Kenwood-HM57MP-cd-sm 维修电路原理图.pdf

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1、COMPACT Hi-Fi COMPONENT SYSTEMRXD-M57MP-H/M57MP-SSERVICE MANUAL(HM-537MP) 2004-8 PRINTED IN KOREAB51-5923-00 (K/K) 339In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laserproduct safety.KENWOOD Corp. certifies this equipment conform

2、s to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.Caution : No connection of ground line if disassemble the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others.70%Fro

3、nt cabinet assy *(A60-)Knob(Open/Close)(K29-8416-08)Knob(EQ/Bass) *(K29-)Knob(Volume)(K29-8413-08)Control panel *(A21-)Knob(Demo) *(K29-)Knob(Prog) *(K29-)CD Door *(A29-)Knob(Power)(K29-8417-08)Knob(Function)(K29-8414-08)Knob(Stop/REC)(K29-8415-08)Cass lid assy *(A53-)Rubber foot(G11-2961-08)Knob(Pl

4、ay) *(K29-)Phone jack(E11-0981-08)* Refer to parts list on page 20.RadioFans.CN 收音机爱 好者资料库Remote control unit (1)(A70-1688-08)AM loop antenna (1)(T90-0908-08)FM ANT Wire (1)(T90-0918-08)Batteries (R6/AA) (2)AC plug adapter (1)(E03-0115-05)Use to adapt the plug on the power cord to the shape of the w

5、all outlet.(Accessory only for regions where use is necessary.)RXD-M57MP2CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3ADJUSTMENT.4PC BOARD .8SCHEMATIC DIAGRAM .13EXPLODED VIEW .19PARTS LIST.20SPECIFICATIONS.BACK COVERCONTENTSACCESSORIESSYSTEM CONFIGURATIONCLASS

6、1 LASER PRODUCTLASER KLASSE 1APPAREIL A LASER DE CLASSE 1LUOKAN 1 LASERLAITEKLASS 1 LASERAPPARATThe marking this product has been classified as Class 1. It means that there is no danger of hazardous radiation outside the product.Location: BottomResetting the MicrocomputerThe microcomputer may malfun

7、ction (unit can-not be operated, or shows an erroneous dis-play) if the power cord is unplugged while thepower is ON, or due to some other externalfactor. If this happens, execute the followingprocedure to reset the microcomputer andreturn the unit to its normal operating condition.Plug in the AC po

8、wer cord to the wall outlet,and within 5 seconds, press and hold downthe 7button and press CD button. Please note that resetting the microcomputerwill clear the contents of the memory andreturn the unit to the state it was in when itleft the factory.CAUTIONSSYSTEMRECEIVERSPEAKERSHM-537MP-HRXD-M57MP-

9、HLS-M57-HHM-537MP-SRXD-M57MP-SLS-M57-SRadioFans.CN 收音机爱 好者资料库RXD-M57MP3EXTERNAL VIEW220-240V110-120VVOLTAGESELECTORTop cabinet(A01-3943-08)FM 75 ohm Ant.(E70-0200-08)Rear cabinet(A80-4494-08)Voltage SW. *(S62-0124-08)* Refer to parts list on page 20.RXD-M57MP4ADJUSTMENTSERVICE ADJUSTMENT Lubrication

10、 The mechanical parts are factory coated with a thin coat of light grease and should not require further lubrication. If a light grease is applied, be careful not to get any grease on the play/record head or erase head, hubs, pulleys, tapes reels, drive belts, or switches. Use a good lubricant such

11、as Silicon Lube G322L or Lubricate.Service Check Before aligning the mechanism, wipe off any accumulated dirt with denatured alcohol. Wipe around parts where the tape contacts and around all rotating parts. Drive belts are specially processed. Do not clean them with alcohol. Mechanical Torque Use a

12、cassette type torque gauge and check the tape mechanism. Take-up torque 35 to 70 g-cm Rewind torque 50 g-cm min. Fast forward torque 50 g-cm min. Pinch Wheel Pressure No adjustment to the pinch roller spring is necessary. It should be sufficient to give at least 40 g-cm pull force. Tape Head Servici

