Yaesu FT-450 Technical Supplement

Also see for FT-450: Brochure & specs Reference Manual Operation manual User manual

IntroductionThis manual provides technical information necessaryfor servicing the FT-450 HF/50 MHz Transceiver.Servicing this equipment requires expertise in handlingsurface-mount chip components. Attempts by non-qual-ified persons to service this equipment may result in per-manent damage not covered by the warranty, and maybe illegal in some countries.Two PCB layout diagrams are provided for each double-sided circuit board in the Transceiver. Each side of is re-ferred to by the type of the majority of components in-stalled on that side (“leaded” or “chip-only”). In mostcases one side has only chip components, and the otherhas either a mixture of both chip and leaded components(trimmers, coils, electrolytic capacitors, ICs, etc.), or lead-ed components only.While we believe the technical information in this manu-al to be correct, VERTEX STANDARD assumes no liabili-ty for damage that may occur as a result of typographi-cal or other errors that may be present. Your cooperationin pointing out any inconsistencies in the technical infor-mation would be appreciated.©2007 VERTEX STANDARD CO., LTD.Technical SupplementHF/50 MHz TRANSCEIVERFT-450ContentsSpecificationsExploded View & Miscellaneous PartsBlock DiagramConnection DiagramAlignmentBoard Unit (Schematics, Layouts & Parts)RF-IF UnitPANEL UnitCNTL UnitPA UnitTUNER Unit ATU-450 (Option)VERTEX STANDARD CO., LTD.4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, JapanVERTEX STANDARDUS Headquarters10900 Walker Street, Cypress, CA 90630, U.S.A.YAESU EUROPE B.V.P.O. Box 75525, 1118 ZN Schiphol, The NetherlandsYAESU UK LTD.Unit 12, Sun Valley Business Park, Winnall CloseWinchester, Hampshire, SO23 0LB, U.K.VERTEX STANDARD HK LTD.Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,Kwun Tong, Kowloon, Hong KongVERTEX STANDARD (AUSTRALIA) PTY., LTD.Normanby Business Park, Unit 14/45 Normanby RoadNotting Hill 3168, Victoria, AustraliaEH024H90A