Tk2302

VHF FM TRANSCEIVER

TK-2302/2302(V) TK-2306
SERVICE MANUAL
© 2008-9 PRINTED IN JAPAN B51-8838-00 (N) 672

CONTENTS
GENERAL.....................................................2 SYSTEM SET-UP .........................................3 REALIGNMENT ...........................................3 DISASSEMBLY FOR REPAIR ......................6 CIRCUIT DESCRIPTION ..............................9SEMICONDUCTOR DATA .........................13 TERMINAL FUNCTION .............................13 COMPONENTS DESCRIPTION.................14 PARTS LIST ...............................................15 EXPLODED VIEW ......................................22 PACKING....................................................23 ADJUSTMENT ..........................................25 PC BOARD TX-RX UNIT(X57-7570-20) ...................30 SCHEMATIC DIAGRAM ............................34 BLOCK DIAGRAM .....................................38 LEVEL DIAGRAM ......................................40 SPECIFICATIONS ......................................41

Helical antenna (T90-1036-15)

Knob (Selector) (K29-9427-03) Knob (Volume) (K29-9309-13)

Badge (Front) (B43-1622-04) Button knob (PTT) (K29-9425-03)Button knob (Side1/Side2) (K29-9426-03)

Plastic cabinet assy (A02-4040-03)

. This product complies with the RoHS directive for the European market.

This product uses Lead Free solder.

TK-2302/2302(V)/2306
Document Copyrights
Copyright 2008 by Kenwood Corporation. All rights reserved. No part of this manual may be reproduced, translated, distributed, or transmitted in any form or byany 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. Kenwoodreserves the right to make changes to any products herein at any time for improvement purposes.

GENERAL
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced technicians familiar with similar types of commercial grade commu ni ca tions equipment. It contains all required service information for the equipment and is current as of the publication date. Changes whichmay occur after publication are covered by either Service Bulletins or Manual Revisions. These are issued as required.

PERSONAL SAFETY
The following precautions are recommended for personal safety: • DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated. • SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in anexplosive atmosphere. • This equipment should be serviced by a qualified technician only.

ORDERING REPLACEMENT PARTS
When ordering replacement parts or equipment information, the full part identification number should be included. This applies to all parts : components, kits, or chassis. If the part number is not known, include the chassis or kit number of which it is a part, and a sufficientdescription of the required component for proper identification.

SERVICE
This transceiver is designed for easy servicing. Refer to the schematic diagrams, printed circuit board views, and alignment procedures contained within.
Frequency range 136~ 174MHz

Model TK-2302 TK-2302(V) TK-2306

Type K,P,M K M

TX-RX unit

Remarks

X57-7570-20

IF1: 38.85MHz LOC: 38.4MHz

2TK-2302/2302(V)/2306
SYSTEM SET-UP
Merchandise received Frequency range (MHz) RF power TX/RX 136~174 5.0W Type TK-2302: K,P,M TK-2302(V): K TK-2306: M

Choose the type of transceiver

Transceiver programming

A personal computer, programming interface (KPG-22/22A), and FPU (programming software) are required for programming. (The frequency, TX power HI/LOW, and signalling data are programmed for the...