Studiomaster-16x4x2-mixer-sm 维修电路原理图.pdf

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1、RadioFans.CN 收音机爱 好者资料库16x4x2MIXERAPPLICATIONSLIVE SOUNDREINFORCEMENTThe extreme vera!My01the 1x4x2 provides a level of control moe than equallodemandinglives,IualionsMULTITRACKInte1acesperlectlywith4racktransportslorsupefbmuj-trackmas1ersaswell aspalchingfac;liiesfor 2t,ackmix downTHEATRICALPRODUCT

2、IONThf fxib,Jtty,md expandlbl,tyof the 1$.4.2allow the theat,;,;:al user mo.a:haneroughoptionslordramaticandmusicalpresentaHonsVIDEOPOSTPRODUCTIONA superb unit for profesioalaudio results in both the commercIalfilm and,deomediurnsPERMANENTINST ALlATION/CHURCHESINSTITUTIONSMult;leinpU!$ a,d outputs a

3、llow for selective signal distnbut.onfOtmats notusualtyk1,mdinordinarymixersToc_oca:nfmal.ocepaare.;_ogl.ny.1hor;edde.lerorepresen1a;vewoi1_F,f.,.,.,tt,.S!udo,.ter,eofpo master1h4x2mixer has been carefullydesignedtOf .ecordrlgas well as live pertormanC(!mIxingFul1hef, this mIXer can be used lor slmu

4、naneousrecordingot liH. performancesin addI00I110 ,emixingof mulhtrack master recordngs.ThismixerhastheflexbiltytomootvirtuaIlyanyuniqueaudiositualioounderthemoststrenuousconditionsand providesuperb aud,ble results. The 16x4x2perfectlymatchesany4tracl(eoordIQtransportmaking this board perfectin both

5、 home and stud;o recordingenvironmentsRead this manual carefully and familiarizeyooellwlthhefeaturesandfurdionsbeforeoperatongWesugges1atwayskeepingth,smanualwiththemxer.We at Studiomaslerare proudof our mixersand we believeyou will teequallyproudw;th you, purchaseCONTENTSINPUTCHANNELS116SUSGROUPCON

6、TROlS1-4AUXILIARYCONTROLSSECTIONMASTERQUTPUTANDJ:jXILLARY8E-TURNSSACKPANElFEATURES16x4x2 MIXER APPLICATIONS16.4x2LIVE SOUND REINFORCEMENT16.4.2RECORDINGAND MIXING16.4.2THEATRICALPRODUCTION16x4.2VIDEO POST PRODUCTIONPERMANENTINST ALLA TIONSSCHEMATICTECHNICALSPECIFICATIQN1-._1c)BASS FREQUENCYBASSCUT B

7、OOSTAUX1(POST)AUX 2 PREPOSTSWITCHAUX3(PRE)SOLO ASSIGN SWITCHL&A ASS.GSWITCHSUBGROUPASSIGNSWITCHESCHANNELFADEROVERLOADINDICATOREachinputchannelconsistsof the lollowingcon-AUX2trolsandleature.:Thiscontrol,likeAux1, isnormattypost ta(/er.Au2MIC LINESWITCHhowever,is poidedwith a pre-fade,sele:tor switch

8、 forThis swilch allows lor any channelfo be used with eifherbussingotpre-tadersigr1als fa fhe Aux 2 masler secllona microphoneleelOlpul (balancedlow impedance-200AUX3ohm) 0 a line leelinput (unbalanced600 ohm.)lseeThe Au,iliary3 conlrolallows for bussingot a pre-faderpage 25 Ior details)signaltolheA

9、u,3maslerse:tionPrefade,signalsarenormallyusedlorstagemonilor,studiotoldbackorcue-PAD SWITCHThisswitchprovidesa20dBpaddirectlytolhemicinputand 10dB to iine, and can be usedto attenuafehighlevel signalsThe gain controlis continuouslyvariablefrom 1QdBfa6OdB.Thiscontroideterminesthenominalcharmelsensit

