Kenwood-RXD-303-Service-Manual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.BASSPUSHOPENPUSHOPENDECKPLAYAD

2、ECKREC/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 produc

3、t 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 BEAMUnplug th

4、e 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 malfunction (impossibilityto opera

5、te, 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 CORD PSRTS NoXD-303RXD-303KEL

6、S-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-N503E30-5829-08XD-553RXD-553YMXTELS-N

7、553E30-5829-08XD-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 EE1LS-N653E30-5475-05XD-753RX

8、D-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 Refer to system configurat

9、ion.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 tothe shape of the wall outlet.(Accessory only for regions where use isnecessary.)AC (E03-0115-05)plug adaptor (1

10、)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 DESCRIPTIONS.13PC BOARD.14SCHEMATIC

11、DIAGRAM.19EXPLODED VIEW.31PARTS LIST.33SPECIFICATIONS.43ContentsAccessoriesSYSTEM CONFIGURATIONCautionsAC 220-240VAC 110-120VGNDFM75 AMANTENNA+-FRONTSPEAKERS(6-16)RLLRDVD/VIDEO INPUT+-SURROUNDSPEAKERS(8-16)R LONOFFSURROUNDLock terminal board(E70-0052-05)Cover(F07-1692-01)Metallic cabinet *(A01-)Slid

12、e 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 comes out.(1) Turn the friction arm counterclockwiseusing a sc

13、rew 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-OUT Rch-OUT+12VREC PBAMPAMP5V(600mV)DECK (580mV)CD (1.2V)Lch-OUT Rch-OUTD OUTXCOUTXCIN(16.9344MHz)DA

14、TAPOWER RELAYXIN XOUT XCIN XCOUT(10MHz)(32.768KHz)MAIN CLOCKTIMMER CLOCKMPX CLKDATAu-COMTUNER+C1,C2A,BCANCELBEATOUTINREC-MUTEA/BAEQ BEQSPEANADATA/CLKRDS ICPROTECTIONSPRELAYATTMUTEBEEP+TIMERSTANDBY5VR/PERASESOUNDOSCBIASBIAS TRAPBA3126NCXA1498SK1OTHER chH.P.RchLchRF AMPAN8806SBPICKUP/LOADINGDRIVERCD D

15、SPMN662748KEY(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.LOUDNESSINPUT SELECTORINPUT VOL.MAIN VOL.3BAND TONEL/RFR

16、ONTSUV VOL.SELECTORINPUT SELECTOR/E.VOL.A2(X32)PHEAD SWPLAY/RECPLAY BACK/REC EQ.A DECK14,16IC3J2SPEAKERSJ1(X14)AMPQ14,16BASS REVISECIRCUITAC/DCPROTECTIONMTXMTXJ4SLchSRchS1ONOFFX1X2GNDIC55VAVR+V-VD51GNDD52GND5VAVR-35VAVR12VQ15Q11AVR9VQ135VAVRQ145VAVRX32,Q2DECKTUNERLOADING DRIVERPICKUP DRIVERCD DSP.RF

17、 AMPCONTROL ICELECTRIC VOL-40VMAIN u-COMFIL12VMAINFIPIC1ED1KEY1-3D2 D3BASS 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/353/353ERXD-503/503E/553/553E/553-GR/553E-GRRXD-A33/A53/A53

18、-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 the AC poweris turned on when pressing the ENTER key.

19、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 BALANCECENTER INPUT SELECTORTUNER SOURCE DIRECTOFF M

20、UTEOFF 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) DVD/VIDEO DISPLAYDVD(5) CLOCK CLOCK0:00(E,E2,T)/12:

21、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 CUSTOM EQ.13FLAT EX. BASSON 3D LEVELOFF1-4 Mechanism

22、 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.1-4-3 Error display If both mechanism (CD/DECK) error

23、 occur, the display isindicated as follows. CD & X ERRSetTypeBANDRecevingFrequencyRangeChannelSpaceIFRFFM87.5MHz108.0MHz100kHz+10.7MHz25kHzK,PK1AM530kHz1700kHz10kHz+450kHz10kHzFM87.5MHz108.0MHz100kHz+10.7MHz25kHzM,Y(1)K2AM530kHz1610kHz10kHz+450kHz10kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzM,Y(2),XE1AM5

24、31kHz1602kHz9kHz+450kHz9kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzE,E2E3RDSAM531kHz1602kHz9kHz+450kHz9kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzMW531kHz1602kHz9kHz+450kHz9kHzTE4RDSLW153kHz729kHz9kHz+450kHz9kHz2. Destination List of TunerRXD-303/353/503/553/653/A33/A536CIRCUIT DESCRIPTIONAUX MODEAUX(DVD VIDE

25、O) 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 clock is per-formed before the test mode is entered. If the diagnosis result is OK,

