85
Music Disk Recor
der
7
■
To protect your data (Write-protect Tab):
To prevent accidental erasure of important data, slide
the disk’s write-protect tab to the “protect” position
(tab open). If you attempt to modify the disk when
the write-protect tab is set to “on” position, “Prot
(Protected)” will appear on the LED display in the
M.D.R. section indicating that the operation is not
possible.
Protect Off
(tab closed: unlocked)
Protect On
(tab open: locked)
Rear side
Shutter
Write-protect tab
■
Data backup
For maximum data security Yamaha recommends that
you keep two copies of important data on separate
floppy disks. This gives you a backup if one disk is
lost or damaged. To make a backup disk use the Disk
Copy function on page 103.
Improved Potentiality of the M.D.R.
The M.D.R. of the EL-700/500 begins reading all data as soon as
you insert a disk into the floppy disk slot. Thus, inserting a disk
causes to produce a sound (reading sound) indicating that the
M.D.R. is in the reading process.
The improvement of the M.D.R. allows you to start song
playback immediately, to be free from the reading sound during
playback and to record the song playback using the several song
numbers with the Next Song function.
NOTE:
Ejecting the disk will lose the data loaded from the
disk except for the currently selected and played
back song.
NOTE:
The time reading sound is produced is in
proportion to the amount of data recorded in the
disk. You can eject the disk whenever you are not
using the M.D.R. and don’t want to be bothered
with the reading sound.
Cleaning the Disk Drive Read/Write Head
●
Clean the read/write head regularly. This
instrument employs a precision magnetic read/
write head which, after an extended period of use,
will pick up a layer of magnetic particles from the
disks used that will eventually cause read and write
errors.
●
To maintain the disk drive in optimum working
order Yamaha recommends that you use a
commercially-available dry-type head cleaning disk
to clean the head about once a month. Ask your
Yamaha dealer about the availability of proper
head-cleaning disks.
Never insert anything but floppy disks into the
disk drive. Other objects may cause damage to
the disk drive or floppy disks.
About the Floppy Disks
■
To handle floppy disks with care:
Do not place heavy objects on a disk or bend or
apply pressure to the disk in any way. Always
keep floppy disks in their protective cases when
they are not in use.
Do not expose the disk to direct sunlight,
extremely high or low temperatures, or
excessive humidity, dust or liquids.
Do not open the sliding shutter and touch the
exposed surface of the floppy disk inside.
Do not expose the disk to magnetic fields, such
as those produced by televisions, speakers,
motors, etc., since magnetic fields can partially
or completely erase data on the disk, rendering
it unreadable.
Never use a floppy disk with a deformed
shutter or housing.
Do not attach anything other than the provided
labels to a floppy disk. Also make sure that
labels are attached in the proper location.
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