6
Precautions
• Refer all work related to the installation of this prod-
uct to qualified service personnel or system
installers.
• Do not operate the unit beyond their its specified
temperature, humidity, or power source ratings.
Use the unit at temperatures b5 °C - +45 °C
{41 °F - 113 °F} and where the humidity is between 5 % -
90 %.
The input power source for NTSC model is 120 V AC
60 Hz, for PAL model is 220 V - 240 V AC 50 Hz.
Performance and lifetime of hard disk drives are easily
affected by heat (used at high temperature) character-
istically. It is recommended to use this unit at tempera-
tures b20 °C - +30 °C {68 °F - 86 °F}.
• POWER switch
The POWER switch is located on the rear of the unit.
Even though the POWER switch is set to "OFF", the
power supply will not be cut. To cut the power supply,
unplug the power plug of the unit from the AC outlet.
When using the power supply control unit, turn off the
power of the power supply control unit.
• Built-in backup battery
Before the first use, charge the built-in backup battery
(lithium battery) by turning on the power for 48 hours or
more.
If it is not charged enough, in a case where the power
goes down, the internal clock may keep bad time or the
operative condition may be different to that before the
electric power failure.
The built-in battery life is approximately 5 years as an
indication of replacement. (This is just an indication of
replacement. We are not providing any guarantee of the
built-in battery lifetime. Replacement cost of the built-in
battery is not covered by the warranty even if it needs
to be done within the warranty period.) Ask the shop
where you purchased the unit when replacement of the
battery is required.
• Built-in hard disk drives
Hard disk drives are vulnerable to vibration. Handle
them with care.
It is possible to damage them if they are moved while
their motors are still running. Do not move them just
after turning their power on or off (for around 30 sec-
onds).
When hard disk drive trouble occurs, replace it immedi-
ately. Consult your dealer for servicing.
When replacing the hard disk drives, take notice of the
following.
• Protect the hard disk drives from static electricity.
• Do not stack them, or keep them upright.
• Do not use an electric screwdriver to fix them.
(Tightening torque: Approx. 0.49 N · m {5 kgf · cm})
• Avoid rapid changes of the temperature/humidity to
prevent condensation. (Acceptable change: within
15 °C/h {59 °F/h})
• Heat dissipation
Refer to the following to prevent fire and malfunction of
the unit.
• Do not block the ventilation openings in the cover to
prevent the unit from overheating. Maintain the unit
periodically to prevent dust from blocking openings.
• Clear a space of more than 5 cm {1.97"} from both
sides, the top, and the rear of the unit.
• The cooling fan is perishable. Contact your dealer
for servicing.
• Grounding
Confirm that the wire is connected from the SIGNAL
GND terminal to earth ground.
A grounding connection must be made before connect-
ing the power plug of the unit to the main power supply.
When disconnecting the grounding wire, make sure that
the power plug of the unit is disconnected from the
main power supply.
• Avoid placing the unit near noise sources
If the unit is placed near noise sources such as fluores-
cent lamps, noises may be produced. In this case,
rewire avoiding the noise sources, or move the unit to
the place far from them.
• Places to avoid
Do not place the unit in the following places:
• Places exposed to direct sunlight
• Places subject to having strong vibration or impact
• Near magnetic field sources such as a television or
speakers
• Place where condensation forms easily, where tem-
perature changes greatly, humid places
• Steamy and oily places such as kitchens
• Places which are not level
• Cleaning
Turn the power off when cleaning the unit. Otherwise it
may cause injuries.
Do not use strong or abrasive detergents when clean-
ing the unit body.
Use a dry cloth to clean the unit when it is dirty.
When the dirt is hard to remove, use a mild detergent
and wipe gently.
