Kenwood-DVF3050-cd-sm 维修电路原理图.pdf

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1、DVD / CD PLAYERDV-502/503/DVF-3050DVF-3050-S/3550/3550-SSERVICE MANUAL 2001-5/B51-5731-00 (K/K) 347070%In compliance with Federal Regulations, following are repro-duction of labels on, or inside the porduct relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegula

2、tions No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlockdefeated. AVOID DIRECT EXPOSURE TO BEAM.Caution : No connection of ground line if disassemble the unit. Please connect the ground line onrear panel, PCBs, Chassis and some others.* Refer to parts list o

3、n page 18 . Front Panel *(A60-)AUDIO OUTPUTCOMPONENTVIDEO OUTPUTVIDEO OUTPUTS-VIDEODIGITAL OUTPUT(PCM/BIT STREAM)OPTICALCOAXIALLRCrCbYWindow *(B10)AC power cord bushing (J42-0350-08)Button(PLAY) *(K27-)Button(SKIP) *(K27-)Button *(K27-)Button(POWER) *(K27-)Top cover *(A01-)AC power cord *(E30-)RCA j

4、ack (E63-1227-08)RCA jack (E63-1226-08)RCA jack *(E63-)RCA jack (E63-1191-08)RadioFans.CN 收音机爱 好者资料库Cord RCA 1p(E30-7235-08)Cord RCA 3p(E30-2990-08)Remote control unit (1)(A70-1532-08)Batteries (R03/AAA) (2)*AC plug adaptor (1)(E03-0115-05)* Use to adapt the plug on thepower cord to the shape of the

5、wall outlet.(Accessory only for regionswhere use is necessary.)Note related to transportation and move-mentBefore transporting or moving this unit, carry out the follow-ing operations.1. Set the POWER key to ON without loading a disc.2. Wait a few seconds and verify that the display shownappears.3.

6、Set the POWER key to OFF.Beware of condensationWhen the difference between the internal temperature of the unitand external atmosphere is large, dew (mist) may be produced onthe internal parts of the unit. In such a case, turn the unit ON andleave it for a few hours until the condensation has dried

7、up.Be especially careful in the following conditions:When the unit is brought into a place where there is a large differ-ence in temperature between the previous location, when thehumidity of the listening room is high, etc.Operation to resetThe microprocessor may fall into malfunction (impossibilit

8、y to oper-ate erroneous display, etc.) when the power cord is unpluggedwhile power is ON or due to an external factor. In this case, exe-cute the following procedure to reset the microprocessor andreturn it to normal condition.1 In POWER ON condition, keep the 7 (STOP) key and the (Search) key press

9、ed at the same time.2 When both keys are pressed, the region code of the unit, thesoftware version, etc. will be displayed on the display. (Whennothing is done, the display of this information continues.)Example: 71 . 101 . 06:143 Press the ON/OFF key to go to Power OFF.4 When Power ON is performed

10、with the ON/OFF key, the set-tings become the default factory settings. Please note that resetting the microprocessor clears the con-tents stored in, it returns the microprocessor to the conditionwhen it left the factory.CautionsDV-502/503/DVF-3050/35502CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / AC

11、CESSORIES / CAUTIONS. 2DISASSEMBLY FOR REPAIR.3BLOCK DIAGRAM .4CIRCUIT DESCRIPTION.5WIRING DIAGRAM.10PC BOARD . 11SCHEMATIC DIAGRAM . 15EXPLODED VIEW .21PARTS LIST.22SPECIFICATIONS .Back coverContentsAccessoriesAttentionPlease contact our KENWOOD Service Department in your side if you want the servi

12、ce information; Circuit Description. FullDescribed Parts list and so. Information is available to you by internet from us.RadioFans.CN 收音机爱 好者资料库DV-502/503/DVF-3050/35503DISASSEMBLY FOR REPAIRHow to Remove Disc in unitSlide the lever of the mechanism from bottom side asfigure if you cant get the dis

13、c on the tray.The marking is located on the rear panel and says thatthe component uses laser beams that have been clas-sified as Class 1. It means that the unit is utilizing laserbeams that are of a weaker class. There is no danger ofhazardous radiation outside the unit.CLASS 1LASER PRODUCTThe marki

