Kenwood-RXDM-52-L-Service-Manual电路原理图.pdf

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1、70%In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock de

2、feated. AVOID DIRECT EXPOSURE TO BEAM.MICRO HiFi COMPONENT SYSTEMRXD-M52-LSERVICE MANUAL2000-6/B51-5639-00 (K/K) 3453(HM-532-L)Panel (A29-1104-04)Knob (K29-7770-13) Knob(K29-7773-04)Front glass(B10-3606-03) Indicator(B12-0398-04)Dressing panel *(A21-) Knob (K29-7772-14)Knob(K29-7769-03)Escutcheon(B0

3、7-2525-12)*Refer to parts list on page 27. Althrough this service manual is described MD circuitdescription, it is no concern with RXD-M52(deck version). (T90-0852-05)(A70-1401-05): KMX.RC-M0302(A70-1403-05): TEH.RC-M0302EBattery cover (A09-1161-08)(E30-5828-05)(T90-0858-05)(J02-0624-08)AM loop ante

4、nna (1)Remote control unit (1)Batteries (R6/AA) (2)Feet for speaker (8)Speaker cords(2)FM indoor antenna (1)* AC plug adaptor (1)(E03-0115-05)*Use to adapt the plug on the power cord to the shape of the wall outlet.(Accessory only for regions where use is necessary)RXD-M522CONTENTS / ACCESSORIES / C

5、AUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3CIRCUIT DESCRIPTION.4ADJUSTMENT.7PARTS DESCRIPTIONS.8PC BOARD.9SCHEMATIC DIAGRAM.13EXPLODED VIEW.25PARTS LIST.27SPECIFICATIONS.Back coverContentsAccessoriesOperation to resetThe microcomputer may fall into malfunction (impossibilityto operate,

6、 erroneous display, etc.) when the power cord isunplugged while unit is ON or due to an external factor. Inthis case, execute the following procedure to reset themicrocomputer and return it to normal condition. Please note that resetting the microcomputer clears thecontents stored in and it returns

7、to condition when it leftthe factory.Unplug the power cord from the power outlet then, whileholding the menu/demo key depressed, plug the powercord again.menu/demoCautionsSYSTEMMAIN UNITDESTINATIONSPEAKERCOLORHM-532-LRXD-M52-LKETMXHLS-M52-LBLUESystem configurationRXD-M523EXTERNAL VIEW+-+-Oscillating

8、 module(W02-2732-05)AC power cord *(E30-)AC power cord bushing (J42-0083-05)Lock terminal board(E70-0127-05)Pin jack(E63-1082-05)Lock terminal board(E70-0053-05)Pin jack(E63-0164-05)*Refer to parts list on page 27. RXD-M524CIRCUIT DESCRIPTIONCD mecha unit CDM-34DECK mecha unitNJU3713D (IC4)EXPANDER

9、ICX28MDM-06MD mecha unitHD6432227N01FABack upcircuitA/DX29,IC1M30624MG-304FP(DECK)-303FP(MD)SIOSIOPWMMain uCOMPWMA/D A/DAMP hadrware circuitAMP_ system_IC (input selecter)TUNER unit (RDS unit)CD TAPE MD TUNER AUXX29,IC8A/DA/DA/DINTINTRESETEEPROMINTINTUARTA/DA/DencoderREMstnbyejectcd md/ tapeKeymatri

10、x(8keys X2 lines)LCD module (6464dot)LCD driverRESET & CEcircuit(mech ucom)3. Microprocessor:M30624MG-303FP(MD version):M30624MG-304FP(DECK version)3-1 Microprocessor periphery block diagramDESTI-DESTINATION SWRECEIVINGCHANNELUNIT321BANDFREQUENCYIFRFEMPHASISNATION(40Pin)(39Pin)(38Pin)RANGESPACEK,PKI

