JVC-RX8020RBK-avr-sm 维修电路原理图.pdf

《JVC-RX8020RBK-avr-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《JVC-RX8020RBK-avr-sm 维修电路原理图.pdf（38页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUALAUDIO/VIDEO CONTROL RECEIVERNo.21161Oct. 2002COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.RX-8020VBKRX-8020VBKContentsSafety precautions -1-2Disassembly method -1-3Adjustment method -1-9Self-diagnose function-1-10Description of major ICs -1-1231Area suffixUJ - U.S.MilitaryMENU 231564897

2、/P0+1010BOOSTFRONTLMENUENTERFRONTRBASSDIMMERTESTCENTERSUBWFRDIGITAL EQSBACKLSBACKRSURRLSURRRMUTINGCH/LEVELTV VOLPLAYSTOP/REWDOWN TUNING UPFF/EXITVOLUMECATV/DBSCONTROLTV/VIDEORECPAUSESLEEPPAUSESETRETURNFM MODE100+CONTROLRM-SRX8020J REMOTE CONTROLCATV/DBSVCR1TVAUDIODSPOFFDVD MULTIDVDUSBCDCDRTAPE/MDTV/

3、DBSVIDEOPHONOFM/AMVCR1VCR 2SURROUNDSURR/DSPANALOG/DIGITALA/V CONTROL RECEIVERINPUTDIRECTANALOGTEXTDISPLAYSOUNDCONTROLDOWNUPEFFECTSETTINGDIGITALEQTV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTIINPUTANALOG/DIGITALDSPS-VIDEOVIDEOVIDEOLAUDIORSURROUNDSUBWOOFER OUT ON/OFFSPEAKERS ON/OFFFM/AM TUNINGFM/AM PRESETFM

4、MODEMEMORYPHONES1STANDBYUSB AUDIOSURROUND/DSPOFFFM/AMUSB AUDIOTAPE/MDCDRCDPHONOLEVELADJUSTRX-8020VAUDIO/VIDEO CONTROL RECEIVERANALOG DIRECTBASS BOOSTMASTER VOLUME2SOURCE NAMESOUCE NAMESTANDBY/ONINPUT ATTPUSH OPENRadioFans.CN 收音机爱 好者资料库1-9RX-8020VBKAdjustment method1.Set the volume control to minimum

5、 during this adjustment.(No signal & No load)2.Set the surround mode OFF.2.Turn VR787 and VR788 fully counterclockwise to warm up before adjustment. If the heat sink is already warm from previous use the correct adjustment can not be made.3.For L-ch,connect a DC voltmeter between B2204 and B2205 (Lc

6、h) And,connect it between B2213 and B2214(Rch).4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 for R-ch so that the DC voltmeter value has 1mV10mV.1.Tuner range FM 87.5MHz108.0MHz AM(MW) 531 kHz to 1 602 kHz (at 9 kHz intervals) 530 kHz to 1 600 kHz (at 10 kHz intervals)Tuner sect

7、ionPower amplifier sectionB2213, B2214VR787 (Lch)VR788 (Rch)Heat sinkRch amp. boardAdjustment of idling currentMeasurement location B2204-B2205(Lch) , B2213-2214(Rch) Adjustment part VR787(Lch) , VR788(Rch)AttentionThis adjustment does not obtain a correct adjustment value immediately after the ampl

8、ifier isused (state that an internal temperature has risen). Please adjust, after you turn off amplifier and internal temperature falls.* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR787,VR788) in the direction of countercloc

9、kwise. B2204, B2205Lch amp. boardRadioFans.CN 收音机爱 好者资料库RX-8020VBK1-10Self-diagnose function1. Detection of abnormal power supply and voltage When the power is turned ON, if an abnormality is detected during the signal input at the A/D port (IC901, pin 2-5, 7) for one second continuously, the status

10、 will become STANDBY mode immediately. When the power is turned ON again, detection of abnormal power supply and voltage will not be carried out during the first 4 seconds. Given below is a list of threshold values at the detection of abnormalities. 2. Initial setting on shipTo gain the initial sett

11、ing on ship, put the power plug in the socket while pressing DOWN key and UP key together simultaneously, then turn the power ON. 3. Test modeTo enter the test mode, put the power plug in the socket while pressing EFFECT key and UP key together simultaneously, then turn the power ON.Workings of test

