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Kenwood TS-570D Service Manual

Kenwood TS-570D
72 pages
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Table of Contents

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Kenwood TS-570D Specifications

General IconGeneral
Receiver TypeSuperheterodyne
Antenna Impedance50 ohms
Image RejectionMore than 70 dB
Power Supply13.8 V DC ±15%
Current Drain RX1.5 A
Frequency Range RX0.5-30 MHz
ModesSSB, CW, AM, FM
RF Power Output100 W (SSB/CW/FM), 25 W (AM)
IF Rejection>70 dB
Current Drain TX20 A

Summary

Circuit Description

Frequency Configuration

Details the TS-570D's frequency configuration using double/triple conversion and PLL.

PLL Circuit

Explains the Phase Locked Loop circuit, DDS, and LO generation for frequency control.

Receiver Circuit Configuration

Describes the double conversion receiver architecture and signal path from antenna to output.

Transmitter Circuit Configuration

Details the signal flow from microphone input to output for SSB, AM, FM, and CW modes.

Digital Unit

Explains the DSP, EPROM, clock logic, and CODEC functions in the digital unit.

Noise/Interference Processing

Covers digital signal processing for SPAC, line enhancer, and beat cancel functions.

Description of Components

Final Unit Components

Lists key components like amplifiers, switching elements, regulators, and diodes in the final unit.

Control Unit Components

Details components like CPU, EEPROM, multiplexers, amplifiers, and CODEC in the control unit.

TX-RX Unit Components

Lists transistors, ICs, and diodes used in the TX-RX unit for various functions.

Semiconductor Data

Extended I/O: CXD1095Q (Control Unit IC5) Terminal Function

Details the pin functions and connections for the CXD1095Q IC.

A/D, D/A Converter: AK4506-VS (Control Unit IC504) Terminal Connection

Provides the terminal connection diagram and functions for the AK4506-VS CODEC IC.

DSP: ADSP2181KS-115 (Control Unit IC507) Terminal Connection

Details the pin connections for the ADSP2181KS-115 DSP IC.

HIC: KCD10 (TX-RX Unit IC7) Circuit Diagram

Shows the circuit diagram and terminal connections for the KCD10 HIC.

Parts List

Final Unit Parts List

Lists all components and their part numbers for the final unit of the transceiver.

Control Unit Parts List

Lists components and part numbers for the control unit.

TX-RX Unit Parts List

Lists components and part numbers for the TX-RX unit.

Adjustment

Preparation

Outlines the initial settings for knobs and switches before adjustments.

Service Adjustment Mode Menu

Lists the menu items for service adjustments, including AGC, ALC, S-meter, and protection settings.

PLL Section Adjustments

Details the adjustment procedures for reference oscillation, VCO lock voltages, and MCF.

Transmitter Section Adjustments

Covers adjustments for TX AMP, NULL, power frequency, TGC, and power settings.

Specifications

General Specifications

Lists general operating parameters like mode, channels, impedance, voltage, and temperature.

Transmitter Specifications

Details output power, modulation, spurious emissions, and frequency ranges for transmission.

Receiver Specifications

Provides sensitivity, selectivity, IF frequencies, and audio output specifications for the receiver.

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