Kenwood TS-450S/690S HF Transceiver Service Manual
Complete service manual for the Kenwood TS-450S and TS-690S all-mode HF transceivers. This comprehensive workshop manual provides the technical depth needed for professional repair and maintenance of these dual-frequency machines. Coverage includes detailed circuit descriptions, PLL operations, receiver and transmitter signal paths with triple conversion receive architecture and dual conversion CW/FM transmission modes. The manual walks through frequency configurations for multiple regional variants—North America, Australia, Canada, Europe, and Belgium—plus 50MHz and 100W output specifications. You'll find complete adjustment procedures, standby control timing sequences, and extended function programming details. The digital control unit, AT automatic tuner unit, optional filter modules, and RF unit configurations are fully documented with semiconductor data and component specifications. Block diagrams, schematic diagrams, and exploded assembly views support hands-on repair work. Includes comprehensive parts list for ordering replacement components. An essential reference for anyone servicing these classic HF transceivers.
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Document Details
- Format
- Pages
- 184
- Size
- 33.8 MB
- Category
- Radio & Communications