Overview
The KENWOOD TS-940S is a high-performance HF transceiver designed for amateur radio enthusiasts and professionals. This service manual offers in-depth guidance for maintenance, repair, and understanding the complex circuitry of the device.
Key Components and Features
The manual details various units and their functions, including:
- Circuit Descriptions
- Semiconductor Data
- Parts Lists
- Disassembly and Packing Instructions
- Adjustment Procedures
- Level Diagrams
- Terminal Functions
- PC Board Views and Circuit Diagrams for multiple units (RF, Final, LPF, IF, Control, FLL, CAR, DIGITAL, SW, AVR, DC-DC, ENCODER)
- Schematic Diagrams
- Block Diagrams
- Specifications for Transmitter and Receiver functions
Technical Specifications
Key specifications covered include frequency ranges, modes of operation (SSB, CW, FSK, AM, FM), power input, frequency stability, sensitivity, selectivity, and audio output. The manual also details the PLL (Phase Locked Loop) system, local oscillators, and frequency generation for various modes.
Accessories
Information is provided for optional accessories such as the AT-940 Antenna Tuner, SO-1 Standard Oscillator Unit, and VS-1 Voice Synthesizer Unit, detailing their integration and function with the main transceiver.