14、ng of products using lasers(Except for some areas)CAUTIONSADDRF-WEF-RESETF-DED-RAS0-ADDRRDNOTWRDATAD-CAS0-D-CAS1-+3.3V DIGITAL VCCF/E SDATAEXIT-DATA+3.3V-RESETF/E SCLEXIT-BCLKEXIT-DATAVALIDEXT-PSTART/ERROR+12V MOTOR VCC+8V MOTOR VCC+5V DIGITAL VCCSLIDER-IN(DRAWER-CCW-CTRL)SLIDER-OUT(DRAWER-CW-CTRL)S

15、LIDER-OPEN/CLOSE(POWER-POSITION-P1)+12V ANALOG VCC+8V ANALOG VCC+5V DIGITAL VCC-8V ANALOG VCC+12V MOTOR VCC5V FRONT+8V MOTOR VCC+3.3V DIGITAL VCC: AC240V 50Hz: AC230V 50Hz(X)(T,E): AC110-120V/220-240V: AC120V 60Hz50/60Hz(K,P)(Y,M)F-CEF-OE(DRAM OE)-27VFL ACFL AC+5VSSTBY ON/OFF CNTLIR REMOCON+5.6VSVFD

16、 DATA OUTVFD STBVFD DATA INPCM1748E-DATALRCLKBCKPCMCLKPCM1748E-CSPCM1748E-CLKAUDIO-MUTECVBS-OUTY-OUTR(Cr)-OUTC-OUTB(Cb)-OUTG(Y)-OUT910867SPDIFPIXCLK-27MHzSCLSDAVIDEO-MUTEVFD CLKDATAIRQ2POWER CTLL AUDIOR AUDIOGNDBLUE-OUTGREEN-OUTRED-OUTCVBS-OUTL-CH OUTR-CH OUTIC201STI5519FLASH MEMORYIC4018MBITM29F400

17、T-90N1HY57V651610BLTC-8SDRAM-64MBITIC301F/E & MECHATVM MECHASMPSIC901UPD16311DACPCM1748EL.P.FBA4560IC802-A-AMIXEDMUTEVIDEOJK803-AS-VIDEOJK701CrCbYRCA 3VCOAXIALBUFFEROPTICALIC50174HCU04M24CO2EEPROMIC202SCART PARTRCA PARTHNV-06SS74FL125MHzL.P.FMIXEDR-CHL-CHTRBUFFER& B.N.F.& B.N.F.BUFFERTR& B.N.F.BUFFE

18、RTR& B.N.F.BUFFERTR& B.N.F.BUFFERTR& B.N.F.BUFFERTRCVBS-OUTY-OUTC-OUTR(Cr)-OUTB(Cb)-OUTG(Y)-OUTCVBS-TV SCARTJK804ONLY(E,T) TYPE(E,T) TYPEEXCEPTDIGITAL OUTMPEGDV-502/503,DVF-3050DV-502/503/DVF-3050/35504BLOCK DIAGRAMDV-502/503/DVF-3050/35505CIRCUIT DESCRIPTIONNote: Port list sorted by function for MP

19、EG ICPort No.Port NameI/OMainAlternate functionFunctionInputOutputAudio DAC51DAC SCLKOOver sampling clockEXT AUD CLOCK52DAC PCMOUT0OPCM out 0EXT AUD DATA53DAC PCMOUT1-PCM out 1 (unused)EXT AUD REQ54DAC PCMOUT2-PCM out 2 (unused)55DAC PCMCLKI/OPCM clock56DAC LRCLKOLeft/Right clockEXT AUD WCLK57SPDIF

20、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 data187PIO0(1) MOD SWI/OPIO0(1)ATAPI RD188PIO0(2) VFD STBI/OPIO0(2)ATAPI WR189PIO0(3) VFD CLKI/OPIO0(3)190P

21、IO0(4) VFD DATA OUTI/OPIO0(4)191PIO0(5) VFD DATA INI/OPIO0(5)PIO0(6) SLIDER SENSOR 192OPEN/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

