Kenwood-XDV323-cs-sm 维修电路原理图.pdf

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1、MINI HiFi COMPONENT SYSTEMRXD-V323/LS-N323SERVICE MANUAL(XD-V323) 1999-7/B51-5557-00 (K/K) 35270%In compliance with Federal Regulations, following are repro-ductions of labels on, or inside the product relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations

2、 No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlockdefeated.AVOID DIRECT EXPOSURE TO BEAMRefer to RXD-251 service manual (B51-5454-00),if require to know the mechanism operationdescription in detail.DISC SKIPDISC 3DISC 2DISC 1INPUTBANDPHONESEX.BASSTUNING MO

3、DEMULTI CONTROLMENUSELECTDISPLAYENTERDEMOON/STANDBYTAPE A/BREC/ARMVOLUMEA PLAYREC/PLAYBOPEN/CLOSE button(K29-7646-08)Front window(A29-1083-08)POWER button(K29-7715-08)Knob (JOG)(K29-7658-08)MIC volume knob(K29-7713-08)MIC jack(E11-0387-08)STOP button(K29-7654-08)Cassette window L(B10-3527-08)CD door

4、(A60-1751-08)Knob (VOLUME)(KK29-7652-08)Headphone jack(E11-0943-08)TUNING button assy(K29-7643-08)Control plate(A22-1831-08)PLAY button(K29-7656-08)Cassette window R(B10-3528-08)Cassette door R(A53-2159-08)Front panel(A60-1722-18)DISC button base assy(K29-7641-08)PLAY/PAUSE button(K29-7648-08)EX.BAS

5、S button assy(K29-7642-08)Cassette door L(A53-2158-08)RadioFans.CN 收音机爱 好者资料库RXD-V3232CONTENTS / ACCESSORIES / CAUTIONSFM indoor antenna (1)AM(T90-0815-08)loop antenna (1)AC(E03-0115-05) plug adaptor (1)Remote(A70-1321-08) : RC-V323 control unit (1)Batteries (R6/AA) (2)Use to adapt the plug on the p

6、ower cordto the shape of the wall outlet.(Accessory only for regions where use isnecessary.)(T90-0847-08)Operation to resetThe microcomputer may fall into malfunction (impossibility to oper-ate, erroneous display, etc.) when the power cord is unpluggedwhile power is ON or due to an external factor.

7、In this case, executethe following procedure to reset the microcomputer and return it tonormal condition.Press the POWER key while holding the Stop (7) key ofthe CD section pressed, to switch off the power, and thenswitch the power on again after a few seconds. Please note that resetting the microco

8、mputer clears the contentsstored in and returns and to condition when it left the factory.CONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3BLOCK DIAGRAM .4CIRCUIT DESCRIPTION.5ADJUSTMENT.8PC BOARD .11SCHEMATIC DIAGRAM .17EXPLODED VIEW .31PARTS LIST.33SPECIFICATIONS .Back coverContentsAccessoriesCau

9、tionsSystem configurationSYSTEMMAIN UNITSPEAKERXD-V323RXD-V323LS-N323 Reference number for LS-N323, refer toparts list on page 33.RadioFans.CN 收音机爱 好者资料库RXD-V3233EXTERNAL VIEW+SPEAKERS(616 )FM 75 AMANTENNAGNDAC 220240VAC 110120VRAUXINPUTAUXOUTPUTVIDEO OUTPUTLLLRRAntenna terminal(4p)(E70-0070-08)Slid

10、e switch (S62-0083-08)Phono jack(E63-1076-08)1P RCA jack(E63-1075-08)Lock terminal board(E70-0108-08)RXD-V3234BLOCK DIAGRAMA/BPLAYAMPALCP/BR/POSCBIASQ211/L201Q205Q203, Q204,Q206Q201Q202TAPE OUTRECPRE-AMPIC403RL501Q407,408MUTESYSTEMPOWER AMPIC501+VCC-VCCQ501-503DETECTOR+12V512Q511,MUTEJACKSPEAKERHEAD

11、PHONESQ703+7.5VQ701Q704+VCCtoXFORMER-12V+12V-VPCN701D702D701Q706IC801IC601CPUKEYMATRIXMIXBUFFAMPTUNEAM ANTGNDFM ANTAMPAM RFTUNEOSCANTRFIFTPLLL.P.FQ107,108AMPRFIC103u-COMAMPQ105CF1IFFILTERAM SECTIONAMFM SECTIONCF2OUTRCIC102TUNEFM RFFMOSCQ102GNDIC01 LA9241MRF SIGNAL PROCESSING/SERVO AMPCOMPACT DISC PL

