Kenwood-RXDV-757-Service-Manual电路原理图.pdf
70%MINI HiFi COMPONENT SYSTEMRXD-V555/V555-H/V757SERVICE MANUAL©2001-10 PRINTED IN KOREAB51-5764-00 (K/K) 404 *Refer to parts list on page 28. In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laserproduct safety.KENWOOD-Corp. certifies this equipment conforms to DHHSRegulations No.21 CFR1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.Dress ring (A21-3957-08)FRT cab ass'y *(A60-)Front glass *(B10-)Panel(VCD)(A60-2220-08)Knob(VOLUME)(K27-2470-08)Cassette lid(R)(A21-3959-08)Phone jack (E11-0942-08)Cassette lid(L) (A21-3958-08) Jack(MIC) (E11-0953-08)*Refer to page 2 if you want to know system configuration.(XD-V555/XD-757)*Knob(MIC VOLUME) (K29-8153-08)AC Plug Adaptor (1)(E03-0115-05) Use to adapt the plug on thepower cord to the shape of thewall outlet.(Accessory only for regions whereuse is necessary.) AM Loop Antenna(1)(T90-0879-08)“AA“ size battery(2)(UM/SUM-3, R6, HP-7 or similar) Remote Control(1)(A70-1574-08)FM Antenna(1)(T90-0883-08)Video Cable(1)(E30-7255-08)RXD-V555/V7572CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES.2EXTERNAL VIEW.3ADJUSTMENT.7PC BOARD.8SCHEMATIC DIAGRAM.16EXPLODED VIEW.26PARTS LIST.28SPECIFICATIONS.Back coverContentsAccessoriesSYSTEMMAIN UNITDESTINATIONSPEAKERXD-V858RXD-V757MILS-N90VSXD-V757RXD-V757MILS-N70VSXD-V555RXD-V555MILS-N50VSXD-V555-HRXD-V555-HMLS-N50VS-HSystem ConfigurationsThe marking of products using lasers(Except for some areas)The marking is located on the rear panel andsays this product has been classified as Class1. It means that there is no danger of hazard-ous radiation outside the productCLASS 1LASER PRODUCTCautionsRXD-V555/V7573EXTERNAL VIEWANTENNAAM LOOPFM75VIDEO/AUXVIDEOOUTSPAN SELECTOR230V240VFM 50kHz AM 9kHz FM 100kHz AM 10kHz +-LSPEAKERSRATED SPEAKER IMPEDANCE:6 OHMS MIN.RLRCabinet(TOP) (A02-3014-08)AC power cord (E30-7227-08)RCA socket(E02-0021-08)Lock terminal board(E70-0144-08) FM Antenna (E70-0145-08)Switch(S62-0086-08)Pin jack(E63-1219-08)AC power cord bushing (J42-0338-08)Pin ass'y (E40-8933-08)RXD-V252/V252-H4CIRCUIT DESCRIPTIONBlock Diagram for MPEG1 Video/Audio Processing RAS#ProcessorLA(17:0)DRAM InterfaceDA(8:0)InterfaceLD(7:0)HuffmanDBUS(15:1)LCS3#, LCS#(1:0)RISCDecoderDOU#DRAMLWR#Processor2Kx32 ROMDWE#LOE#2x32 SRAMCAS#ACLKAUX(7:1)AUXSerialATCLKMPEGAudioAINSerial AudioProcessorInterfaceAOUTInterfaceARFS64x32 ROMYUV(7:0)ATFS32x32 SRAMPCLK2XScreenARCLKRegistersVideo OutputPCLK VSYNCHSYNCTDMSEL-PLL(1:0)TDMInterfaceTDMCLKInterfaceOn ScreenTDMDRDisplayCPUCLKMiscTDMFSDRAM DMARESET#ControllerPort No.Port NameI/OFunction1,31,51VCC3-Supply voltage for 3.3V.2RAS#ODRAM row address strobe (active low).3DWE#ODRAM write enable (active low).412MA(08)ODRAM multiplexed row and column address bus.1328DBUS(015)I/ODRAM data bus.29RESET#ISystem reset (active low).30,50,80,100GND-Ground.3239YUV(07)OY is luminance, UV are chrominance data bus for screen video interface.YUV(07) for 8 bit YUV mode.40VSYNCI/OVertical sync for screen video