Marantz PM-14S1 Manual de usuario descargar pdf (Pagina 32)

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MM/MC cartridge select

Therearetwotypes--MM(MovingMagnet)andMC(Moving

Coil)--ofcartridgesforturntable.

Astheoutputlevelsforthesetwotypesofcartridgesdier,

thesettingofthephonoequalizerthatismountedinthisunit

mustbeswitchedaccordingtothetypeofcartridgeforyour

turntable.Forswitching,usethePHONOMCbuttononthis

unit.

Speaker impedance

ThisisanACresistancevalue,indicatedinΩ(Ohms).Greater

powercanbeobtainedwhenthisvalueissmaller.

Protection circuit

This is a function to prevent damage to devices within the

power supply when an abnormality such as an overload,

excessvoltageoccursorovertemperatureforanyreason.

Ifamalfunctionoccursinthisunit,thepowerindicatorblinks

redandtheunitswitchestostandbymode.

Appendix

Explanation terms

Thisunitisequippedwitha protectioncircuitto protectthe

ampliercircuitsandspeakersystemfromdamage.

If the protection circuit is activated, the sound is instantly

muted.

Inthiscase,themessage“PROTECT”ashesonthedisplay

panel,andtheSTANDBYindicatoralsoashes.

Todeactivatetheprotectioncircuit,turntheunitothenback

onagainafterabout1minuteormore.

At power on

Forabout8secondsafterthepoweristurnedon,theprotection

circuit is activated, muting the sound to give the amplier

circuitstimetostabilize.Oncetheampliercircuitsstabilize,

theprotectioncircuitisreleased,andaudioisenabled.

In the event of overcurrent

Theprotectioncircuitisactivatedifcurrentexceedingacertain

levelisdetected,whichcanhappenifexcessivesignalowis

inputtotheamplieroriftheunitisconnectedtoaspeaker

system of less than 4 Ω/ohms impedance. The protection

circuitisalsoactivatedifaspeakercableshorts.

Insuchcases,themessage“PROTECT”ashesonthedisplay,

andthevolumeisautomaticallyreduced.Afterapproximately

8 seconds, the protection circuit is released. Therefore, the

volumeneedsreadjustingtocontinuenormaluse.

If the overcurrent continues, the amplier shuts itself OFF,

andtheSTANDBYindicatorashes.

Todeactivatetheprotectioncircuit,turntheunitothenback

onagainafterabout1minuteormore.

If excessive ultrabass signals are input

Theprotectioncircuitisalsoactivatedifultrabasssignalsare

input. In such a case, the STANDBY indicator ashes, and

the volume is automatically reduced. After approximately

8 seconds, the protection circuit is released. Therefore, the

volumeneedsreadjustingtocontinuenormaluse.Ifexcessive

ultrabasssignalinput continuesorif DCvoltageisdetected

owingtotroublewiththeamplier,theampliershutsitself

OFF,andtheSTANDBYindicatorashes.

Todeactivatetheprotectioncircuit,turntheunitothenback

onagainafterabout1minuteormore.

About the protection circuit

If the main-ampliﬁer overheats

Theprotectioncircuitisactivatedifthetemperatureofthemain

ampliersectionrisesaboveacertainlevel,whichcanhappen

iftheamplieriscontinuouslyusedwithexcessivesignalow

beinginputtoit.Theprotectioncircuitisalsoactivatedwhen

thespeciedoperatingtemperatureisexceeded,whichcan

happeniftheventsontopoftheamplierarecoveredorif

the amplier is installed on a cramped audio rack. In such

a case, the STANDBY indicator ashes, and the volume is

automatically reduced. After approximately 8 seconds, the

protection circuit is released. Therefore, the volume needs

readjustingtocontinuenormaluse.

If the temperature does not suciently fall within a certain

amount of time after the protection circuit activation, the

ampliershutsitselfOFF,andtheSTANDBYindicatorashes.

To deactivate the protection circuit, turn the unit o, let it

standuntilitcoolsdown,thenturnitONagain.

In the event of ampliﬁer trouble

Theprotectioncircuitisactivated,andthepoweris

automaticallyshutOFF,ifanabnormalityisdetectedinthe

powercircuit.Thesamehappensifthemainfuseinside

theamplierblows.Insuchcases,theSTANDBYindicator

ashes.

Turntheunitothenafterseveralminutesturnitonagain.

Ifthedisplaydoes notlightup,andthe STANDBYindicator

remainsashingaftertheunitisturnedonagain,theunitmay

beinfailure.

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Marantz PM-14S1 Manual de usuario Pagina 32

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