Kenwood-RXDDV70-cs-sm 维修电路原理图.pdf

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.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.EX.BASSVOLUMECONTROLDISC SELECTORDISC SKIP0OPEN/CLOSESTANDBY/TIMERDISPLAY/DEMOREVERSE MODEVIDEO/AUXPOWERDVD/CDTAPE APHONESMICMIC LEVELTAPE BSTOPVIRTUAL SURROUNDTUNERBANDON/STANDBYLISTEN MODEDVDVCDCDSELECTENTERTUNING MODEEQ MODE/EX.BASSSMARTMENUMULTICONTROL/P.CALLREC/ARM4DISC 1DISC 2DISC 323237PUSHOPENPUSHOPENTAPE A PLAYPLAY/REC TAPE B Door tray (A22-1864-08)Knob(MAIN) (K29-8040-08)Door deck(R) (A52-0948-08)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 to know systemconfiguration.RadioFans.CN 收音机爱 好者资料库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 control 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 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)AccessoriesSYSTEMMAIN 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 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 condition when it leftthe factory.Set the POWE key to ON. Then press the VIDEO/down.AUX key while holding the TUNING MODE keySystem configurationsCautionsRadioFans.CN 收音机爱 好者资料库RXD-A850DV/DV50/DV703EXTERNAL VIEW* Refer to parts list on page 28 . LRLRLRVIDEO/AUXINOUTFRONTSPEAKERS(6)ONOFFSURROUNDSPEAKERS (8 16)SURROUNDS-VIDEOCrCbYFM 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)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/DV704LRLRLRVIDEO/AUXINOUTFRONTSPEAKERS(6)ONOFFSURROUNDSPEAKERS (8 16)SURROUNDS-VIDEOCrCbYFM 75AMGNDANTENNASUPERWOOFERPRE OUTCOMPONENTVIDEO OUTPUTVIDEO 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 adjustment)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-114Azimuthadjust 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 the center of the tape.3KHz, -4dB(Frequency of 3KHZ +/- 40Hz)2PLAY BACKMTT-130AUX OUTPUTPLAY-Playback output to 400mV +/- 50mVLEVELCN902 Pin1 and Pin2(GND)3REC BIASREC/PBAUX OUTPUTRECT901Ensure that the Frequency CounterFrequencyTEST TAPEAdjust T901 to obtain this of 105KHzAC-224+/- 5KHzRecord 400Hz and 10.0kHz alternately,REC/PBand adjust the bias current adjustment1.TP1(+) and TP2(GND) REC BIASTEST TAPEVR903(L-CH) Adjust VR903(L-CH) to obtain this of 3.5mV4CurrentAC-224AUX OUTPUTREC 2.TP3(+) and TP4(GND) VR904(R-CH) Adjust VR904(R-CH) to obtain this of 3.5mVAUX IN: 50mVREC* potentiometer for the playback levels to 400Hz become the same. (Spec.: +/-5dB)AMPLIFIER SECTIONINPUTOUTPUTAMPLIFIERALIGNMENTNOITEMSETTINGSETTINGSETTINGPOINTALIGN FOR1.R234 Side Pin1 and Pin3 IDLENO SIGNALAUXVR201 Adjust VR201 to obtain this of +8 mV1CURRENTVR(Min.)-FUNCTIONVR2021.R301 Side Pin1 and Pin3 Adjust VR202 to obtain this of +8 mV (Spec.: +8mV +/-3mV)# Idle Current: 20mANOITEMPLAY12AUX OUTPUT-ADJUSTMENTABDFHJCEGI2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)65JW7JW10JW11JW5JW4JW15C003JW9C002M001BD01BD02JW16JW17JW14D001P1001P1002CONTROL BOARDP001P1004P028P026P027JW8JW1JW3JW6C005R003R002R004C004JW2R001C006JW13JW1211111011014EB821 218DVD-LOGOSENSOR BOARDIC002D002IC001Q001P002P1003L3L2L6L5C10C13C15L1J705C701R702R701L4C702J704R11C9CDL2CDL1K701213C704C706J708R703F702F07F08J702R706J707J701F701F05F06R708CN705IC701CN706D1D2R707D706D708Q1D3D4JK1JK2Q2D701D705D703D704IC701(CP706)D707D709Q702CN703CP704P706P709S701DIGITAL OUTOPTICALS VIDEOCVBSVIDEOOUTPUTAC INPUTSTANDBY-VIDEO BOARDCN702VOLTAGESELECTORR10C22C21C19C8R12J1C17F703R700T701J700C705R709J706121511215147BEBEBE141414JK3KMOQSLNPRT2135746Refer 