Sony-TCK555ES-tape-sm 电路图 维修手册.pdf

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1、T #I?s- R k777 E SPECIFICATIONS TCM-110C3 -Continuedon page 2 - 0.04%WRMS(NAB) 0.12%(DIN) SERVICEMANUAL TapeTransport MechanismType Wowandflutter ChOFFB-TYPE ONC-TYPE ON TYPE IV (Sony METALLIC)60dB67dB73dB TYPE III (Sony FeCr)62dB69dB75dB TYPEII(Sony UCX)59dB66dB72dB TYPE I (Sony BHF)56dB63dB69dB Re

2、cordingsystem4-track2-channelstereo Fast-forwardandrewindtime Approx.90 sec.(withC-60cassette) Biasfrequency105kHz Signal-to-noiseratio(NAB,atpeaklevel) Totalharmonicdistortion 0.8%(withSonyMETALLICandFeCr cassettes) FrequencyresponseDOLBYNROFF WithTYPE IVcassette(SonyMETALLIC) 20 - 19,000 Hz 25 - 1

3、8,000 Hz (3 dB) 25 - 14,000 Hz (3 dB,VUrecording) 25 - 19,000 Hz (DIN) WithTYPEIcassette(Sony FeCr) 20 - 19,000 Hz 25 - 18,000 Hz(3dB) 25 - 19,000 Hz (DIN) WithTYPEcassette(Sony UCX) 20 - 18,000 Hz 25 - 17,000 Hz(3dB) 25 - 17,000 Hz (DIN) WithTYPE Icassette(Sony BHF) 20 - 18,000 Hz 25 - 17,000 Hz (D

4、IN) MICROFILM RadioFans.CN 收音机爱 好者资料库 TC-K555ES IOdB=O.775VI Peakprogrammeters Response range-40dBto+8 dB Frequencyresponse20- 20,000Hzzl.5dB Responsetime1millisecond Decaytime(from0dBto-20dB) 750milliseconds Overshootnone r - - InputsLineinputs(phonojacks) Sensitivity77.5mV(-20dB) Inputimpedance50k

5、ohms OutputsLineoutputs(phonojacks) Outputlevel 0.435 V(-5dB)ata load impedanceof50 kohms Loadimpedanceover 10 kohms Headphoneoutput Outputlevel,variablefrom-20dBto -50dBataloadimpedanceof8ohms General PowerrequirementsAEPmodel:220V ac,50/60Hz (240Vac adjustablebyauthorized Sonypersonnel) UKmodel:24

6、0Vac,50/60Hz (220V ac adjustablebyauthorized Sonypersonnel) US, Canadianmodel:120V ac,60Hz Emodel:110,120,220or240V ac ad- justable,50/60Hz FEATURES Powerconsumption Dimensions Weight 26watts Approx. 430 x105x285mm(w/h/d) (17x4/.x11/.inches) inclUdingprojectingpartsandcontrols Approx.6.1kg(13Ibs80z)

7、 Three-headsystem Separate record andplaybackheadsallowoptimumgapsettings andimpedanceratingsfordistortion-freerecordingandgreatlyex- tendedfrequencyresponse. Forgoodtapeto-headcontactthe headsaremountedin oneblockand each head isseparatelyad- justedfor preciseazimuthalignment.The three-headsystemal

8、so enablesyoutomonitortherecordedtapewhileactuallyrecording. Newly-developed LA(LaserAmorphous)head Therecord/playbackheadismadeofaspecialamorphous magneticalloydeveloped by Sony, anditscoresaresolidlywelded by laser. This newhighly-durablehead provides awiderdynamic range and amoreextendedfrequency

9、response,especiallyin the high-frequencyrange. The head is designedtotakefulladvantage ofthepotentialofthemetaltapes. Closed-loopdual-capstantapedrivesystem Twopairsofcapstansandpinchrollersensureuniformtapeten- sionandstabletape-to-headcontact.As a result,wowandflutter andmodulationnoisearegreatlyr

