Aiwa-ZL70-cs-sm维修电路原理图.pdf
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1、anuaCOMPACTDISCSTEREOCASSETTERECEIVERKalwaSERVICEZ-L70REVISIONPUBLISHINGSYSTEMCDSPEAKERSTEREOCASSEIVERTURNTABLEZL70CXZL70SX-WZL70PX-E860c ThisServiceManualis the“RevisionPublishing”andreplaces“SimpleManual”(S/MCodeNo.09-991-321 -4T1),GIf requiringinformationaboutthe CDmechanism,see ServiceManualof 6
2、ZG-1(S/MCodeN0.09-984-249-90T).GIf requiringinformationabouttheStereoTumable,seeServiceManualofPX-E860(U)(S/MCodeNo.09-993-322-OR1).RadioFans.CN 收音机爱 好者资料库TABLEOFCONTENTSSPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3ACCESSORIES/ PACKAGELIST.o.3PROTECTIONOFEYESFROMLASERBEAMDURINGSERVICING.4PRECAUTIONTOREPLACEOPTICALBLOCK.4NOTEINBEFORESTARTINGREPAIR.5,6ELECTRICALMAINPARTSLIST.7”11CHIPRESIS
4、TORPARTCODE.O., , ,., ,., ,., ., .,.,.12TRANSISTORILLUSTRATION.,.,.,.,.,., ., ., ,., ., ., .,.,.,., . 12BLOCKDIAGRAM-1(MAIN/FRONT). 13,14BLOCKDIAGRAM-2(TUNERSECTION).15,16WIRING-1(MAIN).17,18SCHEMATICDIAGRAM-1(MAiN1/2).o.o.o.o.l9.2lSCHEMATICDIAGRAM-2(FRONT).s.22-24WIRING-2(FRONT).0.0. .! .0.00 . 25,
5、26WIRING-3(PRO).! 00.0. . 27,28SCHEMATICDIAGRAM-3(PRO).o.o .29.3OWIRING-4(TUNER).,.0.31,32SCHEMATICDIAGRAM-4(TUNER).,.,.,.,.33,34SCHEMATICDIAGRAM-5(MAIN2 / 2) . 35,36WIRING-5(DECK). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .o . . . . . . . . . . . . . . . . . . . . . . . .
6、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37WIRING-6(CDKEY).0. .38SCHEMATICDIAGRAM-6(CDKEY).39WIRING-7(AC).,.0.0.40SCHEMATICDIAGRAM-7(AC).o.o. Q .c.o.o.c.o.oo.o .o.c.o.o.4lSCHEMATICDIAGRAM-8(TUNERFRONTEND)., . 42FLGRID(B
7、J683GK)ASSIGNMENT& ANODECONNECTION. 43,44ADJUSTMENT.45-47PRACTICALSERVICEFIGURE.,.48ICBLOCKDIAGRAM., ,.,.,.,., , ,., ,., .,.,.,.,.,.,.,.,.49-52IC DESCRIPTION.,.,.,.,.,.53,54MECHANICALEXPLODEDVIEW1 / 1 .55,56MECHANICALPARTSLIST1 / 1 . 57SPRINGAPPLICATIONPOSITION.58TAPEMECHANISMEXPLODEDVIEW1 / 1 .59,6
8、0TAPEMECHANISMPARTSLIST1 / 1 .61SPEAKERDISASSEMBLYINSTRUCTION.62SPEAKERPARTSLIST.63REFERENCENAMELIST. .,.,64-2-RadioFans.CN 收音机爱 好者资料库SPECIFICATIONSTuningrangeUsablesensitivity(lHF)AntennaterminalsTuningrangeUeablesensitivityAntennaAmplifiersactiormMid-highfrequencyamplifierpoweroutputTotalharmonicd
9、istortionLowfrequencyamplifierpowaroutputTotalharmonicdistortionInputsOutputaTrackformatFrequencyresponsaSignal-to-noiseratioRecordingsyetsmHaads87.5MHzto 108 MHz13.2dBf75 ohms(unbalanced)530kHz to 1710kHz(10 kHz stap)531kHz to 1602kHz(9 kHz step)350pVlmLoopantenna30 V/ + 30 W (200Hz -20kt+Z,THDless
10、than1 %,6ohms)0.15% (15 W, 1 kHz,6ohma)90 W + 90 W (50 Hz -200i-fz,THDlessthan1Ye,6 ohms)0.15Y.(45W, 135 Hz, 6 ohms)VIDEO/AUX310mV (adjustable)PHONO400mV (47 kohms)MICI,MIC2:1.4mV(20 kohms)CD DIGITALOUT(OPTICAL)SPEAKERS:acceptspeakersof6 ohmsor moreSURROUNDSPEAKERSacceptspeakersof 8-16ohmsormorePHON
11、ES(stereojack):acceptheadphonesof 32 ohmsor more4 tracks,2 chmnelsstereoCrt32 tape:50 Hz -16000HzNormaltSptX 50Hz-15000Hz50 dB (Crtl,tapepeaklevel,above400Hz)AC biasDeck1:playbackheadx 1Deck2:Recording/Playback/eraseheadx 1ACCESSORIES/ PACKAGELISTLaserSemiconductorlaser(2. =780nm)D-A converter1 bt d
12、ualSignal-to-noiseratio65 dB (1 kHz,O dB)Harmonicdistortion0.05%(1kHz,O dB)WowandflutterUnmeasurableSpeakersystemSX-WZL7&CabinattypeSpeakersImpadanceOutputsoundpressurelevelDimensions(W x H x D)WalghtPowerrequirementsPowerconsumptionDimeneloneof mainunit(WxtfxD)Weightof mainunit3 way,built-in subwoo
13、ferSubwoofe220mm (6 V4in.)conetypeFull range:120mm(43/4in.)conetypeSupertweetec20 mm(W16in.)ceramictype6 ohms89 dBIWlm290 x444x296mm(11/,x 17 /zx11 /4in,)6.6 kg (14 Ibs.16OZ.)120 VAC60HZ180W360 x394.5x387.5mm(14/,x 1551, x 15 lain.)10.5kg(23Ibs.202)GDesignandspecificationsare subjectto changewithout