12、 mode: All FLs are turned ON for 3 seconds. (the FLs, which are divided in two groups, are turned ON alternatively) A Faster volume UP/DOWN operation can be achieved with the remote controller.When the power is turned OFF, the test mode will be released.The FL display returns to normal after the thr

13、ee seconds. Then the STANDBY LED is turned ON (flashing ON and OFF for each one second) to show the present status being a test mode. Pin 2 Micro-computer+5V Pin 3 Digital+5VPin 4 Analog+5VPin 5 +12V Pin 7 Tuner+9VAt abnormal state (Low voltage) Analog value 0 - 2.2V Analog value 0 - 2.2V Analog val

14、ue 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2VAt normal stateAnalog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V At abnormal state (High voltage) Analog value 2.8 - 5.0VAnalog value 2.8 - 5.0VAnalog value 2.8 - 5.0VAnalog v

15、alue 2.8 - 5.0VAnalog value 2.8 - 5.0V 1-11RX-8020VBKInformation on VERSION of system microcomputer (IC901) Example : 2002/2/20 9th ROM Display the local version (IC581) Example : Ver_1.00Display the local creation date Example : 2002/2/10Display the DSP version (IC511) Example : DSP Rev41Display th

16、e input sourcesHowever, since it is the source of DIR processing, actual source may be contradicted. Example : ANALOG08Display the input Fs Example : Fs48kHzDisplay the input format Example : PCMDisplay the input channel Example : 2/0.0S 0 0 0 1 2 0 0 2 0 2 2 0 94. Self-diagnoseV0DADDDDDDUFFFFNUPAAD

17、DDAMNU122232323ND1D2D3D4 D5 D6 D7e2SNIIIIIINssssGNCCCTTTAPGN/Gr/PAGGGGGGLLM33SSSCEL0000011220RLIIIIIIO3449D O - -GD O.D12eOTTTTTT C2486A C E EE A C0000 0 0 0 0 0 A./vGAAAAAA KkkkkT K X SS T K T014xLLLLLL HHHHA A LD A001x1 2 3 4 5 zzzz MD tMTo enter the self-diagnose mode, put the power plug in the s

18、ocket while pressing SETTING key and UP key together simultaneously, then turn the power ON. While the working status is being displayed, the each item can be switched with the UP/DOWN key operation.When the power is turned OFF, the self-diagnose mode will be released.During the self-diagnose mode,

19、the STANDBY LED is turned ON (flashing ON for one second then OFF for three seconds). FL transient display will be carried out as follows. When the transient display is not carried out, normal display/workings are carried out. ABCDEFG123452-1RX-8020VBK LVA10221-5 LVA10220-4 LVA10220-2 LVA10220-1CN71

20、1CN701CN712CN702CN721CN722CN703CN713CN723CN715CN705CN716CN706CN813CN823CN814CN881FW881Q1751Q1752RY831RY832RY851RY852Q761Q763LchQ762Q764RchCQ1851Q1853Q1852Q1854RLchRRchSPK1SPK2CENTERREAR LREAR RCN824LRLRLLRRRLRLRRRRCchCN101CN301CN303CN601CN201CN241CN361CN501CN205CN243CN311CN351CN313CN371CN416CN587CN5

21、81CN200CN204CN206CN240CN242CN731CN732CN400CPUIC901IC380SWIC383IC382IC381IC384IC389IC388IC390RL/RRSBL/SBRSBL/SBRSBL/SBRRL/RRRL/RRC/WL/RIC396COMPU LINKTEXT LINKTEXTTEXTTEXTMONICCL/RL/RRL/RRCL/RAUDIOAUDIOAUDIOAUDIOVido5, 6Vido5, 6Vido5, 6V SIGV SIGV SIGDVD REARDVD REARDVDSTBMonitor outDATADATADSP CLKDA

22、TABlock diagramsLVA10336-2LVA10338-1LVA10009LVA10337LVA10336-4LVA10336-5LVA10336-1CN381 LVA10221-1LVA10221-2S video(Refer to the following page.)(Refer to the following page.)(Refer to the following page.)(Refer to the following page.)VideoDSPVideo audioIC3997.1chPreoutIC397IC398IC386DVD CENTERDVD S

23、UB WOOFERDVD CENTERDVD SUB WOOFER LVA10220-3 LVA10338-7CN393CN392 LVA10336-6SYSTEM CONTROLLERIC 400FL DISPLAYDI400KEYCN410VIDEOY/CAUDIOFRONT AUDIOFRONT VIDEOFRONT Y/CUSBUSB DACIC 410LVA10218-1CN406FMAMTUNERTUNERTUNERDATATUNER RF 101MW RF & OSCT111AM/FM DETIC102PLLIC121CN111CN244CDL/RTAPE P.BTAPE REC

