Motorola M11URD6CB1_N, M11URD6CU1_N, M11UGD6CU1_N, M11UGD6CB1_N Service Manual

GTX

LTR

®

/ Privacy Plus

800 MHz

Mobile Radio

Service Manual

®

6880905Z99-O

Product Software License Agreement

THIS LICENSE AGREEMENT BETWEEN YOU, THE USER, AND MOTOROLA, APPLIES TO THE SOFTWARE
EMBEDDED IN OR DELIVERED WITH THE ACCOMPANYING MOTOROLA PRODUCT (“SOFTWARE”),
AND IS APPLICABLE UNLESS A SIGNED LICENSE AGREEMENT COVERING ITS SUBJECT MATTER HAS
BEEN EXECUTED BETWEEN YOU AND MOTOROLA. BY USING THE PRODUCT, YOU ACKNOWLEDGE
THAT THIS AGREEMENT HAS BEEN READ AND UNDERSTOOD AND THAT YOU AGREE TO BE BOUND
BY ITS TERMS AND CONDITIONS. IF YOU DO NOT AGREE, YOU ARE NOT LICENSED TO USE THE PROD­UCT, AND IF YOU ARE THE PURCHASER OF THE PRODUCT, YOU SHOULD IMMEDIATELY RETURN THE
PRODUCT IN ITS ENTIRETY TO ITS PLACE OF PURCHASE FOR A REFUND.

Motorola grants to You a non-exclusive license to use the SOFTWARE in the manner described in the documenta­tion associated with the product. Motorola retains ownership of the SOFTWARE including all patent, copyrights,
and other intellectual property rights. You may transfer this license to use the SOFTWARE as long as the transferee
agrees to be bound by the terms of this Agreement.

You agree not to reverse engineer or create derivative works of the SOFTWARE; not to transmit the SOFTWARE
electronically; not to modify, configure, or use the SOFTWARE in any manner not authorized by MOTOROLA;
and, except as an integral part of the product, not to rent, lease, or convey the SOFTWARE.

MOTOROLA SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM
THE USE OF THIS SOFTWARE.

With respect to the U.S. Government, if acquired under FAR policy (52.227-19), the SOFTWARE is provided with
Restricted Rights, and if acquired under DFARS policy (227.7202), then the SOFTWARE is provided only with the
commercial rights of this Agreement.

This license is effective until terminated. It will terminate immediately and automatically if You fail to comply with
any term of this Agreement.

You agree that this is the complete and exclusive statement of the agreement between You and Motorola and that
any modification of these terms shall be made only by mutual agreement and evidenced by written amendment
signed by both parties. This Agreement shall be governed and interpreted by the laws of the State of Illinois,
United States of America.

Computer Software Copyrights

This manual may not be reproduced, in whole or in part, in any form whatsoever, without the express written permis­sion of Motorola, Inc.

The Motorola products described in this manual contain one or more computer programs. These computer pro­grams are protected by copyright law and international treaties. Unauthorized reproduction or distribution of
these programs, or any part thereof, may result in severe civil and criminal penalties, and will be prosecuted to the
maximum extent possible under the law. U.S. and international patents pending.

, MOTOROLA, and PRIVACY PLUS are registered trademarks of Motorola, Inc.
GTX is a trademarks of Motorola, Inc.
LTR is a registered trademark of E.F. Johnson Company.
TORX is a registered trademark of Camcar/Textron.

© 2000 by Motorola, Inc. All Rights Reserved.

This product is covered by one or more issued U.S. Patents. Other Patent applications pending.

Table of Contents

Foreword

Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

How to Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Ordering Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Model Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Maintenance Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Radio Model Numbering System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Section 1

Introduction

Notational Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Note. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Scope of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Air Bag Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Vehicles equipped with air bags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

LP Gas Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Section 2

Basic Maintenance

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Plastic Surfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Circuit Boards and Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Safe Handling of CMOS Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Repair Procedures and Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Parts Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Rigid Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Chip Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Chip Component Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Chip Component Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Over-Molded Pad-Array Carrier (OMPAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

OMPAC Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

OMPAC Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Shields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Shield Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Shield Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Replacement ofTransistor Q6505. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

June, 2000 6880905Z99-O i

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Removing Faulty Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Preparing Main Board for New Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Positioning New Transistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Soldering Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Installing Flange Capacitors C6567 and C6568.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

Reassembly of Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Section 3

Test Equipment, Service Aids, and Tools

Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Field Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Section 4

Test Mode and Error Codes

Front Panel Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Test Mode/Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Test Mode/Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Test Mode/Tx Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Fail Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Exiting Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Section 5

Disassembly & Reassembly For 15 W Models

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Disassemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Remove the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Remove the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Remove the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Disassemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Assemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Assemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Replace the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Replace the Top Cover and Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Section 6

Disassembly & Reassembly For 35 W Models

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Disassemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Remove the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Remove the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Remove the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Disassemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Assemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Assemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Replace the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Replace the Top Cover and Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

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Section 7

Radio Tuning Procedure

Radio Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Starting the Tuning Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Alignment Default Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Tx Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Transmitter Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Transmit Current Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Transmit Deviation Balance (Compensation) & Deviation Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Transmit Deviation Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Ending the Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Section 8

Theory of Operation

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Receiver Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Transmitter Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

15 Watt PA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

35 Watt PA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Power Control Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Power Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Thermal Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Synthesizer Detailed Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Controller Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Voltage Regulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Electronic On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Mechanical On/Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Microprocessor Clock Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

SBEP Serial Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

Microprocessor (Open Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

One-Time Programmable (Flash) Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Electrically Erasable Programmable Memory (EEPROM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Static Random Access Memory (SRAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Controller Audio & Signaling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Audio Signalling Filter IC (ASFIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Audio Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Transmit Audio Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

Mic Input Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

Flat Tx Audio Input Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

PTT Sensing and TX Audio Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

Transmit Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

Sub-audible Data (PL/DPL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

High Speed Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

Dual Tone Multiple Frequency (DTMF) Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

Receive Audio Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

June, 2000 6880905Z99-O iii

Table of Contents Name of Manual

Audio Processing and Digital Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-13

Audio Amplification Speaker (+) Speaker (-). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-13

Handset Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

External Rx Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

Receive Signalling Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

Sub-audible Data (PL/DPL) and High Speed Data Decoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

Alert Tone Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

Accessory Connector Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

Remote Desk Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

Public Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

External Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16

RSSI Buffer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-16

Section 9

Troubleshooting

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Troubleshooting Flow Chart for Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Troubleshooting Flow Chart for Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Troubleshooting Flow Chart for 15 W Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6

Troubleshooting Flow Chart for 35 W Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-7

Troubleshooting Flow Chart for Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8

Troubleshooting Flow Chart for Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9

Schematic Diagrams, Circuit Board Details, and Parts Lists

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Radio Block Diagram Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Receiver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Synthesizer Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Schematic Diagram for HLF9005A & HLF9006A Main Boards, Power Amplifier Section . . . . . . . . . . . . . . . . . .4

Schematic Diagram for HLF9005A & HLF9006A Main Boards, Power Control Section. . . . . . . . . . . . . . . . . . . .5

Schematic Diagram for HLF9007A & HLF9008A Main Boards, Power Amplifier Section . . . . . . . . . . . . . . . . . .6

Schematic Diagram for HLF9007A & HLF9008A Main Boards, Power Control Section. . . . . . . . . . . . . . . . . . . .7

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Controller Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Audio & Digital Controller Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Schematic Diagram for HLF9005, HLF9006A, HLF9007A & HLF9008A Main Board,

Audio PA & I/O Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Schematic Diagram for HLF9005A, HLF9006A, HLF9007A & HLF9008A Main Boards,

Supply Voltage Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Circuit Board Details for HLF9005A & HLF9006A Main Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Parts List for HLF9005A & HLF9006A Main Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Circuit Board Details for HLF9007A & HLF9008A Main Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Parts List for HLF9007A & HLF9008A Main Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Schematic Diagram for FLN8744A Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Circuit Board Details & Parts List for FLN8744A Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

GTX Exploded View & Mechanical Parts List, 35 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

GTX Exploded View & Mechanical Parts List, 15 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

iv 6880905Z99-O June, 2000

GTX LTR / Privacy Plus 800 MHz Mobile Service Manual Foreword

Scope of Manual

Scope of Manual

This manual is intended for use by experienced techni-

cians familiar with similar types of equipment. It con-

tains all service information required for the

equipment described and is current as of the printing

date. Changes which occur after the printing date are

incorporated by service manual revisions. These revi-

sions are added to the manuals as the engineering

changes are incorporated into the equipment.

How to Use This Manual

This manual contains introductory material such as

model charts, accessories, and specifications, as well as

four sections that deal with specific service aspects of

the GTX Mobile Radio. Refer to the Table of Contents

for a general overview of the manual, or to the “Over-

view” paragraphineach section for aspecificoverview

of the information in that section.

Technical Support

To obtain technical support, you may call Motorola’s

Radius Product Services. When you call, we ask that

you have ready the model and serial numbers of the

respective radio or its parts.

Service Policy

If malfunctions occur within 30 days that cannot be

resolved over the phone with Radius Product Services,

a defective major component should be returned. You

must obtain authorization from Radius Product Ser-

vices before returning the component.

order the number of the chassis or kit which contains
the part, and a detailed description of the desired com­ponent. If a Motorola part number is identified on a
parts list, you should be able to order the part through
Motorola Parts. If only a generic part is listed, the part
is not normally available through Motorola. If no parts
list is shown, generally, no user serviceable parts are
available for the kit.

30-Day Warranty
Technical Support
Motorola Product Services

8000 W. Sunrise Blvd.
Plantation, FL 33322

Motorola Radio Support Center

Attention: Warranty Return
3760 South Central Avenue
Rockford, IL 61102 USA
1-800-227-6772 (U.S. & Canada)

Radius Major Component Repair
Motorola Radio Support Center

3760 South Central Avenue
Rockford, IL 61102 USA

Motorola Parts
Worldwide System and
Aftermarket Products Division

Attention: Order Processing
1313 E. Algonquin Road
Schaumburg, IL 60196

Worldwide System and
Aftermarket Products Division

Attention: International Order Processing
1313 E. Algonquin Road
Schaumburg, IL 60196

Ordering Replacement Parts

You can order additional components and some piece

parts directly through your Radius price pages. When

orderingreplacementparts, include the complete iden-

tification number for all chassis, kits, and components.

If you do not know a part number, include with your

June, 2000 6880905Z99-O v

Customer Service

1-800-422-4210
1-847-538-8198 (FAX)

Parts Identification

1-847-538-0021
1-847-538-8194 (FAX)

Foreword GTX LTR / Privacy Plus 800 MHz Mobile Service Manual
Model Charts

Model Charts

Description

LTR / Privacy Plus

GTX

Description

Mobile Radio

GTX Privacy Plus, 800 MHz, 25 kHz, 15 W

GTX LTR, 800 MHz, 25 kHz, 15 W

8

8

Freq..

Model

M11UGD6CB1_N

M11UGD6CU1_N

Item Description

X HUF3025_ Radio, Privacy Plus, 25 kHz, 15 W X

X HUF3027_ Radio, LTR, 25 kHz, 15 W X

X HUF3026_ Unified Chassis, Privacy Plus, 25 kHz, 15 W X

X HUF3028_ Unified Chassis, LTR, 25 kHz, 15 W X
X X HCN3018_ Control Head X
X X HMN3413_ Compact Microphone
X X GLN7317_ Trunnion
X X GKN6270_ Power Cable
X X 6880907Z66 Installation Manual
X X 6880907Z20 GTX LTR User’s Guide (English/French)
X X 6880907Z19 GTX Privacy Plus User’s Guide (English/French)

15 Watts RF Power

800 MHz

Hardware Kit

Item

FLN8529_

Main Board, Privacy Plus, 25 kHz, 15 W

HLF9007_

Main Board, LTR, 25 kHz, 15 W

Control Head Board

HLF9008_

FLN8744_

vi 6880905Z99-O June, 2000

GTX LTR / Privacy Plus 800 MHz Mobile Service Manual Foreword

Model Charts

Description

LTR / Privacy Plus

GTX

Description

Mobile Radio

GTX Privacy Plus, 800 MHz, 25 kHz, 35 W

GTX LTR, 800 MHz, 25 kHz, 35 W

8

8

Freq..

