Philips-DCC-600-Service-Manual 电路图 维修手册.pdf

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1、NOO NOO Service Digital Compact Cassette Recorder 70DCC600 1008/058/068 CCC COMPACT CASSETTE TABLEOF CONTENTS Technical specification2 W Dismantling instructionIservice hints3-12 Blockdiagram13-14 Description of signal names15-24 Service test program25-26 Start-up procedure27 Adjustment table28 Serv

2、iceIadjustment remarks29 Service tools29 Handling chip components30 Wiring diagram31-32 Mainboard Component layout33-34 Circuit diagram35-37 Digitalboard Circuit diagram38-40 Electrical measurements.41-42 Component layout.43-44 Frontboard Component layout.45-46 Circuit diagram.47-48 Supplyboard Circ

3、uit diagram.49 Component layout.49 ReadlWriteboard Circuit diagram50-52 Component layout53-54 Loadingassy Exploded view55-56 Mechanical partslist57 Trayindicationboard Circuit diagram57 Component layout57 Partslist.57 Tapedeck Dismantling DCC-head58 Exploded view59-60 Partslist.60 Wiring diagram61-6

4、2 RED1-deck electronic63 DCC-indication board64 Exploded view of set65-66 ,1echanical partslist67 :Iectrical partslist68-79 PublishedbyConsumer ElectronicsPrintedinThe NetherlandsCopyright reserved Subjecttomodification4822 72524031 PHILIPS PCS 60 385 RadioFans.CN 收音机爱 好者资料库 TECHNICALSPECIFICATIONS

5、GENERAL: Power supply Power consumption Dimensions(wx h xd) Weight DIGITAL1/0: Format Sampling frequency Unbalanced chinch 115I230V +15% switchable 30W max. 5Wmax.instand by : 360 x 102 x 300mm : 2,5kg : AES/EBU according IEC958 : 32kHz144,1kHz 148kHz+0,1% : 75Q ANALOG OUTACC Output voltage Amplitud

6、e linearity Phase non-linearity Channel unbalance Output resistance Channel separation Muting (search) SNR : 0,84Vrms 2dB(200nWb/m) : 40Hz.14kHz within 5dB 250Hz.1OkHzwithin 3dB :2max.at1kHz : 3dB : 200Q : 26dB at 1kHz 46dB at 20Hz.20kHz : 100dB ANALOGIN(digitalrecordingfromanaloginput) Sampling fre

7、quency:44,1kHz Input sensitivity. 150mV Max. input voltage2Vrms +2dB Input impedance50kQ Dolby-modeFe(typeI)Cr(typeII) Dolbyoff47dB50dB DolbyB56dB59dB DolbyC64dB67dB ANALOG OUTDCCPLAYBACK(DACperformance) THO: 3% HEADPHONE OUTPUTDCC PLA YBACK Output voltage Frequency range Amplitude linearity Phase n

8、on-linearity Channel unbalance Output resistance Outband attenuation Channel separation Muting (search) . SNR THO+ noise : 2Vrms +2dB(OdBdigital level) : 20Hz.14,5kHzatfs=32kHz 20Hz.20kHz atfs=44,1kHz 20Hz.22kHzatfs=48kHz : +0,5dB : 2max.at1kHz 0,5dBat1kHz : 200Q : 60dB above 30kHz : 80dBat1kHz 70dB

9、at20Hz.20kHz 100dB 90dBI93dBAtypo 85dBat1kHz 82dBat20Hz.20kHz Output voltage Channel unbalance Output impedance Load impedance Output power Channel separation Muting (search) SNR THO+noise : 5Vrms max. : 4dB : 140Q :32I120I600Q :27I44I27mW : 75dBtypoat1kHz : 100dB : 88dB : 82dBat1kHzI3dB ANALOG OUTD

