13
Operating precautions
About disc accessories
• Do not use accessories
(stabilizers, protective seals, laser
lens cleaners, etc.) sold for
“improving sound performance”
or “protecting discs.” The
changes in disc thickness or
outside dimensions made by
these accessories may cause
problems in the player.
• Please be sure NOT to attach
any ring-shape protector(or
other accessory) to your discs.
Those protectors are commer-
cially available and said to
protect disc and to improve
sound quatily(and antivibration
effect), but they can do more
harm than good in regular uses.
The most common problems are
Insert /Eject related problems
and "No playback" problems
due to the protectorring that
came off in the disc machanism.
About brand new discs
• You may notice that some brand
new discs are rough around the
center hole or outside edge.
Remove the rough edges with
the side of a ballpoint pen, etc.
Rough edges may prevent
proper loading in the deck.
Flakes from the rough edges
may also stick to the recorded
surface and interfere with
playback.
Rough Edges
Ballpoint
pen
Flakes
Recorded surface
Rough
Edges