12、AYERDIGITAL SIGNALCD POWER DRIVERIC04 BA5936SMPEG u-COMIC03 LC867240AIC02 LC78630EXTL0116.9344MHzNJM4558LOP AMPMMOTORDISCMOTORFEEDMTRAY MOTORT/T MOTORSWLIMIT INOUTPUTAUDIOCONTROL SWS01-04RchLchu-COMANALOG SIGNAL PROCESSOR(ASP)DSPtoTAPEAUXCDAMPIC402D/ACLKCONTROLSRAMA/DLPFLPFBUFFMIXAMPMICMIC VRECHO VR

13、SWLOGICIC301Q301Q302from CD-DSP PCBLC867240AIC07OSDLC74772V2SA1175EVIDEO BUFFERQ18,19Q202SC2785EFILTER2SA1175EQ22VIDEO O/PIC05CPU I/FCD-ROMDECODERSYSTEMDECODERMPEG AUDIODECODERDECODERMPEG VIDEODRAM ARBITERMPEG DECODERLC74202EIC08CPUPLL+VCO54MHzIC02(from CD DSPLC78630E)4MBIT DRAMIC10LC32V4265TfromMPE

14、GCN404VIDEO OUTJK402MICIC401Q404Q403,MUTEOUTAUXR/P SWITCHINGAMPRECTUNERVOLUMETREBLEMIDDLEBASSSPKR ATTSUPPLYL/RI CBUS DECODER + LATCHESJK502JK501Q504RECO/PSWITCHBUFFERRECBUFFERRECRchLchQ218Q217ERASECONTROLLERFLD DISPLAYFLD DRIVERBLOCKCD/VCDVOL/EQECHOTUNER PLLCASSLOGIC DECKDRIVERLOGIC DECKCONTROLR/PVF

15、VF-VCC-2VCCCD/VCD BLOCKto CPUVDD +5.6V+12V/MOTORSPK PROTECT INTOPROTECTFROMCURCUITTDA74390/30db2db stopLEVEL DET.METERVOLUMETAPE OUTA/BIC201FM RF IC101TUNER UNITCD MECHA. UNITRXD-V323IC302IC303MPEG UNITVOCAL FADERPCB ASSY24232019161412591113+FOCUSTRACKING816,91CBA3,13PTSMPEG AUDIOSTART TRIGGER16.934

16、4MHzCD DSP CLOCKTRACK 1INFORMATIONVB OOT17.734475MHzPAL/14.31818MHzNTSC/MPEG VIDEOPTSMPEG BITSTREAM+100K25262716152224192818172021222435291302 4891011121314100K100K100KAGNDVaOUTDIG-GNDSDASCLCREF6VREFGRXD-V3235CIRCUIT DESCRIPTION1. Reception Bands3. Microprocessor : (IC601,LC867248A)3-1. Pin descript

17、ion2. TUNER preset frequencyBandTuning RangeStepRFIFFM87.50108.00MHz50kHz25kHz+10.7MHzAM5311602kHz9kHz9kHz+450kHzM.chFrequency1FM87.5MHz2FM90.0MHz3FM98.0MHz4FM106.0MHz5FM108.0MHz6AM531kHz7AM603kHz8AM999kHz9AM1404kHz10AM1602kHz11FM87.5MHz12FM87.5MHz13FM87.5MHz14FM87.5MHz15FM87.5MHzM.chFrequency16FM87

18、.5MHz17FM87.5MHz18FM87.5MHz19FM87.5MHz20FM87.5MHz21FM87.5MHz22FM87.5MHz23FM87.5MHz24FM87.5MHz25FM87.5MHz26FM87.5MHz27FM87.5MHz28FM87.5MHz29FM87.5MHz30FM87.5MHzActivePin. No.NameI/ODescriptionHL1CEOCE output to LC72131D(TUNER,IC103).2RESET-OUTILC867240A(CD,IC03) reset out.O3DOIData input from LC72131

19、D(TUNER,IC103).4DIOData output to LC72131D(TUNER,IC03).5CLKOClock output to LC72131D and M66004SPA(FRONT,IC801).6DATA-OUTOSub CPU(CD PCB,IC03) interface data output.7DATA-INISub CPU(CD PCB,IC03) interface data input.8CLK-OUTOSub CPU(CD PCB,IC03) interface clock output.9N/C-No used.10STB-OUTOStrobe o