10、CCRECORD 000 org CONTROLSCONNECTIONS IndicationIndicationIndicationIndicationIndicationIndication onRecorderinDiagramonRecorderinDiagramonRecorderinDiagram 1.CassetteHolder10.LEVEL3365A.ANALOGIN1301 2.Display140011.PHONES1311ANALOGOUT1306 3.MARK WRITE141312.BALANCE3311B.DIGITALIN1315 MARK ERASE14171

11、3.REC.PAUSE1403DIGITAL OUT1315 RENUMBER1412APPEND1406C.VOLTAGE SELECTOR1203 DIG.lANALOG1409REC/MUTE1407D.MAINS1202 4.RECORDING LEVEL331214.TEXT1410 5.PREVIOUS1415TIME1418 6.STOP1404COUNTER RESET1411 7.PLAY140215.DOLBY B/C NR1405 8.NEXT141416.REPEAT1420 9.BACKWARD142117.OPEN/CLOSE1401 SIDE A-B141918.

12、IR SENSOR7410 FORWARD141619.POWER ON/OFF1204 3 pes60387 RadioFans.CN 收音机爱 好者资料库 WARNINGS WARNING Alllesandmanyothersemi-conductors are susceptible to electrostatic discharges (ESD). Carelesshandlingduringrepaircanreducelife drastically. Whenrepairing. makesurethatyouare connectedwiththesame potentia

13、lasthe mass ofthesetviaa wrist wrap with resistance. Keep components and tools also at this potential. CDATTENTION Taus les ICetbeaucoupdautres semi-conducteurssontsensiblesaux dacharges statiques (ESD). Leurlongevitepourrait etre considerablement ecourtee parIefaitquaucune precaution nest prisealeu

14、r manipulation. Lorsdereparations.gassurerdebienatre falie aumemepotentialquelamasse de Iappareil at anfilerIebraceletsartiduneresistancede securite. Veilleracoqueles composantsainsique les cUlilsqueIonutilisesoient egalementace potentiel. ESD WARNUNG Aile ICs und viele andere Halbleiter sind emplin

15、dlich gegen elektrostatische Entladungen (ESD). UnsorgtiiltigeBehandlung beiderReparatur kann die Lebensdauer drastisch vermindern. Sorgen siedatur,dassSie im Reparaturfall l.ibereinPulsarmbandmitWiderstandmitdem Massepotential des Gerates verbundensind. halten Sie Bauteile und Hillsminel ebenlalls

16、auf diesem Potential. WAARSCHUWING Aile ICs en vele andere haltgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg erYoor dat u tijdens reparatieviaeen polsbandmetweerstand verbonden bentmet het

17、zeltde potentiaal als demassavan het apparaal. Houdcomponentenen hulpmiddelenoakop ditzeltde potentiaal. CJ)AVVERTIMENTO TuttiIee parecchi semi-conduttori sono sensibili aile scariche statiche (ESD). Laloro longevita potrebbe essere fortemente ridattaincasodinonosservazione dellapiu grande cauzione

18、alia loro manipolazione. DuranteIeriparazioni occorre quindi essere collegato aliastessopotenziale che quello della massa dellapparecchio tramiteunbraceialetta a resistenza. Assicurarsichei componenti e anchegliutensili conqualisilavara siano anche a questa potenziale. Safety regulations require tha

19、t the set be restoredtoits original conditionandthat partswhichare identicalwiththose specifiedbe used. Veiligheidsbepalingen vereisen, dat het apparaatinzijnoorspronkelijke toestandwordtteruggebracht endatonderdelen, identiek aan de gespeciliceerde worden toegepasl. Varo! Avattaessajasuojalukitus o

20、hitettaessa olet alttiina nakymattomalle lasersiiteilylle. Alii katso sateeseen. CD Beijeder Reparatursinddiegeltenden Sicherheitsvorschriftenzu beachten. Der Originalzustand des Gerats dartnichtverandert werden fUrReparaturensindOriginal-Ersatzteilezuverwenden. CD Lenormedisicurezza esigonacheIappa

