Kenwood-KDCW-7531-Service-Manual电路原理图.pdf

© 2005-3 PRINTED IN JAPANB53-0265-00 (N)1708CD RECEIVERKDC-MP828KDC-W7531/YKDC-W8531/YKDC-X789/X8529/X889SERVICE MANUAL24Bit DAC KDC-W7531PTYFFANSCRLVOLAUDATTSWAME MENU SCAN REP M.RDMSRCF.D.RDMS.MODERDMSystemPTYVOLAUDATTFFANSCRLSWSRC24Bit DAC KDC-W8531AMETI MENU SCAN REP M.RDMF.D.RDMS.MODERDMSystem 24Bit DAC KDC-X789PTY/C.S.FFANSCRLVOLAUDATTSWSCAN REP M.RDMSRCF.D.RDMS.MODERDMAMEAUTO MENUSystemVOLAUDATTFFANSCRLSWSRC24Bit DAC KDC-X8529SCAN REP M.RDMF.D.RDMS.MODERDMSystemAMEAUTO MENU24Bit DAC KDC-X889PTY/C.S.FFANSCRLVOLAUDATTSWSCAN REP M.RDMSRCF.D.RDMS.MODERDMAME MENUANKDC-MP828SRCVOLAUDATTAMEAUTO MENUFFSCANS.MODE REP M.RDMF.SCRLSWPTY/C.S.D.RDMRDMAUTOSPARE TDF PANELMAIN UNIT NAME TDF PARTS No. TDF NAMEKDC-MP828 Y33-2200-61 TDF-MP85DKDC-W7531/Y Y33-2190-64 TDF-W7531KDC-W8531/Y Y33-2190-63 TDF-W8531KDC-X789 Y33-2190-61 TDF-75DXKDC-X8529 Y33-2190-62 TDF-X8529Mounting hardware assy(J21-9716-03)Plastic cabinet assy(A02-2732-03)* DC cord(E30-xxxx-xx)Lever(D10-4589-04) x2* Escutcheon(B07-xxxx-xx)KDC-MP828 KDC-W7531/YKDC-W8531/Y KDC-X789KDC-X8529 KDC-X889KDC-X889 Y33-2190-60 TDF-85DX* Tapping screw(N09-xxxx-xx)* Antenna adaptor(T90-0523-05)* DC cord(E30-6412-05)* Compact disc(W01-xxxx-xx)* Screw set(N99-xxxx-xx)* Remote controller assy (RC-527)(A70-2067-05)Battery(Not supplied)CD MECHANISM EXTENSION CORD (24P) : W05-0934-00A unique identification number (Unique ID) is given to each unit, which is imprinted on the CD mechanism assembly. If and when the mechanism assembly or Flash ROM (IC17) on the mechanism board is replaced, it is necessary to write the Unique ID.For details, refer to “How to Write the Unique ID” on Page 18.* Depends on the model. Refer to the parts list.This product uses Lead Free solder.2KDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X889BLOCK DIAGRAMAM+BFRONT-ENDA1CN550CD/MDJ2LX-BUSSW5VA8VA8VAGCE-VOL/SOURCE SELECTORLPF DSP DAC LPFA3.3V A5VD3.3V D5VBU5VA8VA3.3V REF+BSVR REFPREMUTE AMPOPICPOWER9VPRE OUTPRE OUTPRE OUTAUX INSHIFTLEVELD3.3VIC304IC303IC301,302 IC306-308IC305IC1IC5 IC3IC4IC800 Q800,802Q608-613Q801IC750IC500Q402,403IC300IC601-603IC103DRIVERMUTEBU5VIC102RDSDECODERIC400IC100MD-DETMEMORYINSTALLERROM CORRECTIONIC104SW5VBU5VA8VD5VSERVOQ450DSIBU5VUPBACKRESETIC(X16-252)BU5VSYSTEM u-COMOPEL DISPP-CONANT-CONEXT AMPACC DETDIMMERSURGE DETB.U DETQ20,21BU5VSW16VQ50-52Q41,43,44ILL+BSW14VIC10A8VQ12IC601-603DC/DC(5VPRE)+BMOTORQ30,3242,45PANEL5V(VFD)SERVOIC80FL DCQ31,33DC/DCIC60DRIVERMOTORIC450CD5VQ63,64SW5VQ22,23MECHAPANELM1CLOSEOPEN/DETQ100,101P CONANT CONEXT.AMP.CONDIMMERACCBACK UPLINEPANELSP OUT(FR)SP OUT(RL)SP OUT(FL)SP OUT(RR)REMOTEIC8LEVEL SHIFTD3.3VIC11SW5VQ7,8D2.5VIC10Q11,13FL+BQ9,10FL3.3VFLQ6SW3.3VPANELu-COMIC4IC7RESET SWIC5IC1S1FLASH ROMENCODERROTARYIC2ANALYZERSPECTRUMIC6REMOTE KEY ILLUMIQ3-5BU5VSW5VSERVOD5VA8V9VILL+BQ40,ED1ILL+B(SW)(FRONT)(REAR)WIREDLEVEL SHIFTQ205Q203,204Q202Q207Q206Q208,209IC200KEY MATRIXE2PROMFSTFM/AMAUXCHCDorMDSPECTRUMMUTE A,CMUTE 0,1WININ OFFSETRSTMUTE