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Kenwood TK-3302 Service Manual

Kenwood TK-3302
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This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
© 2008-9 PRINTED IN JA PAN
B51-8840-00
(
N
)
672
UHF FM TRANSCEIVER
SERVICE MANUAL
TK-3302/3302
(
U
)
TK-3306
CONTENTS
GENERAL .....................................................2
SYSTEM SET-UP .........................................3
REALIGNMENT ...........................................3
DISASSEMBLY FOR REPAIR ......................6
CIRCUIT DESCRIPTION ..............................9
SEMICONDUCTOR DATA .........................13
TERMINAL FUNCTION .............................13
COMPONENTS DESCRIPTION .................14
PARTS LIST ...............................................15
EXPLODED VIEW ......................................23
PACKING ....................................................24
ADJUSTMENT ..........................................26
PC BOARD
TX-RX UNIT (X57-7580-XX) ..................32
SCHEMATIC DIAGRAM ............................36
BLOCK DIAGRAM .....................................40
LEVEL DIAGRAM ......................................42
SPECIFICATIONS ......................................43
Whip antenna
(T90-1039-25)
(T90-1041-25)
Button knob (PTT)
(K29-9425-03)
Button knob
(Side1/Side2)
(K29-9426-03)
Knob (Selector)
(K29-9427-03)
Knob (Volume)
(K29-9309-13)
Badge (Front)
(B43-1622-04)
Plastic cabinet assy
(A02-4040-03)

Other manuals for Kenwood TK-3302

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Kenwood TK-3302 Specifications

General IconGeneral
Frequency RangeUHF: 400-470 MHz
Channel Capacity16
Power Output5W
Channel Spacing12.5 / 25 kHz
Operating Voltage7.4 V
IP RatingIP54
TypePortable
MIL-STDMIL-STD-810 C, D, E, F, G
Operating Temperature-30°C to +60°C

Summary

GENERAL

INTRODUCTION

Provides context for the manual's intended audience and scope.

ORDERING REPLACEMENT PARTS

Explains the procedure and required information for ordering replacement parts.

PERSONAL SAFETY

Lists essential safety precautions for operating and servicing the equipment.

SERVICE

Briefly describes the transceiver's design for easy servicing.

SYSTEM SET-UP

1. Modes

Describes different operational modes for transceiver programming and cloning.

2. How to Enter Each Mode

Details the steps to access various operational modes like User, PC, and Clone.

3. PC Mode

Explains the process of programming the transceiver using a PC and interface cable.

3-1. Preface

Introduces PC programming setup with hardware and software requirements.

3-2. Connection Procedure

Outlines the steps for connecting the transceiver to a PC for programming.

REALIGNMENT

3-3. KPG-22/KPG-22A Description

Describes the function and connection of the PC programming interface cable.

3-4. KCT-53U Description

Explains the USB adapter used for PC programming.

3-5. FPU (Programming Software) Description

Details the FPU software used for transceiver programming.

3-6. Programming with PC

Explains data transfer methods and pin functions during PC programming.

4. Wireless Clone Mode

Introduces the feature for copying transceiver data wirelessly.

4-1. Outline

Describes the purpose of Wireless Clone Mode for data copying.

4-2. Example

Explains how programming data can be copied via RF communication.

REALIGNMENT

4-3. Operation

Provides step-by-step instructions for performing wireless cloning.

Clone frequency table

Lists frequency tables used for wireless cloning operations.

DISASSEMBLY FOR REPAIR

1. Removing the Case Assembly from the Chassis

Details the steps to detach the case assembly from the transceiver chassis.

2. Removing the TX-RX unit from the Chassis

Explains how to remove the TX-RX unit from the chassis, including desoldering.

3. Removing the Battery Release Lever from the Case Assembly

Describes the procedure to remove the battery release lever.

4. Attaching the Battery Release Lever to the Case Assembly

Provides instructions for reattaching the battery release lever to the case assembly.

DISASSEMBLY FOR REPAIR

5. Assembling the Battery Release Lever

Details the steps for assembling the battery release lever mechanism.

6. Attaching the Positive Terminal to the Chassis

Explains how to attach the positive terminal to the chassis before reassembly.

