Yamaha Disklavier Silent Mark III Service Manual page 58

DU1A
ERROR MESSAGES
While operating your Disklavier an error message may appear in the display. If an error message appears,
refer to the table below for an explanation of the message.
Note: This table does not explain every error message.
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PianoSoft songs are write-protected and cannot be
re-recorded.
The current function cannot be executed because
protected files exist on the floppy disk.
No more song data can be recorded onto the floppy disk
because the disk is full.
Use another floppy disk.
The current function cannot be performed because the
floppy disk's erasure protection tab is set to "protected."
Set the disk's erasure protection tab to "unprotected."
No more song data can be recorded onto the disk because
the disk is nearly full.
No more than 60 songs can be recorded onto an E-SEQ
type disk.
No more than 99 songs can be recorded onto an SMF
type disk.
The current function cannot be performed because this
disk contains no songs or only one song.
A wrong floppy disk has been inserted as the destination
disk. Insert the correct floppy disk.
The floppy disk is either new and has not yet been
formatted for use with the Disklavier or uses a format not
recognized by the Disklavier.
Format the floppy disk.