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)109R971R954R964R977R913R914R860R909R944R927R943J930J916R942R941R917J947R916R990R987R947R993R978R980R986R362EN801R363R375G3R335J957C238C234C953C963R926R935R925R930R981R982R921R902TP3J931R901R932R933R934R928R929R931R907R906R908C912R903R904R994TP2TP4R984R979R989J875J866J937J935J932R956VR901R955R967R821R820R819R611J896R612R866R814C831R831R833R834R864R865R846R847R870R837R838R40J901J834J833J873R806R849R848R803R42R802R804R856R959J960J912J913J801J802R857R858R855R840R841R843R844J849J848R867H2H3R835J861J864J862J863J877J876R966R973R974R862R836R900R905C910C911J934C914R910R43J911R45R60R61R350R351C962C248C830C1G2G1C3C961C816R939R995R918R44R845J808R952J971J949J854R946R948R809R812R51J822J827J826J824J828J823J829J821J820J830J832J831J836J841J835J811J810J905J906J904J903J812J813C827J815J814J817J816J818J819J840J837J838J839C806J910C804C825X802C819J908J800J803J907R53R52R46J859J855J856J858C823J883J882J857J881J958X801J852J850J825J851R938G907R960R961R958R959R962R965R976R945R992R816R808R815R861R863R818R817R807C814C942C938L902L901C936C901C956C958C918C960J946J945C954C902C904C903C905C931C932C933C934C924C950C923C926C246C913C939C815J965C937C916C818R850R842J961C805C821C828C829C824C820C817C822C802C801C803C921C249C242C239C964R940R972R936TP6TP5C906C908R919R983R920R338R337R336R331R332R330R859R872R823R824R825R827R826R828R829R830R333R334VR201C240C241C237C235H8C236J929G904R923C920C957R985J944C952R915C915J878T901R963R969R953R951R968R950R970R813J894J898J893J891J807J888J887J964J969J872J860J869J870J871J867J865J967R49R949R957R991R975R937C947C946VR904VR903C945C943C917C930C929C928C922C925C927C907J928C940J972J941C944J853J936J926J922J914TP1J954J948J973J953J939C959J952J956J951J950J915J942J943C919J955J938C951J940C935J927J933C909J917J921J924J918J920J923J919J925R32R31R30R29R28R27R26R25R24R23R22R21R20R19R18R17R16R15R14R13R12R11R10R9R8R7R6R5R4R3R2R15352EBR822J892J842J890J889J968J886C826J804J805J806J809J897J895J847J884R832R39J902J974J962J966J970R810R868J846J844J843J845R811R41R999J880J900J899J879R38R998R37R997R36R996R34R58R805EBQ925DECK BOARDQ917EBQ918EBQ926EBQ914EBQ912EBQ909EBQ908EBQ901EBQ911D902CP907EBQ910EBQ906EEBBQ905Q902EBQ907EBQ945EBQ916EBEBEBEBQ924CN811D809D810D811SW822SW825SW827SW826CP811D819CN805CN801CN808SW819SW820D830SW821CP807G4G5D802D612FL801IC801CN806CN803CN907D805SW823SW824CP809Q922Q923EEBBQ913CN902CN901CN908CP906CP810CP808D808SW805SW804SW803SW802SW801D814D813D812Q812RM801EBQ807EBQ815EBQ810D803D804D818EBQ808CP804EBQ3EBQ809CN809Q927EBQ811D906D904D905EBQ806EBQ814D817D901D903EBQ903EBQ813EBQ803D230D231CN209SW810SW811SW812SW813SW815SW814SW816SW817SW818CN201D240JK202JK201CN807ENCODERPHONESMICMIC AMP SECTIONFRONT BOARDD241D815EBQ920EBQ904EBQ801EBQ921EBQ919G9061122413811311511312121213080511008131501OUTGND+B1914171312191119218181911181698169816981691151122171216IC90114851511485IC902IC201IC802IC803IC805IC804AEAGAIAKAMAFAHAJALAN2135746Refer to the schematic diagram for the value of resistors and capacitors.PC BOARD (Component side view)1112CV29RV29CV28CV16RV17CV17CV65CV35CV34RV35RV9CV8CV12CV23RV23CV22R82R81R62AR84R85R86R87R88R89R90CV5CV4RV11RV28RV16RV3RV4RV8R59R45R68BD10BBD1C63R1RS24RS22RS21C44C43C42C41C34C35C19C20C33R9R10C40R2J10C39J5C1C4R11R19C7R73R91C88CC88SLC88FRC2C3R111AR111J2J3RS4C9C8C45C14R33C36R34RV2RV13RV5RV31RV25RV19C37R35R15C38C22R117R71RM8R36C32C46RM7C47R14C49R18RM20RM21C5C6CV58CV27CV57C28C26RM23C48R72RM22C23C24R43C27R37R115CV61RV7RV34RV33RV32RV10RV6CV40RV22RV20RV21RV14RV27RV26RV15D7D5D4D6BEEBQ3FLEBQ4FLEBQ3FREBQ4FREBQ3CEBQ4CEBQ3WEBQ4WEBQ35LEBQ45LEBQ35REBQ45RQV3BEQV5BEQV2BEQV6BEQV1BEQV4D2D8FLD8WD8CD3D8FRD8SRD8SLQ2Q1QV7DVD 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 8541119218IC441854185IC81IC82413313221152141411485IC8316981157241254821421415111520810410515652153IC1081471IC5IC1IC316981IC9162854271171485148981IC8IC2IC7IC6EBEBEBEBEBEBEBEBBEBEABDFHJCEGI2135746AB123123L(+)GNDR(+)65432187654321L(+)GNDL(-)R(+)GNDR(-)GNDOSC1234567891011121314151617AB+5VPLAY SW-2PHOTO-2MOTOR+SOL-2SOL-1RVS-RECPHOTO-1PACK-2PLAY SW-1COMPACK-1FWD-RECCR02-2CR02-11234567891011121314151617AB+5VPLAY SW-2PHOTO-2MOTOR+SOL-2SOL-1RVS-RECPHOTO-1PACK-2PLAY SW-1COMPACK-1FWD-RECCR02-2CR02-1242322212019181716151413123456789101112A/BALC680P680PC933220PC932C931220PC934560R93447u16C929+150R928180KR93212KR93