Kenwood-DVR7000-avr-sm 维修电路原理图.pdf
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1、DVD / AV RECEIVERDVR-505/7000SERVICE MANUAL 2001-12 PRINTED IN KOREAB51-5779-00 (K/K) 3482 DIGITAL(OPTICAL)S VIDEOFront panel *(A60-)Crystal window (B10-3850-08)In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laserproduct safety.KEN
2、WOOD-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 connect the ground line on rear
3、panel, PCBs, Chassis and some others.Knob(VOLUME) (K29-8164-08)Button (K29-8163-08)Button(POWER) (K29-8165-08)Indicator select (B19-1643-08)Optical input jack (W02-2934-08)Phone jack (E11-0957-08)S-video jack (E56-0045-08)RCA jack (E63-1272-08)* Refer to parts list on page 29 . * Refer to page2 if y
4、ou want to know systemconfiguration.70%(DVT-505/7000)*DIN socket (E63-1243-08)Top cover (A01-3863-08)Tuner assy *(W02-)AC power cord *(E30-)Clamp cord (J42-0350-08)Oscillating module (W02-2911-08)Oscillating module (W02-2934-08)Phono jack (E63-1244-08)RCA jack (E70-0165-08)Phono jack (E63-1270-08)Sl
5、ide switch(SW1)(S62-0113-08)RadioFans.CN 收音机爱 好者资料库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.) FM indoor antenna (1)Loop antenna (1)Remote control unit (1)Batteries (LR03/AAA) (2)Video cord
6、 (1)SCART plug (1) (for U.K. only)Speaker cords (6)(T90-0882-08)(A70-1580-08): KPXY(A70-1580-08): MM2M3(A70-1581-08): TE(E30-7265-08): Red(E30-7266-08): Blue(E30-7267-08): Brown(E30-7268-08): Blue(E30-7269-08): Gray(E30-7270-08): Orange(T90-0896-08)(E69-0012-05)(E30-1427-05)DVR-505/70002CONTENTS / A
7、CCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS. 2BLOCK DIAGRAM .3CIRCUIT DESCRIPTION.4WIRING DIAGRAM.9PC BOARD . 10SCHEMATIC DIAGRAM . 16EXPLODED VIEW .28PARTS LIST.29SPECIFICATIONS .Back coverContentsAccessoriesThe marking this product has been classified as Class1. It means that there is n
8、o danger of hazardous radia-tion outside the product.Location: Back panelCLASS 1LASER PRODUCTThe marking of products using lasers(Except for some areas)Operation to resetThe microcomputer may fall into malfunction (impossibility tooperate, erroneous display, etc.) when the power cord is un-plugged w
9、hile power is ON or due to an external factor. In thiscase, execute the following procedure to reset the microcom-puter and return 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 swit
10、ch to ON (set to Standbymode). Then press the key, 4 key and STOPkey in this order.CautionsSYSTEMMAIN UNITDESTINATION SPEAKERDVT-505DVR-505KPKS-305DVSW-15DVDVT-7000DVR-7000ETMXYKSW-7000DVT-7000(M2)DVR-7000(M2)M2KSW-7000DVT-7000(M3)DVR-7000(M3)M3KSW-7000System configurationRadioFans.CN 收音机爱 好者资料库DVR-
11、505/70003D 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+12VM+12VMtoDVD & VIDEOGNDP/C5.5VSP/Dto FRONTLPFLPFLPFLPFLPFLPFINPUT12.28MHzSDATAN1SW
12、CTRSLSFRFLDVDFROM SYSTEM u-COMSWCTRSFRLSFLSWCTRSLSFRFLFLGNDFRRSGNDLSCENTERGNDSWDC PRTECTIONCHGNDAM OSCFM OSC224DGNDAGNDTUNER-LTUNER-Rto u-COMAGNDBUFFERRDS DATA/CLKGNDGND745612312312F202F201RY201ST-BY +5VAC INPUT FOR SMPSAC2AC1+VEE/S1VDD/S1+-15V+15VAC1+AC2OUTGNDINFL ACFL AC+3.3V+5V+FUNCTIONSECTIONCON
13、TROLSECTIONVOLUME/TONETUNERDVDCONTROLLEDCE,CLK,DATA4094+5VA/D INPUTP/CRDS DATA/CLKPOWER DOWNTO SMPSDETECTDCPROTECTDGNDHEADPHONEDETECTH MUTE17dBFRONTMUTESURMUTEMUTECENSUB/WMUTESUB WOOFERAUX(F)VIDEO2R/OP/BMONITORVIDEO1MONITORR/OVIDEO2P/BAUX(F)VIDEO1VIDEOSWITCHINGAUDIOOUTPUTIC201MPEGPROCESSORSDRAMFLASH