26、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 timesthe system stopswith “ERR1“ and “ERR2“ displayed.3. Test Mode3-1 Setting of the T

27、est 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 ModeKEYDISPLAYOPERATIONSELECTNormal indication10 20 30 00 (- -)MENUNormal indicationAUTO STEREO MA

28、NUAL MONOBACKTUNING DOWNSOUND CONTROLNormal indicationTUNING UPTUNING MODEP. ch DOWNENTERNormal indicationP. ch UPDISPLAY/DEMOFL indication ONFL indication OFF50HzCD OPEN/CLOSE50HZ/50100Hz/75100HzKEYDISPLAYOPERATIONToneMAXMAX MAIN CENTER DISC 1ToneMINToneCENTEDISC 2Normal indicationAUX LEVEL MAX AUX

29、 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 rewinds to the REC starting position and plays back automatically. If theREC/ARM

30、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 SWDISPLAYHALF SWDISPLAYA PACK SW“T“ (The first dot)ACrO2 SW“A“ (The second dot)B PACK S

31、W“P“ (The third dot)BRVS REC SW “E“ (The forth dot)B FWD SW“T“ (The sixth dot)B CrO2 SW“E“ (The seventh dot)A PLAY SW“Moon“ (Segment) B PLAY SWSun(Segment)RXD-303/353/503/553/653/A33/A537CIRCUIT DESCRIPTIONKEYDISPLAYOPERATIONCD-PLAY/PAUSE05 :*Tracking-servo on.(Change the mode05 and 03 :Tracking-ser

32、vo 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 it 2 times.)TAPE EQEx. 0102CD track no. up.TAPE EQCD FF search.Th

33、e 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,IC101M30622MA-A62FP3DOT DRIVER(LC75711NED)4DECK MECHA550X14,ED1X13,IC

34、11TUNER 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 DiagramRXD-303/353/503/553/653/A33/A538CIRCUIT DESCRIPTIONInput Volt

35、ageKEY3KEY2KEY1(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 2AUXBACK3.493.98DISC 1STOPENTER4.014.524.544.80KEY OFFKEY OFFKEY OFF* The input

36、voltage value : for 4.8V in a standard voltage 4-2 Key MatrixPin No.Pin NameI/ODescriptionACTIVEHL1SLEVELIRSD signal level input.2CE2IBackup detection input 2.AC ONAC OFF3SDISD detection input.4STIStereo detection input.5PLL CEOPLL IC chip enable.6RDS DATAIRDS data input.7PLL CLKOPLL IC clock output

37、.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(+5.0V).17NMI-Connected to VCC.18REMISignal input of remote contro

38、l.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 MUTEODeck recording mute control.MUTE ON26R/PODeck recording/playba

39、ck changeover control.RECORDINGPLAY27NOROBdeck 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 driver.32A CrO2IAdeck CrO2 detection switch input.NORMALCrO233FL CLK

40、OClock output to VFD dot driver.34FL CEOChip enable output toVFD dot driver.35FL RSTOReset signal output to VFD dot driver.36F RECIBdeck forward recording prohibition detection switch.37B CrO2IBdeck CrO2 detection switch input.CrO2Normal38A PACKIAdeck cassette tape detection switch input.39A PLAYIAd

41、eck head position detection switch input.40B PACKIBdeck cassette tape detection switch input.4-3 Pin Description of MicroprocessorRXD-303/353/503/553/653/A33/A539CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescriptionACTIVEHL41R RECIBdeck reverse recording prohibition detection switch.42B PLAYIBdeck head p

42、osition detection switch input.43BIASODeck bias on/off changeover control.ONOFF44BEAT.CODeck beat cancel on/off changeover control.ONOFF45B SOLOBdeck solenoid control.46CPMODeck capstan motor control.47A SOLOAdeck solenoid control.48TAPE MUTEODeck line mute control.MUTE ON49A/BODeck A/B changeover c

43、ontrol.BA50A EQOAdeck 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.OFFON56LED TIMEROControl port of timer LED.OFFON57NC-Unused.58OPEN SWICD open

44、 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 motor control output.64VSS-GND.65CLOSE OCD motor control output.66BRKMOCD mo

45、tor 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. ON71SLT SWICD start limit switch input.72MLDOCD DSP command load signal output.

46、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 mechanism.79TU ON/OFFOTuner power on/off output.80A-MUTEOControl port of audio m

47、uting.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 DATAOExpander ROM data output.88EPROM CLKOExpander ROM clock output.89PROTECTIDetection port of protection.90SPEANAIInput port of music signal.91TYPEIDiscrimination of tuner destination.92BPHIBdeck reel sensor input.93APHIAdeck reel sensor input.94,95KEY3,KEY2IA/D key input(