Marantz SR-73 User manual

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SR-73
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Surround
Stereo
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WARRANTY
For warranty information, contact your local Marantz distributor.
RETAIN YOUR PURCHASE RECEIPT
Your purchase receipt is your permanent record of a valuable purchase.
It should be kept in a safe place to be referred to as necessary for
insurance purposes of when corresponding with Marantz.
IMPORTANT
When seeking warranty service, it is the responsibility of the
consumer to establish proof and date of purchase. Your pur-
chase receipt or invoice is adequate for such proof.
FOR U.K. ONLY
This undertaking is in addition to a consumer's statutory rights
and does not affect those rights in any way.
aay Ney Ves
GARANTIE
Pour des informations sur la garantie, contacter le distributeur local
Marantz.
CONSERVER L’‘ATTESTATION D’‘ACHAT
L’attestation d’achat est la preuve permanente d'un achat de valeur. La
conserver en lieur sur pour s’y reporter aux fins d’obtention d’une
couverture d’assurance ou dans Je cadre de correspondances avec
Marantz.
IMPORTANT
Pour l’obtention d’un service couvert par la garantie, il incombe au client
d’établir la preuve de lachat et d’en corroborer la date. Le recu ou la
facture constituent des preuves suffisantes.
DEUTSCH
GRANTIE
Bei Garantiefragen wenden Sie sich bitte an Ihren Marantz-Handler.
HEBEN SIE IHRE QUITTUNG GUT AUF
Die Quittung dient Ihnen als bleibende Unterlage flr Ihren wertvollen
Einkauf Das Aufbewahren der Quittung ist wichtig, da die darin
enthaltenen angaben fiir Versicherungszwecke oder bei korrespondenz
mit Marantz angefihrt werden mussen.
WICHTIG!
Bei Garantiefrangen mu der Kunde eine Kaufunterlage mit kaufdatum
vorlegen. Ihre Quittung oder Rechnung ist als Unterlage ausreichend.
NEDERLANDS |
GRANTIE
Voor inlichtingen omtrent garantie dient u zich- tot uw plaatselijke
Marantz handelaar te wenden.
UW KWITANTIE, KASSABON E.D. BEWAREN
Uw Kwitantie, kassabon e.d. vormen uw bewijs van aankoop van een
waardevol artikel en dienen op een veilige plaats bewaard te worden
voor evt, verwijzing bijv, in verband met verzekering of bij correspondentie
met Marantz.
BELANGRIJK
Bij een evt, beroep op de garantie is het de verantwoordelijkheid van de
consument een gedateerd bewijs van aankoop te tonen. Uw kassabon
of factuur zijn voldoende bewijs.
ITALIANO
CONDIZIONI DI GARANZIA
L’apparecchio e’ garantito per 365 giorni dalla data di acquisto comprovata
da un documento attestante il nominativo del rivenditore e la data di
vendita. La garanzia sara’ prestata con la sostituzione o riparazione
gratuita delle parti difettose.
Non sono coperti da garanzia difetti derivanti da uso improprio, errata
installazione, manutenzione effettuata da personale non autorizzato o,
comunque, da circostanze che non passano riferirsi a difetti di
funzionamento dell’apparecchio.
Sono inoltre esclusi dalla garanzia gli interventi inerenti |’installazione e
l'allacciamento agli impianti di alimentazione.
Gli apparecchi verranno riparati presso i nostri Centri di Assistenza. Le
spese ed i rischi di trasporto sono a carico del cliente.
La casa costruttrice declina ogni responsabilita’ per danni diretti o
indiretti provocati dalla inosservanza delle prescrizioni di installazione,
uso e manutenzione dettagliate nel presente manuale.
Per informazioni sull’'abbonamento al servizio Assistenza postgaranzia e
per conoscere |‘indirizzo dei Centri Assistenza Marantz rivolgetevi al
nostro servizio consumatori (telefono 1678-20026 — numero verde).
PORTUGUES
GARANTIA
. - . . + . v
Para informagoes sobre a garantia, contactar o distribuidor Marantz local.
GUARDAR O RECIBO DE COMPRA
O recibo 6 o registo permanente da compra que fez. Deve ser guardado
num local seguro, para ser apresentado em questdées relacionadas com
© seguro ou para quando tiver de contactar a Marantz.
IMPORTANTE
Quando procurar assisténcia técnica ao abrigo da garantia, é da
responsabilidade do consumidor estabelecer a prova e data de compra.
O recibo 6 prova adequada.
ESPANOL
GARANTIA
Para informacién sobre las Condiciones de Garantia, sirvase consultar el
Certificado que encontara en le interior del embalaje del equipo.
CONSERVE EL COMPROBANTE DE LA COMPRA
La factura es el comprobante de la adquisicién de un producto valioso.
Consérvela en lugar seguro para poder consultarla en caso necesario.
IMPORTANTE
Para disponer de servicios cubiertos por la garantia, el usuario debera
acreditar la fecha y el lugar de adquisici6n del equipo. La factura 0 recibo
de la compra constituyen un comprobante valido a tal efecto.
SS ELA
GARANTI
Fér information om garantin, kontakta Marantz lokalagent.
SPAR KVITTOT
Kvittot ar inképsbevis pa en vardefull vara. Det skall forvaras sakert och
hanvisas till vid forsakringsfall eller vid korrespondens med Marantz.
VIKTIGT
For att garantin skall galla ar det kundens sak att framstalla bevis och
datum om k6pet.
Kvitto elle faktura ar tiliradokligt bevis fér detta.

CONTENTS LIST
EN lish ....ccceesseeseccseecseeeeeeseneesanersoeeneeeeseeseseeseseeeesaeceeaeseeeseeeeseesseeseseesesaeeedaesenassenesenesseesseessenes page 3
Franca .........cecceescccecesenecenenseneecesenenaeeeenesenaeeenseseeneeeesessesseaenssusaecensonsasesensonseeerecssssenensasesennenas page 15
De@UtsCH .......ccsccsessessseeeneeeeececeeeeeeseseeeeaeeseneesensesaeeseseseneessonessneseaeseneesseeseeeetsauesssesaesesaesseenesentees Seite 27
Nederlands. ...........:ccccccsssececesenseceeeeseeeseeesesseenaeeenessoneesenessensesensasesaseneeseeeeeeesoseneaseeasanaeeseeasnua pagina 40
WtAliANO oe. ceecsseneee center ee cesceneeeerensesaeeeesesseneesenensensenensonseueesenoseneeeesoseeeeeensasansasseesasasesessenel pagina 52
POrtU QUES ........cessccecessneeeeeseneneceereseneeeeeeeseddeeseesesedeanensesedseesenenseneeeesneceeeessosuneaesenassansesenseeas pagina 64
ESPafil .........ccccesscssececsesneceneesenseeeesessenaeeeeeessenceeeessseaaeesadessseedensesssaeeasesecnersenesenserenesessenenentes pagina 76
SV@NSKA .....cccssssccsssneceneneenseceensneeeseseeseseneesseeaaseneeaessssensensesesonecscteesseeeecesseeetoegesasnnesssansanasees sidan 88
SPeiFiCAtiONS ............cccssscessnscecensacsesencecseneeeescneessnaeeeeseneessoaeetesesensossaasaeeessouaneneneessneeasonentess page 100
FIQUIES ......cecsecscesscsecessneseneetenseeeessseeesesaesesnensensneasseseceesenseusesonseseneesessusaeassnesssasasasedessseasassaenes page 101
ENGLISH: This unit meets the requirements of EEC Recommendation 82/499.
FRANCAIS: Cet appareil est conforme aux directives 82/499 de la CEE.
DEUTSCH: Dieses Gerat entspricht der EWG - Empfehlung 82/499.
NEDERLANDS: Dit apparaat voldoet aan de eisen van Aanbeveling EEG 82/499.
ITALIANO: Questo apparecchio é conforme ai requisiti della direttiva CEE 82/ 499.
PORTUGUES: Esta unidade foi concebida e manufacturada em conformidade com a
Recomendacaéo 82/499 da Conmunidade Econémica Europeia.
SVENSKA: Denna apparat 6verenstammer med bestammelserna i EEC 82/499.
ESPANOL: Este equipo cumple las Directrices 82/499 de la C.E.E.
"Este aparato lleva elementos antiparasitarios necesarios para cumplir con los limites que se
estableren en el Anexo V del Reglamento sobre Pertubaciones Radioelectricas e Interferencias
aprobado en el Real Decreto 138/1989. (B.O.E. de 9 de Febrero1989)."
Manufactured under license from Dolby Laboratories Licensing Corporation.
Additionally licensed under one or more of the following patents: U.S. number 3,959,590; Canadian
numbers 1,004,603 and 1,037,877.
“Dolby,” “Pro Logic,” and the double-D symbol are trademarks of Dolby Laboratories Licensing
Corporation.