13、ng Each time the unit is serviced, the face of all heads should be thoroughly cleaned with denatured alcohol or commercial head cleaning solution. The playback head should be demagnetized with a commercial demagnetizer. Accumulation of tape oxide during normal operations can cause problems, includin

14、g loss of high frequencies and wow and flutter. Erase Head The erase head is properly aligned when the tape rides directly between the tape guide on the head without crinkling the tape. Play/Record and Playback Head Azimuth Adjustment To adjust the play/record and playback head azimuth screw: 1. Con

15、nect two (2) VTVMs and a dual trace scope to the stereo headphone jack (as shown) with a 32 ohm dummy load. (See Figure 1.) VTVMVTVMDUMMY LOAD JK400SCOPECH1CH2 Figure 1. Azimuth Adjustment RXD-M57MP5ADJUSTMENT 2. Insert a 10 kHz test tape (Teac MTT-1141V or Equivalent) into the tape mechanism and pl

16、ay it back. 3. While playing back the test tape, slowly turn the azimuth adjusting screw until the amplitude of both channel output waveforms is maximum and in phase. Note: Reiteration adjusting Right, lift the screw, until the amplitude of both channel output waveform is maximum. (See Figure 2.) 4.

17、 Secure the azimuth screw in place with glue or paint after making the adjustment. Figure 2. Head Output Signal Tape Speed Adjustment 1. Set the function switch to TAPE. 2. Connect a frequency counter with a 32 ohm dummy load to the stereo headphone jack. (See Figure 3.) FREQUENCY COUNTERDUMMY LOADJ

18、K400 Figure 3. Tape Speed Adjustment 3. Insert and play back a 3 kHz test tape (Teac MTT-111 or Equivalent) into the tape mechanism. 4. Insert an insulated alignment tool and adjust the tape speed potentiometer (MOTOR) until the frequency counter indicates 2940 Hz to 3090 Hz. Bias Oscillator Frequen

19、cy and Level Adjustment 1. Set the function switch to TAPE and the record and play tape mechanism to RECORD. 2. Connect a VTVM and frequency counter to test point R/P HEAD. 3. Adjust bias oscillator coil L203 until the frequency counter indicates 67 kHz 0.5 kHz. RXD-M57MP6ADJUSTMENTTUNER ALIGNMENT P

20、ROCEDURE Equipment needed: 1. AM Signal generator 2. FM Signal generator 3. DC Voltage meter 4. Oscilloscope 5. Output meter (VTVM) AM Alignment Step S/G Frequency Dial SettingIndicator Adjust Remarks 1 450 kHz (1 kHz 30% mod.) 612 kHz Connect oscilloscope or VTVM to speaker jack T101 Adjust for max

21、imum output 2 531 kHz (1 kHz 30% mod.) Low end Connect DC voltage meter to test point Vt and ground L102 Adjust until Vt equal to 1.5 0.05V 3 1602 kHz (1 kHz 30% mod.) High end Same as step 2 Confirm Vt: 6.58.5V 4 612 kHz (1 kHz 30% mod.) 612 kHz Same as step 1 L103 Maximum output 5 1404 kHz (1 kHz

22、30% mod.) 1404 kHz Same as step 1 TC101 Maximum output 6 Repeat steps 4 and 5 to minimize tracking error 7 999 kHz (1 kHz 30%mod.) 999 kHz Same as step 1 Offset is less than 6 dB. 60 cmAM SIGNAL GENERATORAM LOOP ANTAM LOOPANTENNADUMMY LOADVTVMTEST UNITFigure 4. AM IF/RF Tracking RXD-M57MP7ADJUSTMENT

23、FM Alignment: TEST UNIT Figure 5. FM Band Frequency Coverage Alignment Connect FM S/G to ANT inputs (mod 1 kHz 22.5kHz dev.) Step S/G Frequency Dial Setting Indicator Adjust Remarks 1 87.5 MHz Low end Connec t DC Voltage meter to test point Vt and ground Confirm Vt: 1.7 0.2V 2 108 MHz High end Same