20、utput.11BUSY-INIBusy input.12RESETIReset signal input.O13POWER-DOWNIPower down input.O14GND-Ground.15VSS-Ground.16X1-Xtal 6.0MHz .17X2-Xtal 6.0MHz .18VDD1-Power supply(+5.0V).1921K1K3IKey input(K1K3).22K4-Connected to VCC.23L/MILevel meter.24EX.BASSIExtra bass ON/OFF signal input.25DECK-MODEIDeck mo

21、de switch input.26BAND-SWIBand switch input. 27GND-Ground.28SP PR INISpeaker protection input.OnOff29REMOTE INIRemocon signal input.O30VR+IVolume encoder(VR801) input.31VR-IVolume encoder(VR801) input.32PIC-UPIInput port of up switch for pick up.33PIC-DOWNIInput port of down switch for pick up.34DIS

22、C-COUNTIDisc counter switch input.35TURNTABLE SWITurntable switch input.36TRAY-OPENITray open switch input.37TRAY-CLOSEITray close switch input.RXD-V3236CIRCUIT DESCRIPTIONActivePin. No.NameI/ODescriptionHL38TURNTABLE MOTOR +OTurntable motor(+) control.39TURNTABLE MOTOR -OTurntable motor(-) control.

23、40TRAY MOTOR +OTray motor(+) control.41TRAY MOTOR -OTray motor(-) control.42MOTOR SPEEDOMotor speed control.4345-No used.46AUX-No used.47TAPEOSystem muting control.O48TUNER-No used.49CD-No used.50,51-No used.52LED STANDBYOStandby LED control.O53TIMEROTimer LED control.O54TAPE M/M SW AIInput port of

24、mode switch for A deck mechanism.StopPlay55TAPE M/M SW BIInput port of mode switch for B deck mechanism.StopPlay56VDD-Power supply(+5.0V).57VSS-Ground.58TAPE M/H SW AIHalf switch input of A deck mechanism.59TAPE M/H SW BIHalf switch input of B deck mechanism.60REC.FWD SWIREC forward switch input.61R

25、EC.RVS SWIREC reverse switch input.62REEL PULS AIReel pulse input of A deck.63REEL PULS BIReel pulse input of B deck.64TAPE M.VCC-Power supply for deck mechanism.PlayStop65RECODeck recording control.RecOther66SOL.BOControl port of solenoid for deck B. OnOff67DUBBINGODubbing control.DubbNor68SOL.AOCo

26、ntrol port of solenoid for deck A. OnOff69REC.MUTEOREC mute control.OtherRec70BIASODeck bias control.RecOther71A or BODeck(A or B) control.AB72REC.BEAT CANCELOREC beat cancel.OnOff73TAPE MUTEOMuting control of deck line output.OnOff7478-No used.79SP SW OTOSpeaker relay control.OnOff80REM CODEIGround

27、.81,82-Ground.83JOG ECD AIInput port of jog encoder(A).O84JOG ECD BIInput port of jog encoder(B).O85-Ground.86FM STEREO INIFM stereo signal input.MonoStereo87SDAI/OTDA7439(MAIN PCB,IC104) SDA.88SCLI/OTDA7439(MAIN PCB,IC104) SCL.89VSS2-Ground.90VDD2-Power supply(+5.0V).91POWER-SW-No used.92SYS-MUTEOS

28、ystem muting control.OffOn93TU-MUTEOTuner muting control.OnOff94LINE OUT MUTEOMuting control of line out.OnOff95EX.BASS OUT-No used.96V/CANCEL OUTOVoice cancel out.OffOn97CSOM66004(FL driver) CS.O98RESETOM66004(FL driver) reset.O99,100-No used.7RXD-V323CIRCUIT DESCRIPTION4. MPEG Microprocessor : LC8

29、67240(CD PCB,IC03)4-1. Pin descriptionActivePin.No.NameI/ODescriptionHL1N/P SEL OUT-No used.2RESET OUTOLC74202E(IC08),LC74772V(IC07) reset out.O3DIILC74772V(IC07) SIN.4DOONo used.5CLILC74772V(IC07) clock.6DATA OUTOMain CPU(IC601) interface data out.7DATA INIMain CPU(IC601) interface data in.8SCKIMai

30、n CPU(IC601) interface clock.9STB INIMain CPU(IC601) interface STB in.10BUSY OUTOMain CPU(IC601) interface STB out.11MIRQILC74202E(IC08) IRQ.12RESETIReset input.O13,14VSS-VSS15VSS-VSS16,17CF1/CF2-Xtal 6.0MHz.18VDD-Power supply(+5.0V).1929VSS-VSS30VIDEO LEDOLED(VIDEO CD) control.O31PBC-Playback contr