7. Mounting the Chassis to the Case Assembly

Describes how to securely mount the chassis back into the case assembly.

DISASSEMBLY FOR REPAIR

8. Attaching the Antenna Receptacle to the Chassis

Provides instructions for screwing the antenna receptacle to the chassis.

9. The Nuts of the Volume Knob and Channel Knob

Highlights differences in knob nuts and suggests using a jig for removal.

10. Screw sequence for mounting the TX-RX unit to the chassis

Specifies the correct sequence for screwing the TX-RX unit back into the chassis.

CIRCUIT DESCRIPTION

1. Frequency Configuration

Explains the receiver's double conversion and frequency generation.

2. Receiver

Details the receiver's signal path and component functions.

Front End (RF AMP)

Describes the RF signal path from the antenna through the front-end amplifier.

First Mixer

Explains the mixing process that produces the first IF frequency.

IF Amplifier Circuit

Details the amplification and filtering of the IF signal.

Wide/Narrow Switching Circuit

Explains how wide and narrow bandwidths are switched based on data.

CIRCUIT DESCRIPTION

Audio Amplifier Circuit

Describes the signal path through the audio amplifier to the speaker.

Squelch

Explains how the squelch circuit detects and filters noise.

Receive Signaling

Covers QT/DQT, MSK, and DTMF signaling reception.

3. PLL Frequency Synthesizer

Explains the PLL circuit's role in generating local oscillator and RF signals.

PLL

Details the PLL circuit's frequency step and phase comparison mechanism.

VCO

Describes how the VCO operates and controls frequency.

Unlock Detector

Explains the function of the unlock detector circuit.

CIRCUIT DESCRIPTION

4. Transmitter System

Covers the microphone amplifier and drive/final amplifier stages.

Microphone Amplifier

Details the signal path from the microphone to the VCO modulation input.

Drive and Final Amplifier

Explains the RF amplification stages from pre-drive to final output.

APC Circuit

Describes the Automatic Power Control circuit's function.

Encode Signaling

Covers QT/DQT, DTMF, and MSK encoding.

5. Power Supply

Details the various 5V power supply outputs for different modes.

6. Control Circuit

Explains the MCU's role in controlling transceiver functions.

CIRCUIT DESCRIPTION

Frequency Shift Circuit

Describes the circuit that shifts the MCU clock frequency.

Memory Circuit

Explains the MCU and EEPROM memory configuration.

Low Battery Warning

Details how the MCU monitors battery voltage and indicates low levels.

7. Control System

Explains the control system involving keys and channel selector input.

SEMICONDUCTOR DATA

MCU: R5F212CCKCMB (TX-RX unit IC306)

Lists pin assignments and functions for the MCU.

TERMINAL FUNCTION

TX-RX unit (X57-7580-XX)

Details pin functions for the TX-RX unit connector CN301.

COMPONENTS DESCRIPTION

TX-RX unit (X57-7580-XX)

Lists and describes components within the TX-RX unit.

PARTS LIST

CAPACITORS

Lists capacitor types, values, and coding systems.

RESISTORS

Lists resistor types, values, and coding systems.

PARTS LIST

TK-3302/3302(U)/3306 (Y50-635X-XX)

Lists parts for the main unit, including cabinets and accessories.

TX-RX UNIT (X57-7580-XX)

Lists components specific to the TX-RX unit.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Continues listing chip capacitors and their specifications.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Continues listing chip capacitors and their specifications.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Lists various chip capacitors, connectors, and small fixed inductors.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Lists resistors (R series) and their values.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Lists diodes, transistors, FETs, and thermistors.

PARTS LIST

TX-RX UNIT (X57-7580-XX)

Lists ICs, transistors, FETs, and thermistors with their part numbers.

ADJUSTMENT

Test Equipment Required for Alignment

Lists necessary test equipment and their specifications for alignment.

Antenna connector adapter

Notes the SMA terminal and required adapters.

Repair Jig (Chassis)

Describes a jig used for chassis repair and voltage checks.

Battery Jig (W05-1011-00)

Explains the use of a battery jig for proper power connection during adjustments.

