Kenwood-RXDV727-cs-sm 维修电路原理图.pdf

MINI HiFi COMPONENT SYSTEMRXD-V525/V626/V727/V828SERVICE MANUAL(XD-V525V828) * 1999-8/B51-5567-00 (K/K) 40670%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 want to know system configuration.Refer to the RXD-652 service manual (B51-5517-00) forDISASSEMBLY FOR REPAIR.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlockdefeated.AVOID DIRECT EXPOSURE TO BEAMPHONESAUTO REVERSEDIRECT PROGRAM SEARCH SYSTEMAPLAYBREC/PLAYAUTO REVERSEDIRECT PROGRAM SEARCH SYSTEMMENUDISCSKIP 0?PUSHOPENMINI HI-FI COMPONENT SYSTEMXD-552PBCKEY CONTECHOEX.BASSSELECTENTERINPUTDISPLAY/DEMOMIC VOLMIN.MAX.MICBACKBANDTUNING MODE1&?#REV. MODEREC/ARMTAPE EQ. 0?PUSHOPENABDISC3DISC 0?OPENVIRTUAL&1DISC2R D SON/STANDBYSOUNDCONTROLMULTICONTROLDOWNDOWNUPVOLUMECONTROLUPSTANDBYTIMERPRO LOGIC 3 STEREOMIC VOL.Knob(K29-7470-14)Front glass *(B10-)Knob(K29-7471-14)Knob(K29-7547-04)Phone jack(E11-0219-05)Phone jack(E11-0280-05)Cassette lid assy(L) *(A53-)Panel assy *(A60-)Knob(K29-7466-04)Cassette lid assy(R) *(A53-)Panel assy(CD)(A29-1067-03)* Refer to parts list on page 55.RadioFans.CN 收音机爱 好者资料库Unplug the power cord from the power outletthen, while holding the ENTER key depressed,plug the power cord again.?Please note that resetting the microcomputer clears thecontents stored in memory and returns it to the conditionwhen 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 return it tonormal condition.ENTERABPOWERECHOKEYKEYVOLUMEDOWNVOLUMEUPMENUSELECT4?MULTI CONTROLREMOTE CONTROL UNITRC-V828TUNING?1CD61SOUND CONT.AUTO PBC23456LISTEN MODEPAL/NTSC7890+10DISC SKIPINPUTEX.BASSBANDTAPE327RETURNA/BTIMERANDOMSTEPSLOWON SCREENMULTIPLEXBACKDIGESTFREEZERESUMEBACKMUTETIME SEARCHPREV.REPEATNEXTENTERFM indoor antenna (1)AM loop antenna (1)Speaker cords (2)(A70-1302-05): RC-V828.RXD-V828(A70-1303-05): RC-V727.RXD-V727(A70-1304-05): RC-V626.RXD-V525/V626Battery cover (A09-0399-08)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)Batteries (T90-0836-05)(T90-0837-05)(E03-0115-05)(R6/AA) (2)Provided in the speaker package Video cord(1)(E30-1427-05)RXD-V525/V626/V727/V8282CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES /CAUTIONS. 2EXTERNAL VIEW.3CIRCUIT DESCRIPTION.4ADJUSTMENT.10WIRING DIAGRAM.12PC BOARD . 13SCHEMATIC DIAGRAM . 