ENGLISH
CONTENTS LIST
page
FOREWORD ............:ccccsccseccssccceesenecnsnnenssseneeseneeesesenenssneeesenaesneeeneseseeaessanecesseeaeanaeesasenssecesensnneseneresseneaoes 4
WARNING. ..............0:cccccccecesseceseeaneensnnenensanenenaeseensesenennenensensnssensnsnseessecersssseessaesaseaeeseneasaneneseneesennes 4
EQUIPMENT MAINS WORKING SETTING. ..........cccccssecssseecessenesssseasensensessoeseseneesesesesseeusaseeesesesoes 4
IMPORTANT. ...........cccccscccssncceessensensneesesnesensneeesesesassanessseneeeseaeeseneseaaaaeeeseseesananecensesescanesasereseneressees 4
HOW TO CONNECT A PLUG .........c ececcscesssersesceecesenecsssenssssnesensenesenseneasseeensasesenseeessesesusaoseaeseneeeess 4
COPYRIGHT. ...........ccccccscsscsssseeessssecenssenecsseseneeneessssesaneneenssnensananenseseseasensessesoususaoeecesaeesssonecsenarensesesnes 4
INTRODUCTION .....0......::ccscccccssscccteneenecensensensneensneesensenenssanensansesonsesnsaenesenneaneseanessaeseneasessaneesaneneeseeneon 4
INSTALLATION ...............:ccccsesecessscceensnsensssoesensceenenseseeseceessenseeseeeessegesaasaessasoeaeaasaeesendasasaneessnsossusenseceseetes 4
PRECAUTIONS. ...........:c:scccsseneesessenensseeecsseeeessanesssaeseansceesssoesansaneseoesassneesenoeasaaseresesssssneoresesenseseseeesseess 4
GENERAL PRECAUTIONG ...............::ccccssscceseeessnneecsseneceanensenenensnsanensaneesenseneesaeseseauaeassessaesaaesesaaesens 4
SR-73 FEATURES. ...........:ccsscssecesseecesssceessseecessnnecenneesaneneessneneananecseneneneceesensssasunaceesesansesonsesessesaeenenesessaes 4
USING THE SURROUND MODEG ..............cc:scccsscccssseesssesesssensnscenecssaeeesaneessssnenenseeesenseseasensensensasenenenes 5
DOLBY PRO LOGIC SURROUND .............:cccsssccsssseesseeesesousessecesssenescssnesesecneeseaeesenseseseaseseasenseusaneneeniees 5
LOCATION AND FUNCTION OF PARTS AND CONTROLS ................ccccsecccccsessneceesesesneneesensnnensenensnee 6
Rear panel COMMECTIONS ...............cccccesesseneeennenseneneaneceneenenecsenenensceseeeesescesseeseceseeasasusnensapensaneeenneaneas 6
Front panel features. ............ccccccccsssseccsscsecssseneessenssseeenssesesssaeeessenesesseseseeasenseneseaneneescapesenecneeseaseneeses 7
Remote control bus CONNECTIONS ............::cccceeceeeeeseneeseneeeeceeeeeeseeseneeeeeseasceseeeceseeesseeseneeneeneucnensentes 8
PRE OUT jacks ...............:cccccssscccssscceneneessssenenensenssensensaceesssacensaneesesedeeseaasesesseaeananeesesssssonsesenseeseasensness 8
BASIC OPERATION ...............::::ccccsssssseceeessnensesenseneneesenseecesenscnaeseeenssseeeeeenssesetsdesesaseeesanseensensanensenseneense 8
Listening to the tue ..........ccccccscccsescsseeeeessensesenenseneeseesasesenersssesenseseesesseeeseuansnensnassagensupaneaneensennanse 8
PRESETTING STATIONS ............c:ccccscscsssscenessenensnsensssenteneneesessesessneeesessanesseesasseaesaneneesaoesassaeeesenseaeeessaes 8
Manual presetting...............::cccccssssscecseseneeeeeaasenenseneassseneesenseseneeensossensensessesseeseoceneuenessssaneuseunnensenaas 8
Auto Presetting ............cccccccceecceesesseeceeesesecnensesensenensesensaneasesensneeaeesseseneceneceeseoeescsseneusensenaasansunsesueanens 8
Recalling a preset Station .............ccccccssssserecensesteeensnssssereesasesseeeneasssseeeseseosseeansuausnenensuessnpeuseussesscuses 8
Preset SCAM TUNING .........cccccccccsccsssscereesensesssoeeeesessessenecessesessaneeeenecsaasanenseseseasenesesesessaoenssensesensaneesees 8
Clearing preset Stations .....0............cccccssescceesessscecenseesecoeseseseanenseesessnnensensesenesessseceasessesueeaeessossasansas 9
ADJUSTMENTS ..........ccccccccccssceceesseceenseceeenseeeneanensessnseneasenecneasnnsaeessssensessegeesseeedaseseasnesssaeasaneeeenssanaeenss 9
Adjusting the surround level ..................c:scccccsssssoceesensnneneesensanensensessnneneesssanseserssenseecessanansenrenneaazen 9
Hall Surround, Matrix Surround and Simulated Stereo .........0.....::cccsseessseeseseeesesssensseeesssseeneneas 9
PLAYBACK OPERATION ..............::::ccccccesssseceeeeessseeeetaesseeeenenssssenensessnseeeeseesssacesesssescesenaseseaeanensenssansanes 9
Normal playback ................:cccccsssscseecessesenceeenecneneeeensesseeenensssseconsessesseeeseaaeseneneasesensenensseseessessecsanenees 9
Listening to a different audio source while watching a video SOUICE...........ccsssssecseesseesenenens 9
Video source recording OF COPYING ........cccccccsssseseeneessseneceeeensesseeeeeasseseerecsssseeeusansateneapansaaseapensaneas 9
Adjusting the digital delay time .................c:scccssssccsssneceeseessseneeeessesensereeseseesssonecoeseeescsenssssasatasenses 9
ACOUSTIC PRESET MEMORY ...............ccccsccsssseccsscessscensessasessensessseeeneseeeseseasaaeneeseneasaaseneesseneaennees 10
Setting the sleep time r...............ccccesescessssecessseessseneeseceeessueceseenssssaeseaseneescessasereeseseasuonsuessssoesesoes 10
REMOTE CONTROL OPERATION ...........:::cccssccccssecessseesssensseeseeseessseassaeesasenenseaeasasseeeseceseseseuensneeetes 10
CONTROL .........ccccccccessseccecessneeseesecsneoeseeeeensaneneeeesenaeasenensanenseneensneeserensacaceesesssaeneesaasaueasensansensererensanes 10
Learning Method ...........cccccccceeceseneecensennceeeneesenseneeenecaseesesessueaneeseaceseseasaneseusensenensenreneenseesesasecgaeas 12
Functions that can be learned ................ccccccccceeeeeee cee eeneeneeseseneeeessesseeeeaseesseaueeseneneesseaseasaeaesasenenees 12
Recalling the preset FUNCTION .............ccccccsesseneeneesesseneeeesensoneesesesseoesessenausnesveneneasoussasunparsususoeaees 12
LEARNABLE NUMBER OF BUTTONG ............:c:ccccesesseseeseneetetsteesnerssaeseenenenesseessesesesesetenseansatenennentans 13
Operation of Remote Control ...........ccccsscccssserensseceessenerssseseeeseeeeeseseaasnenseteneasasensesesasecesesssonsesooes 14
NOTES ON INSTALLATION ...........cc:ccccssssecsssesensnecessseesenseceesensanenssesesesaeeessenesecaaaeasensensaaeesensnseseosenees 14
CARE AND MAINTENANCE .............:ccccscssccsscecessereseneceeseesennsneeseseesaasanessnseeeaseaeeeeseeseseseesssoseauanens 14
CLEANING OF EQUIPMENT EXTERNAL SURFACES ......0......:ccsssseesesecseseoeeesessesesnsneesessennsensenenes 14
REPAIRS ...........ccccssscsessscssessseeesssecensscceecensaenansnseneanansanenseneaaenenseeesssanenensseeessensessseeessaaeeseqeeusensaoseanees 14
TROUBLESHOOTING. .............:cccccssccsseneessnsnsensensessanenseseneessseesensscsesssoeesesenseseaeseestessasasessesseasasenenees 14
GENERAL MALFUNCTION ..)..............::cscssessecessseecsserenssceeessseceesensessssneaseaneeseneasaasanensassasasensesseoeeneses 14

FOREWORD
This section must be read carefully before any connection is made to the
mains supply.
WARNINGS
Do not expose the equipment to rain or moisture.
Do not remove the cover from the equipment.
Do not insert anything into the equipment through the ventilation
holes.
Do not handle the mains lead with wet hands.
EQUIPMENT MAINS WORKING SETTING
Your Marantz product complies with the household power and safety
requirements in your area.
“/02" Version product can be powered by 230 V AC only.
“/05" or “/07" Version product can be powered by 240 V AC only.
This is a voltage selector (2-position or 4-position) on the rear panel of the
“/01" Version product,. Be sure to set the voltage selector to the mains
voltage of your area before using the unit.
IMPORTANT:
This apparatus is fitted with an approved moulded 13 Amp plug. To
change a fuse in this type of plug proceed as follows:
1. Remove fuse cover and fuse.
2. Fix new fuse which should be a BS1362 5A, A.S.T.A. or BSI approved
type.
3. Refit the fuse cover.
If the fitted plug is not suitable for your socket outlets, it should be cut off
and an appropriate plug fitted in its place.
If the mains plug contains a fuse, this should have a value of 5A. If a plug
without 4 fuse is used, the fuse at the distribution board should not be
greater than 5A.
NOTE: The severed piug must be destroyed to avoid a possible shock
hazard should it be inserted into a 13A socket elsewhere.
HOW TO CONNECT A PLUG
The wires in the mains lead are coloured in accordance with the following
code:
BLUE—” NEUTRAL” (“N")
BROWN—" LIVE“ (“L“)
1, The BLUE wire must be connected to the terminal which is marked
with the letter "N” or coloured BLACK.
2. The BROWN wire must be connected to the terminal which is marked
with the letter “L” or coloured RED.
3. Do not connect either wires to the earth terminal in the plug which is
marked by the letter “E” or by the safety earth symbol T or coloured
green or green-and-yellow. -
Before replacing the plug cover, make certain that the cord grip is clamped
over the sheath of the lead — not simply over the two wires.
COPYRIGHT
Recording and playback of some material may require permission. For
further information refer to the following:
~ Copyright Act 1956
~- Dramatic and Musical Performers Act 1958
~ Performers Protection Acts 1963, and 1972
- Any subsequent statutory enactments and orders
INTRODUCTION
Thank you for selecting the Marantz SR-73 AV Surround Stereo Receiver
for your AV system.
This AV Surround Stereo Receiver incorporates a number of features
designed to enhance the experience of listening to your favourite audio
sources.
Please read these operating instructions carefully. We recommend that
you read the entire user guide before you attempt to connect or operate
the player.
After you have reviewed the contents of this manual, we suggest that you
make all system connections before you attempt to operate the unit.
Refer to the diagrams at the back of this user guide. The numbers on the
diagrams correspond to those found in the text. All references to the
connections and controls that are printed in BOLD type are as they appear
on the unit.
INSTALLATION
Remember the following important points when installing the receiver.
* Do not expose the component to rain or moisture, as this may cause
damage to the receiver.
© Allreceivers produce some heat during operation and this heat must
be allowed to disperse freely. Do not cover the ventilation openings
and ensure that there is adequate ventilation space behind, beside and
above the receiver.
© Prevent extra heat from reaching the unit. Never put the receiver in the
full glare of the sun or near a heat source.
PRECAUTIONS
The following precautions should be taken when operating the equip-
ment.
GENERAL PRECAUTIONS
When installing the equipment ensure that:
- the ventilation holes are not covered;
- air is allowed to circulate freely around the equipment;
~ itis placed on a vibration-free surface;
— it will not be exposed to excessive heat, cold, moisture or dust;
— it will not be exposed to direct sunlight;
— it will not be exposed to electrostatic discharges.
In addition, never place heavy objects on the equipment.
If a foreign object or water does enter the equipment, contact your
nearest dealer or service centre.
Do not pull out the plug by pulling on the mains lead; grasp the plug itself.
It is advisable when leaving the house, or during a thunderstorm, to
disconnect the equipment from the AC outlet.
SR- 73 FEATURES
© Equipped with 7 audio inputs and 3 video inputs.
© Front 70 W x 2 (8 ohms), Centre 80 W (8 ohms), Surround 40 W x 2 (4
ohms).
5-preset acoustic memory for storing desired surround fields.
Surround decoder with digital delay control function.
Dolby Pro Logic Surround with auto input balance control function.
30-station random preset memory with auto preset memory function.
Up to 90-minute sleep timer.
Remote control unit with learning function, capable of controlling
almost any AV component.
® Motor-driven volume control with priority on sound quality.

USING THE SURROUND MODES
Four surround modes are provided for reproducing sound with a live
atmosphere. Select the surround mode appropriate to the. music/video
source and your listening room conditions.
1. Dolby Pro Logic Surround
The SR-73 features anewly developed high-performance Dolby Pro Logic
decoder chip that separates the two channels of stereo audio from movie
soundtracks, and derives left, centre, right and surround channels, With
the high separation accuracy and pinpoint placement of music, dialogue,
and surround-sound effects created by the Pro Logic system, you will be
provided with an exhilarating home theatre experience. The SR-73 allows
easy set-up and balancing of the Pro Logic system via remote contro! and
the built-in Dolby test-tone generator.
DOLBY PRO LOGIC SURROUND
Speaker positioning
1. Configuring a total system (Fig. 1 connection example)
Although this configuration requires the use of five speakers, it allows you
to experience the full effect of Dolby Pro Logic Surround. Ideally, the 3
front channel speakers should be the same. However, Doiby Pro Logic’s
Normal mode allows you to use a smaller loudspeaker for the centre
channel, directing bass signals to the left and right speakers. In this case,
a speaker with similar characteristics to the left/right speakers should be
used.
Be sure to use a shielded type of speaker for the centre speaker. If the
centre speaker is not anti-magnetic, magnetism from the speaker
may cause colour irregularity in the TV picture.
Itis often difficult to position the speakers in the ideal configuration shown
in the diagram. One of the main features of the Dolby Pro Logic Surround
system, however, is that even if the speakers cannot be arranged in the
ideal configuration, clear centralization of the sound image and a rich
feeling of expansiveness can still be obtained.
Especially with the rear speakers, even if you cannot position them on the
floor like the front speakers, you can still obtain a good surround effect by
mounting them on the wall or ceiling or on top of furniture.
* Set the CENTRE MODE selector to NORMAL or WIDE.
In Normal mode, the low-frequency component is cut from the
dialogue signal so that a small centre speaker can be used.
Wide mode is designed so that when using a centre speaker of the
same grade as the front speakers, the frequency characteristics are
such that the dialogue output is reproduced in a flat, even manner.
(Connection examples)
os} cee =
Left (L) Center (C) Right (R)
Rear speakers
(using a center speaker)
Figure?
2. Hall Surround
In an actual concert hall, the sound that reaches your ears contains not
only the direct sound from the musicians but also a complex combination
of reflected sounds and reverberations, creating a rich hall tone. Select
this mode with sources other than Dolby Surround sources.
3. Matrix Surround
This mode produces a natural spacious sound regardless of the music
source.
4. Simulated Stereo
When playing a mono source, select this mode to produce a simulated
stereo effect.
2. Configuring a minimum system
(Fig. 2 connection example)
Youcan easily set up a system to enjoy Dolby Pro Logic Surround by using
two front speakers and two surround-use rear speakers.
it does not matter whether your TV is stereo or mono, as long as it is
equipped with an external input (video input) jack.
lf different-sized speakers are used, use the larger speakers for the front
channel.
* Set the CENTRE MODE selector to PHANTOM.
In Phantom mode, the dialogue (voice sound) signal normally heard
from the Dolby Pro Logic Surround centre speaker is divided between
the left and right front speakers.
Phantom is provisional mode. In order to enjoy Dolby Pro Logic Surround,
you will need a centre channel speaker.
eS
cS) ey
TV Left (L) Right (R)
(S)
KS fe
Rear speakers
(no center speaker)
Figure 2