21、recchio venga rimesso nelle condizioni originali echesiano utilizzati pezzidirtcambiago identici a quellispecificati. Varning! Osynlig laserstnllningniirdenna deliiroppnadoch sparreniirurkopplad. Betrakta ej stnllen. CD Lesnormesdesecurite exigent que Iappareilsoitremis a etat darigine etque soientu

22、tiliseesles pieces de rechange identiques a celles specifiees. -Pour votre securite, ces documents doivent etre utilises par des specialistes agrees, seuls habilites a reparer votre appareilenpanne-. 4 pes60 388 DISMANTLING INSTRUCTIONS DEMOUNTING COVER B - A - 5 L HAS.109Q G E,F 5 pes60 389 DEMOUNT

23、ING TRAYFRONT FRONT C.Ifthe tray does not move properly you can use a screw driver K-M PULLONBOTH SIDES pes60 390 6 JPULL - F C TURN GEARWHEEL BACKWARDS EtrJ G HAS.I091 6 L PULL I I I, , I, I, I I I I, I I I I, I, I I, I, , , , , , , I I I, I I I, I, I, I I, I, , , , I, I, I I DEMOUNTING DIGITAL BOA

24、RD 7 A f t ! l ! ! i C D B.ff !,. Tir IiI :I : K tf ti, TI II OUTF PUSHANDPULL HAS.I09? 8 pes60391 DEMOUNTING POWER SUPPLY MAIN PANEL TAPE DECK HAS.I093 11111111111111111111111111111111111111111 888 ;.-._I ,;.:-:.,I 1-: _/T: -_-,.-.J III, J, -1-,r- .,:- ,1._-.,.- 4.-_._I;,.II ._.-.j. _.,.-I I -.-1:1

25、-I I -._It I , I: B - - - - -._- :-. I -.-.-. A 9 10 pes60 392 OPENING AND CLOSING SERVICE COVER G A CUTOUTANDREMOVESERVICE LOCK ACUTOUTANDREMOVESERVICE LOCK ) A CUTOUTANDREMOVESERVICE LOCK c B TURNAROUND 180 DEGREES TURNAROUND 180 DEGREES HAS1094 1112 pes60393 BLOCKDIAGRAM w a. ATA1 SOl) ) WS), SBD

26、A (DAAB), SBEF (EFAB) C D A,LT ADAS, LT DAI, LT DEQ, LT DDSP DATAC,LTSBC Alogn. RECin relay 7- p -p- S ADC AK5339 +6dB +16dB REC.BALANCEREC.LEVEL T DRAM 2565256ls IlSadaPtor MN41464 fDlfDl r- Gf10 WRITE AMP. 1 dJF SBF TDA1316T Digitalin SAA2001h 1 DAI lefte ADAS e - SBC ERCODDSP Digital out M51581P

27、IlL SBFr SAA2011SAA2021SAA2031 ;:;: SAA2041 ! GlLTCBUS NI I 1 SAA2001 I AUXcurr. IrLOOP nht FILTER 0 Ishift 1 tt Ir 25615READ AMP. 1 vco TDA1317 i l- lfJLTBUSLTBUS DEQ20 J ! L SAA2051 1 1 IReferenceIHAnalog 1 vol1aoesfeedback DC J f- DOLBY NR f- AnalogPB 1HEA 2sts CXA1331 equalization .- +1dB Analog

28、 out - +B DACdolbyBlollo i A. SAA7321 dolbyc 0 Speedservo SPEED I- search0 loopfilter Silence detection r- - GIS-interlace:SCL, SWS, SDATA (AD Headphoneout I S-interlace:SCL, SWS, SDA RI S Capstanmotor IJ:. 16021604eS-interlace:SCL, SWS,FDA I- .CaPSta(r- 1605 1 -L I A. driverimotoryB u:IIIIIillIIl e

