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YAESUYAESU MUSEN CO.,LTD.The radioTennozu Parkside Building2-5-8 Higashi-Shinagawa,Shinagawa-ku,Tokyo 140-0002 Japan144/430 MHz Dual-Band Digital TransceiverYAESU USA6125 Phyllis Drive,Cypress,CA 90630,U.S.AYAESU UKFT1DR/DEUnit 12,Sun Valley Business Park,Winnall CloseWinchester,Hampshire,S023 0LB,U.K.YAESU HKTECHNICAL SUPPLEMENTUnit 2002,20/F,9 Chong Yip Street,Kwun Tong.Kowloon,Hong Kong2013 YAESU MUSEN CO.,LTD.EH044M90AIntroductionContentsThis manual provides the technical information necessary for ser-vicing the FT1DR/DE 144/430 MHz Dual Band Digital Trans-Specificationsceiver.Exploded View Miscellaneous PartsServicing this equipment requires expertise in handing surface-Block Diagrammount chip components.Attempts by non-qualified personsConnection Diagramto service this equipment may result in permanent damage notcovered by the warranty,and may be illegal in some countries.AlignmentTwo PCB layout diagrams provided for each double-sidedBoard Unit(Schematics,Layouts Parts)board in this transceiver.Each side of the board is referred toRF Unitby the type of the majority of components installed on that sideCNTL Unit("Side A"or "Side B").In most cases one side has only chipDSP Unitcomponents,and the other has either a mixture of both chip andCONNECT Unitleaded components (trimmers,coils,electrolytic capacitors,ICs,etc.),or leaded components only.MICRO-SD UnitWhile we believe the information in this manual to be correct,YAESU assumes no liability for damage that may occur as aresult of typographical or other errors that may be present.Yourcooperation in pointing out any inconsistencies in the technicalinformation would be appreciated.CautionRisk of explosion if battery is replaced by an incorrecttype.Dispose of used batteries according to the instruc-tions.Important Note1)This 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 appara-tus.The solder stated above utilizes the alloy compositionrequired for compliance with the lead-free specification,and any solder with the above alloy composition may beused.2)Risk ofexplosion if battery is replaced by an incorrect type.Dispose of used batteries according to the instructions.
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