interface, programmable for rising orfalling edge.41HSYNCI/OHorizontal sync for screen video interface, programmable for rising orfalling edge.42CPUCLKIRISC and system clock input.43PCLK2XI/OPixel clock: two times the actual pixel clock for screen video interface.44PCLK I/OPixel clock qualifier in for screen video interface.4549,52,53,54AUX(07)I/OAuxiliary control pins (AUX0 and AUX1are open collectors).5562LD(07)I/ORISC interface data bus.63LWR#OUnused.64LOE#ORISC interface output enable (active low).65,66,67LCS(3,1,0)#ORISC interface chip select (active low).6879,8287LA(017)ORISC interface address bus.81VCC-Digital supply voltage for 5.0V.88ACLKI/OMaster clock for external audio DAC(8.192MHz, 11.2896MHz, 12.288MHz,16.9344MHz, and 18.432MHz).ODual-purpose pin. AOUT is the audio interface serial data output.Pins SEL -PLL(1: 0) select phase-lock loop(PLL) clock frequency 89AOUT/SEL/PLL0ICPUCLK for the Visba : 00 = bypass PLL 01 = 54MHz PLL10 = 67.5MHz PLL 11 = 81MHz PLL90ATCLKI/OAudio transmit bit clock.ODual-purpose pin. ATFS is the audio interface transmit frame sync.91ATFS/SEL/PLL1IPins SEL -PLL(1: 0) select phase-lock loop(PLL) clock frequency CPUCLKfor the Visba. See the SEL -PLL0 pin above for the settings.92DOEODual-purpose pin. DRAM output enable (active low)/DRAM multiplexedrow and column address bus.93AINIAudio interface serial data input.94ARCLKIAudio receive bit clock.95ARFSIAudio interface receive frame sync.96TDMCLKITDM interface serial clock.97TDMDRITDM interface serial data receive.98TDMFSITDM interface frame sync.99CAS#ODRAM column address strobe bank 0 (active low).Port Function of MPEG1 Video/Audio Processing : ES3880 (ICM2)RXD-V252/V252-H5CIRCUIT DESCRIPTIONPort No.Port NameI/OFunction1,25,26,31,7275,77,91,100VSSIGround.5,16,32,6673, 78,90VCCISupply voltage for 5.0v.6DSC CIClock for programming to access internal registers.7AUX0I/OUnused.9AUX1I/OServo reverse or control pin.11AUX2I/OServo LD ON or control pin.70AUX3I/OUnused.69AUX4I/OServo CCW/Close or control pin.68AUX5I/OUnused.67AUX6I/OServo XLAT or control pin/VFD DO.14AUX7I/OServo BRKM/Sense or control pin/VFD DI.18AUX8I/OServo Mute/Open or control pin/VFD CLK.20AUX9I/OServo SQS0 or control pin.34AUX10I/OUnused.35AUX11I/OUnused.36AUX12I/OUnused.38AUX13I/OSerial interrupt/CD Mute or control pin.39AUX14I/OUnused.40AUX15I/OUnused.8,81,83,8593,95,97,99DSC D(70)I/OData for programming to access internal registers.10DSC SIStrobe for programming to access internal registers.12DCLKODual purpose pin. DCLK is the MPEG decoder clock.EXT CLKIEXT CLK is the external clock EXT CLK is an input during bypass PLL mode.13RESET BIVideo reset (active low).15MUTEOAudio mute.17MCLKIAudio master clock.19TWSIDual purpose pin. TWS is the transmit audio frame sync.SPLL OUTOSPLL OUT is the select PLL output.21TSDITransmit audio data input.22TBCKITransmit audio bit clock.ODual purpose pin. RWS is the receive audio frame sync.Pins SEL PLL (1,0) select the PLL clock frequency for the DCLK