Kenwood-DVR5070-avr-sm 维修电路原理图.pdf

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1、70%DVD / AV RECEIVERDVR-5070SERVICE MANUAL 2001-12 PRINTED IN KOREAB51-5778-00 (K/K) 1382 Front panel (A60-2252-08)DEC crystal (B10-3860-08)DIN socket (E63-1243-08)x4Pun cover (A01-3863-08)In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relatin

2、g to laserproduct safety.KENWOOD-Corp. certifies this equipment conforms to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.Caution : No connection of ground line if disassemble the unit. Please conn

3、ect the ground line on rear panel, PCBs, Chassis and some others.Knob(VOLUME) (K29-8207-08)DEC button (K29-8163-08)DEC button p (K29-8165-08)Tuner assy (W02-2925-08)MLD clamp (J42-0350-08)Wire-MCRDM (E30-7276-08)Plastic MLB (B19-1643-08)Oscillating module (W02-2911-08)Oscillating module (W02-2936-08

4、)x2Phono jack (E63-1244-08)x2Phono jack (E63-1271-08)Conn-speaker (E70-0165-08)Phono jack (E63-1274-08)x2Optical input jack (W02-2934-08)Phone jack (E11-0957-08)S-video jack (E56-0045-08)RCA jack (E63-1272-08)DIN socket (E56-0046-08)RadioFans.CN 收音机爱 好者资料库DVR-50702CONTENTS / ACCESSORIES / CAUTIONSCO

5、NTENTS / ACCESSORIES / CAUTIONS. 2BLOCK DIAGRAM .3CIRCUIT DESCRIPTION.4WIRING DIAGRAM.9PC BOARD .10SCHEMATIC DIAGRAM . 15EXPLODED VIEW .28PARTS LIST.29SPECIFICATIONS .Back coverContentsFM indoor antenna (1)(T90-0882-08) Loop antenna(1)(T90-0896-08)Video cord(1)(E30-1427-08)Speaker cord(5)(E30-7271-0

6、8): RED(E30-7272-08): WHT(E30-7273-08): GRN(E30-7274-08): GRY(E30-7275-08): BLUBatteries (LR03/AAA)(2)Remote control unit (1)(A70-1582-08) Caution on condensationCondensation (of dew) may occur inside the unit when there isa great difference in temperature between this unit and the out-side.This uni

7、t may not function properly if condensation occurs. Inthis case, leave the unit for a few hours with the power left ON,and restart the operation after the condensation has dried up.Be specially cautious against condensation in a followingcircumstance:When this unit is carried from a place to another

8、 across a largedifference in temperature, when the humidity in the room wherethis unit is installed increases, etc.Stored contents which arecleared in at least a week afterpower plug is unplugged frompower outlet.Amplifier sectionLast input selectionVolume control valueSurround settingTuner sectionR

9、eceiving bandFrequencyPreset stationsTuning mode settingDVD sectionMenu setupPower statusMemory backup functionNote related to transportation and movementBefore transporting or moving this unit, carry out the fol-lowing operations.1Remove the disc from the unit.2Press the 6 key.3Wait a few seconds a

10、nd turn the unit OFF.Operation to resetThe microcomputer may fall into malfunction (impossibility tooperate, erroneous display, etc.) when the power cord is un-plugged while power is ON or due to an external factor. In thiscase, execute the following procedure to reset the microcom-puter and return

11、it to normal condition. Please note that resetting the microcomputer clears thecontents stored in and returns and to condition when it leftthe factory.Set the POWER switch to ON (set to Standby mode).Then press the key, 4 key and STOP key in thisorder.CautionsAccessoriesRadioFans.CN 收音机爱 好者资料库Cautio

12、nsDVR-50703BLOCK DIAGRAMD GND6dB6dBC-VIDEODVDS-VIDEO6dB6dBDVDAGND-5.6V+5.6VCOMPOSITER(CR)B(CB)G(Y)CY+5.6V-5.6VAGNDR(CR)B(CB)G(Y)CYCVBSFROM SYSTEM u-COM27MHzDAC MCLKAGNDMGNDDGND+5.6VSPDIFDGNDMGND+5VAAGND+12VA-5VA+3.5V+2.5V+5V+5.5VS+9VM+12VMtoDVD & VIDEOGNDP/C5.5VSP/Dto FRONTLPFLPFLPFLPFLPFLPFINPUT12.

