Kenwood-VR-7070-A-Service-Manual电路原理图.pdf
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1、AUDIO-VIDEO SURROUND RECEIVER2003-8 PRINTED IN KOREAB51-5875-00 (K/K) 1362*Refer to parts list on page 6. VR-7070A/7080ASERVICE MANUALTHXSPEAKER EQACTIVE EQDSP STEREOINPUT MODEDIMMERSOUNDTONESETUPBANDAUTOMEMORYMULTI CONTROLLISTEN MODETUNERMD/TAPEVIDEO 3VIDEO 2VIDEO 1PHONOCD/DVDTHXDTSCS IIDOLBY DIGIT
2、ALSPEAKER EQACTIVE EQA SPEAKERS BPHONESDOWNMUTEAV AUXS VIDEOVIDEOL-AUDIO-RUPVOLUME CONTROLSTANDBYPOWERON/STANDBYDVD/6CHFront glass *(B10-)Knob (K29-8268-04)Panel (A60-2336-02)Knob (K29-8272-04)Sub panel assy (A22-1874-01)Knob assy (K29-8137-03)Knob assy (K29-8137-03)Dressing panel (A21-3983-12)Note:
3、A different information will be available from this service manual. Pls refer to original service manual(B51-5843-00), too.+-SPEAKERS(8-16)SPEAKERS(8-16)PRE OUTFRONT ASURROUNDSURROUND BACK/SUBWOOFERFRONT BCENTERFRONT B- +PHONOCD/DVDMD/TAPEREC OUTVIDEO 1PLAY INPLAY INVIDEO 2VIDEO 3PLAY INDVD/6CH.INPU
4、TFRONTSURROUNDCOAXIALSYSTEM CONTROLOPTICALCD/DVDOPTICALVIDEO 3OPTICALCD/DVDDIGITAL INDIGITAL OUTINVIDEOS VIDEOINVIDEO DVD/6CHVIDEO 2VIDEO 3 IN DVD ININDVDROOM BFRONTCENTERSURROUNDIRRECEIVER INIRREPEATER OUTSURROUND BACKSUBWOOFERMONITOROUTROOM BOUTSUB WOOFERININREC OUTPLAY INPLAY INPLAY INPLAY INREC
5、OUTCENTEROUTINVIDEOVIDEOAC OUTLETS150W 1.25A MAX.SWITCHED TOTALWHITEGREENREDLRYCBYYCBY- +BLUEPURPLEGREYLRLRCOMPONENT VIDEOMONITOR OUTFM 75GND AMANTENNAGNDAC power cord (E30-2941-05)Pin jack (E63-1080-05)AC outlet (E03-0148-05)Pin jack (E63-1317-05)x2Lock terminal board (E70-0160-05)Pin jack (E63-131
6、3-05)AC power cord bushing(J42-0349-05)Cylindrical receptacle (E56-0040-05)x3Pin jack (E63-1248-05)Pin jack (E63-1246-08)Pin jack (E63-1316-05)Miniature phone jack (E11-0389-05)Miniature phone jack (E11-0291-05)Pin jack (E63-1247-05)Screw terminal board (E70-0150-05)x2Pin jack (E63-1293-05)x2Pin jac
7、k (E63-1317-05)x2Miniature phone jack (E11-0293-05)Metallic cabinet (A01-3894-01) Tuner assy (W02-2974-15)Oscillating module(W02-2732-05)Optical receiving module (W02-2731-05)Pin jack (E63-1315-05)70%MODELPARTS#BATTERYCOVERVR-7070AK7A70-1620-05A09-1274-08VR-7070AP7A70-1620-05A09-1274-08VR-7080AK8A70
8、-1619-05A09-1275-08VR-7080AP8A70-1619-05A09-1275-089ABBRI.Resetting the MicrocomputerThe microcomputer may malfunction (unit cannot be operated, orshows an erroneous display) if the power cord is unplugged whilethe power is ON, or due to some other external factor. If thishappens, execute the follow
9、ing procedure to reset themicrocomputer and return the unit to its normal operatingcondition.Unplug the power cord from the wall outlet, then plug itback in while holding down the POWER ON/STANDBY key.Please note that resetting the microcomputer will clear the contentsof the memory and returns the u
10、nit to the state it was in when it leftthe factory.Memory back up functionPlease note that the following items will be deleted from the unitsmemory if the power cord is disconnected from the AC outlet forapproximately 1 day.Power mode.Input selector settings.Picture output.Speaker ON/OFF.Volume leve
11、l.BASS, TREBLE, INPUT level. TONE ON/OFF. LOUDNESS ON/OFF.Dimmer level.MD/TAPE settings.Listen mode setting.Speaker settings. SW RE-MIX ON/OFF. Distance setting. Bass peak level. Input mode setting.Midnight mode setting.PRO LOGIC IImode setting. CS IImode setting. Broadcast band.Frequency setting.Pr
12、eset stations.Tuning mode.THX mode.DSP mode.ACTIVE EQ mode.SPEAKER EQ mode.FM indoor antenna (1)(T90-0905-05)AM loop antenna (1)(T90-0893-05)RF remote antenna (1)Refer to the table on this page below.Batteries (R6/AA) (2)VR-7070A/7080A2ACCESSORIES / CAUTIONSAccessoriesCautions REMOTE CONTROL vs MODE