24、as step 1 Confirm Vt: 8.5 1V Figure 6. FM Band/Tracking FM GENERATORDUMMYANTENNATP1TEST UNITDUMMYLOADVTVMOSCILLOSCOPEVtGROUND DC8ACEBD2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)CN501SW511KEYHEADPHONESW510SW509SW516SW506SW512SW503SW19

25、SW515SW505SW514SW513SW500SW502SW504SW517SW507SW501SW508LED500IC501CN1CN3JACK2CN4JK400PHONESCN403OPEN/CLOSETIMERSETTIMERON/OFFPRE/ALBUMUPPRE/ALBUMDOWNEQ/1158X-BASSDEMOPROGRAMRECPLAY/PAUSECDTAPE/MODETUNER BANDSTANDBY31DIRECTIONF-SKIP UPF-SKIP DOWNSTOPVOLUMER513R514R515R516R500R521R520R519R517R518R524R

26、509R510R511R508R507R506R505R504R503R522R501R502R523R512L405L406L408J4C2C8C1C402C4012FHJLNGIKMO135746CN103IC101IC202IC402CN101CN102D105IC302CN402CN302CN303CN304Q428CN301IC201CN201D202D108D106D102D101D103D104D409D107D201ZD101ZD410Q303Q304ZD302ZD301D401CN401LRSPEAKERSCN404Q416D410D411Q401Q111Q107Q115Q1

27、01Q114Q204Q209Q205Q113Q302Q408Q301Q414Q413Q404Q425Q426Q109Q208Q213Q427Q415Q412Q210Q211Q217Q216Q215Q212Q214Q110Q402Q409Q105Q103Q104Q112Q106Q102FP101IC102IC301IC401IC103MAINC139C142C144C176C170C177C174C148L105L108C235C257L202C261C263C258C204C243C262C203C264C272C270C238C463C444C330C328C332C440C302C322C

28、447C127TC101C130C134C154C135C131C115C153C114C109C111C113C104C107C420BP101TIEGND1OSCGND2TRAOSC2CF101CF102CF103CF104C428C416C415C438C429ECECL407L403L404L409L413L412C465L-chR-chC439GNDC445C418C340C331C441C446C321L203C325C327C461C265C224C271J4J3J2J5J14J7J27J24J89J30J13J15J22J29J55J53J90J91J72J62EBEBJ61J

29、59J80J78J79J71J54J43915111311IGO137118169J52J20J18L101L301J36J40J37J58J48J83J70J82J74J77J88J76J63J60J57J46J45J75J66J64J65J86J67J51RL401J87J73J41J128541J35J34J33J25J11J10J26J23J16J9J17J19J21J28J32J38J56L201C240C242C241J68J69J39J42J50J1J6R155R105R121R456R407R320R309R460R421R426R471R473R462R461R450R449

30、R424R423R463R464R472R321R319R490R314R322R431R252R260R242R221R209R222R254R152R147R128R169R135R112R109R163R164R156R127R167R168R151R445R494R146R145R144R138R137R173R224R223R313R237R475R248R246R241R240R233R220R217R474R468R498C117C119C223C335C150C116T101L104L103L1022413112L106X101X102L107C100C250R251R245R

31、247R226R219R202C206C221C205C201C220R213R214R211R218R253R129R153R150R227R334R333R301C462R171R492R465R420C432115R466R467R485C457R478R479R484R493R122R126R307R4301851914142815R480R1R179R124R149111118169102011C123C162C160C126C158C145C146C179C178 C175C157R148C136C236C267C222C225C253C303C305C339C323C460C44

32、2C435C450C449C437C411C410C188C124C129C102C105AM VTFM VTC155C149C132C165C125C103C101C172C112C110C133C161C167C159C152C106C108C128C326R166R174R113R111R160R158R170R119R120R133R318R315R134R142C141C140C118C147C173C169C268C254C269C266C255C260C245C291C226C202C252C163C164C171C151C143R118R115R154R161R114R162R

