DX-394-(Service-Manual维修手册含电器原理图)

Radio hack'Servicelamual20-22499224DX-394GENERAL COVERAGECOMMUNICATIONS RECEIVERCatalog Number:20-224/9224CONTENTSPageSpecifications..........2Block Diagram...·4Theory of Operation..........,,,.5General Operation Outline.....6Reception Check.............Memory Check................9Alignment and Adjustment.......10Troubleshootiong..-..,.···16Printed Circuit Boards..............18Wiring Diagram...................22Exploded View.............23Mechanical Parts List...............24Electrical Parts List.................25Semiconductor Lead ldentification..........56Microprocessor (IC201)Port Format...............61Schematic Diagram.................62O1995 interTAN Lt拉All Rlghts Reserved.