22、(2)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 INDI/OUnused205PIO2(1) FRONT RXDI/OUnused206PIO2(2) MIC IN-Unused207PIO3(8)

23、MIC OUT-Unused208PIO2(4) AUDIO MUTEI/OAudio mute1PIO2(5) RGB SEL(BLANK)I/ORGB sel.(blank)2PIO2(6) VIDEO MUTEI/OVideo mute3PIO2(7) 16: 9 INDICATORI/O16 : 9 indicator6PIO3(0) SCART H(TV/AUX)I/OPIO3(0)PARA DATA(0)7PIO3(1) POWER CTLI/OPIO3(1)PARA DATA(1)8PIO3(2) I/OUnusedPARA DATA(2)9PIO3(3)I/OUnusedPAR

24、A DATA(3)/CAPTURE IN010PIO3(4) IR REMOCONI/OPIO3(4)PARA DATA(4)/CAPTURE IN1UART1 RTS(RTS1)11PIO3(5)I/OUnusedPARA DATA(5)/CAPTURE IN2UART2 RTS(RTS2)12PIO3(6)I/OUnusedPARA DATA(6)/UART1 CTS(CTS1)COMP OUT11. MPEG: STI5519DV-502/503/DVF-3050/35506CIRCUIT DESCRIPTIONPort No.Port NameI/OMainAlternate func

25、tionFunctionInputOutput13PIO3(7) DVD RESETI/OPIO3(7)PARA DATA(7)/UART2 CTS(CTS2)COPM OUT03946PIO4(07)I/OPIO4(07)YC(07)Reserved20B WCLKI/OUnused21B V4I/OUnused22NRSS OUTI/OUnused103ADC SCLKI/OUnused104ADC LRCKI/OUnused105ADC DATAI/OUnused106ADC PCMCLKOUnusedEMI Interface161170CPU ADR(110)OADR(110)173

26、183CPU ADR(1121)OADR(1121)141148CPU DATA(07)I/ODATA(07)151158CPU DATA(815)I/ODATA(815)138CPU RAS1I/OUnused131CPU WAITIConnected to GND130CPU RWOREAD NOT WRITE128CPU BE(0)OBYTE 0 ENABLE129CPU BE(1)OBYTE 1 ENABLE139CPU CAS0ODRAM CAS0140CPU CAS1ODRAM 135CPU CE(0)ODRAM RAS0134CPU CE(1)OChip Sel. BANK113

27、3CPU CE(2)OChip Sel. BANK2132CPU CE(3)OChip Sel. BANK3118CPU PDR CLKOSDRAM clock117CPU OEI/OOutput enableInterrupt127IRQ(0)IUnused126IRQ(1)IUnused125IRQ(2)IIRQ(2) (MD IRQ)Timers116PWM0I/OUnusedHSYNC115PWM1I/OPulse width modula oBoot from ROM3114PWM2I/OUnusedVSYNCJTAG113TCKITest clock112TDIITest data

28、 in111TDOOTest data out110TMSITest mode select109TRST4ITest resetFront-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 RGB28

29、V REF RGIV REF DAC RGBDV-502/503/DVF-3050/35507CIRCUIT DESCRIPTIONPort No.Port NameI/OMainAlternate functionFunctionInputOutput36I REF YCCII REF DAC YCC35V REF YCCIY REF DAC YCC23VDD RGB-YDDA RGB =2.5V24VSS RGB-GND30VDD YCC-YDDA YCC =2.5V31VSS YCC-GNDShared memory interface6966SMI ADR(03)OAddress bu

30、s SDRAM5863SMI ADR(49)OAddress bus SDRAM7073SMI ADR(1013)OAddress bus SDRAM8493SMI DATA(015)I/OData bus SDRAM9710274,75SMI CS(0,1)OChip select bank 0,176SMI RASORAS SDRAM77SMI CASOCAS SDRAM78SMI WEOSDRAM write enable79,80SMI DQML, UODQ MASK EN LOW, UP82SMI CLKINISDRAM clock in95SMI CLKOUTOSDRAM cloc