11、000FM87.5MHz108.0MHz100kHz+10.7MHz25kHz1AM530kHz 1700kHz10kHz+450kHz10kHz0ME1001FM87.5MHz108.0MHz50kHz+10.7MHz25kHz0AM531kHz 1602kHz9kHz+450kHz9kHz0E,TE3110FM87.5MHz108.0MHz50kHz+10.7MHz25kHz0(RDS)AM531kHz 1602kHz9kHz+450kHz9kHz01. Initializing the CD/CASSETTE Receiver1-1 Initialization MethodThe CD

12、/CASSETTE receiver will be initialized when you pressed SOUND key and turn the AC on.1-2 Contents of InitializationCD disc will be ejected from CD mechanism after initialized.2. Conditions according to the Destination( ) Port of MicroprocessorRXD-M525CIRCUIT DESCRIPTION3-2 Pin Description of Micropr

13、ocessorPin No.Pin NameI/ODescription18SW2IDetection port of 8cm disc for CD mechanism.2SCLKOClock output to DSP IC(X29,IC9).3SENSISense input port from DSP IC(X29,IC9).4FAN/DAOControl port of fan motor.5DATAOData output to DSP IC(X29,IC9).6XRSTOReset output to DSP IC(X29,IC9).7CLOKOClock output to D

14、SP IC(X29,IC9).8BYTE-Connected to ground.9CNVSS-Connected to ground.10XTINIClock input(32.768kHz).11XTOUTOClock output(32.768kHz).12RESETIReset signal input.13XOUTOMain clock output(1MHz).14VSS-Connected to ground.15XINIMain clock input(1MHz).16VCC-Power supply.17NMI-Power supply.18u-COM CEIDetectio

15、n port of AC off.19REMIInput port of remote control signal.20SCORIInput port of sub code synchronized signal.21STBY REDOStandby LED(red) control terminal.22LCD BKLTOControl terminal of LCD back light.23STBY GROStandby LED(green) control terminal.24LED CDOLED(CD) control terminal.25LED MD/TAPEOLED(MD

16、/TAPE) control terminal.26CD XLATOLatch output to DSP IC(X29,IC9).27ENC AIInput port of volume encoder.28ENC BIInput port of volume encoder.29MD RXDIData input from MD mechanism microprocessor.30MD TXDOTransmission data output to MD mechanism microprocessor.31LCD SIOData output to LCD driver.32LCD A

17、OOAO control to LCD driver.33LCD SCLOClock output to LCD driver.34LCD RSTOReset output to LCD driver.35SMK M/DIDiscrimination port for deck and MD.36SQSOIData input for CD sub Q data.37SQCKOClock output for CD sub Q data.38-40SMK1-3IDiscrimination port of destination for TUNER.41STBOStrobe output to

18、 NJU3713D(X28,IC4).42W/ROUnused.43SDAI/OE2PROM data.44SCLOE2PROM clock output.45OP SWIInput port of open switch for deck(deck version only).46LCD CSIOCE output to LCD driver.47CL SWIInput port of close switch for deck(deck version only).48PH SWIInput port of photo sensor for deck(deck version only).

19、49REC F SWIDeck forward switch input(deck version only).50HALF SWIInput port of half switch for deck(deck version only).51PLAY SWIInput port of play switch for deck(deck version only).52TYPE SWIDetection port for tape type(Normal/CrO2). 53REC R SWIDeck reverse switch input(deck version only).54SBUSY

20、-Unused.55SDATA-Unused.56RDS DATAIRDS data input(E/T type only).57TMUTEOTUNER muting control.58SDIDetection terminal of SD signal for TUNER.59STIDetection terminal of stereo signal for TUNER.60PLL DATAOData output to PLL IC.61PLL CLKOClock output to PLL IC.62VCC-Power supply.63PLL CEOPLL chip enable

21、.64VSS-Connected to ground.65PLL DOIPLL IF count input.66EMP/MONOOControl port of DE-emphasis.RXD-M526CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription67AMUTEOAudio muting control.68SPRLYOSpeaker relay control.69PWRRLYOPower relay control.70NC-Disconnected.71HPRLYORelay control terminal for headphone