24EXPLODED VIEW .51PARTS LIST.55SPECIFICATIONS .67ContentsAccessoriesSYSTEMMAIN UNITDESTINATIONSPEAKERSP CORD PARTS NO.XD-V525RXD-V525MILS-N452E30-5535-05XD-V525RXD-V525VLS-N552E30-5535-05XD-V626RXD-V626MILS-N552E30-5535-05XD-V727RXD-V727MIVLS-N752E30-5535-05E30-5559-05XD-V828RXD-V828MIVLS-N552E30-5535-05CRS-N552E30-5542-05System configurationCautionsRadioFans.CN 收音机爱 好者资料库RXD-V525/V626/V727/V8283EXTERNAL VIEWMetallic cabinet(A01-3656-01)Cover (F07-1660-01)Lock terminal board(E70-0046-05)Lock terminal board(E20-0321-05)Phono jack(E63-1037-05)Oscillating module(W02-1114-15)Phono jack(E63-1010-05)Slide switch(S62-0077-05)Lock terminal board(E70-0110-05)Lock terminal board(E70-0045-05)Phono jack(E63-0116-05)Slide switch(S62-0077-05)Lock terminal board(E70-0053-05)Illustration is RXD-V828.RXD-V525/V626/V727/V8284BLOCK DIAGRAMR/PERASETONEEX.BASSSOUNDOSCBIASBIASTRAPNR SYSTEMDOLBY BHA12136ABA3126NHA12219NT20.5V/6K1OTHER chS.W. PRE-OUTUSEDH.P.RchLchCchRF AMPLODINGMOTORCD DSPKEYLED CONTROLREMOTE SENSOR(X13)A1TUNER PACKFM75 AMANTB DECK(X28)DECKMECHAIC3IC1Q21,22IC2(X14)IC10CXD2718QM62492FPIC2MD RECMD/DVDRXD-V525/V626/V727IC3CD MECHA(MGC-E9001)DIGITALD. OUT(OPTICAL)VIDEO OUTMAIN u-COM2ch MODE (DEV.1%)SURROUND MODERXD-V525RXD-V626RXD-V727(X07)Q3,4Q1,2B CLASSIC2Q5Q7IC5IC1(X14)2V/60017.3V/621.9V/610.95V/6RXD-V82820.5V/624.5V/612.2V/6AMP1.0V/10KOUTPUT400mV/47KINPUT1Vp-p/75PA DECKMICECHOUSEDUSED RXD-V828DRIVERIC4TV ENCODERMPEGDECODERIC12IC9ANALOGRXD-V525/V626/V828MTXMTXSWRchSWLchSLchSRchSLchSRchOFFONMTXSURROUNDOTHER chQ6AMPQ8IC2K1S chAMPA CLASS(X00)AC/DCPROTECTIONL.P.F(X32)(X13)A1IC52,53FLIC51DRIVERDISPLAYFLED1MIC AMPMIC VOL.C/S chPRO-LOGICDOLBYL/R chIC7INPUTOUTPUT12(DEV.10%)(DEV.10%)(DEV.1%)(DEV.1%)FRONT SP.OUTPUTRXD-V525RXD-V6268.5V/8(DEV.1%)8.9V/8(DEV.1%)SP. OUTPUTMATRIX SURROUND (MODE)SUPER WOOFERSP. OUTPUTRXD-V72724.5V/6(DEV.10%/60Hz)13.4V/6RXD-V828CENSER SP. OUTPUT(DEV.10%)9.5V/6RXD-V828(DEV.10%)SURROUND SP. OUTPUT+12VAVRQ4AVRQ6,7-12V-12V+12VAVRIC2+5VAVRIC1+9VRDSCD +9V-BGND+B+40VAVRQ8(X14- ) +5VFL -35VQ2+5.6V AVRu-COMFAST OFFFL ACAMPforPOWERAC INE-VOLTUNERDECKTUNERE-VOLFL IC +5Vu-COMPULL UPK1120V240V+12VAVRQ4AVRQ3-12V-12V+12VAVRIC2+5VAVRIC1+9VRDSCD +9V-BGND+B-35VAVRQ8FL-REFFL -35VQ2+5.6V AVRu-COMFAST OFFFL ACICforPOWERE-VOLTUNERDECKTUNERE-VOLFL IC +5Vu-COMPULL UPK1120V240V(M) TYPE ONLY-BVGND+BVD2D15-18D1D3S2S1AC IND2D1D3EXCEPT USED RXD-V828USED RXD-V828IC13Q305,306MPXX32X32K2K2K2K2USED RXD-V727S1(X00-293X-XX) : RXD-V525/V626(M) TYPE ONLYRXD-V525/V626/V727/V828(X00-294X-XX) : RXD-V727/V828CLKPLL-CLKPLL-CEPLL-DOSDSTPLL-DATAS-LEVELDE-EMPHSW/C/S