Appendix
Troubleshooting
If you think that the R20 is operating strangely, check the following items first.
Recording/playback trouble
There is no sound or output is very quiet
• Check the connections to the monitoring system and its volume setting.
• Confirm that the volume of the R20 is not too low (→ Playing projects).
Sound from connected equipment or inputs cannot be heard or is very quiet
• Check the input level settings (→ Adjusting input levels).
• If a CD player or other device is connected to an input jack, raise the output level of that device.
• Operate knobs and faders to adjust the volume.
• Check phantom power settings (→ Connecting input devices).
Recording is not possible
• Confirm that is lit red.
• Confirm that the SD card has open space. (→ Checking SD card information).
• Confirm that an SD card is loaded properly in the card slot.
• If “SD card protected!” appears on the display, the SD card write-protection is enabled. Slide the lock
switch on the SD card to disable write-protection.
Recorded sound cannot be heard or is very quiet
• Confirm that the volume levels of the tracks are not too low (→ Playing projects).
• Confirm the tracks are not muted or that another track is not soloed (→Muting tracks, Listening to
selected tracks only (soloing)).
Other trouble
Computer does not recognize it even though it is connected to a USB port
• Confirm that the operating system is compatible (→ Using as an audio interface, Using as a card reader).
• Connection procedures must be conducted on the R20 to enable it to be recognized by a computer
(→Using as an audio interface, Using as a card reader).
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