Model

M11URD6CB1_N

M11UGRDCU1_N

Item Description

X HUF3006_ Radio, Privacy Plus, 25 kHz, 35 W X

X HUF3010_ Radio, LTR, 25 kHz, 35 W X

X HUF3008_ Unified Chassis, Privacy Plus, 25 kHz, 35 W X

X HUF3012_ Unified Chassis, LTR, 25 kHz, 35 W X
X X HCN3018_ Control Head X
X X HMN3413_ Compact Microphone
X X HLN9640_ Trunnion
X X HKN4191_ Power Cable
X X 6880907Z66 Installation Manual
X X 6880907Z20 GTX LTR User’s Guide (English/French)
X X 6880907Z19 GTX Privacy Plus User’s Guide (English/French)

35 Watts RF Power

800 MHz

Hardware Kit

Item

HLN9634_

Main Board, Privacy Plus, 25 kHz, 35 W

HLF9005_

Main Board, LTR, 25 kHz, 35 W

Control Head Board

HLF9006_

FLN8744_

June, 2000 6880905Z99-O vii

Foreword GTX LTR / Privacy Plus 800 MHz Mobile Service Manual
Accessories

Accessories

Audio

HMN3413 Compact Microphone
HMN1035_R Heavy Duty Palm Microphone
HMN3013 DTMF Non-Backlit Microphone with Hang-Up Clip
AAREX4617 Handset with Hang-up Clip
HLN9073 Hang-up Clip

Speaker

FSN5510 7.5 W External Speaker

Installation

HLN9640 Trunnion Kit; 30 W/35 W
GLN7317 Trunnion Kit; 12 W/15 W

Cables

HKN4191 Power Cable; 30 W/35 W
GKN7270 Power Cable; 12 W/15 W
GKN6271 Ignition Sense Cable
GKN6272 External Alarm Relay and Cable

Antennas

HAF4002 806-900 MHz, 1/4 Wave Roof Mount
RRA4983 800 MHz, 3 dB Gain Roof Mount w/Teflon Cable
RRA4914 800 MHz, 3 dB Gain Roof Mount

Control Station

RLN4834 Control Station Package; 30 W/35 W
HLN3067 Control Station Package; 12 W/15 W
GLN7318 Base Station Tray
HPN4001 Power Supply and Cable (greater than 25 W)
HPN4002 Power Supply and Cable (less than or equal to 25 W)
HKN9088 Mobile Mini-U Antenna Adapter
HMN3000 Desk Micophone

Manuals/Kits

6880907Z20 GTX LTR User’s Guide (English/French)
6880907Z21 GTX Privacy Plus User’s Guide (English/French)
6880907Z66 Installation Manual
RVN4150 GTX Radio Service Software Kit

viii 6880905Z99-O June, 2000

GTX LTR / Privacy Plus 800 MHz Mobile Service Manual Foreword

Maintenance Specifications

Maintenance Specifications

GENERAL

Frequency: 800 MHz
Model Number: M11URD6CB1_N, M11URD6CU1_N M11UGD6CU1_N, M11UGD6CB1_N
RF Output: 35 W 15 W
RF Output (Talkaround): 20 W 10 W
FCC Description: ABZ99FT3003 AZ492FT5778
Dimensions (H x W x L): 1.73” x 6.61” x 8.62”

Weight: 4.30 lb

Frequency Range *:

Transmit
Talkaround

Receive
Channel Spacing: 25 kHz
Channel Capacity: 10 Trunked Modes / 10 Conventional Channels
Group Capacity: 8 Trunked Talkgroups
Frequency Stability: 2.5 ppm
Input Voltage: 13.6 V dc 13.8 V dc
Temperature Range:

Operating

Storage
Tx Current: 12.0A (35 W) 6.0A (15 W)
* 821 - 825 MHz & 866 - 870 MHz is available outside of the U.S.

(44mm x 168mm x 219mm)

(1.95 kg)

806 – 866 MHz
806 – 821 MHz
851 – 866 MHz
851 – 866 MHz

-30 to +60 °C

-40 to +85 °C

1.73” x 6.61” x 6.67””

(44mm x 168mm x 169mm)

2.67 lb

(1.21 kg)

TRANSMITTER

Power Output: 35 W (806 – 821 MHz)

Channel Spacing: 25 kHz
Maximum Frequency Separation: 15 MHz
Modulation Limiting: 5 kHz
FM Hum & Noise: -40 dB
Conducted / Radiated Emission: -13 dBm
Audio Response (300-3000 Hz): +1 to -3 dB
Audio Distortion: Less than 5 %

20 W (851 – 866 MHz)

RECEIVER

Channel Spacing: 25 kHz
Sensitivity (12dB SINAD): 0.35 µV
Intermodulation: -65 dB
Adjacent Channel Selectivity: -65 dB
Spurious Rejection: -65 dB
Audio Output Power: 4W (internal speaker)

Audio Distortion @ Rated Audio: 5%
Current Drain:

OFF

Standby

Rated

Conducted Spurious Emission: Per FCC part 90

7.5W (external speaker)

30 mA

450 mA

1.5A (4W internal speaker)

1.7A (7.5W external speaker)

15 W (806 – 821 MHz)
10 W (851 – 866 MHz)

June, 2000 6880905Z99-O ix

Foreword GTX LTR / Privacy Plus 800 MHz Mobile Service Manual
Maintenance Specifications

MIL STANDARDS-THE GTX MOBILE RADIO IS DESIGNED TO MEET OR EXCEED MOST REQUIREMENTS
FOR MIL STD 810 C, D, AND E

810C 810D 810E

Applicable MIL-STD:

Low Pressure 500.1 1 500.2 1 500.3 1
High Temperature 501.1 1,2 501.2 1,2 501.3 1,2
Low Temperature 502.1 1 502.2 1,2 502.3 1,2
Temperature Shock 503.1 1 503.2 1 503.3 1
Rain 506.1 2 506.2 2 506.3 2
Humidity 507.1 2 507.2 2 507.3 2
Salt Fog 509.1 1 509.2 1 509.3 1
Dust 510.1 1 510.2 1 510.3 1
Vibration 514.2 8,10 514.3 1 514.4 1
Shock 516.2 1,3,5 516.3 1,5 516.4 1,5
Crash Safety Shock 516.4 5
Packaged Vibration 514.4

Methods Procedures Methods Procedures Methods Procedures

All specifications subject to change without notice.

x 6880905Z99-O June, 2000

GTX LTR / Privacy Plus 800 MHz Mobile Service Manual Foreword

Radio Model Numbering System

Radio Model Numbering System

The model number, serial number, and Motorola FCC designation number are all on a label attached to the back of
your radio.

All GTX LTR and Privacy Plus radio models are synthesized, 8 trunked modes, 10-conventional channel units that
come standard with Tone Private-Line (TPL)/Digital Private-Line (DPL) coded squelch or carrier squelch, which
may be enabled/disabled on a per channel basis. Programming changes can be made by your local dealer.

GTX Privacy Plus

Model Number:

Position:

Position 1 - Type of Unit

M = Mobile

Position 2 & 3 - Model Series

Position 4 - Frequency Band

806-866 MHz

Position 5 - Power Level

35 W

M11URD6CB1AN

123456789101112

Position 9 - Primary System Type

Position 6 - Physical Package

Standard Control with Display

Position 7 - Channel Spacing

25 kHz

Position 8 - Primary Operation

GTX LTR

Unique Model Variations

Position 12 -

Standard Package

Position 11- Version

Version Letter (Alpha) - Major Change

Position 10 - Feature Level

Basic

Privacy Plus®

Trunked Twin Type

Model Number:

Position:

Position 1 - Type of Unit

M = Mobile

Position 2 & 3 - Model Series

Position 4 - Frequency Band

806-866 MHz

Position 5 - Power Level

35 W

June, 2000 6880905Z99-O xi

M11URD6CU1AN

123456789101112

Position 6 - Physical Package

Standard Control with Display

Position 7 - Channel Spacing

25 kHz

Position 8 - Primary Operation

Unique Model Variations

Position 12 -

Standard Package

Position 11- Version

Version Letter (Alpha) - Major Change

Position 10 - Feature Level

Basic

Position 9 - LTR

Trunked Twin Type

Foreword GTX LTR / Privacy Plus 800 MHz Mobile Service Manual
Radio Model Numbering System

GTX Privacy Plus

Model Number:

Position:

Position 1 - Type of Unit

M = Mobile

Position 2 & 3 - Model Series

Position 4 - Frequency Band

806-866 MHz

Position 5 - Power Level

15 W

Model Number:

Position:

M11UGJ6CB1AN

123456789101112

Position 9 - Primary System Type

Position 6 - Physical Package

Standard Control with Display

Position 7 - Channel Spacing

25 kHz

Position 8 - Primary Operation

GTX LTR

M11UGJ6CU1AN

123456789101112

Unique Model Variations

Position 12 -

Standard Package

Position 11- Version

Version Letter (Alpha) - Major Change

Position 10 - Feature Level

Basic

Privacy Plus®

Trunked Twin Type

Position 1 - Type of Unit

M = Mobile

Position 2 & 3 - Model Series

Position 4 - Frequency Band

806-866 MHz

Position 5 - Power Level

15 W

Position 6 - Physical Package

Standard Control with Display

Position 7 - Channel Spacing

25 kHz

Unique Model Variations

Position 12 -

Standard Package

Position 11- Version

Version Letter (Alpha) - Major Change

Position 10 - Feature Level

Basic

Position 9 - LTR

Position 8 - Primary Operation

Trunked Twin Type

xii 6880905Z99-O June, 2000

Section 1

Introduction

Notational Conventions

Throughout the text in this publication, you will notice
the use of warnings, cautions, and notes. These nota­tions are used to emphasize that safety hazards exist,
and care must be taken and observed.

Warning

WARNING

Indicates a potentially hazardous situa­tion which,ifnotavoided, COULD result
in death or serious injury.

Caution

CAUTION

Indicates a potentially hazardous situa­tion which, if not avoided, MAY result in
minor or moderate injury. CAUTION
may also be used to alert against unsafe
practices and property-damage-only
accident hazards.

Note

NOTE

An operational procedure, practice, or
condition, etc., which it is essential to
emphasize.

Safety information

Every radio, when transmitting, radiates energy into
the atmosphere which may, under certain conditions,
causes the generation of a spark.

All users of vehicles fitted with radios should be aware
of the following warnings:

WARNING

• Do not operate the radio near flamma­ble liquids or in the vicinity of explo­sive devices.

• During normal use, the radio will sub­ject you to radio energy substantially
below the level where any kind of
harm is reported.

To ensure personal safety,pleaseobservethefollowing
simple rules:

WARNING

• Do not transmit when the antenna is
very close to, or touching, exposed
parts of the body, especially the face
and eyes.

• Do not hold the transmit (PTT) key in
when not desiring to transmit.

• Check the lawsandregulations on the

Scope of this Manual

This manual includes model/kit information, specifi­cations, disassembly/reassembly procedures, mainte­nance, alignment, troubleshooting, and all theory,
schematic diagrams, printed circuit board details and
parts lists for all parts in the equipment described.

CAUTION

This manual is intended for use by expe-

rienced technicianswhoare familiar with
similar types of equipment.

June, 2000 6880905Z99-O 1-1

use of two-way mobile radios in the
areas where you drive. Always obey
them. Also, when using your radio
while driving, please:

give full attention to driving,
use hands-free operation, if available,

and
pull off the road and park before mak-

ing or answering a call if driving con­ditions so require.

Introduction GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Air Bag Warning

Air Bag Warning

Vehicles equipped with air bags

WARNING

An air bag inflates with great force. Do
not place objects, including communica-

tion equipment, in the area over the air
bag or in the air bag deployment area. If
the communication equipment is
improperly installed and the air bag
inflates, this could cause serious injury.

Installation of vehicle equipment should be performed
by a professional installer/technician qualified in the
requirements for such installations.

