Yamaha-EQ630-eq-sm 维修电路原理图.pdf
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1、STEREOGRAPHICEQUALIZER-FONTPANEL12151HAI&T7iVOCAJ.IBiTHEATEAi-;:JO60?C24U.lac.?J.8.i_EOLEvElIc131.IIIIIIIIIIft;,.YAMAHANATURALSOUNOGRAPHICEOUALIZER.EO6301010claveBandSDerChannelPEEDODDUu7EJS/EiCe5vE61BIuEDISERVICE MANUALYAMAHARemoteControlTransmitterIMPORTTonCEThis manual has been provided for theus
2、eof authorized Yamaha Retailers andeiseicepersonnel. It has been assumed that basicseiceprocedures inherant to theindustr,andmore specifically Yamaha Products, are already known and understood bthe users, and ha e thereforenotbeen restated.WARNING:Failure to follow appropriate service and safety pro
3、cedures when servicing this product may resultinpersonal injury, destruction of expensive componentsand failureofthe product to performasspecified. For these reasons,weadviseallYamaha product owners thatallservice required shouldbeperformedbyanauthorized Yamaha Retailer or the appointed service repr
4、esentative.IMPORTANT:The presentation or saleofthis manual to any individual or firm doesnotconstitute authorization, certification, recognitionofany applicable technical.capabilities, or establish a principle-agent relationshipofany form.The data providedisbelieved tobeaccurate and applicable to th
5、e unit(s) indicated on the cover. The research, engineering, and service departmentsofYamaha are continuallystriving to improve Yamaha products. Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to retrofit. Should anydiscrepancy appear to
6、 exist, please contact the distributors Service Division.WARNING:Static discharges can destroy expensive components. Discharge any static electricityyour body may have accumulatedbygrounding yourself to the groundbussinthe unit (heavy gauge black wires connect to this buss).IMPORTANT:Turn the unit O
7、FF during disassembly and parts replacement. Recheckallwork before you apply power to the unit.CONTENTSTOSERVICEPERSONNEL.ISPECiFiCATIONS.IDIMENSiONS.IINTERNALVlEW.2REARPANELS.2LTHIUMBATTERy.3DISASSEMBLYPROCEDURES.3ICBLOCK.4-5DISPLAYPINCONNECTIONS6WIRING.7DISCRIPTIPNOFOPERATIONS7BLOCK0IAGRAM.8,qPRIN
8、TEDCIRCUITBOARD10-13SCHEMATICDIAGRAM.14.15PARTSLIST16-201002631YAMAHAYAMAHACORPORATIONHAMAMATSU,JAPAN3.7k-142PrintedinJapan89.5RadioFans.CN 收音机爱 好者资料库INSULATINGTABLE.105 dB/1V.7V.lV.Lessthan0.005%EO-630TOSERVICEPERSONNEL1.CriticalComponentsInformation.*Componentshavingspecialcharacteristicsaremarked
9、illandmustbereplacedwithpartshavingspecifioationsequaltothoseoriginallyinstalled.2.LeakageCUrrentMeasurement(For120VModelOnly).Whenservice has beencompleted,itisimperativethatyouverifythatallexposedconductivesurfaces areproperlyinsulatedfromsupplycircuits.Meterimpedanceshouldbeequivalentto1500ohmshu
10、ntedby0.15JJF.Leakagecurrentmustnotexceed0.5mA.Be suretotestforleakagewiththeACpluginbothpolarities.SPECIFICATIONSMax.OutputVoltage(1kHz, 0.1% T.H.D)RatedOutputVoltageMax.InpulVoltage(1kHz)7VRatedInputVoltage.1VInputImpedance.47k-ohmsFrequency Response.10Hz -50kHz.-1dBCenter Frequencies.30Hz.50Hz.12
11、0Hz.240Hz.480Hz.1kHz.2kHz.4kHz.8kHz.15kHz.Equalizer Control Range12dBSignalloNoiseRatio (IHF A Network)At1Voutput.Total Harmonic Distortion(20 Hz -20kHz,1VoUlput)EQUIPMENTACLEAKAGETESTERUNDERTESTOREQUIVALENTLr=1I:r=4IOUTLETPower RequirementsGeneralmodel.110/120/220/240V. SO/50HzEurope model.220V.50H
12、zAustralia and U.K. models240V.50HzU.S.A. and Canada models120V.50HzPowerConsumption.lOWDimensions (W x H x D)435 x122x271mm(171/8x4-13/15x10-11/15)Weight .3.5kg(7Ibs.11oz.)AccessoriesPinplugcords(2)Remote control transmitter (1)Dry batterysizeAA (R05) type (2)Powercord(1)SpecificationsSUbjecttochan
13、ge without noticeDIMENSIONS(U)(C)(A)U.S.A. model(B)Canadian model(G)Australian model(R).Britishmodel. European model.Generalmodel1ID,-0;:N-Nojloo311/16435(17-I/S311/16I4c:=J:=JII-c:=c:Jc:r:J-IUc:r:JD-ON=.,.381-1/21l.-.t3811-1/21RadioFans.CN 收音机爱 好者资料库INTERNALVIEWREAR PANELSU,C modelsEQ-630tPowerTran
