Jvc-RX-8020-RBK-Service-Manual电路原理图.pdf

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.MilitaryMENU231564897/P0 +1010BOOST FRONT LMENUENTERFRONT RBASSDIMMERTEST CENTER SUBWFRDIGITAL EQ SBACK L SBACK RSURR L SURR RMUTINGCH/ LEVEL TV VOLPLAYSTOP/REWDOWN TUNING UPFF/EXITVOLUMECATV/DBSCONTROLTV/VIDEORECPAUSESLEEPPAUSESETRETURN FM MODE 100+CONTROLRM-SRX8020J REMOTE CONTROLCATV/DBS VCR1 TV AUDIODSPOFFDVD MULTIDVDUSBCDCDRTAPE/MDTV/DBS VIDEO PHONOFM/AMVCR1 VCR 2SURROUND SURR/DSP ANALOG/DIGITALA/V CONTROL RECEIVERINPUTDIRECTANALOGTEXTDISPLAYSOUNDCONTROLDOWN UPEFFECT SETTINGDIGITALEQTV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTIINPUTANALOG/DIGITALDSPS-VIDEO VIDEOVIDEOLAUDIORSURROUNDSUBWOOFER OUT ON/OFFSPEAKERS ON/OFFFM/AM TUNING FM/AM PRESET FM MODEMEMORYPHONES1STANDBYUSB AUDIOSURROUND/DSPOFFFM/AMUSB AUDIOTAPE/MDCDRCDPHONOLEVELADJUSTRX-8020V AUDIO/VIDEO CONTROL RECEIVERANALOG DIRECTBASS BOOSTMASTER VOLUME2SOURCE NAMESOUCE NAMESTANDBY/ONINPUT ATTPUSH OPEN1-9RX-8020VBKAdjustment method1.Set the volume control to minimum 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 (Lch)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 rangeFM 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 sectionPower 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 amplifier 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 variableresistance (VR787,VR788) in the direction of counterclockwise. B2204, B2205Lch amp. boardRX-8020VBK1-10Self-diagnose function1. Detection of abnormal power supply and voltageWhen 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 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 setting 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 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 three 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+5VPin 3Digital+5VPin 4Analog+5VPin 5+12V Pin 7 Tuner+9VAt abnormal state(Low voltage) Analog value0 - 2.2V Analog value0 - 2.2V Analog value 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 value2.8 - 5.0VAnalog value2.8 - 5.0VAnalog value2.8 - 5.0VAnalog value2.8 - 5.0VAnalog value2.8 - 5.0V 1-11RX-8020VBKInformation on VERSION of system microcomputer (IC901) Example : 2002/2/20 9th ROMDisplay the local version (IC581)Example : Ver_1.00Display the local creation dateExample : 2002/2/10Display the DSP version (IC511)Example : DSP Rev41Display the input sourcesHowever, since it is the source of DIR processing, actual source may be contradicted.Example : ANALOG08Display the input FsExample : Fs48kHzDisplay the input formatExample : PCMDisplay the input channelExample : 2/0.0S0001 2002022094. Self-diagnoseV0DADDDDDDUFFFFNUPAADDDAMNU122232323ND1D2D3D4D5D6D7e2SNIIIIIINssssGNCCCTTTAPGN/Gr/PAGGGGGGLLM33SSSCEL0000011220RLIIIIIIO3449DO-GDO.D12eOTTTTTTC2486ACEEEAC0000 