MUTEH.P. DETECTATTMUTEPROTECTIONLATCHDATACLKREADYREC LEVEL CONTR/PLATCHLch-OUTRch-OUT+12V+12VRECPBAMPAMPOUT(REC=H)INPUT ATT.VOLUMEC/S (RXD-V828)7VDECKCDLch-OUTRch-OUTD. OUTDATAXINXOUTXCINXCOUT(10MHz)(32.768KHz)MAIN CLOCKTIMMER CLOCKMUTE-6db ATT.DOLBYIN-6db ATT.MUTE-6db ATT.MUTEC/S chSW chC/S or SWFRONT L/RVOLUMESW (RXD-V727)C/SL/R+IC1IC55RXD-V525/V626/V727/V8285CIRCUIT DESCRIPTIONSECTIONITEMSPOWERSTANDBYVOLUME14BALANCECENTERMUTINGOFFPROTECTIONOFFS.DIRECTOFFSUPER WOOFER3(RXD-V727)DISPLAY MODEAUTOAMPAUTO POWER SAVEOFFMD/DVD INPUT LEVEL -3INPUT SEL.TUNER(LISTEN MODE)DOLBY PROLOGICOFFDOLBY 3STEREOOFFDOLBY VIRTUALSURROUNDOFFCENTER SP.EXIST(SMALL)SURROUND SP.EXISTDELAY TIME20msecBANDFMTUNERFREQUENCYLOWEST FREQUENCYAUTO/MONOAUTOP. CH -CHInitial items and back up dataSECTIONITEMSCLOCK0:00(E/T/Q)12:00(OTHERS) PROG. RECORDINGON/OFF TIMER0:00(E/T/Q)12:00(OTHERS) CLOCKPROG.TIMER PLAYON/OFF TIMER0:00(E/T/Q)12:00(OTHERS) PROG.EXECUTIONOFFSLEEP TIMEROFFO.T.T.OFFDIRECTIONFORWARDDECKRVS MODEREVERSE(U MODE)A/BBPLAY MODETRACKAUTO/NTSC/PALAUTOAUTO PBCONDIGESTOFFCD/VCDMEMORY STOPOFFREPEATOFFRANDAMOFFACTIVE MODESTOPTIMESINGLE: None back upSETTING METHODWhile pressing DISC3 key, plug the AC power cord into the AC power wall outlet.CANCELPush CD STOP key.CONTENTSDisplay : CD TEST (Then the CD tray open.)Push CD PLAY key to cycle 03 05.SELF ADJUSTMENT(Push DISC 1 key on STOP)ParameterFL DISPLAY07 EF/FB07 * *08 TG/FG08 * *09 FE/RF09 * *SETTING METHODWhile pressing DECK PLAY key, plug the AC power cord into the AC power wall outlet.CANCELPush DECK STOP key.CONTENTSDisplay : DECK TESTMECHA SW ON= DISPLAY LIGHTING.LEAF SWA-PACKA-FWDB-FWDB-PACKB-NOR.B-RVSFL DISPLAYMOONPROG1,2O.T.T.AUTOSTANTENNASETTING METHODWhile pressing MENU key, plug the AC power cord into the AC power wall outlet.CANCELPush the other key . ( TUNER mode)DESCRIPTIONOSC OK and SYNCHRO OK : Display OK (1 sec) OSC NG: Display ERR 1 SYNCHRO NG: Display ERR 2FL and LEDs are lighting . STANDBY LED and TIMER LED are flashing in the cycle.SETTING METHODWhile pressing ENTER key, plug the AC power cord into the AC power wall outlet.CONTENTSDisplay : INITIALIZECD mecha, DECK mecha are initialized. The memory is cleared . (Display CD ERR or X ERR:Dont initialize CD or DECK mechanism. )1. TEST MODE1-1 CD TEST MODE1-2 DECK TEST MODE1-3 SUB CLOCK OSCILLATION DIAGNOSIS and FL LED ALL LIGHTING MODE1-4 INITIALIZE MODERXD-V525/V626/V727/V8286CIRCUIT