ADJUSTMENT

Frequency and Signaling

Lists frequencies and signaling parameters for adjustment.

Frequency (MHz)

Provides frequency tables for different transceiver models.

TK-3306 M3

Lists frequency tables specific to the TK-3306 M3 model.

List of FPU for transceiver

Lists FPU types for various transceiver models.

Adjustment Points

Shows component side view with adjustment points labeled.

Preparations for Tuning the Transceiver

Outlines preparations and precautions before tuning the transceiver.

ADJUSTMENT

Common Section

Details adjustments for common settings like battery voltage and VCO lock.

1. Setting

Specifies settings for battery terminal voltage and modulation.

2. VCO lock voltage RX

Details how to measure and adjust RX VCO lock voltage.

3. VCO lock voltage TX

Details how to measure and adjust TX VCO lock voltage.

Transmitter Section

Covers transmitter adjustments including frequency, power, and deviation.

1. Frequency Adjust

Explains how to adjust the transceiver's frequency.

2. High Transmit Power

Details the procedure for adjusting high transmit power.

3. Low Transmit Power

Details the procedure for adjusting low transmit power.

4. Maximum Deviation

Explains how to adjust maximum deviation for Wide and Narrow modes.

5. DOT Balance

Describes how to adjust DOT balance for Wide and Narrow modes.

ADJUSTMENT

6. QT Fine Deviation

Details how to adjust QT fine deviation for Wide and Narrow modes.

7. DQT Fine Deviation

Details how to adjust DQT fine deviation for Wide and Narrow modes.

8. DTMF Fine Deviation

Details how to adjust DTMF fine deviation for Wide and Narrow modes.

9. MSK Fine Deviation

Details how to adjust MSK fine deviation for Wide and Narrow modes.

Receiver Section

Covers receiver adjustments, specifically BPF wave adjustment.

1. BPF Wave Adjust

Explains how to adjust the Band Pass Filter waveform.

ADJUSTMENT

2. Sensitivity

Details how to measure and adjust receiver sensitivity.

3. Squelch Open

Explains how to adjust squelch open levels for Wide and Narrow modes.

4. Squelch Tight

Explains how to adjust squelch tight levels for Wide and Narrow modes.

5. Battery Warning Level

Details how to set the battery warning level.

PC BOARD

TX-RX UNIT (X57-7580-XX)

Shows the component side view of the TX-RX unit PCB.

Component side view (J79-0187-09)

Identifies component locations on the TX-RX unit's component side.

PC BOARD

TX-RX UNIT (X57-7580-XX)

Shows the component side view of the TX-RX unit PCB with component references.

PC BOARD

TX-RX UNIT (X57-7580-XX)

Shows the foil side view of the TX-RX unit PCB with component references.

PC BOARD

TX-RX UNIT (X57-7580-XX)

Shows the foil side view of the TX-RX unit PCB with component references.

SCHEMATIC DIAGRAM

TX-RX UNIT (X57-7580-XX)

Presents the main schematic diagram for the TX-RX unit.

SCHEMATIC DIAGRAM

TX-RX UNIT (X57-7580-XX)

Continues the schematic diagram for the TX-RX unit.

SCHEMATIC DIAGRAM

TX-RX UNIT (X57-7580-XX)

Continues the schematic diagram for the TX-RX unit.

SCHEMATIC DIAGRAM

TX-RX UNIT (X57-7580-XX)

Continues the schematic diagram for the TX-RX unit.

BLOCK DIAGRAM

TX-RX UNIT (X57-7580-XX)

Shows the overall block diagram of the TX-RX unit functions.

BLOCK DIAGRAM

TX-RX UNIT (X57-7580-XX)

Continues the block diagram illustrating signal flow and component interaction.

LEVEL DIAGRAM

Receiver Section

Illustrates signal levels within the receiver section.

Transmitter Section

Illustrates signal levels within the transmitter section.

SPECIFICATIONS

General

Lists general specifications like frequency range, channels, and battery life.

Receiver (Measurements made per TIA/EIA-603)

Details receiver performance specifications including sensitivity and selectivity.

Transmitter (Measurements made per TIA/EIA-603)

Details transmitter performance specifications like RF power and modulation.

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