McIntosh C28 Manuel utilisateur

OWNER'SMANUAL

C28

SOLIDSTATE

STEREOPREAMPLIFIER

Price$1.25

MclntoshLaboratoryIncorporatedguaranteesthisinstrumenttobecapable

ofperformanceasadvertised.Wealsoguaranteethemechanicalandelec-

tricalworkmanshipandcomponentstobefreeofdefectsfora periodof90

daysfromdateofpurchase.Ifsuchdefectsoccur,MclntoshLaboratoryor

oneofitsauthorizedagencieswillrepairthedefectatnocosttothepur-

chaser.Thisguaranteedoesnotextendtocomponentsdamagedbyimproper

usenordoesitextendtotransportationtoandfromthefactoryorservice

agency.

THREEYEARFACTORYSERVICECONTRACT

Anapplicationfora FREETHREEYEARFACTORYSERVICECONTRACTis

includedwiththismanual.Thetermsofthecontractare:

ForThreeYearsfromdateofpurchase

1.Mclntoshwillprovideallparts,materialsandlaborneededtoreturn

themeasuredperformanceoftheinstrumenttotheoriginalfactory

specificationsfreeofanycharge.TheSERVICECONTRACTdoesnot

coveranyshippingcoststoandfromtheauthorizedserviceagency

orthefactory.

2.AnyMclntoshauthorizedserviceagencywillrepairallMclntoshInstru-

mentsatnormalservicerates.Toreceivethefreeserviceunderthe

termsoftheSERVICECONTRACT,theSERVICECONTRACTCER-

TIFICATEmustaccompanytheinstrumentwhentakentotheservice

agency.

3.Alwayshaveservicedonebya Mclntoshauthorizedserviceagency.

Iftheinstrumentismodifiedordamagedasa resultofunauthorized

repairtheSERVICECONTRACTwillbecancelled.

4.TheSERVICECONTRACTisissuedtoyouastheoriginalpurchaser.

Toprotectyoufrommisrepresentationthiscontractcannotbetrans-

ferredtoa secondowner.

5.TheSERVICECONTRACTisgiventothepurchaserswholiveinthe

50UnitedStatesorCanadaonly.

6.ForyourprotectionMclntoshselectsitsdealerscarefully-Therequire-

mentsareverystrict.Onlyonedealerinsevenapplicantsqualifiesfor

aMcIntoshfranchise.ToreceivetheSERVICECONTRACTyourpur-

chasemustbemadefroma Mclntoshfranchiseddealer.

7.Yourcompletelyfilledinapplicationfora SERVICECONTRACTmust

bepostmarkedwithin30daysofthedateofpurchaseoftheinstru-

ment.

8.ToreceivetheSERVICECONTRACTallinformationontheapplica-

tionmustbefilledin.TheSERVICECONTRACTwillbeissuedwhen

thecompletelyfilledinapplicationisreceivedatMclntoshLaboratory

IncorporatedinBinghamton,NewYork.Iftheapplicationisnotre-

ceivedatMclntoshLaboratory,onlytheserviceofferedunderthe90-

dayguaranteewillapply.

GUARANTEE

YourC 28stereopreamplifierwillgive

youmanyyearsofpleasantand

satisfactoryperformance.Ifyouhave

anyquestionsconcerningoperationor

maintenancepleasecontactthedealer

fromwhomyoupurchasedthis

instrumentor:—

CUSTOMERSERVICE

MclntoshLaboratoryInc.

2ChambersStreet

Binghamton,NewYork13903

Ourtelephonenumberis607-723-3512

CONTENTS

Guarantee

Installation2-3

IfYou'reInA Hurry4

HowToConnect5-8

AdjustingTheTopPanelControls...9

UsingTheFrontPanelControls10,11

UsingThePushbuttons12,13

Specifications14,15

PerformanceCharts16,17

TechnicalDescription18,19

BlockDiagram20

TAKEADVANTAGEOF3 YEARSOFFREEFACTORYSERVICE

FILLINTHEAPPLICATIONNOW!

C28

SOLIDSTATE

STEREOPREAMPLIFIER

Installation

Adequateventilationextendsthetrouble-freelifeofelectronic

instruments.Itisgenerallyfoundthateach10"centigrade(18°F)

riseintemperaturereducesthelifeofelectricalinsulationbyone

half.Adequateventilationisaninexpensiveandeffectivemeans

ofpreventinginsulationbreakdownduetounnecessarilyhighop-

eratingtemperature.Thedirectbenefitofadequateventilationis

longer,trouble-freelife.

ThesuggestedminimumspaceformountingtheC 28is15

inchesdeepx 17½widex 6 incheshigh.Itcanbemounted

eitherhorizontallyorvertically.