output.23RWSSEL PLL1 SEL PLL0 DCLKSEL PLL1I00 Bypass PLL (input mode)0 1 27MHz (output mode)1 0 32.4MHz (output mode)1 1 40.5MHz (output mode)24RSTOUT BOReset output (active low).24,273076NC-Unused.RSDODual purpose pin. RSD is the receive audio data input.33SEL PLL0ISEL PLL0 along with SEL PLL1 select the PLL clock frequency for the DCLK output.37RBCKODual purpose pin. RBCK is the receive audio bit clock.SER INISER IN is the serial input DSC mode.41,51AGNDIAudio analog ground.42VCMIADC common mode reference (CMR) buffer output.43VREFPIDAC and ADC maximum reference.44VCCAAIAnalog VCC(5V).45,46AOR+, AOR-ORight channel output.47,48AOL-, AOL+OLeft channel output.49MIC1IMicrophone input 1.50MIC2IMicrophone input 2.Port Function of DAC & TV Encoder : ES3889 (ICM3)RXD-V252/V252-H6CIRCUIT DESCRIPTIONPort No.Port NameI/OFunction52VREF IInternal resistor divider generators common mode reference(CMR) voltage.53VREFMIDAC and ADC minimum reference.54RSETIFull scale DAC current adjustment.55COMPICompensation pin.56,57,62,63VGNDIVideo analog ground.58CDACOModulated chrominance output.59,60VVDDIVideo VCC(5V).61YDACOYluminance data bus for screen video port.64VDACOComposite video output.65ACAPIAudio CAP.71XOUTOCrystal output.74XINI27MHz crystal input.79PCLKI/O13.5MHz pixel clock.802XPCLKI/O27MHz (2 times pixel clock).82HSYN BOHorizontal sync (active low).84VSYN BOVertical sync (active low).8689,9294,96,98YUV(70)IYUV data bus for screen video port.Block Diagram for DAC & TV Encoder : ES3889 (ICM3)Visba ES3889Companion ChipCD-ROM ControllerCD-ROMRemote InterruptRemoteKitControl ControlReceiverVisba ES3880Audio DACSpeakers(Video CD)DSCROMPLLNTSC/PALVideoTelevisionEcho/Surround/Vocal AssistMic 1Pre ampDRAMVolume ControlVFDVFDMic 2Pre ampDriverPanelVolume ControlRXD-V555/V7577ADJUSTMENTAPPLYWAX AFTERADJUSTL312T306T303T302IC301L354T351T301L312IC303IC302X352NO.CHECKING ITEMSG 'N' SET FREQADJDC VOLTAGEREMARKSPOINTSPECFL531KHzT3061.1V ±0.1VADJUST UNTIL VOLTAGE1.AM FREQ(TP301)IS WITHIN GIVEN SPEC.COVERAGEFH1602KHz(TP301)8.8V ±0.5VCONFIRM VOLTAGE IS WITHINGIVEN SPEC2.AM IFFL990KHzT351-SP OUTPUT î ADJ T351 UNTIL MAX(50dB)(TP302)POINT FROM AC VOLTMETER3.AM FREQ.FL990KHz(TP302)-CONFIRM MAX. OUTPUT.TRACKING(50dB)NO.CHECKING ITEMSG 'N' SET FREQADJSPECREMARKSPOINTFL87.5MHzT3011.3V ±0.1VADJUST UNTIL VOLTAGE IS WITHIN1.FM FREQ(TP301)GIVEN SPECCOVERAGEFH108.0MHz(TP301)7.8V ±0.8VCONFIRM VOLTAGE IS WITHINGIVEN SPEC.ADJUST COIL T302 UNTIL MAX.T302OUTPUT2.FM IF-10.7MHz(TP302)-3.FM FREQ.-98MHzL312-ADJUST L312 UNTIL MAXIMUMTRACKING(TP302)WAVEFORM APPEAR.CONDITION : AM MOD 30% DEV 400HzTOANTENNATERMINAL75 75 37.5 S.G(50 )(50 )(50 )TOGNDANT DUMMY CIRCUIT FOR FM*CENTER FREQ. MARKER 10.7MHz*CFM GOOD AND MAX 'S'CURVE IS OBTAINED.Adjustment Parts ConfigurationACEGIBDFHJ2 1357 46Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view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efer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)1110R633 R634R631 