Kenwood-RXD-803-Service-Manual电路原理图.pdf

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1、MINI HiFi COMPONENT SYSTEMRXD-803/803E/853/853E/A83SERVICE MANUAL(XD-803A83)*2000-5/B51-5622-00 (K/K) 363370%DISC1DISC2DISC3STANDBYTIMERDISPLAY/DEMOMENUSELECTBACKENTERSOUNDCONTROLTUNINGMODEMULTICONTROLREC/ARMREVERSEMODETAPE EQ.PHONESDISC SKIPOPEN/CLOSEEX.BASSPUSHOPENPUSHOPENDECKPLAYADECKREC/PLAYBVOL

2、UMECONTROLI/Panel assy (A60-1771-31)Knob (K29-7721-04)Panel (A29-1082-12)Front glass (B10-3582-02)Knob (K29-7722-04)Phone jack(E11-0280-05)In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the product relating to laserproduct safety.*Refer to page 2 if you

3、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 BEAMIllustration is RXD-853(M).Unplug the power cord from the power out

4、let 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 operate, erroneous display, etc.) wh

5、en 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)ENTERFM indoor antenna (1)AM loop antenna (1)Remote (T90-0836-05)(T90-0852-05)(T90-0837-05)(A70-1367-

6、05): RC-853.KPMXY(A70-1368-05): RC-853E.TEE2Battery 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)Batteries (R6/AA) (2)Surround speaker system Surround speak

7、er (2)Speaker cord (2)Speaker stabilizer (8)Center speaker (1)Speaker cord (1)Speaker stabilizer (4)SYSTEM CONFIGURATIONCautionsRXD-803/803E/853/853E/A832CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM.4CIRCUIT DESCRIPTION.5ADJUSTMENT.11P

8、C BOARD.13SCHEMATIC DIAGRAM.19EXPLODED VIEW.35PARTS LIST.37SPECIFICATIONS.Back coverContentsAccessoriesSYSTEMMAIN UNITDESTINATIONSPEAKERSP CORD PARTS No.SPEAKERSP CORD PARTS No.XD-803RXD-803ELS-N523E30-5829-08CRS-N503E40-5542-05XD-803ERXD-803EE2LS-N523E30-5829-08CRS-N503E40-5542-05XD-853RXD-853YMXTE

9、LS-N573E30-5829-08CRS-N553E40-5542-05XD-853ERXD-853EE2LS-N573E30-5829-08CRS-N553E40-5542-05XD-853(M3)RXD-853MLS-N573(M3)E30-5829-08CRS-N553E40-5542-05XD-A83RXD-A83KPLS-N573E30-5829-08CRS-N553E40-5542-05RXD-803/803E/853/853E/A833EXTERNAL VIEWAC 220-240VAC 110-120VGNDFM75 AMANTENNA+-FRONTSPEAKERSDIGIT

10、ALOPTICAL(6-16)RLLRFRONT+-SURROUNDSPEAKERS(12-16)R LSUPERWOOFERPRE OUTCENTERSPEAKER(6-16)OUTCENTERSURROUNDSUB WOOFER6CH.INPUTLock terminal board(E70-0052-05)Cover(F07-1692-01)Metallic cabinet (A01-3739-11)Slide switch(S62-0001-05) Pin jack(E63-0095-05)Lock terminal board(E70-0045-05)Pin jack(E63-011

11、6-05)Pin jack(E63-1008-05)Oscillating module(W02-1114-15)Lock terminal board(E70-0046-05)Illustration is RXD-853(M).DISASSEMBLY FOR REPAIRBOTTOM SIDEHOW to open the tray if not comes out.(1) Turn the friction arm counterclockwiseusing a screw driver and the like. (2) Pull out the tray frontwards by

12、hand when the tray comes just out.BLOCK DIAGRAMCLKPLL-CLKPLL-CEPLL-DOSDSTPLL-DATAS-LEVELDE-EMPHR/PLch-OUT Rch-OUT+12VREC PBAMPAMP5V(600mV)DECK (1.2V)CD (1.2V)Lch-OUTRch-OUTDIGITALOUTDATAPOWER RELAYXIN XOUT XCIN XCOUT(10MHz)(32.768KHz)MAIN CLOCKTIMMER CLOCKMPX CLKDATAu-COMTUNER+C1,C2A,BCANCELBEATOUTI