22、s.72HPDETIDetection terminal of headphones. 73EVR CLKOClock output to sound controller(X29,IC6).74EVR DATAOData output to sound controller(X29,IC6).75RDS CLKIRDS clock input(E/T type only).76BACK CHK/ DECK SLT CLODetection port of back up voltage for MD mechanism. (MD version) Control port of slot c

23、losing for deck. (Deck version)77BACK ON/ DECK SLT OPOPower on for MD mechanism. (MD version) Control port of slot opening for deck.(Deck version)78MD RST/DECK CLKOReset of MD mechanism and the clock of expander IC for deck.79MD CE/DECK DATAOCE of MD mechanism and the data of expander IC for deck.80

24、MSTOPIDetection port of loading end for CD mechanism.81LD ONOControl port of laser on.82SPEEDOPlay back output port of hi-speed for CD.83DC OFFOPower control of system IC(X29,IC10) for CD.84LOAD OUTOControl port of loading out for CD mechanism.85LOAD INOControl port of loading in for CD mechanism.86

25、V/HOControl port of vertical and horizontal for CD. V/H version only87DINSWIDetection port of disc in for CD.888SW1IDetection port of 8cm disc for CD.89XY SWIInput port of sensor for vertical and horizontal. V/H version only90PROTIDetection port of current protection.91PROT TEMPIDetection port of te

26、mperature compensating for protection.92AIN LEVELIInput port of audio signal.93BACKVIInput port of back up voltage for MD.94RDS SLEVELIRDS signal level input(E/T type only).95KROIKey return signal input.96AVSS-Connected to ground.97KR1IKey return signal input.98AVREF-A/D,D/A reference voltage.99AVCC

27、-A/D,D/A power supply.10012SWIDetection port of 12cm disc for CD.Deck version only.4. CD Test Mode4-1 Entering the Test ModeTo enter the test mode, press the CD PLAY/PAUSE keyand turn the AC on.4-2 Cancelling the Test ModeTurn the AC off.4-3 Keys and Operation in the Test ModeKEYSLCDOPERATIONCDCD TE

28、ST-03Tracking servo off. PLAY/PAUSECD TEST-05All servo on.menu/demoFB operation when servo on.Sled in when servo off.CD TEST-22 HIHi speed (CD servo) when soundstop mode CD TEST-22Normal speed (CD servo) when stop mode. setCD TEST-05FF operation when servo on.Sled out when servo off.5. Cassette Deck

29、 Test Mode5-1 Entering the Test Mode5-1-1 Tape Check Mode Turn the AC on with pressing the TAPEPLAY key.5-1-2 Mechanism Check Mode Turn the AC on with pressing the TAPEPLAY andmenu keys simultaneously.5-2 Cancelling the Test ModeTurn the AC off5-3 Keys and Operation in the Test ModeTEST MODEKEYSOPER

30、ATIONDISPLAYChange-over the test mode indication.1Mecha.Testmenu/demoLoading Test(Load in)ModesoundLoading Test(Load out)SLEEPChange-over the vertical and(remote control)horizontal for LCD.rec4seconds recording2Tape ChecksetChange-over the dolby on/off.ModesoundChange-over the beat cancel on/off.RXD

31、-M527CD sectionNO.ITEMINPUTSETTINGSOUTPUT SETTINGSCD PLAYERSETTINGSALIGNMENTALIGNFORFIG.TEST MODE : While pressing the CD PLAY/PAUSE key, plug the power cord into the AC power wall output.Load the TEST DISC.1LASER CURRENTCHECKTest disctype 4Connect the DC voltmeterbetween 3and 4of CN4on X29.Press th

32、e PLAY/PAUSEkey to check that thedisplay is 03 or05.5020mA2FOCUS ERRORBIAS(Set up vertically)Test disctype 4Connect an oscilloscopeas follows.Press the PLAY/PAUSEkey . Confirm that thedisplay is 05.FE BIASVR 1(V/H version only)Optimum eye pattern3FOCUS ERRORBIAS(Set up horizontally)Test disctype 4Co

