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 recom-
mends 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 tem-
peratures, 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.

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).

WARNING

• Before beginning installation, switch off the power to the PSR-8000 and
connected peripherals, and unplug them from the power outlet. Then
remove all cables connecting the PSR-8000 to other devices. (Leaving
the power cord connected while working can result in electric shock.
Leaving other cables connected can interfere with work.)
• Do not disassemble, modify, or apply excessive force to board areas and
connectors on hard disk, and SIMMs. Bending or tampering with boards
and connectors may lead to electric shock, fire, or equipment failures.

CAUTION

• Before handling the internal hard disk or SIMMs, you should briefly touch
the metal surface to which the hard-disk or SIMM cover is attached (or

Precautions

• Be sure to handle floppy disks and treat the disk drive with care. Follow
the important precautions below.

Compatible Disk Type

• 3.5” 2DD and 2HD type floppy disks can be used.

■ Inserting/Ejecting Floppy Disks

To insert a floppy disk into the disk drive:

• Hold the disk so that the label of the
disk is facing upward and the sliding
shutter is facing forward, towards
the disk slot. Carefully insert the disk
into the slot, slowly pushing it all the
way in until it clicks into place and
the eject button pops out.

To eject a floppy disk:

• Before ejecting a floppy disk make
sure that the floppy disk drive is not
in operation (the DISK IN USE indi-
cator should be off, except when the
internal hard disk is being accessed).
Press the eject button slowly as far as it will go; the disk will automati-
cally pop out. When the disk is fully ejected, carefully remove it by hand.
• Never attempt to remove the disk or turn the power off during recording,
reading and playing back. Doing so can damage the disk and possibly
the disk drive.
• If the eject button is pressed too quickly, or if it is not pressed in as far as
it will go, the disk may not eject properly. The eject button may become
stuck in a half-pressed position with the disk extending from the drive
slot by only a few millimeters. If this happens, do not attempt to pull out
the partially ejected disk, since using force in this situation can damage
the disk drive mechanism or the floppy disk. To remove a partially ejected
disk, try pressing the eject button once again, or push the disk back into
the slot and then repeat the eject procedure.
• Be sure to remove the floppy disk from the disk drive before turning off
the power. A floppy disk left in the drive for extended periods can easily
pick up dust and dirt that can cause data read and write errors.

Cleaning the Disk Drive Read/Write Head

• Clean the read/write head regularly. This instrument employs a preci-
sion magnetic read/write head which, after an extended period of use,
other such metallic area — be careful of any sharp edges) with your
bare hand so as to drain off any static charge from your body. Note that
even a slight amount of electrostatic discharge may cause damage to
these components.
• It is recommended that you wear gloves to protect your hands from
metallic projections on the PSR-8000 hard disk, SMMs, and other com-
ponents. Touching leads or connectors with bare hands may cause fin-
ger cuts, and may also result in poor electrical contact or electrostatic
damage.
• Take care to avoid dropping screws into the PSR-8000 unit. If a screw
does fall in, be sure to remove it before replacing the cover and powering
up the unit. Starting the unit with a loose screw inside may lead to im-
proper operation or equipment failure. (If you are unable to retrieve a
dropped screw, consult your Yamaha dealer for advice.)
Handling the Floppy Disk Drive(FDD) and Floppy DiskHandling and Installation of Options

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 COPY
FILE/FD function on page 143.
Write protected Write enabled
YAMAHA is not responsible for damage caused by improper handling or operation.
YAMAHA provides no guarantee against disk damage.
* If SIMM memory, or hard disk fails to work properly, consult the item’s dealer or manufacturer for advice.
* Yamaha will not be held responsible for any damage or injury resuting from improper installation.
5
This lamp is always on
while the power is on.
DISK IN USE