Sony AVD-S50 Service Manual

Also see for AVD-S50: Operating instructions Service manual

AVD-S50/S50ES72725-32. IC BLOCK DIAGRAMSIC001 CXD1881AR (RF Board) IC401 CXD3068Q (DVD Board)IC812 SN74LV245APWR (DVD Board)IC813 SN74LV245APWR (DVD Board)IC814 TC7WH157FK (DVD Board)SELECT116ST117A 123ABY5YBGND 4VCC8YEN GY1 2 3 4 5 6 7 8 9 1020 19 18 17 16 15 14 13 12 11A1DIRA2A3A4A5A6A7A8GNDENABLEGV CCB1B2B3B4B5B6B7B8DOUTLRCKPCMDBCKDVDD2ASYEMD2EMPHXTSLDVSS2XTAIXTAOSQSOSQCKSCSYSBSOEXCKSOUTSOCKXOLTSETEVCTES1TEST1DVSS1FRDRFFDRTRDRTFDRSRDRSFDRDVDD1FSTOSSTPMDPLOCKPWMIFOKDFCTDIGITALCLVPROCESSOROSCDIGITALOUTEFMDEMODULATOR32KRAMERRORCORRECTORD/A DIGITALINTERFACEMIRR, DFCT,FOKDETECTORCPUINTERFACESUBCODEPROCESSORSERVOAUTOSEQUENCERSERVO INTERFACEDVDD0XRSTMUTEDATAXLATCLOKSENSSCLKATSKWFCKXUGFXPCKGFSC2POSCORC4MWDCKDVSS0COUTMIRRAVDD0IGENAVSS0ADIORFDCCETEAVSS1RFACASYIASYOBIASAVDD1PCOFILIFILOCLTVV16MVCTLVPCO59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 411 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2021222324252627282930313233343536373839408079787776757473727170696867666564636261OPERATIONALAMPLIFIER &ANALOG SWITCHA/DCONVERTERFOCUSPWMGENERATORTRACKINGPWMGENERATORSLEDPWMGENERATORFOCUSSERVODSPTRACKINGSERVODSPSLEDSERVODSPASYMMETRYCORRECTORDIGITALPLLCLOCKGENERATOR60MUX ATT INPUTBIAS AGCGCAPROGRAMMABLEEQUALIZERFILTERDIFFERENTIATOR64 63 62 61 60 59 58 57 515612FULL WAVERECTIFERAGC CHARGEPUMP+–+–++++++++++––+–+–INPUTSEL ATT2422INPUTIMPEDANCESELOFFSETCANSELMNTRCONTROLSERIALPORTREGISTER4FROMS-PORT4FROMS-PORTINPUTIMPEDANCESEL3FROMS-PORTCLAMP &ENVELOPELEVELDACSIGDETAGCOBUFFER55 54 53 52 50 49OUTPUTINHIBITFROM S-PORT34567891011121314151617GCACD/DVD4FROMS-PORT3FROMS-PORTMUX3FROMS-PORTGCA3FROMS-PORT3FROMS-PORTEQVCCOMPARATORPHASEDETECTORPHASEDETECTORA+DB+D++A+CB+CGCAW/LPFSUMAMP18 19 20 21 22 24 2523 26 27 28 29 31 3230GCAGCAVCI FOR SERVO INPUTVC = VPB/2DUAL APCLD H/LFROM S-PORTAPC SELDVD/CDTOPHOLDGCATOPHOLDGCA4148474645GCAOFFSETCANSEL5FROMS-PORTGCA 40GCAOFFSETCANSEL6FROMS-PORT3FROMS-PORTGCAGCACEFDBCP/CNLOWIMPEDANCECD/DVDSUBGCAMUX GCALPFGCALPF39383736OFFSETCANSELPEAK/BOTTOMHOLDBOTTOMENVELOPEINPUTBUFFER5FROMS-PORTGCALPFV25/2TERST353433FOR SERVOOUTPUTPHTOPHOLDGCASELLINKENMUXHOLDEN+–+–COMPA-RATORINTERNALFDGHGHYSTERESISTER& OFFSETFROM S-PORTMIRRCOMPARATORINPUT GAINFROM S-PORTSELDACSINK CURRENTFROM S-PORT2AGCOFAST ATTACKAGCHOLDBCADET2FROMS-PORTPH22INPUTIMPEDANCEFROM S-PORT444342V33 FOROUTPUTBUFFERPIFETECEV25V125V25/3LPF ATTPOL SELBUFFERCONTROLSIGNALSTO EACHBLOCK3CE ATTCEPOLDCBACD FCD EVPBVCDVDLDCDLDCDPDDVDPDLDONVNBMIRRMPMBMINMEVOMLPFCESDENSDATASCLKV33FETEPIV25V125TPHDFTLINKLCPLCNMNTRDVDRFPDVDRFNA2B2C2D2CPCNDCBACD DCD CCD BCD ARFDCRFSINATOPATONAINAIPVPARFACVNABYPDINDIPFNPFNNMEVRX