33、nnect an oscilloscopeas follows.CH1:RF(X29,CN4, 1)GND:VC(X29,CN4, 2)CH1:RF(X29,CN4, 1)GND:VC(X29,CN4, 2)Press the PLAY/PAUSEkey . Confirm that thedisplay is 05.FE BIASVR 2Optimum eye patternNote:Type 4disc: SONY YEDS-18 Test Disc or equivalent.Keep the step of adjustment.+-+-CASSETTE DECKNO.ITEMINPU

34、TSETTINGSOUTPUTSETTINGSCASSETTE DECKSETTINGSALIGNMENTALIGN FORFIG.Unless otherwise specified, set the respective switches as follows:TAPE: NORMAL INPUT: AUX IN OUTPUT: AUX OUT0dBm=0.775V. Cassette mechanism (REC/PB head adjustment)Demagnetizationand cleaning(POWER OFF)demagnetization(PLAY)cleaningRE

35、C/PB headerase headcapstanpinch rollerDemagnetize the REC/PB head byhead eraser. Clean the REC/PB head,eraser head, capstan and pinchroller with a cotton swab immersedin alcohol.REC/PB headazimuthTCC-153MTT-11410kHz,-10dB(B)PLAYAdjust the output to maximum andadjust the azimuth adjustmentscrew for t

36、he Lissajous waveformpattern of the oscilloscope tobecome close to a 45straight line. Capstan motor adjustmentTape speed(NORMAL)TCC-110MTT-1113kHz(B)PLAYVR.inside motorAdjust so that the frequency 3kHzat the center of the tape. PC board adjustmentPlayback levelTCC-130(B)PLAYVR1(Lch),VR2(Rch)-2.5dBm(

37、B)RECPLAYBias currentTCC-10812.5kHz-24dBm(A)VR3(Lch)VR4(Rch)-24dBmMeasurement equipment connectionFWDRVS(A)(B)AC voltmeterAC voltmeterOscilloscopeDistortion meterAGADJUSTMENTPARTS DESCRIPTIONSRXD-M528R37R119R128R130R122R118R121R38C111R25R24C108 C110C107C106R129W309R235R229R223R237R239R236R203R209R20

38、8R132R131R133R210R218R220R222R221R212R211R213R214R9R19R21C112R10R22C114C113R20R15R18 R17R23R16W308R116R117C9 C10R108R101R102R227R228R232R233R2R3R1R4R5R6C1C2R271R270R33R103 R104R105R106R107R31C30R32R219R238R215R216R217R12W301W306W305R262R272R273R231R11R135R136R261W310R234R8R7C13C14C109C102C101C16C15C

39、104C4C12C11C223C20C228C3C224C236C29C115R225C217C23C21C22C24C232R240C25R126R241C116C27C26 C288145TH1EBEBE BE BE BEBEBE BEBE BEBC257C256R250R255BER254R252C255R251R2534315C254R124R115R123C18C17C105R114R113R112R111R110R109R125D39Q5Q6Q105D40D31 D32D24D20D21Q8Q2Q1Q10Q11D28Q103D15D115D41IC4D19Q7Q101D26Q13I

40、C7D4W40R224W66W73W33W30W91W29W38W78W79W71W48W4W76W16W14W59W64W69W70W72W52W68W65W58W12W83W18W56W27W41W86W46W50W17W15W60W2W77W21W20W5W3W31W8W1W9W11W43W51W67W36W26W37W23W22W63W62W28W25W35W85W32W34W53W55W7W49W19W89W87W47W42W74W45W54SKIPDOWN TUNER STOPCDEJECTUPSKIPMD CD1+7V AVR.+9VAVR.AVR.POWER AMPI.PROT