LOCATION AND FUNCTION OF PARTS AND CONTROLS
Rear panel connections
All connections to the rear panel should be made with the power to the
entire system turned off. To avoid confusion, connect one cable at a time
between the different components of your system. This is the safest way
to avoid cross-connecting channels or confusing signal inputs with
outputs.
@ FM antenna terminal (75 ohms)
For connecting an external FM antenna with a coaxial cable, or for
connecting a cable network.
AM antenna and ground terminals
For connecting the supplied AM loop antenna. Use the terminals
marked AM and GND.
in areas where the supplied AM loop antenna gives unsatisfactory
results, it is recommended that the receiver be connected to an
outdoor antenna. Use the AM terminal for this. An earth lead can be
connected to the GND terminal to further reduce interference.
@
LD video input jack
Connect to the video output jack of a Laser Disc player.
VCR1 video input/output jacks
Connect the IN jack to your main VCR's video output jack and
connect the OUT jack to the VCR’s video input jack.
VCR2 video input jacks
Connect the video output jacks of the second VCR to this IN jack.
© © ©
TV monitor output jack
Connect to a TV's video input jack.
This jack outputs the video signal from the source selected by the
input selector.
@
PRE OUT (CENTRE) jack
This is the pre-output jack for the centre channel. Use this jack for
connection to a main amplifier, if used.
©
CENTER speaker output terminals
Connect to the centre speaker.
) SURROUND speaker output terminals
Connect to the surround (rear) speakers.
When connecting only one surround speaker, connect its + input
terminal with the A output terminal and its - input terminal with the
C output terminal.
() PHONO input jacks
Connect to the output jacks of a turntable equipped with a moving-
magnet (MM) cartridge.
Connect the turntable’s ground wire to the GND terminal.
* |fahumming sound or other noise is heard when the ground wire
is connected, disconnect the ground wire.
@) CD input jacks
Connect to the audio output jacks of a CD player.
«®) TAPE input/output jacks
Connect the IN jacks to the cassette deck’s PLAY (OUT) jacks, and
connect the OUT jacks to the cassette deck’s REC (IN) jacks.
© DCC input/output jacks
Connect the output (PLAY) jack of the Digital Compact Cassette
(DCC) deck to the IN jack, and connect the input (REC) jack to the
OUT jack.
(™) LD audio input jacks
Connect to the audio output jacks of a Laser Disc player.
) VCR1 audio input/output jacks
Connect the IN jacks to a VCR's audio output jacks and the OUT jacks
to the VCR's audio input jacks.
VCR2 audio input jacks
Connect the audio output jacks of the second VCR to these IN jacks.
©
(P) PRE OUT jacks
These are the pre-output jacks for the front and surround channels.
Use these jacks for connection to a main amplifier, if used.
@) REMOTE jacks
Connect to a component equipped with REMOTE (D-BUS) jacks.
(See page 8.)
The D-BUS REMOTE CONTROL terminals can also be used
for the RC-5 remote control system.
@
FRONT speaker output terminals
Connect to the front speakers.
(S) AC OUTLET
Connect the AC power cords of a CD player, cassette deck, etc., of
your system. The power supply from these outlet is interlocked with
the POWER switch of the SR-73. The maximum power consumption
of the connected components must not exceed the following limit:
50 W MAX.
@ AC power cord
Plug into AC 230V household outlet.
Note on loudspeaker impedance:
The power ratings specified for this Marantz amplifier are determinec
using fixed-value test-load impedances. However, the actual impedance
of a loudspeaker system will vary with frequency, deviating from the
nominal rating. This Marantz amplifier will drive any modern loudspeaker
system with a rated impedance of 4 ohms or higher. A few newel
loudspeakers feature impedances of less than 4 ohms. The high curren:
output capability of this Marantz amplifier can provide the additiona
power necessary to drive such low-impedance speakers. However
during extended passages of high volume, the protection circuitry may
temporarily interrupt operation. {f this occurs, simply reduce the volume
accordingly. The protection circuitry is specially designed so that it cannot
affect the sound quality during normal operation.
When connecting two pairs of speaker systems to the main System 1 anc
System 2 speaker connections, check the rated impedance of each of the
speakers. Two pairs of 8-ohm speakers operated at the same time wil
produce an effective combined impedance of 4 ohms. 2 pairs of 4-ohrr
speakers will produce an effective impedance of 2 ohms; one pair of 8
ohm speakers and one pair of 4-ohm speakers will produce an impedance
of 2 and 2/3 ohms. When using System 1 and System 2 speakers at the
same time, take care to avoid prolonged operation at high power
otherwise the protection system may temporarily interrupt operation
Remember, the lower the actual impedance, the more power the receive!
must produce in order to meet the demand.

Front panel features
®
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POWER switch and STAND BY indicator
When this switch is pressed once, the power turns ON and indica-
tors appear on the display panel. When pressed again, the power
turns OFF and the STAND BY indicator lights up.
SURR. (surround) ON/OFF button
This is the switch turning the surround function ON/OFF.
When this button is in the ON position, the surround mode selected
with the SURR.(surround) button is activated. When it is in the OFF
position, the unit is in the 2-channel stereo mode.
LED display window
Shows the current surround mode, centre mode, etc.
Infrared sensor window
This window receives infrared signals from the remote control. Aim
the remote control at this sensor window for proper signal trans-
mission.
T.{test) TONE button
This button operates only in DOLBY surround mode. When pressed,
a test signal is output to each of the connected speakers in se-
quence.
This function is used to adjust the overall sound volume balance of
your surround system. Sound volume balance is adjusted using the
remote control.
To cancel the test tone, press the button again.
DELAY button
Press this button to display the surround sound delay time for five
seconds. You can change the delay time during this period by
pressing this button.
FL display window
Shows the receiving mode, selections or other various modes.
ACOUSTIC button
The acoustic memory function stores up to 5 sets of the surround
mode, centre mode, delay time and volume set-ups as preset
memories. .
This button is used when presetting or recalling the acoustic memory.
Numeric buttons 1 to 9
Use these buttons for selecting preset numbers of tuner preset
memory or acoustic memory.
0/CL(clear) button .
This button is used as both a 0 number button and as a clear button
in various modes.
P.SCAN (preset scan) button
This button is used to automatically scan the tuner’s preset stations.
When pressed, PRESET SCAN flashes on the display and the tuner
starts scanning the preset stations.
MEMO (memory) button
Press this button to enter the tuner preset memory numbers,
acoustic memory preset numbers or the sleep timer period.
VOLUME control
Adjusts the sound volume. Turn the knob clockwise to increase the
volume.
This control adjusts the volume for the front, centre and surround
speakers simultaneously. Operation is also possible from the remote
control.
@
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SPEAKERS selector buttons
Use these buttons to select speaker system 1 or 2, or both.
NOTE:
Select speaker system 1 when the surround mode is ON.
If the surround mode is switched ON while both speaker
systems 1 and 2 are selected, the selection of speaker system 2
is cancelled automatically.
SURR. MODE button
This button is used to select the surround mode (DOLBY, MATRIX,
HALL or SIMULATED STEREO). When all surround mode indica-
tors are extinguished, the unit operates in normal stereo playback
mode.
CENTRE MODE button
This button is effective only inthe DOLBY surround mode andis used
to select NORMAL, PHANTOM, or WIDE mode, depending on the
existence and type of centre speaker used in your surround system.
The selected centre mode indicator goes out when surround mode
other than DOLBY is selected.
PHONES socket for stereo headphones
This jack accepts a standard stereo headphone plug.
Note:
Turn the SURROUND MODE off when using the headphones.
SLEEP button
Press to set the sleep timer.
Function buttons
These buttons are used to select the source to be played or recorded.
The indicator will display the selected source.
BASS EQ button
Press this button to provide additional deep bass,especially for
movie soundtracks. Press again to turn the emphasis off.
MODE button
When the FM band is selected, press this button to select the auto
stereo mode or mono mode. The AUTO indicator tights up in the auto
stereo mode.
AM and FM button
Press this button to select the band of the tuner.
Each time the AM button is pressed, the MW band and LW band is
switched alternately.
BASS and TREBLE tone controls
These controls are used to adjust the tone of the sound by boosting
or attenuating the low and high frequencies. The frequency range of
each control is boosted when the control is turned inthe + direction
and attenuated when turned in the —- direction.
TREBLE: Adjusts the tone of high-frequency sound.
BASS: Adjusts the tone of low-frequency sound.
PRESET UP and DOWN buttons
During tuner reception, press these buttons to increase or decrease
the preset channel number.
TUNING UP and DOWN buttons
During tuner reception, press these buttons to increase or decrease
the receiving frequency.
BALANCE control
Adjusts the sound balance between the left and right speakers and
headphones.

