Kenwood-RXDM-31-Service-Manual电路原理图.pdf

downupon/standbyTAPE recmenupanelTAPEdirectionSTOPCDopen / closeset / demoTUNER /band44AUXrepeatsoundVOLUME/ multi controlO.T.E.CD TAPE6tapeEQ.722Auto Reversephonespush open0TAPE / preset11Top panel(A21-3780-08)Display lens *(B12-)Knob (REPEAT)(K29-7629-08) Knob (SOUND)(K29-7633-08) Knob (O.T.E)(K29-7632-08)LED lens (MIDDLE)(B12-0376-08)Knob (VOLUME)(K29-7626-08)Sensor lens(B12-0375-08)Cassette door cover(SILVER)(A02-2922-08)Cassette door lens(B10-3524-08)Panel cover(A21-3778-08)Rubber foot(J02-1456-08) Knob(FF/TUNER/AUX)(K29-7631-08)Head phone jack(E11-0398-08) Knob (SET/DEMO)(K29-7630-08)Knob (MENU)(K29-7628-08)Knob(TAPE/EQ/CD)(K29-7634-08)Knob(TAPE/STOP)(K29-7635-08)Control panel *(A21-)Knob(ON/STANDBY)(K29-7636-08) Knob(PANEL OPEN/CLOSE)(K29-7637-08) Knob (TAPE REC)(K29-7627-08)(HM-331)*MICRO HiFi COMPONENT SYSTEMRXD-M31/LS-M31(S)SERVICE MANUAL©1999-4/B51-5521-00 (K/K) 3590*Refer to page 2 if you wnat to know system configuration.RXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW2086-5306051SYSTEM MAIN UNIT SPEAKERHM-331 RXD-M31 * LS-M31(S)FM indoor antenna (1) Loop antenna (1)Batteries (R6/AA) (2)Please confirm that the following accessories are present.Europe, and U.K. Other countries* AC (T90-0846-08) (E03-0115-05)(T90-0810-05) : ET (T90-0801-05) : KPMXplug adaptor (1)* Use to adapt the plug on the powercord to the shapeof the wall outlet.(Accessory only for regions where use is necessary.)Remote control unit (1)(A70-1242-05) : RC-F0503E.ET(A70-1241-05) : RC-F0503.KPMXBattery cover (A09-1114-08)¢REMOTE CONTROL UNITRC-F0503ESLEEPTONESOUND123TIMER456REPEAT789RANDOM+100PGMCLEAR DOT DISP.TIME DISP.TAPEP.CALLTAPETUNER BANDCDPTYTA/NEWSAUXSETENTERMUTE42 37 % 61POWER VOLUMEO.T.E.Operation to resetThe microcomputer may fall into malfunction (impossibil-ity to operate, erroneous display, etc.) when the powercord is unplugged while unit is ON or due to an externalfactor. In this case, execute the following procedure toreset the microcomputer and return it to normal condi-tion.Unplug the power cord from the power outlet then, whileholding the “set/demo” key depressed, plug the powercord again.Please note that resetting the microcomputer clears thecontents stored in and it returns to condition when it leftthe factory.2 2set/demoRXD-M312CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3BLOCK DIAGRAM.4CIRCUIT DESCRIPTION.5ADJUSTMENT.8PC BOARD.9SCHEMATIC DIAGRAM.14EXPLODED VIEW.27PARTS LIST.29SPECIFICATIONS.37AccessoriesCautionsSystem configurationContents*Refer number for LS-M31(S), refer to parts list on page 36.RXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW 3RXD-M313EXTERNAL VIEWFM300WFM75WAMGNDDIGITALOUTOPTICALANTENNAAUX INPUTAC 110120VAC 220240VSPEAKERS(616)+SUPERWOOFERPRE OUTMANUALAUTOPANELOPEN/CLOSERRLLMetal plate(RIGHT SIDE)(J21-6763-08)Metal plate(LEFT SIDE)(J21-6762-08)Speaker