Yamaha DCD1+PS Operation Manual page 11

Deleting All Songs
You can delete songs stored on a disk all songs at
once.
If you want to delete all songs on a disk, it may be
quicker to re-format the disk. Refer to your
piano's manual for details.
In the Song Delete screen, to
delete all songs, press [–/NO] until
the following display appears,
then press [ENTER].
The following display appears.
Resetting Your Disklavier
By upgrading the Control Unit version, you can
reset the piano to the factory initial settings.
Follow the Reset function below.
You can reset all settings, the Memory Disks, or
both.
1
Press [FUNC.].
The FUNC. indicator lights and the
Function menu appears.
2
Press [ > ] until c cursor is next to
the Reset option, then press
[ENTER].
3
Use the [+/YES] buttons to select
Factory init. setting. Then press
[ENTER].
This selects the factory initial settings.
The following display appears.
4
Press [ENTER] when the following
display appears, then press
[+/YES].
5