0 0 0 0 0 A./vGAAAAAAKkkkkTKXSSTKT014xLLLLLLHHHHAALDA001x1 2 3 4 5 zzzzMDtMTo enter the self-diagnose mode, put the power plug in the socket 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, 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. ABCDEFG12 3 452-1RX-8020VBKLVA10221-5LVA10220-4LVA10220-2LVA10220-1CN711CN701CN712CN702CN721CN722CN703CN713CN723CN715CN705CN716CN706CN813CN823CN814 CN881FW881Q1751Q1752RY831RY832RY851RY852Q761Q763LchQ762Q764RchCQ1851Q1853Q1852Q1854RLchRRchSPK1SPK2CENTERREAR LREAR RCN824LRLRLLRRRLRLRRRRCchCN101 CN301 CN303 CN601 CN201 CN241CN361 CN501 CN205 CN243CN311CN351CN313CN371CN416CN587CN581CN200CN204CN206CN240CN242CN731CN732CN400CPUIC901IC380SWIC383IC382IC381IC384IC389IC388IC390RL/RRSBL/SBRSBL/SBRSBL/SBRRL/RRRL/RRC/WL/RIC396COMPU LINKTEXT LINKTEXTTEXTTEXTMONICCL/RL/RRL/RRCL/RA U DIOA U DIOAUDIOAUDIOVido5, 6Vido5, 6Vido5, 6V SIGV SIGV SIGD VD REARDVD REARDV DSTBMonitor outDATADATADSP CLKDA T ABlock diagramsLVA10336-2L V A10338-1LVA10009LVA10337LVA10336-4LVA10336-5L V A10336-1CN381LVA10221-1LVA10221-2S video(Refer to the following page.)(Refer to the following page.)(Refer to the following page.)(Refer to the following page.)VideoDSPVideo audioIC3997.1chPreoutIC397IC398IC386D V D CENTERD V D SUB W OOFERDV DCENTERDV D SUB W OOFERLVA10220-3LVA10338-7CN393CN392LVA10336-6SYSTEM CONTROLLERIC 400FL DISPLAYDI400KEYCN410VIDEO Y/CAUDIOFRONT AUDIOFRONT VIDEOFRONT Y/CUSBUSB DACIC 410LVA10218-1CN406FMAMTUNERTUNERTUNERDATATUNER RF 101MW RF & OSCT111AM/FM DETIC102PLLIC121CN111CN244CDL/RT APE P. BT APE RECCDR P. BCDR RECDV D REARIC 303MAIN_STK,CLK,D A TMAIN_STK,CLK,D A TSOURCE SELECTORIC 302PHONOL/REQIC 301IC 304LVA10336-3ABCDEFG12 3 452-3RX-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 7/10 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 schematic diagramsF61Q71D72VS1F62CN402CN71Q53R53D75R73D74C72D73D71C70TH71R74FW51C62C61C68C69C65C66C63D62D63 D61Q51Q52D53C52D55D57C54RY1PW19PW40 PW29 PW28C51F2PW30 PW17PW27PW20PW23PW25 PW24PW18PW22PW12PW14PW15PW21PW11PW16 PW13 PW10F1TA1TA2PW26F4EP51CN55R61CN56CN811131132113112111123122121134133CN72CN82R72R52Q74C74C73C71D64D52C53D51D54C55D56R51R54C1T2KTA1046/Y/11ES2-T4QSW0812-001KRC105M6.8MTZ8.2JC22kMTZ33JC22/5011ES2-T411ES2-T4220/50QAD0095-4R7100k0.1MY0.1MY0.047MY0.047MY3300/351000/35 0.1MY11ES2-T410E2-FD10E2-FD2SD2395/EF/KTD863/Y/11ES2-T4470/63MTZ12JC1SS133470/16QSK0098-0010.0047/1008.23.3k3.3kKTC3200/GL/1/5022/50100/6311ES2-T411ES2-T40.004711ES2-T411ES2-T40.0047MTZ6.2JB15k8200.0047QQT0281-004HABCDEFG12 3 452-4RX-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 sectionSheet 7/10Sheet 7/10Sheet 7/10Sheet 6/10Sheet 6/10Sheet 5/10Sheet 5/10Sheet 1/10Main boardSpeaker boardHeadphone jack boardSheet 