FTM-400DE_DR_serv维修手册含电器原理图

YAESUThe radio144/430 MHz 50 W Dual-Band TransceiverYAESU MUSEN CO.,LTD.u Parkside BuildingFTM-400DR/DE2-5-8 Higasi-Shinagawa.Shinagawa-ku,Tokyo 140-0002 JapanYAESU USA6125 Phyllis Drive,Cypress,CA 90630,U.S.A.TECHNICAL SUPPLEMENTYAESU UKUnit 12,Sun Valley Business Park,Winnall CloseWinchester,Hampshire,SO23 0LB,U.K.02014 YAESU MUSEN CO.,LTD.EH034M90BIntroductionThis manual provides the technical information necessary forContentsservicing the FTM-400DR/DE 144/430 MHz 50 W Dual BandSpecificationsTransceiver.Exploded View Miscellaneous PartsServicing this equipment requires expertise in handing surface-Block Diagrammount chip components.Attempts by non-qualified personsAlignmentto service this equipment may result in permanent damage notcovered by the warranty,and may be illegal in some countries.Board Unit(Schematics,Layouts Parts)Two PCB layout diagrams provided for each double-sidedMAIN Unitboard in this transceiver.Each side of the board is referred toPANEL Unitby the type of the majority of components installed on that sideDSP Unit("Side A"or "Side B").In most cases one side has only chipcomponents,and the other has either a mixture of both chip andleaded components (trimmers,coils,electrolytic capacitors,ICs,etc.),or leaded components only.While 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.Important Note1)This transceiver was assembled using Pb(lead)free solder,based on the RoHS specificationOnly lead-free solder(Alloy Composition:Sn-3.0Ag-0.5Cu)should be used for repairs performed on this apparatus.The solder stat-ed above utilizes the alloy composition required for compliance with the lead-free specification,and any solder with the above alloycomposition may be used2)Risk of explosion if battery is replaced by an incorrect type.Dispose of used batteries according to the instructions.