Remote control bus connections
This unit is equipped with a remote control function.
Byconnecting its remote control jacks to a Marantz CD player or tape deck
equipped with remote control (D-BUS) jacks, system remote control
operation is possible.
Connect the REMOTE CONT. OUT jack of SR-73 to REMOTE CONT. IN
of other Marantz equipment, i.e. CD player or cassette deck, by using a
pin jack cable.
The sequence of connection between components is not important.
Note:
If acomponent equipped with remote control (D-BUS) jacks has an
INT/EXT switch on the rear panel, set the switch to EXT when using
the system control function.
(Connection example)
SR-73 rear panel CD piayerrear panel Tape deck rear panel
PRE OUT jacks
The SR-73 is equipped with PRE OUT jacks. The SR-73 has enough power
for normal listening, but these jacks are provided in case more power is
required. If so, connect these jacks to the main input or AUX input jacks
of the main amplifier.
MAIN IN or AUX IN
PRE OUT
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PRE MAIN AMP
BASIC OPERATION
Listening to the tuner
. Set the VOLUME control 4 to minimum.
. Press the POWER switch @ to turn on the power.
. Press the AM and FM button @ to select the desired band.
. Press the TUNING UP and DOWN buttons @ to tune in the desired
station. Pressing once for less than a half second changes the
frequency by one step. Pressing longer sequentially scans frequen-
cies in the indicated direction. Releasing the button in this state
activates the auto tuning function, which automatically scans the
frequencies until it reaches a station, at which point the TUNED and
signal level indicators light up and auto tuning stops.
5. If FM is selected, press the MODE button @? to select the desired
audio mode, stereo or mono.
6. Adjust the sound volume with the VOLUME control ®.
If necessary, adjust the sound quality with the tone controls (BASS/
TREBLE) @.
PWN
MODE button operation
When AUTO is lit up:
Stereo broadcasts are automatically received in stereo and the STEREO
indicator lights up.
To switch to mono, press the MODE button so that AUTO goes out.
PRESETTING STATIONS
With this unit you can preset up to 30 FM/AM stations in any order.
For each station, you can memorize the frequency and reception mode if
desired. Stations can be preset either manually (by you) or automatically
(by the tuner).
Manual presetting
1. Refertothe Basic operation section above to tune ina desired station.
2. Press the MEMO button @. -
MEMO starts flashing on the display. While MEMO is still flashing
(approx. 5 seconds), enter a number from 1 to 30 using the number
keys © @@.
3. When a number has been properly input, MEMO stops flashing and
goes out. The station is now stored in the specified preset memory
location.
* When entering a single digit number (5, for example), either input 05
or just 5 and wait for a few seconds.
*\f a number other than 1-30 is entered by mistake, that number
flashes on the display to indicate that it is invalid, CHOO is displayed
and the display then returns to the original frequency display.
Auto presetting
This function scans the frequencies in the selected band and automati-
cally presets all stations which can be received.
1. Set any desired band and frequency at the low end.
2. While pressing the MEMO button 4, press the TUNING UP button
@. Auto memory starts at this point. The current frequency is memo-
rized in preset memory location CH-1, CH-1 is displayed and then auto
scanning starts.
3. MEMO will flash on the display.
4. When a receivable station is picked up, scanning stops and station is
played for five seconds. During this period, the following operations
are possible:
1) The band can be changed using the FM or AM buttons @.
2) The mode can be changed using the MODE button @).
5. If no button is pressed during this period, the current frequency is
preset in location CH-2. If the TUNING UP button @ is pressed during
this period, the current frequency is skipped and scanning continues.
6. Operation stops automatically when all 30 preset memory positions
are filled or when auto scanning reaches the top end of all bands.
To stop the auto preset function in mid-operation, press the 0/
CL(Clear) button or one of the function buttons.
Recalling a preset station
1. Direct selection method using the number buttons @.
Select the desired preset station by entering two digits using the
number buttons. For preset stations 1-9, enter a O before the preset
station number ( 05 , for example). The specified preset station is
recalled as soon as the two digits are entered.
2. Sequential selection method using the PRESET UP/DOWN buttons @
Each press of the UP or DOWN button @ moves to the next or
previous preset station. You can fast forward or fast reverse through
the preset stations by pressing the UP or DOWN button @) continu-
ously. Fast forward/reverse continues until the button is released.
* If the PRESET UP or DOWN button @ is pressed while the channel
number (CHXX) is not displayed, the preset channel with the small-
est preset number will be recalled.
Preset scan tuning
1. Press the P.SCAN (preset scan) button @.
PRESET SCAN flashes on the display . (The preset station with the
smallest preset number is recalled first. If no stations have been
preset, CHOO flashes on the display and the unit returns to the
previous mode.)
2. Preset stations are recalled in sequence (CH-1 CH-2, etc.) for 5
seconds each. Preset numbers that do not contain stations are
skipped.
3. You can fast forward through the preset stations by pressing the
PRESET UP button @4 continuously.
When the desired preset station is received, cancel the preset scan
operation by pressing the PRESET DOWN button @ or the 0/CLiclear)
button @.

Clearing preset stations
You can remove preset stations from the memory using the following
procedure.
1. Recall the preset number to be cleared with the method described in
Recalling a preset station .
2. Press the MEMO button @. MEMO flashes on the display for 5
seconds. While MEMO is still flashing, press the 0/CL(clear) button
@®. CLEAR appears on the display to indicate that the specified preset
number has been cleared.
* If you wish, you can clear all of the memory contents with a single
operation, as follows:
Press the MEMO button @ and 0/CL(clear} button simultaneously.
ADJUSTMENTS
Adjusting the surround level
Use this procedure to adjust the volume of each of the front, centre, and
rear speakers when watching a movie or other video source in DOLBY
surround mode.
1. Turn the VOLUME contro! @ to the minimum position.
2. Press the SURR.(surround) button @). Select Pro-logic.
3. Press the CENTRE MODE button to the select the centre mode
corresponding to your speaker system configuration.
In this example, the centre mode is set to NORMAL.
4. Press the T.(test) TONE button ©. A test signal tone is heard from the
left, centre, right, and surround speakers in sequence.
5. Gradually turn the VOLUME contro! @ clockwise to increase the
volume.
6. Using the remote control, adjust the volume of the test tone for centre
and surround until the volume appears to be set at the same level for
all speakers.
This unit is preset so that a correct balance will be obtained under
conditions of normal use, so make adjustments only as necessary.
7. When volume adjustment is completed, press the T.(test) TONE
button ©) again so that the test signal tone stops.
Hall Surround, Matrix Surround and Simulated Stereo
® With stereo sources other than Dolby Surround sources, the surround
component is combined with the source signal. To obtain a surround
effect with these sources, use Hall Surround or Matrix Surround.
Select the desired mode by pressing the SURR.(surround) MODE
button ®
© Use Simulated Stereo mode with mono sources. In this mode, a short
time delay is inserted between the left channel and right channel
signals, creating a stereo effect.
The delay time in Simulated Stereo mode can be adjusted in the same
way as in other surround modes.
In Hall Surround mode, a stereo sum signal (L+R) is output from
the rear speakers.
In Matrix Surround mode, a stereo difference signal (L~R) is
output from the rear speakers.
In both modes, a digital delay effect is used to delay the rear
speaker sound by 2-33 milliseconds in relation to the front
speaker sound.
After having set up the system for surround mode listening,
your choice can be confirmed by pressing the SURR.(surround)
ON/OFF button @.
® In these modes, no sound is output from the centre speaker.
PLAYBACK OPERATION
Normal playback
Set the VOLUME control @ to the minimum position.
2 Press the POWER switch @ to turn on the power.
3. Press the desired function button @ according to the table shown
below.
4. Start playing the desired source.
Adjust the volume using the VOLUME contro! @.
Adjust the tone using the BASS and TREBLE controls @9.
Source component Function button
CD player cD
FM or AM FM or AM
Laser disc player LD
Video cassette recorder 1 VCR1
Video cassette recorder 2 VCR2
Turntable PHONO
Digital compact cassette deck (DCC) DCC
Cassette deck TAPE MONI
Listening to a different audio source while watching
a video source
1. Select one of the following video sources @.
LD, VCR1, VCR2
2. Then select one of the following audio sources @ @.
CD, PHONO, FM or AM, DCC
Adjust the volume using the VOLUME control @®.
Adjust the tone using the BASS and TREBLE controls @.
Video source recording or copying
In this example, the video and audio from a Laser Disc player are
recorded onto a video tape in VCR1.
1. Press the LD function button @.
2. Start playing the Laser Disc player.
3. Start recording on VCR1.
For details of playback and recording, refer to the instruction manuals
provided with the video components.
Copying video and audio from VCR2 to VCR1
1. Press the VCR 2 function button @.
2. Start playing the tape in VCR2.
3. Start recording on VCR1.
Adjusting the digital delay time
. Press the SURR.(surround) button @ to select the desired surround ©
mode.
2. Press the DELAY button ©. The currently set delay time appears on
the display for 5 seconds.
3. When the DELAY button © is pressed while the delay. time is being
displayed, the delay time increases in 5 ms steps in the range from 5
to 30 ms. Pressing the button while the displayed delay time is 30 ms
increases it to 33 ms, the next press returns it to 2 ms, and a further
press increases it to 5 ms, after which the 5 ms increase per press
resumes.
4. The adjustment range is 15-30 milliseconds in DOLBY mode and 2-33
ms in all other modes.
The last setting of delay time in each surround mode is memorized
even when the power is switched off.
* This operation is also possible using the remote control.

ACOUSTIC PRESET MEMORY
©@ The acoustic memory function allows the storage of up to 5 combined
settings of surround mode with digital delay time, centre mode, and
surround and centre level volumes, under 5 presets.
Presetting method
1.
2.
Select the surround mode to be preset, set the delay time and, on the
remote control, set the surround and centre volumes.
Press the ACOUSTIC button ®. The ACOUS indicator appears on the
display, and the indicator flashes at 0.2-second intervals if no acoustic
memory has been preset yet.
. Press the MEMO button @ within 2 seconds of the above. The
ACOUS and MEMO indicators will flash.
. Select the preset number to store the set-up by pressing one of
numeric buttons 1 to 5.
. Within 8 seconds of the above, press the MEMO button @®. Presetting
is now complete.
Recalling a preset
ie
2.
Press the ACOUSTIC button ®.
Press one of numeric buttons 1 to 5 to select the acoustic preset
to be recalled.
* Presetting and recalling are also possible using the remote control.
Setting the sleep timer
Set the sleep timer while the power is turned on.
1.
2.
3.
Turn the power ON and press the SLEEP button @).
SLEEP flashes on the display.
Within 8 seconds, press the MEMO button @.
SLEEP 10° is displayed.
Press the SLEEP button 48)a number of times to set the desired sleep time.
Each press of the SLEEP button @® changes the display in the following
order: 10 + 20 — 30 — 40 — 50 > 60 — 90 — 10.
. Press the MEMO button 42 to complete the setting.
SLEEP stops flashing and lights up steadily.
If the MEMO button @ is not pressed within 8 seconds, the sleep
timer is automatically cancelled.
*While the sleep timer is activated, the remaining time can be
displayed for about 2 seconds by pressing the SLEEP button 4.
* To cancel the sleep timer, press the SLEEP button and then press
the 0/CLiclear) button @.
REMOTE CONTROL OPERATION
The remote control unit provided with the SR-73 is a learning-type,
programmable unit capable of controlling almost any component in your
system, as well as the MARANTZ D-BUS components (RC-5). The
components to be controlled can be selected with three slide switches.
1. RC-5/USER/LEARN switch (MODE select switch)
In the RC-5 position, all buttons output RC-5 codes only. In the USER
position, the previously learned remote control codes can be output,
but RC-5 codes are output with buttons which have not learned any
function. The LEARN position is used when programming codes under
the buttons.
. TUNER/CD/TAPE/DCC TV/LD/VCR1/VCR2 switch
(System select switch 1)
This switch selects the control targets between audio and video
components. Set this switch according to the component to be controlled.
. TU (Tuner)/TV/VCR CD/LD switch (System select switch 2)
Also set this switch according to the component to be controlled.
To select an input source:
Select the desired source by pressing the input selector button. For
example, press the CD button when playing CD, the PHONO button when
playing analogue disc or the VCR1 button when playing VCR1. When the
SR-73 receives a signal from the remote control, the name of the selected
source is displayed on the SR-73.
To carry out an operation such as playing a CD or tape:
First, select the component to be controlled. When playing a CD, use the
buttons in the frame entitled CD/LD on the remote control. When the CD
is ready to play, press the PLAY button on the remote control. Press the
STOP button to stop playback.
When playing a tape, use the buttons in the frame entitled TAPE/VCR1 on
the remote control unit. When the tape is ready to play, press the PLAY
button.
A component which can be controlled through D-BUS (RC-5) is selected
automatically by the SR-73 upon receipt of the play signal from the remote
control.
During tape recording, the recording condition can be monitored by
selecting the TAPE button.
10
CONTROLS
USER
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RC-73SR
PROGRAMMABLE REMOTE CONTROL UNIT
[4] Mode select switch
This switch selects the D-BUS (RC-5), USER or LEARN mode.
System select switches
These switches select the component to be controlled.
A component can be selected by combining these two switches.
POWER button
Switches the power of the SR-73 on and off. Press to turn the
power ON, and press again to turn it OFF. This button does not have
the learning function.
TAPE/VCR1 operation buttons
VCR1 POWER button
Power switch of VCR1.
TVVCR1 DECK A select button
When VCR1 is selected, use this button as the TV/VIDEO switch.
When TAPE is selected, use this button to select deck A if a dual deck
is used.
CH w /DECK B button
When VCR1 is selected, press this button to decrease the TV
channel. When TAPE is selected, press this button to select deck B
if a dual deck is used.