29、S-interlace:SCL, SWS, FDAC (FDA -=l-l I 0S-interlace:SBCL (CLAB), SBWS ( MUTE 1 DATAO.7(EDO.7), FLAGt, FLAG2 L- 1 ADRSO.7,RASN, WRN,RDATAO,RD QuickreverseIf- WDATA, WCLOCK PeakTapeend170617071708 1 0TCHO.7(CHO.7), TAUX(AUX) detectiondetectionsensor illJIJ 0WCLOCK, WDATA IR-EYE fDl 1 S-interlace:SCL,

30、 SWS, SDA I GlCLOCK, DATA,RTS ADC(6bit) 1 lfJLTCNTO,LTCNT1, LT CLK,LTOAT I GlLTCNTOC,LT CNTtC,LT CLKC, LT L.1- F1IAC)-DISPLAY,-. TMP87CK70F 80C528driver ; motor_rReel1Reel 1 sensor1sensor2 loJ I 1 KEYBOARD 1 8MHzi ! ;0. TraymotorTray1436 1437 Easy-linkin driver I motor_IillTapetranp.! and loadingJ E

31、asy-linkout L. - VB VA lAC)(ACj 0J i JI J ZSJ ZSZSZSZS I 11 EJI ZS,:r0 - Mains I- Voltage I- Mains12A ZSZS filterselector transformer +fI T zsO ZS MA _._._._._._._._._._.-.-._._._._._._._._._._._._._._._.-1 POWER SUPPLYF1F230V+Psv7V+7V L._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._.J

32、CS459141314 Descriptionofsignalnames Signal nameSignal flowFunction 128FsSBC-n.C.clock 256FsSBC.DAIsystem clock SBC-SBF SBC-ADC SBC-DAC SBC-ADAS Explanation Clock output from SBC, 128 x sampling frequency. Master clock signal (256 x sampling frequency) for SBF, DAI, ADC, DAC and ADAS.Isgenerated by

33、SBC with exception of the mode Digital Record.Inthat case theDAI is the MASTER and supplies 256Fs on MSTCK pin. See also MSTCK. Fs=32 kHz for DAB, DSR orBS(digital audio broadcast). Fs=44.1kHz forCDand DCC. Fs=48 kHz for professional recording and OAT. ADRSO ADRS1 ADRS2 ADRS3 ADRS4 ADRS5 ADRS6 ADRS7

34、 ADSDI ADSEL ANA L ANA R ASL An AnDAC AUX AUXENV AZCHK BIASA BIASD CAP A CAP B CAPSTAN CASN CHO CH1 CH2 CH3 CH4 CH5 CH6 CH7 CHROME DDSP-DRAM ADC-DAI DAI-gnd read amp-analog Pb equalization DAI-+5V SBC-DAC SBC-DAC DEQ-DDSP DEQ-Main IlP DDSP-test pin DEQ-high DEQ-low Capstan motor-speed control Main I

35、lP-7359 DDSP-DRAM DEQ-DDSP REDeck electronic- AnalogPbequalization address lines analog/digital serial data input control line signal line control line attenuation attenuate DAC auxiliary channel output auxiliary envelope azimuth check control line control line control line control line control line

36、 channel n control line 15 8 address linestoDRAM to locateanaddress for writing data into or reading data from memory. DAI input for serial data from AD convertor (see also S- DATA). Serial data output source selection Analog signal left (right) channel playback analog compact cassette. Audio sample

37、 length selection Data input for DAC to set his attenuation register. Control line (output from SBG) connected to DAC attenuation input. Sliced output from DEQ of auxiliary channel data (bit rate 12 kb/s) routed to DDSP input TAUX. _ Digital representation of the AUX signal and monitors during DCC s

38、earch mode the start of a track. Monitors the azimuth of channels 0 and 7 (output of DDSP). Bias current for internal AID converter of DEQ2 Bias current for internal AID converter of DEQ2 Via connection points A and B of capstan motor the reference of the integrated speed control is controlled by th