R632R863R875R619R618R606R611R612R621R622R615R616R861R880R879R878R873R870R614R380R379R372R383R385R376R359R381C318R373R374R352C353R323R353R355R388R351R362R361R356R377R336R360R393R395R378R350R122R142R115R167R162R108R134R140R136R123R145R146R113R114R139R135R141R121R125R104R107R106 R105R103R124R109R101R1 10R138R112R137R131R166R126R153R132R605R620R617R868R869R874R311R613R169R172R171R173R170R174R156R608R607R638R637R120R301C861C612C636C635C615C616C338C337C397C392C381C387C385C323C336C395C355C356C334C335C354C399C301C351C342C361R316C316C317C366C363C382C330C318C386C388C108C120C111C132C140C119C131C139C113C127C106C107C105C102C101C112C61 1C645C866C332C350C632C631C114C369MJ309MJ306C644C643MJ101MJ1MJ310C306C312R325R322MJ308C324C313C315C303C314MJ307R302R365C310C311C309C308R313R327C305C304MJ301MJ314Q863Q862Q865Q604Q605Q603Q606IC860IC101D861D862DV601DV602D305DV302DV301JK601JK671BI671SW601IC302Q360IC303IC301D301BF301D302D304D303Q122MAIN SECTIONQ121Q108Q107Q124Q126ZD851Q111Q110Q128CNP101Q109CNS102Q106 Q104Q105Q103IC601Q852Q851Q850CNS901BI1 1CNP701Q864SO301FM ANT .AMAUX INCNP301C627C628C864C863C618C617C859C855B'C852C856C602C606C619C629C630C621C620C622C623C625C626C624C613C614R855R856R852R853J858R866R867J604C850C860J855R382R392R391C394T303C380C307TP301C391C396ZD351C398CF351C352C362T302X351C364CF352T351CF302L352L354FE301C370C393C319X352L351C358C357C371C372C368C367T306J315J311J328J304J313J312 R375C331C374 C373R357J310J309J307R384R387J305J306J308J314J320R370R309R314J327L312R358J317R368J628J319C365C320C146C128R158C151C121C133R 111C134C122C150C1 18C1 17R1 17R1 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 4581716131112241312522611112221121324EBEBE BE BEBE13BBEBEBEBEEBEBBEBBBEEEBEBE BE BEEBBEBQ302EBGIOGI211193EBT302DV302UWYAAACVXZABAD2 1357 46R931R932R944R949R950C952R952R951R923R930R929R938C943R937C945R924R926R928C928RL901R903R901C924C934C932C938C936 C933C931C935C937 R920R936R927R925R904R902R935R919C923C927C929C930R939R912R91 1C917R908 R907R910 R909C918R905R921R922R906R934R933C912C913C91 1C914L902L901J907J904J906J905J936J935J910J926J928J91 1J902J903J927J929C939C940J908J921R913R915R914R916R801C802R807R806C809C810R803C814FH81 1FH809FH807FH812C813FH810FH808R804R809R805R802R810R81 1C804J809J808J807J806C803C817C805C820181OGI5C816C81518J922J931J934J933J932J920LG901J901J912J900C921C922C915R917R918C901C902R943R941R942C946C905C956C957C919C920R954R946R948R947R945R953FH813 FH814C819C818C916C925J918J917J924J925J915J916J909J913J914RL801J938J923J930C958J919J941J940J939C904C903T5A L 250VT5A L 250VF804F805F806F807T2A L 250VT2A L 250VT801T801113EBE BEEEBEBEBBB118151 512B E1 6C811C812T802K902K901T5A L 250VF801FH801FH802C80114T2.5A L 250VF802FH804FH803T2.5A L 250VF803FH806FH805ZD951Q905CNP904D901D902ZD901ZD902IC901D913Q907D909D912D908D91 1D907ZD803ZD802D814FW801 B14FW801 AD812ZD804ZD801D815D811D813D818D816D808D850D806D805D804D803D802D851D807Q801CNP905CNP903CNP902BI903BI902FW902CNP901POWER SECTIONQ903Q904Q802Q803Q902Q901S0901RLSPEAKERTERMINALD809D810D801Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view)1213
