Vertex_EVX-5300_5400_维修维护电器原理图手册

Vertex StandardUHF Digital/AnalogVertex Standard LMR,Inc.Mobile Transceiver2014 Vertex Standard LMR,Inc.EVX-5300/-5400EC114U90EService Manual象0L760HEP884P1P2 P3 P4EVX-5300EVX-5400IntroductionThis manual provides technical information necessary for servicing the EVX-5300/-5400 UHF Digital/Analog Mobile Trans-ceiver.Servicing this equipment requires expertise in handling surface-mount chip components.Attempts by non-qualified persons toservice this equipment may result in permanent damage not covered by the warranty,and may be illegal in some countries.Two PCB layout diagrams are provided for each double-sided circuit board in the transceiver.Each side of is referred to by thetype of the majority of components installed on that side("leaded"or"chip-only").In most cases one side has only chip com-ponents,and the other has either a mixture of both chip and leaded components(trimmers,coils,electrolytic capacitors,ICs,etc.)or leaded components only.As described in the pages to follow,the advanced microprocessor design of the EVX-5300/-5400 allows a complete alignmentof this transceiver to be performed without opening the case of the radio,all adjustments can be performed from the personalcomputer,using with the Vertex Standard FIF-12 USB Programming Interface and CEl42 Software.While we believe the technical information in this manual to be correct,Vertex Standard assumes no liability for damage thatmay occur as a result of typographical or other errors that may be present.Your cooperation in pointing out any inconsistenciesin the technical information would be appreciated.Important NoteThis transceiver is 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 apparatusThe solder stated above utilizes the alloy composition required for compliance with the lead-free specification,and anysolder with the above alloy composition may be used.ContentsSpecificationsAlignment.……12USA/EXP Models..........2Circuit DiagramEUModel.3MAIN Unit (FR026490A:TYPE "G6")......23DSUB 15-pin Accessory Connector.............4MAIN Unit (FR024860B:TYPE "G7")......25Exploded View Miscellaneous Parts .......5MAIN-2 Unit(FR026490A:TYPE "G7)...27Parts List.FRONT-A Unit(FR024850C:EVX-5300)..29Block Diagram..8FRONT-B Unit (FR025010C:EVX-5400)..30Circuit Description...1