Kenwood TK-3202L UHF FM Transceiver Service Manual
Document Copyrights
Copyright 2006 by Kenwood Corporation. All rights reserved. No part of this manual may be reproduced, translated, distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any purpose without the prior written permission of Kenwood.
Disclaimer
While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves the right to make changes to any products herein at any time for improvement purposes.
Service Manual Overview
This document is the Service Manual for the Kenwood TK-3202L UHF FM Transceiver. It provides comprehensive information for experienced technicians, covering system set-up, realignment, circuit descriptions, parts lists, exploded views, packing, adjustments, PC board layouts, schematic diagrams, block diagrams, level diagrams, optional accessories, and specifications.
Scope of this Manual
This manual is intended for use by experienced technicians familiar with commercial grade communications equipment. It contains all required service information and is current as of the publication date. Changes may be covered by Service Bulletins or Manual Revisions.
Ordering Replacement Parts
When ordering replacement parts or equipment information, include the full part identification number. If the part number is unknown, provide the chassis or kit number and a sufficient description of the required component.
Personal Safety Precautions
- DO NOT transmit until all RF connectors are verified secure and properly terminated.
- SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere.
- This equipment should be serviced by a qualified technician only.
Service Information
This transceiver is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and alignment procedures provided within this manual.
System Set-Up Flow
The system set-up involves receiving the merchandise, ensuring license and frequency allocation by the FCC, choosing the transceiver type, and performing transceiver programming. The process includes steps like connecting to a personal computer with programming interface and software. Optional accessories like antennas and speaker microphones can be integrated.
| Model & destination | TX-RX Unit | Frequency range | Remarks |
| TK-3202L K,M | X57-6890-26 | 450~490MHz | IF1 : 38.85MHz |
| TK-3202L K2,M2 | X57-6890-27 | 470~512MHz | LOC : 38.4MHz |
| TK-3202L K3 | X57-6890-28 | 400~430MHz |
| Frequency range (MHz) | RF power | Type |
| TX/RX 450~490 | 4.0W | TK-3202L (K,M) |
| TX/RX 470~512 | 4.0W | TK-3202L (K2,M2) |
| TX/RX 400~430 | 4.0W | TK-3202L (K3) |
Programming requires a personal computer (IBM PC or compatible), programming interface (KPG-22/22A), USB adapter (KCT-53U), and programming software (KPG-87D). The frequency, TX power HI/LOW, and signaling data are programmed for the transceiver.
Are you using the optional antenna? YES: KRA-23 or KRA-27 (Optional antenna) NO. Are you using the speaker microphone? YES: KMC-17 or KMC-21 (Option) NO. Delivery.
Realignment
1. Modes
- User mode: For normal use.
- PC mode: For communication between transceiver and PC (IBM compatible).
- Data programming mode: Used to read/write frequency data and other features.
- PC test mode: Used to check the transceiver via PC.
- Clone mode: Used to transfer programming data from one transceiver to another, either directly or via RF communication.
2. How to Enter Each Mode
| Mode | Operation |
| User mode | Power ON |
| PC mode | Received commands from PC |
| Clone mode | [PTT]+[Side2]+Power ON (Two seconds) |
3. PC Mode
Programming requires a personal computer, programming interface (KPG-22/22A), USB adapter (KCT-53U), and programming software (KPG-87D). Figure 1 illustrates the setup.
Connection procedure: Connect the transceiver to the personal computer with the interface cable and USB adapter. Install the KCT-53U driver if using the USB adapter. When POWER is switched on, user mode is entered. The transceiver enters PC mode when a command is sent from the PC. Red LED indicates transmission, green LED indicates reception.
KPG-22/KPG-22A Description: This interface cable connects the transceiver's SP/MIC connector to the computer's RS-232C serial port, converting logic levels.
KCT-53U Description: This USB adapter cable connects the KPG-22A to a computer's USB port. Driver software installation is required.
Programming Software KPG-87D Description: This software runs on IBM PC compatible machines and allows data input, reading, editing, and printing. It also facilitates transceiver tuning.
