Kenwood-RXD503-cs-sm 维修电路原理图.pdf

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1、70%MINI HiFi COMPONENT SYSTEMRXD-303/303E/353/353E/503/503E/553/553E/SERVICE MANUAL(XD-303A73)* 2000-3/B51-5605-00 (K/K) 3633DISC1DISC2DISC3STANDBYTIMERDISPLAY/DEMOMENUSELECTBACKENTERSOUNDCONTROLTUNINGMODEMULTICONTROLREC/ARMREVERSEMODETAPE EQ.PHONESDISC SKIPOPEN/CLOSEEX.BASSPUSHOPENPUSHOPENDECKPLAYA

2、DECKREC/PLAYBVOLUMECONTROLPanel assy *(A60-)Knob *(K29-)Panel(CD) *(A29-)Front glass *(B10-)Knob *(K29-)Phone jack(E11-0280-05)553-GR/553E-GR/653/653E/A33/A53/A53-GR* Refer to parts list on page 33. In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the prod

3、uct relating to laserproduct safety.*Refer to page 2 if you want to know system configuration.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlock defeated.AVOID DIRECT EXPOSURE TO BEAMRadioFa

4、ns.CN 收音机爱 好者资料库Unplug the power cord from the power outlet then,while holding the ENTER key depressed, plug thepower cord again. Please note that resetting the microcomputer clears thestored contents and returns to the factory set condition.Operation to resetThe microcomputer may fall into malfunct

5、ion (impossibilityto operate, erroneous display, etc.) when the power cord isunplugged while power is ON or due to an external factor.In this case, execute the following procedure to reset themicrocomputer and return it to normal condition.(Main unit only)ENTERSYSTEMMAIN UNITDESTINATIONSPEAKERSP COR

6、D PSRTS NoXD-303RXD-303KELS-N303E30-5829-08XD-303ERXD-303EE1LS-N303E30-5829-08XD-353RXD-353YMXTEHLS-N353E30-5829-08XD-353ERXD-353EE1LS-N353E30-5829-08XD-353(M3)RXD-353MLS-N353(M3)E30-5829-08XD-353(M5)RXD-353(M5)M5LS-N353(M3)E30-5829-08XD-503RXD-503KPELS-N503E30-5829-08XD-503ERXD-503EE1LS-N503E30-582

7、9-08XD-553RXD-553YMXTELS-N553E30-5829-08XD-553ERXD-553EE1LS-N553E30-5829-08XD-553(M3)RXD-553MLS-N553(M3)E30-5829-08XD-553(M5)RXD-553(M5)M5LS-N553(M3)E30-5829-08XD-553-GRRXD-553-GRET1LS-N553-GRE30-5829-08XD-553E-GRRXD-553E-GRE1LS-N553-GRE30-5829-08XD-653RXD-653TEXLS-N653E30-5475-05XD-653 ERXD-653 EE1

8、LS-N653E30-5475-05XD-753RXD-553MXLS-N753E30-5838-08XD-753(M3)RXD-553MLS-N753(M3)E30-5838-08XD-753(M5)RXD-553(M5)M5LS-N753(M3)E30-5838-08XD-A33RXD-A33KPLS-N353E30-5829-08XD-A53RXD-A53KPLS-N553E30-5829-08XD-A73RXD-A53KPLS-N753E30-5838-08FM indoor antenna (1)AM loop antenna (1)Speaker cords (2)(XD-653

9、Refer to system configuration.only)Remote (T90-0836-05)(T90-0852-05)(A70-1337-05): RC-553.KPMXYK1P1M5(A70-1338-05): RC-553E.TEE1T1Battery cover (A09-1151-08)control unit (1)Use to adapt the plug on the power cord to the shape of the wall outlet.(Accessory only for regions where use is necessary.)AC

10、(E03-0115-05)plug adaptor (1)Provided in the speaker packageBatteries (R6/AA) (2)RXD-303/353/503/553/653/A33/A532CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS. 2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM .4CIRCUIT DESCRIPTION.5ADJUSTMENT.10WIRING DIAGRAM.12PARTS DESCRI