13、LDIFFERENT POINTModelService ManualSurroundDisplaySubVR-7070 B51-5843-00X09-6760-10X25-6490-14VR-7070A-X09-6830-10X25-6620-10VR-7080 B51-5843-00X09-6760-10X25-6490-14VR-7080A-X09-6830-10X25-6620-10AudioChange point;R97,98,147,148,197,198,VR1-6,Q11-14,31-34,51-54,D23X08-3130-12X14-7630-10Note: Adiffe
14、rent information will be available from this service manual. Pls refer to original service manual(B51-5843-00), too.3UWYVX2 1357 46Refer to the schematic diagram for the value of resistors and capacitors. PC BOARDW52W53C215W54C216C127C128C129C101W8C102C103C104C105C106C107C108C109C110C111C112C113C114
15、411 8916C115C116C117C118C119C120C121C124C123C122C201C20271IGOC203R218C205C206C207C208C209C210C211C212C213C214L201L202R101R102R103R104R105R106R107R108R109R110R111R112R113R201R202R203R204R205R206R207R208R209R210R211R212R213R214R215R216R217W17W10R114W18W13W11W9R120C133W1W2W5W12W15W4W6W31178 147148W14C1
16、34W16W19W68W42W20C135C136C130 C131C132R121R122C137C138C139R431R337R336R334R333R328R327R325R321C312C310C317C315C3021 2W23W24C307C308R338C305R335C306C303W22W21C304C301R331W25R332C438C313C311W41R349R339 W30R340C309C457R461R507R457R463C451SWchW31R356R308R317R307R318R357R350R315R305R326R316R347R348C435C4
17、39R330C433R358R310R455R329R320R319R309R355R352C434C440R360R359R351C436R306R313R303R323R353 R345R362R324R314R311R301R346R354R341R343R423C429 R417CchR445R505C445R405W47SBchR418 R424C430R406C412C446R506C452R453R459C453W38R4621458145814581458W51C449C458 R456SBchW37R458R454C454W67R460R464W39R411C450C411W
18、35R439W49R440C406C405R412C426R502R414 R420C31641191182R442C402W36W44R421R302W26R322R312R342R344SLchR432R433C431R430SRchC437R428W66W40C409R503C427 R415R446R403C410R404R422C428 R416C403C444R444 R504R410FLchFRchR427R426R425R413 R419W28W32C432C407C425R501W34R401R441C441R407C442C401C408 R402R408R409R443R
19、437C443W63W64W61W43W46R438C404C459R448C419R449W58W60C448R435W55W57W56C447R447R450W59C420R436R451W62W65W33W29W27R452W50W45W48R434BBEEBEBEEBEBEBEBEBEBEBEBEBEB41EBEBEBEBEBEBBEBEBEBEBEBEBEBEBEBEBEEBBEBEBED206CN202D205D201D202D203D204J102P201Q201Q202Q203Q204J101CN101CN201CN304J303J302J301CN302Q302Q307Q31
20、7Q309WH2Q316Q308Q318Q315 Q305Q319Q310Q320Q313 Q303Q306Q304Q301Q314Q311Q411Q407Q412Q408CN303Q403Q312WH1Q402D401Q401Q404Q406Q405Q409WH1D402CN301WH2J202J201IC101IC102IC201IC202IC403IC404IC402IC401(J70-1704-02) X25-6620-10 A/2X25 B/2IR REPEATERIR INCrCbYMONITOR OUTDVD INYCbCrVIDEO3 INCOMPONENT VIDEOSUB
21、WOOFERSUB WOOFERCENTERLRSURROUND BACK/BACKSURROUNDSURROUNDSURROUNDFRONTROOM BSPEAKERSPRE OUT4AOAPARAQAS2 1357 46VR-7070A/7080AX25-6620-10 (1/2)+3.3VVDD100P R90775C917VCCY C Y C Y C8C915IN1GNDIN1Y5Y7 C7 C547P100KR905C905100KR90647PC90647P75R903C90375R90447PC9040.014C9103 2VCCIN2SW25IN3SW16OUT710 1/4W
22、R916C5Y3C7100P C918+11.5V0.01C909R9080.01C9167547u25+C91210 1/4WR915+11.5VY575 6VCC3IN24SW2IN32SW1OUT+11.5V47u25 C913470u16+CXY347P75R901C90175R90247PC90218X601R6041MR6031M4213R602220GND675C6021000P12.288MHzCLRBAC60427P132C60322PRX/CXVCC867140.01C920C9190.0181GNDGND4+2.5VQ536+5V67+3.3V100PCTLB2+12VR
23、911 4.7KY7R91710KR912 200CTLA4+12V6 5V.MUTE3+2.5VC908100PC9072.2R921+5V +3.3VVID. D GND1R683470R6844708109R81 1113121114+5V+5V C672+C669C676SCDI0R804 R803 R802 R801 R800R799R8061 1/4WR623 10K+2.5V0.01R6263.3KC612224.7K4.7K20R633R632C607 22P C675 22PR610220C6081000PR601220+3.3VR810R60510KC6010.01C606
24、0.01R609100KC6050.011R809147u25 C616+2.5VR629 10KC6140.01C615 470P+C613 2.2u50R63033K+R634470R6311/4W1R8050.010.01100+2.5VR680R60822013+3.3V218 470+2.5V3622 39+5V13AU DATA1AU DATA0LR CLKS CLK M CLKVD1D GND1AU DATA3WRLR CLK N1FIL T1CMP REQ31CLK IN223029FIL T2CLK SEL3233CMPCLKCMPDAT22282227AU DA T A 2
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