DESCRIPTION18QDECK SYSTEM IC(HA12219NT)2. Main microprocessor M30622MC-598FP (X13:IC1)2-1 Microprocessor periphery block diagram2-2 Key matrixRXD-V525/V626/V727/V8287CIRCUIT DESCRIPTIONPin No.NameI/OConnectDescription1D-DATAOPDDOLBY DIGITAL IC DATA OUTPUT (CXD2724Q)2D-CLKO-DOLBY DIGITAL IC CLOCK OUTPUT (CXD2724Q)3PLLDATAOPDPLL IC DATA (LC72131)4STIPUSTEREO INPUT5PLLCEOPDPLL IC CE (LC72131) OUTPUT6-IPDNO USE7PLLCLKIPDPLL IC CLOCK (LC72131) OUTPUT8BYTEIVSS 8/16BIT CHANGEOVER9CNVSS-VSS GND10XCIN-TIMER CRYSTAL OSCILLATOR (32.768kHz)11XCOUT-TIMER CRYSTAL OSCILLATOR (32.769kHz)12RESETIPUuCOM RESETH=NORMAL / L=RESET13XOUT-MAIN CLOCK OSCILLATOR 10MHz (CERAMICS)14VSS-VSS GND15XIN-MAIN CLOCK OSCILLATOR 10MHz (CERAMICS)16VCC-VCC+5V17NCIPUNO USE(+5V)18REMIPDREMOCON SIGNAL INPUT19ESS_STIPDTRANSMIT/RECEIVING START OUTPUT FROM ESSHL TRUST ON20ESS_STIPDTRANSMIT/RECEIVING START OUTPUT FROM ESSLH TRUST ON21LEDDT3OPDLED DRIVER IC DATA 3 OUTPUT(BU2090) 22LOSWIPDCD LOAD( TRAY CLOSE ) SW23UNLOSWIPDCD UNLOAD(TRAY OPEN ) SW24RTLOPDCD MOTOR CONTROL OUTPUT(LEFT)25BRKMOPDCD MOTOR CONTROL OUTPUT (BREAK)26CLOSEOPDCD MOTOR CONTROL OUTPUT (CLOSE)27OPENOPDCD MOTOR CONTROL OUTPUT (OPEN)28ESS CLKIPDCLOCK INPUT FROM ESS29ESS DINIPUDATA INPUT FROM ESS30ESS DOOPUDATA OUTPUT TO ESS31FLDATAOPDFL DOT DRIVER DATA OUTPUT(M66004FP) 32CEIPUBACK UP CEH=AC ON / L=AC OFF33FLCLKOPDFL DOT DRIVER CLOCK OUTPUT (M66004FP) 34FLCSOPDFL DOT DRIVER STROBE OUTPUT(M66004FP) 35RTROPDCD MOTOR CONTROL OUTPUT (RIGHT)36TDSWIPUTRAVERSE DOWN SW37TUSWIPUTRAVERSE UP SW38PHTRIPUCD STOP SW39PSSWIPUPOSITION & DISC DETECT SW40-OPD-41FL RESETOPDFL DOT DRIVER RESET OUTPUT (M66004FP) 42DCOFFOPDCD POWER ON/OFF(ESS)H=ON / L=OFF43SDAI/OPUROM CORRECTION DATA I/O44SCKO-ROM CORRECTION CLOCK OUTPUT45-OPDNO USED46CD_5VOPDESS POWER SUPPLY CONTROL(TUNER=OFF)H=OFF / L=ON4749-OPDNO USED50EVCLKOPDSOUND CONTROLLER IC CLOCK OUTPUT(M62492FP) 51EVLATOPDSOUND CONTROLLER IC STROBE OUTPUT(M62492FP) 52EVDATAOPDSOUND CONTROLLER IC DATA OUTPUT(M62492FP) 53,54A-JOG1,2IPUJOG A (SOUND CONTROL) INPUT1,255,56B-JOG1,2IPUJOG B (MULTI CONTROL) INPUT1,257,58ENC1,2IPUVOLUME ENCODER INPUT1,259LEDCLKOPDLED DRIVER IC CLOCK OUTPUT(BU2090) 60,61LEDDT1,2OPDLED DRIVER IC DATA OUTPUT 1,2(BU2090) 2-3 Pin descriptionRXD-V525/V626/V727/V8288CIRCUIT DESCRIPTIONSET TYPETUNER TYPER1VoltCOMPARE LEVELK,PK91k4.51D9h M,Y,X,IM139k3.98BDhM(with SW)M222k3.44A0hTT13k2.8382hE1,E2E8.2k2.2562hQQ4.7k1.628hJJ2.7k1.06Pin