13、NPROTECTIONATTMUTEBEEP+PRO LOGIC5VTUNERDECKCDVIDEODATACLKLINLOUTRINROUTCOUTSOUTIFCKDSP CSIFDIACK+5V9V+3STEREO VIRTUALSTANDBYTIMERLED CONTROLDATACLKSTBRSTSchCchMUTEATT.-10dBLchRch1MA120/70A/BB1/2LBASS2SE CLKS4LTRELSELOLINLBASS1SE DATASE CE C OUTS OUTS3S2S1C1C2C4C3SE CESE DATASE CLK+12V+S.CchSPHP-DETM

14、UTEATT.-10dBCDDECK6ch INPUT0dB-6dB0dBTUNERVIDEO -6dB0dBINPUT ATT.(RECK=H)R/PERASESURROUNDOSCBIASBIAS TRAPBA3126NCXA1498SOTHER chH.P.RchLchRF AMPAN8806SBPICKUP/LOADINGDRIVERCD DSPKEY(X13)TUNER PACKFM75 ANTB DECK(X28)DECKMECHAIC2IC1IC12RDSINPUT ATT.M62498FPL,RCH INIC1CD MECHACDM-35DIGITALOUT(OPTICAL)M

15、AIN u-COMM30622MA-A42FP(X13)Q3Q1IC1-10dBMUTEIC2IC4(X14)AMPAMJ1DEMODULATORJ2LOUDNESSINPUT SELECTORINPUT VOL.MAIN VOL.3BAND TONEL/RFRONTVOL.SUB(X32)PHEAD SWPLAY/RECPLAY BACK/REC EQ.A DECK14,16IC3J2SPEAKERS(X14)AMPBASS REVISECIRCUITAC/DCPROTECTIONSLchSRchX1X2GND5VAVRD33D32GND40VAVR-35VAVR12VQ38Q34AVR9V

16、Q315VAVRQ325VAVRX13,Q8DECK (BIAS)TUNERDRIVERLOADINGPICKUP DRIVERCD DSP.RF AMPCONTROL ICELECTRIC VOL-40VFIL12VMAINFIPIC1ED1KEY1-3BASSVOLUMEFIPDRIVERREMOCON INTERFACEBACKUPu-COMQ13,CN2IC11MID TRESELECTORZin=100KDOLBYDSPIC14OTHER CHVIDEO/6CH400mV INCch IN6CHSLch IN6CHSRch IN6CHSUB WOOFER6CH(X14)DECK (M

17、ECHA)DOLBY PL DSPAVR5VELECTRIC VOL(C,Sch)(L,Rch)DOLBY PL DSPRDSDECKCDD5GND-HB+HB+LB-LBHNA-15MM18TJ4CchAMPAMPIC2IC2Q8Q6IC1IC13VOLUMEELECTRICJ3S.W. PRE-OUTQ5 Q7SPEAKERS(X07)E/T TYPEONLYRXD-A83/803/803E/853/853EE/T/M/XDESTINATIONRXD-803/803E/853/853E/A834RXD-803/803E/853/853E/A835CIRCUIT DESCRIPTION1.

18、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.At that time, CD and cassette mechanisms are also initial

19、-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 MUTEOFF AUTO POWER SAVEOFF AUX INPUT LEVEL-1 AUX INPUT MOD

20、E2ch(EXCEPT E,E2,T) DISPLAY MODEAUTO(2) TUNER BANDFM FREQUENCYLOWEST FREQUENCY AUTO/MONOAUTO PRESET CHANNEL ch(3) CASSETTE DECK REVERSE MODEREVERSE TAPE A/BB TAPE DIRECTIONFORWARD(4) 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)/1

21、2:00(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(5) Equalizer EqualizerOFF CUSTOM EQ.13FLAT EX. BASSON DSPOFF SURROUNDOFF1-4 Mechanism Initialization1-4-1 CD Mechanism If a mechanism error occurs “C“ is indicated on t