4. Clone Mode
Allows dealers to copy transceiver data without a PC, via RF communication. The clone source and target must be in Clone mode. Specific frequency tables are provided for wireless cloning. Clone mode cannot be entered in battery low state. A unit must be programmed to be a Source Unit. The transmit output power is automatically set to Low in Clone mode.
| Type | K,M | K2,M2 | K3 |
| Operating Clone Frequency (MHz) | 450~490 | 470~512 | 400~430 |
| 1 | 450.000 | 472.000 | 400.000 |
| 2 | 452.000 | 474.000 | 401.000 |
| 3 | 454.000 | 476.000 | 402.000 |
| 4 | 456.000 | 478.000 | 403.000 |
| 5 | 458.000 | 480.000 | 404.000 |
| 6 | 460.000 | 482.000 | 405.000 |
| 7 | 462.000 | 484.000 | 406.000 |
| 8 | 464.000 | 486.000 | 407.000 |
| 9 | 466.000 | 488.000 | 408.000 |
| 10 | 468.000 | 490.000 | 409.000 |
| 11 | 470.000 | 492.000 | 410.000 |
| 12 | 472.000 | 494.000 | 411.000 |
| 13 | 474.000 | 496.000 | 412.000 |
| 14 | 476.000 | 498.000 | 413.000 |
| 15 | 478.000 | 500.000 | 414.000 |
| 16 | 480.000 | 502.000 | 415.000 |
| 17 | 482.000 | 504.000 | 416.000 |
| 18 | 484.000 | 506.000 | 417.000 |
| 19 | 486.000 | 508.000 | 418.000 |
| 20 | 488.000 | 510.000 | 419.000 |
Circuit Description
1. Control Circuit
The control circuit, managed by microprocessor IC405, handles transmission/reception switching, data reading from memory, PLL frequency data sending, squelch control, audio mute control, and tone/encode data transmission.
1) Frequency Shift Circuit
Microprocessor IC405 operates at 7.3728MHz, with a circuit that shifts frequency via BEAT SHIFT SW (Q407, Q408) to evade beat sounds.
2) Memory Circuit
Memory circuit comprises CPU (IC405) and EEPROM (IC406) storing the control program and channel data.
3) Low Battery Warning
The microprocessor monitors battery voltage. A warning tone and blinking red LED indicate low battery levels, with transmission stopping below a specified voltage.
Parts List
Detailed lists of components including capacitors, resistors, and various electronic parts are provided, categorized by type and reference number. Dimensions and specifications for chip components are also included. The list covers a wide range of components such as resistors (e.g., RK73GB2A000JX, RK73HB1J104J), capacitors (e.g., CK73HB1H332K, CC73GCH1H101J), inductors, diodes, transistors, ICs, and other miscellaneous parts.
Exploded View
An exploded view diagram illustrates the physical assembly of the TK-3202L transceiver, showing the arrangement of major components with corresponding reference numbers.
Packing Instructions
Details the standard contents of the TK-3202L package, including the transceiver, instruction manual, protection bag, charger, AC adapter, battery pack, belt clip, and item carton case.
Adjustment Procedures
Test Equipment Required for Alignment
Lists essential test equipment such as Standard Signal Generators (SSG), Power Meters, Deviation Meters, Digital Volt Meters (DVM), Oscilloscopes, Spectrum Analyzers, Tracking Generators, and Dummy Loads.
The following parts are required for adjustment
Notes the need for an antenna connector adapter (SMA terminal) and a repair jig (part No.: A10-4086-03) and battery jig (W05-1011-00).
Adjustment Points
Details frequency and signaling adjustments for different model types (K, M; K2, M2; K3) and lists specific adjustment points for common and transmitter sections, including frequency, power, deviation, and signaling settings. For example, frequency adjustments are specified per channel for each model type.
Receiver Section
Describes BPF Wave adjustment procedures for different frequency ranges (K,M; K3; K2,M2), including spectrum analyzer settings (Center frequency, Span, RBW, VBW, ATT) and expected waveform displays.
PC Board Layouts
Provides component side and foil side views of the TX-RX unit PC board (J79-0045-09), indicating the location of numerous components with reference numbers. These diagrams are crucial for component identification and troubleshooting.
