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Irregular Shaped Discs
Be sure to use round shape discs only for this
unit and never use any special shape discs.
Use of special shape discs may cause
damage to the mechanism.
Installation Location
Make sure the DVI-9990R will not be
installed in a location subjected to:
• Direct sun and heat
• High humidity and water
• Excessive dust
• Excessive vibrations
Correct Handling
Do not drop the disc while handling. Hold
the disc so you will not leave fingerprints on
the surface. Do not affix tape, paper, or
gummed labels to the disc. Do not write on
the disc.
INCORRECT
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Disc Cleaning
Fingerprints, dust, or soil on the surface of
the disc could cause the DVD player to skip.
For routine cleaning, wipe the playing surface
with a clean, soft cloth from the centre of the
disc to the outer edge. If the surface is
heavily soiled, dampen a clean, soft cloth in a
solution of mild neutral detergent before
cleaning the disc.
Disc Accessories
There are various accessories available on the
market for protecting the disc surface and
improving sound quality. However, most of
them will influence the thickness and/or
diameter of the disc. Using such accessories
can cause the disc to be out of standard
specifications and may create operational
problems. We recommend not using these
accessories on discs played in Alpine DVD
players.
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Transparent Sheet
CORRECT
Disc Stabilizer
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