A,CSTBYforMPXRDSRSTANALYZERSPECTRUMMUTE0,1,2ANALYZERPANELTR COILFO COILCFABEPDLDSERVO DSPMOTORDRIVERSP MOTORLOADING &MOTORSLEDIC4IC2u-COMIC1MP3/WMA/AACIC15IC53.3V REG.3.3V REG.IC211.8V REG.IC20 IC193.3V REG.IC145V REG.SWDAC3.3 5V3.3 5V3.3 5V3.3 5VLPFIC18IC1316MBITSDRAMIC16ROMFLASHIC174MBITD5VS7.5VA8VBU5VRF AMPDECODERACD DECODER16.898MHzSW3.3V(712)S7.5VRESETSCKSISTBA0SOINTQPOWER ON26.88MHzBU3.3VD5VFLAGC16MBCLKDATALRCKSW3.3VSW3.3VSW1.8V(CS7410)(CS7410)(712)POWER ONBU3.3VSW5VBU5VA8VRESETDATA MUTESREQ BREQDOCSCLKDI PCM DATAPCM BCLKPCM XCKPCM LRCKDAC RSTDAC MUTEINFINITY 0 DET.L/RSER/GPIOL/RAUDIO MUTEI2CMSTOP,MRESETLOE/LIM SW8EJE-SWLOS-SW12EJE-SWL/RSW3.3V(712)CONTROLLERMEMORY8BIT0-2MBROMDRAM256k-8MB4,8,16BIT(CS7410)SW3.3V2x512kx16BIT512kx8BITSW3.3V(CS7410)SW5VEMPHI2SCD I/FDAC CONTROLSW3.3V(CS7410)SW1.8V&CD PLAYER UNIT (X32-5730)KDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X8893COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-3xxx-xx)Ref. No. Application / Function Operation / ConditionIC1 DSP ANALOG POWER SUPPLY 3.3V outputIC3 DAC DIGITAL POWER SUPPLY 5.0V outputIC4 DAC ANALOG POWER SUPPLY 5.0V outputIC5 DSP DIGITAL POWER SUPPLY 3.3V outputIC10 AUDIO8V REF POWER SUPPLY 1.27V outputIC60 SWITCHING REGULATOR CONTROLLERVFD / Mechanism digital power supply.OUT1 : VFD (4.7V), OUT2 : Mechanism digital (5V)IC80 FL+B VFD power supply (57V)IC100 RESET IC “L“ when detection voltage is 3.6V or lessIC102 SYSTEM µ-COM FM/AM tuner / Changer / CD mechanism / Panel / Volume / Tone controlIC103 MUTE DRIVER Mute controlIC104 E2PROM Installer memoryIC200 POWER CONTROL IC Power control switchingIC300 E-VOL & SOURCE SELECTOR Source / Volume / Tone controlIC301,302 AUDIO BUFFER AMP DSP input LPFIC303 DSP Digital signal processingIC304 LEVEL SHIFT Conversion from 3.3V to 5.0VIC305 DAC D/A ConverterIC306308 AUDIO BUFFER AMP DAC output LPFIC400 RDS DECODERIC450 PANEL MECHA MOTOR DRIVERIC451 G-ANALYZER Analog gravity sensorIC500 SPECTRUM ANALYZER BUFFER AMP & AGC Spectrum analyzer buffer / Auto gain controlIC600 ±9V AVR 5V pre-out power supplyIC601603 5V PREOUT AMP Buffer/Gained controlIC750 POWER IC Front L/R and a rear L/R signal amplificationIC800 AUDIO3.3V REF SUPPLY / SVR6.8V REF SUPPLYSupplying audio 3.3V reference voltage to E-VOL/LPFSupplying SVR6.8V reference voltage to IC750 (POWER IC)Q10,11 AUDIO8V AVR When Q11 base is “H”, A8V is outputQ12 SW14V When base is “H”, SW14V is outputQ20,21 B.U.5V AVR When backup is “ON”, BU5V is outputQ22,23 SW5V When Q23 base is “H”, SW5V is outputQ30,32 MOTOR+B AVR (PANEL MECHA) When Q9 base is “H”, 7.5V MOTOR+B is outputQ31,33 SERVO+B AVR When Q33 base is “H”, 8V SERVO+B is outputQ40,42,45 PANEL5V AVR When Q42 base is “H”, PANEL5V is outputQ41,43,44 ILLUMINATION AVR When Q43 base is “H”, 10.5V ILLUMI voltage is outputQ5052 SW16W (SERGE PROTECTION) When Q51 base is “H”, SW16V (13V) is outputIN1 IN2 PANEL MECHALLWAITLHOPENHLCLOSEHHSTOP4KDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X889COMPONENTS DESCRIPTIONRef. No. Application / Function Operation / ConditionQ60 