Introduction to the Kenwood TS-830S/M
This document serves as a comprehensive service manual for the Kenwood TS-830S and TS-830M transceivers. It provides detailed technical information, specifications, and internal component layouts essential for servicing and understanding these radio units. The manual covers various aspects, including circuit descriptions, AC voltage conversion, internal views, and PC board layouts for different units such as the RF, IF, VFO, and PLL sections.
Key Features and Specifications
The Kenwood TS-830S/M series transceivers are designed for amateur radio communication, offering a wide frequency range and multiple operating modes. Key specifications detailed within include:
- Frequency Range: Covers multiple bands from 1.8 MHz to 29.7 MHz.
- Modes: SSB/CW for TS-830S, SSB/AM/CW for TS-830M.
- Power Requirements: Operates on 120V/220V/240V AC, 50/60 Hz.
- Transmitter Output: Up to 220W PEP for SSB, 180W DC for CW.
- Receiver Sensitivity: High sensitivity for SSB/CW and AM modes.
- Circuitry: Features dual conversion, PLL synthesis, VBT (Variable Bandwidth Tuning), IF SHIFT, and optional filters for enhanced selectivity.
Technical Details
The manual delves into the intricacies of the transceiver's design, explaining the function of various circuits:
- PLL Circuit: Utilizes a programmable divider for frequency synthesis, ensuring stable and accurate operation across bands.
- Receiver Circuit: Employs a dual-conversion system with intermediate frequencies of 8.83 MHz and 455 kHz, incorporating filters and amplifiers for optimal signal reception.
- Transmitter Circuit: Generates SSB signals at 455 kHz, converts them to 8.83 MHz, and amplifies them through driver and final power stages.
- VBT and IF SHIFT: These features allow for adjustable bandwidth and frequency tuning, improving signal clarity in crowded bands.
For detailed component identification and troubleshooting, the manual includes extensive PC board views and parts lists.
