Kenwood KRF-V7771D Service Manual

Also see for KRF-V7771D: Instruction manual Instruction manual Setup Instruction manual Service manual

Contents

VIDEO 1AV AUX(FRONT)VIDEO 4VIDEO 3VIDEO 2VIDEO 1COMPVIDEOPLAYCOMPRECVIDEOQ52SN761200NIC51IC52(2/2)OUTQ55(OSD)1Vp-p/75(VISUAL)VIDEO 1VIDEO 2VIDEO 3VIDEO 4(FRONT)AV AUXRECPLAY(S1-VIDEO)1Vp-p/75MONITOR OUTQ15Q31Q16Q30Q12VIDEO 1Q14SN761200Nx2IC11,12CD1VIDEO1VIDEO2VIDEO3VIDEO4MD/TAPE1VIDEO1VIDEO2TAPE2VIDEO3VIDEO2VIDEO4AVRIC31+5.6VGNDD301-304FINAL TR.FINAL TR.GNDPRE DRIVEGNDPRE DRIVED251D252Q154RELAYDRIVER-17VGND+17V D81Q84AVRQ83AVRQ86AVRQ85AVRTo VIDEOTo VIDEO+5.0VGNDIC84AVR D88Q311AVR-35VFILFILSTROKE SWK6Q301RELAYDRIVERAC OUTLETD312K5T1D86IC83AVRIC82AVRAVRIC6,33-35+30VGNDD82CD1L8R7R8L7L6,L7L3,L5L2,L4L1,R8L1MONITORL4MD/TAPE1 L2R1,R7R2,R4R3,R5L8,R6R2R4R1R3L3IC3BUFFERREC OUTL7,R7L5,R5 L3,R3R5INL4,R4LINEBUFFERIC21(1/2)TUNER2.5mV/PHONOIC27IC1(2/2), IC2(2/2)IC4IC1(1/2), IC2(1/2)IC23IC1EQ(ANALOG)L2,R2L1,R1INPUT ATT IC21(2/2)IC49BUFFERBUFFERDOLBY DIG.PROLOGICCONVERTERFORMAT5VCS4226DIR AD/DAIC25IC30IC31IC2821kHz LPF21kHz LPF21kHz LPF21kHz LPFIC50IC52(2/2)IC54IC52(1/2)SUBCENTERLS,RS,FL,FR INV IC49CONFIG-2IC47,48LOW BOOSTDIRECTL2,R2L3,R3L1,R1L6,R6TONEIC43IC44L4,R4L8,R8 L7,R7VOLUMEVOLUMEVOLUMEVOLUMEIC21IC25(1/2)IC23IC25(2/2)IC51(1/2)IC53IC52(2/2)IC53Q10Q9-20dBQ5,6Q1,2ATT-20dBATT-20dBATT-20dBATT(1/2)IC26(2/2)IC24IC26IC22AMPBUFFERQ12Q7,8Q11Q3,4MUTEMUTEMUTEMUTE-20dB ATTA-MUTESW-MUTEMUTEQ35,4745,46MUTEQ36,48MUTE43,44MUTEK3K4K1(X25)(X07)29dB POWERAMPLIFIER(X25)(X07)29dB POWER(X25)(X07)29dB POWERK2BUFFERIC31(1/2)IC30BUFFERIC31(2/2)BUFFERRELAY ARELAY CSRELAY BA-MUTES-MUTESW-MUTEFRONTSWSL,SRCL,RFRONT BSL,SRCPHONESL,RFRONT ASPEAKERSPRE OUTPRE OUT1.0V/500LEDPEAK LEVELLED(X25) IC61FL DRIVER(X25) ED1FLKEY MATRIX(X25) A1REMOTE SENSORSUB u-COMDATA-OUTMAIN u-COM(X08) IC3(X08) IC1RDSu-COMREMOTE(X08) IC4 (X11) D21-24IR LED REMOTE OUTSIRIAL/PARALEL(X07) Q211-215FAN DRIVER FAN7(X08)IC5PROTECTIONTONE CONT.VIDEO SYNCWIDE V-MUTEDIGITAL INPUT SEL.VIDEO SEL.FANRELAY8443TUNER 925(A,B,CS,TR,POWER)TUNERDAC/ADC 10DATA-INSL16 TEXT(X08) J1(X08) J2SYSTEM CONTROL(X08) J3SYSTEM CONTROL200mV/47K200mV/220INOUTOTHERTC9164AF-2TC9163AF-2MAX:1.0VrmsIC42TC9163AF-1TX RXSDATA SBUSYCONFIGD/A,A/DRe-EQFAN ON/OFFFAN FRST/SLOWAMPLIFIERAMPLIFIERDIGITAL5ch SP. OUTPUTKRF-V7771D(E,T)IC53(X25)S1CD2/TAPE2PLAYINSWLS.RSC6chINPUTVIDEO4AV AUX IN(FRONT)RECOUTCOAXIALINOPTICALINIC26(AC3) MPEG3.3VCOMFIG.Re-EQIC22ROMIC291MDRAMIC21Q49,50MUTEQ48MUTEQ47MUTEQ45,46MUTE IC51(2/2)IC55(1/2)IC53IC53 L8L3,R1L6L1,R3L5L7(1/2)IC19IC20IC19(2/2)L,RIC29BUFFERDIR+3.3VIC37AVR4.7K PHONOQ31,32,20.0V/4A2A1L5IC18Q33,34,MONITORSUB MUTEV-MUTEYCCYYCCYCYV-MUTEYCCY+++SE-RLY+++POWER-RLYTou-COMToPOWERANALOGToSUB-uCOMDSPTUNERMPEG ROMDOLBY DIG.To FAN+STBCLKDATADATACLKCDOUTCCLKCSCDIN.FREQ1 .ERR.AC-3.FREQO.PDN.AUDIOSCK/SCLRESETSSMOS GPI02GPI00HREQMISO/SDAHREQMOSRESETGPI00HREQMISO/SDASCK/SCLSS75156DATA OUTCLKDATA IN .RESET.STB1365MISO/SDA SREQMDTMREQMCKSDTRESETKRF-V7771D(E,T)(X25)(X11)(X11)(X08)(X25)(X25)(X07)(X25)(X25)(X07)KRF-V7771DE(E2)(X08-)(X08)(SIGNAL STAGE) (u-COM STAGE)KRF-V7771D/V7771DE6BLOCK DIAGRAM