An air bag’s size, shape and deployment area can vary
by vehiclemake,modeland front compartment config­uration (e.g., bench seat vs. bucket seats). Contact the
vehicle manufacturer’s corporate headquarters, if nec­essary, for specific air bag information for the vehicle
make, model and front compartment configuration

involved in your communication equipment installa­tion.

LP Gas Warning

WARNING

It is mandatory that radios installed in
vehicles fueled by liquefied petroleum
gas conform to the National Fire Protec­tion Association standard NFPA 58,
which applies to vehicles with a liquid
propane (LP) gas container in the trunk
or other sealed off space within the inte­rior of the vehicle. The NFPA 58 requires
the following:

• Any space containing radio equip­ment shall be isolated by a seal from
the space in which the LP gas con­tainer and its fittings are located.

• Removable (outside) filling connec­tions shall be used.

• The container space shall be vented to
the outside.

1-2 6880905Z99-O June, 2000

Section 2

Basic Maintenance

Introduction

This section of the manual describes preventive main­tenance, safe handling of CMOS devices, and repair
procedures and techniques. Each of these topics pro­vides information vital to the successful operation and
maintenance of your radio.

Preventive Maintenance

The radios do not require a scheduled preventive
maintenance program; however, periodic visual
inspection and cleaning is recommended.

Inspection

Check that the external surfaces of the radios are clean,
and that all external controls and switches are func­tional. A detailed inspection of the interior electronic
circuitry is not needed or desired.

Cleaning

CAUTION

The effects of certain chemical and their
vapors can have harmful results on cer­tain plastics. Aerosol sprays, tuner
cleaners, and other chemicals should be
avoided.

lint-free cloth or tissue should be used to remove the
solution and dry the radio. Make sure that no water
remainsentrappednearthe connectors, cracks, or crev­ices.

Circuit Boards and Components

Isopropyl alcohol may be applied with a stiff, non­metallic, short-bristled brush to dislodge embedded or
caked material located in hard-to-reach areas. The
brush stroke should direct the dislodged material out
and away from the inside of the radio.

CAUTION

Alcohol is a high-wetting liquid and can
carry contamination into unwanted
places if an excessive quantity is used.

Make sure that controls or tunable components are not
soaked with the liquid. Do not use high-pressure air to
hasten the drying process. This could cause the liquid
to puddle and collect in unwanted places. Upon com­pletion of the cleaning process, use a soft, absorbent,
lint-free cloth to dry the area. Do not brush or apply
any isopropyl alcohol to the frame, front cover, or back
cover.

The following procedures describe the recommended
cleaning agents and the methods to be used when
cleaning the external and internal surfaces of the radio.
External surfaces include the front cover, housing and
assembly. These surfaces should be cleaned whenever
a visual inspection reveals the presence of smudges,
grease, and/or grime. Internal surfaces should be
cleaned onlywhenthe radio is disassembledforservic­ing or repair.

The only recommended agent for cleaning the external
radio surfaces is a 0.5% solution of mild dishwashing
detergent in water.Theonly factory recommended liq­uid for cleaning the printed circuits boards and their
components is isopropyl alcohol (70% by volume).

Plastic Surfaces

The detergent solution should be applied sparingly
with a stiff non-metallic, short-bristled brush to work
all loose dirt away from the radio. A soft, absorbent,

June, 2000 6880905Z99-O 2-1

Safe Handling of CMOS Devices

Complementary metal-oxide semiconductor (CMOS)
devices are used in this family of radios. While the
attributes of CMOS are many, their characteristics
make them susceptible to damage by electrostatic or
high voltage charges. Damage can be latent, resulting
in failures occurring weeks or months later. Therefore,
special precautions must be taken to prevent device
damage during disassembly, troubleshooting, and
repair. Handling precautions are mandatory for CMOS
circuits and are especially important in low humidity
conditions.

Always use a fresh supply of isopropyl
alcohol and a clean container to prevent
contamination by dissolved material
from previous usage.

NOTE

Basic Maintenance GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Repair Procedures and Techniques

CAUTION

Do not attempt to disassemble the radio
without observing the following han­dling precautions.

Precautions

1. Eliminate static generators (plastics, stryo­foam, etc. in the work area.

2. Remove nylon or double-knit polyester jack­ets, roll up long sleeves, and remove or tie
back loose hanging neckties.

3. Store and transport all static-sensitive devices
in ESD-protective containers.

4. If at all possible, handle CMOS devices by the
package and not by the leads. Prior to touch­ing the unit, touch an electrical ground to
remove any static charge that you may have
accumulated. The package and substrate may
be electrically common. If so, the reaction of a
discharge to the case would cause the same
damage as touching the leads.

5. Disconnect all power from the unit before
ESD-sensitive components are removed or
inserted unless otherwise noted.

6. Use a static safeguarded workstation, which
can be accomplished through the use of an
anti-static kit (Motorola part number
0180386A82). This kit includes a wrist strap,
two ground cords, a static-control table mat
and a static-control floor mat. For additional
information, refer to Service and Repair Note
SRN F1052, “Static Control Equipment for
Servicing ESD Sensitive Products”, available
form Motorola Literature Distribution 2290
Hammond Drive Schaumburg, IL 60173 (847)
576-2826.

When these items are not readily available,
observing the following techniques will mini­mize chance of damage.

9. When soldering, use a grounded soldering
iron.

Repair Procedures and Techniques

The radio support center is at the following address:
Motorola Radio Support Center

3651 South Central Avenue
Rockford, Ill, 61102
Telephone: [phone]
[phone]

Refer to the Disassembly and Reassembly section of
the manual forpertinentinformationprior to replacing
and substituting parts.

Parts Replacement

Special care should be taken to be as certain as possible
that a suspected component is actually the one at fault.
This special care will eliminate unnecessary unsolder­ing and removal of parts, which could damage or
weaken other components or the printed circuit board
itself.

When damaged parts are replaced, identical parts
should be used. If the identical replacement compo­nent is not locally available, check the parts list for the
proper Motorola part number and order the compo­nent from the nearest Motorola Communications Parts
office.

Rigid Circuit Boards

This family of radios uses bonded, multi-layer,printed
circuit boards. Since the inner layers are not accessible,
some special considerations are required when solder­ing andunsolderingcomponents.The printed-through
holes may interconnect multiple layers of the printed
circuit.

CAUTION

Therefore, care should be exercised to
avoid pulling the plated circuit out of
the hole.

• If a static-sensitive device is to be temporarily
set down, use a conductive surface for place­ment of the device.

• Make skin contact with a conductive work sur­face first and maintain this contact when the
device is set down or picked up.

7. Always wear a conductive strip when servic-

ing this equipment. The Motorola part num­ber for a replacement wrist strap that connects
to the table mat is 42-80385A59.

8. When straightening CMOS pins, provide

ground straps for apparatus used.

2-2 6880905Z99-O June, 2000

When soldering near the 16 or 18-pin connector, use
care to avoid accidentally getting solder in the connec­tor.

CAUTION

Be careful not to form solder bridges
between the connector pins. Closely
examine your work for shorts due to
solder bridges.

Chip Components

Use either the RLN4062 Hot-Air Repair Station or the
Motorola 0180381B45 Repair Station for chip compo-

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual BasicMaintenance

Repair Procedures and Techniques

nent replacement. When using the 0180381B45 Repair
Station, select the TJ-65 mini-thermojet hand piece. On
either unit, adjust the temperature control to 700˚ F
(370˚ C), and adjust the airflow to a minimum setting.
Airflow can vary due to component density.

Chip Component Removal

To remove a chip component, select a hot-air hand
piece and positionthenozzleof the hand piece approx­imately 1/8” above the component to be removed.
Begin applying the hot air. Once the solder reflows,
remove the component using a pair of tweezers. Using
solder wick and a soldering iron or a power desolder­ing station, remove the excess solder from the pads.

Chip Component Replacement

To replace a chip component using a soldering iron,

select the appropriate micro-tipped soldering iron and
apply fresh solder to one of the solder pads. Using a
pair of tweezers, position the new chip component in
place while heating the fresh solder.Once solder wicks
onto thenewcomponent, remove the heatfromthe sol­der. Heat the remaining pad with the soldering iron
and apply solder until it wicks to the component. If
necessary, touch up the first side. All solder joints
should be smooth and shiny.

To replace a chip component using hot air, select the
hot-air hand piece and reflow the solder on the solder
pads to smooth it. Apply a drop of solder paste flux to
each pad. Using a pair of tweezers, position the new
component in place. Position the hot-air hand piece
approximately 1/8” above the component and begin
applying heat. Once the solder wicks to the compo­nent, remove the heat and inspect the repair. All joints
should be smooth and shiny.

Over-Molded Pad-Array Carrier (OMPAC)

ASFIC U201 is an OMPAC. It must be kept in a sealed
bag with dessicant in the bag (in a “dry box” as sup­plied by the Motorola Parts Department prior to use. If
the OMPAC is ambient for an unknown amount of
time or for more than 96 hours, then it must be baked
for at least eight hours at 260˚ F (185˚ C).

If neighboring OMPAC components are heated above
365˚ F (185˚ C), they will suffer die-bond delamination
and possible “popcorn” failure.

During all repair procedures, heating neighboring
components can be minimized by:

• Using upper heat only. using the correct size
heat-focus head, approximatelythesamesizeas
the carrier being replaced.

• Keeping the heat-focus head approximately 1/
8” (0.3cm) above the printed circuit board when
removing or replacing the device.

OMPAC Removal

To remove the OMPAC, select the R-1070A Air-Flow
Station and the appropriate heat- focus head (approxi­mately the same size as the OMPAC. Attach the heat­focus head to the chimney heater. Adjust the tempera­ture control to approximately 415˚ F (215˚ C) 445˚ F
(230˚ C) maximum. Adjust the airflow slightly above
the minimum setting. Apply the solder paste flux
around the edge of the OMPAC. Place the circuit board
in the R-1070A's circuit board holder, and position the
OMPAC under the heat-focus head.Lowerthe vacuum
tip and attach it to the OMPAC by turning on the vac­uum pump. Lower the heat-focus head until it is
approximately 1/8” (0.3cm) above the carrier. Turn on
the heaterandwaituntil the OMPAC liftsoffthe circuit
board. Once the part is off, grab it with a pair of twee­zers andturnoff the vacuumpump.Remove the circuit
board from the R-1070A's circuit board holder.

OMPAC Replacement

To replace the OMPAC, the solder pads on the board
must first be cleaned of all solder to ensure alignment
of the new chip carrier. Prepare the sight by using sol­der wick and asolderingiron to removeallsolderfrom
the solder pads on the circuit board. If a power desol­dering toolisavailable, it canbeused instead of thesol­der wick. Clean the solder pads with alcohol and a
small brush. Dry and inspect. Ensure that all solder is
removed.

Once the preparation is complete, place the circuit
board back in the R-1070A's circuit board holder. Add
solder paste flux in the trench of the flux block and
spread it using a one-inch putty knife. Flux the
OMPAC by placing it in the trench of the flux block.
Once the flux is applied, place the OMPAC on the cir­cuit board, making certain that it is oriented correctly
on the board. Position the heat-focus head over the
OMPAC and lower it to approximately 1/8” (0.3cm)
over the carrier. Using the same heat and airflow set­ting used to remove the OMPAC, turn on the heater
and wait for the carrier to reflow (heating and reflow
should take longer than 60 seconds).

Once the carrier reflows, raise the heat-focus head and
wait approximately one minute for the part to cool.
Remove the circuit board and inspect the repair. No
cleaning should be necessary.

Shields

Removing and replacing the shields will be done with
the R-1070A, using the same heat and airflow profile
used to remove and replace OMPAC components.

