Sylvania RS4743 User manual

OPERATINGTHESYLVANIASTEREORECEIVER RS4743

TABLE OFCONTENTS
Page
Introduction 2
Accessory Components 3
Initial Hook-Up
4
Connecting Accessory Components
AntennaConnections4
PhonoJacks4
AuxJacks4
TapeJacks4
Pre-AmptoAmpJacks4
SpeakerConnection5
UnswitchedOutlets5
SwitchedOutlet5
Protective Circuits
5
Sound System Indicators 6
Sound System Controls 6
Sound System Operation
AMTuning7
FMTuning7
Phono7
Aux7
TapePlay7
TapeRecording7
Specifications 8
Warranty 8
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.
2

INITIAL HOOK-UP
1. Connectspeakerstoappropriateterminals(N).
See"SpeakerConnection"section.
2. SlideferriterodAMantennaassembly(con-
tainedinseparatebag)intoholder(A)and plug-
inconnector.
3.ConnectleadsfromtheFMdipoleantenna(con-
tainedinseparatebag)underthe300ohmter-
minals(K).See"antennaconnections"section
forfurtherdetails.
4. PluginAClinecord(O)toa 120volt,60Hzout-
let.
CONNECTINGACCESSORY
COMPONENTS
WARNING: TOAVOIDA POSSIBLESHOCK
HAZARD, DONOTCONNECTANYACCESSORY
WHICHDOESNOTHAVEA MANUFACTURER
SUPPLIEDAUDIOOUTPUT JACK.
AntennaConnections(K)
Thejackplatehasprovisionsforattachingoutdoor
antennasforreceptionofdistantstations.
External Long Line AM Antenna
1. Connectlead-inwirefromantennatorightAM
ANTENNAterminal.
2. Connectground(left)terminaltoa goodearth
ground, suchasa waterpipe.
NOTE: TheAMferriterodmustremainattached
forproperoperation.
External FM Antenna 300Ohm
1. Connectleadsfroma 300ohmoutdoorFM
antennaunderthetwo300OHMFMAN-
TENNAterminals.
External FM Antenna 75Ohm
1. Attachcenterconductorofcoaxiallead-into
theright75OHM FMANTENNAterminal.
2. Attachoutershieldof75ohmlead-intothe
ground(left)terminal.
NOTE: UseonlyoneFMantennaeither75ohm
or300ohmatanyonetime.
PhonoJacks(B)
1. Plugturntablecablesintotheappropriateleft
andrightPHONOjacks(B).Connectground
wireunderPHONOGROUNDterminal(M).
2. ThePHONOinputmaybeusedwithceramicas
wellasmagneticcartridges.Moveswitch(L)
toappropriatesetting.CERforceramiccar-
tridgeorMAGformagneticcartridge.
Aux Jacks(C)
Plugtheoutputofaccessoryequipmentintotheap-
propriateleftandrightjacks.Typicalaccessories
are:
1. 8-track,cassette,orreeltoreeltapeplaydeck.
2. Microphoneormusicalinstrumentwithpre-
amplifier.
TapeJacks(D)
RECORD
Connecttherecordinputjacksofthetapedeckto
theTAPERECORDjacks.
PLAY
Connecttheplaybackoutputjacksofthetapedeck
totheTAPEPLAYjacks.
Pre-Amp toAmpJacks(E)
CAUTION: Inallcases,turnpoweroffbeforeremov-
ingjumpers.
Thepre-amplifiersignalsarerelayedfromthePRE-
AMPoutputjackstothepowerAMPjacks.Byre-
movingthejumpers,thesignalpathcanbeinter-
4

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 AC Outlets (I)
Plugaccessorycomponentssuchasturntablesor
tapedecksintotheseoutlets.Theseoutletsremain
onwhenthereceiverpowerswitchisturnedoff.
Switched AC 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.
5

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.
II —MONO— toengagesystemformonaural
sources.
JJ—FM—toengagesystemforFMreception.
KK—LOUDNESS—toincreasebassfrequencies
forpropertonalbalanceatlowlisteninglevels.
LL—MUTE—eliminatesinterstationnoiseand
weaknoisyFMstations.
SOUNDSYSTEMOPERATION
AM Reception
1. DepressPOWERbutton(V).
2. DepressAMbutton(HH).
3.RotateTUNINGcontrol(U)toselectdesired
stationasindicatedonAMdial(R).Reception
isoptimumwhenneedleonTUNINGmeter(Q)
isasfartorightaspossible.
FMReception
1. DepressPOWERbutton(V).
2. DepressFMbutton(JJ).
3.RotateTUNINGcontrol(U)toselectdesired
stationasindicatedonFMdial(S).Receptionis
6

