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1、VERTEXSTANDARDCO.,LTD.4-8-8Nakameguro,Meguro-Ku,Tokyo153-8644,JapanVERTEXSTANDARDUSHeadquartersDualBandFMTransceiver10900WalkerStreet,Cypress,CA90630,U.S.A.InternationalDivision8350N.W.52ndTerrace,Suite201,Miami,FL33166,U.S.A.YAESUEUROPEB.V.FT-8800RP.O.Box75525,1118ZNSchiphol,TheNetherlandsYAESUUKL
2、TD.Unit12,SunValleyBusinessPark,WinnallCloseTechnicalSupplementWinchester,Hampshire,SO230LB,U.K.VERTEXSTANDARDHKLTD.Unit5,20/F.,SeaviewCentre,139-141HoiBunRoad,©2003VERTEXSTANDARDCO.,LTD.(EH018M90A)KwunTong,Kowloon,HongKong1425PWRSQLSQLVOLVOL36KEY2LOWV/MHMSCNLOWV/MHMSCNIntroductionThismanualprovide
3、stechnicalinformationnecessaryforservicingtheFT-8800RTransceiver.Servicingthisequipmentrequiresexpertiseinhandlingsurface-mountchipcomponents.Attemptsbynon-qualifiedpersonstoservicethisequipmentmayresultinpermanentdamagenotcoveredbythewarranty,andmaybeillegalinsomecountries.TwoPCBlayoutdiagramsarep
4、rovidedforeachdouble-sidedcircuitboardinthetransceiver.Eachsideofthrboardisreferredtobythetypeofthemajorityofcomponentsinstalledonthatside(“leaded”or“chip-only”).Inmostcasesonesidehasonlychipcomponents,andtheotherhaseitheramixtureofbothchipandleadedcomponents(trimmers,coils,electrolyticcapacitors,I
5、Cs,etc.),orleadedcomponentsonly.Whilewebelievethetechnicalinformationinthismanualtobecorrect,VertexStandardassumesnoliabilityfordam-agethatmayoccurasaresultoftypographicalorothererrorsthatmaybepresent.Yourcooperationinpointingoutanyinconsistenciesinthetechnicalinformationwouldbeappreciated.Contents
6、Specifications.....................................................2BoardUnit(Schematics,Layouts&Parts)ExplodedView&MiscellaneousParts.........3MainUnit......................................................................17BlockDiagram....................................................5PanelUnit.
7、....................................................................45Panel-SubUnit.............................................................51CircuitDescription..........................................