terminal(E70-0113-08)Phono jack(E63-1092-08)Slide switch(S62-0090-08)Power cord bushing *(J42-)AC power cord *(E30-)Slide switch *(S62-0091-08)Lock terminal board(E70-0112-08) PVC cover(BLACK)(F07-1685-08)RCA jack(E63-1091-08) Oscillating module(OPTICAL)(W02-1114-05)* Refer to parts list on page 29.RXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW6RXD-M314BLOCK DIAGRAMDISPLAYMAIN BOARDONLYE,T TYPEPOWER BOARDRXD-M31BOARD BOARDKEYCASSETTE BOARDTRANSFORMER BOARDAUX INATT-3dBFMAMANT TUNERERASER/PBIAS TRAPOSCBIASQ713IC702IC703FE-BIASVR201(RF-AMP)CXA1571MIC202CXD2587Q(DSP/DAC/CD-TEXT)IC201(4ch BTL-DRIVER)BA5979SIC203MECHA.CDDIGITAL OUTRDS(MAIN u-COM)IC401IC103REMOTEFLFLDRIVER(A/D)KEYENCODERROTARYC0NTROLLEDMIDTREBLEBASSEX.BASSLOUDJK602HEADPHONESAMPPOWERD+12VF.OFFu-COMCD+BFLFL FILAMENTIC801J1001 1007IC1001IC701IC301Q601,IC601Q612-32VAVR+8.0VQ607AC INDIGITAL OUTJK302DECKJK601SPEAKERSJK301JK101Q712MECHA.DECKQ1001-603AC5.6V+5.6VQ611-18.5V+18.5VPOWERAMPAVR+12VQ604FETESIRFFFDRFRDRTFDRTRDRSFDRSRDRMDPRch-OUTLch-OUTPB AMPREC AMPDOUT(FCS.TRK.SLD.SFD-DRIVE)+3dBMUTE200mVDECKTUNERAUXCD+12VRXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW5RXD-M314. Main microprocessor M30622MA-198FP (MAIN BOARD IC401)4-1 Microprocessor periphery block diagram4-2 Key matrixVref = 5VDesti-U-COM DiscriminationReceiving frequency ChannelnationDesti-DSW4 DSW3 DSW2Band range spaceIF RFnationK, P K1 0 0 0FM 87.5MHz108.0MHz 100kHz +10.7MHz 25kHzAM 530kHz1700kHz 10kHz +450kHz 10kHzM, X K2 0 0 1FM 87.5MHz108.0MHz 100kHz +10.7MHz 25kHzAM 530kHz1610kHz 10kHz +450kHz 10kHzJJ01FM 76.0MHz108.0MHz 100kHz -10.7MHz 25kHzAM 531kHz1629kHz 9kHz +450kHz 9kHzE, TE11100FM 87.5MHz108.0MHz 50kHz +10.7MHz 25kHzRDS AM 531kHz1602kHz 9kHz +450kHz 9kHz3. Destination list of TUNER (DSW4=50pin, DSW3=49pin, DSW2=48pin)0=(input low) 1=(input high)IC202IC801DISPLAYBOARDQ10011007IC301IC702IC102IC103E TYPEONLYIC401CD mechanismMechanismcontrolcircuit MechanismcontrolcircuitAuto reversecassettemechanismHead ampCXD2587QCD-DSPTUNERPLL ICLC72131AUDIOAMP SYSTEM IC(LC75396)LEDFD801FLCM1829CKey matrixencoderremoconRDSdemodu-latorDOT driverLC75710NELED driverM30622MA-198FPu-COMVOLTAGEVMENURECO.T.E1. Initialization1-1 Setting of initial conditionsWhile pressing the SET key, plug the AC power cordinto an AC power outlet.1-2 Initializing operation A microcomputer is initialized for start when the ACpower is turned on while pressing the SET key. Atthat time, CD mechanism, and CASSETTE mechanismare also initialized. During the initial operation, the display shows “INITIAL-IZE“ and normal indication, after that it goes off immedi-ately.1-3 Initial items and back up data1-4 Mechanism initialization1-4-1 CD mechanism If a mechanism error occurs, “C” is indicated on thedisplay.1-4-2 CASSETTE mechanism If a mechanism error occurs, “X“ is indicated on the dis-play.chDestinationK2 E2 E1/H1 FM 97.50MHz