38 Upgrade and Maintenance Manual CX2550/60/70 M4
● Do not pull on, press hard, or otherwise handle the CD/DVD/BD tray
roughly.
● Do not disassemble the optical disk drive.
● Before use, clean the optical disk tray using a soft, dry cloth.
● As a precaution, remove disks from the optical disk drive when the
drive is not to be used for a long time. Keep the optical disk tray
closed to prevent foreign matter, such as dust, from entering the
optical disk drive.
● Hold CDs/DVDs/BDs by their edges to avoid contact with the disk
surface.
● Do not contaminate the CD/DVD/BD surface with fingerprints, oil,
dust, etc. If dirty, clean with a soft, dry cloth, wiping from the center to
the edge. Do not use benzene, thinners, water, record sprays,
antistatic agents, or silicone-impregnated cloth.
● Be careful not to damage the CD/DVD/BD surface.
● Keep the CDs/DVDs/BDs away from heat sources.
● Do not bend or place heavy objects on CDs/DVDs/BDs.
● Do not write with ballpoint pen or pencil on the label (printed) side.
● Do not attach stickers or similar to the label side. Doing so may cause
rotational eccentricity and abnormal vibrations.
● When a CD/DVD/BD is moved from a cold place to a warm place,
moisture condensation on the CD/DVD/BD surface can cause data
read errors. In this case, wipe the CD/DVD/BD with a soft, dry cloth
then let it air dry. Do not dry the CD/DVD/BD using devices such as a
hair dryer.
● To avoid dust, damage, and deformation, keep the CD/DVD/BD in its
case whenever it is not in use.
● Do not store CDs/DVDs/BDs at high temperatures. Areas exposed to
prolonged direct sunlight or near heating appliances are to be
avoided.
I You can prevent damage from the optical disk drive and the
CDs/DVDs/BDs, as well as premature wear of the disks, by observing
the following suggestions:
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