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grasp the left and right edges of the case with the fin-because it affects only a small portion of each circular
gers and thumb of the right hand, and pull the casedata track, which can be fully compensated by the
open with the right thumb.playerOs error-correction circuits. But a circular
scratch that follows a data track may damage such a
The disc is held in place within the case by an
expansion hub in its center hole. To remove the disc,long continuous segment of data that it cannot be
press the hub with a finger to release the disc, thencorrected.
lift it out by gripping its edges between the fingers
and thumb. To replace the disc in the case, simply
align its center hole with the hub and press the discABOUT THE LASER
The Compact Disc player uses a solid-state semi-
onto the hub.conductor diode laser, mounted on a tracking servo
mechanism, to play the disc. The laser illuminates the
CLEANING DISCS track of microscopic pits representing the digital data
Soiled discs may be cleaned by wiping with a softbits, while photo-diodes detect the reflected illumina-
cloth, either dry or moistened with water. Do NOT usetion from the disc and convert it into an electronic sig-
nal which is then decoded to recover the musical
conventional LP record-cleaning products (cleaningwaveform in each stereo channel.
solutions, sprays, treated cloths, or anti-static prepa-
rations), nor any kind of chemical solvent (alcohol,You cannot see the laser operating, because it
benzene, et al). A severely soiled disc may beoperates at wavelength of 7800 Angstroms, which is
washed in a warm-water spray, possibly with a smallin the infrared and thus invisible to the human eye.
amount of a mild kitchen detergent added, and then
wiped dry with a clean, soft towel. The Compact Disc player is completely safe for
children to use. The laser operates at very low power
When cleaning the disc, use only RADIAL strokesand is concealed within the player mechanism. Even
(from center to edge). Never use a circular wipingwhen the player is disassembled, the laser remains
motion like that used for cleaning ordinary LPsealed within an optical system that causes its light to
records, because in wiping the disc there is a risk offocus only 1 millimeter from the lens and then diverge
scratching it. A radial scratch will do the least harmrapidly, reducing its intensity to negligible levels.
TROUBLESHOOTING
SYMPTOMPOSSIBLE CAUSE
No Power when the POWERPoor or no power plug connection at the AC outlet.Insert the power plug
button is set to ONfirmly into the AC outlet.
Disc play does not startThe disc is loaded upside down.Reload the disc with the label side UP.
The disc is too dirty.Clean the disc.
No soundIncorrect audio cable connections.Connect the CD player to the
amplifier/receiver correctly.
Incorrect amplifier/receiver operation.Make sure that the input selector
on your amplifier or receiver is set to CD.
Sound skipsThe CD player is subject to vibration or physical shock from external
sources.Change the installation location.
Remote control does not workBatteries in Remote Control handset have expired.Replace batteries.
Object obscuring remote sensor on the player.Remove any objects
directly in front of the player.
A Ohumming sound can be heardLoose cable connections. Check the cable connections, particularly the
phono connecting cables.
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