33、110R159R103R125R404R414R482R454R310R453R452R455R405R496R491R448R440R476R477R303R304R312R351C443C313C319C317C315C455C364C480C477C479C324C320C448C336C312C314C318C316C310C306C304C363C311C309R352R335R238R216R228R215R235R207C259C256R205R206R259R204R302R495R415R483R417R428R422R434R457R458R459R429R470R419C

34、417C451C453C414C419C421C431C412C413R432R425R427R433R418R106R108R107R469R403R444R308R406R165R123R101R104R102R157R172R116R117R140R143R141R139R210R212R249R261R262R264R265R267R266R236R201R250R243R244EBEBEBE BE BE BB EB EB EB EBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEB EB EB EB EB EB EB EBEBEBEBEBEB EB ERefer to

35、the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)910PQSUWYRTVX2135746Q704Q709Q711Q706Q707Q708Q712Q703Q710Q705MP3CN704CN705ZD703ZD701ZD705D703D702ZD704ZD702CN700CN707CN706CN702IC702CN703CN701IC701IC704IC706IC700IC705IC707IC703C770J9L704J27C700L710R700J48J42

36、J40C780C724R748J41J24J54R743R747R745R744R746C779C740C723C722C713C710C709J8X701C777R726R727J34J38C791J52J53C734C754C707C735C720C4P4P3P5P14P1J11C1J2C782C787C788R773J16J19J30J32J35J39C768C798C797C705C796C704J33L701C711C715C793R805R812J1J15J17J20J21J22P2J26R759R752R753C759C765C733C708C719C795C747L703J37

37、J25J18L708J29J31C2L707J28R826R756C760J47C758J46C703J55R750J45J44J43L709L702L706J14J13J12J5J6R804R809C3J10J23J4J3R797R740R796R798R728R795J36J51J50J49C701C785C784R790R793R711R715R714R713R712R710R709R794C714C769C712C789C790R4C757R813R802R825R823R824R811C786R814R806R807R803R799R801R800R810R808R822R821R8

38、20C716R717C718C717R3C783C721R742C774C773C772R2R725R724R723R722C728C727R721C742R789R738R783R782R781C741C738C736R732R729R730R733R731C771C748C739C737C792R6R5C749C744C731R702C753R704C751C745C752R701C755R751R754C762R755C761R758R757C764C750R703R749C756R741R706G79FEVREFTEG63R819R818R760G84R768R769R770R771R

39、772R761R762R763R764R765R766R767C767R774R775R776R777R778R779R780R787R788R791R792C7663V3C763R734R815R720R816R719R817R705C732R735R736R737C775R785C776R739C781R784C778R786C746G78R1C725C726C730C743C7291911530315051808110012413131151612OGI131612153016171481161732334849641192131163217EBEBEBEBBEBEBEBEBEBECN6

40、01CN607CN602D601ZD601D605D607CN608CN605LCD601DISPLAYD602CN609Q604CN604CN603Q607D604D603LED605LED604D606D608CN606Q608Q601Q606Q609Q603Q605IC601D917Q904ICP900Q903D912D910D909D911CN901D914D916D915D913D908D906D905D907D901D903D904D902Q902ZD901POWER R653C628R654C606C607C609TP46TP48TP21TP22TP36TP47TP37TP39T

41、P40TP38 TP41TP52TP51TP50TP44TP43C608C605R682R681R680C619R646C668R602C630R601R639R638R634R635TP49TP42TP53R611TP45C648C614R620R621R616R656R657R661R625R658R623R643R644C666R642R631R628R655R648R649R647R650R645R604R603R618J13J131191521191ECCE101118118J2J3J4R659R619J5J6R664R622J18J27J30C622C610J35R629C602C

42、613J33L602R627J31J26J25J17J24J23J16J22J21J20J19X602R605J28R615C603C601C618R606R607C660J7J8R660J11R624J14J15R610R609R608J32R632J34R652R651R663R626J29X601R617J9J10J12R666R662R633R6371140308081100515031EBEBE BE BBEB EWHT-AWHT-BORG-AORG-BRED-BRED-ABLKF901F904F902F903C921C922C912C910C909C911R908J1J2C918C