31、k outPower supply4,47,81,107136,159,184VDD3 3-3.3V Power supply14,37,6494,119,149VDD2 5-2.5V Power supply171 1985,15,38,5065 83,96108,121,137 VSS-GND150,160,172185,199Pin No.Pin NameI/ODescription6DINIInputs serial data at rising edge of shift clock,starting from lower bit.5DOUTOOutput serial data a

32、t falling edge of shift clock,starting from lower bit.This is N-ch open-drain output pin.9STB-Strobe pin.8CLKIReads serial data at rising edge, and output data at falling edge.52OSC-Connect resistor for determining oscillation frequency to this pin.1526S1/KS1S12/KS12OSegment output pins (Dual functi

33、on as key source).4439G1G6OGrid output pins.2732S13/G16S18/G11OThese pins are selectable for segment or grid output.35,36S19/G11,S20/G195046LED1LED5OUnused.1013KEY1KEY4IData input to these pins is latched at end of display cycle.14NC-Unused.14,33,45VDD-+5V power supply.51VSS-Connect this pin to GND

34、of system.34VEE-35V power supply.7NC-Unused.2-1 VFO controller : uPD16311(IC901)DV-502/503/DVF-3050/35508CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription1BCKIAudio data bit clock input.2DATAIAudio data digital input.3LRCKIAudio data latch enable input.4DGND-Digital ground.5VDD-Digital power supply (

35、+3.3V).6VCC-Analog power supply (+5V).7VOUTLOAnalog output for L-channel.8VOUTROAnalog output for R-channel.9AGND-Analog ground.10VCOM-Common voltage decoupling.11ZEROROZero flag output for R-channel.12ZEROLOZero flag output for L-channel.13MDIMode control data input.14MCIMode control clock input.15

36、MLIMode control latch input.16SCKISystem clock input.2-2 D/A Converter : PCM1748(IC801)Pin No.Pin NameI/ODescription38CLKIThe system clock input. all other inputs are registered to the SDRAM onthe rising edge of CLK.37CKE-Controls internal clock signal and when deactivated, the SDRAM will be oneof t

37、he states among power down, suspend or self refresh.19CS-Enables or disables all inputs except CLK, CKE, and DQM.20,21BA0,BA1-Selects bank to be activated during RAS activity.Selects bank to be read/written during CAS activity.2326A0A11-Row address : RA0RA11, Column address : CA0CA72935Auto-precharg

38、e flag : A1018WE,CAS,RAS-WE, CAS and RAS define the operation.15,39LDQM,UDQMI/OControls output buffers in read mode and masks input data in write mode.2,4,5,7,8,10,11,13,42DQ0DQ15I/OMultiplexed data input/output pin.44 45,47,4850,51,539VDD/VSS-Power supply for internal circuits and input buffers.10V

39、DDQ/VSSQ-Power supply for output buffers.11NC-Unused2-3 64 Bit SDRAM : KS641632D(IC301)Block Diagram for D/A ConverterBCKSerialLRCKInputVout LDATAI/FOutput Amp andLow-pass Filter8XOversamplingEnhancedDigital FilterMulti-levelVcomMLFunctionwithDelta-SigmaFunctionModulatorMCControlControllerOutput Amp

40、 andMDII/FLow-pass FilterVout RSystem ClockSCKSystemClockManagerZero DetectPower SupplyZERO LZERO RVDDDGNDVCCAGND DAC DACDV-502/503/DVF-3050/35509CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription25, 2416, 81A0A18IAddress Inputs29,31,33,35DQ0DQ7I/OData Input/Outputs, Command Inputs38,40,42,4430,32,34,

41、36DQ8DQ14I/OData Input/Outputs39,41,4345DQ15I/OData Input/Outputs or Address input26CE-Chip Enable28QE-Output Enable11WE-Write Enable12RP-Reset/Block Temporary Unprotect15RY/BYOReady/Busy/Output47BYTE-Byte/Word Organization37VCC-Supply Voltage27,46VSS-GroundPin No.Pin NameI/ODescription1,3,5,9A0 to

