Kenwood-RXDDV-70-Service-Manual电路原理图.pdf

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1、70%MINI HiFi COMPONENT SYSTEMRXD-A850DV/DV50/DV70SERVICE MANUAL(XD-A850DVDV70)*2001-9 PRINTED IN KOREAB51-5751-00 (K/K) 3186 *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.KENWO

2、OD-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.EX.BASSVOLUMECONTROLDISC SELECTORDISC SKIP0OPEN/CLOSESTANDBY/TIMERDISPLAY/DEMOREVERSE MODEVIDEO/AUXPOWERDV

3、D/CDTAPE APHONESMICMIC LEVELTAPE BSTOPVIRTUALSURROUNDTUNERBANDON/STANDBYLISTEN MODEDVDVCDCDSELECTENTERTUNING MODEEQ MODE/EX.BASSSMARTMENUMULTICONTROL/P.CALLREC/ARM4DISC 1DISC 2DISC 323237PUSHOPENPUSHOPENTAPE APLAYPLAY/REC TAPE BDoor tray (A22-1864-08)Knob(MAIN) (K29-8040-08)Door deck(R) (A52-0948-08

4、)Button(DISC) (K29-8031-08)Window *(B10-)Button(OPEN/CLOSE)(K29-8037-08)Button(MENU)(K29-8039-08)Button(REC/ARM)(K29-8036-08)Volume ring(B01-2575-08)Button(ON/STANDBY) (K29-8038-08)Door deck(L) (A52-0947-08)Front panel *(A60-)M and M2 types are available for MIC circuit.*Refer to page 2 if you want

5、to know systemconfiguration.RXD-A850DV/DV50/DV702CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2EXTERNAL VIEW.3ADJUSTMENT.4PC BOARD.5SCHEMATIC DIAGRAM.13EXPLODED VIEW.26PARTS LIST.28SPECIFICATIONS.36ContentsFM indoor antenna (1)(T90-0881-08)Loop antenna (1)(T90-0882-08)Remote co

6、ntrol unit (1)(A70-1533-08): .KYX(A70-1534-08): .TE(A70-1535-08): .MM2Batteries (R6/AA) (2)*AC plug adaptor (1) (E03-0115-05)*Use to adapt the plug on thepower cord to the shape ofthe wall outlet.(Accessory only for regionswhere use is necessary.)/Video cord (1)(E30-7235-08)The marking is located on

7、 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.The marking of products using lasers(Except for some areas)Accessori

8、esSYSTEMMAIN UNITDESTINATIONSPEAKERXD-A850DVRXD-A805DVKLS-N50V-HXD-DV50RXD-DV50MXETLS-N50VXD-DV50(M2)RXD-DV50(M2)M2LS-N50VXD-DV60RXD-DV70MXLS-N70VXD-DV60(M2)RXD-DV70(M2)M2LS-N70VXD-DV70RXD-DV70MXLS-N90VOperation to resetThe microcomputer may fall into malfunction (impossibility tooperate, erroneous

9、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 it to normal condition.Please note that resetting the microcomputer clears thecontents stored in and returns and to con

10、dition when it leftthe factory.Set the POWE key to ON. Then press the VIDEO/down. AUX key while holding the TUNING MODE keySystem configurationsCautionsRXD-A850DV/DV50/DV703EXTERNAL VIEW*Refer to parts list on page 28 . LRLR LRVIDEO/AUXINOUTFRONTSPEAKERS(6)ONOFFSURROUNDSPEAKERS (8 16)SURROUNDS-VIDEO

11、CrCbYFM 75AMGNDANTENNASUPERWOOFERPRE OUTCOMPONENTVIDEO OUTPUTVIDEO OUTPUTDIGITALOUTOPTICAL+ +AC 110-120VAC 220-240VMetallic cabinet (A52-0949-08)DIN socket(E63-1243-08)Tuner assy *(W02-)Phono jack *(E63-)AC power cord *(E30-)Phono jack *(E63-)Lock terminal board(E70-0152-08)Slide switch(S62-0108-08)