10、educed. DolbyC-type NR (noisereduction)system InadditiontotheconventionalB-type Dolby NR system,this cassettedeckemploysthenewly-developedC-typeDolbyNR systemwhich reducestapenoisetwiceaseffectivelyas the B-type system. The C-typesystemalsoincorporatesananti-saturation networktoimprovethehigh-freque

11、ncydynamicrange by 4dBat 10kHz. Digitallinearcounter Thiscounterindicatestherecordingorplaybacktimeelapsed on the tape sothatthetapecan be precisely indexed.Whileconven- tionaldisplayscanonlyindicatethe elapsedrecordingtime,this displaycanindicatewithaminussignhowmuchrecordingtimere- mains. BrightFL

12、-display peakprogrammeters The peakprogrammetersfollowthetransientpeaksofthemusic andmaintainthe peakreadingsforabout4 seconds.Thisdouble indicationmakesit easytosetcriticalrecordinglevels precisely. Remotecontroloperation UsingtheoptionalRM-50orRM-80remotecontrolunit,various operations-recording,pl

13、ayback,recordmutingoperation,etc.- can beremotelycontrolled. When the RM-65synchroremotecontrolunitis usedtoconnect thiscassettedeckwithaturntableequippedwithasynchroremote controljack, theoperationofthecassettedeckand theturntable will be synchronized. Twomotors Thetwo-motordrivesystemassuresaccura

14、teandstabletape transport.Thecapstanis driven by a lineartorqueBSL (brush/ess andslotless)motortokeepwowandflutterlowandtoprovide smoothtorque. Usefulfunctions .Recordmutingfunctionallowsyoutoeasilyinsert amoderately longblankspacebetweenselections. .Autoplaypermitsonesteprewind andplaybackfromthe b

15、egin- ningofthetapeandthememoryfunctionallowsyoutoeasily locateany desiredpointon the tape. .Atimerswitchis providedtoturn thedeckon andoffanynumber oftimesat presettimesset on anoptionaltimer. -2- RadioFans.CN 收音机爱 好者资料库 SAFETYCHECK-OUT(US Model) Aftercorrectingtheoriginal serviceproblem, performth

16、efollowing safetycheckbeforereleasing thesettothecustomer: Checktheantennaterminals,metaltrim,metallized knobs,screws,andallotherexposedmetalpartsfor AC leakage.Checkleakage as described below. LEAKAGETEST TC-K555ES 3.Measuring the voltagedropacrossa resistor by meansofa YOMorbattery-operatedACvolt-

17、 meter.Thelimitindicationis0.75V,so analogmetersmusthaveanaccuratelow- voltagescale.TheSimpson250and Sanwa SH-63Trd areexamplesofa passive YOMthat is suitable.Nearly allbatteryoperateddigital multimetersthathavea2VACrange are suitable.(See Fig. A) TheAC leakage fromanyexposedmetalpartto earthgrounda

18、ndfrom all exposed metalpartstoany exposedmetalparthaving areturnto chassis,must notexceed0.5 rnA(500microampers).Leakage currentcanbemeasuredbyanyoneofthree methods. I.Acommercialleakagetester,suchasthe Simpson 229orRCA WT-540A.Followthe manufacturersinstructionstousetheseinstru- ments. 2.Abattery-

19、operatedAC milliammeter.TheData Precision 245 digitalmultimeterissuitable for thisjob. ToExposedMetal PartsonSet 1.5kH .LEarthGround AC voltmeter (0.75V) MODELIDENTIFICATION -SpecificationLabel- SONMODELNO.TC-K555ES TAPECORDER SERIALNO. MADEINJAPAN US,Canadian model:AC 120 V 60Hz26 W Fig.A.Using anA

20、Cvoltmeterto checkACleakage. SONMODELNO.TC-K555ES TAPECORDER SERIALNO. MADEINJAPAN AEP model:AC 220 V50/60Hz26 W UKmodel:AC 240 V50/60Hz26 W E model:AC 110, 120, 220, 240 V50/60Hz26 W -3- RadioFans.CN 收音机爱 好者资料库 f-K555ESI,L CautiononDOLBYIC (CX174) Replacement This set uses eight Dolby ICs(CXI74).(l