13、28MHzSDATAN1SWCTSRSLFRFLDVDFROM SYSTEM u-COMSWCTSRFRSLFLSWCTSRSLFRFLFLGNDFRSRGNDSLCENTERDC PROTECTIONCHGNDAM OSCFM OSC224DGNDAGNDTUNER-LTUNER-Rto u-COMAGNDBUFFERRDS DATA/CLKGNDGND745612312312F201RY201ST-BY +5VAC INPUT FOR SMPSAC2AC1+VEE/S1VDD/S1+-15V+15VAC1+AC2OUTGNDINFL ACFL AC+3.3V+5V+FUNCTIONSECT

14、IONCONTROLSECTIONVOLUME/TONETUNERDVDCONTROLLEDCE,CLK,DATA4094+5VA/D INPUTP/CRDS DATA/CLKPOWER DOWNTO SMPSDETECTDCPROTECTDGNDHEADPHONEDETECTH MUTE17dBW/FMUTEC/SMUTESUB WOOFERGNDGNDAUX(FRONT)SAT/CABLEVCR OUTVCR INMONITORMONITORVCR OUTSAT/CABLEVCR INAUX(FRONT)VIDEOSWITCHINGAUDIOOUTPUTIC201MPEGPROCESSOR

15、SDRAMFLASHEEPROMADCMECHANISMCONTROLLOADPLL ICDACAUDIO-IC1SECTIONDVDSMPS FORDVD & VIDEOFOR DVDAC INPUTAUX(F)VCROPTICALVCROPTICALOUTPUTDIGITAL INPUT(OPTICAL)DIRPROCESSORSURROUNDADC &DACIC5IC1IC14IC11,12IC84VOLUME &MASTERTONECIRCUITIC88(1/2)IC88(2/2)IC87(1/2)IC87(2/2)IC86(1/2)IC86(2/2)IC101SPKRRLY101IC

16、104RLY102SPKRIC103RLY103SPKRJACK101-CJACK101-AJACK101-BGNDAM LOOPFM75ANTENNAAM RFFRONT-ENDFMIF AMPFM/AMDECODERRDSIF+MPXPLLTUNER MODULEVCR INVCR OUTAUX/FRONTSAT/CABLEIC75IC10AUDIOSWITCHCN113CN121CN206AC INPUTSTAND -BYCONTROLQ201D70IC501SYSTEM u-COMFL431FL DISPLYIC431REGISTERSHIFTFRONT KEYFUNCTIONHP40

17、1PROTECTIONQ402,Q407HEAD-PHONEIC85HEADPHONEAMPVIDEO INPUTQ84,85REC OUTREC OUTDIGITALINDATADATADIGITALDATACABLESAT/DIGITALOUTOUTOUTIC3(4/4)IC3(1/4)IC2(2/4)IC2(1/4)IC1IC2(4/4)PRE AMPIC102IC105J1SUBPRE OUTWOOFERSAT/CABLE(COAXIAL)DIGITAL INPUTTVQ76,Q77,THERMALFAN CONTROLCIRCUITPROTECTION &SURROUNDDSP BD

18、IC70IC71IC73IC72DVR-5070ACTIVEEQ BDDVR-50704CIRCUIT DESCRIPTIONPort No.Port NameI/ODescription1GRID2OFIP GRID2GRID1OFIP GRID3NC-CONNECTED TO VDD4POWER DOWNIPOWER DOWN CHECK 5RDS CLKIRDS CLOCK 6DVD RXIDVD UART INTERFACE (RX)7RDS OPTION-NC (CONNECTED TO GND)8RMCIREMOTE CONTROLLER SIGNAL9RDS DATAIRDS D

