Kenwood TK-3170 X2 Service Manual

Uhf fm transceiver

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UHF FM TRANSCEIVER

TK-3170

SERVICE MANUAL

E,X2 versions

Does not come with antenna.

Antenna is available as an option.

GENERAL ................................................... 2

SYSTEM SET-UP ....................................... 2

REALIGNMENT .......................................... 3

DISASSEMBLY FOR REPAIR .................. 16

CIRCUIT DESCRIPTION ........................... 19

SEMICONDUCTOR DATA ....................... 24

COMPONENTS DESCRIPTION ............... 25

PARTS LIST .............................................. 27

EXPLODED VIEW ..................................... 36

PACKING .................................................. 37

Knob (Selector)

(K29-9340-13)

Knob (Volume)

(K29-9278-13)

Badge

(B43-1178-04)

Knob (PTT)

(K29-9339-03)

Key top (Side)

(K29-9341-03)

Plastic cabinet assy

(A02-3891-13)

Packing

(G53-1652-11)

CONTENTS

B51-8738-00 ( N ) 355

ADJUSTMENT ......................................... 38

TERMINAL FUNCTION ............................ 47

PC BOARD

TX-RX UNIT (X57-701X-XX) (A/4) .......... 48

TX-RX UNIT (X57-701X-XX) (B,C,D/4) ... 50

SCHEMATIC DIAGRAM ........................... 54

BLOCK DIAGRAM .................................... 62

LEVEL DIAGRAM ..................................... 64

KSC-30 (CHARGER) ................................. 65

SPECIFICATIONS .................. BACK COVER

This product uses Lead Free solder.

Table of Contents

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Do you have a question about the TK-3170 X2 and is the answer not in the manual?

Questions and answers

Summarization of Contents

General and System Setup

Introduction Scope of Manual

Manual intended for experienced technicians covering all service information.

Ordering Replacement Parts

Procedures for ordering replacement parts with full identification number.

Personal Safety Precautions

Recommended precautions for personnel safety during operation and servicing.

Service Information

Information on easy servicing and referring to diagrams/procedures.

System Setup Procedure

Setup procedure for the transceiver including antenna and speaker options.

Realignment Procedures

Operating Modes Overview

Overview of different operating modes for the transceiver.

Entering Operating Modes

Instructions for entering various operating modes.

Panel Test Mode Setup

Setting method for Panel Test Mode, refers to ADJUSTMENT.

Panel Tuning Mode Setup

Setting method for Panel Tuning Mode, refers to ADJUSTMENT.

PC Mode Operations

Using PC, interface cable, and software for programming.

Connection Procedure for PC Mode

Connecting the transceiver to a PC for data transfer and programming.

KPG-22 Interface Cable Description

Description of the PC programming interface cable (Option).

KPG-101D Programming Software

Description of the KPG-101D programming software.

Firmware Programming Mode

Upgrading transceiver features using flash memory.

Clone Mode Operation

Transferring programming data between transceivers.

Self-Programming Mode

Writing frequency and signaling data to the equipment.

Entering Self-Programming Mode

Procedure to enter Self-Programming Mode.

Adding Data Password for Self-Programming

Entering password to activate self-programming mode.

Zone/Channel Select Mode

Procedure for selecting zones and channels.

Channel Edit Mode

Steps to enter Channel Edit Mode and modify settings.

Zone Edit Mode Operations

Procedure for entering Zone Edit Mode and modifying settings.

Function Setting Mode

Setting various transceiver functions like backlight, tones, and squelch.

Disassembly and Repair Procedures

Memory Reset Mode

Clearing function data or returning to default reset values.

Firmware Version Information Mode

Displaying the transceiver's internal firmware version.

Removing the FPC

Procedure to remove the Flexible Printed Circuit.

Separating Speaker Holder

Procedure to separate the speaker holder from the control unit.

Assembling Antenna Connector

Assembling antenna connector and terminal parts before replacement.

Applying Double-Sided Tape

Proper positioning of double-sided tape on the chassis.

Applying Fibrous Sheet

Applying fibrous sheet correctly to prevent protrusion.

Mounting the LCD Fixture

Ensuring correct alignment when mounting LCD fixture onto PCB.

Replacing Speaker and Microphone

Steps for replacing speaker and microphone components.

Circuit Description

Frequency Configuration

Details on receiver frequency configuration and PLL circuit operation.

Receiver System Overview

Description of the receiver system components and functions.

Receiver Front End (RF AMP)

Description of the receiver's front end RF amplifier circuit.

Receiver First Mixer Circuit

Explanation of the first mixer circuit and its function.

IF Amplifier Circuit

Description of the IF amplifier circuit and its filtering.

Wide/Narrow Switching Circuit

Circuit for switching between different bandwidth settings.

Audio Amplifier Circuit

Description of the audio amplifier circuit and speaker output.

Squelch Circuit Explanation

Explanation of the squelch circuit and its noise level detection.

Transmitter System Overview

Description of the transmitter system stages.

Microphone Amplifier Circuit

Description of the microphone amplifier and AGC circuit.

