NAD C 525BEE About the Optical Pickup, Troubleshooting, Symptom Possible Cause Solution

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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
	•	Incorrect amplifier/receiver operation	• 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

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Contents 525BEE Important Safety Instructions Rear Panel Connections Front Panel Controls Remote Control Luokan 1 Laserplaite Klass 1 LaserapparatFront Panel Controls Power ON/OFF Quick StartRear Panel Connections Line Output Digital OutputOpen PLAY/PAUSETime StopSTAND-BY Indicator Power onPower OFF Numeric KeypadInstalling and Replacing Batteries MaintenanceCleaning Discs DeleteAbout the Optical Pickup TroubleshootingSymptom Possible Cause Solution Svenska Português Italiano Español Deutsch Français English Mise EN Marche Rapide Branchements SUR LA Panneau Arriere Sortie LigneSortie Numerique Cordon D’ALIMENTATION SecteurAffichage Ouverture OpenLECTURE/PAUSE PLAY/PAUSE Temps TimeTelecommande Marche Power onArrêt Power OFF Repetition RepeatPartir du mode d’Arrêt Stop En Mode ProgrammationClavier Numerique ProgrammationMise EN Place ET Remplacement DES Piles Disques Audio CD-R & CD-RWDisques Pouvant Être LUS PAR CE Lecteur EntretienDepannage Probleme Cause Probable Solution Propos DE LA Tete OptiqueFrontplattenelemente Power ON/OFF Netzschalter SchnellstartAufstellungshinweise Rückwandanschlüsse Line Output LINE-AUSGANGDisplay Anzeigefeld Track Number TitelnummerOpen Öffnen PLAY/PAUSE ABSPIELEN/PAUSEPower on Netz EIN Power OFF Netz AUSRepeat Wiederholungsmodus Random Zufälliges AbspielenNumerisches Tastenfeld Program ProgrammDelete Löschen Im Programm-ModusEinsetzen UND Austauschen VON Batterien STANDARD- UND Beschreibbare AUDIO-CDS CD-R/CD-RWAbspielbarkeit VON CDS WartungProblemlösung Symptom Mögliche Ursache AbhilfeHandtuch abgetrocknet werden Wissenswertes Über DEN AbtastlaserAantekening BIJ DE Installatie Bedieningselementen Frontpaneel Power ON/OFF AAN/UITSnel Beginnen Aansluitingen Achterpaneel Line OUT-UITGANGENRepeat Herhalen PLAY/PAUSE AFSPELEN/PAUZERENTime Tijd STANDBY-INDICATOR AfstandsbedieningInschakelen UitschakelenTerwijl de cd-speler is gestopt Delete WissenBatterijen Plaatsen EN Vervangen CD-R- EN CD-RW-AUDIOSCHIJFJESProblemen Oplossen MET CD’S OmgaanSchijfjes Reinigen Over DE LeeslensPage Inicio Rapido Nota Sobre LA InstalacionConexiones DEL Panel Trasero Line Output Salida DE Línea Digital Output Salida DigitalVisualizador Calendar Display Track Listing Lista DE Pistas DEOpen Abrir PLAY/PAUSE ESCUCHA/PAUSARandom Escucha AL Azar Diodo LED STAND-BYControl Remoto Teclado NumericoInstalacion Y Cambio DE Pilas Pulse en el control remotoDiscos DE Audio CD-R & CD-RW Capacidad DE Escucha DE DiscosMantenimiento Manejo DE Discos CompactosSintoma Causa Posible Solucion PowerInvestigacion DE Averias Comandi Pannello Anteriore Power ON/OFF ACCESO/SPENTO Avviamento RapidoCollegamenti Pannello Posteriore Output DI Linea Output DigitaleAcceso PLAY/PAUSE ASCOLTO/PAUSAORE RipeterePower on Accendi Power OFF SpegniRandom Casuale ScansioneDelete Cancella ProgrammaDisplay Premere il telecomandoInstallazione E Sostituzione Delle Batterie Dischi CD-R E Dischi Audio CD-RWRiproducibilitá DEL Disco ManutenzioneRicerca Guasti Sintomo Possibili Cause SoluzioneInstalação E Ligação Rápida Nota Sobre a InstalaçãoLigações do Painel Traseiro Line Output Saída DE Linha Digital Output Saída DigitalVisor PLAY/PAUSE REPRODUÇÃO/PAUSATime Tempo Stop ParagemPower on Alimentação Ligada Power OFF Alimentação DesligadaRepeat Repetir Random AleatórioTeclado Numérico Program ProgramaçãoVisor Delete ApagarInstalação E Substituição DAS Pilhas Discos Áudio CD-R E CD-RWCapacidade DE Reproduçã do Disco ManutenaçãoResolução DE Problemas Limpeza DOS CDSSobre O Dispositivo DE Leitura Óptica Sintoma Causa Possível SoluçãoHUR DU Spelar CD-SKIVOR, EN Snabbgenomgång Tänk PÅ Följande VID InkopplingAnslutningar PÅ Bakpanelen Line Output DigitalutgångSTAND-BY Lysdiod Med TIME-knappen kan du få tidsvisning på två sättScan Bakåt Programmering FjärrkontrollenSiffertangenter Batterier CD-R & CD-RW Audio SkivorVilka Skivor KAN Spelas Underhåll