
Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.
Extension Unit
Model No.
WJ-HDE510
The serial number of this product may be found on the bottom of the unit.
You should note the serial number of this unit in the space
provided and retain this book as a permanent record of your
purchase to aid identification in the event of theft.
Model No.
Serial No.
WARNING:
• To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.
• All work related to the installation of this product should be made by qualified service personnel or system installers.
• Never look into the DVD-RAM drive of this product. The laser diode incorporated in the drive emits invisible infrared
radiation which is harmful to the eyes.
The lightning flash with arrowhead symbol, within an equilateral triangle, is
intended to alert the user to the presence of uninsulated "dangerous voltage"
within the product's enclosure that may
be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating
and maintenance (servicing) instructions
in the literature accompanying the appliance.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SA 1965
SA 1966
NOTE: This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications.
Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be
required to correct the interference at his own expense.
FCC Caution: To assure continued compliance, (example use only shielded interface cables when connecting to computer or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
For U.S.A
CAUTION:
• Read the label on the bottom of the unit for identification of this product, and the power ratings.

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■Precautions
• Do not operate the appliance beyond its specified
temperature, humidity or power source ratings.
Do not use the appliance in an extreme environment
where high temperature or high humidity exists. Use
the appliance at temperatures within +5°C to +45°C
(41°F to 113°F) and a humidity below 90 %.
The input power source for this appliance is 120 V
AC 60 Hz.
• Avoid shock and vibration
Shock or vibration may damage the HDD whether in
operation or not.
Do not move the HDD for 30 seconds right after
turning off the power.
• Pay attention to static electricity
Put your hand on a metallic surface to discharge
static electricity before installation.
Do not touch components on the HDD directly with
your hand.
Always hold the HDD on both sides when installing
it.
• Avoid condensation on the surface of the HDD. Wait
until the dew evaporates in any of the following
cases:
The appliance is moved to a place where the temperature or humidity differs significantly.
The appliance is moved out of an air-conditioned
room.
The appliance is placed in an extremely humid
place.
The appliance is placed in a room where the heater
has just been turned on.
• Consumable parts
Contact your dealer for the replacement of consumables when the time comes.
The built-in hard disk needs replacement after
around 30 000 hours of operation.
The cooling fan also needs replacement after
around 30 000 hours of operation.
• Do not block the ventilation opening or slots on the
cover.
To prevent the appliance from overheating, place it
at least 5 cm (2 inches) away from the wall.
• Do not put your hands into the disk tray. Your fingers might get caught inside the DVD-RAM drive.
• Avoid condensation on the surface of the HDD and
DVD-RAM disk.
• Be sure to install the DVD Extension Unit horizontally.
■General
The WJ-HDE510 is a DVD Extension Unit for connection
with the WJ-HD500 Digital Disk Recorder for copying or
backing up recorded data. The system can be extended by connecting up to 6 extension units in an SCSI
chain while the DVD extension unit containing up to two
HDDs.
The DVD-RAM stands for digital versatile disk-random
access memory. The DVD-RAM can be stored high
capacity data for making a backup.
Available DVD-RAM disks:
Cartridge type I for 9.4 GB (DOUBLE SIDED) NON
REMOVABLE DISC
Cartridge type I for 2.6 GB (SINGLE SIDED) NON
REMOVABLE DISC
Cartridge type II for 4.7 GB (SINGLE SIDED) DISC
REMOVABLE
Cartridge type I for 5.2 GB (DOUBLE SIDED) NON
REMOVABLE DISC
Cartridge type II for 2.6 GB (SINGLE SIDED) DISC
REMOVABLE
*Cartridge type I: Disc cannot be removed from the
cartridge.
*Cartridge type II: Disc can be removed from the
cartridge.
Note: The WJ-HDE510 DVD Extension Unit is designed
for use with Cartridge type I DVD-RAM disks. Type
II DVD-RAM disks can be used only inside the cartridge. Therefore, to use type II DVD-RAM disks, do
not remove the disc from the cartridge.
• Matsushita Electric Industrial Co., Ltd. herewith
declares that it will not be liable in any way for any
loss of data or any other damage, whether direct or
indirect, caused by operation or malfunctioning of
this product. Backup important data to protect it
from possible loss.
• This product is for exclusive use in DVD-RAM drives
according to DVD Specifications ver. 2.0 for
rewritable disc.
• Please note that the WJ-HD500 requires a software
version 1.51 or later for playback the backup data
on the DVD-RAM diskdisk and installing the 80 GB
or more hard disk for extension.
Please contact your nearest dealer or sales office
for version up.