Shield Removal

Place the circuit board in the R-1070A's holder. Select
the proper heat focus head and attach it to the heater

June, 2000 6880905Z99-O 2-3

Basic Maintenance GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Repair Procedures and Techniques

chimney. Add solder paste flux around the base of the
shield. Position the shield under the heat-focus head.
Lower the vacuum tip and attach it to the shield by
turning on the vacuum pump. Lower the focus head
until it is approximately 1/8”(0.3cm) above the shield.
Turn on the heater and wait until the shield lifts off the
circuit board. Once the shield is off, turn off the heat,
grab the part with a pair of tweezers, and turn off the
vacuum pump. Remove the circuit board from the R­1070A's circuit board holder.

Shield Replacement

To replace the shield, add solder to the shield if neces­sary, using a micro-tipped soldering iron. Next, rubthe
soldering iron tip along the edge of the shield to
smooth out any excess solder. Use solder wick and a
soldering iron to remove excess solder from the solder
pads on the circuit board. Place the circuit board back
in the R-1070A's circuit board holder. Place the shield
on the circuit board using a pair of tweezers. Position
the heat-focus head over the shield and lower it to
approximately 1/8” above the s hield. Turn on the
heater and wait for the solder to reflow.

Once complete, turn off the heat, raise the heatfocus
head, and wait approximately one minute for the part
to cool. Remove the circuit board and inspect the
repair. No cleaning should be necessary.

Replacement of Transistor Q6505

This section provides a replacement procedure for
Q6505, the RF power output transistor in the 35-Watt
power amplifier.

To replace Q6505, proceed as follows:

• Thermal compound, Motorola Part No.
1180382B13.

• Transistor assembley tool 0293.

1. Remove main board from radio chassis fol-

lowing procedure provided in Section 6 of this
service manual, Motorola Publication
6880905Z99.

2. After main board is removed from radio chas-

sis, clean off thermal paste from all surfaces
that have thermal paste on them using low
lint wipers.

Removing Faulty Transistor

1. Before removing faulty transistor, observe

carefully how flange capacitors C6567 and
C6568 are mounted. This will help you later in
mounting new capacitors.

2. Set hot air gun for medium temperature and

low air speed. This will ensure that other com­ponents in vicinity of Q6505 will not get dis­lodged and moved accidently.

3. Train hot air gun on flanges of transistor. After

a few moments, the solder holding flanges
will reflow enabling transistor and flange
capacitors C6567 and C6568 to be lifted off
main board together.

Preparing Main Board for New Transistor

1. Using solder wick, isopropyl alcohol, and stiff

bristle brush, remove excess solder and clean
pads on main board where transistor was sol­dered.

Before proceeding, ensure that the following tools and
materials are on hand:

• Alcohol (isopropyl).

• High temperature solder, SN96AG04 composi­tion. Motorola Part No. 1180433L04.

• Hot air gun (600 degrees maximum tempera­ture).

• Low lint wipers.

• Soldering station including a soldering iron
with chisel-style tip which is approximately 1/
8-inch in size.

• Solder flux.

• Solder wick.

• Stiff brush, natural bristles approximately 1-cm
high and 1-cm wide.

2-4 6880905Z99-O June, 2000

2. Place main board, with its heavy side up, on
transistor assembly tool. Heavy side is side
with PA module and antenna connector.Make
certain that all guide pins on transistor assem­bly tool are engaged into their corresponding
holes in main board.

3. Identify the six pads on main board corre­sponding to the six flanges on transistor. The
four corner pads are ground; the middle pad
towards antenna connector is the transistor
collector; and the opposite middle pad is the
transistor emitter.

NOTE

In next step, be certain to tin transistor
pads and fill via holes with high temper­ature solder, composition SN96PB04.

4. Using solder iron, carefully tin each of the six
pads so that they are covered with a thin coat
of solder and all via holes are filled.

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual BasicMaintenance

Repair Procedures and Techniques

Positioning New Transistor

1. Place a small spot of flux on each of the six
main-board pads to which the flanges of tran­sistor are to be soldered.

2. Insert the narrow-diameter side of a spacer,
Motorola Part Number 4380545K01, into each
of the two transistor mounting holes in main
board.

3. Ensure that new transistor is correct replace­ment type by verifying that M25C17 is printed
on transistor face.

NOTE

Collector flange of transistor is the one
with its corner cut off.

4. Position new transistor onto transceiver board
with collector flange oriented towards
antenna connector. Ensure that transistor is
sitting snug on main board with all six flanges
flat on their corresponding main-board pads.

5. Lower arm of Distaco clamp on transistor
assembly tool. Then lock clamp with its lever
to clamp transistor in place on main board.

Soldering Transistor

1. Place a small spot of flux on each of the six
transistor flanges.

2. Solder each transistor flange to transceiver
board as follows:

2A. Set soldering iron temperature to approxi-

mately 400 degrees Centigrade.

2B. Melt a small mound of solder onto flat face

of soldering iron.

CAUTION

In next step, to avoid damage to transis­tor and capacitors, ensure that each sol­dering operation takes no more than
three to four seconds to accomplish.

3. Press face of soldering iron firmly to flange for
no more than three to four seconds.

Installing Flange Capacitors C6567 and C6568.

NOTE

Capacitors C6567 and C6568 get
mounted flat on transistor collector and
ground flangeswithnon-solderable edge
flush against transistor body. Each capac­itor is attached by soldering its outside
solderable edge to one of the transistor
ground flanges and its inside solderable
edge to transistor collector flange. There
must be a gap of approximately 2 milli­meters between the two capacitors (i.e.,
room to insert a chisel style solder iron
tip) to ensure that good solder joints can
be made between capacitor leads and
collector flange of transistor.

1. Ensure that both capacitors C6567 and C6568
are correct replacement type by verifying that
Motorola Part Number is 2113742B25, value is
18pF, and marking is Gl.

CAUTION

In next two steps, to avoid damage to
transistor and capacitors, ensure that
soldering operations take no more than
three to four seconds to accomplish.

2. Solder outside solderable edge of each capaci­tor to one transistor ground flange, being cer­tain that each capacitor is flat on transistor
flange with non-solderable edge flush against
transistor body.

3. Place a small drop of flux on transistor collec­tor flange between capacitors. Place chisel
style solder iron tip between capacitors and
onto collector flange of transistor. Feed in
some high temperature solder (SN96PB04) so
that inside solderable edges of both capacitors
are soldered securely to collector flange of
transistor.

4. Examine soldered capacitors. Ensure that they
are reasonably flush against transistor body
and are not shorting transistor collector flange
to transistor heat sink.

5. Examine surrounding components to ensure
that none of them have been damaged or dis­placed.

Reassembly of Radio

4. Inspect transistor flange carefully to ensure it
is soldered securely, and that it is not shorted
to any of the other flanges or to the transistor
heat sink.

June, 2000 6880905Z99-O 2-5

1. Examine face of transistor heat sink. Ensure
that it is free from burrs and flux, which could
prevent a good thermal contact to radio chas­sis.

Basic Maintenance GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Repair Procedures and Techniques

2. Spread thermal compound on heat sink of the
following components:

• Transistor Q6505

• PA module U6501

• Audio PA module U401

• +9.3V voltage regulator U601

3. Install transceiver board into radio chassis fol­lowing procedure provided in Section 6 of
this service manual, Motorola Publication
6880905Z99.

2-6 6880905Z99-O June, 2000

Section 3

Test Equipment,

Service Aids, and Tools

Test Equipment

The list in Table 3-1 includes all standard test equipment required for servicing two-way mobile radios. Battery­operated test equipment is recommended when available. The “Characteristics” column is included so that equiv­alent equipment may be substituted; however, when no information is provided in this column, the specific Motor­ola model listed is either a unique item or no substitution is recommended.

Table 3-1. Recommended Test Equipment

Model No. Description Characteristics Application

R2000 Series
with trunking
option

R1053 Dual Trace

FLUKE 8012 Digital Multimeter AC/DC voltage and current meter

T1013A Load resistor 0-1000MHz, 300 W For use with wattmeter

S1339A RF Millivolt Meter

R1011B DC Power Supply 0-40Vdc, 30 Amps Bench supply for 13.8Vdc current

Communications
System Analyzer

Oscilloscope

10kHz to 1.2 GHz

Frequency/deviation meter and
signal generator for wide-range
troubleshooting and alignment

200 MHz bandwidth,
5 mV/cm-20Mv/cm

100 V to 3V rf RF level measurements

For waveform measurements

limited

June, 2000 6880905Z99-O 3-1

Test Equipment, Service Aids, and Tools GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Field Programming

Field Programming

The radio can be aligned and programmed in the field. This requires specific equipment and special instructions.
Refer to the Radio Service Software User’s Manual for complete field programming information.

Table 3-2. Service Aids

Part No. Description Application

RLN4008B Radio Interface Box Enables communications between the radio and the

computer’s serial communications adapter.

EPN4040A Power Supply Used to supply power to the RIB (240 VAC).

0180358A56 Power Supply Used to supply power to the RIB (220 VAC).

0180357A57 110V AC-to-DC Adapter Used to supply power to the RIB (110 VAC).

3080070N01 Combined Interface Cable Connects radio to RLN4008B RIB.

GKN6270A 15 W Power Cable for

radio

HKN4191B 35 W Power Cable for

radio

3080369B72 Computer Interface Cable Connects the computer’s serial communications

3080369B71 Computer Interface Cable Connects the computer’s serial communications

RLN4438A Adapter 25 pin (F) to 9 pin (M) adapter,for use with 3080369B72

RVN4150 Radio Service Software

(RSS)

68P02948C70 GTX (RSS) Radio Service

Software Manual

RLN4460A Test Fixture For radio testing

3008566C12 Test Cable For connecting between the radio and RLN4460A.

Interconnects radio to power supply.

Interconnects radio to power supply.

adapter (9 pin) to the RIB.

adapter
(25 pin) to the RIB.

for AT applications.

For GTX radio programming.

Provides detailed instruction on RSS used in GTX
radios.

3-2 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Test Equipment, Service Aids, and Tools

Service Tools

Service Tools

The following table lists the tools recommended for working on the radio; these are also available from Motorola.
Note that the R-1070A workstation requires the use of a specific “heat focus head” for each of the components on
which this item is used. Each of these heat focus heads must be ordered separately.

Table 3-3. Service Tools

Part No. Description Application

0180381B45 110 VAC
or
0180300E06 220 VAC

8180369E97 Flux holder/applicator Allows for the properamountof flux to be applied

1105139W02 30cc plastic syringe and

0180386A81 Miniaturedigital read-out

0180386A78 Illuminated magnifying

0180386A82 Anti-static grounding kit Used during all radio assembly and disassembly

6684253C72 Straight prober

6680384A98 Brush

MBT250 Surface-mount/
through-hole repair sta­tion

flux paste

soldering station (in­cludes 1/64” micropoint
tip)

glass with lens attach­ment

Temperature-controlled, self-contained soldering/
desoldering repair station for installation and re­moval of surface-mounted devices.

to pad grid arrays for repair.

For use with flux holder/applicator 8180369E97.

procedures

1010041A86 Solder (RMA type),

63/37, 0.020” diameter, 1
lb. spool

R-1070A
(superseded by R1319A)

R1319A
(supersedes R-1070A)
6680332E82
6680332E83
6680332E84
6680333E28

0293 Transmitter Assembly

June, 2000 6880905Z99-O 3-3

Shields and surface­mounted component - IC
removal/rework station

Surface-Mounted Device
Rework Station
R1319A Reflow Nozzle
R1319A Reflow Nozzle
R1319A Reflow Nozzle
R1319A Reflow Nozzle

Tool

Removal of surface-mounted integrated circuits

Removal of surface-mounted integrated circuits
For IC removal (approximate size 0.8 in. x 0.8 in.)

For IC removal (approximate size 0.6 in. x 0.6 in.)
For IC removal (approximate size 0.5 in. x 0.5 in.)
For removal of RF PA

Replacement for transisator Q6505

Test Equipment, Service Aids, and Tools GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Service Tools

3-4 6880905Z99-O June, 2000

Section 4

Test Mode

and Error Codes

Front Panel Test Mode

The functions of the radio controls for the Front Panel
Test Mode are as follows:

Test Mode/Entry

Test Mode allows radio checks to be performed in the
field. To provide a level of protection to the Test Mode
entry, proceed according to the following sequence:

1. Place radio in TRUNKING operation mode
and wait for 6 seconds. (See Quick Start card
for instructions on how to enter that mode.)