31、ol.O3237-No used.38VDD CONTROLONo used.3955N/C-No used.56VDD-Power supply(+5.0V).57VSS-VSS5861-No used.62CEOLC74202E(IC08) CE.63CLOLC74202E(IC08) CL.64DOI/OLC74202E(IC08) DO.65-No used.66DII/OLC74202E(IC08) DI.6773-No used.74SL +OSled motor control(+).O75SL -OSled motor control(-).O76SPEED BOSpeed c

32、ontrol terminal to IC01(LA9241).77SPEED AOSpeed control terminal to IC01(LA9241).78AUDIO MUTEOAudio muting control.OnOff79MUTEOBA5936S(IC04) muting control.CDOther80PIC LIMIT SWIInput port of pick up limit switch.O8186-VSS87CLOCommand clock output to LC78630E(IC02) and LA9241(IC01).88DATOCommand out

33、put to LC78630E(IC02) and LA9241(IC01).89VSS-VSS90VDD-Power supply(+5.0V).91SQ OUTISub code Q input from LC78630E(IC02).92RWCOLC78630E(IC02) RWC,LA9241(IC01) CE.93RESOChip reset output to LC78630E(IC02).94DRFIDRF from LA9241(IC01).95,96N/C-No used.97CE-No used.98VOC-No used.99CSOCS to LC74772V(IC07)

34、.100RESET OUT-No used.5. Key matrixPORTSW1SW2SW3SW4SW5SW6SW7 SW8Pin 19(K1)PowerInputEX Bass Display/DemoMenu Select EnterPin 20(K2)BandTuningModeTapeRecA/BPlayStopFFREWPin 21(K3)CD PlayPauseStopDiscSkipDisc 3Disc2 Disc 1 OpenClose?8RXD-V323ADJUSTMENTNO.ITEMINPUT SETTINGOUTPUTSETTINGTUNERSETTINGALIGN

35、MENTPOINTSALIGN FORFIG.1.IF(D)531 kHz 1 kHz,30% MOD 60 dBu (ANT INPUT)(B) 531 kHzT102Maximum output(Minimum distortion) 2.LOW END TRACKING(D)531 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT)(B)531 kHzT103Maximum output3.HIGH END TRACKING(D)1602 kHz 1 kHz, 30% MOD30 dBu (ANT INPUT)(B)1602 kHzTC101Maximum out

36、put4.VTConnect the DC voltage meter to TP1.531 kHzT104VT=1.2V0.05V1602 kHzCheck theVT=7.3V1.0VMW SECTIONFM SECTIONNO.ITEMINPUT SETTINGOUTPUTSETTINGTUNERSETTINGALIGNMENTPOINTSALIGN FORFIG.1AUTO STOPLEVEL(A)98.0 MHz MONO1kHz, 75kHz dev 30dBu (ANT input)AUTO98.0MHzSFR101Adjust SFR101 andstop at the poi

37、ntwhere FLD801( )goes ON.FM 75 AMANTENNAGND(A)(C)(D)AM-SGFM-MPX-SGFM-MPX-SGPOLAR SGDummy antennaINSTRUMENTS CONNECTIONOscilloscopeAC voltmeter(B)Distortion meterTO TUNER UNITCN101, pin 9 (Lch)pin 7 (Rch)pin 8 (GND)?9RXD-V323ADJUSTMENTNO.ITEM INPUTSETTINGSOUTPUTSETTINGSCASSETTE TAPE DECK SETTINGSALIG

38、NMENTPOINTALIGN FORFIG.Unless otherwise specified : each ; switch should be set as follows : 0dBs = 0.775VBEAT SW : OFFI. Cassette mechanism section (REC/PB head adjustment)1Demagnetization and cleaningPower OFF, demagnetization, cleaning playREC/PB head, erase head. capstan, pinch rollerDemagnetize

39、 the REC/PB head by head eraser. Clean the REC/PB head, erasehead capstan and pinch roller with a cotton swab immersed in alcohol.2REC/PB head azimuthMTT-114, TCC-153 SCC-1727 10 kHz, -10dB(A)PLAYAzimuth adjustment screwIn a setting wher the outputis maximized, adjust theazimuth adjustment screw so

40、that the Lissajous figure appearing on the oscilloscope screen comes near to a line slanted45 Note : The head should be installed in such a manner that it approaches the tape face.II. PC board adjustment Tape speedMTT-111TCC-100 SCC-1727 3 kHz, -4 dB(A)PLAYSFR201Adjust so that Frequency is 3 kHz at