22、he dis-play.1-4-2 DECK mechanism When the initial condition becomes NG for the thirdtime,decide the error.The error condition is displayed as “X“ on the display.1-4-3 Error display If both mechanism (CD/DECK) error occur, the display isindicated as follows. CXERRSetTypeBANDRecevingFrequencyRangeChan

23、nelSpaceIFRFFM87.5MHz108.0MHz100kHz+10.7MHz25kHzK,PK1AM530kHz1700kHz10kHz+450kHz10kHzFM87.5MHz108.0MHz100kHz+10.7MHz25kHzM,YK2AM530kHz1610kHz10kHz+450kHz10kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzM,Y,XE1AM531kHz1602kHz9kHz+450kHz9kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzE,E2E1RDSAM531kHz1602kHz9kHz+450kHz

24、9kHzFM87.5MHz108.0MHz50kHz+10.7MHz25kHzMW531kHz1602kHz9kHz+450kHz9kHzTE2RDSLW153kHz729kHz9kHz+450kHz9kHz2. Destination List of TunerRXD-803/803E/853/853E/A836CIRCUIT DESCRIPTIONAUX MODEAUX key+AC-ONTUNER MODETUNER(BAND) key+AC-ONTAPE MODETAPE A() key+AC-ONCD MODEDISC3 key+AC-ONMENU key+AC-ONSUB CLOC

25、K 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, the system enters the test mode.If the diagnosis result is NG, the oscillation of the sub clock is diagnosed again

26、. 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 Test Mode3-2 Cancel of the test modeBy turning the power off, the system is initialized and the test mode is cancel

27、ed.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 MANUAL MONOBACKTUNING DOWNSOUND CONTROLNormal indicationTUNING UPTUNING MODEP. ch DOWNENTERNormal indicationP. ch UP

28、DISPLAY/DEMOFL indication ONFL indication OFF50HzCD OPEN/CLOSE50Hz/50100Hz/75100HzKEYDISPLAYOPERATIONToneMAXMAX MIN CENTER DISC 1ToneMINToneCENTEDISC 2Normal indicationAUX LEVEL MAX AUX LEVEL MINDISC 3Normal indicationLch MAX Rch MAX CENTER EX.BASSNormal indicationEX. BASS ON EX. BASS OFFKEYDISPLAYO

29、PERATION* 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 key is pressed, during the 4 seconds REC operation, the system records fur-ther for 4 seconds, then returns to the

30、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 SW“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

31、SW“Moon“ (Segment) B PLAY SWSun(Segment)CIRCUIT DESCRIPTIONKEYDISPLAYOPERATIONCD-PLAY/PAUSE05 :*Tracking-servo on.(Change the mode03 :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 va

32、lue09TO 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.(Press it more than 400msec.)The pickup travels outward.REVERSE MODEEx. 0201CD track no. down.REVERSE MODECD FB search.(Press it more than 400msec.)The pick

33、up travels inward.3-3-4 CD Test ModeX28,IC1DECK SYSTEM IC(CXA1498S)CD MECHA(CDM-35)6X14,IC133550X14,ED1X13,IC11M30622MC-A70FP2Vaccume FluorescentDisplay(HNA-15MM18T)X32,IC12TUNER PACKDSP IC(MN662748RPMFA)X13,IC12RDS IC (E, T, Q)(BU1923F)DECK MECHA(CMAT2Z)SYSREM IC(M62498FP)PLL IC(LC72131)DOT DRIVER(

34、LC75711NED)4. Microprocessor : M30622MC-A70FP(X13,IC4)4-1 Microprocessor periphery block diagramRXD-803/803E/853/853E/A837CIRCUIT DESCRIPTIONInput VoltageKEY1KEY2KEY3(V)Pin97Pin95Pin940.000.26POWEREX. BASSREV. MODE0.270.81DISPLAY/DEMOKEY OFFREC0.821.37TUNING MODECD PLAY/ PAUSETAPE EQ.1.381.94MENUBAN