CH &/DIRECTION (<>) button
When VCR1 is selected, press this button to increase the TV channel.
When TAPE is selected, use this button as the direction button if an
auto-reverse deck is used.
REC ( @ ), REW (<#44), FF (>), PAUSE (I), STOP (I) and PLAY
(>) buttons
Operation buttons of VCR1 or tape deck. To use the REC ( @ ) button,
first press this button and, while holding it down, press the PAUSE (1B)
button. Pressing the REC ( @ } button alone cannot start recording.
DCC/VCR2 operation buttons
LD/VCR2 POWER button
Power switch of LD player or VCR2.
TVNVCR2 button
Use this button as the TV/VIDEO switch of VCR2.
CH ¥ button
Press this button to decrease the TV channel of VCR2.
CH &£/DIRECTION (<>) button
When VCR2 is selected, press this button to increase the TV channel.
When DCC is selected, use this button as the direction button if an
auto-reverse deck is used.
REC (@) /APPEND button
When VCR2 is selected, use this button as the REC button. When
DCC is selected, use this button as the APPEND button. To use this
button, first press this button and, while holding it down, press the
PAUSE (fll) button.
REW ( <#4) and FF (> ) buttons
These buttons also control the LD player as well as the VCR2 and
DCC.
PAUSE (88). STOP (Mf) and PLAY () buttons
Operating buttons of VCR2 and DCC
CD/LD operating buttons
PREVIOUS (4), NEXT ( bb), PAUSE (I), STOP (I) and PLAY
(> ) buttons
Operating buttons of CD player or LD player
TV/TUNER operating buttons
TV POWER button
Power switch of TV
CH VY and CH & buttons
Press these buttons to increase or decrease the TV channel or the
tuner preset channel of the SR-73.
TUNE /DISC [B]/- button
Use this button for decreasing the tuner reception frequency of the
SR-73, decreasing the CD changer disc number or for selecting the
playback of side B of an LD. The function of this button is determined
according to the system select switches.
TUNE.«#/DISC+/ [A] button
Use this button for increasing the tuner reception frequency of the
SR-73, increasing the CD changer disc number or for selecting the
playback of side A of an LD. The function of this button is determined
according to the system select switches.
P.SCAN (preset scan)/VIDEO button
The SR-73 preset scan button. The TUNER input is selected auto-
matically when this button is pressed.
When TV is selected, use this button as the video input selector.
MUTE button
Muting button of TV sound
TV VOLUME UP (4&)/DOWN (¥) buttons
Volume UP/DOWN buttons of TV
MEMO button
Memory enable button for various preset functions
1 to 9 buttons
Numeric entry buttons
14
— nn
Note:
When entering digits using the 1 to 9 and 0/CL buttons, be sure
to set the SYSTEM switch beforehand according to the compo-
nent to be controlled.
To control the SR-73, set the SYSTEM switch to TUNER.
0/CL (clear) button
Numeric button for entry of 0. Also used for cancelling various modes
of the SR-73.
* This button deletes the contents of the preset scan and auto preset
memory function.
Input selector buttons
Press one of these buttons to select the source to be played.
Surround selector buttons
SURR (surround) mode select button
This button selects the surround modes.
CENTRE mode select button
This button can be used only when the surround mode is PRO
LOGIC, and is used to select the centre mode.
[S] (surround level) VOLUME UP (4&)/DOWN (¥) buttons
These buttons are only provided on the remote contro! and can only
be used when one of the surround modes has been selected. They
are used to increase or decrease the surround channel volume.
(centre level) VOLUME UP (4)/DOWN (¥) buttons
These buttons are only provided on the remote control and can only
be used when the surround mode is PRO LOGIC. They are used to
increase or decrease the centre channel volume.
ACOU (acoustic) button
This button is used for presetting or recalling surround mode and
volume set-ups with the acoustic memory function.
T.TONE (Test tone) button
When the surround mode is PRO LOGIC, use this button in the
volume level calibration of each speaker. When this button is
pressed, pink noise is output from each speaker in sequence.
DELAY button
Use this button to set the delay time of the surround channel of each
surround mode.
MUTE button
Muting button of the SR-73. Press this button to temporarily de-
crease the volume. Press again to return to the previous volume.
MASTER VOLUME UP (4)/DOWN (¥) buttons
Master volume control of the SR-73. These buttons increase or
decrease the front, surround and centre channel volumes simultane-
ously.
TX indicator
This indicator lights up when a remote control button is pressed to
transmit a remote control signal to the main unit. If this indicator
becomes dim, this means that the batteries are exhausted. Replace
both batteries with new ones.
LEARN indicator
This indicator lights up when a button to be programmed is pressed
in learning mode. The light goes off after the signal has been received
and memorized. For details refer to the Learning section following
this section.
Note :
Refer to the user guide of each component for the use of the
buttons, except in the case of receiver operation.
DCC TEXT button
This button is used to display the text of a DCC player when the
system switch is in the DCC position.
Refer to the user guide of the DCC player.
SLEEP TIMER button
This button is used for setting the sleep timer. !t can be operated in
the same way as the button on the unit.

Learning method
® This remote control (RC-73SR) can learn, or program in itself, the
remote control code of any function preset under any button of the
remote control of any system component, except for the POWER
switch of the SR-73. The functions of the components that can be
controlled through the D-BUS (RC-5) need not be learned, but the
functions of other components must be learned before they can be
controlled from the RC-73SR remote control. To make the RC-73SR
learn the remote control code of a function of acomponent, follow the
learning procedure described below.
=_
. Set the mode switch to LEARN.
2. Select the type of component by combining the positions of two
system switches. For example, to have the RC-73SR learn the func-
tions of the LD player, set system switch 1 to TV/LD/VCR1/VCR2, and
set system switch 2 to CD/LD.
3. On the RC-73SR, press the button corresponding to the function to be
learned. For example, if the function to be learned is playback, press
_ the PLAY (Bm) button on the remote control. The Learn indicator will
light up.
4. Place the remote control of the component with the function to be
learned ata distance of about 20 cm (8 inches) from the RC-73SR, with
the head (transmitting end) of the former remote control pointing
towards the head of the RC-73SR.
5. Onthe remote control unit of the component, press and hold down the
button of the function to be learned, until the learning indicator of the
RC-73SR starts to flash and then goes off. The learning operation is
complete when the indicator goes out.
6. Set the mode switch to USER.
Note:
When the system mode switch is in the USER position, the buttons
which have not learned any function output the D-BUS (RC-5) codes
when they are pressed. In the RC-5 (D-BUS) position, all buttons
output the D-BUS (RC-5) codes. The REC (@) and APPEND buttons
are usually used together with the PAUSE button. However, if the
REC or APPEND button has learned a function of another compo-
nent, pressing the button together with the PAUSE button cannot
output the desired code. When the REC (@) or APPEND button has
learned a function, that button should be pressed alone; this re-
quires care in order to avoid erroneous, unintended recording.
Functions that can be learned
The RC-73SR remote control includes the buttons which can learn the
remote control code of only one function and the buttons which can learn
the remote control codes of two to four kinds of functions depending on
the system switch combination.
The numeric buttons can learn four functions, while the TY POWER
button can learn only one function.
The number of functions that can be learned by each button is shown in
the table below. In the table, each area enclosed in a frame indicates one
function that can be learned. Basically, four areas can be selected by
combining the two system switches, while some buttons can learn only
one function, in order to avoid confusion.
* Buttons marked ? output the remote control codes which are not used
with the SR-73.
12
Note:
The RC-73SR remote control incorporates a large-capacity RAM, so
that almost all buttons can learn several functions. All buttons can
learn the remote control codes of the D-BUS (RC-5) format.
Note:
in the table, the buttons with the TOTAL number of 1 can learn only
one function, regardless of the system switch positions. These
buttons therefore always output the same remote control code.
Meanwhile, with other buttons, the remote control codes they can
learn vary, depending on the system switch positions, so care is
required. If itis necessary to always output the same remote control
code from a button which can learn many, change the system switch
positions and let it learn with every combination. For example, the
[VCR2/LD] POWER button of No. 30 can learn a total of four remote
control codes with the four combinations of the system switch
positions. If itis necessary to output only the remote control code of
the POWER button of VCR2, it should learn the same code four times
with four combinations of the two system switches. In this way, you
can controi the components without worrying about the system
switch positions.
Recalling the preset function
Even after a button has learned the remote control code of a function,
its originally preset D-BUS (RC-5) code can be recalled at any time by
following the procedure below.
. Set the mode switch to LEARN.
2. Press the POWER button (the SR-73 power switch) and the button
which has learned a function simultaneously.
3. Set the mode switch to USER.
=
* Learning button indications
Although the learning buttons can be used to operate various compo-
nents, the indications printed above the buttons are Marantz D-BUS
(RC-5) preset code indications. To make it easier to remember which
buttons perform which operations, therefore, we recommend that
you program operations into buttons having the same or similar
indications.
* There are some situations where programming is not possible.
in the following instances, both the TX and LEARN LEDs will flash to
indicate that programming cannot be carried out:
(1) When the remote control's memory is full.
(2) When you attempt to program a command from a remote
control using a different signal transmission format.

LEARNABLE NUMBER OF BUTTONS
| No. SYSTEM SEL. SW-1 TUNER/CD/TAPE/DCC TV/LD/VCRI/VCR2
(\ / OF SYSTEM SEL SW-2 TU/TVVCR] CD/LD |TU/TWVCR} CD/LD TOTAL
\ (~ ~ BUTTON BUTTON NAME
x SS —) 10 0/10 1 2 3 4 4
"1 CHW 1 2 3 4 4
tea
VOR?
ROS
USER
EARN
12
CHa
1
2
344
TAPE
TV 13
TU.w/DSC
B/-
1
2
3
44
pce tb rep] 14 TU.a/DSC+/A 1 2 3 4 4
Po TEXT SLEEP 15 {CD/LD} PLAY 1 2 2
— GD (é33| Cs 16 [CD/LD] STOP 1 2 2
vCRVIV. CH_A 7 (CD/LD] PAUSE 1 2 2
eA en ea C2 Go ca 18 {[CD/LD INEXT 1 2 2
< xe 19 [CD/LD1 PREVIOUS 1 2 2
20 IVCR 1] POWER 1 1
21
{TAPE/VCR
1
IREC
1
22
Ga een ) Gu i ‘Ea ) GD 22 [TAPE/VCR 1] DIR/CH& 1 2 2
Apeeno 23 [TAPE/VCR 1] B/CHW 1 2 2
24 [TAPER 1] A/TVVCR 1 1 2 2
Ga
Ga)
ca
CD)
2D
Ga GD
25
[TAPE/VCR
1]
PLAY
1
22
26 (TAPE/VCR 11 STOP 1 2 2
ca cD Ca) GO ca ca 27 ITAPE/VCR 1} PAUSE 1 2 2
28 [TAPE/VCR 1] FE 1 2 2
GD on an ‘ca so) uD 29 ITAPE/VCR 1] REW 1 2 2
30 [VCR 2/LD] POWER 1 2 3 4 4
co 31 (DCC/VCR 2] APPEND/REC 1 2 2
4 5 6 32 IDCC/VCR 2] DIR/CHa 1 2 2
33 IDCC/VCR 21 CHW 1 2 2
MEN 34 [DCC/VCR 2] TV/VC2 1 2 2
c Go cH Go toa 35 {DCC/VCR 2] PLAY 1 2 2
36 [DCC/VCR 2] STOP 1 2 2
Ge Gp G7 aa Gy Ga 37 [DCC/VCR 2] PAUSE 1 2 2
(43) a) U2) 45) 38 [DCC/VCR/LD 2] FF 1 2 3 3
LD 1—vcR_=2 39 [DCC/VCR/LD 2] REW 1 2 3 3
40 [SR-73] POWER ON/OFF 1 1
CENTER SURR ACOU 41 PHONO 1 1
(60) Ga GA 42 cD 1 1
wove 1 TONE 43 DCC 1 1
te2)-t6D)
Ges
44
LD
1
1
vo. 5) DELAY MUTE 46 TAPE 1 1
cnc) Gi CD sw : :
48 AM/FM 1 1
mwecn meen unex 49 [TUNER/TV] P.SCAN/VIDEO 1 2 2-
RC-73SR 50 MEMO 1 1
PROGRAMMABLE
REMOTE
CONTROL
UNIT
51
(TV]
MUTE
1
1
\. / \ 52 MASTER VOL UP 1 1
/ \ 53 MASTER VOL DOWN 1 1
J
Vy
54
[SR73]
MUTE
1
1
55 LD 1 1
56 TEST TONE 7 1
57 ACOUSTIC 1 1
No. SYSTEM SEL.SW-1 TUNER/CD/TAPE/DCC TW/LD/VCRI/VCR2 58 DIGITAL DELAY 1 1
OF SYSTEM SEL. SW-2 TU/TW/VCR| CD/LD TUTWVCR| CD/LD TOTAL 59 SURROUND MODE 1 1
BUTTON
BUTTON
NAME
60
CENTER
MODE
1
1
1 1 1 3 3 4 4 61 SURROUND VOL UP 1 1
> 3 1 > 3 4 1 62 SURROUND VOL DOWN 1 1
3 3 1 > 3 | 4 63 CENTER VOL UP 1 1
4 4 1 3 3 4 4 64 CENTER VOL DOWN 1 1
5 5 1 , 3 4 ri 65 [TV] VOLUME UP 1 1
6 6 1 - 3 A 4 66 {TV] VOLUME DOWN 1 1
; ; > 3 4 ri 67 TEXT 1 | 2 2
3 3 1 > 3 Fi 4 68 SLEEP TIMER 1 1
9 9 7 2 3 4 4 | ALL TTL 140
13

