Vertex_VXR-7000_UHF_维修维护电器原理图手册_2006

Vertex StandardVERTEX STANDARD CO..LTD.4-8-8 Nakameguo,Meguro-Ku,Tokyo 153-8644,JapanDesktop RepeaterVERTEX STANDARDUS Headquarters10900 Walker Street,Cypress,CA 90630,U.SA.VXR-7000 (UHF)YAESU EUROPE B.V.P.O.Box 75525,1118 ZN Schiphol,The NetherlandsYAESU UK LTD.Service ManualUnit 12,Sun Valley Business Park,Winnall CloseWinchester,Hampshire,SO23 0LB,U.K.VERTEX STANDARD HK LTD.2006 VERTEX STANDARD CO.,LTD.Unit 5,20/F.,Seaview Centre,139-141 Hoi Bun Road(E136890B)Kwun'Tong.Kowloon,Hong KongVertex StandardPOWERDESKTOP REPEATER006VXR-7000IntroductionThis manual provides technical information necessary for servicing the VXR-7000 FM Land Mobile Repeater.Servicing this equipment requires expertise in handling surface-mount chip components.Attempts by non-qualifiedpersons to service this equipment may result in permanent damage not covered by the warranty,and may be illegal insome countries.Two PCB layout diagrams are provided for each double-sided circuit board in the repeater.Each side of is referred toby the type of the majority of components installed on that side ("leaded"or"chip-only").In most cases one side has onlychip components,and the other has either a mixture of both chip and leaded components(trimmers,coils,electrolyticcapacitors,ICs,etc.),or leaded components only.While we believe the technical information in this manual to be correct,VERTEX STANDARD assumes no liabilityfor damage that may occur as a result of typographical or other errors that may be present.Your cooperation in pointingout any inconsistencies in the technical information would be appreciated.ContentsOperating Manual Reprint.........................2TXUnit Lot1-59).49TX-2Unit(L0t.60-）.57CE27 Programming Software Instruction......m10RX Unit(（L0t.1-59)65Specifications.........…16RX-2Unit(L0t.60-）.75Exploded View Miscellaneous Parts....17CNTL Unit...........85Block Diagram….21Display Unit103Key Unit.107Interconnection Diagram.24Filter Unit (50W Type)....113Circuit Description25Filter-2 Unit (25W Type)119SWUnit (25W Type).125Board Unit (Schematics,Layouts Parts)SQL Unit...PA Unit(L0t.1-17,18,19-61)..33128PS Unit.....129PA-2 Unit (Lot.62-).............41