21、CIOI, 102,201,202,301,302,401,402) TheseICsareeitherCX174-1orCX-174-3. When replacing these ICs, be suretousethesame ICs astheoriginalone. SONY 174 - 1:CX1741 3:CX174-3 -4- * 1-1.BLOCKDIAGRAMS -AmpSection - -L-CH- PBEOAMP IC501 SECTION 1 OUTLINE TC-K555ES 5505-15506-2 IDOLBYNR11Kl-.I-+-+-_._:I1IDOLB

22、YNRI OFFBTYPE + ONCTYPE B+ (9.6Vl TC-KS TO5Y5TEMCONTROL BOARD CNJ301 IL1NiINI -R-CH- SAMEASL-CH 5507-1 IMPXFILTERI OFF + ON 1Jc:-SWITCHIRECEO)t-1I-+_-_+-+- 0314 5506-15505-2 IDOLBYNRIIDOLBYNR! 1Jf1OFFtOFF5504-2 :j:OTOMmR.t-_-+-IO*NTJlT BOARD(Al_,-t-+-iFF5503-2 _*TYPEill ONFe-Cr -5- .I TC-K555ESI S50

23、8-3 IMONITORI TAPE + SOURCE HEADPHONEAMPAACNJ501 IC503r-IrIHEADPHONESI R-CH TOSYSTEMCONTROLBOARD . TOMETERBOARD(A) IC801 CNJ302 IL1NELOUTI RV302 METERLEVEL L . 6), R-CH SWITCHING Q514,515 S508-1 IMONITORI TAPE , SOURCE yLG31MP.+ + R-CH METERBOARD(A) ICBOI OFF t ON TOSYSTEMCONTROLBOARD 8+-1VOL.REG.HV

24、OL.REG. (9.6VlQ502-504Q50I B- (-9.6Vl PL501PL502 B-(9.6V) B+ TOSYSTEMCONTROLBOARD RV5021 IBIAsl t v3TMCONTROL BOARD .4-1 I I S504-2 ,TYPEN METAL S503-2 t ITYPEill Fe-Cr -6- TC-K555ES - System Control Section - SWITCH -PM2 . TORECORDBOARD 5802 ACCIDENTAL ONERASURE tPREVENTION OFF 0638 580 I r-+-+-f-t

25、-+-+-+_t_1-CASSETEHALFOET ON t OFF F A TO RECORD BOARD 0701 0702 0703 II IC601 I-t TOSYSTEM CONTROLBOARD I FI I -7- I i55ESTC-K555ES TORECORDBOARD l e 4) ,-oACIN DOLBYCINDICATOR 0607,609 DOLBYBINDICATOR 0608,610 )TORECORDBOARD 1,2 AC5.2V r-, t B+B+ (6V)(22VI -B+(6V) FLUORESCENTDISPLAYTUBE B-t B+B+ (

26、26VI(22VI (0),TOSERVOBOARDII B+i (26V) PLI SPEED-DET 0905,906 B- (-203VI TOPLAYBACKBOARD .(POWERRESET) 5708 IRESETI S709 MEMORYI 061141TORECORDBOARD 1ISWITCHI.4.Tf LJL-_=_-, B+ (15V) 0612,613 MI -.rREELMOTOR r7IPM2 AMSSOLENOID PMI HEADSOLENOID ;G -. ,=- -iIJlXlI IC604(1/2) -8- TC-K555ES 1-2.FUNCTION

27、 OF CONTROLS Thenumbersinthephotoare keyedtothefollowingexplanations. TC-K5 COUNTER MEMORYbutton TAPEselectbuttonsand BIAScontrole Cassetteholder TIMERswitch REMOTEcontrolconnector oPeakprogrammeters oDOLBY NRswitches oMPX FILTERswitch 8MONITORswitchandindicator REC LEVEL(recordinglevel)controls HEA

28、DPHONESlevelcontrol Functionbuttons OPOWERswitch Depressthisswitchtoturnonthepower. Thelampinthecassette holder,thedisplayofthepeakprogrammeterandthetapecounter willlightup. Theindicatorlampofthepausebuttonwillblinkfor about4 seconds,indicatingthatthefunctionbuttonsare in- operativeduringthisperiod.