19、ATA10SM7346 CLKOVOLUME IC (IC84) CLOCK 11SM7346 DATAOVOLUME IC (IC84) DATA 12ENCODER UPIENCODER (1) SIGNAL13ENCODER DWIENCODER (2) SIGNAL14DVD TXODVD UART INTERFACE (TX)15DVD RSTODVD RESET16DSP A. BOOSTODSP AUTO BOOT 17H/P CHKIHEADPHONE CHECK 18CS8415A-CEODIR IC (IC14) CHIP ENABLE 19EMPHASISOCS4228

20、DAC IC EMPHASIS ON/OFF 20TUNEDITUNED SIGNAL 21DSP INTREQODSP INT REQUEST 224094CEOIC431 CHIP ENABLE 23CS49326 CEOCS49326 DSP IC (IC5) CHIP ENABLE 24CS4228 CEOCS4228 DAC IC (IC1) CHIP ENABLE 25DSP CLKOCS49326 DSP IC (IC5) CLOCK 26CS49326 DATA INICS49326 DSP IC (IC5) DATA 27DSP DA OUTOCS49326 DSP IC (

21、IC5) DATA 28VREFIA/D REFERENCE (5V)29PROTECTIAMP PROTECTION IN30KEY INIA/D KEY 31EEPROM DATAI/OEEPROM (IC502) DATA32EEPROM CLKOEEPROM (IC502) CLOCK338415 DA INICS8415 DIR IC (IC14) DATA 34DVD OPTIONIMODEL DISCRIMINATION35PLL DATA INIPLL DATA 36STEP OPTIONITUNER STEP OPTION 37VSSIAVSS (ANALOG GND)38R

22、STIRESET(LOW ACTIVE)39EXTALIX-TAL IN(10MHz)40XTALOX-TAL OUT(10MHz)41GND-VSS (DIGITAL GND)42NCOUNUSED43GND-GND44VDDIVDD (DIGITAL VDD)45VFDPIVFDP (FIP PULL DOWN POWER -30V)46STANDBYOSTANDBY (POWER RELAY ON/OFF)47SPK RELAYOSPEAKER RELAY ON/OFF48SUB ON/OFFOSUB WOOFER GAIN CONTROL49CS8415 RSTOCS8415 (IC1

23、4) RESET50PLL CEOPLL CHIP ENABLE51PLL CLKOPLL CLOCK52PLL D OUTOPLL DATA 53A CLKOCOMMON CLOCK(LC7821,BU4094)54A DATAOCOMMON DATA(LC7821,BU4094)5559VIDEO (SW1SW5)OVIDEO SW (15)1. Port Description of System Microcomputer : CXP828XX(IC501)DVR-50705CIRCUIT DESCRIPTIONPort No.Port NameI/ODescription604228

24、 RSTOCS4228 (IC1) RESET61LC7821 CEOLC7821(TUNER PACK) CHIP ENABLE62SM7346 CEOSM7346 (IC84) CHIP ENABLE63T MUTEOTUNER MUTE64C/S MUTEOCENTER/SURROUND SIGNAL MUTE65NCOUNUSED66W/F MUTEOFRONT/SUB WOOER SIGNAL MUTE67LIMITEROUNUSED68CS49326 RSTOCS49326 DSP IC (IC5) RESET6971DSP (A15A17)ODSP ROM ADDRESS (SE

25、L 13)7288SEG (117)OFIP SEGMENT 89VDD-VDD (DIGITAL VDD)90,91SEG18,19OFIP SEGMENT 92-100GRID (113)OFIP GRID Port No.Port NameI/OMainAlternate functionFunctionInputOutputAudio DAC51DAC SCLKOOver sampling clockEXT AUD CLOCK52DAC PCMOUT0OPCM out 0EXD AUD DATA53DAC PCMOUT1-PCM out 1 (unused)EXT AUD REQ54D

26、AC PCMOUT2-PCM out 2 (unused)55DAC PCMCLKI/OPCM clock56DAC LRCLKOLeft/Right clockEXT AUD WCLK57SPDIF OUTOSPDIF out48VDD PCM-VDD(+3V3)49VSS PCM-GNDClock & Reset124RESETIChip reset122VDD PLL-VDD PLL123VSS PLL-GND120PIX CLKI27MHz main clockPIOs and communication186PIO0(0) T STROBEI/OPIO0(0)UART0 data18