TopreparetheC 28forinstallationremovetheplasticpro-

tectivecovering.TurntheC 28upsidedownsothatitrestsonits

topontheshippingpallet.Removethefourplasticfeetfastened

tothebottomofthechassis.

Nextplacethemountingbrackets,thepartsbagandthemount-

ingtemplateforeasyaccessibility.

Theprofessionalmountingdesigneliminatestheneedforyou

toprovideanyshelforbrackettosupporttheC 28.Itiscompletely

supportedbyitsownmountingbrackets.

Positiontheplasticmountingtemplateovertheareaofthepanel

tobecutoutforinstallation.

Thedesignofthemountingtemplateallowsyoutopositionor

locatethecutoutfromthefrontorrearofthepaneltowhichthe

instrumentistobemounted.

Ifthecutoutistobelocatedfromtherearofthepanel,the

followingstepswillhelpyou:

Onthebackofthecabinetpanel,scribea verticalcenter-

linethroughtheexactcenteroftheareainwhichthecutout

istobemade.

Placethetemplateagainstthebackofthepanelandmatch

thetemplatecenterlinewiththecenterlineonthecabinetpanel.

Makesurethatthereisatleast¼ inchclearancebetweenthe

bottomofthedashedlineofthecutoutareaonthetemplate

andanyshelforbracebelowtheproposedcutout.

Markthetwolocatingholes("C"holesonthemountingtem-

plate).

Drillthetwolocatingholes.Becertainthedrillisperpendicular

tothepanel.

Nowpositionthetemplateonthefrontofthepanelbyalign-

ingthe"C"locatingholesonthetemplatewiththedrillholes.

Withthetemplateinplaceagainstthecabinetpanel,markthe

"A"and"B"drillholesandthefoursmallholesthatidentifythe

cornersofthecutout.Jointhecornermarkswitha pencil.The

edgeofthetemplatecanbeusedasa straightedge.

IMPORTANT:DRILLTHE6 HOLESBEFOREMAKINGTHECUT-

OUT.

Accuratelydrilleachofthethreeholesontheleftandthe

rightsideofthecutoutareawitha 3/16inchdrill.

WiththesawontheINSIDEOFTHEPENCILLINEScarefully

cutouttherectangularopening.

Securethemountingstripstotherearofthecabinetpanel

usingtwoscrewsfromthehardwarepackage.

Insertthescrewsinthecenterholesofthecabinetpanel

{"B"holesonthetemplate)andtighten.Thescrewheadshouldpull

intothewoodslightly.(Usetwo¾ inchlongscrewsforpanels

under½ inch,ortwoVAinchlongscrewsforpanels½ inchor

thicker.)

Attachthemountingbracketstothecabinetpanelusingfour

screws.

Placethetemplateoverthemountingscrews.Themounting

screwsshouldbecenteredinthe"A"and"B"holesonthetem-

plate.Thesidesofthemountingbracketsshouldmatchthevertical

dashlinesonthetemplate.Ifnecessary,loosenthescrewsand

pushthebracketsintoalignmentandretighten.

Insertthepowercordthroughtheopeningsotherailsonthe

bottomoftheequipmentslideinthetrackofthemounting

brackets.Continuetoslidetheinstrumentinuntilthefrontpanel

isagainstthecabinetpanel.

AtthebottomfrontcornersofthePANLOCinstrumentsare

thePANLOCbuttons.

DepressingthePANLOCbuttonswilllocktheinstrumentfirmly

intheinstallation.

DepressingthePANLOCbuttonsa secondtime(aswitha ball-

pointpen)willreleasetheinstrument.Youcanthenslidethein-

strumentforwardtotheinspection-adjustmentposition.

Depressingtheinspection-adjustmentpositionlatcheswillallow

theinstrumenttoslidecompletelyoutoftheinstallation.

VERTICALINSTALLATION

Inthehardwarepacketaretwohelicalsprings.Fastenthe

springstothesmallflangesattherearofthePANLOCbrackets.

Theflangehasa notchanda holetomountthespring.Thesprings

assistintheremovalofverticallymountedPANLOCequipment.

DONOTUSETHESPRINGSONHORIZONTALLYMOUNTED

EQUIPMENT.

IfYou'reInA Hurry

A-BALANCE(outerring)make

onespeakerlouderthantheother.Permits

theadjustmentforunequalsoundcaused

byroomacousticsorprogrammaterial.

B-COMPcenterknob). . threeposition

switch.FLATisthecenterposition.PRES

(theleftofcenterposition)increasesthe

mid-frequencies.LOUD(therightofcenter

position)adjustsfrequencyresponseas

volumeisreducedtocompensateforhear-

inglossesatlowvolumes.

C-INPUTSELECTOR

AUX...foranydeviceconnectedtothe

AUXinputsonback.

TUNER...forFMstereoorAM/FMtuner.

PHONO1 ...forrecordplayer.