42、A5IData Inputs11,132,4,6,8Q0 to Q5OData Outputs10,127GND-Ground14VCC-Positive Supply VoltageTruth TableAQLHHL2-6 Flash Memory : M29W800AT(IC401)2-4 DC Motor Driver : KA8082(ICM21)Pin No.Pin NameI/ODescription1GND-Ground2VO1OOutput 13VCTLIMotor speed control4VIN1IInput 15VIN2IInput 26SVCC-Supply volt

43、age (Signal)7PVCC-Supply voltage (Power)8VO2OOutput 2Internal Block DiagramGND18V02 DRIVER OUTVO127PVCC PRE DRIVERVCTL3TSDBIAS6SVCC LOGIC SWITCHVIN145VIN22-5 HEX Inverter (Single Stage) : M74HCU04(IC501)DV-502/503/DVF-3050/355010CP201CN204CP205CP801CP702CN806CP701CN803JK804JK803-AJK803-BCN805CN4RchL

44、chCOAXIALJK802JK801CN1CN3CN901CN902CN201CP203TEST JIGUNLOADCP202IC805OPTICAL(E,T) TYPE ONLYCP802CP204JK701CrCbYCN2POWERSWVIDEOOUTPUTVIDEO OUTPUTCOMPONENTDIGITAL OUTMCN1MSW1AUDIOOUTPUTMAIN BOARDMECHAF/E BOARDOUTPUT BOARDSCARTBOARDPOWERSUPPLY(SMPS)FRONT BOARDDV-502/503,DVF-3050129191191221129111111151

45、51121121: AC240V 50Hz: AC230V 50Hz(X)(T,E): AC110-120V/220-240V: AC120V 60Hz50/60Hz(K,P)(Y,M)127115617111511511511521112WIRING DIAGRAMABDFHJCEGI2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)87IC901R913R912FIG901FIG902C907C903C901R902142

46、627394013152R904R901R903R911C905FIG903R914R915R908R907R906R905R801R803R802R805R804R806C804R812RC812RR812LC808C829C828C827R822R858R851R849R847C870C865R861R823R824R825R811RC817RC817LR826LR887R885R877R876R838R840R864R863R836LR820R826RC812LC801R807R808R836RC803R815L812R830C806R813LR814LR811LC813LR828R82

47、7R831R819RR819LR829R886C821C835CVBSR873R874R875R882R881R880R883R844R837R842R884CYYCrCbR813RR814R1485C813RC810R821R859C867R857R853R854R855R856R852R846R848R850C859R845C868C861C863C858C856C862C855R860C871R862R817R81618BEBEBEBEBEBEBEBEBEBEBEBBEER865R872169BEIC801Q803RQ803LQ804LQ801Q802IC802Q810Q811Q805Q

48、814Q813D804D801D802Q809Q815Q808Q812C906J021FIG90L902IG ORM901C909C910J009J010L901L903J018J01761J011J005J012J013R910J003J008J007C912LG902C91121338KHZ JRC12C904C908J015J014138J016C902J006OPEN/CLOSEJ019J020FIG91FIG9217J002J004SKIP-SKIP+SEARCH+SEARCH-LG901STOPPLAY/PAUSED905CN901FRONT BOARDD906CN901D901D

49、902D903SW901D904CN902SW903SW902SW906SW907SW905SW904FL901MSW1POWERMCN1C826C825C836IG OJ860J822J825J861J867J801J831J80412J812J817J833J827J868J865C866C860C869C864C857C824L806L807L805ECECEC292822141511J81411511J832J824J823C816RVCCGOUTC811LC811RC809C805L801J813L811L803L810LRC822J859J856J864J863J853J854J8

50、28J834J835J836J837J838J840J851J849J842J850C815J803J816L809L804J830J802J829L808C816LJ819J820J821J818J815J826J808C819C820C802C807J806J807J809J810J811L857121CN805D803Q807Q804Q803CN803CN806D805JK803JK804OUTPUTVIDEOOUTPUTVIDEOOUTPUTOPTICALCOAXIALDIGITAL OUTAUDIOCOMPONENTOUTPUT BOARDIC806JK802IC805CP803JK