Kenwood-RXD-452-Service-Manual电路原理图.pdf

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1、Panel (CD)(A29-1046-02)Knob(K29-7544-04)Knob (K29-7543-04)Front glass(B10-)Front glass(B10-3449-02)Front glass(B10-3471-03)Knob(K29-7541-02)Knob(K29-7541-02) Knob(K29-7545-04)Panel *(A60-) Front glass(B10-3448-02)Cassette lid (R)(A53-2122-02)Cassette lid (L)(A53-2121-02) Phone jack(E11-0280-05)Knob(

2、K29-7553-01)MINI HiFi COMPONENT SYSTEMRXD-402/402E/402W/452/452E/452W/502/502E/RXD-502W/552/552E/552W/572S/A41/A51(XD-402A51) * SERVICE MANUAL1999-1/B51-5500-00 (K/K)3590Illustration is RXD-402.* Refer to parts list on page 48.In compliance with Federal Regulations, following are reproduc-tions of l

3、abels on, or inside the product relating to laser productsafety.*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 DI

4、RECT EXPOSURE TO BEAMRXD-402(E) INT1P 99.6.9 7:25 PM yW2SYSTEMMAIN UNITSPEAKERDESTINATIONSYSTEMMAIN UNITSPEAKERDESTINATIONXD-402RXD-402LS-N402KPETXD-502RXD-502LS-N502KPEXD-402ERXD-402ELS-N402E1XD-502ERXD-502ELS-N502E1XD-402WRXD-402WLS-N402QXD-502WRXD-502WLS-N502QXD-452RXD-452LS-N452MXYTEXD-552RXD-55

5、2LS-N552MXYTEXD-452ERXD-452ELS-N452E1XD-552ERXD-552ELS-N552E1XD-452WRXD-452WLS-N452QXD-552WRXD-552WLS-N552QXD-572SRXD-572SLS-N552M1XD-A41RXD-A41LS-N452KPXD-A51RXD-A51LS-N552KPVOLUMECDTAPEMUTERC-552REMOTE CONTROL UNITEX.BASSTIMEINPUTBANDPOWERTAPEA/BRANDOM REPEAT TEXT DISP.TUNING61 2 34 5 67 8 90 +103

6、2 147MU LT I C O N T R OLDISC SKIPSOUNDCONTROLMENUBACKSELECTENTERVOLUMECDTAPEMUTEMENURC-552EREMOTE CONTROL UNITEX.BASSTIMEINPUTBANDPTYTA/NEWS RDS DISP. POWERBACKTAPEA/BRANDOM REPEAT TEXT DISP.TUNING6SETENTER1 2 34 5 67 8 90 +1032 147MU LT I C O N T R OLDISC SKIPSOUNDCONTROLFM indoor antenna(1)AM loo

7、p antenna(1)Speaker cords (2)Remote control (A70-1262-05): TEQE1.RC-552E(A70-1253-05): KPMXYM1.RC-552unit(1)Remote control unit(1)Use to adapt the plug on the power cord tothe shape of the wall outlet.(Accessory only for regions where use isnecesary.)AC plug adaptor (1)Provided in the speaker packag

8、e Batteries (T90-0836-05)(T90-0837-05)(E30-5535-05)(E03-0115-05)(R6/AA)(2)RXD-402/452/502/552/572S/A41/A512CONTENTS / ACCESSORIES / CAUTIONSCONTENTS/ACCESSORIES/CAUTIONS.2EXTERNAL VIEW/DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM.4CIRCUIT DESCRIPTION.5ADJUSTMENT.10WIRING DIAGRAM.14PC BOARD.15SCHEMATIC DIAG

9、RAM.23EXPLODED VIEW.44PARTS LIST.48SPECIFICATIONS.59ContentsAccessoriesSystem configurationUnplug the power cord from the power outletthen, while holding the ENTER key depressed,plug the power cord again.Please note that resetting the microcomputer clearsthe contents stored in and returns and to con

10、ditionwhen it left the factory.Operation to resetThe microcomputer may fall into malfunction (impos-sibility to operate, erroneous display, etc.) when thepower cord is unplugged while power is ON or due toan external factor. In this case, execute the followingprocedure to reset the microcomputer and