27、7PIO0(1) MOD SWI/OPIO0(1)ATAPI RD188191PIO0(2)PIO0(5) OUnusedPIO0(6) SLIDER SENSOR192OPEN/CLOSEI/OPIO0(6)(DRAWER POSITION)193PIO0(7) SLIDER IN(DRAWER CCW/CTRL)I/OPIO0(7)194PIO1(0) SDAI/OPIO1(0)SSC0 data(MTSR out/MRST in)195PIO1(1) SCLI/OPIO1(1)SSC0 clock196PIO1(2) SLIDER OUT(DRAWER CW CTRL)I/OPIO1(2

28、)PARA DVALID197PIO1(3) TXD(JIG)I/OPIO1(3)UART2 TXD200PIO1(4) RXD(JIG)I/OPIO1(4)UART2 RXD201PIO1(5) FRONT TXDII/OPIO1(5)PARA SYNCUART1 RXD202TRIGGER INI/OTrigger in for DCU203TRIGGER OUTI/OTrigger out for DCU204PIO2(0) H/P IND-Unused205PIO2(1) FRONT RXDI/OPIO2(1)PARA SYNC206PIO2(2) -Unused207PIO2(3)

29、-Unused2. Port list sorted by function for MPEG Processor IC(Main IC201)DVR-50706CIRCUIT DESCRIPTIONPort No.Port NameI/OMainAlternate functionFunctionInputOutput208PIO2(4) AUDIO MUTEI/OAudio mute1PIO2(5) RGB SEL(BLANK)I/ORGB sel.(blank)Unused2PIO2(6) VIDEO MUTEI/OVideo mute3PIO2(7) 16: 9 INDICATORI/

30、O16 : 9 indicator(Unused)6PIO3(0) SCART H(TV/AUX)I/OPIO3(0) UnusedPARA DATA(0)7PIO3(1) I/OPIO3(1) UnusedPARA DATA(1)8PIO3(2) I/OUnusedPARA DATA(2)9PIO3(3)I/OUnusedPARA DATA(3)/CAPTURE IN010PIO3(4) IR REMOCONI/OUnused11PIO3(5)I/OUnusedPARA DATA(5)/CAPTURE IN2UART2 RTS(RTS2)12PIO3(6)I/OUnusedPARA DATA

31、(6)/UART1 CTS(CTS1)COMP OUT113PIO3(7) DVD RESETI/OPIO3(7)PARA DATA(7)/UART2 CTS(CTS2)COPM OUT039PIO4(0)HP MUTE-Unused40PIO4(1)-Unused41PIO4(2)-Unused42PIO4(3) DAC RESET-Unused43PIO4(4) PLL CS-Unused44PIO4(5) DAC CLOCKODAC clock45PIO4(6) DAC DATAODAC data46PIO4(7) DAC CSI/OPIO4(07)YC(07)Reserved20B W

32、CLKI/OUnused21B V4I/OUnused22NRSS OUTI/OUnused103ADC SCLKI/OUnused104ADC LRCKI/OUnused105ADC DATAI/OUnused106ADC PCMCLKOUnusedEMI Interface161170CPU ADR(110)OADR(110)173183CPU ADR(1121)OADR(1121)141148CPU DATA(07)I/ODATA(07)151158CPU DATA(815)I/ODATA(815)138CPU RAS1I/OUnused131CPU WAITIConnected to

33、GND130CPU RWOUnused128CPU BE(0)OBYTE 0 ENABLE129CPU BE(1)OBYTE 1 ENABLE139CPU CAS0OUnused140CPU CAS1OUnused135CPU CE(0)OUnused134CPU CE(1)OUnused133CPU CE(2)OChip Sel. BANK2132CPU CE(3)OChip Sel. BANK3118CPU PRO CLKOSDRAM clock117CPU OEI/OOutput enableInterrupt127IRQ(0)IUnused126IRQ(1)IUnused125IRQ(