Schematic Diagrams
Presents detailed schematic diagrams of the transceiver's electronic circuits, including the PLL system, voltage regulators, microprocessor, audio processor, transmitter, and receiver sections. These diagrams map out the electrical connections and component interrelationships.
Block Diagrams
Illustrates the overall functional blocks of the TK-3202L transceiver, showing interconnections between major subsystems like the microprocessor, PLL, audio processor, transmitter, and receiver. This provides a high-level understanding of the radio's architecture.
Level Diagram
Depicts signal levels and stages within the receiver and transmitter sections, indicating typical signal strengths at various points in the circuit, often represented in dBm or mVrms.
Optional Accessories
KSC-35 (Rapid Charger)
External view and specifications for the rapid charger.
KNB-45L (Li-ion Battery Pack)
External view, specifications (voltage, capacity), and schematic diagram for the Li-ion battery pack.
Specifications
Provides detailed technical specifications for the TK-3202L transceiver, covering general parameters (frequency range, channels, voltage, battery life), receiver performance (sensitivity, selectivity, intermodulation), transmitter performance (RF power, modulation, noise), dimensions, and weight. Includes company contact information for Kenwood Corporation and its global subsidiaries.
| General | |
| Frequency Range | 450~490MHz (K,M) 470~512MHz (K2,M2) 400~430MHz (K3) |
| Number of Channels | Max. 16 |
| Channel Spacing | 25kHz (Wide) 12.5kHz (Narrow) |
| PLL Channel Stepping | 5kHz, 6.25kHz |
| Operating Voltage | 7.5 V DC ±20% |
| Battery Life (With KNB-45L, 2000mAh battery) | Approx. 18 hours |
| Operating Temperature Range | -30°C to +60°C (-22 °F to +140 °F) |
| Frequency Stability | ±2.5ppm (-30°C to +60°C) |
| Channel Frequency Spread | 40MHz (K,M) 42MHz (K2,M2) 30MHz (K3) |
| Dimensions and Weight (Radio Only) | 54 (2-1/8) W x 122 (4-13/16) H x 21.1 (13/16) D mm (inches) 160g (0.35lbs) |
| Dimensions and Weight (With KNB-45L) | 54 (2-1/8) W x 122 (4-13/16) H x 33 (1-5/16) D mm (inches) 280g (0.62lbs) |
| Receiver (Sensitivity) | EIA 12dB SINAD: 0.25µV (Wide)/0.28µV (Narrow) |
| Receiver (Selectivity) | 70dB (Wide)/60dB (Narrow) |
| Receiver (Intermodulation) | 65dB (Wide)/60dB (Narrow) |
| Receiver (Spurious Response) | 60dB |
| Receiver (Audio Power Output) | 500mW at 8Ω less than 10% distortion |
| Transmitter (RF Power Output) | 4W/1W |
| Transmitter (Spurious and Harmonics) | 65dB |
| Transmitter (Modulation) | 16K0F3E (Wide)/11K0F3E (Narrow) |
| Transmitter (FM Noise) | 45dB (Wide)/40dB (Narrow) |
| Transmitter (Audio Distortion) | Less than 5% |
Kenwood Corporation Contact Information:
Kenwood Corporation (Japan): 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
Kenwood U.S.A. Corporation: P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.
Kenwood Electronics Canada Inc.: 6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
Kenwood Electronics Deutschland GmbH: Rembrücker Str. 15, 63150 Heusenstamm, Germany
Kenwood Electronics Belgium N.V.: Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
Kenwood Electronics France S.A.: L'Etoile Paris Nord 2, 50 Allée des Impressionnistes, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex
Kenwood Electronics UK Limited: KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom
Kenwood Electronics Europe B.V.: Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Kenwood Electronics Italia S.p.A.: Via G. Sirtori, 7/9 20129 Milano, Italy
Kenwood Ibérica, S.A.: Bolivia, 239-08020 Barcelona, Spain
Kenwood Electronics Australia Pty. Ltd.: 16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
Kenwood Electronics (Hong Kong) Ltd.: Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong
Kenwood Electronics Singapore Pte Ltd: 1 Ang Mo Kio Street 63, Singapore 569110