VFD (4.7V) AVR SW When base is “H”, VFD AVR is turned “OFF”SWITCHING REGULATOR FREQUENCYQ61CONTROL SW (IC60)Q62 MECHA DIGITAL AVR SW When base is “H”, MECHA DIGITAL AVR is turned “OFF”Q63 VFD (4.7V) AVR SWITCHING POWER DRIVER Controlled by IC60 and Q61 determines frequencyQ64 MECHA DIGITAL AVR POWER DRIVER Controlled by IC60 (Frequency is fixed to 400kHz)Q80,81 VFD (57V) AVR SW When Q81 base is “H”, VFD (57V) is outputQ91 PANEL5V DISCHARGE SW When base is “H”, PANEL5V is dischargedQ100,101 PANEL DETECT SW When Q100 base is “L”, panel is detectedQ200,201 PREOUT MUTE DRIVER When base is “L”, MUTE DRIVER is turned “ON”Q202 ACC DETECT SW When base is “H”, ACC voltage is detectedQ203,204 SERGE DETECT SW When Q204 base is “H”, IC750 (POWER IC) is turned to standby.Q205 BU DETECT SW When Q35 base is “H”, backup voltage is detectedQ206 EXT AMP CONTROL BUFFER Output buffer from IC102 (µ-COM)Q207 SMALL LAMP DETECT SW When base is “H”, small lamp is detectedQ208,209 POWER ANTENNA SW Q206 base is “H”, 14V POWER ANTENNA voltage is outputQ300 DSP MUTE SW When base is “L”, DSP is mutedQ402,403 AM+B SW When Q403 base is “H”, AM+B is outputQ450 DSI DRIVERWhen base is “H”, DSI is turned “ON”. When base is “L”, DSI isturned “OFF”. When panel is off, DSI blinks.Q500 SPECTRUM ANALYZER AGC CONTROLLER When excess input is made, feed-back is interrupted which slows down output.Q600602 PRE-AMP +9V AVRQ600 and Q602 function as differential amplifier.Q601 functions as a driver and +9.4V is supplied to op amp for pre-out.Q603605 PRE-AMP -9V AVRQ603 and Q605 function as differential amplifier.Q604 functions as a driver and 9.1V is supplied to op amp for pre-out.Q606,607 AUDIO 10.5V AVR When Q606 base is “H”, 10.5V is outputQ608613 PREOUT MUTE SW When base is “H”, pre-out is mutedQ800,802 REF+B AVR When Q800 base is “H”, 13V is outputQ801 SVR6.8V REF SUPPLY AGC CONTROLLER When backup voltage is down, feed-back is interrupted which slows down output. SWITCH UNIT (X16-2950-1x / X16-3122-71)Ref. No. Application / Function Operation / ConditionIC1 ROM IC / FLASH ROM IC Display image data storageIC2 SPECTRUM ANALYZER 6-ch band pass filterIC4 PANEL µ-COMIC5 RESET IC Functions when panel is attachedIC6 REMOTE CONTROLIC7 LEVEL SHIFT Conversion from 5V level to 3.3VIC8 LEVEL SHIFT Conversion from 3.3V level to 5VF SEL2 (BASE)F SEL1LH(BASE)L 400kHz 600kHzH 650kHz 850kHzKDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X8895COMPONENTS DESCRIPTIONRef. No. Application / Function Operation / ConditionIC9 BUFFER Functions when controlling fruorescent indicator tube (ED1)IC10 2.5V REGULATOR For 2.5V power supplyIC11 3.3V REGULATOR For 3.3V power supplyQ1 TRIANGLE GREEN LED SW Lights up when base is “H”Q2 TRIANGLE RED LED SW Lights up when base is “H”Q3 BLUE LED SW Lights up when base is “H”Q4 GREEN LED SW Lights up when base is “H”Q5 RED LED SW Lights up when base is “H”Q6 SW3.3V SW When base is “L”, SW3.3V is supplied to IC1 and IC3Q7,8 SW5V SW When Q8 base is “H”, SW5V is supplied to IC2 and IC6Q9,10 