29、 Pressthisswitchagaintoturnthepoweroff. (eject)button Pressthisbuttontoopenthecassetteholder. eTAPEselectbuttonsand BIAScontrol Depress oneoftheTAPEselectbuttonsaccordingtothetypeof tapetobe used. Whentheappropriatebuttonis depressed,theop- timumequalizationandbiascurrentsettingsareobtainedfor recor

30、ding, andtheoptimumequalizationsettingisobtainedfor playback. Whenrecordingusinga TYPE I (NORM), TYPEII(Cr02)or TYPE III (Fe-Cr) tape,adjusttheBIAScontrol.SeeRecommended settingsfortheTAPEselectbuttonsandtheBIAScontrol:onpage 11. .Peakprogram meters WiththeMONITORswitchsettoSOURCE,themetersshowthe p

31、eakinputlevelofeach channel, andtoTAPE,themetersshow recorded levels. Theyfollowthetransientpeaksofhigh-levelinputs thataretoobrieftobefollowedbyconventionalVUmeterssothat theoptimumrecordinglevel can beaccuratelyset. Thehighestin- putofeachchannelis heldabout4secondsonthescale,except when ahigherpe

32、akoccursbefore4secondshave passed, inwhich casethatpeak isimmediatelyindicated. -9- GOOLBYNRswitches TheleftswitchturnstheDolbyNR*(Noise Reduction)systemon andoffandtherightswitchselectseithertheB-typeorC-type Dolby NR system. To recordwiththeDolby NR process, depresstheON/OFFswitch totheONpositiona

33、ndchooseB-TYPE(n)or C-TYPE(.D.). To recordwithouttheDolby NR process, presstheON/OFFswitch againtorelease. Whenplayingback, settheseswitchestothesamepositionused in recording. *Dolbyandthedouble-DsymbolaretrademarksoftheDolbyLaboratories LicensingCorporation.Noisereductionsystemmanufacturedunderlice

34、nse fromDolbyLaboratoriesLicensingCorporation. OMPXFILTERswitch NormallysetthisswitchtoOFF. When recording FM stereobroadcastswiththeDolby NR system, set ittoONifthe19kHzpilotsignalandthe38kHzsubcarrierhave notbeenadequatelysuppressed bytheFMtunerorreceiver. Ifthetunerorthereceiversuppressessuchsign

35、alsadequately (mosthigh-qualitytunersand receivers will), youdonothavetoset thisswitchtoON. MONITORswitchandindicator Whenadjustingtherecording level, setthisswitchtothereleased position(SOURCEn)toallowmonitoringofthesoundtobe recorded. Duringplayback,depressthisswitch(TAPE0.)toallow monitoringofthe

36、recorded sound.AccordingtotheMONITOR switchsetting,SOURCEorTAPEwillappear intheindicator window. During recording, usethisswitchtomonitoreitherthesourceor therecorded sound. TC-K555ES ORECLEVEL (recording level) controls Thesecontrolsadjusttherecording level. Theknobnearestthe panel is for theleftch

37、annel and theotherknobfortherightchan- nel. Toadjustthe leveloftheleftor right channel only,turnthe ap- propriateknobwhileholdingtheotherknob. OTiMERswitch You can settheunittorecord or play back at a predeterminedtime byconnectinganycommerciallyavailable timer. To record, setthis timerswitchtoREC.T

38、o play back, set ittoPLAY. (!) REMOTE control connector ConnecttheoptionalRM-50 (wired) or RM-80 (wireless) remote con- trolunittooperatethetapetransportfunctionsfrom adistance. Synchronizedoperationisalsopossiblewithselected Sony turn- tables, usingtheoptionalRM-65synchroremotecontrolunit. Read the

39、instructionmanualofyourremotecontrolunitbeforeoperating it. CDTape counter Thiscounterindicatesthetaperunningtime. COUNTER RESET button Pressthisbuttontoresetthetapecounterto0.00. GCOUNTERMEMORY button Presstorewind the tapetothe0.00pointonthetape counter. The wordMEMORYisdisplayedbelowthetapecounte