34、2)IIRQ(2) (MD IRQ)DVR-50707CIRCUIT DESCRIPTIONPort No.Port NameI/OMainAlternate functionFunctionInputOutputTimers116PWM0I/OUnusedHSYNC115PWM1I/OPulse width modula oBoot from ROM3114PWM2I/OUnusedVSYNCJTAG113TCKITest clock112TDIITest data in111TDOOTest data out110TMSITest mode select109TRSTITest reset

35、Front-end16B DATAI12S dataSER Data17B BCLKI12S bit clockSER BCLK18B FLAGI12S error flag DVDSER VALID19B SYNCI12S selector/ABS timeSER SYNCVideo DAC27,26,25R/G/B (OUT)OR/G/B output3234Y/C/CV (OUT)OY/C/CV output29I REF RGII REF DAC RGB28V REF RGIV REF DAC RGB36I REF YCII REF DAC YC35V REF YCIY REF DAC

36、 YC23VDD RGB-YDDA RGB =2.5V24VSS RGB-GND30VDD YCC-YDDA YCC =2.5V31VSS YCC-GNDShared memory interface6966SMI ADR(03)OAddress bus SDRAM5863SMI ADR(49)OAddress bus SDRAM7073SMI ADR(1013)OAddress bus SDRAM8493,SMI DATA(015)I/OData bus SDRAM9710274,75SMI CS(0,1)OChip select bank 0,176SMI RASORAS SDRAM77S

37、MI CASOCAS SDRAM78SMI WEOSDRAM write enable79,80SMI (DQML, DQMU)ODQ MASK EN LOW, UP82SMI CLKINISDRAM clock in95SMI CLKOUTOSDRAM clock outPower supply4,47,81,107136,159,184VDD3 3-3.3V Power supply14,37,64,94119,149,171VDD2 5-2.5V Power supply1985,15,38,50,6583,96,108,121137,150,160VSS-GND172,185,199D

38、VR-50708CIRCUIT DESCRIPTIONPort No.Port NameI/OFunction1,2VCC1,2-VCC2,6,9VIN,VIN (1,2)IVideo input (Composite or Y)3YC MIX-YC MIX select (Unused)4CINICroma input (Open)5CLP-Clamp select (Connected to GND)7,8MUTE (1,2)OMute select (Unused)10GND-GND11,13CbIN, CrINIComponent input12Dual/Single-Power se

39、lect (+5V)14,15,19,21,22,24VEE1, VEE2-VEE (-5V)16,18,20, CrOUT, CbOUT, YOUT2,23,25,27YOUT1, COUT,VOUTOVideo output23,25,27YOUT1, COUT,VOUTOVideo output (Open)17,26PS2,PS1-Power save (Connected to GND)3. Port Description of Ics3-1 Video Driver : MM1540AF (U1)Port No.Port NameI/ODescription1BCKIAudio

40、data bit clock input.2DATAIAudio data digital input.3LRCKIL-channel and R-channel Audio data latch enable input.4DGND-Digital groung.5VDD-Digital power supply (+3.3V).6VCC-Analog power supply (+5.0V).7VOUTLOAnalog output for L-channel.8VOUTROAnalog output for R-channel.9AGND-Analog ground.10VCOM-Com

41、mon voltage decoupling.11ZEROR/ZEROAOZero flag output for R-channel /Zero flag output for L/R channel. (Unused)12ZEROL/NAOZero flag output for L-channel /No assign. (Unused)13MDIMode control data input.14MCIMode control clock input.15MLIMode control latch input.16SCKISystem clock input.3-2 Digital t

42、o Analog Converter : PCM1748 (DVD PCB)DVR-50709WIRING DIAGRAMu-COM BDMAIN BDFRONT BDSTANDBYLED BDLEDDISPLAY BDFRONTVIDEOINPUT BDDVD BDMECHAF/E BOARDPOWER BDSMPS BDDSP BDPACKTUNERHEADPHONEBDACTIVE EQ BDDVR-5070SUB WOOFERPRE OUT JACK BDCP506CP531CP431CP106CP108CP107CP104CP508CP507CP504CP532CP432CN435C

