General; Ordering Replacement Parts; Personal Safety; Pre-Installation Considerations - Kenwood NX-800 Service Manual

NX-800
Document Copyrights
Copyright 2007 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, elec-
tronic, 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.
Firmware Copyrights
The title to and ownership of copyrights for firmware
embedded in Kenwood product memories are reserved for
Kenwood Corporation. Any modifying, reverse engineering,
copy, reproducing or disclosing on an Internet website of the
firmware is strictly prohibited without prior written consent of
Kenwood Corporation. Furthermore, any reselling, assigning
or transferring of the firmware is also strictly prohibited with-
out embedding the firmware in Kenwood product memories.
NXDN Transceivers:
The AMBE+2(TM) voice coding technology is embedded in
the firmware under the license of Digital Voice Systems, Inc.
INTRODUCTION
SCOPE OF THIS MANUAL
This manual is intended for use by experienced techni-
cians familiar with similar types of commercial grade commu-
nications equipment. It contains all required service informa-
tion for the equipment and is current as of this publication
date. Changes which may occur after publication are covered
by either Service Bulletins or Manual Revisions, which are
issued as required.

ORDERING REPLACEMENT PARTS

When ordering replacement parts or equipment informa-
tion, the full part identification number should be included.
This applies to all parts : components, kits, and chassis. If the
part number is not known, include the chassis or kit number
of which it is a part and a sufficient description of the required
component for proper identification.
2

GENERAL

PERSONAL SAFETY

The following precautions are recommended for personal
safety :
• DO NOT transmit if someone is within two feet (0.6
meter) of the antenna.
• DO NOT transmit until all RF connectors are secure and
any open connectors are properly terminated.
• SHUT OFF this equipment when near electrical blasting
caps or while in an explosive atmosphere.
• All equipment should be properly grounded before power-
up for safe operation.
• This equipment should be serviced by only qualified tech-
nicians.

PRE-INSTALLATION CONSIDERATIONS

1. UNPACKING
Unpack the radio from its shipping container and check for
accessory items. If any item is missing, please contact
KENWOOD immediately.
2. LICENSING REQUIREMENTS
Federal regulations require a station license for each radio
installation (mobile or base) be obtained by the equipment
owner. The licensee is responsible for ensuring transmitter
power, frequency, and deviation are within the limits permit-
ted by the station license.
Transmitter adjustments may be performed only by a
licensed technician holding an FCC first, second or general
class commercial radiotelephone operator's license. There is
no license required to install or operate the radio.
3. PRE-INSTALLATION CHECKOUT
3-1. Introduction
Each radio is adjusted and tested before shipment. How-
ever, it is recommended that receiver and transmitter opera-
tion be checked for proper operation before installation.
3-2. Testing
The radio should be tested complete with all cabling and
accessories as they will be connected in the final installation.
Transmitter frequency, deviation, and power output should
be checked, as should receiver sensitivity, squelch operation,
and audio output. Signaling equipment operation should be
verified.