FM 97.50MHz FM 97.50MHz2 FM 108.00MHz FM 108.00MHz FM 108.00MHz3 AM 630kHz AM 630kHz AM 630kHz4 AM 1000kHz AM 999kHz AM 999kHz5 AM 1440kHz AM 1440kHz AM 1440kHz6 AM 1610kHz AM 1602kHz AM 1602kHz7 FM 87.50MHz FM 87.50MHz FM 87.50MHz8 FM 87.50MHz FM 87.50MHz FM 87.50MHz9 FM 87.50MHz FM 87.50MHz FM 87.50MHz10 FM 89.10MHz FM 89.10MHz FM 89.10MHz11 FM 87.50MHz FM 87.50MHz FM 87.50MHz12 FM 90.00MHz FM 90.00MHz FM 90.00MHz13 FM 106.00MHz FM 106.00MHz FM 106.00MHz14 AM 530kHz AM 531kHz AM 531kHz15 FM 87.50MHz FM 87.50MHz FM 87.50MHz16 FM 98.00MHz FM 98.00MHz FM 98.00MHz17 FM 98.50MHz FM 98.50MHz FM 98.50MHz18 FM 87.50MHz FM 87.50MHz FM 87.50MHz19 AM 990kHz AM 990kHz AM 990kHz20 FM 97.40MHz FM 97.40MHz FM 97.40MHz21 FM 87.50MHz FM 87.50MHz FM 87.50MHz22 FM 87.50MHz FM 87.50MHz FM 87.50MHz23 FM 87.50MHz FM 87.50MHz FM 87.50MHz24 FM 87.50MHz FM 87.50MHz FM 87.50MHz25 FM 87.50MHz FM 87.50MHz FM 87.50MHz26 FM 87.50MHz FM 87.50MHz FM 87.50MHz27 FM 87.50MHz FM 87.50MHz FM 87.50MHz28 FM 87.50MHz FM 87.50MHz FM 87.50MHz29 FM 87.50MHz FM 87.50MHz FM 87.50MHz30 FM 87.50MHz FM 87.50MHz FM 87.50MHz31 FM 87.50MHz FM 87.50MHz FM 87.50MHz32 FM 87.50MHz FM 87.50MHz FM 87.50MHz33 FM 87.50MHz FM 87.50MHz FM 87.50MHz34 FM 87.50MHz FM 87.50MHz FM 87.50MHz35 FM 87.50MHz FM 87.50MHz FM 87.50MHz36 FM 87.50MHz FM 87.50MHz FM 87.50MHz37 FM 87.50MHz FM 87.50MHz FM 87.50MHz38 FM 87.50MHz FM 87.50MHz FML 74.00MHz39 FM 87.50MHz FM 87.50MHz FML 65.00MHz40 FM 87.50MHz FM 87.50MHz FML 69.00MHz2. TUNER preset frequencyITEMSPOWER OFFVOLUME 15BALANCE CENTERLOUDNESS OFFAMP EX. BASS ONINPUT SEL TUNERAUX INPUT 0BASS 0TREBLE 0BAND FMLAST f LIMITTUNER LAST PchAUTO/MONO AUTOPch TEST fCLOCK AM 12 : 00PROG ON AM 12 : 00CLOCK PROG OFF AM 12 : 00TIMER PRO MODE PLAYSOURCE TUNERPch 1EXE OFFOTT OFFSLEEP OFFPLAY MODE TRACKREPEAT OFFCD RANDOM OFFPLAY MODE STOPDIRECTION FORWARDDECK RVS MODE pOPERATION MODE STOPback up data5CIRCUIT DESCRIPTIONRXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW8RXD-M316CIRCUIT DESCRIPTIONPin No. Name I/O Description52 PWX33 NO USED53 ENC1 I ROTARY ENCODER1 (VOL. INPUT A)54 ENC2 I ROTARY ENCODER2 (VOL. INPUT B)55 LED5 NO USED56 LED4 O LED OUTPUT D1032 SELECTOR CD H : ON L : OFF57 LED3 O LED OUTPUT D1031(RED) STANDBY H : OFF L : ON58 LED2 O LED OUTPUT D1031(GRN) STANDBY H : OFF L : ON59 LED1 O LED OUTPUT D1035 TAPE DIRECTION(FWD) H : ON L : OFF60 LED0 O LED OUTPUT D1034 TAPE DIRECTION(RVS) H : ON L : OFF61 FL CE O FL DRIVER CE OUTPUT (LC75710NE)62 VCC POWER SUPPLY63 NC O NO USED64 VSS GND65 A/B-2 O DECK ACTIVITY CHOICE MODE (HA12219NT) 66 A/B-1 O DECK ACTIVITY CHOICE MODE (HA12219NT) 67 CPM O DECK MOTOR CONTROL H : ON L : OFF68 SOL O DECK SOLENOID CONTROL H : ON L : OFF69 REC F SW I DECK FEW REC SW INPUT H : OFF L : ON70 REC R SW I DECK RVS REC SW INPUT H : OFF L : ON71 PACK SW I DECK PACK SW INPUT H : OFF L : ON72 Cr02 SW NO USED73 PLAY SW I DECK PLAY