Sylvania RS4743 Manuale utente

OPERATINGTHESYLVANIASTEREORECEIVER RS4743

TABLE

OFCONTENTS

Page

Introduction

Accessory

Components

Initial

Hook-Up

Connecting

Accessory

Components

AntennaConnections4

PhonoJacks4

AuxJacks4

TapeJacks4

Pre-AmptoAmpJacks4

SpeakerConnection5

UnswitchedOutlets5

SwitchedOutlet5

Protective

Circuits

Sound

System

Indicators

Sound

System

Controls

Sound

System

Operation

AMTuning7

FMTuning7

Phono7

Aux7

TapePlay7

TapeRecording7

Specifications

Warranty

INTRODUCTION

Youaretheownerofoneofthemost

sophisticatedandversatileaudioinstru-

mentsonthemarket.

Centertuneandsignalstrengthmeter-

ingmakepossibleoutstandingtuning

accuracy.

Theeasy-to-readcontrolpanelhaspush

buttoncontrols.

Yourreceiverfeaturesa switchedmain

andremotespeakersystemsoyoucan

operateallyourspeakersfromthecontrol

panel.

Thepossibilityofattachinga numberof

accessorycomponentsisa featureof

whichyouwillcertainlywanttotakead-

vantage.

Wehavementionedjusta fewofthemany

excitingfeatures.Asyoureadthese

instructions,youwilldiscoverthatyou

havechosena receivercapableofbeing

theheartofa trulyprofessionalaudio

system.

Readcarefullysoyoucanenjoythefull

potentialofyourSylvaniareceiver.

WARNING:

TOAVOIDPOSSIBLEFIREORSHOCK

HAZARD,

NEVEREXPOSETHISRECEIVER

ORACCESSORYCOMPONENTSTORAINORMOISTURE.IFSUCHEXPOSUREOCCURS,

REMOVETHEPLUGFROMTHEELECTRICALOUTLETANDHAVETHEEXPOSEDRECEIVER

ORCOMPONENTSCHECKEDBYA COMPETENTSERVICETECHNICIAN.

INITIAL

HOOK-UP

Connectspeakerstoappropriateterminals(N).

See"SpeakerConnection"section.

SlideferriterodAMantennaassembly(con-

tainedinseparatebag)intoholder(A)and

plug-

inconnector.

3.ConnectleadsfromtheFMdipoleantenna(con-

tainedinseparatebag)underthe300ohmter-

minals(K).See"antennaconnections"section

forfurtherdetails.

PluginAClinecord(O)toa 120volt,60Hzout-

let.

CONNECTINGACCESSORY

COMPONENTS

WARNING:

TOAVOIDA POSSIBLESHOCK

HAZARD,

DONOTCONNECTANYACCESSORY

WHICHDOESNOTHAVEA MANUFACTURER

SUPPLIEDAUDIOOUTPUT

JACK.

AntennaConnections(K)

Thejackplatehasprovisionsforattachingoutdoor

antennasforreceptionofdistantstations.

External

Long

Line

Antenna

Connectlead-inwirefromantennatorightAM

ANTENNAterminal.

Connectground(left)terminaltoa goodearth

ground,

suchasa waterpipe.

NOTE:

TheAMferriterodmustremainattached

forproperoperation.

External

Antenna

300Ohm

Connectleadsfroma 300ohmoutdoorFM

antennaunderthetwo300OHMFMAN-

TENNAterminals.

External

Antenna

75Ohm

Attachcenterconductorofcoaxiallead-into

theright75OHM FMANTENNAterminal.

Attachoutershieldof75ohmlead-intothe

ground(left)terminal.

NOTE:

UseonlyoneFMantennaeither75ohm

or300ohmatanyonetime.

PhonoJacks(B)

Plugturntablecablesintotheappropriateleft

andrightPHONOjacks(B).Connectground

wireunderPHONOGROUNDterminal(M).