11、PTIONS .13PC BOARD . 14SCHEMATIC DIAGRAM . 19EXPLODED VIEW .31PARTS LIST.33SPECIFICATIONS .43ContentsAccessoriesSYSTEM CONFIGURATIONCautionsRadioFans.CN 收音机爱 好者资料库AC 220-240VAC 110-120VGNDFM75AMANTENNA+-FRONTSPEAKERS(6-16 )RLLRDVD/VIDEO INPUT+-SURROUNDSPEAKERS(8-16 )RLONOFFSURROUNDLock terminal boar

12、d(E70-0052-05)Cover(F07-1692-01)Metallic cabinet *(A01-)Slide switch(S62-0001-05)Pin jack(E63-0095-05)Lock terminal board(E70-0124-05)Slide switch(S62-0077-05)Lock terminal board(E70-0123-05)RXD-303/353/503/553/653/A33/A533EXTERNAL VIEWDISASSEMBLY FOR REPAIRBOTTOM SIDEHOW to open the tray if not com

13、es out.(1) Turn the friction arm counterclockwise using a screw driver and the like. (2) Pull out the tray frontwards by hand when the tray comes just out.RXD-303/353/503/553/653/A33/A534BLOCK DIAGRAMCLKPLL-CLKPLL-CEPLL-DOSDSTPLL-DATAS-LEVELDE-EMPHR/PLATCHLch-OUTRch-OUT+12VRECPBAMPAMP5V(600mV)DECK (

14、580mV)CD (1.2V)Lch-OUTRch-OUTD OUTXCOUTXCIN(16.9344MHz)DATAPOWER RELAYXINXOUTXCINXCOUT(10MHz)(32.768KHz)MAIN CLOCKTIMMER CLOCKMPXCLKDATAu-COMTUNER+C1,C2A,BCANCELBEATOUTINREC-MUTEA/BAEQBEQSPEANADATA/CLKRDS ICPROTECTIONSP RELAYATTMUTEBEEP+TIMERSTANDBY5VR/PERASESOUNDOSCBIASBIAS TRAPBA3126NCXA1498SK1OTH

15、ER chH.P.RchLchRF AMPAN8806SBPICKUP/LOADINGDRIVERCD DSPMN662748KEY(X13)TUNER PACKFM75 ANTB DECK(X28)DECKMECHAIC2IC1CN1IC12RDSINPUT ATT.M62498FPIC11 M62498FPMD/DVD INIC4IC1CD MECHACDM-35D.OUT(OPTICAL)MAIN u-COMM30622MA-A42FP(X07)Q3,4Q1,2Q13,15-10dBMUTET1K1IC2IC101(X14)AMPGNDAMJ1DEMODULATORJ2L.P.F.LOU

16、DNESSINPUT SELECTORINPUT VOL.MAIN VOL.3BAND TONEL/RFRONTSUV VOL.SELECTORINPUT SELECTOR/E.VOL.A2(X32)PHEAD SWPLAY/RECPLAY BACK/REC EQ.A DECK14,16IC3J2SPEAKERSJ1(X14)AMPQ14,16BASS REVISECIRCUITAC/DCPROTECTIONMTXMTXJ4SLchSRchS1ONOFFX1X2GNDIC55VAVR+V-VD51GNDD52GND5VAVR-35VAVR12VQ15Q11AVR9VQ135VAVRQ145VA

17、VRX32,Q2DECKTUNERLOADING DRIVERPICKUP DRIVERCD DSP.RF AMPCONTROL ICELECTRIC VOL-40VMAIN u-COMFIL12VMAINFIPIC1ED1KEY1-3D2D3BASS MID TREVOLUMEBASS BOOSTCANCEL CIR.FIPDRIVERREMOCONINTERFACEATT.BACKUPu-COMQ13,CN2(T/E TYPE ONLY)RXD-503/553/653E/T TYPEONLYEXCEPT FORK/P TYPERXD-653/653ERXD-303/303E/353/353

18、ERXD-503/503E/553/553E/553-GR/553E-GRRXD-A33/A53/A53-GRRXD-303/353/503/553/653/A33/A535CIRCUIT DESCRIPTION1. Initialization1-1 Setting of the Initial ConditionsWhile pressing the ENTER key, plug the AC cord into ACwall outlet.1-2 Initializing Operation A Microcomputer is initialized for start when t

19、he AC poweris turned on when pressing the ENTER key.At that time, CD and cassette mechanisms are also initial-ized. During the initial conditions, the display shows *INITIAL-IZE* and after that it will be returned to standby condition. 1-3 Initial Items(1) AMPLIFIER POWER ON/STANDBYSTANDBY VOLUME14

