o Files on a computer cannot be played backSymptom Cause / Solution PageThis unit is not recognizedon the computer.0 Reconnect the USB cable to the USB port on your computer. When this unit is still not recognized afterreconnection, connect to a different USB port.210 Restart your computer. -0 Check the OS of your computer. 270 When your computer is running on Windows, a dedicated driver software should be installed. 28This unit is not selected asthe playback device.0 Select this unit as the playback device in the sound settings on the computer. 27“Unlocked” is displayed. 0 When digital audio signals cannot be detected properly, “Unlocked” is displayed. 27“Unsupported” isdisplayed.0 “Unsupported” is displayed when audio signals that are not supported by this unit are input. Check thesettings on your computer or player software.270 If the computer you use is “Mac OS”, please check if the “PMA-50” format is set below “192000.0 Hz”using the “Audio MIDI Setup”.33Contents Connections Playback Setting procedure Tips Appendix55Front panel Display Rear panel Remote Index