先锋高保真DVD机dv-525电路图纸维修手册

ORDERNO.PIONEERCORPORATION4-1,Meguro1-Chome,Meguro-ku,Tokyo153-8654,JapanPIONEERELECTRONICSSERVICE,INC.P.O.Box1760,LongBeach,CA90801-1760,U.S.A.PIONEERELECTRONIC(EUROPE)N.V.Haven1087,Keetberglaan1,9120Melsele,BelgiumPIONEERELECTRONICSASIACENTREPTE.LTD.253AlexandraRoad,#04-01,Singapore159936PIONEERCORPORATION1999cDV-525RRV21581.SAFETYINFORMATION.......................................22.EXPLODEDVIEWSANDPARTSLIST.................43.BLOCKDIAGRAMANDSCHEMATICDIAGRAM..124.PCBCONNECTIONDIAGRAM...........................355.PCBPARTSLIST................................................456.ADJUSTMENT.....................................................52CONTENTS7.GENERALINFORMATION..................................547.1DIAGNOSIS...................................................547.1.1TESTMODESCREENDISPLAY.............547.1.2TROUBLESHOOTING............................567.1.3ERRORCODE.........................................577.1.4DISASSEMBLY........................................617.2PARTS...........................................................627.2.1IC.............................................................627.2.2DISPLAY..................................................738.PANELFACILITIESANDSPECIFICATIONS.......74T–IZEJULY1999PrintedinJapanDVDPLAYERDVDPLAYERSTANDBY/ONTypeModelPowerRequirementRegionNo.RemarksDV-525KUAC120V1KCAC120V1WVAC220-240V2WYAC220-240V2WY/SPAC220-240V2THISMANUALISAPPLICABLETOTHEFOLLOWINGMODEL(S)ANDTYPE(S).2DV-5251.SAFETYINFORMATIONThisservicemanualisintendedforqualifiedservicetechnicians;itisnotmeantforthecasualdo-it-yourselfer.Qualifiedtechnicianshavethenecessarytestequipmentandtools,andhavebeentrainedtoproperlyandsafelyrepaircomplexproductssuchasthosecoveredbythismanual.Improperlyperformedrepairscanadverselyaffectthesafetyandreliabilityoftheproductandmayvoidthewarranty.Ifyouarenotqualifiedtoperformtherepairofthisproductproperlyandsafely,youshouldnotrisktryingtodosoandrefertherepairtoaqualifiedservicetechnician.WARNINGThisproductcontainsleadinsolderandcertainelectricalpartscontainchemicalswhichareknowntothestateofCaliforniatocausecancer,birthdefectsorotherreproductiveharm.Health&SafetyCodeSection25249.6–Proposition65NOTICE(FORCANADIANMODELONLY)Fusesymbols(fastoperatingfuse)and/or(slowoperatingfuse)onPCBindicatethatreplacementpartsmustbeofidenticaldesignation.REMARQUE(POURMODÈLECANADIENSEULEMENT)Lessymbolesdefusible(fusibledetyperapide)et/ou(fusibledetypelent)surCCIindiquentquelespiècesderemplacementdoiventavoirlamêmedésignation.ANYMEASUREMENTSNOTWITHINTHELIMITSOUTLINEDABOVEAREINDICATIVEOFAPOTENTIALSHOCKHAZARDANDMUSTBECORRECTEDBEFORERETURNINGTHEAPPLIANCETOTHECUSTOMER.2.PRODUCTSAFETYNOTICEManyelectricalandmechanicalpartsintheappliancehavespecialsafetyrelatedcharacteristics.Theseareoftennotevidentfromvisualinspectionnortheprotectionaffordedbythemnecessarilycanbeobtainedbyusingreplacementcomponentsratedforvoltage,wattage,etc.ReplacementpartswhichhavethesespecialsafetycharacteristicsareidentifiedinthisServiceManual.ElectricalcomponentshavingsuchfeaturesareidentifiedbymarkingwithaontheschematicsandonthepartslistinthisServiceManual.TheuseofasubstitutereplacementcomponentwhichdoesnothavethesamesafetycharacteristicsasthePIONEERrecommendedreplacementone,showninthepartslistinthisServiceManual,maycreateshock,fire,orotherhazards.ProductSafetyiscontinuouslyunderreviewandnewinstructionsareissuedfromtimetotime.Forthelatestinformation,alwaysconsultthecurrentPIONEERServiceManual.Asubscriptionto,oradditionalcopiesof,PIONEERServiceManualmaybeobtainedatanominalchargefromPIONEER.1.SAFETYPRECAUTIONSThefollowingcheckshouldbeperformedforthecontinuedprotectionofthecustomerandservicetechnician.LEAKAGECURRENTCHECKMeasureleakagecurrenttoaknownearthground(waterpipe,conduit,etc.)byconnectingaleakagecurrenttestersuchasSimpsonModel229-2orequivalentbetweentheearthgroundandallexposedmetalpartsoftheappliance(input/outputterminals,screwheads,metaloverlays,controlshaft,etc.).PlugtheAClinecordoftheappliancedirectlyintoa120VAC60HzoutletandturntheACpowerswitchon.Anycurrentmeasuredmustnotexceed0.5mA.(FORUSAMODELONLY)LeakagecurrenttesterReadingshouldnotbeabove0.5mADeviceundertestTestallexposedmetalsurfacesAlsotestwithplugreversed(UsingACadapterplugasrequired)EarthgroundACLeakageTest3DV-525IMPORTANTTHISPIONEERAPPARATUSCONTAINSLASEROFCLASS1.SERVICINGOPERATIONOFTHEAPPARATUSSHOULDBEDONEBYASPECIALLYINSTRUCTEDPERSON.LASERDIODECHARACTERISTICSFORDVD:MAXIMUMOUTPUTPOWER:5mWWAVELENGTH:655nmFORCD:MAXIMUMOUTPUTPOWER:5mWWAVELENGTH:785nmAdditionalLaserCaution1.Insidedetectionswitch(S201ontheSMEBassy)andloading-statusdetectionswitch(S301ontheLOSBassy)aredetectedbythemicroprocessor(IC11intheDVDMassy).•Topermitthelaserdiodetooscillate,itisrequiredtosettheinsidedetectionswitchfortheinsideposition(S201:ON)andtosettheloading-statusdetectionswitchfortheclampposition(thecenterterminalofS301isshortedto+5V).The650nmlaserdiodeforDVDoscillationwillcontinueifpin19ofIC1isshortedto+5V(faultcondition)intheDVDMassy.The780nmlaserdiodeforCDoscillatesifpin20ofIC1i