- Check physical connections (S/PDIF/Clock).
- Ensure external clock device is powered.
- Verify sample rate matches.
- If lost, AudioDock switches to internal clock (48kHz) until sync is re-established.
Source: 1820M — v2-1820-1212-en (manual)
Symptoms this guide addresses
Source: 1820M — v2-1820-1212-en (manual)