optimumwhenneedleofTUNINGmeter(Q)
iscentered.
4. Tolistentoa distantstationwitha weaksignal,
releasetheMUTEswitch(LL).
Phono
1. Connectturntabletorearofunit.See "Con-
nectingAccessoryComponents"section.
2. DepressPOWERbutton(V).
3.DepressPHONObutton(EE).
4. Whenplayingmonauralrecords,depress
MONObutton(II).
5.Foradditionalinstructionsrefertoinstruc-
tionssuppliedwithyourturntable.
Aux
1. Connectaccessoryunittorearofunit.See
"ConnectingAccessoryComponents"section.
2. DepressPOWERbutton(V).
3.DepressAUXbutton(GG).
TapePlay
1. ConnecttapeequipmenttoTAPEPLAYjacks
onrearofunit.See"ConnectingAccessory
Components"section.
2. DepressPOWERbutton(V).
3.DepressTAPEbutton(DD).
4. Foradditionalinformationconsulttheinstruc-
tionssuppliedwithyourtapedeck.
TapeRecording
1. ConnecttapeequipmenttoTAPERECORD
jacksonrearofunit.See"ConnectingAcces-
soryComponents"section.
2. DepressPOWERbutton(V).
3.Selectprogramsourceasdescribedundersec-
tionsAM,FM,PHONO,orAUX.Theprogram
sourcesignalisalwayspresentattheTAPE
RECORDjacksandisnotaffectedbytheset-
tingsoftheTREBLE,BASS,VOLUMEorBAL-
ANCEcontrols.
4. Ifthetapedeckisa 3-headtypeequipped
witha tapemonitorfunction,therecording
canbemonitoredbydepressingtheTAPEbut-
ton(DD).BoththePLAYandRECORDjacks
mustbeconnectedtothetapedeck.See
Illustrationbelow.
5.Foradditionalinformationconsulttheinstruc-
tionssuppliedwithyourtapedeck.
7

SPECIFICATIONS
AMPLIFIER
*POWEROUTPUT
1KHzContinuous(RMS)power 38/38w
RatedContinuous(RMS)power
20Hz-20KHz
RatedContinuous(RMS)power
20Hz-20KHz 30/30w
Total IHF musicpower@ 1 KHz 100w
Powerbandwidth(IHF) 5Hz->30KHz
DampingFactor 20
*AIIpowermeasurementsaretaken@ 120volts/60Hertz
continuouspowerbothchannelsoperating at rateddistortion
and 8 ohms.
*AIIpowermeasurementsaretaken@ 120volts/60Hertz
continuouspowerbothchannelsoperating at rateddistortion
and 8 ohms.
*AIIpowermeasurementsaretaken@ 120volts/60Hertz
continuouspowerbothchannelsoperating at rateddistortion
and 8 ohms.
DISTORTION
Totalharmonicdistortion
(THD) at ratedpowerinput Lessthan.25%
THD at gratedpower(1KHz) Lessthan.15%
IMdistortion(60/7000,4:1) at rated
continuouspower, 8 ohms, 1 KHz
IMdistortion(60/7000,4:1) at rated
continuouspower, 8 ohms, 1 KHz Lessthan.25%
IMdistortion(60/7000,4:1) at1/2
ratedcontinuouspower, 8 ohms, 1 KHz
Lessthan.25%
IMdistortion(60/7000,4:1) at1/2
ratedcontinuouspower, 8 ohms, 1 KHz Lessthan.15%
FREQUENCYRESPONSE
Frequencyresponse at 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, 8 ohms, 1 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, 8 ohms, 1 KHz
Pre-amp out 1.4v
TapeOutput 250mv
OUTPUTIMPEDANCE
Pre-amp Out 10,000ohms
Tape out 5,000 ohms
SIGNAL TO NOISERATIO
Phono 70dbbelow 10mv
input
Phono 70dbbelow 10mv
input
Tape 75dbbelow
250mvinput
Tape 75dbbelow
250mvinput
Aux. 75dbbelow
250mvinput
Aux. 75dbbelow
250mvinput
FM TUNER
UsableSensitivity(IHF)
300ohms 1.8uV
50dbquietingsensitivity
3uv
Signal to NoiseRatio100%mod. 67db
CaptureRadio(IHF) 1.5db
FullLimiting(1db) 1.4uV
ImageRejection 53db
AlternateChannelRejection
(IHF) 55db
AlternateChannelRejection
(IHF) 55db
IFRejection@98MHz 50db
F0 + 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
AM 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 to give youa clearunderstanding of just how
you are protected.
WHO IS PROTECTED?
Theoriginalretailpurchaser. We suggest the originalretail
purchasermailthewarrantyregistrationcard to GTESylvania
tofacilitateserviceshould itbe required.
WHAT IS PROTECTEDANDFORHOW LONG?
Thereceiver andits parts are covered fortwo(2) years
fromdate of purchase.
HOWAREYOUPROTECTED?
TheSylvaniadealerfromwhom you purchasedyour
receiver, oran authorizedSylvaniaServiceContractor,will
repair or replace any partwhichfailsundernormal use
within the warranty period.
Youmustdeliveryourreceiver to yourSylvaniadealer
or an authorized,ServiceContractor'splace of business for
service...andpick itup from him whenservice has been
performed.
WHOPAYSTHE LABOR CHARGE?
Fortwo(2)yearsafter the date of purchase, the Sylvania
Dealerfromwhom you purchasedyourreceiver, oran
authorizedSylvaniaServiceContractor,willhonorthis
warrantywithout any labor or servicecharges.After
the two(2) yearwarranty period, youpayfor labor
orservicecharges.
ARE REPLACEMENTPARTSPROTECTED?
Yes, replacementparts are protected forthe balance ofthe
originalwarranty period.
WHAT IF YOUMOVE?
TheSylvaniadealer oran authorizedSylvaniaService
Contractorlocated inthe area to which you move
willhonorthiswarranty forthe balance ofthe warrantyper-
iod. Servicewill be expedited if youwillpresentyoursales
slip tothe dealer or servicecontractor inthe area to which
youmovesince he will not, initially,have any record of
yourpurchase.
THIS IS THEGTE SYLVANIA WARRANTY
We 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