35、DOPEN/CLOSE1.952.51SOUNDTAPE BDISC SKIP2.523.07BACKTAPE ADISC 33.083.62SELECTAUXDISC 23.634.16ENTERSTOPDISC 14.174.734.735.00KEY OFFKEY OFFKEY OFF4-2 Key MatrixPin No.Pin NameI/ODescriptionACTIVEHL1SLEVELIRDS signal level input.2CE2IBackup detection input 2.AC ONAC OFF3SDISD detection input.4STISter

36、eo detection input.5PLL CEOPLL IC & E. volume chip enable.6RDS DATAIRDS data input.7PLL CLKOPLL IC & E. volume 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.15

37、X INIMain clock input(10MHz).16VCC(BU)-u-com power supply(+5.0V).17NMI-Connected to VCC.18REMISignal input of remote control.19RDS CLKIRDS clock input.20BLKCKISub code synchronous signal input. LH Interrupt21CEIBack up detection input.AC ONAC OFF22BEEP SOUNDOBeep sound output.23PLL DOIPLL IC data in

38、put.24CS RELAYORelay control port for center and surround speakers.ONOFF25D XRESETODSP reset port.RESET26DXLAT ODSP latch output.27AMUTEOControl port of audio muting.28MCLKOCD DSP command clock signal output.29STATICD DSP status signal input.30MDATAOCD DSP command data output.31FL DATAOData output t

39、o VFD dot driver.32HPDETIDetection port of headphones.NORMALH/P IN33FL CLKOClock output to VFD dot driver.34FL CEOChip enable output toVFD dot driver.35D DATAODSP data output.36D READYIDSP ready signal input.37D.SCKODSP clock output port.38SOLBOBdeck solenoid control.ONOFF39CPMOCapstan control port

40、for deck.ONOFF40SOLAOAdeck solenoid control.ONOFF4-3 Pin Description of MicroprocessorRXD-803/803E/853/853E/A8389RXD-803/803E/853/853E/A83CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescriptionACTIVEHL41EX CLK15OClock output to expander IC(X13,IC15).42PS LOADOControl port of shift/load for expander IC(X13,

41、IC15).SHIFTLOAD43PS INOData input from expander IC(X13,IC15).44EX CLK16OClock output to expander IC(X13,IC16).45EX DATAOData output to expander IC(X13,IC16).46ATTO-10dB attenunation output.OFFON47FL RSTOReset signal output to VFD dot driver.RESET48LED PROOLED output for prologic.OFFON49LED 3STOLED o

42、utput for 3 stereo.OFFON50LED VIROLED output for virtual.OFFON51M CONT BIMulti control jog input .52M CONT AIMulti control jog input .53VOL BIVolume encoder input .54VOL AIVolume encoder input .55LED STBYOControl port of standby LED.OFFON56LED TIMEROControl port of timer LED.OFFON57NC-Unused.58OPEN

43、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 motor control output.64VSS-GND.65CLOSE OCD motor control output.66

44、BRKMOCD 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. ON71SLT SWICD start limit switch input.72MLDOCD DSP command load sign

45、al 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 mechanism.79TU ON/OFFOTuner power on/off output.80REC/PLAYODeck record

46、ing/playback control.RECORDINGPLAYBACK81BIASODeck bias control.OFFON82POWEROPower relay control. 83RELAYOControl port of speaker relay.84EV CLKOClock output to E.volume.85EV DATAOData output to E.volume data output.86EMPHASISOTuner emphasis output.87EPROM DATAI/OExpander ROM data input/output.88EPRO

47、M 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(key3,key2).96AVSS-GND.97KEY1IA/D key input(key1).98VREF-A/D reference voltage input.99AVCC(BU)-u-com power supply(+5.0V).100PLL DATAOPLL IC & E.volume data output.RXD-803/803E/853/853E/A83CIRCUIT DESCRIPTION10Pin No.Pin NameI/ODescription1SIINO USED2A-PLAYIADECK Head Position Detection Switch Input H = OFFL= ON3B-PACKIB DECK Cassette Tape Detection Sw