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■Cleaning the DVD Drive
The DVD drive needs to be cleaned after prolonged use.
Use the optional cleaning disc as shown below for cleaning the DVD drive.
Panasonic PD Lens Cleaner (Wet-type) LF-K123LCA1
Follow the procedure described below to clean the DVD drive of the DVD Extension Unit.
1. Turn on the power switch located on the rear of the DVD-Extension Unit.
2. Press the DVD-RAM lid to open the lid located on the front of the DVD Extension Unit.
3. Press the OPEN/CLOSE button inside the DVD-RAM drive to slide out the disk tray.
4. Insert the cleaning disc into the tray.
(Refer to the operating instructions of the cleaning disc for details.)
5. Press the OPEN/CLOSE button on the DVD-RAM drive to slide in the tray. Cleaning will start automatically.
6. Press the OPEN/CLOSE button to slide out the tray.
7. Press the OPEN/CLOSE button again to slide in the tray.
8. Close the DVD-RAM lid.
Note: The optimum cleaning frequency differs depending on the usage environment and conditions. It is recommended
though to clean the drive once every one to four months.
Disk tray
DVD-RAM lid
Cleaning disc
BUSY indicator
OPEN/CLOSE button
Handling DVD-RAM disks
• Avoid exposure to direct sunlight.
• Avoid any contact with water.
• Do not place near heat sources such as radiators,
stoves or other units that produce heat.
• Do not touch the DVD-RAM disc recording surface
directly with your hand.
• Do not press, bend or place heavy objects against
the cartridge case.
• Do not store in very dusty areas.
• Do not attach multiple labels one on top of the other
on the DVD-RAM disk, and do not paste over a label
that has been torn off.
• Keep the DVD-RAM disk in the case when not using
it.
• To protect the DVD-RAM data, set the protection to
”Write disable” position.

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■Appearance
q Operate indicator (OPERATE)
Lights in green while power is supplied to the unit.
Lights in orange when a thermal error is detected
inside the unit.
w HDD indicator (HDD 1) (HDD 2)
Lights in green while the HDD is accessed. Do not
turn off the POWER switch while any of the access
indicators is lit.
e DVD-RAM lid
Protects the DVD-RAM drive from dust. Press this lid
to install the DVD-RAM disk. The DVD-RAM lid normally should be kept closed to prevent dust from
entering the drive.
r HDD lid
Two HDD openings are provided inside the DVD
Extension Unit. Remove this lid to install the HDD.
Replace the lid after installing the HDD.
t DVD-RAM drive (tray)
y Busy indicator
Lights in green when a DVD-RAM is installed in the
DVD Extension Unit.
It changes to orange while the DVD-RAM Drive is
running.
u Eject hole
i Open/Close button
Is used for insertion or removal of the DVD-RAM
disk while the DVD-RAM lid is opened.
o Hard Disk Detection switch (HDD INSTALLED/
NOT INSTALLED)
Detects an optional HDD when one is installed.
!0 SCSI Output connector (EXT OUT)
Connect another Extension Unit with an SCSI cable.
!1 SCSI Input connector (EXT IN)
Connect the WJ-HD500 or another Extension Unit
with an SCSI cable.
!2 SCSI ID switch (SCSI ID –/+)
Press the – or + selector with a small headed screwdriver to select the desired SCSI ID in the chain.
!3 Termination switch (TERMINATOR ON/OFF)
Set this switch to ON when the Extension Unit is
located at the end of SCSI chain. Set this to OFF
unless the Extension Unit is located at the chain
end.
!4 Copy port (COPY IN)
For connecting the WJ-HD500 Digital Disk
Recorder.
WJ-HDE
Unit
Extension
HDD
HDD21
OPERATE LED WILL CHANGE TO ORANGE
IF THE INSIDE TEMPERATURE EXCEEDS OR FALLS BELOW THE LIMIT.
OPERATE
SCSI ID
TERMINATOR
-
+
1
GND
ON
OFF
SIGNAL
AC IN
POWER
EXT IN
COPY IN
EXT OUT
G
NC
THERMAL ERROR OUT
ON
OFF
HDD
INSTALLED
NOT INSTALLED