2. Turn radio off.

3. Verify that RIB is off.

4. Turn radio power supply (13.6 V DC) on for
35 W model or (13.8 V DC) for 15 W model.

5. Turn radio on.

The radio enters Test Mode operation:

Table 4-1. Test Mode/Channel Selection

Channel Number Rx Frequency Tx Frequency Display

1 851.0125 MHz 806.0125 MHz “M 1” (2)
2 869.9875 MHz 824.9875 MHz “M 2” (2)
3 860.5125 MHz 815.5125 MHz “M 3” (2)
4 CC1 (1) CC1-45 MHz “M 4” (2)
5 CC2 (1) CC2-45 MHz “M 5” (2)
6 CC3 (1) CC3-45 MHz “M 6” (2)
7 CC4 (1) CC4-45 MHz “M 7” (2)

1. CC1-CC4 are control channels programmed in association with the selected trunking system.

2. M stands for modulation type (0-3). See Table 4-2.

• Speaker unmutes.

• One beep is heard to indicate operation on the
first test frequency (default).

• Display shows "4 1" .

CHANNEL

MODE (4 IS INITIAL MODE)

Test Mode/Channel Selection

Use the PTT switch for channel selection. A short press
and de-pressonthePTTswitch (button-like push) will
advance the radio to the next channel (cyclical) . Seven
channels are available during test mode, as shown in
the table below.

Test Mode/Tx Modulation

Use PTT switch for modulation type selection. A con­tinuous press will advance the radio to the next modu­lation test (cyclic scroll ) and perform Tx test until PTT
is released. The modulation selection is described in
the table below.

Table 4-2. Test Mode / Tx Modulation

Modulation Type Internal Speaker Audio Signaling Internal Microphone Status Display

CSQ None On “0 C” (1)

Low Speed Busy Channel On “1 C” (1)

High Speed Call Back Off “2 C” (1)

DTMF “#” DTMF “#” Off “3 C” (1)

1. C stands for the selected channel (1-7). See Table 4-1.

June, 2000 6880905Z99-O 4-1

Test Mode and Error Codes GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Front Panel Test Mode

Fail Mode

The radio will enter Fail Mode upon detecting one of
the following errors:

• Application startup self check error

• Codeplug information check error

There aretwocategoriesoferrors:critical and non-crit­ical. Critical errors will stop radio normal operation.

Table 4-3. Fail Mode

Error number Failure Description Display Critical Tone Sound

1 Internal RAM F 01 Yes Illegal tone
2 External RAM F 02 Yes Illegal tone
5 OTP checksum F 05 Yes Illegal tone
6 Codeplug checksum E 06 Yes Illegal tone

7 (1) Codeplug personality 1. E 06 No Illegal Tone (when selected

8 Codeplug tuning error E 06 Yes Ilegal tone

1. For error no. 7, personality (system) change is allowed although the illegal tone is heard. For error no. 8 the
temporary illegal tone is heard. (See the Quick Start card for instructions on how to change personality.) To exit
fail mode, power radio off.

2. Non-critical errors will be temporarily indicated as described in Table 4-2.

Exiting Test Mode

To exit Test Mode, proceed as follows:

• Turn radio off.

• Turn RIB on.

• Turn radio on.

personality has checksum error)

4-2 6880905Z99-O June, 2000

Introduction

This chapter explains,stepbystep, how to disassemble
and assemble the radio, to board level.

Disassemble the Radio

Remove the Control Head

1. Turn the radio upside down.

2. Insert a small flat blade screw driver, or simi­lar, in the recess between the control head and
the chassis. Refer to Figure 5-1.

3. Press until the side of the control head
releases.

Section 5

Disassembly & Reassembly

For 15 W Models

4. Pull the control head away from the radio.

5. Remove the speaker pad and flat cable from
the connector on the radio side. Refer to
Figure 5-2 and Figure 5-6.

CONTROL HEAD

RECESS

Figure 5-1. Control Head Removal

Remove the Top Cover

1. Turn the radio upside down.

Figure 5-2. Flat Cable Removal

SIDE RECESS

2. Insert a small flat bladed screw driver in the side
recesses between the cover and the chassis.

3. Tilt the cover until the side snaps off the latch.

4. Repeat the operation on the opposite side of
the radio.

June, 2000 6880905Z99-O 5-1

Figure 5-3. Top Cover Removal

5. Turn the radio right side up.

6. Lift the top cover over the chassis.

Disassembly & Reassembly For 15 W Models GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Disassemble the Radio

Remove the Main Board

1. Remove the 3 screws of the PA shield using a
T8 TORX driver. Remove the PA shield by
gently prying up each corner of the shield.

2. Remove the power and antenna connector
retaining clips by inserting a small flat blade
screw driver between the clip and the top of
the chassis wall and gently prying the clip
upwards.

3. Pull out the accessory clamp and connector
gasket.

4. Pull out the accessory kit.

5. Remove the 8 screws securing the main board
to the chassis.

6. Carefully remove the main board by rotating
it out of the chassis.

CLIPS

SHIELD

7. Slowly lift the board on the front edge, the
side with the connector that mates with the
control head, and pull gently toward the front
of the radio.

CAUTION

The thermal grease can act as an adhe­sive and cause the leads of the heat dis­sipating devices to be over stressed if
the board is lifted too quickly.

Disassemble the Control Head

1. To pull out the circuit board from the control
head housing, insert a small bladed screw
driver in the side groove near the four pro-

SPEAKER

Figure 5-4. Main Board Removal

truding tabs. Remove the board from the con­trol head housing.

2. Disconnect the speaker from the board by
removing it from the socket.

3. Remove the keypad from the control head
housing by lifting it up from the board. Care
should be taken not to touch or get other con­taminates on the conductive pads on the
under side of the keypad or conductive con­tacts on the printed circuit board.

4. Take the LCD frame out of the control head.

HOUSING

PART OF LCD FRAME

VOLUME KNOB

TAB

FLAT CABLE

LCD FRAME

ZEBRA CONNECTOR

KEYPAD

POTENTIOMETER

Figure 5-5. Control Head Removal

5-2 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Disassembly & Reassembly For 15 W Models

Assemble the Radio

Assemble the Radio

Assemble the Control Head

1. Insert the LCD frame with LCD and Zebra
connectors into its place.

2. Place the keypad onto the board assembly,
making sure the keypad is flush with the
board.

3. Rotate the potentiometer counterclockwise.
Rotate the volume knob counterclockwise.
This will allow you to insert the potentiometer
smoothly into its place in the volume knob.

4. Make sure the speaker including the gasket is
well positioned into the pocket of the hous­ing..

5. Connect the speaker to the circuit board.

6. During the installation of the circuit board,
ensure the four protruding tabs snap into the
recesses.

Replace the Main Board

1. Inspect and if necessary, reapply thermal
grease to the heatsinking pads in the chassis.

2. Rotate the main board into the chassis and
ensure that the board is flush to the chassis.

3. Install the 8 screws with 0.4 -07 NM (4-6 in
lbs) of torque using a T8 TORX driver.

4. Before installing the connector retaining clips,
ensure that the board is sitting flush on the
chassis mounting surface.

5. Install the PA shield and secure it with 3
screws.

Replace the Top Cover and Control Head

1. Position the top cover over the chassis and
replace. Ensure that the chassis crosses snap
into the cover’s openings.

2. Connect the flat cable to the connector on the
radio.

3. Assemble the speaker pad by sliding the slit of
the pad over the flat cable. Refer to Figure 5-6.

4. Push the speaker pad onto the chassis.

5. Press the control head onto the chassis until
the protruding taps on the chassis snap into
the recesses inside the housing.

Figure 5-6.

June, 2000 6880905Z99-O 5-3

Disassembly & Reassembly For 15 W Models GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Assemble the Radio

5-4 6880905Z99-O June, 2000

Introduction

This chapter explains,stepbystep, how to disassemble
and assemble the radio, to board level.

Disassemble the Radio

Remove the Control Head

1. Turn the radio upside down.

2. Insert a small flat blade screw driver, or simi­lar, in the recess between the control head and
the chassis. Refer to Figure 6-1.

3. Press until the side of the control head
releases.

4. Pull the control head away from the radio.

Section 6

Disassembly & Reassembly

For 35 W Models

Figure 6-2. Flat Cable Removal

5. Remove the speaker pad and flat cable from
the connector on the radio side. Refer to
Figure 6-2 and Figure 6-7.

CONTROL HEAD

RECESS

Figure 6-1. Control Head Removal

Remove the Top Cover

1. Turn the radio upside down.

2. Insert a small flat bladed screw driver in the side
recesses between the cover and the chassis.

SIDE RECESS

Figure 6-3. Top Cover Removal

3. Tilt the cover until the side snaps off the latch.

4. Repeat the operation on the opposite side of
the radio.

July, 2000 6880905Z99-O 6-1

5. Turn the radio right side up.

6. Lift the top cover over the chassis.

Disassembly & Reassembly For 35 W Models GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Disassemble the Radio

Remove the Main Board

1. Remove the 4 screws of the PA shield using a
T8 TORX driver.

SHIELD

CAUTION

The PA shield has sharp edges. Handle
with care when removing and replacing.

2. Remove the PA shield as follows:

2A. Hold the shield handle with your index and

middle fingers while pressing your thumb
downward on the shield. Keep all fingers
curled upward as shown in Figure 6-4.

CLIP

Figure 6-5. Main Board Removal

8. Carefully remove the main board by rotating
it out of the chassis.

9. Slowly lift the board on the front edge, the
side with the connector that mates with the
control head, and pull gently toward the front
of the radio.

Figure 6-4. Shield Removal

2B. Keeping the other hand away from the PA

shield, place your thumb on top of the front
of the radio while placing your fingers
underneath the chassis. Refer to Figure 6-4.
Make sure this hand is away from the PA
shield.

2C. Holding the chassis firmly, remove the PA

shield by pulling upward on the handle.

3. Remove the antenna connector retaining clip
by inserting a small flat bladed screw driver
between the clip and the top of the chassis
wall and gently prying the clip upwards.

4. Pull out the accessory clamp and connector
gasket.

5. Pull out the accessory kit.

6. Twist the sleeve of the power cable 90 degrees
and lift up and out from the chassis.

7. Remove the 14 screws securing the main
board to the chassis.

CAUTION

The thermal grease can act as an adhe­sive and cause the leads of the heat dis­sipating devices to be over stressed if
the board is lifted too quickly.

Disassemble the Control Head

1. To pull out the circuit board from the control
head housing, by inserting a small bladed
screw driver in the side groove near the four
protruding tabs. Remove the board from the
control head housing.

2. Disconnect the speaker from the board by
removing it from the socket.

3. Remove the keypad from the control head
housing by lifting it up from the board. Care
should be taken not to touch or get other con­taminates on the conductive pads on the
under side of the keypad or conductive con­tacts on the printed circuit board.

4. Take the LCD frame out of the control head.

6-2 6880905Z99-O July, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Disassembly & Reassembly For 35 W Models

Assemble the Radio

HOUSING

PART OF LCD FRAME

SPEAKER

FLAT CABLE

Figure 6-6. Control Head Removal

Assemble the Radio

Assemble the Control Head

1. Insert the LCD frame with LCD and Zebra
connectors into its place.

2. Place the keypad onto the board assembly,
making sure the keypad is flush with the
board.

3. Rotate the potentiometer counterclockwise.
Rotate the volume knob counterclockwise.
This will allow you to insert the potentiometer
smoothly into its place in the volume knob.

POTENTIOMETER

VOLUME KNOB

LCD FRAME

ZEBRA CONNECTOR

KEYPAD

TAB

Replace the Top Cover and Control Head

1. Position the top cover over the chassis and
replace. Ensure that the chassis crosses snap
into the cover’s openings.

2. Connect the flat cable to the connector on the
radio.

3. Assemble the speaker pad by sliding the slit of
the pad over the flat cable. Refer to Figure 6-7.

4. Push the speaker pad onto the chassis.

4. Make sure the speaker is well positioned into
the pocket of the housing.

5. Connect the speaker to the circuit board.

5. Press the control head onto the chassis until
the protruding taps on the chassis snap into
the recesses inside the housing.