20、BALANCECENTER INPUT SELECTORTUNER SOURCE DIRECTOFF MUTEOFF AUTO POWER SAVEOFF AUX(DVD/VIDEO) INPUT LEVEL-3 DISPLAY MODEAUTO BEEP SOUNDON(2) TUNER BANDFM FREQUENCYLOWEST FREQUENCY AUTO/MONOAUTO PRESET CHANNEL ch(3) CASSETTE DECK REVERSE MODEREVERSE TAPE A/BB TAPE DIRECTIONFORWARD(4) AUX (DEV/VIDEO) D

21、VD/VIDEO DISPLAYDVD(5) CLOCK CLOCK0:00(E,E2,T)/12:00am(OTHER) Program Timer RecodingON TIME 0:00(E,E2,T)/12:00(OTHER)OFF TIME 0:00(E,E2,T)/12:00(OTHER) Program Timer PlayON TIME 0:00(E,E2,T)/12:00(OTHER)OFF TIME 0:00(E,E2,T)/12:00(OTHER) Program on ModeOFF SLEEP TIMEROFF(6) Equalizer EqualizerOFF CU

22、STOM EQ.13FLAT EX. BASSON 3D LEVELOFF1-4 Mechanism Initialization1-4-1 CD Mechanism If a mechanism error occurs *C ERR* is indicated on thedisplay.1-4-2 DECK mechanism When the initial condition becomes NG for the thirdtime,decide the error.The error condition is displayed as X ERR on the display.1-

23、4-3 Error display If both mechanism (CD/DECK) error occur, the display isindicated as follows. CD & X ERRSetTypeBANDReceving FrequencyRangeChannelSpaceI FRFFM87.5MHz108.0MHz100kHz+10.7MHz 25kHzK,PK1AM530kHz1700kHz 10kHz +450kHz 10kHzFM87.5MHz108.0MHz100kHz+10.7MHz 25kHzM,Y(1)K2AM530kHz1610kHz 10kHz

24、+450kHz 10kHzFM87.5MHz108.0MHz 50kHz+10.7MHz 25kHzM,Y(2), XE1AM531kHz1602kHz 9kHz +450kHz 9kHzFM87.5MHz108.0MHz 50kHz+10. 7MHz 25kHzE,E2E3RDSAM531kHz1602kHz 9kHz+450kHz 9kHzFM87.5MHz108.0MHz 50kHz+10.7MHz 25kHzMW531kHz1602kHz 9kHz +450kHz 9kHzTE4RDSLW153kHz72 9kHz 9kHz +450kHz 9kHz2. Destination Lis

25、t of TunerRXD-303/353/503/553/653/A33/A536CIRCUIT DESCRIPTIONAUX MODEAUX(DVD VIDEO) key+AC-ONTUNER MODETUNER(BAND) key+AC-ONTAPE MODETAPE A() key+AC-ONCD MODEDISC3 key+AC-ONMENU key+AC-ONSUB CLOCK OSCDIAGNOSIS The oscillation diagnosis(existence of oscillation and measurement of period) of a sub clo

26、ck is per-formed before the test mode is entered. If the diagnosis result is OK, the system enters the test mode.If the diagnosis result is NG, the oscillation of the sub clock is diagnosed again. If the result is OK, thesystem enters the test mode. If the diagnosis result is continuously NG 5 times

27、the system stopswith ERR1 and ERR2 displayed.3. Test Mode3-1 Setting of the Test Mode3-2 Cancel of the test modeBy turning the power off, the system is initialized and the test mode is canceled.3-3 Contents of the Test Mode3-3-1 Tuner Test mode3-3-2 Aux Test Mode3-3-3 Deck Test ModeKEYDISPLAYOPERATI

28、ONSELECTNormal indication10 20 30 00 (- -)MENUNormal indicationAUTO STEREO MANUAL MONOBACKTUNING DOWNSOUND CONTROLNormal indicationTUNING UPTUNING MODEP. ch DOWNENTERNormal indicationP. ch UPDISPLAY/DEMOFL indication ONFL indication OFF50HzCD OPEN/CLOSE50HZ/50100Hz/75100HzKEYDISPLAYOPERATIONToneMAXM