3/10Q812R816CN701CN702R811R814D816D811Q811CN823C816CN814CN824R823CN721CN723R841R842R843R844R845RY871CN881D843CN831R831R832D831RY831ST831S831R851R852ST851CN813R833C835C885C888C887C881C893C884C891C892C883D844D842J91R91R92C91FW881C92FW931CN703CN705CN706Q831Q832Q830D841 C850R864R865R866Q833Q836Q835Q834D846 D845R867C834C846C847C839L844L845L843B124B125B123C801D801D803D802D804 C802R862R859R812R813C811R856R857R815R860R863Q824Q823Q825C823C824R825R826R824D825D871R871D832RY832RY851RY852D851D852R837R838R834C843C844C838 C837C845C842 C841C836C848C886C890C889R885R888R887C851C853C852R855R861R858C833C840CN801C805C807C808R801R802KTC3200/GL/3.3k10kMTZ18JC2SD2395/EF/47/2510k100k82k100k100k82kQSK0109-0011SS13312121SS1331212100.0220.0470.0470.047330p220p330p220p220p330p1SS1331SS133470470470p470p4.7/504.7/504.7/50KRC109MKRC109MKRC109MMTZ5.1JC4.7/504.7k4.7k4.7kKRC109MKRC109MKRC109MKRC109M1SS1331SS13310k0.022220p220p0.0220.450.450.4530DF2-FC30DF2-FC30DF2-FC30DF2-FC22k22k3.3k47k0.004722k6.8k126.8k6.8kKTC3200/GL/KTC3199/GL/KTA1268/GL/47/1610/2510k100k130k1SS1331SS133121SS1331SS1331SS133101010220p220p0.022 0.022220p220p 220p0.022220p220p220p220p1010103.9k4.7k4.7k0.0220.0226800/716800/71100k100kABCDEFG12 3 452-5RX-8020VBKTUNER SignalSHEET 3/10Parts are safety assurance parts.When replacing those parts makesure to use the specified one.Audio sectionSheet 4/10Audio boardSheet 4/10Sheet 4/10Sheet 4/10Sheet 8/10Sheet 5/10ToCN111Sheet 10/10ToCN112Sheet 10/10Sheet 2/10 Sheet 2/10Sheet 9/10 Sheet 1/10D971Q971R924C971C972R971R973Q951C994Q961C951C952R951R953R954C961C962R963R961Q931R955D931R933C932C931Q921R956D921R923C922C921Q941D941R943C942C941D951D961R931R932R921R922R941R942IC901X901CN933D955R916CN400CN101CN241CN102R980R981R982R983R984R985R986R987C904D993R911FW831CN601C975R993Q908FL992FL991R914C991C992C993CN931R995R997 R978R976R936R935R934R937R938R939R944R945R946D956CN303CN81CN932CN301CN201R915R918R999EP901C985R913R965D975C902C901C903R903D902D901D900Q901C905IC903R910R966D904R908R975Q903Q904Q906Q907R991R992R994R996R998R979R977R925R926R927R928R929D976D977D978D979R969R968R967R940R930C981C982C983C984MTZ10JC2SD2395/EF/10k100/250.0047123.3k2SD2395/EF/270PKTA1046/Y/100/250.0047122.2k220100/250.00472.2k122SD2395/EF/220MTZ6.2JC2.7k0.0047470/162SD2395/EF/220MTZ5.6JC2.7k0.0047100/252SD2395/EF/MTZ5.6JC2.7k0.0047100/25MTZ13JCMTZ13JC333312121212MN101C49GJY8MHz1SS133-T23.92202202202202202202202202.2/501SS133-T24.7k470/6.36.2kKRC105MQQR0590-001QQR0590-0013.90.00560.0056100p13k15k 4.7k4.7k2202202202202202202202202201SS133-T21SS133-T23.91810k0.013.910k1.5100/6.32200/6.333011ES2-T411ES2-T411ES2-T4KRC107M0.022IC-PST913922k10k1SS133-T222k22KRC105MKRC105MKRC105MKRC105M4.7k4.7k5.1k3.3k5.6k4.7k4.7k22022022022022010k10k10k3.310k330p330p330p330p+15V -15VMAIN_STB MAIN_CLK MAIN_DATSrBL_MUTEF1_RELAYF2_RELAYMAIN_STBMAIN_CLKMAIN_DATFR_RELAYC_RELAY