FL3.3V SW When Q9 base is “H”, FL+3.3V (VDD1) is supplied to fruorescent indicator tubeQ12 FL BLK SW When base is “H”, fruorescent indicator tube (ED1) lights upQ11,13 FL+B SW When Q11 base is “H”, FL+B (VDD2) is supplied to fruorescent indicator tube CD PLAYER UNIT (X32-5730-00)Ref. No. Application / Function Operation / ConditionIC1 µ-com for mechanism controlIC2 LSI for CD signal processing +RF AMPIC4 BTL driver SP, SL (including LO/EJ) motor and PU actuatorIC5 SW3.3V regulator 3.3V power supply for IC2, PU, and IC18 digital sectionIC13 Audio active filter Secondary LPFIC14 A5V regulator 5V power supply for DACIC15 Compacted audio decoding DSP AC drive decoder, MP3/WMA/AAC decoderIC16 Compacted audio expanding SDRAMIC17 Decoder software, unique ID storage flash ROMIC18 Audio external 24-bit D-A converterIC19 BU3.3V regulator 3.3V power supply for µ-comIC20 1.8V regulator 1.8V power supply for core section of IC15IC21 Decoder/SDRAM/Flash ROM 3.3V regulator 3.3V power supply for port section of IC15, IC16 and IC17Q1,4 Level shift (3.3V5V) FETQ3,5,6 Level shift (3.3V5V) transistor with 2 elementsQ7 Level shift (3.3V5V) transistorQ8 APC (Auto Power Control) transistorQ9,10 Transistor for preceding beam delaying SW during non-searchQ11 A5V power supply constant circuit FETQ12,13 SW8V SW transistorQ14,15 SDRAM 3.3V power supply SW transistor SDRAM power supply is turned off when /CSRST is “L”D2 UPD63712GC built-in resetting terminal static protection diodeD3 Protection diode for pick-up laser diodeD4,D5 Diode for securing audio L-R reference voltageD6 Diode for control terminals “L” confirmation for IC20 and IC216KDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X889MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM MICROCOMPUTER : IC102 (X34- : ELECTRIC UNIT)Pin No. Pin Name I/O Function Processing Operation1 VREF - Analog reference voltage2AVCC -3 LX DATA S I Data from slave unit4 LX DATA M O Data to slave unit5 LX CLK I/O LX-BUS clock6 WIRED REMO I External display remoter controller7 LX MUTE I Mute request from slave unit H : MUTE ON, L : MUTE OFF8AUD SDA O E-VOL data SPI communication9AUD SEL O E-VOL control SPI communication10 AUD SCL O E-VOL clock SPI communication11 DAC RST O DAC reset L : DAC RESET12 NC - Not used13 BYTE - GND14 CNVSS -15 XCIN I Clock 32,768kHz16 XCOUT I Clock 32,768kHz17 RESET I Reset18 XOUT - Clock 12MHz19 VSS - GND20 XIN - Clock 12MHz21 VCC1 -22 NMI I23 PANEL DET I Panel detection H : No panel, L : Panel exists24 RDS CLK I RDS decoder clock25 LX REQ S I Communication request from slave unit26 PON AM I/O AM power supply control AM in operation : H, AM not in operation : HI-Z27 LX REQ M O Communication request to slave unit28 TUN IFC OUT I Front-end IFC out H : Station exists, L : No station29 RDS AFS L I/O Time constant switching when noise detected Refer to Truth Value Table (RDS AFS)30 RDS AFS M I/O Time constant switching when noise detected Refer to Truth Value Table (RDS AFS)31 RDS QUAL I RDS decoder QUAL32 RDS DATA I RDS