In Global P1: MIDI, choose Auto USB for a USB-connected clock source or Auto MIDI for a source connected through MIDI IN. Then store the change with Write Global Setting.
Try these checks
- Open Global P1: MIDI and locate MIDI Clock in MIDI Setup.
- Select Auto USB for USB timing or Auto MIDI for DIN timing, and make the computer send clock to that route.
- Use Write Global Setting, then check the tempo while the external source sends clock.
Diagnose it
Is the clock coming through a different route from the selected Auto mode?
Yes: Match Auto USB or Auto MIDI to that route.
No: Check the sender’s clock output; Auto uses internal tempo without incoming clock.
What should happen
The chosen incoming clock controls tempo while present, with internal fallback when absent.
Why this happens
The documented Auto modes distinguish the USB and DIN clock paths.
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 KRONOS (original) fixesMore about KRONOS (original)
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.
- KRONOS Operation Guide · Korg · Original KRONOS · Operation Guide E4 · software-1.5-era edition · last checked 2026-11-05
Sections reviewed: MIDI Clock synchronization, p. 158.