No.NameI/OConnectDescription62VCC-VCCPOWER SUPPLY (+5V)63SR-LIMITOPDCENTER/SURROUND (SUPER WOOFER) SP RELAY CONTROLH=ON / L=OFF64VSS-VSS GND65B-PHIPUB DECK SPIN DETECT INPUT66A-PHIPUA DECK SPIN DETECT INPUT67A/B2OPDDECK A/B CHANGEOVER CONTROL 168A/B1OPDDECK A/B CHANGEOVER CONTROL 269PLLDOIPUPLL IC DATA INPUT (LC72131)70D-RSTOPUDOLBY DIGITAL IC RESET OUTPUT (CXD2724Q)71D-REDYIPUDOLBY DIGITAL IC READY INPUT (CXD2724Q)72D-XLATOPDDOLBY DIGITAL IC LAT OUTPUT (CXD2724Q)73HP-DET-INIPUHEAD PHONE INPUTH=OFF / L=ON74BIASOPDBIAS ON/OFF CHANGEOVER CONTROLH=ON / L=OFF75R/POPDR/P CHANGEOVER CONTROLH=REC / L=PLAY76B.SOLOPDB DECK SOLENOID CONTROL77CPMOPDDECK CAPSTAN MOTOR CONTROL78PSCLKOPDEXPANDER IC CLOCK INPUT (HD74HC166P)79PSINIPDEXPANDER IC DATA OUTPUT (HD74HC166P)80PSLOADOPDEXPANDER IC DATA LOAD OUTPUT (HD74HC166P)81AMUTEOPDAUDIO MUTE82ATTOPD-10dB ATTENUATORL=ON / H-OFF83POWEROPDPOWER RELAY CONTROLH : ON84PROTECTIPDPROTECT DETECT (VOLTAGE DETECT)L=OFF / H=ON85SPRELAYOPDSPEAKER RELAY CONTROLH : ON86STBY-LEDOPDSTANDBY LED CONTROLH=ON / L=OFF87TIMER-LEDOPDTIMER LED CONTROLH=ON / L=OFF88A.SOLOPDA DECK SOLENOID CONTROL89SPEANAIPDMUSIC SIGNAL INPUT (A-D)90MODELIPDMODEL DISTINCTION INPUT (A-D)91TYPEIPDTUNER DESTINATION DISTINCTION INPUT (A-D)92DPSSIPDNON-RECORDED SPACES DETECTING INPUT (A-D)93-IPDNO USED94,95KEY3,2IPUA-D KEY INPUT 3,296AVSS-VSS GND97KEY1IPUA-D KEY INPUT 198VREF-A-D INVERTER REFERENCE VOLTAGE INPUT (+5V)99AVCC-VCCA-D INVERTER POWER SUPPLY INPUT (+5V)100SDIPUSD INPUTMODELVOLTCOMPARE LEVEL(XH)XD-V8284.5C4hXD-V7273.380hXD-V6261.73BhXD-V4240.6(Pin 90) Model distinction(Pin 91) Tuner destination These models fix the voltage for M,I,V type.RXD-V525/V626/V727/V8289CIRCUIT DESCRIPTION2-4 EXPANDER IC PIN DESCRIPTION(X13:IC14) BU2090FPin No.NameI/OConnectDescription1VSS-GND2DATAIPDDATA INPUT3CLOCKIPDCLOCK INPUT4120/70O-DECK 120/70us CHANGEOVER5D-R/PO-DECK DOLBY R/P CHANGEOVER6B1/B2O-DECK B1/B2 CHANGEOVER7DOLBYO-DECK DOLBY ON/OFF8NOR/CrO2O-NOR/CrO2 CHANGEOVER9BEAT CANCELO-BEAT CANCEL ON/OFF10-O-NO USED11CD RECO-CD REC CONTROL1215NCO-NO USED16VDD-+5V(X14: IC52) BU2090 (LED ON : LOW ACTIVE)Pin No.NameI/OConnectDescription1VSS-GND2DATAIPDDATA INPUT3CLOCKIPDCLOCK INPUT4SOUNDO-SOUND ICON LED ON/OFF5TIMERO-TIMER ICON LED ON/OFF6EX.BASS/SWO-EX. BASS/SW LED ON/OFF7ECHO 1O-ECHO 1 ON/OFF PORT8EMUTEO-ECHO MUTE PORT9DISC3O-DISC3 LED ON/OFF10DISC2O-DISC2 LED