12、Lock terminal board(E70-0158-08)Digital out(W02-2911-08)Phono jack *(E63-)AC power cord bushing(J42-0350-08)Slide switch(S62-0109-08)RXD-A850DV/DV50/DV704LRLR LRVIDEO/AUXINOUTFRONTSPEAKERS(6)ONOFFSURROUNDSPEAKERS (8 16)SURROUNDS-VIDEOCrCbYFM 75AMGNDANTENNASUPERWOOFERPRE OUTCOMPONENTVIDEO OUTPUTVIDEO

13、 OUTPUTDIGITALOUTOPTICAL+ +AC 110-120VAC 220-240VOscilloscopeFM SGAC voltmeterFrequency counterAC voltmeterAG(A)(B)Measurement Equipment ConnectionsCASSETTE DECK SECTIONINPUTOUTPUTCASSETE TAPE ALIGNMENTALIGN FORSETTINGSSETTINGSDECK SETTINGSPOINT0dB = 400mV1. Cassette mechanism section (REC/PB head a

14、djustment)Power OFFREC/PB head,Demagnetize the REC/PB head by headDemagnetizationdemagnetization,erase head.eraser.Clean the REC/PB head,eraseand cleaningcleaning playcapstan,pinchhead capstan and pinch roller with arollercotton awab immersed in alcohol.Adjust the output to maximum andazimuthMTT-114

15、Azimuthadjust the azimuth adjustment screwREC/PB HeadTCC-153adjustmentfor the Lissajours waveform pattern ofazimuth10KHz,-10dBscrewthe oscilloscope to become close to a45 straight line.2.PC board adjustmentMTT-111Adjust the tape speed so that 3kHz is1Tape speedTCC-100AUX OUTPUTPLAYVR901obtained at t

16、he center of the tape.3KHz, -4dB(Frequency of 3KHZ +/- 40Hz)2PLAYBACKMTT-130AUX OUTPUTPLAY-Playback output to 400mV +/- 50mVLEVELCN902 Pin1 and Pin2(GND)3REC BIASREC/PBAUX OUTPUTRECT901Ensure that the Frequency CounterFrequencyTESTTAPEAdjust T901 to obtain this of 105KHzAC-224+/- 5KHzRecord 400Hz an

17、d 10.0kHz alternately,REC/PBand adjust the bias current adjustment1.TP1(+) and TP2(GND) REC BIASTESTTAPEVR903(L-CH)Adjust VR903(L-CH) to obtain this of 3.5mV4CurrentAC-224AUX OUTPUTREC2.TP3(+) and TP4(GND) VR904(R-CH)Adjust VR904(R-CH) to obtain this of 3.5mVAUX IN: 50mVREC* potentiometer for the pl

18、ayback levels to 400Hzbecome the same. (Spec.: +/-5dB)AMPLIFIER SECTIONINPUTOUTPUTAMPLIFIERALIGNMENTNOITEMSETTINGSETTINGSETTINGPOINTALIGN FOR1.R234 Side Pin1 and Pin3 IDLENO SIGNALAUXVR201Adjust VR201 to obtain this of +8 mV1CURRENTVR(Min.)-FUNCTIONVR2021.R301 Side Pin1 and Pin3 Adjust VR202 to obta

19、in this of +8 mV(Spec.: +8mV +/-3mV)# Idle Current: 20mANOITEMPLAY12AUX OUTPUT-ADJUSTMENTABDFHJCEGI2 1357 46Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)65JW7JW10JW11JW5JW4JW15C003JW9C002M001BD01BD02JW16JW17JW14D001P1001P1002CONTROL BOARDP001

20、P1004P028P026P027JW8JW1JW3JW6C005R003R002R004C004JW2R001C006JW13JW1211111 01 1014EB821218DVD-LOGOSENSOR BOARDIC002D002IC001Q001P002P1003L3L2L6L5C10C13 C15L1J705C701R702R701L4C702J704R11C9CDL2CDL1K701213C704C706J708R703F702F07F08J702R706J707J701F701F05F06R708CN705IC701CN706D1D2R707D706D708Q1D3D4JK1JK

21、2Q2D701D705D703D704IC701(CP706)D707D709Q702CN703CP704P706P709S701DIGITAL OUTOPTICALS VIDEOCVBSVIDEOOUTPUTAC INPUTSTANDBY-VIDEO BOARDCN702VOLTAGESELECTORR10C22C21C19C8R12J1C17F703R700T701J700C705R709J706121511215147BEBEBE141414JK3KMOQSLNPRT2 1357 46Refer to the schematic diagram for the value of resi

