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Appendix
Message List
System limit
This message appears when the number of files and folders exceeds the system limit. The maximum
number of files/folders which can be saved in a folder is 250. Try again after deleting/moving the
unnecessary file(s).
Unformatted device (media)
This message appears when you attempt to use an unformatted USB storage device. Format it
(page 46), and try again.
Unsupported device
This message appears when an unsupported USB storage device is connected. Use a device
whose compatibility has been confirmed by Yamaha (page 51).
USB device
overcurrent error
Communication with the USB device has been cut off because of an abnormal power surge to the
device. Disconnect the USB device from the [USB TO DEVICE] terminal and turn the power switch of
the instrument off and on again.
USB hub
hierarchical error
The USB hub is connected in two layers. USB hub use is limited to one layer.
USB power consumption
exceeded
The power consumption of the connected USB device exceeds the predetermined value. This
message appears when a bus-powered USB hub is used. The USB hub must be self powered (with
its own source) and the power must be on.
Wrong device
The file operation cannot be made to the connected USB storage device. The following causes can
be considered.
• The USB storage device in not formatted. Format it (page 46), and try again.
• The number of files and folders exceeds the system limit. The maximum number of files/folders
which can be saved in a folder is 250. Try again after deleting/moving the unnecessary file(s).
• The media is not inserted. Insert the media.
Wrong name
The Song name is not appropriate. This message appears during the “Renaming files” (page 43) or
“Making folders” (page 45) operation because of the following causes. Press the B [– (NO)] button to
return to the previous display, and rename the Song correctly.
• No character has been input.
• You used a period or space at the beginning/ending of a Song name.
Wrong selection
The file operation you attempted cannot be executed to the selected drive. For information on the
limitations of handling Song files, see page 41.
Message
Meaning