PHONO2 ...forrecordplayer.

MIC...formicrophone.

TAPEHD...fortapedeckwithoutelec-

tronics.

D-MODESELECTOR

UsetheSTEREOorSTEREOREVERSE

positionsforallstereoprograms.Allother

positionsaredesignedtohandlemono-

phonicprograms.

E-VOLUMEON/OFF

TurnstheACtotheC 28on,adjustsloud-

nessofsoundtosuityourtaste.

F-BASS

Modifythelowfrequencyprogramma-

terialtosuityourtaste.Rightchannelis

therightknob,theleftchannelistheleft

knob.

G-TREBLE

Modifythehighfrequencyprogramma-

terialtosuityourtaste.Rightchannelis

therightknob,theleftchannelistheleft

knob.

H-PUSHBUTTONS

TAPE1;Pushin- Monitortherecorded

programonTAPErecorder1;Out-Hear

theprogrambeingrecordedonTAPEre-

corder

TAPE2:Pushin- Monitortherecorded

programonTAPErecorder2;Out-Hear

theprogrambeingrecordedonTAPEre-

corder2.

MUSTBEINOUTPOSITIONTOHEAR

ANYOTHERPROGRAMSOURCE.

I-1 2/21 ...copyfromTAPE1 toTAPE

2orfromTAPE2 toTAPE1,whentwo

taperecordersareused.

J-LF...FILTERin...reduceslowfrequency

noisesuchasturntablerumble,OUT- flat

response.

K-HF...FILTERin...reduceshighfre-

quencynoisesuchasrecordsurfacenoise,

OUT-flatresponse.

L-MAIN(mustbeusedwiththeaccessory

SCR).Turnsthemainloudspeakeronor

off.

M-REMOTE(mustbeusedwiththeacces-

sorySCR).Turnstheremoteloudspeaker

onoroff.

N-JACKS

TAPEINPUT

Foruseasanothertaperecorderinput.

Usesthefunctionsnormallyconnectedto

TAPE2.

O-TAPEOUTPUT

Foruseasanothertaperecorderoutput.

Usesthefunctionsnormallyconnectedto

TAPE2.

P-HEADPHONE...toconnecta setof

stereoheadphones.

HowToConnect

CONNECTINGA RECORDPLAYERTOPHONO1

Connectthecablefromthe"left"channeloftherecord

playerintothe"L"PHONO1 inputjack.

Connectthecablefromthe"right"channeloftherecord

playerintothe"R"PHONO1 jack.

PHONO2 isprovidedfortheuseofa secondrecordplayer.

Connectthecablefromthe"left"channeloftherecord

playerintothe"L"PHONO2 inputjack.

Connectthecablefromthe"right"channeloftherecord

playerintothe"R"PHONO2 inputjack.

CONNECTINGA MICROPHONE

Connectthecablefromthe"left"microphonetothe"L"MIC

inputjack.Connectthecablefromthe"right"microphone

tothe"R"MICinputjack.

CONNECTINGA TAPEDECKFORPLAYBACK

Connectthecablefromthe"left"taperecorderheadonthe

tapedeck(onewithoutitsownelectronics)tothe"L"TAPE

HEADinput.Connectthecablefromthe"right"taperecorder

headtothe"R"TAPEHEADinput.

CONNECTINGA STEREOTUNER

Connectthecablefromthe"left"channeltuneroutputto

the"L"tunerinputjack.

Connectthecablefromthe"right"channeltuneroutputto

the"R"TUNERjack.

AUX

Anyhighlevelprogramsourcesuchasanothertunerora TV

setcanbeconnectedtotheinputjacksmarked"AUX."

CONNECTINGA TAPERECORDER

ToRecord:

Connecta cablefromthe"L"TAPEOUTPUTjackmarkedTAPE1

tothe"left"highlevelinputofa taperecorder.

Connecta cablefromthe"R"TAPEOUTPUTjackmarkedTAPE1

tothe"right"highlevelinputofthetaperecorder.

Connecta secondtaperecorderinthesamefashiontothe

TAPE2 outputs.

ToPlayback/Monitor:

Connectthecablefromthe"left"channeloutputofa tape

recordertothehighlevelinputs. . . "L"TAPE1.

Connectthecablefromthe"right"channeloutputofa tape

recordertothehighlevelinput.."R"TAPE.

Connecta secondtaperecorderinthesamefashiontothe

TAPE2 inputjacks.5

HowToConnect

CONNECTINGTHEC 28TOPOWERAMPLIFIERS

ConnecttheMAINoutputjackstotheinputofa

stereopoweramplifier.The"L"jackisconnectedtothe"left"

amplifierinputjack.The"Ft"jackisconnectedtothe"right"

amplifierinputjack.