22、stors and capacitors. PC BOARD (Component side view)78R483BEBEBEBEBEBEBEBEBEBEBBEEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBBBEEEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEBEB EB EB EBEBEBE BEJ338J335C405C401C403J336C407J383J254J332J330J327J334J333J329J255J328C435R433R405C422R434R419R438R437J323J322J325C421J326R4

23、07C420J342J341J343C406C416J340C429C409C410R424C430J318C252J303C424 J360R412R248R252R239R280R484R470R474C268C267R281R269R261R238R233R286R293C263R306J376R237R242 J364J398J294C208J367J293C207J292J297R234J385R320C261J298J238J288J302R301J290J289J102J291J365R291R298J258J240J280J279J278J281L202R207J339R340

24、J261R231R201R202R348R349R232R247R236R417R339R222R299R342J263VR202J324J287J232J260R297J313J299J259J286R321J282J283R480R491J285R421J321R406J393R435R410R487C408R220R489R345R486J384C404R343R347J372C253J374J391J373J386J361J371J369J368J366J362J354J353J351J352J382J359R358C258R371R370R355R356R372R373R353R36

25、1C260R360R230R229R357R359C203J370J235J269J252C622J224J256J257J243J244J388J247J250J246J245J248C615C638 J600C626J251J221J226R609H3C632R624R604J212J220C601F611J222J219C608J210J200J389J380J202J204J201F610J205J218C607C604C603J217J216J215J214J213J211 J206R602J381J234J228J225J227C633J223C639R623J229R606C64

26、0IOGIOGC634J241J242C617C618C621H006R626C635J231J230H4H5J249C623J233J379BBEEC630R610R608C631J103C606C602C605C627R607R625R605J209J207J208R620F604F603R627C614J253CP613IC601Q601Q603Q604CN602Q605CN603CP607CN604CN618CP611CN605IC603Q606CN2D604Q607D611D610D609D620D602D601D606IC602CN614J356J355J270J357J266J2

27、68J267VR201R226R225J265R223R224J273J274J276J277J264J262R214R215C202R208R209R290R216C206C204R212R311R308R213R312J363R309R210R221R217R218R211R219R313R310R307J377R402 C402R254R420R411R414R256C213R418R258C432R415R374R490R366R329R244J348K201J275J350 J349R250J203C262R249J358R270R259R265R267J101C218J320J33

28、1J394J312J390J319J317C431R245J314J301J300J346J345R283R289D218D212D211R227C205R262R263R303R351R350R264R271R272R416J311J347J315R485J309R401J308R464J310J307C468C465C223J399C436R463R273C219R268 R457R466C473J306R465R469R467 C467C472R323R326R325R468C471R367J295J392R369L201R204R203R205R206R328R318R315R317

29、R316R292R285C251C250C269 R295R368 R322 R319J296C233C232C257R331R324R327J304J284R459 R458R460C466R364C439J395C440R451C460C437R472C478C256R477 C473 C438C441J400R461R462C226R296R284R274 R275C222R278R200C264C224R276C221R304C230R305R228C214C216C211J375C210R413R354R352C259J396J387R409C408R425R346R488R403R

30、404C434J237C449C212C433C450R217C228C225J239C220C227J236C231C254R314J271J397J272C201C255C266C265C229C209C215C428C411C413C412C414C423C425C426C427C415C453CP404Q402IC401CP402D233Q255CP352CP203Q244Q252Q246Q247Q210CN606CN616Q212D206Q257Q256Q214CP350D225D224D222CP351BBBEEQ207B EEB EBEQ206B EQ234D223BBBBEEE

31、EQ230Q228Q259Q258B EQ211Q253Q254CP405Q209Q205D207Q213D210D201D203D204D217D213D208Q208Q231Q233D234Q241Q240Q242D232IC406D229Q239D2D1Q406CP401Q407Q408Q401Q222Q251JK402JK401Q227Q232D219D228Q229Q235Q226Q224Q225Q249D209D226 D221Q217Q220Q218Q250Q216Q221Q223Q237Q219CP202Q243Q215D235CP204CP205S201D227JK203JK