ThePHONOinputmaybeusedwithceramicas

wellasmagneticcartridges.Moveswitch(L)

toappropriatesetting.CERforceramiccar-

tridgeorMAGformagneticcartridge.

Aux

Jacks(C)

Plugtheoutputofaccessoryequipmentintotheap-

propriateleftandrightjacks.Typicalaccessories

are:

8-track,cassette,orreeltoreeltapeplaydeck.

Microphoneormusicalinstrumentwithpre-

amplifier.

TapeJacks(D)

RECORD

Connecttherecordinputjacksofthetapedeckto

theTAPERECORDjacks.

PLAY

Connecttheplaybackoutputjacksofthetapedeck

totheTAPEPLAYjacks.

Pre-Amp

toAmpJacks(E)

CAUTION:

Inallcases,turnpoweroffbeforeremov-

ingjumpers.

Thepre-amplifiersignalsarerelayedfromthePRE-

AMPoutputjackstothepowerAMPjacks.Byre-

movingthejumpers,thesignalpathcanbeinter-

ruptedtoinsertaccessoryequipment.Forexample,

anenvironmentalequalizermaybeusedtoshape

frequencyresponsetosuitroomacoustics.Alter-

natively,thePRE-AMPoutputmayberoutedtoan

electroniccross-overnetwork.Thelowfrequency

outputofthisnetworkwouldbeconnectedtothe

powerAMPinputwhilethehighfrequencyoutput

shouldbeconnectedtoa separateslavepower

amplifier.Finally,thePRE-AMPoutputcouldbe

usedtodrivea slavepoweramplifierlocatedre-

motelyfromthereceiver.

NOTE:Tousebothslaveampandtheinternal

poweramp,DONOTusethemainhighlevel

slaveampoutputtofeedthereceiverpower

amp.

Eitherusetheslaveamplowlevelout-

putorusea commerciallyavailable"Y"

connectoratthereceiverPRE-AMPjacks.

Onesideofthe"Y"goestotheaccessory

input,theothergoestotheAMPjacksofthe

receiver.

Speaker

Connection(N)

Usenosmallerthan18gaugewiretoconnect

speakerstooutputterminals(N).Alwaysbesure

positiveandnegativeoutputsareconnectedto

correspondingpositiveandnegativeterminalson

thespeaker.

MAIN

Connecttheprimarypairofspeakerstothemain

terminals.

REMOTE

Connecta secondarypairofspeakerstotheremote

speakerterminals.Thesespeakerscouldbelocated

inanotherroom.

PQ-4

Connecta pairofrearchannelspeakerstoobtaina

fourchannelmatrixsound.Switch(G)canbeused

toturnoffrearspeakerswhennotinuse.

Unswitched

Outlets

(I)

Plugaccessorycomponentssuchasturntablesor

tapedecksintotheseoutlets.Theseoutletsremain

onwhenthereceiverpowerswitchisturnedoff.

Switched

Outlet

(J)

Plugassociatedelectroniccomponentssuchasan

environmentalequalizerorslaveamplifierintothis

outlet.Thisoutletwillbeoffwhenthereceiver

powerisoff.

NOTE:

Donotusethisoutletforturntables,tape

decksorothermotordrivenaccessories.

PROTECTIVECIRCUITS

Yourreceiverincorporatesthreeprotectivesys-

temstoguardagainstabnormaloperatingcondi-

tionsthatcouldcausedamagetothereceiveror

speakers.

Electronic

Current

Limiting

Protectstheamplifierfromimproperlyconnected

speakers.Iftheoutputisshortedorexcessively

loaded,

theamplifierwillautomaticallyreducethe

outputsignaltosafelevels.

Circuit

Breaker

—

Main

(H)

ProvidesprotectionagainstACpoweroverloads.

Ifyourunitsuddenlygoesoff,pushthebutton(H)

intore-setthebreaker.Donotholdthebuttonde-

pressedforanextendedlengthoftime.Iffrequent

resettingisrequiredconsultyourauthorizedSyl-

vaniaservicedealer.