14、notice.c Theword“BBE”andthe“BBEsymbolare trademarksof BBESound,Inc.UnderlicensefromBBESound,lnc.If cantunderstandforDescriptionpleasekindlyreferto”REFERENCENAMELIST”.REF.NO.PART NO.K.4NRIDESCRIPTIONNO.18z-MA3-903-O1OIB, U(ESF)M287-043-115-010ANT, FEEDER FM387-A9O-O3O-O1OANT, LOOP AM-NC C48z-MA1-702-
15、O1ORC ONIT, ZAS12-3-RadioFans.CN 收音机爱 好者资料库PROTECTIONOFEYESFROMLASERBEAMThissetemployslaser.Therefore,besuretofollowcarefullytheinstructionsbelowwhenservicing.WARNING!WHENSERVICING,DONOTAPPROACHTHELASEREXITWITHTHEEYETOOCLOSELY.INCASEITISNECESSARYTOCONFIRMLASERBEAMEMISSION.BESURETOOBSERVEFROMADISTANC
16、EOFMORETHAN30cmFROMTHESURFACEOFTHEOBJECTIVELENSONTHEOPTICALPICK-UPBLOCK.ACaution:Invisiblelaserradiationwhen.1,openandinterlocksdefeatedavoidexpo-msuretobeam.#Advarsel:UsynligIaserst?dingvedAbning,nrsikkerhedsafbrvdereerudeaffunktion.VAROITUS!LaiteenKayttaminenmuullakuintassakayttoohjeessamainit-ull
17、atavallasaattaaaltistaakayt-tajanturvallisuusluokan1ylit-tavallenakymattomalleIasersateilylle.VARNING!Omapparatenanvandspaannatsattanvadsomspecificerasidennabruksanvising,kananvandarenutsattasforosynlingIaserstrAlning,somoverskridergransenforIaserklass1.PrecautiontoreplaceOpticalblock(KSS-213F)rBody
18、orclotheselectrostaticpotentialcouldruinlaserdiodeintheopticalblock.Besuregroundbodyandworkbench,andusecaretheclothesDURINGSERVICINGCAUTIONUseofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedhereinmayresultinhazardousradi-ationexposure.AITENTIONL.utilisationdecommandes,reglages
19、ouproceduresautresqueceuxspecifiespeutentranerunedangereuseexpositionauxradiations.ADVARSEL!Usynliglaserst&ingvedAbning,nrsikkerhedsafbrydereerudeaffunktion.UndgAudszettelseforstr%ding.ThisCompactDiscplayerisclassifiedasaCLASS1LASERproduct.TheCLASS1LASERPRODUCTlabelislocatedontherearexterior.CLASS1L
20、ASERPRODUCTKLASSE1LASERPRODUKTLUOKAN1LASERLAITEKLASS1LASERAPPARATPICK-UPk.s)fP.C.B1)Aftertheconnection,removesoldershowninrightfigure.4RadioFans.CN 收音机爱 好者资料库NOTEONBEFORESTARTINGREPAIR1.Forceddischargeof electrolyticcapacitorof powersupplyblockWhenrepairis goingto beattemptedin thesetthatusesrelayci
21、rcuitin thepowersupplyblock,electricpotentialis keptchargedacrosstheelectrolyticcapacitors(C101,102)eventhoughACpowercordis removed.If repairis attemptedin thiscondition,thesecondarydefectcanoccur.In orderto preventthesecondarytrouble,performthefollowingmeasuresbeforestartingrepairwork.Discharaewoce
22、dureIII-.RemovetheACpowercord.Connecta dischargingresistorat an endof leadwirethathasclipsat bothends.Connecttheotherendof theleadwireto metalchassis.Contacttheotherendof thedischargingresistorto thepositive(+)side(+VH)of C101.(Fortwoseconds)Contactthesameendof thedischargingresistoras steptothenega
23、tive(-) side(-VH)of C102in thesameway.(Fortwoseconds)CheckthatvoltageacrossC101andC102hasdecreasedIIMAINC.B1 V or lessusinga multimeteror an oscilloscope.L1Selecta dischargingresistorreferringto thefollowingtable.Fig-1Chargingvoltage(V)Discharging(Clol,102)Ratedpower(W)Partsnumberresistor(Q)25-48100
24、387-AOO-247-09049-140220587-AOO-232-090Note:Thereferencenumbers(C101,C102)of theelectrolyticcapacitorscanchangedependingonthemodels.Besureto checkthereferencenumbersof thechargingcapacitorsonschematicdiagrambeforestartingthedischargingwork.2.CheckitemsbeforeexchangingtheMICROCOMPUTERBesureto checkth
25、efollowingitemsbeforeexchangingtheMICROCOMPUTER.ExchangetheMICROCOMPUTERafterconfirmingthattheMICROCOMPUTERis surelydefective.2-1.RegardingtheHOLDterminaloftheMICROCOMPUTERWhentheHOLDterminal(INPUT)of theMICROCOMPUTERis “H,theMICROCOMPUTERis judgedto beoperatingcorrectly.Whenthisterminalis “L”,thema
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