32、204Q201Q203D205Q202Q204D202Q236Q238CP403Q404Q403IC403IC402Q410Q409Q245121819MAIN BOARD3016115148154817171162851415 11 11101 6111341125112121 1 10151115 1111551113111133613228451E BPOWER AMPBOARDLRLRFRONTSPEAKERSSURROUNDSPEAKERSVIDEO/AUXSUPPERWOOFERPRE OUTINOUTUVXZABADWYAAAC2 1357 46Refer to the sche

33、matic diagram for the value of resistors and capacitors.PC BOARD (Component side view)109R971R954R964R977R913R914R860R909R944R927R943J930J916R942R941R917J947R916R990R987R947R993R978R980R986R362EN801R363R375G3R335J957C238C234C953C963R926R935R925 R930R981 R982R921R902TP3J931R901R932R933R934R928R929R93

34、1R907 R906 R908C912R903R904R994TP2TP4R984R979R989J875J866J937J935J932R956VR901R955R967R821R820R819R611J896R612R866R814C831R831R833R834R864R865R846R847R870R837R838R40J901J834J833J873R806R849R848R803R42R802R804R856R959J960J912J913J801J802R857R858R855R840R841R843R844J849J848R867H2H3R835J861J864J862J863

35、J877J876R966R973R974R862R836R900R905C910C911J934C914R910R43J911R45 R60 R61R350R351C962C248C830C1G2G1C3C961C816R939R995R918R44R845J808R952J971J949J854R946R948R809R812R51J822J827J826J824J828J823J829J821J820J830J832J831J836J841J835J811J810J905J906J904J903J812J813C827J815J814J817J816J818J819J840J837J838

36、J839C806J910C804C825 X802C819J908J800J803J907R53R52R46J859J855 J856J858C823J883J882J857J881J958X801J852J850J825J851R938G907R960R961R958R959R962R965R976R945R992R816R808R815R861R863R818 R817R807C814C942C938L902L901C936C901C956C958C918C960J946J945C954C902C904C903C905C931C932C933C934C924C950C923C926C246

37、C913C939C815J965C937C916C818R850R842J961C805C821C828C829C824C820C817C822C802C801C803C921C249C242C239C964R940R972R936TP6 TP5C906C908R919R983R920R338R337R336R331R332R330R859R872R823R824R825R827R826R828 R829 R830R333R334VR201C240C241C237C235H8C236J929G904R923C920C957R985J944C952R915C915J878T901R963R969

38、R953R951R968R950R970R813J894J898J893J891J807J888J887J964J969J872J860J869J870J871J867J865J967R49R949R957R991R975R937C947C946VR904VR903C945C943C917C930C929C928C922C925C927C907J928C940J972J941C944J853J936J926J922J914TP1J954J948J973J953J939C959J952J956J951J950J915J942J943C919J955J938C951J940C935J927J933

39、C909J917J921J924J918J920J923J919J925R32R31R30R29R28R27R26R25R24R23R22R21R20R19R18R17R16R15R14R13R12R11R10R9R8R7R6R5R4R3R2R15352EBR822J892J842J890J889J968J886C826J804J805J806J809J897J895J847J884R832R39J902J974J962J966J970R810R868J846J844J843J845R811R41R999J880J900J899J879R38R998R37R997R36R996R34R58R8

40、05EBQ925DECK BOARDQ917EBQ918EB Q926EBQ914EB Q912EBQ909EBQ908EBQ901EBQ911D902CP907EBQ910EBQ906EEBBQ905Q902EBQ907EBQ945EB Q916EBEBEBEBQ924CN811D809D810D811SW822SW825SW827SW826CP811D819CN805 CN801CN808SW819SW820D830SW821CP807G4G5D802D612FL801IC801CN806CN803CN907D805SW823SW824CP809Q922Q923EEBBQ913CN902C

41、N901CN908 CP906CP810CP808D808SW805 SW804 SW803SW802SW801D814D813 D812Q812RM801EB Q807EB Q815EBQ810D803D804D818EBQ808CP804EBQ3EBQ809CN809Q927EBQ811D906D904D905EBQ806EBQ814D817D901D903EBQ903EBQ813EBQ803D230D231CN209SW810SW811SW812SW813SW815SW814SW816 SW817 SW818CN201D240JK202JK201CN807ENCODERPHONESMIC