SW INPUT H : OFF L : ON74 B1/2 NO USED75 A120/70 NO USED76 BIAS O DECK BIAS CONTROL H : ON L : OFF77 NOR NO USED78 REC/PLAY NO USED79 NR ON NO USED80 S.CL O CLOCK OUTPUT TO SYSTEM IC/PLL IC81 PRT MD NO USED82 FAN H/L NO USED83 FAN ON/OFF NO USED84 A MUTE O AUDIO MUTE CONTROL H : OFF L : ON85 CD A MUTE O CD ANALOG MUTE CONTROL H : ON L : OFF86 TU. MT O TUNER MUTE CONTROL H : ON L : OFF87 PWR07 O POWER RELAY CONTROL H : ON L : OFF88 PRT07 I PROTECTION DETECT H : PROTECTION ON89-91 KEY1-KEY3 I KEY A/D INPUT1-392,93 A/DP1,A/DP2 I NO USED94 TA. MT O DECK MECHA MUTE OUTPUT H : ON L : OFF95 RDS SLEVEL I RDS S-LEVEL INPUT (E,T type)96 AVSS GND97 PHOTO I DECK ROTARY DETECT INPUT98 VREF 5V REFERENCE VOLTAGE ( NO BACKUP) 99 AVCC 5V POWER SUPPLY ( BACKUP)100 S. DT O DATA OUTPUT TO SYSTEM IC/PLL IC65 66H H RECL H REC PAUSE,ARML L PLAYPin No. Name I/O Description1 CE O SYSTEM IC(LC75396)/PLL IC(LC72131) CE2 PLL DO I PLL DATA INPUT3 SD I TUNER SD DETECT INPUT H : NO TUNED L : TUNED4 STEREO I TUNER STEREO DETECT INPUT H : MONO L : STEREO5 EMPHASIS NO USED6 RDS DATA I RDS DATA INPUT E,T TYPE ONLY7 CE I AC OFF DETECT INPUT H : AC ON L : AC OFF8 BYTE I CONNECT GND9 CNVSS I CONNECT GND10 XCIN I TIMMER CLOCK(32.768kHz)11 XCOUT O TIMMER CLOCK(32.768kHz)12 RESET I U-COM RESET H : NORMAL L : RESET13 XOUT O MAIN CLOCK14 VSS GND15 XIN I MAIN CLOCK16 VCC 5V POWER SUPPLY17 NMI I CONNECT 5V 18 REMOCON I REMOCON INPUT INTERRUPT BY H L19 RDX CLK I RDS CLK INPUT INTERRUPT BY L H20 SCOR I SUB CODE SYNCHRO SIGNAL INTERRUPT BY H L (CXD2587Q)21 CD DC OFF O CD DSP POWER SUPPLY CONTROL H : OFF L : ON22 SCLK O CD SENSE DATD READ OUT CLOCK (CXD2587Q)23 SENSE I CD SENSE INPUT (CXD2587Q) 24 CD CLK O CD DSP LOCK (CXD2587Q)25 XLAT O CD DSP LATCH OUTPUT (CXD2587Q) L : LATCH26 CD DATA O CD DSP DATA OUTPUT (CXD2587Q)27 CD RST O CD DSP RESET OUTPUT (CXD2587Q) H : NORMAL L : RESET28 SQCK O CD SUB CODE CLOCK (CXD2587Q)29 SQSO I CD SUB CODE INPUT (CXD2587Q)30 NC O NO USED31 FL DATA O FL DRIVER DATA OUTPUT (LC75710NE)32 NC O NO USED33 FL CLK O FL DRIVER CLOCK (LC75710NE)34 CDZD NO USED35 UA RT1 NO USED36 UA RT2 NO USED37 LCD O CD LASER OUTPUT CONTROL H : OFF L : ON38 NC O NO USED39 MD RST NO USED40 CD MON O CD MON OUTPUT H : ON L : OFF41 NC O NO USED42 DM SHORT O SAME CD POWER SIGNAL H : OFF L : ON43 DOOR SW I CD DOOR SWITCH INPUT H : OPEN L : CLOSE44,45 NC O NO USED46 MODEL I DESTINATION DISTINCTION (MODEL) H : RXD-M3147 DOLBY I NO USED48-50 CODE24 I DESTINATION DISTINCTION (TUNER)51 FL RST O FL DRIVER RESET OUTPUT (LC75710NE) H : NORMAL L : RESET4-3 Pin description of main microprocessor: M30622MA-198FP (MAIN BOARD IC401)RXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW7RXD-M317CIRCUIT DESCRIPTION5-3 Test mode of CD player5-3-1 Main unit(1) Setting of the test modeWhile pressing the CD PLAY key, plug the ACpower cord into an AC outlet.