- Make sure that the correct sample clock source has been selected from the SYNC SOURCE section of the front panel
- Make sure that the clock source is turned on and has been set to operate from its internal clock.
- Verify that the cables connecting the clock source to the Aurora are the correct type, are free from defects, and are securely connected.
- See if SynchroLock has been disabled. Synchrolock can be toggled on and off from the Aurora front panel by holding down the SYNC SOURCE button for 500ms.
After correcting the problem, page through Aurora’s sync sources until you return to the original selection. This will re-engage the SynchroLock clocking system.