Drive and Final Amplifier Stages

Description of the drive and RF final amplifier stages.

APC Circuit Description

Description of the Automatic Power Control circuit.

Frequency Synthesizer Unit

Details on frequency synthesizer components like TCXO, VCO, PLL.

Control Circuit Functions

Control circuit functions managed by the microprocessor.

Frequency Shift Circuit

Circuit for shifting frequency to evade beat sound.

Memory Circuit Details

Description of flash memory and EEPROM for storing data.

Low Battery Warning System

Monitoring battery voltage and warning indicators.

Battery Type Detection

Transceiver detection of battery type based on resistance.

Key Input Signal Path

Signal path from keys and channel selector to microprocessor.

Signaling Circuit Operations

Encoding and decoding of signaling data.

Signal Encoding Details

Output of low-speed and high-speed data for encoding.

Signal Decoding Details

Microprocessor processing of decoded QT/DQT, 5-tone, MSK, and DTMF signals.

Power Supply Configurations

Description of the five 5V power supplies for the microprocessor.

Semiconductor and Component Data

Microprocessor Pinout and Functions

Pinout and function details for the microprocessor.

TX-RX Unit Component Usage

List of components and their use/function in the TX-RX unit.

Parts List

TK-3170 Model Parts

List of parts for the TK-3170 model.

TX-RX Unit Parts List

Parts list for the TX-RX unit.

Exploded View Diagram

Packing Instructions

Adjustment Procedures

Transceiver Controls Overview

Overview of transceiver controls and their functions.

Panel Test Mode LCD Display

Display indications in panel test mode.

Frequency and Signaling Adjustments

Adjusted frequencies and signaling settings.

Test Frequency Settings

Table of test frequencies for E and X2 models.

Test Signaling Settings

Table of test signaling types and settings.

Key Operations in Test Modes

Key functions and operations in test modes.

LED Indicator Explanations

Explanation of LED indicators for transmission and battery status.

Panel Tuning Mode Guide

Preparations and procedures for tuning the transceiver.

Tuning Preparations

Steps before tuning, including power supply and load connection.

Transceiver Tuning Procedure

Procedure to place transceiver in tuning mode and adjust settings.

Panel Tuning Mode LCD Display

Display items and values in panel tuning mode.

Reference Level Frequency Adjustments

Table of frequencies for reference level adjustments.

Adjustable Items and Display

List of adjustable items and their display formats.

Tuning Mode Key Operations

Key functions for adjusting items in tuning mode.

Test Equipment for Alignment

List of test equipment and their major specifications for alignment.

Antenna Connector Adapter Usage

Using SMA connectors and adapters for adjustments.

Battery Jig Connection Guide

Connecting the battery jig and power supply for adjustments.

Nut Wrench Tool Recommendation

Tool recommendation for volume and channel selector nuts.

Common Adjustment Section

Common adjustment items, excluding Wide 4k for X2 model.

Setting Adjustments

Setting battery voltage and modulation parameters.

VCO Lock Voltage Adjustments

Adjusting VCO lock voltage for RX and TX modes.

Transmitter Section Adjustments

Adjustments for the transmitter section, excluding Wide 4k for X2 model.

Frequency Adjustment

Adjusting transceiver frequency using selector knob.

High Power Output Adjustment

Adjusting high power output levels.

High Power Output Check

Checking high power output and current.

Low Power Output Adjustment

Adjusting low power output levels.

Low Power Output Check

Checking low power output and current.

DQT Balance Adjustment

Adjusting DQT balance for proper demodulation waves.

Maximum Deviation Adjustment

Adjusting maximum deviation for different bandwidths.

Microphone Sensitivity Check

Checking microphone sensitivity in panel test mode.

VOX1 Sensitivity Adjustment

Adjusting VOX sensitivity settings.

VOX10 Delay Adjustment

Adjusting VOX delay settings.

QT Deviation Adjustment

Adjusting QT deviation for different bandwidths.

DQT Deviation Adjustment

Adjusting DQT deviation for different bandwidths.

DTMF Deviation Adjustment

Adjusting DTMF deviation for different bandwidths.

MSK Deviation Adjustment

Adjusting MSK deviation for different bandwidths.

TONE Deviation Adjustment

Adjusting TONE deviation for different bandwidths.

Battery Detection Writing

Writing battery detection parameters.

Battery Detection Check

Checking battery detection and transmission status.

Receiver Section Adjustments

Adjustments for the receiver section.

Sensitivity Adjustment

Adjusting receiver sensitivity for maximum RSSI.

Sensitivity Check

Checking receiver sensitivity using SINAD.

Squelch (Preset) Adjustment

Adjusting squelch open/close points.

Low RSSI Adjustment

Adjusting low RSSI levels in different modes.

Squelch (Tight) Adjustment

Adjusting tight squelch points in different modes.

High RSSI Adjustment

Adjusting high RSSI levels in different modes.

Terminal Functions

CN60 Connector Pinout

Pinout and function details for CN60 connector.

Solder Point Connections

Connection details for solder points like MIC, AF, SP, etc.

PC Board Layouts

TX-RX Unit (A/4) Component View