KENWOOD - Service Manuals
9 manuals available for download

Kenwood M2A Power Amplifier Schematic Diagram
Complete schematic diagram and parts list for the Kenwood M2A power amplifier. Includes main power circuit, signal processing stages with transistors, protective circuitry, output coupling networks, and component identification. Multi-page technical documentation showing detailed circuit topology.

Kenwood MARK-V TS-870S HF Transceiver Service Manual
Comprehensive service manual for the Kenwood MARK-V TS-870S HF transceiver. This detailed technical reference covers all aspects of maintenance, alignment, and repair of this high-performance amateur radio transceiver. Includes full circuit diagrams, block diagrams, alignment procedures, parts lists, and troubleshooting guides. Essential reference for technicians servicing this flagship HF station.

Kenwood SM-230 Station Monitor Service Manual
Service manual for the Kenwood SM-230 station monitor. Contains circuit description, parts list with semiconductor details, exploded views, packing information, adjustment procedures, and PC board views for panel unit, filter unit, vertical amplifier unit, and horizontal amplifier unit. Includes schematic diagrams and block diagrams.

Kenwood TH-21A/AT/E 2m FM Hand-Held Transceiver Service Manual
Service manual for Kenwood TH-21A/AT/E 2m FM hand-held transceivers covering models BT-2, DC-21, EB-2, PB-21, SC-8/8T, SMC-30, TU-6. Contains circuit descriptions including RX section with double super-heterodyne receiver, TX section with VCO and tone circuits, PLL circuit, control circuit, squelch-mute circuit, and power select circuit. Includes schematic diagrams, block diagrams, parts list with component specifications, packing information, charger specifications and assembly details.

Kenwood TS-2000X Service Manual
Service manual for the Kenwood TS-2000X all-mode transceiver. Contains circuit descriptions, component descriptions, semiconductor data, parts list, exploded views, packing information, adjustment procedures, terminal functions, wiring diagrams, PC board views and circuit diagrams for multiple units including filter unit, final unit, display unit, control unit, TX-RX units, block diagrams, level diagrams, and specifications.

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 technical documentation covers circuit descriptions, frequency configurations, PLL circuit operations, receiver and transmitter circuit configurations, and detailed adjustment procedures. The manual includes extensive coverage of the digital control unit, AT unit, optional filters, and various RF units. Technical sections address standby control timing, extended functions, semiconductor data, component descriptions, and complete parts lists. Detailed explanations of signal system frequency configurations with triple conversion in receive mode and double conversion in CW/FM transmit modes are provided. The document features block diagrams, schematic diagrams, exploded views, and packing information. It covers models for multiple destinations including North America, Australia, Canada, Europe, and Belgium, with both 100W and 50MHz variants specified.

Kenwood TS-850S HF Transceiver Service Manual
Comprehensive service manual for the Kenwood TS-850S HF transceiver, a professional-grade radio transmission and reception unit. This 219-page technical documentation provides detailed circuit descriptions, component specifications, and maintenance procedures. The manual covers the frequency configuration system utilizing triple conversion in receive mode and dual conversion for SSB, AM, and FSK transmit modes. It includes extensive information on the digital signal processor (DSP), phase-locked loop (PLL) circuits, CAR unit with DDS integrated circuits, and receiver circuit architecture. The documentation features circuit diagrams, block diagrams, exploded views, parts lists, and pinouts for all major components. Technicians and service personnel will find detailed explanations of the RF unit, transmitter circuits, filter units, AT unit, standby control timing, digital control systems, and semiconductor data. Terminal functions are thoroughly documented with comprehensive schematic diagrams and PC board views for efficient troubleshooting and repair.

Kenwood TS-950SDX HF Transceiver Service Manual
Comprehensive service manual for the Kenwood TS-950SDX HF transceiver, a professional-grade radio communication device. This 349-page technical documentation provides detailed circuit descriptions, component information, and maintenance procedures. The manual covers the transceiver's quadruple conversion receiver and dual conversion transmitter architecture, frequency configuration across SSB, CW, AM, and FSK modes, and advanced features including DSP signal processing and digital control systems. Includes extensive PLL circuit documentation, frequency oscillator configurations, DDS clock generation, and RF/IF unit specifications. Features complete schematic diagrams, PC board views, terminal function descriptions, and detailed parts lists. The document provides technical information on the VCO modules, ceramic filters, mixer configurations, and the integrated microprocessor-controlled tuning system. Essential reference for service technicians, radio engineers, and equipment maintenance personnel working with this professional transceiver platform.

TR-751A/E 144MHz All Mode Transceiver Service Manual
Service manual for the Kenwood TR-751A/E 144MHz all mode transceiver. Contains circuit descriptions, frequency configuration, receiver system details with AGC and SSB squelch circuits, ALC and SWR protection circuits, PLL synthesizer information, digital control unit description, MPU interface circuits, reset backup circuit, key and switch input circuits, mode voltage switching and standby circuits. Includes schematic diagrams, block diagrams, element functions, parts list, exploded views, level diagrams, and adjustment procedures. Covers component specifications for crystal filters, MCF units, and various circuit boards.