(2) Canceling of the test mode.Unplug the AC power cord from AC power outlet.(3) OperationKEYCD PLAY +ACCD 5 01POWER ON, SEL CDMecha. initializationSTOP CD 5 01 STOPSKIP DOWNSKIP UPCD 5CD 5 06Indication: Adjustment value/Meanvalue (stop mode only)/HEXRead TOC playDOT TNO SEC. section section sectionTB/FB TB value FB valueTG/FG TG value FG valueFE/RF FE value RF valueTE/VC TE value VC valuePLAY/PAUSEPAUSEPLAY(Cyclicallychanged)CD 5 05PLAY MARK ON CD 5 03PAUSE MARK ON 803 MODE(TRACKING SERVO OFF)05 MODEDISPLAY OPERATIONDOT (DISPLAY) 1st figure 2nd figure 3rd figure 4th figureMECHA. HALF FWD REC INHIBIT RVS REC INHIBIT CRO2(TYPE ) CASSETTE HALFSWITCH DETECTION SW DETECTION SW DETECTION SW DETECTION SWNG / / / /OK T A P E(c) Mechanism half switches indicationThe mechanism half switches status are indicated “/ “ or “TAPE“ on the display as shown below.(4) Basic operation in test mode.The muting during mode selection is not controlled in the test mode.The test mode is cancelled when the AC power is turned OFF.(5) The operation of the keys in the test mode.5-2 Test mode of DECK section(1) SettingWhile pressing the TAPE key(DECK), plug the AC power cord into an AC power outlet.(2) ResettingDisconnect the AC power cord from an AC power outlet or press the ON/STANDBY key.(3) Operation in TEST mode(a) Initial conditionItem ConditionPower ONSelector TAPEMain VOL. 0dB (VOL. 80)Input level(AUX) -6dB(INPUT 0)EX. bass OFFFL, LED, LCD All the FLs, LEDs, and LCDs are turned on(b) 4-sec REC If the REC key is pushed, the system record for 4sec. Then, it rewinds to the REC starting position and plays back auto-matically. If the REC key is pushed during the 4-sec REC operation, the system records further for 4-sec, then returns to the start-ing position of the first 4-sec REC operation and plays back.SERECTORTUNER AUXOPERATION KEYMENUNORMAL ACTIVITYDISPLAY DISPLAY DISPLAYVOLUME INPUT BALANCE(VOLUME15) (INPUT 0 ) (CENTER)4 P.CALL : DOWN VOLUME 1 INPUT-6(dB)7P.CALL : 10 STEP CHANGEOVER VOLUME 40 INPUT 0 (dB)10 20 30 40 01¢ P.CALL : UP VOLUME 80 INPUT+3(dB)REPEATEQU.MAX EQU.MINI EQU.FLATSOUNDS-LEVEL DISPLAY(E.T only)ATT OFF ATT ON NORMAL ACTIVITYTUNER ATT OFF(NORMAL DISPLAY): S-LEVEL A/D VALUE(HEX)5. Test mode5-1 Test mode of the receiver(1) Setting of the test mode.While pressing the Band key, plug the AC power cord into an AC power outlet.(2) Canceling of the test mode.Unplug an AC power cord.(3) Condition in test mode.POWER ONSELECTOR TUNER BANDFL, LED All the fluorescent display indicate and LEDs light. (The all illuminated state is cleared by pressing any mainunit key or remocon key.EX. BASS OFFRXD-M31(K) in-net1,1P( 99.4.22 4:57 PM yW10RXD-M31(b)(a) Laser PowerPickup0.050.15 mWOptical power meterRF signal in test mode (PLAY).Perform the tangential and focusing offset are focusedinto one point on the display. The crossing points aboveand below the center shall also be looked clearly.