Kenwood NX-300S Service Manual

Also see for NEXEDGE NX-300: Brochure Instruction manual Instruction manual Instruction manual Instruction manual

NX-300(S)2Document CopyrightsCopyright 2011 by JVC KENWOOD Corporation. Allrights 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 other-wise, for any purpose without the prior written permission ofJVC KENWOOD Corporation.DisclaimerWhile every precaution has been taken in the preparationof this manual, JVC KENWOOD Corporation assumes noresponsibility for errors or omissions. Neither is any liabilityassumed for damages resulting from the use of the informa-tion contained herein. JVC KENWOOD Corporation reservesthe right to make changes to any products herein at any timefor improvement purposes.Firmware CopyrightsThe title to and ownership of copyrights for firmwareembedded in Kenwood product memories are reserved forJVC KENWOOD Corporation. Any modifying, reverse en-gineering, copy, reproducing or disclosing on an Internetwebsite of the firmware is strictly prohibited without priorwritten consent of JVC KENWOOD Corporation. Further-more, any reselling, assigning or transferring of the firmwareis also strictly prohibited without embedding the firmware inKenwood product memories.Transceivers containing AMBE+2™ Vocoder:The AMBE+2™ voice coding technology is embedded inthe fi rmware under the license of Digital Voice Systems, Inc.INTRODUCTIONSCOPE OF THIS MANUALThis manual is intended for use by experienced techni-cians familiar with similar types of commercial grade com-munications equipment. It contains all required service infor-mation for the equipment and is current as of the publicationdate. Changes which may occur after publication are cov-ered by either Service Bulletins or Manual Revisions. Theseare issued as required.ORDERING REPLACEMENT PARTSWhen ordering replacement parts or equipment informa-tion, the full part identification number should be included.This applies to all parts : components, kits, or chassis. If thepart number is not known, include the chassis or kit numberof which it is a part, and a sufficient description of the re-quired component for proper identifi cation.PERSONAL SAFETYThe following precautions are recommended for personalsafety:• DO NOT transmit until all RF connectors are verified se-cure and any open connectors are properly terminated.• SHUT OFF and DO NOT operate this equipment nearelectrical blasting caps or in an explosive atmosphere.• This equipment should be serviced by a qualified techni-cian only.SERVICEThis transceiver is designed for easy servicing. Refer tothe schematic diagrams, printed circuit board views, andalignment procedures contained within.NOTEYou must use KPG-111D version 2.70 or later for thistransceiver. KPG-111D versions earlier than version 2.70 willnot work properly.GENERAL