11、 return it tonormal condition.ENTER(Main unit only)CautionsRXD-402(E) INT1P 99.6.9 7:25 PM yW3RXD-402/452/502/552/572S/A41/A513EXTERNAL VIEW / DISASSEMBLY FOR REPAIREXTERNAL VIEWDISASSEMBLY FOR REPAIRBOTTOM SIDEFRONTHOW to open the tray if not comes out.(1) Turn the friction arm counterclockwiseusin

12、g a screw driver and the like. (2) Pull out the tray front wards by hand when the tray comes just out.Cover(F07-1655-02)Slide switch(S62-0077-05)Lock terminal board(E70-0053-05)Lock terminal board(E70-0053-05)Metallic cabinet(A01-3681-01)Phono jack(E63-0116-05)Lock terminal board(E20-0321-05)Phono j

13、ack(E63-1037-05)Oscillating module(W02-1114-05)Illustration is RXD-402.RXD-402(E) INT1P 99.6.9 7:25 PM yW6A PBB R/PB ERASEBIASOSC CTRLBIASVR5HA12219NTIC1HA12136AIC2MPXDPSSIC4HD74HC166PFL DISPLAYED1M66004SPIC51DRIVERREMOCONA1D52TIMERD51STANDBYKEYMATRIXENHANCED ICFOR LEDIC52,53JOG A JOG B VOL.BU2090+1

14、2VAVRQ4AVRQ6,7-12V-12V+12VAVRIC2+5VAVRIC1+9VRDSCD +9V-BGND+B+40VAVRQ8(X14- ) +5VFL -35VQ2+5.6V AVRu-COMFAST OFFFL ACAMPforPOWERAC INRF AMPCXA1571MIC5E-VOLTUNERDECKTUNERE-VOLFL IC +5Vu-COMPULL UPDRIVERTRACKING COIL4ch BTL DRIVERBA5979SDRIVERFOCUS COILDRIVERFEED MOTORDRIVERDISC MOTORIC6ABCEFSWLDQ501DS

15、P.SERVO.CXD2587QIC7DACCD +5VCD +9V(DSP,RF)Q505FMDMTA8409S(ROTARY TRAY)TA8409S(LOADING)LMRMIC8IC9M30622MA-173FPu-COM ICIC1IC2K1120V 240VINPUT OUTPUTMD/DVD MD REC J1SURROUND 3BAND TONEEX-BASSM62492FPSELECTOR,SURROUND,TON,E-VOLRDSDEMODULATORIC3 (T,E,Q TYPE ONLY)SAA6579T/RMODULETUNERANT.PHONESHEADPOLARU

16、NIT-10dBATTAMUTES1OFFONON/OFFMATRIXK1RELAYSPEAKERch.OTHEROUTSWLchRchSPEAKERMATRIXSPEAKERBCLASSACLASSQ1,2Q3,4BAREQ EQBIAS TRAPPH A,BMOTOR AMOTOR BMOTORSOL A,BSPEEDTAPEA/BMOTORSOL A,BVR7,8LEVELB PBLEVELVR1,2A PBPH A,BB.CANCELBIASNORA-N/CA/BB1/2DOLBYR/PDPSSA,B CrCO2L RECR RECA,B PACKA,B PLAYPSINCLKPSLO

17、ADGRIDSEG1635CLKCSDATAKEY3KEY2KEY1DATA1/2CLK15LEDA JOG1/2 1/2B JOG1/2ENC+RF.FE.TE16.93MHZLOM+/-ROM+/-PHTRTD/TUCL/OPPSWMAIN10MHzSUB32.768kHzDATACLK MPXTAPE RECCLKLATchDATAMECHA.DECK(X28- )(X14- )(X00- )(X14- )(X04- )(X13- )MGC-E9001CD MECHA.Q TYPE ONLY2-710-22X07-3030-21ONLYM TYPE ONLYRXD-402/502(X07