decoder DATA33 PWIC BEEP O Beep34 TUN SCL I/O Front-end I2C clock MAX 400kHz35 TUN SDA I/O Front-end I2C data36 SYS DATA O Inside-panel communication data MAX 500kbps37 VCC1 -38 PAN DATA I Inside-panel communication data MAX 500kbps39 VSS -40 SYS REQ O Communication request from system µ-com41 PAN REQ I Communication request from panel42 SDA I/O E2PROM I2C data MAX 100kHzKDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X8897Pin No. Pin Name I/O Function Processing Operation43 SCL I/O E2PROM I2C clock MAX 100kHz44 PON PANEL I/O Panel 5V controlON : H (Momentary power down/Panel detached)11 Minutes after ACC OFF : Hi-Z45 DSI I/O DSI control4649 NC - Not used.50 PM MOT1 O Panel motor control 1 Refer to Truth Value Table (PANEL MOTOR)51 PM MOT2 O Panel motor control 2 Refer to Truth Value Table (PANEL MOTOR)52 EPM I Flash EPM53 PM OPEN I Panel full open detection Refer to Truth Value Table (PANEL MECHA)5456 NC - Not used57 P5V DIS I/O Panel 5V discharge control H : Discharge, Other : Hi-Z58 PM CLOSE I Panel mechanism close detection Refer to Truth Value Table (PANEL MECHA)59 ROMCOR DET I E2PROM write request H : Write60 PM DET I Panel mechanism detection H : Function check in progress61 SC CON O Inside-panel communication (Chip enable when flash) POWER OFF, ACC OFF : L62 NC - Not used63 TUN TYPE1 I Destination setting 1 TUN TYPE1 : L, TUN TYPE2 : L64 TUN TYPE2 I Destination setting 2 TUN TYPE1 : L, TUN TYPE2 : L65,66 NC - Not used67 CD DISC12 SW I 12cm CD detection68 CD LOS SW I CD loading detection69 CD MUTE R I CD mute (Rch) request L : Rch mute request70 CD MUTE L I CD mute (Lch) request L : Lch mute request71 CD MRST O CD mechanism microcomputer reset L : Reset, H : Normal72 CD MSTOP O CD mechanism microcomputer stopL : Mechanism microcomputer stop,H : Mechanism microcomputer in operation73 NC - Not used74 CD LOE LIM SW I CD detection (Chucking SW) H : Loading complete, L : No disc75 CD LOEJ I/O CD motor control Refer to Truth Value Table (CD MOTOR / CD LOEJ)76 CD MOTOR O CD motor control Refer to Truth Value Table (CD MOTOR / CD LOEJ)77 PON ILLUMI I/O Key illumination power supply control ON : H, OFF : Hi-Z78 PON CD I/O CD/WMA power supply control At time of CD source: H, Other than CD : Hi-Z79 PON O Power supply control POWER ON : H, POWER OFF : L80 PON FL+B O Fruorescent indicator tube bias power supply control POWER ON : H, POWER OFF or display black out : L81 PON FDC I/O Fruorescent indicator tube filament power supply control POWER ON : L, POWER OFF or display black out : Hi-Z82 F SEL1 O SW-Reg frequency switching83 F SEL2 O SW-Reg frequency switching84 DIAG I/O P-CON excess current surveillance85 VCC2 -86 EXT AMP CON I/O External amplifier control87 VSS -8891 TYPE 1TYPE4 I Destination switching92 NC - Not usedMICROCOMPUTERS TERMINAL DESCRIPTION8KDC-MP828/W7531/W7531Y/W8531/W8531Y/X789/X8529/X889Pin No. Pin Name I/O Function Processing Operation93 OEM DISP DATA I/O External display DATA External display94 OEM DISP CLK I/O External display CLK External