Operation of Remote Control
1. Remote control
The distance between the transmitter of the remote control and the IR
SENSOR of the AV Surround Stereo Receiver should be less than about
5 metres. If the transmitter is pointed in a direction other than the IR
SENSOR or if there is an obstacle between them, remote control may not
be possible.
Remote-controllable range
Receiver(SR-73)
Approx. 5m
Remote control (RC-73SR)
2. Loading batteries
The life of the batteries used with the remote control is about one year
with normal use. Replace batteries earlier if you notice that they are
getting weak.
@ Remove the back cover.
@) Insert batteries (AAA type ) with correct
(+) and (-) polarity.
3) Close until it clicks.
NOTE
The batteries should be replaced within 10 minutes. If replacement
takes more than 10 minutes, the previously learned codes may be
cleared.
NOTES ON INSTALLATION
When the component is installed on or near other audio equipment hum
sometimes occurs. Position the equipment so that the hum ceases.
Always install the unit horizontally.
This model incorporates a high-performance microprocessor.. In the
event of a malfunction due to static electricity, etc., turn off the POWER
switch, and after 30 seconds turn it on again.
14
CARE AND MAINTENANCE
This section describes the care and maintenance tasks that must be
performed to optimize the operation of your Marantz equipment.
CLEANING OF EQUIPMENT EXTERNAL SURFACES
With proper care and cleaning, the exterior finish of your SR-73 will last
indefinitely with proper care and cleaning. Never use scouring pads, steel
wool, scouring powders or harsh chemical agents (e.g., lye solution),
alcohol, thinners, benzine, insecticide or other volatile substances as
these will mar the finish of the equipment. Likewise, never use cloths
containing chemical substances. If the equipment gets dirty, wipe the
external surfaces with a soft, lint-free cloth.
If the equipment becomes heavily soiled:
- dilute some washing up liquid in water, ina ratio of one part detergent
to six parts water;
— dip soft, lint free cloth in the solution and wring the cloth out until it
is damp;
- wipe the equipment with the damp cloth;
— dry the equipment by wiping it with a dry cloth.
REPAIRS
Only the most competent and qualified service technicians should be
allowed to service the equipment. The Marantz company and its factory-
trained warranty station personnel have the knowledge and special
facilities needed for the repair and calibration of this precision equipment.
After the warranty period has expired, repairs will be performed for a
charge if the equipment can be restored to normal operation.
Inthe event of difficulty, consult your dealer or write directly to the nearest
location to you that is listed on the Marantz Authorized Service Station list.
Please quote the model and serial number of the equipment and give full
description of what you think is abnormal about the equipment’s behav-
jour.
TROUBLESHOOTING
GENERAL MALFUNCTION
If the equipment malfunctions, this may be because an electrostatic
discharge or AC line interference has corrupted the information in the
equipment memory circuits. Therefore:
— disconnect the plug from the AC line supply;
- after waiting at least three minutes, reconnect the plug to the AC line
supply,
- attempt to operate the equipment again.
Memory backup
If a power outage occurs or the power cord is accidentally
unplugged, the SR-73 is equipped with a back-up function to
prevent memory data such as the preset memory from being
erased.
The memory functions are backed up for up to about one week.

FRANCAIS
TABLE DES MATIERES
page
AVANT-PROPOSG. o.oo ..ececcceeceseeceesseesceeessesensensnensenscneeseassaeseassssgsseseusnseussaeeseusesgenteatsavsetenseesseeceseasesaens 16
AVERTISSEMENT ..........ccccccsssscessscsssescossseecesesesensserensesesesaeseensneessaeesensaeeseseesensurecssatsenseneseseesaseeseas 16
REGLAGE DE L’ALIMENTATION ................:::ccsscssssesssecssessseesesessesessenseessnessneeeseeeestensseeesersesesessars 16
SECTEUR DE L’APPAREIL ...............c:sccsssocssssrsesccessnseeesseeesnseresoneessacesassneessseeeasecsevenesesscceersensranes 16
COPYRIGHT. ........:ccccssccccssceesessenennsnsensssonsanseenseaeaeaeaneeseaesessagecasacerssstsessncessssesensaaeesssecessssuscassessacensoas 16
INTRODUCTION ......ccccccssseecsssscenseceessssesensecesessesensneessssenensneesenssaseaaeseseeesescesesecessaseeseasaeenssenseesseesssenerss 16
INSTALLATION ........cccccsssccssssccccssceesssenenssseesssoesnsnsensssesensaaensnsceensupeneneseseseesnsnaesessetensunerensnsensensensesenreas 16
PRECAUTIONS ..........:cccssecesscsenssneerscsensnnensensssenensnsensseaseesanesesaeeesssesuseneesssessasanerssarsensaeaeasoueessussssseeseseas 16
PRECAUTIONS GENERALES ..........c:cccsscccssseecesersensseesesasenssseeesseeseseenesseeeesseeetsecensocessssnseanenenseseaes 16
CARACTERISTIQUES DU SR-73 .........c:ccccscssssssersessnccnsseeessaseesacessseressseeenssceesssesensatsensenenssaecusseeeessanans 16
UTILISATION DES MODES D’ENVIRONNEMENT ...............c.::ccccssssessssecesssesssseessterssenessusecuseonenesens 17
ENVIRONNEMENT DOLBY PRO LOGIC .............:ccsscscssesccesnsecsssceessseseessneeessrsessaeensseneusuacaueanecasnecensns 17
EMPLACEMENT ET FONCTION DES ELEMENTS ET COMMANDBS ..............cccsccccssssesesseseseseneeeees 18
Raccordements au Ppamneau AMri@re .............::ccccssseseccesssscnecesssssenseeeessssneceeseuseaeeveuseuneeuseverersusuanens 18
Caractéristiques du PaMMEau AVANL ............cccsessecesscccesseccssscerssserenssnenensensessaceescoeessusnsussnsereceeessaes 19
Connexions du bus de la télécommanndle ...............ccccsccsecssecessssesesssseensansensseenensncenseseessssacacseeeees 20
Prises de sortie du préamplificateur (PRE OUT) .............:c:cccsssccsssssssssceesssersnsseeessreessneeenseceseeees 20
FONCTIONNEMENT DE BASE ..............ccsccsssssstecsseessseessesesessessasesseesaseeseeecseresseenssenecsunentessnersanseatesstes 20
Ecoute du SYMtOmisSeur. ..........csscccssessscsssecssssescesseeeessensensansesensaneanansenssaeeessceeesessesessussnsssnsensaeenaseterss 20
PREREGLAGE DES STATIONG............csscsscssssssessessesssesssssstsasessesssssasssscsuecsscsuesssceneesecsneeseessesseeanesasenses 20
Préréglage Manuel ..........::cccccsscesscsecseseeeesesesssseesesseesessneenessesenssneensensaeensanecsenedeessoreesssestasaceerssenees 20
Préréglage automatique ................ccccsscccccsesrecssscecessesecssceesessrsesssnesensesecssececessenseseceeranseasauaneesesnenes 20
Rappel d’une station préréglee .............ccecsssesssccssersssesssnensessassseesserssensasessensesensessessszersanersetevees 20
Syntonisation par balayage des préréglages ................:ccccscccccssseesserecssnteessseesceneusesssuseusaneerssnens 20
Effacement des stations préréglées .............cscsccsssscesesssseesseccsssnseessereresseesansnsenssseseasscnessanesesedeeess 21
PREGLAGES 0. scecsecssssssssseesssssecsecsucsassesessessucsassssessessseesesssesasssuesvssauessessscsecsasessessessaseneesseenecesceaseesss 21
Réglage du niveau d’environnement ...............:cccccscccscescsssnessecsssccceesecveccuseussssaneussusesnneususeneneanas 21
Environnement hall, environnement matrice et stéréo SiMUlEe.................:ccsccscsesteesteesseresees 21
LECTURE 1.00... .cccccceccsscensseeesnscsensneeesesnensensensensansenecesesescesessseesensusesssseseaasensessaeeeaeseeessueeasseresesesussunarassns 21
Lecture mormalle ...........:cccscssccssscecessensensensessansenecsesesesseenessesessunessasansensaneneaseesessanecssceressusassaererseausens 21
Ecouter une source audio différente tout en regardant une source Vidéo ................20:000 21
Enregistrement ou copie d'une SOUFCE VIGGO .............cccccccscseccsseresseeennscensesseensatensneeeessateseneesens 21
Réglage de la durée de retard MUMETique ...............2.-:scccccsessecssessseesseseasesesseseseeesesesssersnnerseeesees 21
MEMOIRE ACOUSTIQUE DES PRESELECTIONG .................:ccscsescsesecssneesssetersnseeascetenssneevesseeess 21
Réglage de I’arrét programmable ...............:ccsscscessesccsssecceesneessceeesscesensaceesesstessanenenserensaaranassenecs 22
FONCTIONNEMENT DE LA TELECOMMANDE ..............:cccscccsseesssessssesssssesseesseesseesssessseesseresseresensess 22
COMMANDEEG. .............cccccsessccssscneesensensnnensesnentanacecssueenessesesssessansenensseaeasaceessasaseasacesensususeseeessaseetasauses 22
Méthode d’apprentissage ............ccceccccsssecesssnsesssnensanensensseatacseeeessecenssesessssessasusesssseseassnsensaneesasses 24
Fonctions pouvant &tre apprise .............ccsccscsssccsssssnsesssecsessrsessssesensecsessneseassesecssaseceeseussesuaeassues 24
Rappel de la fonction de présélection..............:ccccscsscsssscccsscsessssessesererssneneasensesssneceesseusnsnecaseeens 24
NUMEROS DES TOUCHES A APPRENTISSAGE ..............cccccssscsssesssersssesssssesssesssecessecsscessreesensesnees 25
Fonctionnement de la télecommand.e ..............::ccssssccsssscceesesecssseenssersessssenensensessaneeeasseeecuseeeeesuees 26
REMARQUES D’INSTALLATION ..............c:cccsccsssessseesssecssnsaseesessensssecsaeesseessueresensesensanersanesateeaseneanengs 26
ENTRETIEN ET MAINTENANCE .............:ccccssssecssscnsesserenssnecrscsesesssceesssecensssnessasseeensaneensseesensenseneses 26
NETTOVYAGE DES SURFACES EXTERIEUREG. .............cccccscscsscessssecsssesseessctsessessseersunesansensseessesase 26
REPARATIONS) ........ccccsesscsssseccsseceessnesesensaneanensenssneneesaesepsaeecessesesssneesasersessanensassesscesceeseneusussaneranses 26
REMEDES EN CAS DE PANNE ...............:ccssscccessscceesceesesscesesscsenssneesasseeeessaeezscusussanersaseususeneesensens 26
MAUVAIS FONCTIONNEMENT GENERAL ..............0:ccssscccsseceesssessessererssaeseseseesssussesascusussasenensenes 26
15