18、- )RXD-402/452/502/552/572S/A41/A514BLOCK DIAGRAMRXD-402(E) INT1P 99.6.9 7:25 PM yW7RXD-402/452/502/552/572S/A41/A515CIRCUIT DESCRIPTION1. Initialization1-1 Setting of initial conditionsWhile pressing the ENTER key, put the plug into an ACpower outlet.1-2 Initializing operationAmicrocomputer is init

19、ialized for start when the ACpower is turned on when pressing the ENTER key. Atthat time, CD mechanism and CASSETTE mechanismare also initialized.During the initial operation,the display shows INITIALIZEand after that it will be returned to STANDBY condition.1-3 Initial items and back up data*BACKED

20、 UP DATA1-4 Mechanism initialization1-4-1 CD mechanismDisc unclamps(traverse down).Rotary tray rotates(1/3 rotation).If a mechanism error occurs, CD ERR is indicated on thedisplay.1-4-2 DECK mechanismWhen initial condition becomes NG for the third time,decide the error. The error condition is displa

21、yed as XERR on the display.1-4-3 Error displayIf both mechanism (CD/DECK) error occur, the display isindicated as follows. CD & X ERR 2. Destination list of TUNERITEMS*POWERSTANDBY*VOLUME14*BALANCECENTERMUTINGOFFPROTECTIONOFFAMPS. DIRECTOFFDISPLAY MODEAUTO*AUTO POWER SAVEOFF*MD/DVD INPUT LEVEL-3*INP

22、UT SEL.TUNER*BANDFMTUNER*FREQUENCYLOWEST FREQUENCY*AUTO/MONOAUTO*P.CH-CH*CLOCK0:00 (E/T/Q) 12:00 (OTHERS)CLOCK*PROG. RECORDINGON/OFF TIME0:00 (E/T/Q) 12:00 (OTHERS)*PROG. TIMER PLAYON/OFF TIME 0:00 (E/T/Q)12:00 (OTHERS)SLEEP TIMEROFFO.T.T.OFF*DIRECTIONFORWARDDECK*RVS MODEREVERSE*A/BBKEYSELECTORFL IN

23、DICATIONMODE All the fluorescent display indicatorsand LEDs light on.BANDTUNER STANDBY and TIMER LEDs blink up.+ AC ON The all illminated state is cleared bypressing any main unit keys or remocon keys.INPUTAUX AUX TEST+ AC ONDestinat-ionTunertypeBANDReceivingfrequencyrangeChannelspaceIFRFK,PK1FM87.5

24、MHz108.0MHz100kHz+10.7MHz25kHzAM530kHz1700kHz10kHz+450kHz10kHzM,V,X,YK2FM87.5MHz108.0MHz100kHz+10.7MHz25kHAM530kHz1610kHz10kHz+450kHz10kHzMK3FM87.5MHz108.0MHz100kHz+10.7MHz25kHzMW530kHz1610kHz10kHz+450kHz10kHzSW5.9MHz17.9MHz5kHz+450kHz5kHzM,V,X,YE1FM87.5MHz108.0MHz50kHz+10.7MHz25kHzAM531kHz1602kHz9k

25、Hz+450kHz9kHzME3FM87.5MHz108.0MHz50kHz+10.7MHz25kHzMW531kHz1602kHz9kHz+450kHz9kHzSW5.9MHz17.9MHz5kHz+450kHz5kHzEE1FM87.5MHz108.0MHz50kHz+10.7MHz25kHzRDSAM531kHz1602kHz9kHz+450kHz9kHzTE2FM87.5MHz108.0MHz50kHz+10.7MHz25kHzRDSMW531kHz1602kHz9kHz+450kHz9kHzLW153kHz279kHz9kHz+450kHz9kHzQQFML65.0MHz74.0MH

26、z10kHz+10.7MHz5kHzFMH87.5MHz108.0MHz50kHz+10.7MHz5kHzMW531kHz1602kHz9kHz+450kHz9kHzLW153kHz279kHz9kHz+450kHz9kHzAVdd10R107kX13IC191pin(TYPE)Destina-R107VoltagetionVK91k4.51M139k3.98M222k3.44T13k2.83E8.2k2.25Q4.7k1.602-1 Discrimination of TUNER destination3. Test mode3-1 Test mode of the receiver3-1-

