Do not connect a USB-only keyboard directly and expect SH-4d to host it. Use a documented MIDI IN setup, or route the keyboard through a computer to SH-4d's USB connection.
Try these checks
- Check whether you are trying to connect a USB keyboard directly to SH-4d.
- Use MIDI IN with a suitable MIDI-output keyboard, or a computer-routed USB setup instead.
- For Remote Kbd mode, select MIDI IN or USB as appropriate and match the keyboard's transmit channel to Ctrl Ch.
Diagnose it
Is the keyboard connected directly by USB without a computer host?
Yes: That setup is unsupported by SH-4d.
No: Check Remote Kbd and the documented Ctrl Ch requirement.
What should happen
A supported route supplies the remote keyboard input; the direct USB-only setup is not used.
Why this happens
Roland states that SH-4d lacks USB HOST support for MIDI keyboards.
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: Remote Kbd, p. 78.