Fast answer

In UTILITY:SYNC/TEMPO, set TempoSync to MIDI for the DIN MIDI IN, or AUTO if you deliberately want automatic source selection. Then confirm the other device is transmitting MIDI clock.

Fastest check and exact settings

  1. Press UTILITY and open SYNC/TEMPO.
  2. Set TempoSync to MIDI for a MIDI IN source; use AUTO only when automatic selection is intended.
  3. Connect the master’s MIDI OUT to TR-8S MIDI IN.
  4. Start the master and verify it transmits MIDI clock.

Diagnose it

Is TempoSync set to MIDI or AUTO?

Yes: Confirm the source’s clock output and the DIN cable direction.

No: Choose MIDI for DIN clock input, then retest.

Are both USB and MIDI clock connected while using AUTO?

Yes: USB takes priority in AUTO; remove or account for the competing USB clock.

No: Check the master’s clock-transmit setting.

How to test

The TR-8S tempo synchronizes to MIDI clock received at MIDI IN.

Why this happens

Roland documents MIDI as the MIDI-IN tempo source and notes that USB has priority when both inputs supply clock in AUTO.

If it still doesn’t work

Recheck the physical MIDI direction and the exact source device setting. If this behavior differs on your hardware, keep the model/revision and setup details for a correction report.

All TR-8S fixes
Provenance

Sources & review

Last desk review: . Documentation does not replace a physical hardware test.

Sections reviewed: UTILITY:SYNC/TEMPO, Reference Manual v3.00.