39、e additional external speed control. Low output level switches the capstan motor on. Column address strobe for DRAM DEQ channel n outputtoDDSP inputsTCHO.TCH7. Indication if a chrome analog cassetteisinserted. Chrome Cassette is high level. CS45915 Signal nameSignal flowFunctionExplanation Signal na

40、meSignal flow FunctionExplanation EFABERCO-SBCError flag1 2S error flag directly connected toSBC input SBEFtogive CKACODAI-n.C. Testpin Frequency accuracy check output.(1=frequency deviationthe error status of bytes being transferred during data 0,14% = error condition)playback (see also SBEF). F24D

41、DSP-SBC24.576 MHz masterMaster clock from SBCtoDDSP and DEQtodetermine CLABERCOHSBC 1 2S bit clock Bit clock I/O from ERCO directly connected to SBC I/ODEQFrontP clock Clock frequency for data transfer.from theDAI(see also CLK24). CLK22SBC-n.C. 22.5792 MHz clock FASTMainP-wind motorcontrol lineHigh

42、output level switches +12V supplytothe motor bridge output driverinordertoobtain high speed. CLK24SBC-DDSP 24.576 MHz master Master clock from SBC to DDSP, ADAS and DEQ toFDASBFHADASfiltered dataBidirectional serial data line between SBF and ADAS SBC-DEQclock determine the length of tape frame and i

43、nter frame gap.InSBCHADASrespectively SBC and ADAS. SBC-ADAS case of a digital recording this clockisnot synchronous with the sampling frequency and its related frequencies,Data transferin1 2S format, carrying 32sub-band channels coming from the DAI (see also F24).digital audio data (see also FDAF a

44、nd FDAC). Each SWS period 2x18 bits data are transferred. DAABERCOHSBC serial data(12S) Bidirectional 1 2S serial data line between ERCO and SBC (see also SBDA). FDACADASHSBCfiltered dataFiltered data transfer between ADAS and SBC (see also FDA). DATAFrontPHMainP data lineCommunication line FrontP-

45、MainP. FDAFADASHSBFfiltered dataFiltered data transfer between ADAS and SBF (see also DATAOERCOHDDSP data line n Parallel data lines for symbol transfer between ERCO andFDA). DATA1 DDSP. DDSPisthe master. DATA2 See alsoEDO.ED7. FDIRSBC-SBFdirection controlControl line output from SBC to SBF and ADAS

46、toindicate DATA3 SBC-ADASthe mode of operation. FDIR=1; decoding mode (sub-band DATA4 synthesis) DATA5 FDIR=O;encoding mode (sub-band analysis). DATA6 DATA7 FLAG1ERCOHDDSPdata bus flagData lines for symbol transfers between ERCO and DDSP. FLAG2DDSP acts as the master (see also ED8 and ED9). DCC RESE

47、TMainP-ADAS control line Reset output for MainPfor digital board. FLAGIDAI-gnderror flagError flag input MainP-DAI FLAGODAI-n.c.error flagError flag output MainP-DDSP FRESETSBC-SBFfilter resetReset output from SBCtocause a general reset for SBF DEEMDACSBCHDAC deemphasize DACControl line for DAC SBC-

48、ADASand ADAS. DEnsensor tape counter- Indication of reelSignals enable theP: FSYNCSBC-SBFfilter synchro-At filter sync, with a repetition rate of Fs/32, the transfer of DET2Main and FrontP movement todetect if both reels move - tape end indication SBC-ADASnizationthe 2x32 sub-band samplesisstarted.

49、Fsync ensures each source for tape counter SBFissynchronized with the SBC to permit only transfer to calculate speed while WIND and REWIND of sub-band 0 data during FSYNC. position of tape HRESETmute circuit-FrontPcontrol lineSwitches FrontPon/off. Via mute circuit thereisdetected DIGEYEDEQ-test pin digital eye o