42、MIC AMP SECTIONFRONT BOARDD241D815EBQ920EBQ904EBQ801EBQ921EBQ919G90611224138 11311511312121213080511008131501OUTGND+B191 41 7131 21 911192181 81 91118169 8169 816981691151122171216IC90114 851 5 11 48 5IC902IC201IC802 IC803 IC805IC804AEAGAIAKAMAFAHAJALAN2 1357 46Refer to the schematic diagram for the

43、 value of resistors and capacitors. PC BOARD (Component side view)1112CV29RV29CV28CV16RV17CV17CV65CV35CV34RV35RV9CV8CV12CV23RV23CV22R82R81R62AR84R85R86R87R88R89R90CV5CV4RV11RV28RV16RV3RV4RV8R59R45R68BD10BBD1C63R1RS24RS22RS21C44C43C42C41C34C35C19C20C33R9R10C40R2J10C39J5C1C4R11R19C7R73R91C88CC88SL C88

44、FRC2C3R111AR111J2J3RS4C9C8C45C14R33C36R34RV2RV13RV5RV31RV25RV19C37R35R15C38C22R117R71RM8R36C32C46RM7C47R14C49R18RM20RM21C5C6CV58CV27CV57C28C26RM23C48R72RM22C23C24R43C27R37R115CV61RV7RV34RV33RV32RV10RV6CV40RV22RV20RV21RV14RV27RV26RV15D7D5D4D6BEEBQ3FLEBQ4FLEBQ3FREBQ4FREBQ3CEBQ4CEBQ3WEBQ4WEBQ35LEBQ45LE

45、BQ35REBQ45RQV3BEQV5BEQV2BEQV6BEQV1BEQV4D2D8FLD8WD8CD3D8FRD8SRD8SLQ2Q1QV7DVD BOARDCN1CP3CN2D1CV15CV25CV9CV18CV19CV37C51C17C18C21C88FLCV48CV45C88SRC88WCV39CV13CV31C83FLC85FLCV21C85FRC83FRC85CC83CC83SLW83WC85SLCM2CM1C85SRC83SRCV81SRC85WC81FLC81FRC81CC81WC81SLCV53CV52CV42CV51CV56CV24C31C60CV54CV55C25CV4

46、1CV7CV3C13C16C15LS4LS3LS6CV1CV11CV6R42RV30CV26RV39CV14RV18CV63RV38CV2RV12RV55R114R66R96R26R23R57R56RA9RA8RA7RA6RA16RA15RA14RA13RA12RA11RA10RA5RA3RA2RA1RS16RS18R64R65R29R30BD11RV44RV43R67R70R62R61BD10RV54RV53RV52RV51RV50R105R85FLC82FLR82FLR85FRR82FRR103R102R92R93R95R94R17ARA73RA72R49 C29 R48 R50C30R5

47、8RS1 RS5 RS7RS3 RS6 R16AR63RS2 R13 R12RM9R113 R112R46R47RA71RA70RA80R17CV50CV46CV43C82FRC82CR82CCV64R25R24 R32C11R31C12R28J1R16R27R21R20R22R80R79R78R77R76R75R74RS23 R41 C10RV40CV20RV24RV37CV10RV1RV42RV36CV32CV62C84FLC86FLC84FLC86FRC84FRR106R108LM1R110R87SRR81SRR87FLR81FLC84FRR107R109R104R85CR85WC84C

48、C86CR84CR84WC86WC86SLR84SLC86SRR84SRC84WR85SLR85SRC84SLS84SRR87FRR81FRC87FLR83FLR86FLC87FRR86FRR83FRC87CR83CR86CC87WR83WR86WC87SLR83SLR86SLC87SRR83SRR86SRR38CV49CV47R8R7R6R5R4R3RA4R54RS90R55R51R53R52R118R119R83R44X1CV44R39R40R87CR81CR82WC82WC82SLR82SLR82SRC82SRR87WR81WR87SLR81SLRV41QV8QV10QV11QV13QV12QV9QV14CN3CP2CN4CP1 85 41119218IC441 8541 85IC81IC82413313221152141411485IC83169 811572412548214214151115208104105 15652153IC1081471