43、917R905R904R907C919R906C920R901R902R909C914C916C915C913C908C906C905C907C901C903C904C902C925R903ECCBE111EBLUAC2AC1BLU1RL901TR901L901C923Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)11122ACEGIBDFHJ135746RXD-M57MP1314GND LINESIGNAL LINEB LINECN70

44、4Q705CN705MMQ704Q712CN706Q7033/3DISPLAY-CN6022/3CN700MAIN-CN302CN701MAIN-CN3042/3ZD703Q708ZD702Q707ZD701Q706CN703CN702CN707D702ZD704Q709Q711D703ZD705Q710CN6013/3DISPLAY-DISPLAY-3/3CN607CDMECHANISMCD TRAYMOTORSRAM(SDJ)ZD705MTZJ5.1BZD704:MTZJ6.2BZD702,703:MTZJ3.3BZD701:MTZJ3.9BD702,703:1SS133Q705,709:

45、8550:8050Q703,704,706-708,710-712:MC74HC14ADIC706:AS7C31024-15IC705:TA2153FNIC704:TA2092NIC703:TA7291SIC702:TC9462FIC701:TC94A02F-007IC700:NJM7805FAIC707:MC776 R7852200.1+B87653241V-CEN14COM2E3R74856KDA5B6R74747K47KR74547KR746C87R74447KFR743 56K1112910GNDLD910100VRPD11121515111314F+T+13149416T-162F-

46、R739 10KR737 10KR736 10KR735 10KFENTEO26631254RFN2VCCGMADRFGCRFOGNDTPIFNIFPIGVSWAGCIN283029278710912111322LDORF RPINTNIMDIRFGOSELRFCTPKC242523TEB2VRORFRPBTCTENVROSEB202118191514SBADFEO161743824P2 VREFHSSWPDOTMAXTMAXSZDET293028272625VCOREFLPFNLPFOP VREF313332RFISLCOVCOFAVSS136353437VSS2DATASFSYTESIOO

47、VDD2MONITCOFSSPDASPCKSBSYBCKVSS1LRCKCLCKVDD1SBOKMBOVA OUTD OUT2023222117191816151214131110IPF798655648FEIRFCTRFZIAVDD1RFRP39424140FOOTEITEZISBADTSIN4544434647TROVREF4950RFGCFMOTEBCDMOFVO5152535455IO2FLGA2VREFSELFLGBFLGCFLGDVDD3VSS3IO0IO161575859606462636566TESINDM OUTIO3CKSEDACTTRESIO1VSS4PXIPXOVDD4

48、69676870717472737576BUS3UHSOEMPHHSOTEST0321TSMODTEST4RSTCCE979998BUCKVSS5VDD5959694DVDD88TEST2TEST3BUS0BUS2BUS19193929089LODVRTEST1DVSL87868485RODVSRXIXVSSXOXVDD8182837877798010uHL70310R79051575256986986R78982K47u16+C777C7740.1C7410.047100PC7711KR78127KR782R7832.2KR78447K2PC775C773 0.22C772 0.22R786

49、10uHL7040.022C792C739 2700P100C737 0.01C7360.015R7323.3K47u16+C74047KR73347PC738R729 220KR730 68KR731 10K1KR7384700PC746R727C743470P3.3KR726470PC7423.3KR7213.3K49483.3KR7253.3KR7240.047C7493.3K3.3KC7440.047R723R7220.047C7320.047C731525157560.022C78347u16C747X70116.9344MHz30PC71830PC71747u16+C7230.02

50、2C72147u16+C7222.2KR7974.7KR74082.2KR7964.7KR7987R7952.2KR7284.7K59091929397961C714C769180PC7120.02247u16C713+22U16+C71047u16C709+100R7170.022C716GNDDM+FM+DM-FM-SLT13425661342523161421OUT (+)3VIN2OUT (-)3PW VCC3PWGND3OUT (-)2PWGND21112OUT (+)2PWVCC2108913151416OUT (-)4SVCC1VIN4OUT (+)4PWVCC4VIN3SGND