JVC VR-N900U Startup Manual page 12

Getting Started
Precautions for Proper Use
of this Product (continued)
Precautions for Handling Hard Disk Drive
The distance between the head and the disk is only about
0.02 µ m when the hard disk (henceforth HDD) is reading the
data. Vibration or impact that is exerted on the HDD may
therefore cause the head to hit against the disk, hence
causing the disk surface to dent or the disk to chip. When this
occurs, data may not be properly read, or in a worse
scenario, continued use in this condition may result in head
crash (damage). Careful attention must therefore be paid
when handling it.
Precautions During Installation and Change of Installation
Location
Moving of this unit or installation work is strictly prohibited
when the power of this unit is on or immediately after the
power is turned off (approximately 1 minute). The HDD
continues to move under its own inertia for some time after
the power is disconnected, and exertion of vibration or impact
during this interval may result in HDD failure.
When moving this unit, wrap it using cushioning materials to
protect it from external shock.
Handling Precautions
● Handle this unit carefully without exerting vibration or
impact on it.
● Do not remove the power plug during recording or
playback, or when the HDD is being accessed.
● The HDD is a consumable product. Depends on the
environment in use, it is recommended to replace HDD
after using for 18,000 hours in a surrounding temperature
of 25I. (However, this is only a reference time and not a
quaranty for HDD life span. ) For inquiries on maintenance
plans and expenses, consult your nearest JVC dealers.
When installing an external hard disk, we recommend the
use of UPS (uninterruptible power supply) to ensure the
stable operation of the system.
Power failure that occurs during formatting or disconnection
of the HDD may affect its subsequent use even when the
UPS is connected.
JVC shall not be held responsible for the compensation of
losses incurred in the event that recording or playback fails
due to defects in this unit or its hard disk drive.
Images recorded on the HDD will be deleted when you
replace it with a new disk. Note also that recorded images
may be deleted when you upgrade the software for this unit.
Clock
Use of a time server is recommended to ensure recording
at an accurate time.
There may be a daily error of 10 to 20 seconds depending
on the operating environment.
The clock time may vary significantly when the lithium
battery level used for backup in this unit is running low.
Connect the time server to the LAN2 network.
4
Precautions when Moving this Unit
Remove all connected cords before moving
Turn off the power and remove the power plug before
moving this unit. Failure to do so may cause damage on
the cords, and result in fire or electric shock.
Moving of this unit or installation work is strictly prohibited
when the power of this unit is on or immediately after the
power is turned off (approximately 1 minute).
The HDD continues to move under its own inertia for
some time after the power is disconnected, and exertion
of vibration or impact during this interval may result in
HDD failure.
When moving this unit, wrap it using cushioning materials
to protect it from external shock.
Handle this unit carefully without exerting vibration or
impact on it.
Precautions for Handling Power Cords
Do not use the supplied cords on devices other than this
unit.
Do not place heavy objects on the power cord, or place it
under this unit
Doing so may cause damage on the cords, and result in
fire or electric shock.
Do not use cords other than those supplied with this unit
Use only power cords supplied together with this unit.
Using cords with different withstanding voltage
specifications or damaged cords may result in fire or
electric shock.
Do not remove the power plug during recording or
playback, or when the HDD is being accessed.
Maintenance
Turn off the power before performing maintenance of this
unit.
Wipe this unit using a soft cloth. Wiping using thinner or
benzene may cause the surface to melt or fog. When the
surface is extremely dirty, wipe using a cloth that is dipped
into a neutral detergent diluted with water, followed by
wiping with a dry cloth.
Energy Conservation
Turn off the power of the system for safety reasons and to
save energy if this unit is not to be used for a long time.
Copyright
Use of video or audio sound recorded using this unit for
commercial purposes or playing them for public viewing or
listening may be an infringement of the copyrights of their
respective authors under the copyright law.
These video (audio) recordings shall only be restricted to
personal uses, and their use without prior consent of the
copyright holder is strictly prohibited under the copyright
law.