41、the center of the tape.OscilloscopeFrequency counterAC voltmeterPIN8PIN13Lch: PIN13Rch: PIN8IC401(A)MAIN UNITINSTRUMENTS CONNECTIONCASSETTE DECK SECTION?RXD-V32310ADJUSTMENTFIG.(a)No.ITEMINPUTSETTINGSOUTPUTSETTINGSALIGNMENTPOINTSALIGNFORPLAYERSETTINGS1LASER POWERApply the sensor sectionof optical po

42、wer meteron the pickup lens.On the power from0.08 to 0.15 mW,when the diffractiongrating is correctlyaligned with the RFlevel of 0.6 Vp-p ormore.Press thePLAY/PAUSE key.PickupNote:Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-08)0.080.15 mWOptical power meter(a) Laser powerCD SECTION?11ACE

43、BD2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)1011133326416213311331111212JOG VR PCBDISC SW PCBFRONT PCBSENSOR PCB?12FGIHJ2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)28

44、101112111112212121324EBDDGSDGSSG187111788916141313EEEEBGIOBBBECHO PCBTUNER PCBMIC JACK PCBMICECHOVRMICVR?KMOQSLNPRT2135746BSEBEBBBBBBBBBBEEEEEEDDGSEEEBBEEB1511RL4EBBBBBBEEEEEEBEBEBEBEBBEEBEBEBEBEBEBEBBEB111110210155EBBBEEEBEEBE1135BEBB12EE16152117EGSDGSDG18181101816100130315011216301511324518081VIDE

45、OPHONESAUXOUTAUXINSPEAKERSH/P PCBMAIN PCBVIDEO PCBAC SELE. PCBLINE FUSE PCBRefer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)1314UVXZABADWYAAAC2135746BBBBBBBBBIGOBB16EEEEE16EEEBBBBBEEEEE11152021182172EEE115142CD DECODER PCBRefer to the schematic di

46、agram for the value of resistors and capacitors.PC BOARD(Component side view)1516ACEGIBDFHJ2135746RXD-V323Y39-3240-23123456789101112FMIFAMMIXREGAMIFGNDTULEDSTINDFMDETVCCIFBUFAM/FMST/MO242322212019181716151413OSC/FMSDOSCAFCAMRFSMETAMOUTFMOUTPLLINMPXINPILOTROUTLOUT2221201918171615141312XOUTVSSAOUTAINP

47、DVDDFMINAMINNCSWB+IFIN1234567891011XINNCCEDICLKDODEMFFMB+FM/AMFMSTSD/IN10.01G0.022C1050.022C10710.7MS6.8KR1041.5KR10510.7MACF102330R1060.01R107100270R11110.7MG46-A3.3KR1121u50C116+0.47u50C117+20PC1180.047C10910u50C110+C1110.022C11447P245631T10212346C119+1u508.2KR110R1233.3K3.3u50C140+0.022C159100u16

48、C113+0.022C112R10910KR108R1363.3KC139 100P+C138 22u166.8KR15139KC132 4700PR120100K0.1C133820PC13610987654321MUTELchGNDRchST IND+12VCEDICLKDO3146TC10110P4.7u50+4.7u50C125+0.022C122 0.022C1245.6KR1163.3KR117C1291500PR1183.3KR15010K0.047C1370.1T1033461T104470PC16247KR1390.1C161C16320P1KR138220P220P220P

49、3451K1K1KC156R132C154R134C155R13310KR1131000PC1531KR1191000PC12134510PC1600.022C1523.3KR124100R125L10647uHC141 0.0220.01C15147u16C150+10KR129R1261KC144100u16+0.022C14310KR127C14527P0.22C1495.6KR1280.01C148220R13020KSFR101CF1031KR1031/2W+B+B21TP1+B7.2MHz27PC146X101+B+B+BLWB+1/4W5.6KR1151500PC12818KR1

50、2110u50C134+21TP2100R1141000PC1201/4WCF104CANCELOUT+B+B+B+B+B+B+B+B+B+B+B+B+B+B22uHL107J104R13110K1/2WC142 100u16+5.6KR149C106100u16+L10322uHL10222uHR1371K4853762J1011000PC102C1030.110KR135+B+B+BL10122uHR10122CF101C1350.01C1300.01C131+BC158100R102C108221/4WR122C123J113J103J138+B(BOTTOM VIEW)FE101D10