FTDX-3000_维修维护电器原理图手册

YAESUYAESU MUSEN CO.,LTDThe radioTennozu Parkside Building2-5-8 Higashi-Shinagawa,Shinagawa-ku,Tokyo 140-0002 JapanHF/50 MHZ TRANSCEIVERYAESU USA6125 Phyllis Drive,Cypress,CA 90630,U.S.A.YAESU UKFTDX3000Unit 12,Sun Valley Business Park,Winnall CloseWinchester,Hampshire,S023 0LB,U.K.YAESU HKTECHNICAL SUPPLEMENTUnit2002,20F,Chong Yip Street,Kwun Tong,Kowloon,Hong Kong2013 YAESU MUSEN CO.,LTD.EHO46H90AIntroductionContentsThis manual provides technical information necessarySpecificationsfor servicing the FTDx3000 HF/50 MHz Transceiver.Exploded View Miscellaneous PartsServicing this equipment requires expertise in handlingsurface-mount chip components.Attempts by non-Block Diagramqualified persons to service this equipment may resultConnection Diagramin permanent damage not covered by the warranty,andmay be illegal in some countries.AlignmentTwo PCB layout diagrams are provided for each double-Board Unit(Schematics,Layouts Parts)sided circuit board in the Transceiver.Each side of isMAIN Unitreferred to by the type of the majority of componentsinstalled on that side ("leaded"or "chip-only").InBPF Unitmost cases one side has only chip components,andSCP Unitthe other has either a mixture of both chip and leadedcomponents(trimmers,coils,electrolytic capacitors,ICs,CNTL Unitetc.),or leaded components only.LOCAL UnitWhile we believe the technical information in thisPA Unitmanual to be correct,YAESU MUSEN assumes noliability for damage that may occur as a result ofTUNER Unittypographical or other errors that may be present.YourDSP Unitcooperation in pointing out any inconsistencies in thetechnical information would be appreciated.FFT UnitDISPLAY-1 UnitDISPLAY-2 UnitSW-A UnitImportant NoteSW-B Unit1)This transceiver was assembled using Pb (lead)VR-A Unitfree solder,based on the RoHS specification.Only lead-free solder (Alloy Composition:Sn-JACK Unit3.0Ag-0.5Cu)should be used for repairs per-MIC Unitformed on this apparatus.The solder statedabove utilizes the alloy composition requiredfor compliance with the lead-free specification,and any solder with the above alloy composi-tion may be used.2)Risk of explosion if battery is replaced by anincorrect type.Dispose of used batteries ac-cording to the instructions.