VOL_STBSUR_RELAY SrBR_MUTE VIDEO5VOL_CLKVOL_DATVOL_STB VOL_CLK VOL_DATSW_MUTE SUR_RELAYSrBL_MUTESrBR_MUTES_MUTEOSD_DATOSD_CSVIDEO1 VIDEO2 VIDEO3 VIDEO4OSD_CLKTUNER_MUTETUNEDSTEREORDS_STM_CLKM_STATUSM_COMMANDM_STATUSM_CLKM_RESETM_CSM_CS M_COMMANDM_BUSYM_RESETSTANDBY_LEDVCR_S/CC_RELAYF2_RELAYF1_RELAYHP_RELAYF1_RELAYF2_RELAYTUNER_CKC_RELAYSUR_RELAYTUNER_CE4/8_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_OUTDSPSTATUSDSPRESETDSPCOMMANDDSPSTATUSDSPCLKDSPREADY4/8_INVIDEO6DSPCOMMANDDSPREADYDSPRESETHABCDEFG12 3 452-6RX-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 board Video boardAudio input boardSheet 5/10Sheet 9/10Sheet 5/10Sheet 5/10AUDIO SignalTUNER SignalPHONO SignalParts are safety assurance parts.When replacing those parts makesure to use the specified one.CN200C226R271CN242CN204R274C270C271R266R268R267R269CN244C253C268 C269R273IC241IC242C246C251R244R247C242C245C247C250C252C241C244C249R254R255Q240Q245Q247Q241C275 C276D241C216CN206IC201IC202IC203R200C208C209Q200R201R209R203R211R205R207R208R202R210R204R212R206Q201C201C202C203C204C205C206C207Q202Q203R216C211C212C213C214C215C219C220L200R213R225C273R272C274C277C272Q242Q243R253D240CN240Q244Q246Q207R231C231IC371 C385C333C389C334CN416CN313CN311CN371C323C324C325C326C327C328C329C330C331C332C371C372R373R375R377R379R381R374R376R378R380R382C373C374C386C375C376C377C378R372R371C379C380J371J372C381C382R389 R390J373R336J301R333R334IC372R395R391R393IC372C395C393R335C391C397R397R396R392R394C396C394C392C398 R398R316R315C335C336C339IC304IC304C363C364C361C362IC303IC303C341C342C343C344C321C322R323R325R327R329R331R324R326R328R330R332IC301IC301R305R306C301C302R302 R301R307R309C305C307C306C308R308R310C311C312J302J303CN351C260R240R242R245R241R243R246R248C256C257C259C258R281R283C261R249C255C254J242 J241D200D201R222R223J201J202J203R224R214R215R217Q206Q205Q204R219R220R221C217C218X200C221C222C223C224C225C210R218R275R276J243R250R251R280R282R284R285Q208R232C280R387R388R385IC302R363R364R343R344R346 R345C309C310C303C304R303R304C314 C313R311R312C315C316R361R362R365R366R341R342R386C281C282C283C284C285C286C287QGB2510K1-1147p3.3QGB1214K1-10SQGB1214K1-08S75100p100p757547k47kQGA2501F1-0410p47p47P47kBA7626BA76250.0470.04775754.7/504.7/50470/6.34.7/50470/6.30.0470.0470.04715k15kKTA1267/YG/-TKRC110M-TKRC107M-TKTA1267/YG/-T47p 47p1SS355-X0.047QGA2501F1-02BA7625NJM2285V-WMB90088PF-1317547/160.01KTA1267/YG/-T7547k7547k75330330753307533075KTA1267/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-X22/25560pQGA2501F1-06QGB2510K1-12QGB2510K1-11QGB1214K1-12S220p220p220p220p220p220p220p220p220p220p220p220p470470470470470470470470470470220p220p22/25220p220p220p220p470470220p220pQNN0056-001QNN0056-001220p220p470 470QNN0056-00168QNN0056-001470470BA15218F-XE5.1k5.1k10kBA15218F-XE120p0.0012681