27、1 Setting of the test modeWhile pressing the INPUT key or BAND key, put theplug into an AC power outlet.3-1-2 Canceling of the test modeUnplug an AC power cord from an AC power outlet.3-1-3 Condition in test modePower ONEX.BASS OFFS.W OFFSelector mode or FL indicationRXD-402(E) INT1P 99.6.9 7:25 PM

28、yW10RXD-402/452/502/552/572S/A41/A516CIRCUIT DESCRIPTION3-1-4 Basic operation in test mode(1) The muting during mode selection is not controlled inthe test mode.(2) The test mode is cancelled when the AC power isturned off.(3) The operation of the keys in the test mode as follows.3-1-5 The operation

29、 of the keys in the test mode(1) DISPLAY /DEMO keyWhen this key is pressed in the test mode, all the flu-orescent display indicators and leds light off and nor-mal display are indicated cyclically.(2) REV.MODE,DOLBY NR,A/B,REC/ARM keysThe volume level settings can be made as follows.REV.MODE volume

30、min+1stepDOLBY volume 14 *RXD-402(TAPE E.Q.)A/B volume20REC/ARM volume max (50)(3) DISC SKIP keyWith the selector on TUNER, the S level indicationchanges cyclically as follows by pressing the DISCSKIP key.1ATT is switched off. “ATT off & TUNER S levelXX“2ATT is switched on. “ATT on & TUNER S levelXX

31、“3ATT is switched off. Normal display.XX means A/D value(HEX) of S.(4) DECK STOP keyWith the selector on TUNER, when the DECK STOPkey operated, the preset memory can be changed as10 steps.(5) FWD PLAY/RVS keyWith the selector on TUNER, the P. CALL is operatedby pressing the FWD PLAY and RVS PLAY key

32、s.FWD PLAY key P. CALL upRVS PLAY key P. CALL down(6) CD OPEN /CLOSE keyWith the selector on TUNER, the channel space set-tings can be made cyclically by pressing the CDOPEN/CLOSE key with M version.(7) DECK STOP keyWith the selector on AUX, when the DECK STOP key operated,the S. direct (ON/OFF) can

33、 be changed.(8) DISC 1 keyWith the selector on something other than TUNER,whenever the DISC1 key is pressed, the setting ofE.Q changes cyclically as follows.(9) DISC 2 keyWith the selector on AUX, MD/DVD input level can bemade cyclically by pressing the DISC 2 key .INITIALIZED VALUE LEVEL MAX(10) DI

34、SC 3 keyWith the selector on AUX, the balance level settingcan be made cyclically by pressing the DISC 3 key .(11) DISC SKIP keyWith the selector on something other than TUNER,the muting (ON/OFF) can be changed.3-2 Test mode of cassette deck3-2-1 Setting of the test modeWhile pressing the deck play

35、key, put the plug into anAC power outlet.3-2-2 Canceling of the test modeUnplug an AC power cord from an AC power outlet.3-2-3 Condition in test mode(1) Initial condition DOLBY-0FF AUDIO-MUTE OFF(2) Mechanism SW detection(3) 4-sec recordingIf the REC key is pressed, the system record for 4sec. Then,

36、 it rewinds to the recording starting positionand plays back automatically.If the REC key is pressed, during the 4-sec recordingoperation, the system records further for 4-sec, thenreturn to the starting position of the first 4-sec record-ing operation and plays back.3-3 Test mode of CD player3-3-1

37、Setting of the test modeWhile the pressing the PLAY/PAUSE key, put the pluginto an AC power outlet.3-3-2 Canceling the test modePress the stop key on stop mode or unplug the AC cordfrom an AC power outlet.3-3-3 The operation of the keys in the test mode.DISPLAYA pack SWE.QA -CRO2PROG.12B-FWDO.T.TB p