Circuit

Breaker

—

Speakers

(F)

TherearetwoSPEAKERBREAKERS,onefor

eachchannel.Thesebreakerswillturnyourspeak-

ersoffautomaticallyincaseofanoverload.Turn

setoffandpushappropriatespeakerbreakerbut-

ton(F)in.Iffrequentresettingisrequiredcheck

speakerwiringforshorts,damagedspeakersor

overloadduetoimproperspeakerimpedance.

SOUNDSYSTEMINDICATORS

P—FM

MPXIndicator— lightglowswhenyou

havetunedina stereobroadcast.

NOTE:

IndicatorwillnotlightwhenMONO

buttonisdepressed.

Q—TUNINGMeter—indicatesbestFMtuning

whenneedleiscenteredandindicatesbest

AMtuningwhenneedleisasfarrightaspos-

sible.

R—AM

Dial— indicatesAMstationfrequencies

540to1600kHz.

S—FMDial— indicatesFMstationfrequencies

88to108mHz.

T—LogScale—quickreferencetuningguide

thatprovideslogscalereferencenumbers

whichcanbeusedtorelocatefavoritesta-

tions.

SOUNDSYSTEMCONTROLS

U—TUNING—toselectAM& FMstations.

V—POWER—toturnunitonandoff.

W—PHONESJack

—

topluginstereohead-

phones.

X—MAINSPEAKERSwitch— toselectmainand

PQ-4speakersystems.

Y—REMOTESPEAKERSwitch— toselectre-

motespeakersystem.

Z—TREBLE—toadjusthighfrequencysounds

suchasflutesorviolins.

AA—BASS—toadjustlowfrequencysounds,such

askettledrumsororganpedalnotes.

NOTE:

Toincreasetreble,orbassturnappro-

priateknobright;todecreaseturnleft.

Setknobincenterpositionfornormal

or"FLAT"response.

BB—BALANCE—toadjustforequallevelfromleft

andrightspeakers.

CC—VOLUME—toadjustaudiolevelonall

speakerssimultaneously.

DD—TAPE—toengagesystemforaccessorytape

play.

NOTE:

Tapebuttonmustbereleasedfor

FM.

AM,PHONO,ORAUXfunctions.

EE—PHONO—toengagesystemforphonograph

disc.play.

FF—HIandLOFilters— Highfilterreduceshigh

frequencyhissandscratchnoises.

Lowfilterreducesturntablerumble,and

acousticalfeedback.

GG—AUX—toengagesystemforauxiliarycom-

ponents.

HH—AM—toengagesystemforAMreception.

—MONO— toengagesystemformonaural

sources.

JJ—FM—toengagesystemforFMreception.

KK—LOUDNESS—toincreasebassfrequencies

forpropertonalbalanceatlowlisteninglevels.

LL—MUTE—eliminatesinterstationnoiseand

weaknoisyFMstations.

SOUNDSYSTEMOPERATION

Reception

DepressPOWERbutton(V).

DepressAMbutton(HH).

3.RotateTUNINGcontrol(U)toselectdesired

stationasindicatedonAMdial(R).Reception

isoptimumwhenneedleonTUNINGmeter(Q)

isasfartorightaspossible.

FMReception

DepressPOWERbutton(V).

DepressFMbutton(JJ).

3.RotateTUNINGcontrol(U)toselectdesired

stationasindicatedonFMdial(S).Receptionis

optimumwhenneedleofTUNINGmeter(Q)

iscentered.

Tolistentoa distantstationwitha weaksignal,

releasetheMUTEswitch(LL).

Phono

Connectturntabletorearofunit.See

"Con-

nectingAccessoryComponents"section.

DepressPOWERbutton(V).

3.DepressPHONObutton(EE).

Whenplayingmonauralrecords,depress

MONObutton(II).