6. During the installation of the circuit board,
ensure the four protruding tabs snap into the
recesses.

Replace the Main Board

1. Inspect and if necessary, reapply thermal
grease to the heatsinking pads in the chassis.

2. Rotate the main board into the chassis and
ensure that the board is flush to the chassis.

3. Install the 14 screws with 0.4 -07 NM
(4-6 in/lbs) of torque using a T8 TORX driver.

4. Before installing the connector retaining clip
and power cable, ensure that the board is sit­ting flush on the chassis mounting surface.

5. Install the PA shield and secure it with the 4
screws.

July, 2000 6880905Z99-O 6-3

Figure 6-7.

Disassembly & Reassembly For 35 W Models GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Assemble the Radio

6-4 6880905Z99-O July, 2000

Section 7

Radio Tuning Procedure

Radio Tuning Procedure

General

An IBM PC (personal computer) and RSS (Radio Ser­vice Software) are required to align the radio. Refer to
the applicable RSS Manual for installation and setup
procedures for the software.

To perform the alignment procedures, the radio must
be connected to the PC, RIB (Radio Interface Box), and
Test Set as shown in Figure 7-1.

Service Menu

Figure 7-2 illustrates the Main Service Menu structure.
All SERVICEscreens read and programtheradiocode-

BNC

Mini-U BNC
58-80348B33

plug directly; you do NOT have to use the RSS GET/
SAVE functions to program new tuning values.

CAUTION

Do NOT switch radios in the middle of
any SERVICE procedure. Always use the
EXIT key to return to the MAIN menu
screen before disconnecting the radio.
Improper exits from the SERVICE
screens may leave the radio in an
improperly configuredstateandresult in
seriously degraded radio or system per­formance.

The SERVICE screens use the concept of the “Softpot”,
an analog SOFTware controlled POTentiometer used
for adjusting all transceiver alignment controls.

30 dB PAD

TRANSMIT

30 dB PAD

RF GENERATOR

RECEIVE

SERVICE MONITOR
or COUNTER

WATTMETER

MIC IN

PROGRAM or
TEST CABLE
3080070N01

RADIO

TEST CABLE
3008566C12

Note: Battery can be used in RIB
making power supply optional.

RIB

RLN4008B

RIB POWER SUPPLY
0180357A57, 110 V, USA
0180358A56, 110 V, USA

AUDIO IN

TEST SET

RLN4460A

15-PIN25-PIN

COMPUTER INTERFACE CABLE
30-80369B72 (IBM AT, 9-PIN ONLY)
30-80369B71 (IBM XT, 25-PIN ONLY)

DATA

GND

TX

AUDIO GENERATOR

RX

SINAD METER

AC VOLTMETER

COMPUTER

Figure 7-1. Radio Alignment Test Setup

June, 2000 6880905Z99-O 7-1

Radio Tuning Procedure GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Tuning Procedure

Service

Menu

F6F2

Alignment

Menu

F3 Deviation Adjustment
F5 Reference Oscillator Warp
F7 Transmitter Power
F8 Squelch Adjustment

F2 Logic or RF Board Replacement

F3 Tx Power
F4 Warp Reference Frequency
F5 Tx Power Calibration
F6 Tx Deviation Calibration
F9 Squelch Adjustment

Board

Replacement

Menu

Figure 7-2. Service Menu Structure

Each SERVICE screen provides the capability to
increase or decrease the ‘softpot’ value with the key­board UP/DOWN arrow keys respectively. A graphi­cal scale is displayed indicating the minimum,
maximum, and proposed value of the softpot, as
shown in Figure 7-3.

015

Min.

Value

Max.

Value

MAEPF-22858-O

Figure 7-3. Softpot Concept

Tuning Procedure

Starting the Tuning Procedure

1. From the SERVICE menu, press F6 to select
BOARD REPLACEMENT.

2. Press F2 for LOGIC OR RF BOARD replace­ment.

Tx Power

1. Press F3 to select Tx POWER.

2. Press F6 to key the radio. The screen will indi-

cate that the radio is transmitting.

3. Adjust the transmit power value with the UP/
DOWN arrow keys.

4. Press F6 again to dekey the radio, and then
press F8 to program the softpot value.

Reference Oscillator Alignment

NOTE

The frequency of the transmitter must be
checked oninstallationandat least annu­ally.

Adjustment of the reference oscillator is critical for
proper radio operation. Improper adjustment will not
only result in poor operation, but also a misaligned
radio that will interfere with other users operating on
adjacent channels.Forthisreason, the referenceoscilla­tor should be checked every time the radio is serviced.
The frequency counter used for this procedure must
have a stability of 0.1 ppm (or better).

1. Press F4 to select the REFERENCE OSCILLA­TOR softpot.

NOTE

Perform the following procedures in the
sequence indicated.

2. Press F6 to key the radio. The screen will indi­cate that the radio is transmitting.

3. Measure the transmit frequency that appears
on the screen of your frequency counter.

Alignment Default Data

4. Use the UP/DOWN arrow keys to adjust the

1. Press F2 to select ALIGNMENT DEFAULT

DATA.

2. Press F8 for PROGRAM VALUE.

7-2 6880905Z99-O June, 2000

reference oscillator.

5. Press F6 again to dekey the radio and then
press F8 to program the softpot value.

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual RadioTuningProcedure

Tuning Procedure

Transmitter Power

NOTE

During Tx POWER tuning, measure and
note the DC transmit current (ITx)for
each channel in the high power band.

1. Press F5 to select the Tx POWER calibration

softpot. The screen will indicate the transmit
test frequencies to be used.

2. Press F6 to key the radio.

3. Use the UP/DOWN arrow keys to adjust the
transmit power value.

4. Press Enter to select next softpot frequency.

5. Repeat steps 3 and 4 for the remaining test fre­quencies.

6. Press F6 to dekey the radio.

7. Press F8 to program the value.

Transmit Current Limit

NOTE

Larger Softpot values yields increased
CUTBACK resulting in LOWER
POWER.

1. After TxPOWERtuning the TRANSMIT CUR­RENT LIMIT screen will appear. Select the fre­quency with the highest DC transmit current
(ITx) measured during the Tx POWER tuning
procuedure.

2. Press F6 to key the radio.

3. Use the UP/DOWN arrow keys to adjust the
DC transmit current value per Table 7-1.

Table 7-1. Transmit Current Limit Tune Windows

Model Min Max

800_15W 5.10 A 5.50 A

thesizer low frequencyport)lines. Compensation algo­rithm is critical to the operation of signaling schemes
that have very low frequency components (e.g. DPL)
and could result in distorted waveforms if improperly
adjusted.

1. Press F6 to select TX DEVIATION CALIBRA-

TION. The screen will indicate the transmit
test frequencies to be used.

2. Begin with the lowest test frequency shown on
the screen.

3. Press F6tokeytheradio. Record this measure­ment.

4. Press F4 to select 2.5 kHz.

5. Use the UP/DOWN arrow keys to adjust the
deviation to within 0.5 dB of the value
recorded in step 3.

6. Press Enter to move to next softpot value.

7. Repeat steps 5 and 6 for the remaining fre­quencies.

8. Press F8 to program the softpot value.

Transmit Deviation Limit

The transmit deviation limit softpot sets the maximum
deviation ofthecarrier.Tuning is performedfor25 kHz
channel spacing.

1. Begin with the lowest test frequency shown on
the screen.

2. Press F6 to key the radio.

3. With Test Box 4460A: inject a 1 kHz tone, 2000
mVrms.

4. Use the UP/DOWN arrow keys to adjust the
deviation to between 4.4 kHz and 4.8 kHz.

5. Press Enter to move to the next softpot value.

6. Repeat steps 4 and 5 for the remaining fre­quencies shown on the screen.

800_35W ITx + 0.4 A ITx + 1.0 A

4. Press F6 to dekey the radio.

5. Press F8 to program the value.

Transmit Deviation Balance
(Compensation) & Deviation Limit

Compensation alignment balances the modulation
sensitivity of the VCO and reference modulation (syn-

June, 2000 6880905Z99-O 7-3

7. Press F6 to dekey the radio.

8. Press F8 to program the softpot value.

Squelch

The squelch softpots set the signal to noise ratio at
which the squelch opens.

1. Press F9 to select SQUELCH Adjustment.

2. Adjust the UP/DOWN arrow key to the mini­mum squelch value.

Radio Tuning Procedure GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Tuning Procedure

3. Apply a standard RF input level of -47 dBm to
the radio on the test frequency.

4. Adjust the radio’s volume control to obtain
rated audio power at the external speaker of
the accessory connector.

5. Reduce the RF input level until 10 dB SINAD
is measured.

6. Adjust the UP/DOWN arrow key until the
squelch just closes. Monitor for squelch chat­ter and adjust UP as required.

7. When no chatter is detected press F8 to pro­gram.

Ending the Tuning Procedure

1. Press F2 to continue.

2. Press F10, F10 to return to the Service menu.

7-4 6880905Z99-O June, 2000

Section 8

Theory of Operation

Introduction

This section provides theory of operation information
for the radio. It starts with a block diagram level func­tional description of the entire radio. This is followed
by a detailed functional description foreachofthefour
major functions that make up the radio.

Overview

The main radio is a single board design, consisting of
the transmitter, receiver, and controller circuits.

RECEIVER

MIXER

3-POLE CERAMIC
PRE-SELECTOR

RF
AMP

3-POLE CERAMIC
PRE-SELECTOR

The controlheadis mounted directly onthefront ofthe
radio. The controlhead contains a speaker,LED indica­tors, a microphone connector and buttons which pro­vide the user with interface control over the various
features of the radio and a display.

In addition to the power cable and antenna cable, an
accessory cable can be attached to a connector on the
rear of the radio. The accessory cable provides the nec­essary connections for items such as external speaker,
foot operated PTT, ignition sensing, public address,
remote desk set and data modem.

AUDIO & LOGIC

AUDIO
PA

ASFIC

CPU

LO SIGNAL

2-POLE IF

BACK-END

2.1 MHZ

CPU CLOCK

MOD

SPI

DIRECTIONAL
COUPLER

HARMONIC
FILTER

T/R

SWITCH

PENDULUM

RF PA

16.8 MHZ

SYNTHESIZER

RX/TX

PA
LINEUP

SYNTHESIZER

LINEUP

VCO

TA
VCO

LOOP
FILTER

Figure 8-1. 800-MHz Radio Functional Block Diagram

FRAC N
IC

MOD

MEMORY

KEYBOARD
DISPLAY

POWER
CONTROL

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Receiver Detailed Functional Description

Receiver Detailed Functional
Description

The receiver is composed of four sections: receiver
front end, receiver IF, receiver back end and the Audio
Signal Filter IC (ASFIC) that is part of the controller
section.

The RF signal from the antenna switch in the PA sec­tion enters the first bandpass filter (FL5203). The first
bandpass filter has three poles, a 860-MHz center fre­quency, a 20-MHz wide passbandanda40-dB rejection
for image frequencies (761 to 780MHz).

After the firstbandpassfilter, the signal passes toapair
of hot-carrier limiting diodes (D5303) placedinfrontof
RF preamplifier Q5301. The hot-carrier diodes limit
strongsignalstoprevent them fromoverdriving theRF
preamplifier and damaging it.

The RX front end is a Low Noise Amplifier (LNA) that
consists of Q5301. Its main purpuse is to set the noise
figure of the receiver. The front end amplifier as well as
the IF amplifiers are shut off during transmit by K9.1
line via switch Q5230, to provide isolation in talk­around mode.

After the LNA, the signal enters a second bandpass fil­ter (FL5204), which is identical to FL5203. The band­pass filters are fixed tuned from 850 to 870 MHz.

