Remove an unused EXT CLK IN cable before checking MIDI or USB Sync Mode. SH-4d follows that jack whenever it is connected.
Try these checks
- Inspect EXT CLK IN and disconnect an unused clock cable.
- Open SYSTEM SETTINGS → TEMPO/SYNC and choose the intended Sync Mode.
- Start the matching MIDI or USB clock source and check playback timing.
Diagnose it
Is a cable connected to EXT CLK IN?
Yes: That input takes priority; remove it if you want to test MIDI or USB sync.
No: Check Sync Mode and the sender's clock output.
What should happen
The selected MIDI or USB source can control timing when EXT CLK IN is not overriding it.
Why this happens
Roland explicitly documents EXT CLK IN priority regardless of Sync Mode.
If it still doesn’t work
Check the connections and settings described above. If your device behaves differently, email us with its model, firmware version and the steps you tried.
All SH-4d fixesMore about SH-4d
Similar symptoms on other gear
These guides cover other models. Use the instructions for the device you are setting up.
Sources & review
Sources reviewed: . Documentation does not replace a physical hardware test.
- SH-4d Owner's Manual · Roland · Version 2.00 owner's manual · English revision 03 · last checked 2026-10-07
Sections reviewed: TEMPO/SYNC, p. 77.