5.Foradditionalinstructionsrefertoinstruc-

tionssuppliedwithyourturntable.

Aux

Connectaccessoryunittorearofunit.See

"ConnectingAccessoryComponents"section.

DepressPOWERbutton(V).

3.DepressAUXbutton(GG).

TapePlay

ConnecttapeequipmenttoTAPEPLAYjacks

onrearofunit.See"ConnectingAccessory

Components"section.

DepressPOWERbutton(V).

3.DepressTAPEbutton(DD).

Foradditionalinformationconsulttheinstruc-

tionssuppliedwithyourtapedeck.

TapeRecording

ConnecttapeequipmenttoTAPERECORD

jacksonrearofunit.See"ConnectingAcces-

soryComponents"section.

DepressPOWERbutton(V).

3.Selectprogramsourceasdescribedundersec-

tionsAM,FM,PHONO,orAUX.Theprogram

sourcesignalisalwayspresentattheTAPE

RECORDjacksandisnotaffectedbytheset-

tingsoftheTREBLE,BASS,VOLUMEorBAL-

ANCEcontrols.

Ifthetapedeckisa 3-headtypeequipped

witha tapemonitorfunction,therecording

canbemonitoredbydepressingtheTAPEbut-

ton(DD).BoththePLAYandRECORDjacks

mustbeconnectedtothetapedeck.See

Illustrationbelow.

5.Foradditionalinformationconsulttheinstruc-

tionssuppliedwithyourtapedeck.

SPECIFICATIONS

AMPLIFIER

*POWEROUTPUT

1KHzContinuous(RMS)power 38/38w

RatedContinuous(RMS)power

20Hz-20KHz

RatedContinuous(RMS)power

20Hz-20KHz 30/30w

Total

IHF

musicpower@

KHz 100w

Powerbandwidth(IHF) 5Hz->30KHz

DampingFactor 20

*AIIpowermeasurementsaretaken@ 120volts/60Hertz

continuouspowerbothchannelsoperating

rateddistortion

and

ohms.

*AIIpowermeasurementsaretaken@ 120volts/60Hertz

continuouspowerbothchannelsoperating

rateddistortion

and

ohms.

*AIIpowermeasurementsaretaken@ 120volts/60Hertz

continuouspowerbothchannelsoperating

rateddistortion

and

ohms.

DISTORTION

Totalharmonicdistortion

(THD)

ratedpowerinput Lessthan.25%

THD

gratedpower(1KHz) Lessthan.15%

IMdistortion(60/7000,4:1)

rated

continuouspower,

ohms,

KHz

IMdistortion(60/7000,4:1)

rated

continuouspower,

ohms,

KHz Lessthan.25%

IMdistortion(60/7000,4:1)

at1/2

ratedcontinuouspower,

ohms,

KHz

Lessthan.25%

IMdistortion(60/7000,4:1)

at1/2

ratedcontinuouspower,

ohms,

KHz Lessthan.15%

FREQUENCYRESPONSE

Frequencyresponse

tapeinput 7H->^70KHz

±1db

PhonoequalizationRIAAstandard ±1.5db

FILTERS

LowFilter -20db@ 20Hz

12db/octave

-20db@ 20Hz

12db/octave

HighFilter -20db@20KHz

12db/octave

-20db@20KHz

12db/octave

LOUDNESSCONTOUR

VolumeControlPosition-30db

50Hz +6db

1000Hz 0db

TONECONTROLACTION

BassControl,50Hz ±18db

TrebleControl10KHz ±12db

INPUTSENSITIVITY

Forratedcontinuouspower,

ohms,

KHz

PowerAmp 1.4v

Tape 250mv

Aux. 250mv

Phono 2.2mv

INPUTIMPEDANCE

PowerAmp 100,000ohms

Tape 100,000ohms

Aux. 100,000ohms

Phono 47,000ohms

OUTPUTLEVEL

Forratedcontinuouspower,

ohms,

KHz

Pre-amp

out

1.4v

TapeOutput 250mv

OUTPUTIMPEDANCE

Pre-amp

Out

10,000ohms

Tape

out

5,000

ohms

SIGNAL

NOISERATIO

Phono 70dbbelow

10mv

input

Phono 70dbbelow

10mv

input

Tape 75dbbelow

250mvinput

Tape 75dbbelow

250mvinput

Aux. 75dbbelow

250mvinput

Aux. 75dbbelow

250mvinput

TUNER

UsableSensitivity(IHF)

