About This Manual
This service manual provides detailed technical information for the Kenwood TS-440S HF transceiver. It covers essential specifications, circuit descriptions, component lists, and operational adjustments necessary for servicing the unit.
Key Features and Components
The TS-440S is a triple conversion superheterodyne transceiver featuring a microprocessor-controlled PLL for high accuracy and stable frequency control. It supports multiple modes including CW, SSB, AM, FSK, and FM. The manual also details optional accessories such as the PS-50 and PS-430 power supplies, SP-430 external speaker, MB-430 mounting bracket, VS-1 voice synthesizer, AT-440 antenna tuner, and YK-88 series filters.
Explore detailed sections on:
- Specifications for transmitter and receiver functions.
- Circuit descriptions for various units including RF, IF, PLL, and AT.
- Component lists and parts breakdowns.
- Adjustment procedures and level diagrams.
- Block diagrams and schematic diagrams for troubleshooting.
Technical Specifications Overview
The TS-440S operates across a wide frequency range from 100 kHz to 30 MHz, supporting modes like A1 (CW), A3J (SSB), A3 (AM), F1 (FSK), and F3 (FM). It requires a 12.0 to 16.0 V DC power supply and consumes approximately 20A during transmission. The manual includes detailed sensitivity, selectivity, and frequency stability data.
Further Information
For detailed technical specifications and troubleshooting, please refer to the full service manual. Information on related products can be found on the Kenwood website.