41、ECTIONMUTE DRIVE.FANDRIVE.LCD CONT.+10V AVR.POWERR204R205R201R206R120W10C225C258C221C6C5C229C205C103W13W207W210W211W208W209W212W213C31C202R259C201C241R28R27R29R30R13R14C227K2K3C8C32C203C204C238W6R134R127C208W61C206C216C218C19C213C214C219C222W44C237C212C209C210R230R207W57W24C7W201W202-10V16124571IOGG

42、IO51121245113151141521B E21121315421011211617W752F1R258121K12F .OFFR256W90C252R249 6C2531T1W80C251+5.1V AVR.R257MD EJECTW3915H.P.P4RECAUX1245ENTERSETDISPLAYMENUBEBEBEB EEBE BEBWH5WH2X07-3220-10 A/5 (J70-1422-11)X07 E/5X07 D/5X07 C/5X07 B/5D34D30D33D29D27Q3Q4CN8Q9D108D107CN14D23IC3Q102S8S2S3S4 S6S1S7

43、S5A2E2CN9D101Q15CN7D25CN6J2A1J1D3D1P1CN3IC6IC1D109Q14DIGITAL INSUPERWOOFERPRE OUTLSPEAKERSROPTICALCN5CN4IC5WH4D113D110D112IC2D2CN15D106D114E6S16P3CN2CN16CN17CN1D6D13D5D37D8 D7Q12D10E1WH1D11D12D102S15Q104WH5E4WH3PHONESJ4D36D35S14S13E5WH2E3S12S11D103S10S9D104ABDFHJCEGI2 1357 46Refer to the schematic d

44、iagram for the value of resistors and capacitors.PC BOARD (Component side view)109KMOQSLNPRT2 1357 46R91R286C158C1 10C109C34R104R105R1 10R 111R77C8R76R103R101R102R125R126R124R122R123R129R127R128R115R116R1 14R112R120R121R1 19R1 17R118R45R46R44R43R51R47R48R35R36R34R32R33R40R41R39R65R66R63R67R68R55R56R

45、54R52R53R60R59 R57R58R231R232R283R223R213R214R21 1R212R215R221R222R216R217W22R301R302R303R306R304R305C7R147C9R148R258R138R139R153R188R201R186R185R202R203R204R187C160C164R154R183R184R181R182C188C182C58C65C59C64C61C187C208C120C147C148C119C118C207C243C53C117C57C69C104C115C102C103C126C125C116C131C134C13

46、3C132C68C66C67C75C74C101C152C14C16C15C33C32C50C31C22C21C23W6R14R15R1 1R12C10R1C12R18R2W4R16W3W5C40R26R25C39R259C130C129C127C128L5C1 1C63W21C174C177C175C194R161R255L6L8C226C84R261R262C153C78R251R252W13W8R172 R171C46C45W14C26C105C193W1C244C146C49W31R162C176C178C232R315C231R316R241R106C172C156C157C155C

47、235W12C236C167C210C209C28C82R253R254C224C85C225C192R190R189C25C20C227C165R317R318R320R319R49R72R64R70R71R69R8R140R141R158R152R166R165R80W7R82R81R157R13C191R313R17C251C71581418548012021404160 612011101EBEBEBEBEBSGDSGDSGDEB EBEB EBEBEBEBEBEBEBEBEBEBIC8Q13Q12Q17Q18Q19Q14Q15Q16Q3Q1Q24Q23Q25Q4Q7D22D4D2D1

48、IC7D26IC15D3Q29D25Q30Q6IC9Q22Q20Q21D24D10LchINOUTINRchOUTJIGUC81R207R78C150C72C149C201C185C205C202C163C181C171C113C124C123C1 14C135C139C136C143C42C1C41C3C52C154C55C35C36C27C24C2C56C212X1C140C145C144R85C76C51R233R234C169VR2VR1C151C166R1673 1EBX3for42151542OGI121321L7L212522614313021131113212121110X2X4R151C108C107C 111C106C137R107R108