24、CDR P.BCDR RECDVD REARIC 303MAIN_STK,CLK,DATMAIN_STK,CLK,DATSOURCE SELECTORIC 302PHONOL/REQIC 301IC 304LVA10336-3ABCDEFG123452-3RX-8020VBKSHEET 1/10Parts are safety assurance parts.When replacing those parts makesure to use the specified one.Power supply sectionSHEETNUMBER1/102/103/104/105/106/10 7/

25、10 8/10 9/10 10/10POWER SUPPLYMAINAUDIOAUDIO SIGNAL / VIDEO SIGNAL INPUTDVDAUDIO AMP (FRONT CHANNEL)AUDIO AMP (CENTER, REAR CHANNEL) DSPSYSTEM CONTROLTUNERCIRCUIT DESCRIPTIONSheet 3/10Relay boardPower trans1 boardPower trans2 boardPower/fuse boardPower supply boardSheet 9/10Sheet 2/10Standard schema

26、tic diagramsF61Q71D72VS1F62CN402CN71Q53R53D75R73D74C72D73D71C70TH71R74FW51C62C61C68C69C65C66C63D62D63D61Q51Q52D53C52D55D57C54RY1PW19PW40PW29PW28C51F2PW30PW17PW27PW20PW23PW25PW24PW18PW22PW12PW14PW15PW21PW11PW16PW13PW10F1TA1TA2PW26F4EP51CN55R61CN56CN811131132113112111123122121134133CN72CN82R72R52Q74C7

27、4C73C71D64D52C53D51D54C55D56R51R54C1T2KTA1046/Y/11ES2-T4QSW0812-001KRC105M6.8MTZ8.2JC22kMTZ33JC22/5011ES2-T411ES2-T4220/50QAD0095-4R7100k0.1MY0.1MY0.047MY0.047MY3300/351000/350.1MY11ES2-T410E2-FD10E2-FD2SD2395/EF/KTD863/Y/11ES2-T4470/63MTZ12JC1SS133470/16QSK0098-0010.0047/1008.23.3k3.3kKTC3200/GL/1/

28、5022/50100/6311ES2-T411ES2-T40.004711ES2-T411ES2-T40.0047MTZ6.2JB15k8200.0047QQT0281-004HABCDEFG123452-4RX-8020VBKRX-8020VBKSHEET 2/10Sheet 3/10Parts are safety assurance parts.When replacing those parts makesure to use the specified one.FRONT SignalCENTER SignalREAR SignalMain & Speaker terminal se

29、ctionSheet 7/10Sheet 7/10Sheet 7/10Sheet 6/10Sheet 6/10Sheet 5/10Sheet 5/10Sheet 1/10Main boardSpeaker boardHeadphone jack boardSheet 3/10Q812R816CN701CN702R811R814D816D811Q811CN823C816CN814CN824R823CN721CN723R841R842R843R844R845RY871CN881D843CN831R831R832D831RY831ST831S831R851R852ST851CN813R833C835

30、C885C888C887C881C893C884C891C892C883D844D842J91R91R92C91FW881C92FW931CN703CN705CN706Q831Q832Q830D841C850R864R865R866Q833Q836Q835Q834D846D845R867C834C846C847C839L844L845L843B124B125B123C801D801D803D802D804C802R862R859R812R813C811R856R857R815R860R863Q824Q823Q825C823C824R825R826R824D825D871R871D832RY83

31、2RY851RY852D851D852R837R838R834C843C844C838C837C845C842C841C836C848C886C890C889R885R888R887C851C853C852R855R861R858C833C840CN801C805C807C808R801R802KTC3200/GL/3.3k10kMTZ18JC2SD2395/EF/47/2510k100k82k100k100k82kQSK0109-0011SS13312121SS1331212100.0220.0470.0470.047330p220p330p220p220p330p1SS1331SS1334

32、70470470p470p4.7/504.7/504.7/50KRC109MKRC109MKRC109MMTZ5.1JC4.7/504.7k4.7k4.7kKRC109MKRC109MKRC109MKRC109M1SS1331SS13310k0.022220p220p0.0220.450.450.4530DF2-FC30DF2-FC30DF2-FC30DF2-FC22k22k3.3k47k0.004722k6.8k126.8k6.8kKTC3200/GL/KTC3199/GL/KTA1268/GL/47/1610/2510k100k130k1SS1331SS133121SS1331SS1331