43、N535CP533CP433CP534CP434JA401VIDEORLJA402S VIDEOCP208JA552AOUTJA555BJA554BJA553BMONITORSATINVCROUTJA552BVCRMONITOROUTOUTINVCRVCRSATININCP505CP204CN201CP201CN201CP201CN204AC INPUTCN113CN121CN206CP206CP121CP113CP203CN205YINVCROUTVCRRchCrCbJACK103LchRchJACK102/104SATINAUDIOLchRchLchJACK101-AJACK101-BJA

44、CK101-CLchRchFRONTREARRchLchSUB WOOFERCENTERCP1JAC4JAC5JAC1OPTI-OUTHP401JK403OPTI-INCP3CP103CN103CP2CN2CP114C1CP115CN2CP401CN4CN1CP402CN3CP608CN202CN403CP403CP501CN401CN501CP202SW201CN207CN204CN3CN1CN4CP105CN601WH1CN205J1FAN MOTORMTHERMISTORCN3CN2CN1COAX-IN 1OPTI-IN 1VCRVCRJAC2SAT/CABLEOPTI-IN 2JAC3

45、SAT/CABLECOAX-IN 2DOWN LOAD JIGJTAG TESTCONNECTIONJA554AJA553AJA555A1121218811131311661111111133331122111313131321111919441111191912F20171311212137115112111721151513131131131111111111111111111111111211011011722111151214141212141313141122112FFFFFFFFFFFFACEGIBDFHJ2135746C89C88C86R407R402R404R411R408C1

46、5CR26CR27CR527R528R59LR59RR46RR49LR49RR48LR44LR44RR45RR45LR46LC24LR47LR91R509C518R510R511R512R24CR27FRR524R525R505C510C511C513R507R26FRC15FRR521R522R24FLC15FLR27FLR520C537C15SRR27SRR530R531R514R516R26SLC526R513R515C529C527R701R93J26R4RC2RC1LC1RC2LR3LR5RC3R1224423C3LR5LC602R602C601R604R603R601R109R10

47、8C117R97J273R57RR58RR58LJ23C5LC4LR6RR7RR99R98J22J19R20CR20SWR21SWC10SWC25SWJ17C10CR20SRR21SRC10SRJ20C10SLC10FRR20FLC10FLR21FLJ21C25SRC25CJ15C25SLC25FRJ13R22SLR22SRR22CR22SWR23SWC11SWR16SWR16CC13SWR25SWR23CC11CR23SRC11SRR16SRR16SLR23SLC11SLC13FRC13SLC13SRC13CR26SWR37SWC13FLC11FLR23FLR16FLR22FLR16FRC2

48、5FLR112R110C85R703R25FRR501R519R24SLR37SRR24SRR107C111R106C112C6LR4LC15SWC519R140R48RC5RC6RR21SLC146C24RR47RC115R92R605R704R25SLR3RC116C145R38SLR38SRR38FLR38CR702J460R506R508C502R503J462R26FLR533R534R517C534R518R504R502C503J461C505C535R26SRC15SLR27SLR1RR2RR2LR1LR607R606R25SRR24FRR37FRR25CR37CR414R41

49、5R406R416R410R412R403C11FRR23FRR22FRR20FRR21FRR57LR21CR111R125C98R95C97R96C99R6LR7LR20SLR25FLC521R38FRC4RR24SWR401R409BEE BE BE BE BE BE BE BE BE BE BQ403Q405Q406Q402Q407D702IC84Q2SWQ2CQ2SRQ2SLQ2FLD703Q2FRREDBLUEJ405J406J467J425CP104C52LJ458J145J432J433J414J418J444R70R71R72R73J466J453C52RC22SRC533C1

50、4FLJ419J63C70J79J80J47J48C7RC7LJ107J106J126J125J141J123C14CC12FRC509C520C522C545R529C12CC517J450C14FRC546C543R526C544C512C514J132J133J134J135J445J9J115C516C515C508J420C507J430J452J434J421J422C539C532C540C531C5234158C524J417C71J100J423J424J426J427J451J4361121151114211511511514214214J446C542C541C504C5