After the second bandpass filter, mixer U5211 down­converts the signal to the IF frequency.

mixer IF port to 50 Ohm out of the IF frequency band.
The diplexer consists of R5401, C5404, L5402.

The IF signal is fed to first crystal filter Y5201 through
matching network L5401, C5200.

Crystal filter Y5201 has two poles. The crystal filter is
followed by matching elements, that match the filter
output impedance to the input impedance of IF ampli­fier Q5201.

Following the IF amplifier is a matching network that
matches theIFamplifier output impedancetothe input
impedance of a second 45.1-MHz crystal filter (Y5202).
The second crystal filter is followed by matching ele­ments that match the output of the second crystal filter
to the input of the receiver back end circuits. After the
matching circuit, the signal passes a pair of hot-carrier
limiting diodes (D5201) placed in front of the back end
circuit.

The receiver back end consists of BBR IC (U5201) that
contains the following functions:

• Preamplifier & mixer to convert the signal to a

second IF frequency of 455 kHz.

• Second LO circuit

• Second IF amplifiers

• FM Demodulator

• Audio amplifier

In additiontoBBR IC, the backendcontains the follow­ing components:

The mixer is a passive double-balance mixer that gets a
local oscillator signal in the range of 806 to 825 MHz
from the synthesizer and works on 4-dBm power. The
IF frequency is 45.1 MHz. A diplexer matches the

PRE-SELECTOR
3 ELEMENTS
CERAMIC FILTER

LOSS = 2.5dB
REJ = -40 dB @ IMAGE

K9.1

5V_REG
9V3
ADAPT

GAIN = 16 dB
NF = 2 dB

RF
AMP

SW 5 V

PRE-SELECTOR
3 ELEMENTS
CERAMIC FILTER

LOSS = 2.5dB
REJ = -40 dB @ IMAGE

LO_INJ

C. LOSS = 7.5 dB

NF = 7.5 dB

Figure 8-2. Receiver Functional Block Diagram

• Second LO resonator for 44.645 MHz (Y5211)

• Crystal filters for 455 kHz (FL5201, FL5202)

• Demodulator filter (C5224)

BPF 455 kHz
LOSS = 4 dB
BW = 20 kHz

GAIN = 21 dB
NF = 3.3 dB
IIP3 = 3 dBm

IF BPF
CRYSTAL
2-POLE

LOSS = 2 dB
REJ = 15 dB @ 25 KHz

IF
AMP

IF BPF
CRYSTAL
2-POLE

LOSS = 2 dB
REJ = 15 dB @ 25 KHz

2ND LO

44.654 MHZ

BBR

BPF 455 kHz
LOSS = 4 dB
BW = 25 kHz

DET_AUDIO

RSSI

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GTX LTR/Privacy Plus 800 MHz Mobile Service Manual TheoryofOperation

Transmitter Detailed Functional Description

The IF signal routed to BBR IC is amplified, converted
to 455 kHz, filtered, limited and demodulated.

Demodulated audio comes out of BBR IC at U5201-28
and is fed to the ASFIC, which is part of the radio con­troller section.

In addition to the audio output signal, the receiver sec­tion provides an RSSI (Receiver Signal StrengthIndica­tor) at U5201-11. The RSSI signal is fed to the ASFIC
and accessory connector.

ADAPT signal into U5201-22 controls the BBR IC. The
normally low (0 VDC) ADAPT signal is high (5 VDC)
during change of radio channels, transition from trans­mit to receive or at turn-on. The ADAPT signal is used
to control precharge of capacitor C5231 at
DEMOD_OUT. This is done in order to eliminate the
transient during frequency change or when the radio
goes from transmit to receive mode.

Transmitter Detailed Functional
Description

15 Watt PA

The 15-W PA is a three-stage radio frequency (RF)
power amplifier used to amplify the output from the
TX injection lineup to the radio transmit level. It con­sists of driver stage Q6501 followed by a two-stage
power module U6501.

The two stages of the power module operate from the
A+ supply voltage. The module is switched on/off by
the K9.1 line through switch U6502 (which connects
the A+lineto pin 2 ofU6501when transmit isenabled).
The RF drive, which is routed into transistor Q6501, is
controlled from Q6506 via the PA control line. The ris­ing control voltage on the PA control line causes a ris­ing collector voltage on Q6501. This causes more
power out of the stage. Conversely, a decreasing con­trol line voltage decreases the power delivered into the
next stage. By controlling the drive power to U6501
and the following stages in the poweramplifierlineup,
ALC loop is able to regulate the output power of the
transmitter.

The antenna switch is switched synchronously with
the keyed 9.1 voltage. In the transmit mode, this 9.1
voltage is high—turning on diodes CR6502, CR6503
and CR6504. When CR6502 is turned on, it forms a low
impedance to the RF transmit path and allows the sig­nal to pass through. Diodes CR6503 and CR6504 short
the ends of quarter wavelength lines to ground, pre­senting a high impedance towards the receiver. In this
way no power is delivered into the receiver, the trans­mit path remains undisturbed, and the receiver is pro­tected during transmission.

In the receive mode, all these diodes are off. The off
capacitance of CR6502 istunedbyL6508 to form a high

impedance looking into the transmitter. Therefore,
energy coming in the receive mode is channeled to the
RX port.

Harmonics ofthetransmitter are attenuatedbythe har­monic filter. The harmonic filter is formed by inductors
L6513 and L6518 as well as capacitors C6540-C6542,
C6551-C6553. This network forms a low-pass filter to
attenuate harmonic energy of the transmitter to speci­fications level.

A forward-power detector follows the harmonic filter.
This forward-power detector is a microstrip printed
circuit, which couples a small amount of the forward
energy and to diode CR6506 where it is rectified. This
rectified signal (VFORWARD) forms the forward volt­age which the power control circuit holds constant.
Holding this voltageconstant(whichis proportional to
the RF rectified energy appearing across the diode)
ensures the forward-power out of the radio is held to a
constant value.

Thermistor R6519 senses temperature in the area of the
power module. This signal is fed back into the power
control circuit to protect the power amplifier against
over-temperature conditions.

Resistor R6520, in series with the A+ line supply, feeds
voltage to the powermodule.Thevoltage across R6520
is monitored and the difference voltage is channeled to
the power control circuit. The power control circuit
monitors the voltage drop across the resistor which is
determined by the magnitude of the drain current in
U6501. It uses this as a limiting mechanism whereby
the power control circuit limits the magnitude of cur­rent that can be drawn by U6501. This protects the
device from over dissipation.

Bias voltage reverse polarityprotectionforthe transmit­ter is providedbydiodeCR6508. Under reverse polarity
conditions to theradio,thisdiodeconducts and protects
the radio from damage. This diode also provides tran­sient over-voltage protection by breaking down when
the supply voltage to the radio exceeds 24 V.

35 Watt PA

The 35-Watt PA is a four stage radio frequency (RF)
power amplifier used toamplifytheoutputfromthe TX
injection lineup to the radio transmit level. It consists of
driver stageQ6501,two-stage power module U6501and
RF final device transistor Q6505.

Q6505 and U6501 operate from the A+ supply voltage.
U6501 is switched on/off by the K9.1 line through
switch U6502 (which connects the A+ line to pin 2 of
U6501 whentransmitis enabled). The RF drive,whichis
routed into transistor Q6501, is controlled from Q6506
via the PAcontrolline. The rising control voltage on the
PA control line causes a rising collector voltage on
Q6501. This causes more power out of the stage. Con­versely, a decreasing control line voltage decreases the

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Synthesizer Detailed Functional Description

power delivered into the next stage. By controlling the
drive power to U6501 and the following stages in the
power amplifier lineup, ALC loop is able to regulate the
output power of the transmitter .

The antenna switch is switched synchronously with the
keyed 9.1 voltage. In the transmit mode, this 9.1 voltage
is high—turning on diodes CR6502, CR6503 and CR1.
When CR6502 is turned on, it forms a low impedance to
the RF transmit path and allows the signal to pass to the
antenna via harmonic filter hybrid H6502. Diode CR1in
H6502 forms a low impedance that is transformed up to
an open circuit through a quarter wavelength transmis­sion line. This prevents transmitter power from being
delivered into the receiver. Diode CR6503 is also turned
on in transmit mode further isolating the receiver from
transmitter energy. The transmitter power from the
antenna switch passes to the antenna via harmonicfilter
hybrid module H6502. H6502 incorporates a low pass
filter, which attenuates harmonic energy out of the
transmitter to specifications level.

In receivemode, diodes CR6502,CR6403and CR1 areall
off. The off capacitance of CR6502 is tuned by L6512 to
form a high impedance network looking into the trans­mitter. Therefore, received signal energy from the
antenna is channeled to the input of the receiver with
minimal loss maximizing sensitivity.

A forwardpower detector utilizing adir ectionalcoupler
is included in the harmonic filter hybrid. This forward­power detector is a microstrip printed circuit, which
couples a small amount of the forward energy to diode
CR2 where it is rectified. This rectified signal (VFOR­WARD) forms the forward voltage which the power
control circuit holds constant. Holding this voltage con­stant (which is proportional to the RF rectified energy
appearing across the diode) ensures the forward-power
out of the radio is held to a constant value.

Thermistor R6519 senses temperature in a location near
Q6505. This signal is fed back into the power controlcir­cuit to protect Q6505 against over-temperature condi­tions.

Resistor R6520, in series with the A+ line supply , feeds
voltage to Q6505.Thevoltageacross R6520 is monitored
and the difference voltage is channeled to the power
control circuit. The power control circuit monitors the
voltage drop across the resistor ,which is determined by
the magnitude of the collector current in Q6505. It uses
this as alimitingmechanismwhereby the power control
circuitlimitsthe magnitude ofcurrentthat can bedrawn
by Q6505. This protects the device from over dissipa­tion.

Bias voltage reverse polarityprotectionforthe transmit­ter is providedbydiodeCR6508. Under reverse polarity
conditions to theradio,thisdiodeconducts and protects
the radio from damage. This diode also provides tran­sient over-voltage protection by breaking down when
the supply voltage to the radio exceeds 24 VDC.

Power Control Circuitry

The power control circuitry consists of three mecha­nisms:

Power Set

The control loop compares the power output level to
the pre-set value. The VFORWARD voltage from the
forward power detector is amplified by U701 pins 5 -7,
and compared to D/A U702-2 & 4. Should a difference
be detected, an error current is generated into the loop
integrator U702-8 & 9, until equilibrium is obtained.
The use of 2 D/A outputs for power set enables fine
tuning wherepin2is coarse tune through resistor R703
and pin 4 is fine tune through resistor R706.

Current Limit

Current to thepowermoduleU6501(or RF final device
Q6505) is monitored using R6520 and compared to a
pre-set limit D/A U702-11 and U701-(1-3). When the
limit is exceeded, an errorcurrentis generated through
diode CR721 to the loop integrator, which lessens the
PA_CNTRL line and reduces the power amplifier out­put.

Thermal Protection

When the power m odule U6501 (or RF final device
Q6505) overheats, the resistance of thermistor R6519
drops. Because of the voltage divider formed by R721,
R725, and R6519, this resistance drop is sensed and
amplified through U701-(12-14). This causes a current
error through diode CR721 to flow into the loop inte­grator and reduce transmitted output power.

When controller U101-45, detects a voltage propor­tional to 85 degrees Centigrade through R726-727 it
reduces transmit power by 50 percent during subse­quent Tx key-ups.

Synthesizer Detailed Functional
Description

The complete synthesizer subsystem consists of refer­ence oscillator U5700, Fractional-N Synthesizer IC
U5702, two on-board voltage controlled oscillators,
buffer stage U5701, and two discrete buffer amplifiers
Q5707, and Q5705.

Reference oscillator U5700 contains a temperature
compensated crystal which operates at a frequency of

16.8 MHz. The output of the oscillator U5700-10 is
applied to U5702-14 via R5715 and C5733.

There are two varactor tuned VCOs. The oscillator fre­quency is controlled by the voltage applied via L5701
and L5702. This control voltage ranges from 2.5 to 10.5
VDC. A lower control voltage produces a lower fre-

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GTX LTR/Privacy Plus 800 MHz Mobile Service Manual TheoryofOperation

Synthesizer Detailed Functional Description

quency and a higher control voltage produces a higher
frequency respectively.