33、SS133101010220p220p0.0220.022220p220p220p0.022220p220p220p220p1010103.9k4.7k4.7k0.0220.0226800/716800/71100k100kABCDEFG123452-5RX-8020VBKTUNER SignalSHEET 3/10Parts are safety assurance parts.When replacing those parts makesure to use the specified one.Audio sectionSheet 4/10Audio boardSheet 4/10She

34、et 4/10Sheet 4/10Sheet 8/10Sheet 5/10To CN111Sheet 10/10To CN112Sheet 10/10Sheet 2/10Sheet 2/10Sheet 9/10Sheet 1/10D971Q971R924C971C972R971R973Q951C994Q961C951C952R951R953R954C961C962R963R961Q931R955D931R933C932C931Q921R956D921R923C922C921Q941D941R943C942C941D951D961R931R932R921R922R941R942IC901X901

35、CN933D955R916CN400CN101CN241CN102R980R981R982R983R984R985R986R987C904D993R911FW831CN601C975R993Q908FL992FL991R914C991C992C993CN931R995R997R978R976R936R935R934R937R938R939R944R945R946D956CN303CN81CN932CN301CN201R915R918R999EP901C985R913R965D975C902C901C903R903D902D901D900Q901C905IC903R910R966D904R908

36、R975Q903Q904Q906Q907R991R992R994R996R998R979R977R925R926R927R928R929D976D977D978D979R969R968R967R940R930C981C982C983C984MTZ10JC2SD2395/EF/10k100/250.0047123.3k2SD2395/EF/270PKTA1046/Y/100/250.0047122.2k220100/250.00472.2k122SD2395/EF/220MTZ6.2JC2.7k0.0047470/162SD2395/EF/220MTZ5.6JC2.7k0.0047100/252

37、SD2395/EF/MTZ5.6JC2.7k0.0047100/25MTZ13JCMTZ13JC333312121212MN101C49GJY8MHz1SS133-T23.92202202202202202202202202.2/501SS133-T24.7k470/6.36.2kKRC105MQQR0590-001QQR0590-0013.90.00560.0056100p13k15k4.7k4.7k2202202202202202202202202201SS133-T21SS133-T23.91810k0.013.910k1.5100/6.32200/6.333011ES2-T411ES2

38、-T411ES2-T4KRC107M0.022IC-PST913922k10k1SS133-T222k22KRC105MKRC105MKRC105MKRC105M4.7k4.7k5.1k3.3k5.6k4.7k4.7k22022022022022010k10k10k3.310k330p330p330p330p+15V-15VMAIN_STBMAIN_CLKMAIN_DATSrBL_MUTEF1_RELAYF2_RELAYMAIN_STBMAIN_CLKMAIN_DATFR_RELAYC_RELAYVOL_STBSUR_RELAYSrBR_MUTEVIDEO5VOL_CLKVOL_DATVOL_

39、STBVOL_CLKVOL_DATSW_MUTESUR_RELAYSrBL_MUTESrBR_MUTES_MUTEOSD_DATOSD_CSVIDEO1VIDEO2VIDEO3VIDEO4OSD_CLKTUNER_MUTETUNEDSTEREORDS_STM_CLKM_STATUSM_COMMANDM_STATUSM_CLKM_RESETM_CSM_CSM_COMMANDM_BUSYM_RESETSTANDBY_LEDVCR_S/CC_RELAYF2_RELAYF1_RELAYHP_RELAYF1_RELAYF2_RELAYTUNER_CKC_RELAYSUR_RELAYTUNER_CE4/8

40、_INTUNER_DATARDS_DATARDS_CLKDSPCLKVIDEO6S_MUTESW_MUTEVIDEO1VIDEO2VIDEO3VIDEO4OSD_CSOSD_DATOSD_CLKDVD_S/CDBS_S/CVCR1_S/CVCR2_S/CHP_RELAYVIDEO_S/CDBS_S/CVCR2_S/CVCR1_S/CDVD_S/CTUNER_MUTETUNER_DATATUNER_CKTUNER_CERDS_DATARDS_CLKTUNEDSTEREORDS_STM_BUSYSTANDBY_LEDPROTECTVIDEO54/8_OUTPROTECT4/8_OUTDSPSTAT