14、EEPROMADCMECHANISMCONTROLLOADPLL ICDACAUDIO-IC1SECTIONDVDSMPS FORDVD & VIDEOFOR DVDAC INPUTAUX(F)COAXIALOPTICALCOAXIALOPTICALOPTICALOUTPUTDIGITALINPUTDIRPROCESSORSURROUNDADC &DACIC5IC1IC14IC11,12IC84VOLUME &MASTERTONECIRCUITIC88(2/2)IC88(1/2)IC87(2/2)IC87(1/2)IC86(2/2)IC86(1/2)IC89SPKRRLY101IC90RLY1
15、02SPKRIC91RLY103SPKRJACK101-CJACK101-AJACK101-BGNDAM LOOPFM75ANTENNAAM RFFRONT-ENDFMIF AMPFM/AMDECODERRDSIF+MPXPLLTUNER MODULEVIDEO1VIDEO1 RECAUX/FRONTSAT/VID2IC75IC10AUDIOSWITCHCN113CN121CN206AC INPUTAC INPUTSELSTAND -BYCONTROLQ201D70IC501SYSTEM u-COMFL431FL DISPLYIC431REGISTERSHIFTFRONT KEYFUNCTIO
16、NHP401PROTECTIONQ76,Q77HEAD-PHONEIC85HEADPHONEAMPVIDEO INPUTQ84,85REC OUTREC OUTDIGITALINDATADATADIGITALDATASURROUNDDSP BDIC70IC71IC73IC72DVR-505/7000BLOCK DIAGRAMDVR-505/70004CIRCUIT DESCRIPTIONPort No.Port NameI/ODescription1GRID2OFIP GRID2GRID1OFIP GRID3NC-CONNECTED TO VDD4POWER DOWNIPOWER DOWN C
17、HECK 5RDS CLKIRDS CLOCK6DVD RXIDVD UART INTERFACE (RX)7RDS OPTION-NC (CONNECTED TO GND)8RMCIREMOTE CONTROLLER SIGNAL9RDS DATAIRDS DATA10SM7346 CLKOVOLUME IC (IC84) CLOCK 11SM7346 DATAOVOLUME IC (IC84) DATA12ENCODER UPIENCODER (1) SIGNAL13ENCODER DWIENCODER (2) SIGNAL14DVD TXODVD UART INTERFACE (TX)1
18、5DVD RSTODVD RESET16DSP A. BOOSTODSP AUTO BOOT 17H/P CHKIHEADPHONE CHECK 18CS8415A-CEODIR IC (IC14) CHIP ENABLE 19EMPHASISOCS4228 DAC IC EMPHASIS ON/OFF 20TUNEDITUNED SIGNAL 21DSP INTREQODSP INT REQUEST 224094CEOIC431 CHIP ENABLE 23CS49326 CEOCS49326 DSP IC (IC5) CHIP ENABLE 24CS4228 CEOCS4228 DAC I
19、C (IC1) CHIP ENABLE 25DSP CLKOCS49326 DSP IC (IC5) CLOCK 26CS49326 DATA INICS49326 DSP IC (IC5) DATA 27DSP DA OUTOCS49326 DSP IC (IC5) DATA 28VREFIA/D REFERENCE (5V)29PROTECTIAMP PROTECTION IN30KEY INIA/D KEY 31EEPROM DATAI/OEEPROM (IC502) DATA32EEPROM CLKOEEPROM (IC502) CLOCK338415 DA INICS8415 DIR
20、 IC (IC14) DATA 34DVD OPTIONIMODEL DISCRIMINATION35PLL DATA INIPLL DATA 36STEP OPTIONITUNER STEP OPTION 37VSSIAVSS (ANALOG GND)38RSTIRESET(LOW ACTIVE)39EXTALIX-TAL IN(10MHz)40XTALOX-TAL OUT(10MHz)41GND-VSS (DIGITAL GND)42NCOUNUSED43GND-GND44VDDIVDD (DIGITAL VDD)45VFDPIVFDP (FIP PULL DOWN POWER -30V)
21、46STANDBYOSTANDBY (POWER RELAY ON/OFF)47SPK RELAYOSPEAKER RELAY ON/OFF48SUB ON/OFFOSUB WOOFER GAIN CONTROL49CS8415 RSTOCS8415 (IC14) RESET50PLL CEOPLL CHIP ENABLE51PLL CLKOPLL CLOCK52PLL D OUTOPLL DATA 53A CLKOCOMMON CLOCK(LC7821,BU4094)54A DATAOCOMMON DATA(LC7821,BU4094)5559VIDEO (SW1SW5)OVIDEO SW
22、(15)1. Port Description of System Microcomputer : CXP828XX(IC501)DVR-505/70005CIRCUIT DESCRIPTIONPort No.Port NameI/ODescription604228 RSTOCS4228 (IC1) RESET61LC7821 CEOLC7821(TUNER PACK) CHIP ENABLE62SM7346 CEOSM7346 (IC84) CHIP ENABLE63T MUTEOTUNER MUTE64S MUTEOREAR SIGNAL MUTE65C MUTEOCENTER SIGN
23、AL MUTE66F MUTEOFRONT SIGNAL MUTE67W MUTEOSUB WOOFER SIGNAL MUTE68CS49326 RSTOCS49326 DSP IC (IC5) RESET6971DSP (A15A17)ODSP ROM ADDRESS (SEL 13)7288SEG (117)OFIP SEGMENT 89VDD-VDD (DIGITAL VDD)90,91SEG18,19OFIP SEGMENT 92-100GRID (113)OFIP GRID Port No.Port NameI/OMainAlternate functionFunctionInpu
24、tOutputAudio DAC51DAC SCLKOOver sampling clockEXT AUD CLOCK52DAC PCMOUT0OPCM out 0EXD AUD DATA53DAC PCMOUT1-PCM out 1 (unused)EXT AUD REQ54DAC PCMOUT2-PCM out 2 (unused)55DAC PCMCLKI/OPCM clock56DAC LRCLKOLeft/Right clockEXT AUD WCLK57SPDIF OUTOSPDIF out48VDD PCM-VDD(+3V3)49VSS PCM-GNDClock & Reset1
25、24RESETIChip reset122VDD PLL-VDD PLL123VSS PLL-GND120PIX CLKI27MHz main clockPIOs and communication186PIO0(0) T STROBEI/OPIO0(0)UART0 data187PIO0(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
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