10、iitybyvaryingthepreampgain,preservingmaximumhead,oomlnd minimumr.oiswithoutaffec1inginputsignalsensittvityThe16x.h2utilizesthefamoosStudio mastersem;-Pe Ireble controlnetworkisan lctive sI1elving-typehigh pass filter lunct,oningfrom10kHz,provid,nglor16dBboostorcutThemidrangenetworkoonsistsOf Icontin

11、uouslyariable frequencycontrolwith a sweep of from 200Hz faBkHz.Thisiscombinedwithlseperategetwork oonsistsof a oontinuOlJslyar;ableshelvingfrequencycotrolwith Isweep oTfrom 25Hzto 350HzThis is combinedwilh a seperategai controlprovid,ng16dBboostorcutonallfrequerICiO!SbelowthechosencutollpoinlThlssw

12、ilchailowstEtus&r to bypassthEtequalLzallonnetwork inputTh;scontrailowstorbuSSlngolapOstTatIr$igoaltorhe Au,iiiary1 maste,section,Post fadersendsarecomn1Of1iyuseo and orIt-erbdces(postEa.)9PAN CONTROLThEt rotary postfaderpanconlroldetermonesthEtleft-lo-right balancEtotthEtsignal ooing sEtnt to the o

13、utpulbus-sesll1hechannelsigrlalissentt01hesubgroupS(I-4j,thEtoddgroupsarelEtftwhHethEtevenarrighlSOLOTheoswitchallowsthechannlsignaltob6bus:;edatapretaderlevEtilothEtMontoroutputThissignalcabe used in a preiewQcueingapplication.This signalautomaticallya;JpearsonLEDladder#4LEFT-RIGHTMASTERASSIGNMEr,;

14、rThis swilchallOws for bussirlg Ihe pOst pan slgMbd;-rectlytothEtletlaodghtmasleroutputsectio,s.bypas-sing the subgroIJPS. This sigrlal may be used tor poslproductionovedubblngonrecordiogsTdosOfforroul-ingofsinglesignalstotheprogramOIJtputs:nlive;-er-formancelpphcationsSUB GROUPASSIGNMENTThEtIQursub

15、groupswilchesallowlorbussingthechar1-ne1signlls to any combination01su!Jgroupss,mutlan-eouslySubgroupingisprovidedformu;trackrecor(j;ngor for sub mixing signals goups.suCh as drums. duringIivesoundrEtinforcEtmenlLEDQVERLOAOINOICATORThEtinsetLEDnettolhEtchanoolfaoorprOVJdesaV1SU-al indicalionolthEtch

16、anr,!ssigMIstatusThe LEDfweseratOfIOIII5;)OS1ancE.CCHANNELFADERThe100nvncna.,.,.,faoo,POdlcatans)SOLOASSIGN1kHz SLATESUBGROUPFADERc.)2T TO MONITORASSIGNTB TO AUX 3 ASSIGNTALKBACKAUX 1AuX 2AUX 3MASTERSENDSEao:hI,IbllrOl,lP,onsitllsolthefollowingleatl,lres&Yw:1ion.:TAPE MONITORSWITCH. switchesbussthai

17、ncomingmuW-tracktapain;Uslrumthe line iIlput jacks on input channelsJIffi:YectIytothe monltorootputs.This allows monito-rfng1,tftc1ry signal prior to remimg or eftects additioo Oflor-tapemooitonngMONITOR CONTROLemonitore:ontrotbussesthesubgroupoutputtothe,md right master outputs,Addltionall,the sign

18、al is:.:ssedc!ectlyto the monitoroutput jacks IocaledonIw!rearpaneLTheleft.rightbalanc;eisrontrolledbyttJesubgroup pan control (see below)AUX31-l!subgroupsignalcanbabussedtotheAux3masterviathssendoontroI.Thesignalismonauralandpostsubgroup!aderAUXILIARY1,1&3 MASTERSECTIONSEad1AuxillaryMasterse:uonisi

19、denticai.thec!illerence:.e;nglnthec!&rivationoltheincomingsignalsrne master control determinesthe level 01signal avaiattherorresporidingoutputiack.Thesoloswitct1saachauxiliarybuss to be Seflt to the solo circuit.-ne:er#4andthemonitoroulputsSOLOINOICATORsoIoLEDwilllightwhenanysignalispresen1intheU;lC