AVANT-PROPOS
Priére de lire ce chapitre avant de brancher l’appareil sur le secteur.
AVERTISSEMENT
Ne pas exposer l’appareil a la pluie ou a I‘humidité.
Garder le coffret de l'appareil fermé.
Ne rien insérer par les trous d’aération de l'appareil.
Ne pas manipuler le cordon d’alimentation avec des mains
mouillées.
REGLAGE DE L’ALIMENTATION
SECTEUR DE L’APPAREIL
Cet appareil Marantz a été concu pour respecter les exigences de votre
région en matiére d’alimentation secteur et de sécurité.
Le modeéle Version “/02" doit étre alimenté sur secteur de 230 V
uniquement.
Le modéle Version “/05” ou “/07” doit &tre alimenté sur secteur de 240
V uniquement.
Sur le panneau arriére du modéle Version “/01” est implanté un sélecteur
de tension (& 2 ou 4 positions). Prenez soin de régler ce sélecteur en
fonction de la tension secteur, utilisée dans votre région, avant de mettre
l'appareil en service.
COPYRIGHT
L’enregistrement et la lecture de certaines informations sonores néces-
sitent une autorisation. Pour de plus amples renseignements, consultez:
- La loi de 1956 sur les Copyright.
- Laloi de 1972 sur les interprétations dramatiques et musicales.
- Les décrets et réglements ultérieurs qui s’y rapportent.
16
INTRODUCTION
Nous vous remercions d’avoir acheté cet ampli-syntoniseur stéréo d’en-
vironnement AV SR-73 Marantz pour votre chaine audio/vidéo.
Cet ampli-syntoniseur est doté de nombreuses fonctions concues pour
améliorer les performances de vos sources audio préférées.
Veuillez lire attentivement ces instructions. Nous vous recommandons
de lire ce manuel en entier avant d’essayer de connecter ou de faire
fonctionner |'appareil.
Aprés avoir pris connaissance du contenu de ce manuel, nous vous
suggérons d’effectuer toutes les connexions de la chaine avant de faire
fonctionner l'appareil.
Se référer aux schémas qui se trouvent la fin de ce manuel. Les numéros
des schémas renvoient aux numéros se trouvant dans le texte. Toutes les
références aux connexions et commandes imprimées en caractéres
GRAS sont telles qu’elles apparaissent sur l'appareil.
INSTALLATION
Ne pas oublier les points suivants lors de |'installation de |’‘ampli-syntoniseur :
© Ne pas exposer |’appareil a la pluie ni a I'humidité car elles pourraient
l'endommager.
© Tous les appareils de ce type produisent de la chaleur pendant leur
fonctionnement et celle-ci doit pouvoir se dissiper librement. Ne pas
obstruer les ouvertures d’aération et prévoir un espace suffisant pour
Vaération a l’arriére, sur les cétés et au-dessus de |‘appareil.
© Eviter que l'appareil ne soit soumis a trop de chaleur. Ne jamais le
placer directement aux rayons du soleil ou prés d’une source de
chaleur.
PRECAUTIONS
\l convient de prendre les précautions suivantes pendant le fonctionne-
ment de l'appareil.
PRECAUTIONS GENERALES
Lors de |’installation de l'appareil, vérifier :
~ que les orifices d'aération ne sont pas obstrués.
— que l’air peut circuler librement autour de l'appareil.
— que l'appareil est placé sur une surface non sujette aux vibrations.
— qu’iln’est pas exposé a des sources de chaleur excessive, au froid, a
Ihumidité et a la poussiére.
— qu'il n’est pas exposé aux rayons directs du soleil.
- qu'il n'est pas exposé aux décharges électrostatiques.
En outre, ne jamais placer d’objets lourds sur l'appareil.
Si un objet ou de l'eau pénétre a I'intérieur de l'appareil, prendre contact
avec le distributeur ou le centre de service aprés-vente le plus proche.
Toujours débrancher |’appareil en tirant sur la fiche et non pas sur le
cordon secteur. ,
Il est recommandé de débrancher |'appareil de la prise secteur lorsque
son fonctionnement est interrompu pendant une longue période de
temps ou en cas d’orage.
CARACTERISTIQUES DU SR-73
® Muni de 7 entrées audio et de 3 entrées vidéo.
© Avant 70 W x 2 (8 ohms), centre 80 W (8 ohms), environnement 40 w
x 2 (4 ohms).
® Mémoire acoustique dotée de 5 présélections permettant de mémoriser
les champs d‘environnement désirés.
® Décodeur environnement doté de fonction de commande de retard
numérique.
® Doiby Pro Logic Surround avec fonction automatique de commande
de balance d’entrée.
© Mémoire de présélections pouvant stocker 30 émetteurs au hasard
avec fonction automatique de mémoire de présélection.
© Arrét programmable pouvant atteindre 90 minutes.
© Télécommande dotée de fonction d’apprentissage, capable de com-
mander a peu prés tous les appareils audio/vidéo.
® Commande de volume entrainée par moteur avec priorité a la qualité
du son.

UTILISATION DES MODES D’ENVIRONNE-
MENT
Quatre modes d’environnement sont prévus pour reproduire le son avec
une atmosphére vivante. Sélectionner le mode convenant a la source
musicale/vidéo et aux conditions de la salle d'écoute.
1. Environnement Dolby Pro Logic
Le SR-73 est doté du nouveau décodeur Dolby Pro Logic haute perfor-
mance qui sépare les deux voies audio stéréo des pistes sonores des
films et dérive les voies gauche et droite, la voie centrale et la voie
d'environnement. Grace a cette grande précision de séparation et a la
disposition minutieuse de la musique, des dialogues et des effets de son
environnement créés par le systeme Pro Logic, vous pourrez vivre
l'expérience passionnante du cinéma a la maison. Le SR-73 permet un
réglage et un équilibrage aisé du systéme Pro Logic grace a la télécom-
mande et au générateur de tonalité d‘essai Dolby incorporé.
ENVIRONNEMENT DOLBY PRO LOGIC
Position des haut-parleurs
1. Configuration d‘un systéme total (Fig. 1: exemple de connexion)
Bien que cette configuration nécessite |’emploi de cing haut-parleurs, elle
vous permet d‘obtenir l’effet complet d’environnement Dolby Pro Logic.
D’une manieére idéale, les 3 haut-parleurs avant devraient étre identiques.
Toutefois, le mode “Normal” de Dolby Pro Logic vous permet d’utiliser
un haut-parleur central de plus petite taille, en dirigeant les signaux graves
vers les haut-parleurs droit et gauche. Dans ce cas, un haut-parleur
présentant des caractéristiques voisines de celles des haut-parleurs
gauche/droit doit étre utilisé.
S’assurer que le haut-parleur central est de type blindé. S‘iln’est pas
anti-magnétique, le magnétisme engendré par le haut-parleur peut
provoquer une irrégularité des couleurs de I’image du téléviseur.
ll est souvent difficile de placer les haut-parleurs selon la configuration
idéale représentée par le schéma. Cependant, l'une des caractéristiques
principales du systéme d’environnement Dolby Pro Logic est qu'il est
possible d’obtenir une centralisation nette de l'image sonore et un
sentiment riche d’extension, méme si les haut-parleurs ne peuvent é6tre
placés selon la configuration idéale.
Méme si vous ne pouvez placer les haut-parleurs arriére sur le sol, comme
les haut-parleurs avant, il est possible d’obtenir un bon effet d’environne-
menten les fixant au mur ou au plafond ou en les plagant sur des meubles.
* Régler le sélecteur CENTRE MODE de l'appareil sur NORMAL ou
WIDE. En mode Normal, |’élément de basse fréquence est coupé du
signal de dialogue de sorte qu’un haut-parleur central de petites
dimensions peut étre utilisé.
Le mode élargi est congu pour que les caractéristiques de fréquence lors
de l'utilisation d'un haut-parleur central de méme classe que les haut-
parleurs avant, soient telles que la sortie du dialogue soit reproduite
d'une maniére uniforme et égale.
(Exemples de connexion)
=
ea)
S/ (ees
Gauche (L) Téléviseur Droite (R)}
(S) (8)
Koa Kae
Haut-parleursarriére
(avec un haut-parleur central)
Figure1
17
2. Environnement Hall
Dans la réalité, dans une salle de concert, le son qui parvient aux
spectateurs comprend non seulement le son direct des musiciens mais
aussi une combinaison complexe de sons réfléchis et de réverbérations,
ce qui crée une tonalité riche. Sélectionner ce mode pour les sources
autres que celles 4 environnement Dolby Surround.
3. Environnement Matrice
Ce mode produit un son spacieux et naturel, quelle que soit la source
musicale.
4. Stéréo simulée
Lors de lalecture d‘une source mono, sélectionner ce mode pour produire
un effet stéréo simulé.
2. Configuration d’un systeme minimum
( Fig. 2 : exemple de connexion)
Vous pouvez facilement configurer un systéme pour profiter de l’environ-
nement Dolby Pro Logic en employant deux haut-parleurs avant et deux
haut-parleurs arriére pour |'environnement.
Peu importe que votre téléviseur soit stéréo ou mono, pourvu qu'il soit
équipé d'une prise d’entrée externe (entrée vidéo).
Si des haut-parleurs de taille différentes sont employés, utiliser les haut-
parleurs de plus grande dimension pour le canal avant.
* Régler le sélecteur CENTRE MODE ae l'appareil sur PHANTOM.
En mode Phantom, le signal des dialogues (son des voix), qui s‘entend
normalement par le haut-parleur central d’environnement Dolby Pro
Logic, est divisé entre les haut-parleurs avant de gauche et de droite.
Phantom est un mode temporaire. Pour profiter pleinement de I’environ-
nement Dolby Pro Logic, un haut-parleur central est nécessaire.
KS &
S27
Gauche (L} Teéléviseur Droite (R)
(S) (8)
Ka\ Kooi
Haut-parleurs arriére
(pas de haut-parleur central)
Figure 2

