Kenwood-RXDDV-70-Service-Manual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 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/AUXPOWERDVD/CDTAPE APHONESMICMIC LEVELTAPE BSTOPVIRTUALSURROUNDTUNERBANDON/STANDBYLISTEN MODEDVDVCDCDSELECTENTERTUNING MODEEQ MODE/EX.BASSSMARTMENUMULTICONTROL/P.CALLREC/ARM4¢DISC 1DISC 2DISC 323237PUSHOPENPUSHOPENTAPE APLAYPLAY/REC TAPE BDoor 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.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 configurationsCautionsRXD-A850DV/DV50/DV703EXTERNAL VIEW*Refer to parts list on page 28 . LRLR LRVIDEO/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 ass'y *(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/DV704LRLR LRVIDEO/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)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 and 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 playback 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 obtain 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 BOARDP001P1004P028P026P027JW8JW1JW3JW6C005R003R002R004C004JW2R001C006JW13JW1211111 01 1014EB821218DVD-LOGOSENSOR BOARDIC002D002IC001Q001P002P1003L3L2L6L5C10C13 C15L1J705C701R702R701L4C702J704R11C9CDL2CDL1K701213C704C706J708R703F702F07F08J702R706J707J701F701F05F06R708CN705IC701CN706D1D2R707D706D708Q1D3D4JK1JK2Q2D701D705D703D704IC701(CP706)D707D709Q702CN703CP704P706P709S701DIGITAL OUTOPTICALS VIDEOCVBSVIDEOOUTPUTAC INPUTSTANDBY-VIDEO BOARDCN702VOLTAGESELECTORR10C22C21C19C8R12J1C17F703R700T701J700C705R709J706121511215147BEBEBE141414JK3KMOQSLNPRT2 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)109R971R954R964R977R913R914R860R909R944R927R943J930J916R942R941R917J947R916R990R987R947R993R978R980R986R362EN801R363R375G3R335J957C238C234C953C963R926R935R925 R930R981 R982R921R902TP3J931R901R932R933R934R928R929R931R907 R906 R908C912R903R904R994TP2TP4R984R979R989J875J866J937J935J932R956VR901R955R967R821R820R819R611J896R612R866R814C831R831R833R834R864R865R846R847R870R837R838R40J901J834J833J873R806R849R848R803R42R802R804R856R959J960J912J913J801J802R857R858R855R840R841R843R844J849J848R867H2H3R835J861J864J862J863J877J876R966R973R974R862R836R900R905C910C911J934C914R910R43J911R45 R60 R61R350R351C962C248C830C1G2G1C3C961C816R939R995R918R44R845J808R952J971J949J854R946R948R809R812R51J822J827J826J824J828J823J829J821J820J830J832J831J836J841J835J811J810J905J906J904J903J812J813C827J815J814J817J816J818J819J840J837J838J839C806J910C804C825 X802C819J908J800J803J907R53R52R46J859J855 J856J858C823J883J882J857J881J958X801J852J850J825J851R938G907R960R961R958R959R962R965R976R945R992R816R808R815R861R863R818 R817R807C814C942C938L902L901C936C901C956C958C918C960J946J945C954C902C904C903C905C931C932C933C934C924C950C923C926C246C913C939C815J965C937C916C818R850R842J961C805C821C828C829C824C820C817C822C802C801C803C921C249C242C239C964R940R972R936TP6 TP5C906C908R919R983R920R338R337R336R331R332R330R859R872R823R824R825R827R826R828 R829 R830R333R334VR201C240C241C237C235H8C236J929G904R923C920C957R985J944C952R915C915J878T901R963R969R953R951R968R950R970R813J894J898J893J891J807J888J887J964J969J872J860J869J870J871J867J865J967R49R949R957R991R975R937C947C946VR904VR903C945C943C917C930C929C928C922C925C927C907J928C940J972J941C944J853J936J926J922J914TP1J954J948J973J953J939C959J952J956J951J950J915J942J943C919J955J938C951J940C935J927J933C909J917J921J924J918J920J923J919J925R32R31R30R29R28R27R26R25R24R23R22R21R20R19R18R17R16R15R14R13R12R11R10R9R8R7R6R5R4R3R2R15352EBR822J892J842J890J889J968J886C826J804J805J806J809J897J895J847J884R832R39J902J974J962J966J970R810R868J846J844J843J845R811R41R999J880J900J899J879R38R998R37R997R36R996R34R58R805EBQ925DECK BOARDQ917EBQ918EB Q926EBQ914EB Q912EBQ909EBQ908EBQ901EBQ911D902CP907EBQ910EBQ906EEBBQ905Q902EBQ907EBQ945EB Q916EBEBEBEBQ924CN811D809D810D811SW822SW825SW827SW826CP811D819CN805 CN801CN808SW819SW820D830SW821CP807G4G5D802D612FL801IC801CN806CN803CN907D805SW823SW824CP809Q922Q923EEBBQ913CN902CN901CN908 CP906CP810CP808D808SW805 SW804 SW803SW802SW801D814D813 D812Q812RM801EB Q807EB Q815EBQ810D803D804D818EBQ808CP804EBQ3EBQ809CN809Q927EBQ811D906D904D905EBQ806EBQ814D817D901D903EBQ903EBQ813EBQ803D230D231CN209SW810SW811SW812SW813SW815SW814SW816 SW817 SW818CN201D240JK202JK201CN807ENCODERPHONESMICMIC 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 value of resistors and capacitors. PC BOARD (Component side view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