14、sformerLithium Battery(Memory)MainCircuitBoardCPanelCircuitBoard(7)PanelCircuitBoard(2)PanelCircuitBoard(l)PanelCircuitBoard(6)PanelCircuitBoard(3)oPane1Circui tBoard(5):BottomSide4DPanelCircuitBoard(4):TopSideA,BmodelsG modelR modelYAMAHAgo120 VOLTS10 WATTS60HZYAMAHACORPORAIYAMAHAL30.110120220240VO
15、LTS10WATTS50/60HzvYAMAHACORPORATIONMADEINJAPANMAINSMAINSMAINSMAINS2EO-630LITHIUMBATTERYimproperhandling.ObservethefollowingprecautionsNever reversethebatterypolaritieswheninstalling.Donotshortthebatteries.Donotattempttorecharge thesebatteries.Donotdisassemblethebatteries.Neverheatbatteriesorthrowthe
16、mintofire.L1TIUMBATTERI.Barendastbytasav servicepersonal.Explosionsfaravidfelaktighantering.SwedishWARNING!Lithiumbatteries.Explosiondanger.Changeofbatteriesmustonlybedonebyqualifiedperson-nelandasdescribedintheservicemanual.EnglishThisproductusesalithiumbatteryformemoryback-up.WARNING:Lithiumbatter
17、iesare dangeruus becausetheycan beexplodedbywhenhandlingorreplacinglithiumbatteries.Leavelithiumbatteryreplacementtoqualifiedservicepersonnel.Alwaysreplacewithbatteriesofthesametype.WheninstallingonthePCboard,solderusingtheconnectionterminalsprovidedonthebatterycells. Neversolderdirectlytothecells.P
18、erformthesolderingasquicklyaspossible.DanishFinnishADVARSEL!Lithiumbatterier.Eksplosionsfare.Udskiftningmkunforetagesafensagkyndigog sombeskrevet i servicemanualen.VAROITUS!Lithiumparisto.Riijiihdysvaara.Paristonsaavaihtaa ainoastaan alanammattimies.DISASSEMBLYPROCEDURES(Removepartsindisassemblyorde
19、rasnumbered)1.RemovalofTopCovera.Remove2 screwsCDinFig. Ib.Remove3 screwsGDandslidetheTopCover back.2.RemovalofFront Panela.Remove3 screwsCDinFig.Ib.Removeconnectorslocatedat3placeandpulltheFrontPanel forward.LITHIUMBATTERYREPLACEMENTNote)Duetothedangerofexplosionitisonlyallowedtouse abatteryofthesa
20、metypeandmanufacturerwhenithastobeshifted.Wirewireswhilepushing3EO-630.ICBLOCKICI:TCql62N(AnalogSwitchArray):E:E:E:E0eon0.0IenenuenenenenuenuI-IIIIIIIIIIIenii.I-0enIenenen:Eenen:=ffiZ1-I-00:tI-Zc.z=OzI0z_u.;0u.ZZFUNCTIONTABLEICI517:MN4051BD(8-channelAnalogMultiplexerDemu1tip1exer)ICII14:LA6324N(Quad
21、Ope-Amp)VINX.16VuoX.+XX6Xz15XzVINX,4XIX,X,Xo13XoVIN3+XXX3,2X3VIN2-Inhibit6InhibilA11AVEEa,0aVssa9Control InputONBljSW.I00Xo00IIX,0II0XzOIX3-+I,00,X,I0IXsII0X6IIIIX,xxx-4EQ-630IC402404(LCDDriver)LC7582BIC405INVeeINOUTInpUTRz0ININOUTGNO5471AOIIRscr-_-=:;-i-OUTPut-54SIA021co.0.oICI8:AN78N05(3-Terminal
22、Voltage Regulater)8N,ou,8iiii0-oscGNOVeeVOIJIVLCO5471AOIIS46105PII54SIA021544105P2154354254154053953853753653S534533532515253545S5657585951051151251351451S516IC406:GPIU521X(RemoteControl Receptor Unit)IC401:HD61408DS(4-BitICHIPMC)L.-4-.CommonIPinPin PinPinIFuncti onI/ONameNo.No.NameI/OFunctionULTIPL
23、EXERCSRchI 0011I64010I 0ElectrooicVRRchCSNCI 0012263DqI 0ElectrooicVRLchCSULTIPLEXERCSL&.RchI 001336208I 0ElectronicVRDATAULTIPLEXERCSLchI 001446107I 0LC7582INHiElectronicVRCLKI 0DIS56006I 0LC7582DATAULTIPLEXERDATAAI 0ROO65q05I 0LC7582CLKULTIPLEXERDATABI 0ROI75804I 0LC7582CEIRch)ULTIPLEXERDATACI 0R0
24、285703i0LC7582CEIL&.Rch)NCI 0R03q5602i0LC7582CE(Lch)TCql62CLKI 0RIO105501i0KeyOutput f ITCql62DATAI 0RIIII54DOi0KeyOutput f2TCq162STB1 0RI21253GNDiGNDNCI 0RI31352OSC2iOSCNCI 0R201451OSCIiOSCNCI 0R211550TESTi5VNCI 0R22164qRESETiRESETNCI 0R231748Rq3iGNOA/OINIRAO1847Rq2iKEYInput IFunction)GNOIRAI/VdisI
25、q46RqliKEYInputLchUPPowerOFFISecond)i0R302045RqOiKEYInputLchOMutingi0R312144R830KEYOutputf3PowerOFFIPrimary):INTOi0R32/INTO2243R820KEYOutput f4.RemoteControlInputi0R33/INTI2342R810KEYOutput f58-bitA/D0(LSB)i0R502441R800KEYOutputf68-bitA/OIi0R512540R730KEYOutputf78-bitA/D2i0R52263qR720KEYOutputf88-bi
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