, HDCD® , High Definition Compatible Digital® and
Microsoft™ are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or
othercountries.
HDCD system manufactured under license from Microsoft
Corporation. This product is covered by one or more of the
following patents: In the USA: 5,479,168, 5,638,074, 5,640,161,
5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in
Australia:669114. Other patents pending.
ABOUT THE OPTICAL PICKUP
TheCompact Disc player uses a solid-state semi-conductor diode
laser,mounted on a tracking servo-mechanism, to play the disc.
The laser illuminates the track of microscopic pits representing
the digital data bits, while photo-diodes detect the reflected
illuminationfrom the disc and convert it into an electronic signal
which is then decoded to recover the musical waveform in each
stereochannel.
You cannot see the laser operating, because it operates at
wavelength of 7800 Angstroms, which is in the infrared and thus
invisibleto the human eye.
The Compact Disc player is completely safe for children to use.
The laser operates at very low power and is concealed within the
player mechanism. Even when the player is disassembled, the
laser remains sealed within an optical system that causes its light
tofocus only 1 millimeter from the lens and then diverge rapidly,
reducingits intensity to negligible levels.
GB
8
TROUBLESHOOTING
NO POWER WHEN THE POWER BUTTON
ISSET TO ON
•Poor or no power plug connection at
•Trigger switch is set to Auto
theAC outlet
•Insert the power plug firmly into the AC
outlet.
SYMPTOM POSSIBLECAUSE SOLUTION
DISCPLAY DOES NOT START •The disc is loaded upside down
•The disc is too dirty
•Reload the disc with the label side UP
•Clean the disc
NOSOUND •Incorrect audio cable connections
•Incorrect amplifier/receiver operation
•Connect the CD player to the
amplifier/receivercorrectly
•Make sure that the input selector on
youramplifier or receiver is set to CD
SOUNDSKIPS • The CD player is subject to vibration or
physicalshock from external sources
•Change the installation location
REMOTECONTROL DOES NOT WORK •Batteries in Remote Control handset
haveexpired
•Object obscuring remote sensor
onthe player
•Replace batteries
•Remove any objects directly in front of
theplayer
A“HUMMING” SOUND CAN BE HEARD •Loose cable connections •Check the cable connections,
particularlythe phono connecting
cables
flawed discs that are unplayable on some other players.
Nevertheless, the discs should not be abused or handled
carelessly.For best results, grasp the disc only by its edges.
CLEANING DISCS
Soileddiscs may be cleaned by wiping with a soft cloth, either dry
or moistened, with water. Do NOT use conventional LP record-
cleaning products (cleaning solutions, sprays, treated cloths, or
anti-static preparations), nor any kind of chemical solvent
(alcohol,benzene, et al). A severely soiled disc may be washed in
awarm-water spray, possibly with a small amount of a mild kitchen
detergentadded, and then wiped dry with a clean, soft towel.
When cleaning the disc, use only RADIAL strokes (from centre to
edge). Never use a circular wiping motion like that used for
cleaningordinary LP records, because in wiping the disc there is a
riskof scratching it. A radial scratch will do the least harm because
itaffects only a small portion of each circular data track, which can
befully compensated by the player’ s error-correction circuits. But
acircular scratch that follows a data track may damage such a long
continuoussegment of data that it cannot be corrected.
MAINTENANCE
Atperiodic intervals, open the disc drawer and wipe with a damp
clothto remove any loose dust.
HANDLING COMPACT DISCS
Handle Compact Discs with care. The playback of a disc will not
be impaired by small dust particles, a few light fingerprints, or
slight scratches. But large scratches, or a thick layer of oily
fingerprints, can pre-vent the player from tracking the disc.
(Incidentally, although the tracking optical pickup “plays” the
disc through its clear side, the actual data surface is embedded
directlybeneath the label, protected only by a very thin coating of
lacquer.So a scratch that cuts through the label may damage the
disc more than a similar scratch on the transparent “playing”
surface. Thus you should treat both surfaces of the disc with
care.) Severe scratches or fingerprints may cause the player to
mis-track (skipping ahead, or repeating the same passage). Less
severe damage may produce very brief bursts of high-frequency
noise. The tracking and error-correctioncircuits of this NAD CD
player are unusually sophisticated, providing secure tracking of
general, the quality of a CD-R, CD-RW are better when produced at a
lowerspeed against a higher speed on the same recorder or re/writer.
Switchthe trigger switch to off position
•