300ohms 1.8uV

50dbquietingsensitivity

3uv

Signal

NoiseRatio100%mod. 67db

CaptureRadio(IHF) 1.5db

FullLimiting(1db) 1.4uV

ImageRejection 53db

AlternateChannelRejection

(IHF) 55db

AlternateChannelRejection

(IHF) 55db

IFRejection@98MHz 50db

+ 1/2IF

Rejection

at98MHz 80dbF0

+ 1/2IF

Rejection

at98MHz 80db

AMSuppression 35db

TotalHarmonicDistortion

(THD)

FMMono

.5%

FMStereo

.5%

StereoSeparation

1KHz 35db

50Hz/10KHz 25db

FMMutingThreshold

5uV

TUNER

Sensitivity20dbS/N

30%

mod.,400Hz,

1.4MHz

200uV/m

ImageRejection

1.4MHz

60db

Selectivity±10KHz,

1.4MHz

28db

AGCFigure

ofmerit

1.4MHz

43db

AGCFigure

ofmerit

1.4MHz

43db

WARRANTY

Receivers

GTESylvaniapresents

its

warranty

toyouin

question-and-

answerform

give

youa

clearunderstanding

just

how

you

are

protected.

WHO

PROTECTED?

Theoriginalretailpurchaser.

suggest

the

originalretail

purchasermailthewarrantyregistrationcard

GTESylvania

tofacilitateserviceshould

itbe

required.

WHAT

PROTECTEDANDFORHOW

LONG?

Thereceiver

andits

parts

are

covered

fortwo(2)

years

fromdate

purchase.

HOWAREYOUPROTECTED?

TheSylvaniadealerfromwhom

you

purchasedyour

receiver,

oran

authorizedSylvaniaServiceContractor,will

repair

replace

any

partwhichfailsundernormal

use

within

the

warranty

period.

Youmustdeliveryourreceiver

yourSylvaniadealer

authorized,ServiceContractor'splace

business

for

service...andpick

itup

from

him

whenservice

has

been

performed.

WHOPAYSTHE

LABOR

CHARGE?

Fortwo(2)yearsafter

the

date

purchase,

the

Sylvania

Dealerfromwhom

you

purchasedyourreceiver,

oran

authorizedSylvaniaServiceContractor,willhonorthis

warrantywithout

any

labor

servicecharges.After

the

two(2)

yearwarranty

period,

youpayfor

labor

orservicecharges.

ARE

REPLACEMENTPARTSPROTECTED?

Yes,

replacementparts

are

protected

forthe

balance

ofthe

originalwarranty

period.

WHAT

YOUMOVE?

TheSylvaniadealer

oran

authorizedSylvaniaService

Contractorlocated

inthe

area

which

you

move

willhonorthiswarranty

forthe

balance

ofthe

warrantyper-

iod.

Servicewill

expedited

youwillpresentyoursales

slip

tothe

dealer

servicecontractor

inthe

area

which

youmovesince

will

not,

initially,have

any

record

yourpurchase.

THIS

THEGTE

SYLVANIA

WARRANTY

recommend

Sylvania

Replacement

Parts

SPECIFICATIONS

SUBJECTTOCHANGE

WITHOUTNOTICE

Entertainment

Products

Group,

700

Ellicott

Street,

Batavia,

New

York

14020

GTE

SYLVANIA

INCORPORATED

Printed

inUSA.

05-36099-1

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