41、USDSPRESETDSPCOMMANDDSPSTATUSDSPCLKDSPREADY4/8_INVIDEO6DSPCOMMANDDSPREADYDSPRESETHABCDEFG123452-6RX-8020VBKRX-8020VBKSHEET 4/10Audio / Video Audio / Video / S video signal input sectionVIDEO AUDIO SignalSheet 3/10Sheet 9/10Sheet 9/10Sheet 3/10Sheet 3/10Sheet 3/10Sheet 5/10Video audio boardS video bo

42、ardVideo boardAudio input boardSheet 5/10Sheet 9/10Sheet 5/10Sheet 5/10AUDIO SignalTUNER Signal PHONO SignalParts are safety assurance parts.When replacing those parts makesure to use the specified one.CN200C226R271CN242CN204R274C270C271R266R268R267R269CN244C253C268C269R273IC241IC242C246C251R244R247

43、C242C245C247C250C252C241C244C249R254R255Q240Q245Q247Q241C275C276D241C216CN206IC201IC202IC203R200C208C209Q200R201R209R203R211R205R207R208R202R210R204R212R206Q201C201C202C203C204C205C206C207Q202Q203R216C211C212C213C214C215C219C220L200R213R225C273R272C274C277C272Q242Q243R253D240CN240Q244Q246Q207R231C23

44、1IC371C385C333C389C334CN416CN313CN311CN371C323C324C325C326C327C328C329C330C331C332C371C372R373R375R377R379R381R374R376R378R380R382C373C374C386C375C376C377C378R372R371C379C380J371J372C381C382R389R390J373R336J301R333R334IC372R395R391R393IC372C395C393R335C391C397R397R396R392R394C396C394C392C398R398R316

45、R315C335C336C339IC304IC304C363C364C361C362IC303IC303C341C342C343C344C321C322R323R325R327R329R331R324R326R328R330R332IC301IC301R305R306C301C302R302R301R307R309C305C307C306C308R308R310C311C312J302J303CN351C260R240R242R245R241R243R246R248C256C257C259C258R281R283C261R249C255C254J242J241D200D201R222R223J

46、201J202J203R224R214R215R217Q206Q205Q204R219R220R221C217C218X200C221C222C223C224C225C210R218R275R276J243R250R251R280R282R284R285Q208R232C280R387R388R385IC302R363R364R343R344R346R345C309C310C303C304R303R304C314C313R311R312C315C316R361R362R365R366R341R342R386C281C282C283C284C285C286C287QGB2510K1-1147p3

47、.3QGB1214K1-10SQGB1214K1-08S75100p100p757547k47kQGA2501F1-0410p47p47P47kBA7626BA76250.0470.04775754.7/504.7/50470/6.34.7/50470/6.30.0470.0470.04715k15kKTA1267/YG/-TKRC110M-TKRC107M-TKTA1267/YG/-T47p47p1SS355-X0.047QGA2501F1-02BA7625NJM2285V-WMB90088PF-1317547/160.01KTA1267/YG/-T7547k7547k75330330753

48、307533075KTA1267/YG/-T4.7/504.7/50470/6.34.7/50470/6.34.7/50470/6.3KRC110M-TKRC107M-T3004.7/5047/160.014.7/504.7/5015p10p22u47k2.20.04775470/6.34.7/500.047KTA1267/YG/-TKTA1267/YG/-T15k1SS355-XQGB2510K1-12KRC110M-TKRC107M-TKTA1267/YG/-T2.2k4.7/50TC9163AF-X22/25560pQGA2501F1-06QGB2510K1-12QGB2510K1-11

49、QGB1214K1-12S220p220p220p220p220p220p220p220p220p220p220p220p470470470470470470470470470470220p220p22/25220p220p220p220p470470220p220pQNN0056-001QNN0056-001220p220p470470QNN0056-00168QNN0056-001470470BA15218F-XE5.1k5.1k10kBA15218F-XE120p0.00126810/5010/50100k5.1k5.1k10k120p0.001210/5010/50100k330330

50、22/2522/25560pBA15218F-XEBA15218F-XE4.7/504.7/504.7/504.7/50BA15218F-XEBA15218F-XE10/5010/5010/5010/50220p220p470470470470470470470470470470NJM4580D-DNJM4580D-D6206204.7/504.7/502.2k2.2k39k470k0.00180.00680.00180.006839k470k4.7/504.7/50QNN0056-001QNN0058-001QGB1214K1-14S0.0477575757575751800.0147/16