internal Sync
Owner's Manual: https://www.roland.com/us/support/manual_archive/