20、lfcuit,This;n(licatesthesignal is visuallypresentrr-.etef4an(laudlblyavailableallhemoniloroulpUlZTMONITORallows bussing ot the incomir)Q 2lracl signal (Iromr.e2track retl,lrn jackslto the monitoroutputs. Thsal-Cws tor playbad monitoring01remixed tapes, tNJS re-.:edtapescan be comparedin e.therdryor

21、et5:atetorfinaloverdubbingPAN CONTROLThe pan controldeterminestl1e lefl-to-rightbalanoootthe SUbgfOUP signal bussedto the moniloroutplltandtnemasteroutputsSOLO SWITCHThe soloswitcl1sendsthe subgroopsignalto t!1emonitoroutputdirectfy,bypassingthe moniOf send and pancontrolThe subgroupfader is a 100mm

22、controlprovidedw;thdB calibrationslor aCCllrate relativesignalindicationThis ctterminesthe final signallevel availableat thesubgroupootputjack as well as to all post tadersub-groupbussesSLATE(Ient, slatIngtapesandsystemcheck-outintiesoundreinloementapplicatIonsTALKBACKVOLUMEANO ROUTiNGSWITCHThetalkb

23、ackvolumeOO1troldeterminestr.elevelolar.ymicsignalwith,nthess.Acresssviatle)(LRjputontherear panel (see rear paael teatures).Tharo.obr)Qswitchisamomentarypushbuttonopeningtneta!ackcircuitacresstotheAux3bussoolpUl.Thosallowst:OfTrmunicationsto the stage monitoringsys1em dIn1g soundleintorcementortotn

24、etoldbacksrecordingThetalkbadcirruil.V18Aw:3.mayallCOJsSedtotneleft&ng/1IprogramootpUlSc)MrDRANGEAUX1 OR2RETURNSOLOASSIGN(MASTEROUTPUT)URASSIGN(AUX)SUBGROUPASSIGNS(AUX)The left. & rightprogrammastersK1ions!Ireldenticalinleaturesandfuncti015.EQUALIZATIONThe outputequllizationon the programmasterscon-

25、sistsolthafollcwingnetwor1.s:Treble-shelvirogtypew.th16dBbooslorcu1al20kHzMiddle-reciprocalcurve(peakdip)networkwrth16dBboostorCUlat1.5kHzBass-shelvingtypewth16dBboostorcutat20,MASTERFADERThe programmaster faders are dB cahbfatedlor accu-rate relalrvesignallevelindicatlOJls.The100mmunrtscontrolthefi

26、nalsignalbussMtotheprogramlett&rightXLRconnectoroAUXILIARY1 & 2 RETURNSThese two networlsare identicalin bolhleaturesandfunctions.Auxiliaryreturn networksdo rIOtneoossarilyrequire their inputs to be derivedfrom the correspOndIng auxiliarysendsandthuscanbe drivenwithanyunbalancMline level signalAUXIL

27、IARYLEVELCONTROLThis determinesthe amounlolreturningsignalavalJ-able for oossingto lhe subgroupsandorpogrs.mout-putsPANThisdeterminestheleIHo-rightbalanceolthencomingsignals/OuledlothevariousbussesRETURNASSIGNMENTSTheseswitchesdete,minethe roulingof the auxiliarysignals(pOst pan&level).The signalmay

28、 be buseddirectlyto the lett&righlprogram.subg,eups1and2and3and4oraloltheaboveAC SWITCHAND Pfi.OTLlGHTThe AC swilch energizesthe entire console.An -AC on-condilionis indicatedby the red LEDlocaledtOlheliOttolthisswitchCHANNELINPUTS1-HiEach oflhesixteenchanr1els have the followinginpulconnectionsand

29、accesspoirlsMICROPHONEINPUTMIC level jow impedance)sigrals are intoducedto thecharrelthroughthe XLRconnecto.Thisroutesthesfgnal to the balanceddiscretep,eamplifie!sectionLINE INPUTlinelevelsignal(unbalanced)canbeinsertedviathev.phone jack locatedbeloweach mix XLRCHANNELPATCHINGACCESSallowsirdividual