29、AX MAIN CENTER DISC 1ToneMINToneCENTEDISC 2Normal indicationAUX LEVEL MAX AUX LEVEL MINDISC 3Normal indicationLch MAX Rch MAX CENTER EX.BASSNormal indicationEX. BASE ON EX. BASE OFFKEYDISPLAYOPERATION* Mechanism SW DetectionIf the REC/ARM key is pressed, the system record for 4 seconds.Then, it rewi

30、nds to the REC starting position and plays back automatically. If theREC/ARM key is pressed, during the 4 seconds REC operation, the system records fur-ther for 4 seconds, then returns to the starting position of the first 4 seconds REC opera-tion and plays back.REC/ARMNormal display HALF SWDISPLAYH

31、ALF SWDISPLAYA PACK SWT (The first dot)A CrO2 SWA (The second dot)B PACK SWP (The third dot)B RVS REC SW E (The forth dot)B FWD SWT (The sixth dot)B CrO2 SWE (The seventh dot)A PLAY SWMoon (Segment) B PLAY SWSun(Segment)RXD-303/353/503/553/653/A33/A537CIRCUIT DESCRIPTIONKEYDISPLAYOPERATIONCD-PLAY/PA

32、USE05 :*Tracking-servo on.(Change the mode05 and 03 :Tracking-servo off.alternately by the stop key.)DISC 101 :STOPAdjustment value/mean value(Cyclically changed in the07TB value FB valuestop mode only.)08TG value FG value09TO value FO valueSTOP01 :Stop (Press it 1time.)Cancel the test mode. (Press

33、it 2 times.)TAPE EQEx. 0102CD track no. up.TAPE EQCD FF search.The pickup travels outward.(Press it more than 400msec.)REVERSE MODEEx. 0201CD track no. down.REVERSE MODECD FB search.(Press it more t han 400msec.)The pickup travels inward.3-3-4 Test ModeX28,IC1DECK SYSTEM IC(CXA1498S)6X14,IC1X13,IC10

34、1M30622MA-A62FP3DOT DRIVER(LC75711NED)4DECK MECHA550X14,ED1X13,IC11TUNER PACKVaccume FluorescentDisplay (HNA-15MM18T)2SYSTEM IC(M62498AFP)X32,IC263DSP IC(MN662748)PLL IC(LC72131)3357X13,IC122CD MECHARDS IC(E, T)(BU1923F)(CDM-35)4. Microprocessor : M30622MA-A62FP4-1 Microprocessor Periphery Block Dia

35、gramRXD-303/353/503/553/653/A33/A538CIRCUIT DESCRIPTIONInput VoltageKEY3KEY2KEY1(V)Pin94Pin95Pin970.000.23REV. MODEPOWER0.260.75RECEX. BASSDISPLAY/DEMO0.791.29TAPE EQ.CD PLAY/ PAUSETUNING MODE1.331.84OPEN/CLOSEBANDMENU1.882.38DISC SKIPTAPE BSOUND2.422.93DISC 3TAPE ASELECT2.963.45DISC 2AUXBACK3.493.9

36、8DISC 1STOPENTER4.014.524.544.80KEY OFFKEY OFFKEY OFF* The input voltage value : for 4.8V in a standard voltage4-2 Key MatrixPin No.Pin NameI/ODescriptionACTIVEHL1SLEVELIRSD signal level input.2CE2IBackup detection input 2.AC ONAC OFF3SDISD detection input.4STIStereo detection input.5PLL CEOPLL IC c

37、hip enable.6RDS DATAIRDS data input.7PLL CLKOPLL IC clock output.8BYTE-GND.9CNVSS-GND.10XCINITimer clock input(32.768kHz).11XCOUTOTimer clock output(32.768kHz).12RSTIReset signal input.NORMALRESET13X OUTOMain clock output(10MHz).14VSS-GND.15X INIMain clock input(10MHz).16VCC(BU)-u-com power supply(+

38、5.0V).17NMI-Connected to VCC.18REMISignal input of remote control.19RDS CLKIRDS clock input.20BLKCKISub code synchronous signal input. LH Interrupt21CE2IBack up detection input.AC ONAC OFF22BEEP SOUNDOBeep sound output.23PLL DOIPLL IC data input.24B EQOEqualizer control of B deck play back.25REC MUT