38、ack SWAUTOB-CRO2STB-RVSANTENNA10 20 30 40 00( )E.Q MAX E.Q MIN E.Q FLATLch MAX Rch MAX CENTERKEYDISPLAYOPERATIONPLAY/PAUSE+AC INCD TEST Setting of the test mode. Tray 1/3 rotation. Tray opens automatically.STOP0 Tray closes. Change or cancel the test mode.PLAY/PAUSE03 -:-05*:* Tray closes/disc clamp

39、s. T-servo off(03) or on (05).DOWNFINISH Tray 1/3 rotation.DISC307 EF/FB08 TG/FG09 TE/RF10 TE/VC Mechanism stops when theautomatic adjustment is finished. Display changes cyclically. If NG, display blinks up.DISC2216*:* Tray closes. Disc2 clamps. Plays track 16.DISC1 Tray closes/disc clamps. Plays t

40、rack 32.RXD-402(E) INT1P 99.6.9 7:25 PM yW11RXD-402/452/502/552/572S/A41/A517CIRCUIT DESCRIPTION4. Main microprocessor4-1 Microprocessor periphery block diagram4-2 Key matrixSERIESEXPANDERX14, IC51X14, IC52, 53X04, IC7X04, IC3TUNER PACK IC2X28, IC4 X04, IC2X28, IC1X13, IC1RXD-402(E) INT1P 99.6.9 7:2

41、5 PM yW14RXD-402/452/502/552/572S/A41/A518CIRCUIT DESCRIPTIONPin No.NameI/ODescriptionActive1S.LEVELIRDS S level input.2PLL DOIPLL IC data input.3SDISD detector input.4STIStereo detector input.5PLL CEOPLL IC chip enable.6RDS DATAIRDS data input.7PLL CLKOPLL IC clock output.8BYTEIGround.9CNVSS-Ground

42、.10XCINITimer clock input(32.768kHz).11XCOUTOTimer clock output(32.768kHz).12RSTIu-com reset signal input.H : normalL : reset13XOUTOMain clock output(10MHz).14VSS-Ground.15XINIMain clock input(10MHz).16VCC(BU)-No used (+5v).17HMI-u-com power supply(+5v).18REMIRemocon signal input.H : normalL : reset

43、19RDS CLKIRDS clock input.20SCORISub code synchronism signal input.21NC-No connection.22CLSWICD load switch (SW3) input port of CD mechanism.23OPEN SWICD unload switch (SW3) input port of CD mechanism.24RTLORotary motor opposite direction (CCW) output.25BRKMORotary motor brake control.H : normalL br

44、ake26CLOSEOLoad motor opposite direction (taking out) output.27OPENOLoad motor positive direction (dragging out) output.28SQCKOCD sub code clock output.29SQSOICD sub code input.30NC-No connection.31FL DATAOFL driver data output.32CEIPower failure signal input.H : AC onL : AC off33FLCLKOFL driver clo

45、ck output.34FLCSOFL driver strobe output.35RTRORotary motor positive direction (CW) output.36TDSWITraverse down switch (SW1) input port of CD mechanism.H : off L : on37TUSWITraverse up switch (SW1) input port of CD mechanism.H : offL : on38PHTRICD photo transistor (Q1) detector input.39PSSWITray pos

46、ition & disc detector switch (SW2) input port ofCD mechanism.40XRSTOCD DSP IC reset control.41CD MUTE-No connection.42DC OFFOCD DSP IC power control.H : onL : off43MONOSpindle motor (ON/0FF) changeover.H : onL : off44LDCOLaser ON/OFF signal output.H : offL : on45SCLKOCD sense data read out clock out

47、put.46SENSICD sense input.47CLOKOCD DSP IC clock.48XLATOCD DSP IC latch.49DATAOData output to DSP IC.50EVCLKOClock output to E. vol(IC2).51EVLATOLatch output to E. vol(IC2).52EVDATAOData output to E. vol(IC2).53A-JOG1IJog A (S28) input.4-3 Pin description of microprocessor: M30622MA-173FP (X13, IC1)RXD-402(E) INT1P 99.6.9 7:25 PM yW15RXD-402/452/502/552/572S/A41/A519CIRCUIT DESCRIPTIONPin No.Name