30、channelsignals10fo,example.toanextemalsignalprocessir.g:levicesuchas an ejackscanbeeasilymodifiedfor post fade,operationfor largermultilracksit.latiols. (See Pgnal is returned10the programoutpulsvia.ft1eauxiliary1and2retu,nnetworks2 TRACKLINE IN (RETURN)These1/4phorejacksprOVldereturnaccessfor-10dBs

31、igrals from 2 track tape machioesforplaybackofmasteredfapes,The signalsa.re routed fo the Mooilorout-pulswhenthe2T,ack10-MDf1itorswilchisdepessedLEFT AND RIGHTMAIN OUTS_ I _ 4AC INPUTAUXILIARYSENDSSUBGROUPLINEOUTPUTS1-4IiiIIMONITOROUTPUTSThetwo1i4-stereophonejacksarepredbylhemonilormaslercontrolTALK

32、BACKThisXLRacceptsa standardlowimpedancemK:ro-phoneloruseasac.eingCl!intercomconnectionlotheAux30ulputbussAUXILIARYRETURNSThe two auxiliary jacks are designed:oaccepl line ,velsignais for bussing 10the programsor 10Ine SUbgroups(re!erlott1eseCliononFrontPaneIConlrols-AuxiliaryAet,-,ms). The signalsm

33、ay be returnedfrom the auxil-iaf) serds, subgroupsends or from inclependente!ernalsources2 TRCKLIN!: OutThe two Irack tine oui jchprovidea-1OdBsignal forfecording01rem,xed maslar tapes. Thesignalspresentare idenl,calto the main left and right programoutpUIS,CHANNELINPUTS1-16_CHANNELPATCHINGJACKS(DIR

34、ECTIN OUT LOOPS)e.ceptinoutpullevelPROGRAMOutPUTS- LEFT AND RIGHTThesignllspresefaI1heprogamXLRcormectorsaebalarn:ed with InomiMllevelof + 4dBm. These are de-nvedromthe mastersectionsdescribedin the FrontPanelFeaturessectionor this ma1ul1. Thesesignalsmay be used for lives.ound re,n!occementor rortw

35、oIraCkrecordingwhereprofessional(+4)vlsare/e-quiredPHANTOMPOWERSWITCH48v of phantompower is aVeCtorsI:tyactuafingthe phanfompowersNitchAC POWERCONNECTION,VOLTAGESELECTIONANDFUSEHOlOEAThe 16x4.2isdesignedlooperaleonaj01voIlagesat either 50 or 60Hz;l00V,120V, 220V and 240V. Thovollesqut.reinsertar!dlu

36、ming!heil1seJI!i:theor,;rvoi-tage is afigrwsdwllhthe arrOll Olr.eg,1a;Jeroflheholder.The AC is introducd.-; Slar,dn;lEG co-nector.TheACfu,aT2AtypC,i$lQcal,wellplam1ed layoutofchanr,eldedich are to be routedlothesamesubgroupsmaybeaced,nadjacenlchannels.however,any criticalinputsto be routedto thatsub

37、groupmaybeisolatednear the subs and maslerstofacilitateeasierchar1gesForstartngpufposcs,mclevelsig. alsshouldhaveaga,n setb. gof 30 with no p.ad and e.q. Ila1. Line level inputsshouldbeini1iallysetat20withnopadande.qllatEQ.SE!Iings may De iMlallypertormedby rou!,ngtheinpulto1haheadphonesvia!l1esolob

38、uss.Properm,xonglech . iques shouldlesultin the channeltader talhngbetwee .5a . d20o.thescale,al1houghnolallsignalsaresoobhgi. gWhe .fonahz,ngthegainandEQ.se!tingS,keepinmirtdthe Overload i. dicalorfiresat4dS priortocl,pping,thusit is oftennormaltor theLED10 lirei. a sporadic,mome . tarymanner,True

39、overloadand dis!ortionis indicatedbyastrong,contlnllOusoncondolion.AUXILIARYSUSSINGDuring live performancesit is oflen nocessaryto assignvariousinput signalsto mul1iple accesspoints 01busses.ForthSreaso . , the 16.4x2hasbeendesignedwl!h.2 pnmarybusses(ProgramLett and Right), 4 subgroupbusses(1,.2,3a