39、EODeck recording mute control.MUTE ON26R/PODeck recording/playback changeover control.RECORDINGPLAY27NOROB deck Normal/CrO2 changeover control.NORMALCrO228MCLKOCD DSP command clock signal output.29STATICD DSP status signal input.30MDATAOCD DSP command data output.31FL DATAOData output to VFD dot dri

40、ver.32A CrO2IA deck CrO2 detection switch input.NORMALCrO233FL CLKOClock output to VFD dot driver.34FL CEOChip enable output toVFD dot driver.35FL RSTOReset signal output to VFD dot driver.36F RECIB deck forward recording prohibition detection switch.37B CrO2IB deck CrO2 detection switch input.CrO2N

41、ormal38A PACKIA deck cassette tape detection switch input.39A PLAYIA deck head position detection switch input.40B PACKIB deck cassette tape detection switch input.4-3 Pin Description of MicroprocessorRXD-303/353/503/553/653/A33/A539CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescriptionACTIVEHL41R RECIB d

42、eck reverse recording prohibition detection switch.42B PLAYIB deck head position detection switch input.43BIASODeck bias on/off changeover control.ONOFF44BEAT.CODeck beat cancel on/off changeover control.ONOFF45B SOLOB deck solenoid control.46CPMODeck capstan motor control.47A SOLOA deck solenoid co

43、ntrol.48TAPE MUTEODeck line mute control.MUTE ON49A/BODeck A/B changeover control.BA50A EQOA deck play back equalizer control.51MCONT AIMulti control jog input 1.52MCONT BIMulti control jog input 2.53VOL BIVolume encoder input 2.54VOL AIVolume encoder input 1.55LED STBYOControl port of standby LED.O

44、FFON56LED TIMEROControl port of timer LED.OFFON57NC-Unused.58OPEN SWICD open detection switch input.59CLOSE SWICD close detection switch input.60TD SWITraverse down switch input port of CD mechanism.61TU SWITraverse up switch input port of CD mechanism.62VCC(BU)-u-com power supply(+5.0V).63OPEN OCD

45、motor control output.64VSS-GND.65CLOSE OCD motor control output.66BRKMOCD motor control output.67RTLORotary motor opposite direction(CCW) output.68RTRORotary motor positive direction(CW) output.69DC OFFOPower control of CD DSP IC.ONOFF70CD PROTICD protection input(Only at selector CD).NORMALPRO. ON7

46、1SLT SWICD start limit switch input.72MLDOCD DSP command load signal output.73SQCKOCD sub code clock output.74SUBQICD sub code input.75D MUTEOCD DSP muting output.76XRSTOCD DSP IC reset control.RESET77PHTRICD mecha. Stop switch input.78PS SWITray position & disc detector switch input port of CD mech

47、anism.79TU ON/OFFOTuner power on/off output.80A-MUTEOControl port of audio muting.81ATTO-10dB attenuation output.ONOFF82POWEROPower relay control. 83SP RELAYOControl port of speaker relay.84EV CLKOClock output to E.volume.85EV DATAOData output to E.volume.86EMPHASISOTuner emphasis output.87EPROM DAT

48、AOExpander ROM data output.88EPROM CLKOExpander ROM clock output.89PROTECTIDetection port of protection.90SPEANAIInput port of music signal.91TYPEIDiscrimination of tuner destination.92BPHIB deck reel sensor input.93APHIA deck reel sensor input.94,95KEY3,KEY2IA/D key input(key3,key2).96AVSS-GND.97KE

49、Y1IA/D key input(key1).98VREF-A/D reference voltage input.99AVCC(BU)-u-com power supply(+5.0V).100PLL DATAOPLL IC data output.RXD-303/353/503/553/653/A33/A5310ADJUSTMENTNo.ITEMINPUT SETTINGSOUTPUTSETTINGSAMPLIFIER SETTINGSALIGNMENT POINTSALIGN FORFIG.Unless otherwise specified, the individual switch

50、es should be set as following : POWER : ON SELECTOR : CD1IDLE CURRENTConnect a DC voltmeter to CN3 ( 1 2 ), LchCN4 ( 3 4 ), RchX07, A/2.VOLUME : 0VR1 (L)VR2 (R)X07, A/210 mV(a)DC voltmeter10 mVCN3(a)1234L(+)L(-)R(+)R(-)Amp adjustment RXD-A53(K/P), RXD-503/553(K/P) onlyCD player adjustmentFIG.No.ITEM