FT-817_817ND_FT-818ND_TS_USA_EXP_EU_E137790K维修电气原理图手册

YAESUThe radioTechnical SupplementHF/VHF/UHF ALL MODE TRANSCEIVERFT-817/FT-817NDFT-818NDE137790KC2019 YAESU MUSEN CO.,LTD.IntroductionThis manual provides technical information necessary for ser-Contentsvicing the Yaesu FT-817/FT-817ND,FT-818ND HF/VHF/UHFALL MODE TRANSCEIVERSpecificationsServicing this equipment requires expertise in handing surfac-Exploded View Miscellaneous Partsemount chip components.Attempts by non-qualified personsBlock Diagramto service this equipment may result in permanent damage notConnection Diagramcovered by the warranty,and may be illegal in some countries.While we believe the information in this manual to be correct,AlignmentYAESU assumes no liability for damage that may occur as aBoard Unit(Schematics,Layouts Parts)result of typographical or other errors that may be present.YourMAIN Unitcooperation in pointing out any inconsistencies in the technicalPLL Unitinformation would be appreciated.REF UnitPA UnitFINAL UnitPANEL UnitVR UnitTCXO-9 Unit(Option for FT-817/FT-817ND)Important NoteThis transceiver was assembled using Pb(lead)free solder,based on the RoHS specification.Only lead-free solder (Alloy Composition:Sn-3.0Ag-0.5Cu)should be used for repairs performed on this apparatus.The solder statedabove utilizes the alloy composition required for compliance with the lead-free specification,and any solder with the above alloy compo-sition may be usedCautionRisk of explosion if battery is replaced by an incorrect type.Dispose of used batteries according to the instructions.