40、rtd4)and3auxiliarybusses(Au1,.2and3) as well as channelpatch points. This allowstheoperatorachok:eof10distlibutonOIJtesfOla. yincomigsignal.lnmayapplicationsilmayberequifedtoaddexler. aleectsorco. trolS,suchaSOCho,delayorlimiog,10speciticinpuls. Addiionallyitis oflen a requiremenlfor the on stage la

41、lentto have a refelencesgnalormonrtor.lfthemonrtorSlgnalrequirementsareslmple,as,nglesernlmaybeadequatea. dca .begeneraedby routingthe necessarysignalsvia the au3buss.lfa more complexmonitor mix is required. the aux2 send may be assig . ed a pre-faderstatus and a second,independilntmonitorsig. algen

42、eraledPerhapso. e of the moSI crilicalfactorsof high qualityhvepertorma. ce rei. forcemenlis the addlton and mIXi. g ofe.ternalsignalprocessongdevicessuch as reverbs.delays,compressors.etc.TheSludiomaster16x4x2isdesig. edI0;. terfacewilhvirtuallyalfsuchdevices capableof usingline level;nputsand supp

43、lyingtine level outputs(Note:Someelfectsdevicesare des;gnedloruse. ithhighimpedanceinpuls;gijals,suchas guitarsand ge . e,aleahigh impedanceoutpulsigna.!Suchunitsaleoot directlycompatiblewiththe16.4.2unlessimpedaocematchingdevioosareusedon the input and outputsignals.)For etfectswhich are10beusedonm

44、u!pleinputsignals,e,greverbonvoorbytakingthelineootofthesubgrou.pstOdrivetheextemaldeviceand retumiogthe signalsto Ihe programmas!ers.ThislattermethodisespecialfyeflectlVeon$lgnalgroupsre-quiringcompreSsonandorlevellimitingSomeincomingsignalsmayrequirespecialeffectswhich are nol requiredor des,rable

45、on any o!her sgnalXampswobellangingon a keyboard,ahar.mcnizeron a guitar or limiting on a snare or bassdrUfTIThese types o! effects can bellSedb;patch,ngIhe pro-1,/:r:r:i:aok.ti:ac:nectOf as the outpulsend,thering connectoras theinput retumand tMsleeveconnectoras the commonshielclfoboth linesMatingc

46、ord assembliasmaybepurchasedorconstructedbytheuSr.(Notell!heneedarises to route an input signal IromthechannalwithoJtintarruptlngthenormalsigMltlowlt1roughlhemixe,the mating piu wired as above must have a jumper wireadded betweenthe tip and ring oonnectors.When usingthis!ypof passiveslgMIspirt arran

47、gement,care mustbe takento avoide.cessiveoontrolchangesIn eitherthe channeltader 01post tader controlsor thoS on thedevice led by the Spilt signal. Since there is no isolationcontrolvariatoonsmade at either end of the signal pathmayaflec1theothe.-side.)liveSound reinforcementmi1ingoltenlSaneasiertas

48、ks,milartypesoflnputsaregroutogetherarxlOOr)-trolled as a singlesgnalExamplesof Ihis type ot usewouldbemicrophonesusedondrumklts,harmonyandiorbackgroundvocalmlcsandmul1plekeyboardlnputs,/As variOuS iI1putsaretoutedto a subgroup,iI1drvioualchannellevelscan be set so as to providea properblendandbalan

49、ce. rthinlhesubgroupmi.,t,torexample,theleve!otthedrumsneedstoberaisedorloweledrelative to the overall pregramlevel. Ihe subgroop!adefcan be e-postlonedwithouldes!royingthe balanceTh,s stili alLows lorindrvidualchannetswithin the grOJpto be taisedor lowere! as necessaryas that channelsignalstrengthw

50、ill changein the sub as well as themaS1er. Anotheradvantageot sub-masteflngOt group-ingistheabilltytoaudlblyplacethesubgroupsignalrel-ativetolhemaslerleIHo-rightbaance.Thisisaccomplishedviathesubglooppancontrol,whicha1lowstheenglneertosweepthesubgroupsendloreflect.Byweyof an example,a par1icular dru