EMPLACEMENT ET FONCTION DES ELEMENTS ET COMMANDES
Raccordements au panneau arriére
Toutes les connexions au panneau arriére doivent étre effectuées tandis
que toute la chaine est mise hors tension. Pour éviter toute confusion,
connecter un cable a la fois entre les divers éléments de la chaine. C’est
la maniére la plus sdre d’éviter d’inverser des canaux ou de confondre les
entrées et les sorties des signaux.
(A) Borne d’antenne FM (75 ohms)
Pour la connexion d'une antenne FM externe avec un cable coaxial
ou pour la connexion d‘un réseau par cable.
Bornes d’antenne AM et de mise a Ia terre
Pour connecter l’antenne-cadre AM fournie. Utiliser les bornes
marquées “AM” et “GND”.
Dans les endroits ot l'antenne-cadre AM donne des résultats médio-
cres, il est recommandé de connecter |l’ampli-syntoniseur a une
antenne extérieure. Utiliser a cet effet la borne AM. Un fil de mise a
la terre peut étre raccordé a la borne GND pour réduire encore
l'interférence.
Prise d’'entrée vidéo LD
Connecter cette prise a la prise de sortie vidéo d‘un lecteur de
Laserdisc.
© Prises d’entrée/sortie vidéo du magnétoscope VCR1
Connecter la prise IN a la prise de sortie vidéo du magnétoscope
principal et connecter la prise OUT a la prise d’entrée vidéo du
magnétoscope.
©) Prises d’entrée vidéo du magnétoscope VCR2
Connecter les prises de sortie vidéo du second magnétoscope a
cette prise IN.
© Prise de sortie du moniteur TV
Connecter cette prise a la prise d’entrée vidéo du téléviseur.
Cette prise met hors tension le signal vidéo provenant de la source
sélectionnée avec le sélecteur d’entrée.
(F) Prise de sortie du préamplificateur (PRE OUT CENTER)
Prise de sortie du préamplificateur pour le canal central. Utiliser cette
prise pour le branchement sur un amplificateur principal éventuelle-
ment.
@ Bornes de sortie du haut-parleur central
(CENTER SPEAKER)
Connecter ces bornes au haut-parleur central.
(H) Bornes de sortie des haut-parleurs d’environnement
(SURROUND SPEAKER)
Connecter ces bornes aux haut-parleurs d’environnement (arriére).
Si l'on branche un seui haut-parleur d’environnement, connecter sa
borne d’entrée + sur la borne de sortie A et sa borne d’entrée - sur
la borne de sortie C.
® Prises d’entrée de la platine tourne-disque (PHONO)
Connecter ces prises aux prises de sortie d'une platine tourne-
disque munie d’une cellule a aimant mobile (MM).
Connecter le fil de mise ala terre de la platine tourne-disque ala borne
GND.
* Si un bourdonnement ou un autre bruit s’entend lorsque le fil de
mise a la terre est connecté, il convient de le débrancher.
Prises d‘entrée CD
Connecter ces prises aux prises de sortie audio d’un lecteur de
disques compacts.
® Prises d’entrée/sortie de la platine cassette (TAPE)
Connecter les prises d’entrée IN aux prises de sortie PLAY (OUT) de
la platine cassette et les prises de sortie OUT aux prises d’enregis-
trement REC (IN) de la platine cassette.
© Prises d’entrée/sortie DCC
Connecter la prise de sortie (PLAY) du magnétophone DCC ala prise
IN et la prise d’entrée (REC) a la prise OUT.
18
@) Prises d’entrée audio LD
Connecter ces prises aux prises de sortie audio d’un lecteur de
Laserdisc.
® Prises d’entrée/sortie audio du magnétoscope VCR1
Connecter les prises IN aux prises de sortie audio d’un magnétos-
cope et les prises OUT aux prises d’entrée audio du magnétoscope.
© Prises d’entrée audio du magnétoscope VCR2
Connecter les prises de sortie audio du second magnétoscope 4 ces
prises IN.
®) Prises de sortie du préampilificateur
(PRE OUT FRONT SURROUND)
Prises de sortie du préamplificateur pour le canal avant et d’environ-
nement. Utiliser ces prises pour le branchement sur un amplificateur
principal éventuellement.
Prises de la telécommande (REMOTE)
Connecter ces prises a un élément muni de prises de télécommande
REMOTE (D-BUS). (Voir page 20).
Les bornes D-BUS REMOTE CONTROL peuvent aussi étre
utilisées pour le systeme de télécommande RC-5.
@
Bornes de sortie des haut-parleurs avant (FRONT)
Connecter ces bornes aux haut-parleurs avant.
Prises CA (AC OUTLET)
Connecter 4 ces prises les cordons d’alimentation d’éléments tels
un lecteur de disques compacts ou une platine cassette. L'alimenta-
tion fournie par ces prises est verrouillée réciproquement avec la
touche POWER du SR-73. La puissance absorbée maximale des
éléments connectés ne peut dépasser la limite suivante :
50 W MAX.
T) Brancher l'appareil sur une prise secteur de 230 V CA.
Remarque sur l’impédance des haut-parleurs :
La puissance nominale spécifiée pour cet amplificateur Marantz est
déterminée a l'aide des impédances de charge test de valeur fixe.
Cependart, l’impédance réelle d'un systéme de haut-parleurs varie en
fonction de la fréquence et s’écarte de la puissance nominale. Cet
amplificateur Marantz commande tout systéme de haut-parleurs mo-
derne ayant une impédance nominale de 4 ohms ou plus. Quelques
nouveaux haut-parleurs ont des impédances inférieures 4 4 ohms. La
sortie admissible haute intensité de cet amplificateur Marantz peut offrir
la puissance supplémentaire nécessaire pour commander des haut-
parleurs a basse impédance. Toutefois, pendant de longs passages a
volume élevé, le circuit de protection peut arréter momentanément ie
fonctionnement. Si cela se produit, réduire simplement le volume en
conséquence. Le circuit de protection est spécialement concgu pour ne
pas altérer la qualité sonore lors du fonctionnement normal. ,
Lorsque l'on branche deux paires de haut-parleurs aux bornes des haut-
parleurs des Systemes 1 et 2, vérifier l’impédance nominale de chacun
des haut-parleurs. Deux paires de haut-parleurs de 8 ohms fonctionnant
enméme temps produiront une impédance combinée efficace de 4 ohms
; 2 paires de haut-parleurs de 4 ohms produisent une impédance efficace
de 2 ohms et une paire de haut-parleurs de 8 ohms ainsi qu’une paire de
haut-parleurs de 4 ohms produisent une impédance de 2 et 2/3 ohms.
Lorsque l'on utilise simultanément les haut-parleurs des Systemes 1 et
2, éviter un fonctionnement prolongé a haute puissance, car le systeme
de protection peut interrompre momentanément le fonctionnement.
Garder a l'esprit que plus limpédance réelle est faible, plus l'ampli-
syntoniseur doit produire de puissance pour répondre a la demande.

Caractéristiques du panneau avant
@ Touche d’alimentation (POWER) et témoin d’attente
(STAND BY)
Lorsque I’on appuie une fois sur la touche, l'appareil est mis sous
tension (ON) et les témoins s’allument sur l’afficheur. Si l'on appuie
a nouveau sur la touche, l’appareil est mis hors tension (OFF) et le
témoin STAND BY s’allume.
@ Touche de mise sous/hors tension (ON/OFF)
SURR. (surround)
Cette touche permet de mettre sous/hors tension la fonction d’en-
vironnement.
Lorsque la touche est en position ON, le mode d’environnement
sélectionné a l'aide de !a touche SURR. est activé. Lorsque cette
touche est en position OFF, |’appareil se trouve en mode stéréo 2
canaux.
8) Afficheur a diode électroluminescente
Indique le mode d’environnement, le mode central, etc. activé a ce
moment.
@ Fenétre du capteur infrarouge
Cette fenétre recoit les signaux infrarouges provenant de la télécom-
mande. Diriger la télécommande vers cette fenétre du capteur pour
une transmission correcte des signaux.
(5) Touche de tonalité test (T. TONE)
Cette touche ne fonctionne qu’en mode d’environnement DOLBY.
Lorsque Ion appuie sur cette touche, un signal test est produit vers
chacun des haut-parleurs connectés dans |’ordre.
Cette fonction sert a régler la balance de lintensité du son général
de votre systéme d’environnement. Cette balance peut étre réglée
par le biais de la télécommande.
Pour annuler la tonalité test, appuyer 4 nouveau sur cette touche.
©) Touche de retard (DELAY)
Appuyer sur cette touche pour voir s‘afficher pendant cing secondes
la durée de retard du son environnement. Vous pouvez modifier la
durée de retard pendant ce laps de temps en appuyant sur cette
touche.
® Afficheur fluorescent
Indique le mode de réception, les sélections ou les autres modes.
Touche ACOUSTIC
La fonction de mémoire acoustique peut mémoriser jusqu’a 5
réglages du mode environnement, du mode central, de la durée de
retard et du volume sous la forme de mémoires de présélections.
Cette touche sert a prérégler ou a rappeler la mémoire acoustique.
@ Touches numériques 1 a 9
Ces touches servent 4 composer les numéros de présélection de la
mémoire de présélection du syntoniseur ou de la mémoire acousti-
que.
Touche d’annulation (0/CL)
Cette touche peut étre utilisée comme touche de numéro “0” et
comme touche d’annulation dans divers modes.
a) Touche de balayage des préréglages (P.SCAN)
Cette touche est utilisée pour balayer automatiquement les stations
prérégiées du syntoniseur. Lorsque la touche est enfoncée, |’indica-
tion “PRESET SCAN” clignote sur |'afficheur et le syntoniseur
commence 4a balayer les stations préréglées.
2) Touche MEMO (mémoire)
Appuyer sur cette touche pour composer les numéros de lamémoire
des présélections du syntoniseur, ceux de la mémoire acoustique ou
encore ceux de la durée de l'arrét programmable.
43) Commande de volume (VOLUME)
Permet de régler le volume. Tourner le bouton dans le sens des
aiguilles d’une montre pour augmenter le volume.
Cette commande permet de régler simultanément le volume pour
les haut-parleurs avant, du centre et d’environnement. Le réglage
peut également s’effectuer depuis la télécommande.
19
Touches de sélection des haut-parleurs (SPEAKERS)
Utiliser ces touches pour sélectionner le systeme de haut-parleurs 1,
2 ou les deux.
REMARQUE :
Sélectionner le systeme 1 de haut-parleurs lorsque le mode
d’environnement est activé.
Si mode d’environnement est activé alors que les systémes 1 et
2 ont été sélectionnés, la sélection du systeme 2 de haut-
parleurs est automatiquement effacée.
45) Touche de mode environnement (SURR. MODE)
Cette touche sert a sélectionner le mode environnement (DOLBY,
MATRIX, HALL ou SIMULATED STEREO). Quand tous les témoins
de mode environnement sont éteints, l'appareil fonctionne en mode
de lecture stéréo normal.
Touche de mode central (CENTER MODE)
Cette touche ne peut étre activée qu’en mode environnement
DOLBY et est employée pour sélectionner le mode NORMAL,
PHANTOM ou WIDE, selon la présence et le type de haut-parleur
central utilisé dans je systeme d’environnement. Le temoin du mode
central sélectionné s’éteint lorsqu’un mode environnement autre
que DOLBY est sélectionné.
a Prise PHONES pour casque d’écoute stéréo
Cette prise accepte une fiche de casque stéréo standard.
Remarque :
li faut désactiver le mode environnement lorsque I’on utilise le
casque.
Touche d’arrét programmable (SLEEP)
Appuyer sur cette touche pour régler l’arrét programmable.
Touches de fonction
Ces touches permettent de sélectionner la source 4a lire ou a
enregistrer. Le temoin indique la source sélectionnée.
20) Touche d’égalisation des graves (BASS EQ)
Appuyer sur cette touche pour mettre les basses fréquences en
valeur, surtout dans le cas des pistes sonores des films. Une
deuxiéme pression sur la touche annule cet effet.
@1) Touche MODE
Lorsque la bande FM est sélectionnée, appuyer sur cette touche afin
de choisir entre le mode stéréo automatique et le mode mono. Le
témoin AUTO s’allume en mode stéréo automatique.
@2) Touche AM et FM
Appuyer sur cette touche pour sélectionner la bande du syntoniseur.
Chaque pression sur la touche AM, permet la aélection de la bande
PO puis de la bande GO.
@3) Commandes de tonalité des graves (BASS) et des
aigués (TREBLE)
Ces commandes permettent de régler la qualité du son en amplifiant
ou en atténuant les basses et hautes fréquences. La gamme de
fréquence de chaque commande est amplifiée lorsque la commande
est tournée dans le sens “+” et atténuée lorsqu’elle est tournée
dans le sens “-".
TREBLE : régle la qualité du son des hautes fréquences.
BASS : régle la qualité du son des basses fréquences.
24) Touches PRESET UP et DOWN
Lors de la réception du syntoniseur, appuyer sur ces touches pour
augmenter ou diminuer le numéro du canal de présélection.
(5) Touches TUNING UP et DOWN
Lors de la réception du syntoniseur, appuyer sur ces touches pour
augmenter ou diminuer la fréquence de réception.
@6) Commande de balance (BALANCE)
Ajuste la balance sonore entre les haut-parleurs droit et gauche etle
casque. ,