Service manual

Table Of Contents

Foreword

This manual provides sufficient information to enable qualified service technicians to troubleshoot and repair ASTRO

Digital Spectra

and ASTRO Digital Spectra Plus mobile radios (models W3, W4, W5, W7, and W9) to the component level.

For the most part, the information in this manual pertains to both ASTRO Digital Spectra and ASTRO Digital Spectra Plus

radios. Exceptions are clearly noted where they occur.

For details on radio operation or basic troubleshooting, refer to the applicable manuals available separately. A list of related

publications is provided in the section, “Related Publications,” on page xiv.

Product Safety and RF Exposure Compliance

ATTENTION!

This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements.

Before using this product, read the RF energy awareness information and operating instructions in the

Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number

68P81095C99) to ensure compliance with RF energy exposure limits.

Manual Revisions

Changes which occur after this manual is printed are described in FMRs (Florida Manual Revisions). These FMRs provide

complete replacement pages for all added, changed, and deleted items, including pertinent parts list data, schematics, and

component layout diagrams.

Computer Software Copyrights

The Motorola products described in this manual may include copyrighted Motorola computer programs stored in

semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain

exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in

any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the

Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in

any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not

be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or

patent applications of Motorola, except for the normal non-exclusive license to use that arises by operation of law in the

sale of a product.

Document Copyrights

No duplication or distribution of this document or any portion thereof shall take place without the express written permission

of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic

or mechanical, for any purpose without the express written permission of Motorola.

Disclaimer

The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is

assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve

readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product

or circuit described herein; nor does it cover any license under its patent rights nor the rights of others.

Trademarks

MOTOROLA, the Stylized M logo, ASTRO, and Spectra are registered in the US Patent & Trademark Office. All other

products or service names are the property of their respective owners.

Before using this product, read the operating instructions

for safe usage contained in the Product Safety and RF

Exposure booklet enclosed with your radio.

C a u t i o n