Sanyo DSR - 300 User Manual download pdf (Page 9)

8 English

INTRODUCTION

1 BEFORE USE

Notes on handling removable HDDs

This unit uses removable hard disk drives (HDD).

Be sure to observe the following points carefully when

operating, setting-up and servicing the unit.

 Do not subject the unit to shocks or vibration.

If the unit is subjected to shocks or vibration, it may

damage the HDD or cause corruption of the data stored in

the HDD.

z Do not move the unit while the power is turned on.

Always be sure to turn off the power before removing

the unit from or placing it onto the rack.

z When transporting the unit, pack it securely using the

specified packing materials. In addition, use a method

of transportation that minimizes vibration.

z When placing the unit down on a surface such as a

floor, attach the specified feet to the base of the unit

and place it down gently.

 Do not move the unit for 30 seconds after

turning off the power.

After the power is turned off, the disk inside the HDD will

continue to spin for a brief period due to inertia, and the

heads will be in an unstable state.

During this time, the unit is even more susceptible to

shocks and vibration than when power is being supplied.

Make sure that the unit is not subjected to even gentle

vibration for at least 30 seconds after turning off the power.

 Do not operate the unit when condensation

has formed.

If the unit is operated when condensation has formed, it

may cause operating problems.

If sudden changes in the ambient temperature occur, wait

for the temperature to stablize before operating the unit.

 Notes when replacing the HDD

Be sure to follow the correct replacement procedure when

replacing the HDD.

z HDDs that have been removed from their packing may

not operate correctly if they are subjected to any shocks

and vibration. It is recommended that you place HDD

onto a soft, level surface with the printed circuit board

facing upward after unpacking it.

z Be careful not to subject the HDD to shocks or vibration

when removing and tightening screws as part of the

HDD replacement procedure. Make sure that all screws

are tightened securely so that they will not become

loose.

The HDD is sensitive to static electricity, so you should

take proper precautions to prevent static electricity

buildup.

 Handling the HDD unit by itself

If transporting or storing the HDD unit by itself, always be

sure to pack it in the specified packing first.

In addition, use a method of transportation that minimizes

the vibration.

If the HDD becomes damaged, handle the unit and the

damaged HDD that has been removed in order for it to be

replaced carefully to prevent the problem from being

aggravated until as the nature of the problem can be

checked and analyzed.

Conditions to avoid

z The hard disk is sensitive to dust, vibrations and

shocks, and should also not be used near magnetic

objects. To prevent loss of recorded data, observe the

following precautions:

z Do not subject the digital video recorder to shocks.

z Do not use the digital video recorder on a vibrating or

unstable surface.

z Do not disconnect the power plug from the wall outlet

during recording or playback.

z Do not use the digital video recorder in areas of

extreme temperature changes (10ºC or more per hour).

z Condensation may occur if the digital video recorder is

moved to an area of extremely different temperature or

high humidity. If the digital video recorder is used with

condensation inside it, operating problems may occur.

z Do not install the digital video recorder in areas of

constant vibration such as motor vehicles or trains.

The hard disk and cooling fan are

expendable items

Under use in an ambient temperature of 25ºC, the hard

disk should generally be replaced after 2 years, and the

cooling fan after 3 years. These figures are intended as

guidelines only, and are not guarantees of part

performance.

The CHANGE DISK indicator flashes if a problem occurs

in the hard disk or fan. (JP. 18)

Installation conditions

The digital video recorder has ventilation holes on its left,

rear and bottom panels. Make sure these holes are not

blocked after installation.

Do not use the unit in an area of poor ventilation such as a

bookshelf or box.

When installing the unit in a rack, ensure a gap of at least

5 cm at the top and bottom.

For important recordings

z Always make a test recording beforehand to check that

the digital video recorder’s playback is normal.

z Note that no compensation will be provided for losses

due to recording or playback problems arising from

problems with the digital video recorder or its connected

devices during operation.

z To be prepared for malfunctions or accidents, back up

important recordings periodically.

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Sanyo DSR - 300 User Manual Page 9

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