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Kenwood TS-790E Service Manual

Kenwood TS-790E
239 pages
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Table of Contents

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Kenwood TS-790E Specifications

General IconGeneral
BrandKenwood
ModelTS-790E
CategoryTransceiver
LanguageEnglish

Summary

CIRCUIT DESCRIPTION

Core Circuit Blocks and Configurations

Covers CAR circuit configuration, analog signaling, TXB/RXB, keying, and squelch circuits.

Unit Modules and Their Functions

Explains specific modules like speaker separation, AFC, MODE, S meter, ALC, and others.

Frequency Components and PLL Systems

Details transmit frequency components and PLL configurations for 144MHz, 430MHz, and 1.2GHz bands.

Digital Control, Interfaces, and Signals

Covers digital control, analog input, display, CPU, PLL data, I/O interfaces, and signal types.

DESCRIPTION OF COMPONENTS

Component Listings by Unit

Lists components for Switch, RF, Final, and IF units.

Semiconductor and IC Data

Provides data on ceramic filters, crystal filters, ICs, and power modules.

Power Module Specifications

Lists electrical characteristics and maximum ratings for power modules.

CONTROLS AND FUNCTIONS

Front and Rear Panel Interfaces

Describes front panel controls and rear panel connectors like ACC and EXT CONT.

Data Communications and PC Interface

Explains data transmission, ACC2, and personal computer interface functions.

ADJUSTMENT

Test Equipment and Preparation

Lists required test equipment and preparation steps for adjustments.

Common System Adjustments

Details common adjustments for receiver and transmitter systems.

PLL and Transmitter System Adjustments

Covers PLL system adjustments and transmitter system adjustments.

Adjustment Point Locations

Identifies adjustment points on various unit assemblies.

FUNCTIONAL FUNCTIONS

Unit Terminal Functionality

Lists terminal functions for Switch, RF, Final, and PLL units.

PC Board Views and Circuit Diagrams

Provides PC board views and circuit diagrams for various units.

Block and Level Diagrams

Shows block diagrams and level diagrams for system overview.

SPECIFICATIONS

TS-790A/E General Specifications

Lists general electrical and performance specifications for the TS-790A/E.

Accessory Unit Specifications

Details specifications for PS-31, SP-31, TSU-5, and VS-2 units.

SERVICE TECHNICAL REPORT

Model-Specific Service Reports

Documents service reports on part number changes and soldering issues for TS-790 models.

MODIFICATION METHOD

Frequency and Repeater Modifications

Details procedures for modifying frequency operations and cross-band repeaters.

Microprocessor Data

Destination Codes and Data

Lists destination codes for control units and microprocessor data.

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