40、r. Press- ing thebuttontogetherwiththe -buttonautomaticallystarts playbackfrom0.00. When youdonot use thememoryfunction,pressthisbuttonagain. The wordMEMORYwill disappear. 4DFunction buttons It is possibletoswitchdirectlyfrom one modetoanother. The in- dicatorlampslightwhenthetapedeckisintheforward,

41、 record or pause mode. -(rewind)button:Pressthisbuttontorewindthetape. This buttonisalsoused,withthebutton,toinitiateautoplay. (stop)button:Tostopthe tape, pressthisbutton.The tape will stopautomaticallywhen it iscompletelywound ineitherdirec- tion. (forward)button:Pressthisbuttontoplaythetape back.

42、 To record, pressthisbuttonwhileholdingthe.buttondown. -(fast-forward)button:Pressthisbuttontoadvancethetape rapidly. (record)button:Pressthisbuttontogetherwiththebuttonto startrecording. (pause)button:To pauseforamomentduringrecording or playback, pressthisbutton.Thisbuttonis also usedtocontrol mor

43、e precisely thestartofrecording andtoreleasetherecord mutingmode. o(recordmuting)button:Pressthisbuttontoeliminateun- wantedmaterialandtoinsert ablankspaceduringrecording. G)HEADPHONES jack Headphonesmaybeinsertedeithertomonitortheinputsignalsto be recorded ortolistentoa recording in theplaybackmode

44、. Headphone volume isadjustablewiththeHEADPHONEScontrol. oHEADPHONES level control Thiscontroladjuststheheadphone level.Thissellingdoesnotaf- fectthepeak program meters or theoutputleveloftheLINE OUT jacksattherear. -10- TC-K555ES -3.RECORDING RECOMMENDED SETTINGS FOR THE TAPE SELECT BUTTONS AND BIA

45、S CONTROL PresstheappropriateTAPEselectbuttonreferringtotherecom- mendedsettingslistedbelow. When recording using a TYPE I (nor- mal), TYPEII(CrO,)orTYPE III (Fe-Cr) tape,adjusttheBIAScontrol also. WhilethesettingsareoptimumforSonycassettes,you maywant tochangethem whenusingcassettesproduced byother

46、manufac- tures. BIAScontrol Thiscontrolregulates bias current for TYPE I (NORM), TYPEII (CrO,) and TYPE III (Fe-Cr)cassettes.The fullcounterclockwise positiondecreases bias byabout20% fromthecenterpositionand thefullclockwisepositionincreasesit byabout20%.Generally, as biasis increased, extremehighf

47、requencieswillbe suppressed. As biasis reduced,extremehighfrequencieswillbe boosted. You can thenfindtheappropriatebiassettingfor each brandofTYPEI, TYPEIIand TYPE IIIcassettes. Tapelist(forCanada) Tapes(C-60andC9O) Type01tape SONY:LNX,SHFAMPEX: GRANDMASTER I MAXELL:UD, UDXLI,FUJI:FXI TYPE I XL ISME

48、MOREX:MRX (NORMAL) SCOTCH:MASTER ITDK:AD, ADX SONY:UCXS, EHFAMPEX:GRANDMASTERII FUJI:FXIITYPEII MAXELL:UDXL II, XLlISMEMOREX:HIGH BIASII (CrO,) SCOTCH:MASTERIITDK:SA, SAX SONY:FeCrBASF:PROFESSIONAL III TYPE III SCOTCH:MASTER III (FeCr) TYPE I SONY:METALLICOthermetaltapes (METAL) CD 0 . QiBiasreduced

49、 1-B-ia-s-I-n-c-re-a-s-ed-ooE:- 5 c. 5 0-:-_-:-,-_ FrequencyinHz RECORD MONITORING Asthistapedeckhas separate record andplaybackheads, you can easilycomparethe source and the recordedsoundsintherecord- ing mode by usingtheMONITORswitch.You canchecktherecord ing level andwhetherthereisanycontaminationon the headsthat isaffectingthe recording. .Iftheconnectedamplifierhas a tapemonitorselector,sourcel tapecompa