Steinberg UR22C Operation Manual page 31

Troubleshooting
No Sound
Is the [ASIO Driver] setting on the Cubase series program set
properly?
From the Cubase series menu, open the [Studio]  [Studio Setup]  [VST Audio
System], then confirm that the [Yamaha Steinberg USB ASIO] (Windows) or
[Steinberg UR22C] or [Steinberg UR22C (High Precision)] (Mac) is selected on
the [ASIO Driver].
Windows Mac
Was the power of the device turned on before starting the DAW
software?
Before starting the DAW software, connect the device to a computer and turn on
the power of the device.
Is the input/output routing set properly?
Refer to the section "Recording/Playback" (page 25) to check the input/output
routing in the DAW.
Is the monitor speaker switch turned on?
Confirm that the monitor speaker switch is turned on.
Is the buffer size set too low?
Increase the buffer size compared to the current settings; refer to the section
"Yamaha Steinberg USB Driver" (page 6) for instructions.
Is the error message "Audio Format is Unmixable" shown? (Mac
only)
The error message "Audio Format is Unmixable" is shown in the Yamaha
Steinberg USB control panel. Click [Revert to Mixable] to resolve the error.
UR22C Operation Manual 31