TheoutputimpedanceattheMAINoutputis100ohms.Longer

cablesthanaresuppliedcanbeconnectedbetween

theC 28andtheamplifiers.Thelengthofthecableis

limitedbythecapacityofthecable.Thetotalcapacity

mustnotexceed1000pF.Forinstance:cableswitha

capacityof25pFperfootmaybe40feetlong.13.5pFper

footcablemaybe75feetlong.Theinputimpedanceof

theamplifiersshouldbe47,000ohmsorgreater.

CTROutput:

UsetheCTRoutputtofeedleftplusrightsignaltoa separate

poweramplifierformonophonicbackgroundmusicorfor

acenterchannelspeaker.

SPEAKERCONTROLRELAY

Tocontrolmainandremoteloudspeakersfromthefrontpanel

oftheC 28anaccessoryMclntoshSCRcontrolisneeded.

PlugthecablefromtheSCRcontrolintotheSPEAKERCONTROL

RELAYreceptacle.Thespeakersarethenconnectedtothe

SCRcontrol.(SeeDiagramp.8)

ACOUTLETS

Thereare4 blackACoutlets,2 greenACoutlets,andone

redACoutlet.ThepowertotheblackACoutletsiscontrolled

bythefrontpanelswitch.Usetheseoutletsfora tuner,

taperecorder,etc.Thegreenoutletsarecontrolledbythetop

panelswitchmarked"PowerAmplifier."Theredreceptacle

isonatalltimes.Usetheredoutletfora turntableor

recordchanger.Theturntableisprotectedbythisarrangement.

Itisnecessarytoturnofftheturntableorrecordchanger

withitsownACswitch.

GROUNDCONNECTION

Asinglegroundpostisprovided.Groundsforturntables,

recordchangers,tapedecks, etc.shouldbeconnectedtothis

post.Theleftandrightprogramcablesandthegroundwire

fromthatsourceshouldbewoundortwistedtogether.Toavoid

hum,makesurethegroundwiredoesnotmakeanyconnections

totheshieldsoftheleftandrightprogramcablesbetween

theprogramsourceandtheC 28.7

HowToConnect

Autres manuels pour C28

Table des matières

Autres manuels McIntosh Amplificateur

McIntosh

McIntosh MX120 Manuel utilisateur

McIntosh

McIntosh MC206 Manuel utilisateur

McIntosh

McIntosh C11 - SERVICE Manuel utilisateur

McIntosh

McIntosh C2300 Manuel utilisateur

McIntosh

McIntosh C70 Manuel d'instructions

McIntosh

McIntosh C52 Manuel utilisateur

McIntosh

McIntosh MC275 50th Anniversary Manuel utilisateur

McIntosh

McIntosh C100 Manuel utilisateur

McIntosh

McIntosh MHA50 Manuel utilisateur

McIntosh

McIntosh C8AC Manuel utilisateur

McIntosh

McIntosh A-116 Manuel utilisateur

McIntosh

McIntosh C29 - Manuel utilisateur

McIntosh

McIntosh C29 - Manuel utilisateur

McIntosh

McIntosh C34V Manuel utilisateur

McIntosh

McIntosh MC601 Manuel d'instructions

McIntosh

McIntosh MC-60 Manuel utilisateur

McIntosh

McIntosh MA 5100 Manuel utilisateur

McIntosh

McIntosh CR12 Manuel utilisateur

McIntosh

McIntosh MX136 Manuel utilisateur

McIntosh

McIntosh MC2102 Manuel utilisateur

McIntosh

McIntosh MCC82 Manuel utilisateur

McIntosh

McIntosh MA6600 Manuel d'instructions

McIntosh

McIntosh MCC222 Manuel utilisateur

McIntosh

McIntosh C-8S Manuel utilisateur

Manuels Amplificateur populaires d'autres marques

ASTRO

ASTRO HVO V40 P Manuel utilisateur

Marantz

Marantz SUPERSCOPE BLA-545 Instructions de montage

NAD

NAD CI980 Manuel utilisateur

Technics

Technics SE-CH770 Manuel utilisateur

Harman Kardon

Harman Kardon HK6300 Manuel utilisateur

NAD

NAD T975 Manuel utilisateur

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N Manuel utilisateur

Viatron

Viatron Autrix Manuel utilisateur

GME

GME GA9800 Manuel utilisateur

Atlas

Atlas CP700 Manuel utilisateur

Roland

Roland KC-1000 Manuel utilisateur

Pyle

Pyle PFMRA350BW Manuel utilisateur

Advantage

Advantage S-250 Manuel utilisateur

IRT Electronics

IRT Electronics DVA-3007 Manuel utilisateur

Dimavery

Dimavery BA-100 Series Manuel utilisateur

Sony

Sony XM-S400D Manuel utilisateur

Schertler

Schertler ROY X Manuel utilisateur

Phonic

Phonic XP 3000 Manuel utilisateur