Vincent Audio SA-96 Tips Search for Errors, Burn in/ Warm up, Net frequency noise

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TIPS

SEARCH FOR ERRORS

Burn in/ Warm up

Your audio components need a certain time period until they reach maximum performance. The duration of this “warm up” time is very diffe- rent for the various elements of your audio system. Higher and homogeneous sound quality is achie- ved while keeping the device switched on.

Your audio specialist dealer has enough experi- ence to give you more information.

Net frequency noise

Some audio source devices may in combination with the amplifier cause a humming noise at power line frequency audible from your speakers. Usually, its volume varies with the volume setting of the amplifier. This is no sign of a defect or fault of your audio products but has to be eliminated. Generally, every wall-powered device connected to the ground wire of the power plug can cause this problem when connected to the amplifier.

Experience shows that this problem is mainly cau- sed by antenna-connected components (as TV-sets or Tuners), personal computers, electrostatic loud- speakers, subwoofers, record players or headpho- ne amplifiers that are connected to the audio inputs of the amplifier. Another possible reason for humming noise is electromagnetic interference of other components’ power supplies with pick-up- systems of record players (change the place of the record player for a test).

In most electric devices the ground potentials of all signals are connected to each other at one central point, where they have one common connection. If the device uses the protective conductor of the wall outlet, the corresponding wire of the line cord is connected intractably to the metal housing of the device. This is the mostly the point where the central grounding point is attached to. By doing this the housing is able to shield all signals from external radiated noise. Some main amplifiers are equipped with a “Ground Lift”-switch. If it is acti- vated, ground potential of the chassis and the pro- tective ground wire are being separated from the central signal ground point. The protective ground wire keeps its function. Sometimes this helps pre- vent noise caused by errors in grounding.

If the problem occurs and cannot be solved by yourself your audio specialist dealer will help you.

Quality of MP3 audio files

You can produce MP3 files on personal computers yourself. The programs that handle the conversi- on/encoding offer various settings here. The scan- ning frequency and resolution selected should be similar to the relevant audio CD properties of

44.1kHz and 16 bit. A data rate of 128 kbit/s (kbps) and higher should be used so as to at least come close to CD sound quality. The choice of the encoding algorithm used by the program also affects the sound quality.

Symptom

Possible Cause

Countermeasure

 

 

 

Unit does not

Mains cable is not connected to a suitable

Connect to a functioning socket using a

work after pressing

mains wall outlet.

suitable mains voltage.

the power button

Mains cable has not been firmly inserted into

Check the power cable. If necessary, ex-

 

wall power socket and the device’s socket.

change it with a suitable mains cable and

 

Otherwise it may be defective.

push its plug firmly into wall socket and the

 

 

device's power connector.

 

Unit fuse or unit is defective.

Contact your dealer.

 

 

 

No sound on both

The currently selected audio source (3)

Switch on the source unit and begin playback.

channels although

is giving no signal.

 

the unit is ready

One of the audio settings of a connected

Correct the settings in the player’s setup.

for use (LED in

DVD player (analogue/digital) has not been

 

the VOLUME knob

 

correctly selected.

 

is illuminated)

The output of the source device is not

Correct the connection.

 

 

connected or is wrongly connected e.g. not

 

 

connected to the selected input channel

 

 

terminal of the preamplifier.

 

 

Wrong input channel has been selected at

Set the amplifier (3) to the input that your

 

the amplifier.

desired source is connected to.

 

Volume setting is set too low.

Carefully increase the volume (2).

 

The amplifier is muted (MUTE-Function).

Deactivate the MUTE function (17) after,

 

 

as a precaution, reducing the volume level.

 

Main amplifier(s) has/have not been connec-

Check the connection and ready status of

 

ted correctly to the preamplifier, is/are

the main amplifier(s) and whether it is/they

 

switched off or is/are faulty.

are working.

 

The speaker cable is not properly connected

Check and tighten the speaker cables at the

 

to the main amplifier's terminals or is defective.

main amplifier and the speakers.

 

 

 

No audio playback

The source equipment is giving signal on only

Check the audio source. You can try to use it

on one channel

one channel.

at a different amplifier for a test.

 

One of the signal cables between audio

Check the cable connections, tighten them

 

source and preamplifier inputs has not yet

if necessary.

 

been plugged in or is defective.

 

 

One of the loudspeaker cables or one of

Check all the connections of the main

 

the signal cables between pre and main ampli-

amplifiers and whether the loudspeakers are

 

fier is not correctly connected or it is faulty.

working.

 

 

 

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Image 20 Vincent Audio SA-96 Tips Search for Errors, Burn in/ Warm up, Net frequency noise, Quality of MP3 audio files
Contents Vincent Vincent Sicherheitshinweise Weitere Hinweise Vorderansicht LieferumfangBeschreibung DES Gerätes Batterien RückansichtFernbedienung ZUR Besonderen Beachtung InstallationTasten DER Fernbedienung Anschluss Eines USB-SPEICHERMEDIUMS Anschluss DER AUDIO-QUELLENAnschluss Eines Aufnahmegerätes Anschluss AN Einen Oder Mehrere Endverstärker Kabelverbindungen FÜR DIE Einschaltsteuerung Power ControlAnschluss DES Kopfhörers Bedienung DES Gerätes Anschluss DES NetzkabelsIntegrierter MP3-PLAYER VOLSymptom Mögliche Fehlerursache Abhilfe Weitere Tipps FehlersucheEinspielzeit/Aufwärmen NetzbrummenTechnische Daten LEXIKON/WISSENSWERTES Audio-Quellen/Audio-QuellgeräteSafety Guidelines Other InstructionsPower Included in DeliveryDescription of the Appliance Front ViewRemote Control Power ControlRear View BatteriesButtons of the Remote Control VOL These buttons change the amplifier’s volumeProtective caps RCA connectionsConnection of a Recording Device Connection of a USB Storage MediumConnection of ONE or More Power Amplifiers Connecting HeadphonesConnections for the Standby Control Power Control Integrated MP3 Player Connection of the Power CableOperating the Appliance Tips Search for Errors Symptom Possible Cause CountermeasureBurn in/ Warm up Net frequency noiseTechnical Specifications Glossary Audio Sources/Source devicesConsignes DE Securite Autres Consignes Facade Avant Contenu DE LA LivraisonDescription DE Lappareil Telecommande Facade ArrierePiles Output RECTouches DE LA Telecommande Dépose du capot de protectionPrises RCA Fiches de raccordementsRaccordement D’UN Support Memoire USB Raccordement DES Appareils SourceRaccordement D’UN Appareil D’ENREGISTREMENT Raccordement a UN OU a Plusieurs Amplificateurs DE Puissance Branchement DUN CasqueUtilisation DE L‘APPAREIL Raccordement DU Cordon D’ALIMENTATION SecteurLecteur MP3 Integre Action Touches DescriptionConseils Resolution DE Problemes Symptom Cause possible du défaut RemèdeTemps de rodage / échauffement Ronflement du secteurCaracteristiques Techniques Symptôme Cause possible du défaut RemèdeGlossaire Terme désignant la plus faible tension dentrée quiVincent