ON/OFF11DISC1O-DISC1 LED ON/OFF12MENUO-MENU LED ON/OFF13CD-PGMO-CD PGM ICON LED ON/OFF14CD-TO-TAPEO-REC OPTIONS ICON LED ON/OFF15TAPE-TO-TAPEO-DUBBING ICON LED16VDD-+5V(X14:IC53) BU2090 (LED ON : LOW ACTIVE)PinNameI/OConnectDescription1VSS-GND2DATAIPDDATA INPUT3CLOCKIPDCLOCK INPUT4KEY CONO-KEY CON LED ON/OFF5-O-NO USED6ECHOO-ECHO LED ON/OFF7SURROUNDO-SURROUND ICON LED ON/OFF8-O-NO USED9PBCO-PBC LED ON/OFF10-O-NO USED11VIRTUALO-DOLBY VIRTUAL SURROUND LED ON/OFF123 STEREOO-DOLBY 3 STEREO LED ON/OFF13PRO LOGICO-DOLBY PRO LOGIC LED ON/OFF14-O-NO USED15KARAOKEO-KARAOKE LED ON/OFF16VDD-+5VRXD-V525/V626/V727/V82810ADJUSTMENTCD player adjustmentNO.ITEMINPUTSETTINGSOUTPUTSETTINGSCD PLAYERSETTINGSALIGNMENTALIGN FORFIG.NO. 1 :Choose either LASER POWER or LASER CURRENT CHECK. ( Confirm to be satisfied either LASER POWER or LASER CURRENT CHECK.)TEST MODE : While pressing the PLAY/PAUSE key ,plug the power code into the AC power wall output.Insert TEST DISC.1LASERPOWER-Set the sensorsection of theoptical power meteron the pickup lens.Press thePLAY/PAUSE key tocheck that the displayis 03.-On the power from 0.05to 0.15mW.When thediffraction grating iscorrectly aligned withthe RF level of 0.8Vp-por more.(a)1LASER CURRENTCHECKTest disctype4Set the testerbetween both thecheck land of R8 (10) on the PCB(X32)of the set upper.Press thePLAY/PAUSE key tocheck that the displayis 03 or 05.-500200mV(Caution) Connect and remove to the tester for the laser current check at POWER OFF condition. 2FOCUS ERROR(Note) Type 4 disc: SONY YEDS-18 test disc or equivalent. (KTD-02)BIASTest disctype4Connect anoscilloscope asfollows.CH1:RF(CN1:1pin)GND:VC(CN1:4pin)Press thePLAY/PAUSE key .Confirm that thedisplay is 05.FE BIASVR1Optimum eye pattern(b) (d)(d)(a) Laser Power(b) Test pointPickup0.050.15 mWOptical power meterRF signal in test mode (PLAY).Perform the tangential and focusing offset arefocused into one point on the display. The crossingpoints above and below the center shall also belooked clearly. RF signal: AC coupledFE2VCTE2TE1NCVR1FE1RFCN1CN2X32(Component side)FRONTQ1R811ADJUSTMENTRXD-V525/V626/V727/V828NoITEMDemagnetizationand cleaningAzimuth of theREC/PLAY headTAPESPEED(NORMAL)PLAYBACKLEVELBIAS CURRENTINPUTSETTINGTCC153MTT11410kHz, 10dBTCC110MTT111SCC17273kHz(A)Adjust the AGfor the output ofthe DECK tobecome1kHz(-30dBs)/10kHz(-30dBs).MTT-256U,TCC-160315Hz, 0dBAdjust the playbackoutput to -6.0dBsOUTPUTSETTING