NAD C 525BEE English, About The Optical Pickup, Troubleshooting, Symptom, Possible Cause

Models: C 525BEE

1 50
Download 50 pages 3.31 Kb
Page 8
Image 8
ENGLISH

ENGLISH

ABOUT THE OPTICAL PICKUP

The Compact 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 illumination from the disc and convert it into an electronic signal which is then decoded to recover the musical waveform in each stereo channel.

You cannot see the laser operating, because it operates at wavelength of 7800 Angstroms, which is in the infrared and thus invisible to 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 to focus only 1 millimeter from the lens and then diverge rapidly, reducing its intensity to negligible levels.

FRANÇAIS DEUTSCH ESPAÑOL ITALIANO PORTUGUÊS SVENSKA

TROUBLESHOOTING

SYMPTOM

 

POSSIBLE CAUSE

 

SOLUTION

 

 

 

 

No Power when the POWER button is set to ON

Poor or no power plug connection at the AC

• Insert the power plug firmly into the AC outlet.

 

 

outlet

 

 

 

 

 

 

Disc play does not start

The disc is loaded upside down

• Reload the disc with the label side UP

 

• The disc is too dirty

Clean the disc

 

 

 

 

No sound

Incorrect audio cable connections

• Connect the CD player to the amplifier/receiver

 

Incorrect amplifier/receiver operation

 

correctly

 

• Make sure that the input selector on your

 

 

 

 

amplifier or receiver is set to CD

 

 

 

 

Sound skips

The CD player is subject to vibration or physical

• Change the installation location

 

 

shock from external sources

 

 

 

 

 

 

 

Remote control does not work

Batteries in Remote Control handset have

Replace batteries

 

 

expired

 

 

 

• Object obscuring remote sensor

• Remove any objects directly in front of the player

 

 

on the player

 

 

 

 

 

 

A “humming” sound can be heard

Loose cable connections

• Check the cable connections, particularly the

 

 

 

 

phono connecting cables

 

 

 

 

 

8

Page 8
Image 8
NAD C 525BEE English, About The Optical Pickup, Troubleshooting, Symptom, Possible Cause, Solution, No sound, Sound skips