The RX/TX VCO (806 - 825 MHz band) provides the
first LO injection frequency which is 45.1 MHz below
the carrier frequency and TX injection for conventional
mode. The RX/TX VCO is selected by pulling U5702-1
low.

The Talk-Around (TA) VCO (851 - 870 MHz band) pro­vides the transmit frequency in TA mode. The TA VCO
is selected by pulling U5702-1 high.

The buffer stage U5701 and feedback amplifier Q5703
provide the necessary gain and isolation for the syn­thesizer loop.

Fractional-N Synthesizer IC U5702 consists of:

• Prescaler,

• Programmable loop divider,

• Control divider logic,

• Phase detector,

• Charge pump,

• A/D Converter for low frequency digital mod­ulation,

• Balance attenuator to balance the high and low
frequency analog modulation,

• 13-V positive voltage multiplier,

• Serial interface for control,

• Super filter for the regulated 9.3 V DC

C5712 is the super filter capacitor. The output voltage
of the super filter U5702-18, drops from 9.3 VDC to
about 8.5 VDC. This filtered 8.5 VDC supplies voltage
for theVCOs,the VCO switching unitsU5704& U5705,
feedback amplifier Q5703, and synthesizer charge
pump resistor network R5707- R5709.

The synthesizer supply voltage is provided by the 5
VDC regulator U5703. The 2.1 MHz reference signal at
U5702-11 is generated by dividing down the signal of
reference oscillator U5700 after it is applied to U5702-

14.
In order to generate a high voltage that supplies the

charge pump output stage at VCP (U5702-32), 13 V DC
is generated at pin 3 of CR5700 by the positive voltage
multiplier circuitry. This voltage multiplier is a diode
capacitor network drivenbytwo 1.05 MHz, 180-degree
out-of-phase signals from U5702-9 &10.

enabling of these lines allows the microprocessor to
program the synthesizer.

The output of the VCO is fed to the buffer input port of
U5701-1. The output of the buffer U5701-5 is applied to
the input of the feedback amplifier Q5703 through an
attenuator network consisting of R5735, R5733 and
R5732. To close the synthesizer loop, the output of
Q5703 is connected to PREIN (U5702-20) of the synthe­sizer. The buffer output U5701-5 also provides the sig­nal forreceiver LOinjectionand transmit injectionline­up. The charge pump current is present at U5702-31.

The loop filter (which consists of R5716, R5717, R5734,
C5750, C5744, C5745, C5736, C5746, C5747, C5794,
C5795, C5796, C5797, C5798, C5799) will then trans­form this current into a voltage that will, in turn, be
applied to Vcontrol of the VCOs and steer the output
frequency.

In order to modulate the PLL a two-point modulation
method is utilized. The audio signal is applied to both
the A/D converter (low frequency path) as well as the
balance attenuator (high frequency path) via U5702-8.

The A/D converter will convert the low-frequency,
analog modulating signal into a digital code that will
in turn be applied to the loop divider. This will cause
the carrier to deviate. The balance attenuator is used to
adjust the VCO deviation sensitivity to high frequency
modulating signals. The output of the balance attenua­tor is present at the MODOUT port U5702-28.

The transmit injection line-up consists of two amplifier
stages, Q5707 & Q5705, used to provide a constant out­put to drive the RF transmitter and provide isolation.
The Q5705 stage is actively biased through Q5701, and
Q5707 has passive biasing. The TX injection line-up is
on only during the transmit mode (K 9.1V line is at

9.1 V).

The first VCO is used for receive LO_INJ and TX_INJ
in the conventional 806-825 MHz transmit band. The
second VCOisusedfor TX_ INJ in the talk-around851­870 MHz transmit band.

The VCOs get their control voltage through L5701 and
L5702. Q5704 and Q5706 are the oscillation transistors.
C5793, C5792 and C5785, C5784 are the oscillator feed­back capacitors. U5706 and U5707 are micro strip reso­nators. CR5701 and CR5702 are the varactors. C5790
and C5782 determine the VCO KV. C5703 and C5704
determine the VCO operation frequency. C5791 and
C5783 are the coupling capacitors between the tank
and the oscillation transistor.

The serial interface (SPI_DATA) is connected to the
microprocessor via the data line (U5702-5), clock line
(U5702-6), and chip enable line (U5702-5). Proper

June, 2000 6880905Z99-O 8-5

The two VCOs are coupled to buffer amplifier Q5702
through C5789 and C5786. The buffer amplifier output
signal is fed to U5701-pin 1 through C5770 & R5736.

Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Detailed Functional Description

Controller Detailed Functional
Description

General

The radio controller consists of four main subsections:

• Digital Control

• Audio Processing

• Power Control

• Voltage Regulation

The digital section consists of a microprocessor, mem­ory ICs, glue logic circuitry, signal MUX ICs, On/Off
circuit, and general purpose Input/Output circuitry.

The controller is based on the Motorola 68HC11K1
microprocessor-U101, 8-Kbyte SRAM-U103, 32 Kbyte­Flash memory-U102, and 8 Kbyte EEPROM -U104.

NOTE

From this point on, the 68HC11K1micro­processor will be referred to as K1µPor
µP.
References to a Control Head will be to
type P+ (Display radio).

Voltage Regulators

Voltage regulation for the controller is provided by 3
separate devices: +5 VDC U631, +9.3 VDC U601, and
UNSW 5V (R621 and VR621). An additional regulator
is located in the RF section.

5 VDC regulation for the digital circuitry is provided
by U631. Input and output capacitors C631, C632 and
C633-635 are used to reduce high-frequency noise and
provide additional charge during short battery tran­sients. This regulator provides a reset output U631-5
that drops to 0 VDC when the regulator output goes
out of regulation. This is used to reset the controller in
order to prevent improper operation. Diode D631 pre­vents discharge of C632 by negative spikes on the 9.3
voltage.

Regulator U601 is used to generate the 9.3 VDC
required by some audio circuits, the RF circuitry and
power control circuitry. Input and output capacitors
C601-603 and C604-605 are used to reduce high-fre­quency noise. R602-603 set the regulator output volt­age. If the voltage atU601-1isgreater than 1.3 VDC the
regulator output decreases and if the voltage is less
than 1.3 VDC, the regulator output increases. This reg­ulator output is electronically disabled by a 0 VDC sig­nal on U601-2. Q601 and associated circuitry R601,
R604-605 disable the regulator when the radio is
turned off.

UNSW_+5V_CL is only used by a few circuits, which
draw low current and require 5 VDC while the radio is
off.

UNSW_+5V_CL isusedto save the internalU103RAM
data. C622 allows the battery voltage to be discon­nected for a couple of minutes without losing RAM
parameters. Diode D621 prevents radio circuitry from
discharging this capacitor.

The SW_+B voltage is monitored by the µP through
voltage divider R641-642. Diode VR641 limits the
divided voltage to 5.1 VDC in order to protect the µP.

Diode CR6508 located in the PA section acts as protec­tion against transients and reverse polarity of the sup­ply voltage.

Electronic On/Off

The radio has circuitry which allows radio software
and/or external triggers to turn the radio on or off
without direct user action. This allows, for example,
automatic turn-on when ignition is sensed and off
when ignition is off.

Q611is used to provideSW_B+to the various radio cir­cuits. Q611 acts as an electronic on/off switch con­trolled by Q612 (the switch is on while Q612 is on).
When the radio is turned on, the voltage at the base of
Q612 is high (about 0.6 V). Q612 switches on (satura­tion) and pulls down the voltage at Q611-base. This
turns on Q611 and supplies SW_B+ to the radio.Theon
resistance ofQ611 is very low (less than 1OHM),sothe
voltage level at SWB+ is essentially the same as A+.

The electronic on/off circuitry can be enabled by the
microprocessor (through ASFIC, B+ _CONTROL), the
mechanical On/Off button on the control head
(ON_OFF_CONTROL), or the ignition sense circuitry
(IGNITION_CONTROL). If one of the three paths
causes a low at the collector of Q612, the electronic ON
process is engaged.

Mechanical On/Off

This referstothetypical on/off button which is located
on the control head and turns the radio on and off.
While the on/off button is turned on, line ON_OFF_
CONTROL goes high during the short pulsegenerated
by the ON_OFF “one-shot” circuitry in the control
head. Thisswitchestheradio on. The microprocessoris
alerted through line ANALOG_ 3 which is pulled to
low by Q925 (in Control Head Model P+) while the
on/offbuttonis turned on. Ifthesoftware detects a low
state, it assertsB+_CONTROLviaASFIC-GCB2,which
keeps Q612 and Q611 on, and in turn the radio is
switched on.

When the on/off button is turned off, the software
detects the line ANALOG_3 changing to low and
switches the radio off by setting B+_CONTROL to low.

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GTX LTR/Privacy Plus 800 MHz Mobile Service Manual TheoryofOperation

Controller Detailed Functional Description

Ignition

Ignition sense is used to prevent the radio from drain­ing the vehicle’s battery while the engine is not run­ning.

When the IGNITION input goes above 1.3VDC, Q450,
Q612 and Q611 turn on, supplying SW_B+ to the radio
and enabling U601 and U631 to supply the regulated
voltage (+5 VDC and 9.3 VDC) to all the circuitry. The
µP starts to run the software, reads the line
IGNITION_SENSE, determines from the level that the
IGNITION input is active and sets the B+_CONTROL
(via the ASFIC-GCB2) to high and latches SW_B+ on.

When the IGNITION line drops below 1.3 VDC, Q450
switches off and R441 pulls line IGNITION_SENSE
high. The software is alerted by line
IGNITION_SENSE toswitchoff the radio bysettingB+
CONTROL line to low. Whenever the IGNITION line
goes above 1.3 VDC, the above process will be
repeated—depending iftheradiowaspreviously on or
off.

The ignition sense capability can be disabled by turn­ing switch S401-2&4on.This supplies FLT_A+ via
R452 to the ignition sense pin continuously. The radio
is shipped with ignition sense disabled.

Hook

TheHOOKlineisusedtoinformtheµPwhenthe
Microphone´s hang-up switch is engaged. Depending
on the radio programming the µP turns the audio PA
on or off. The signal is routed from J101-3 and J400-14
through transistor Q101totheK1µPU101-23.The volt­age range of HOOK in normal operating mode is 0-5
VDC.

Microprocessor Clock Synthesizer

The clock source for the controller ’s microprocessor
system isgeneratedby the ASFIC (U201).Uponpower­up the synthesizer (U5701) generates a 2.1 MHz wave­form thatisrouted from theRFsection (via C202) tothe
ASFIC (on U201 XTAL_IN). For the main board con­troller, the ASFIC uses 2.1 MHz as a reference input
clock signal for its internal synthesizer. The ASFIC, in
addition to audio circuitry, has a programmable syn­thesizer which can generate a synthesized signal rang­ing from1200Hzto 32.769 MHz with steps of 1200 Hz.

While the radio is turned on, the ASFIC generates a
default 3.6864 MHz CMOS square wave µP CLK (on
U201-UPCLK) which is routed to the µP (U101­EXTAL). After the µP starts operation, it reprograms
the ASFIC synthesizer clock to a higher µP CLK fre­quency (usually 7.3728 or 14.7456 MHz) and continues
operation.

The ASFIC synthesizer clock is controlled by the soft­ware, and may slightly be changed while harmonics of

this clock source interfere with the specific radio
receive frequency.

The ASFIC synthesizer loop components (C228, C229
and R222) set the switching time and jitter of the clock
output. If the synthesizer cannot generate the required
clock frequency it will switch back to its default

3.6864 MHz frequency.

Serial Peripheral Interface (SPI)

The µP communicates with the other programmable
ICs through its SPI port. This port consists of SPI
TRANSMIT DATA U101-1, SPI RECEIVE DATA U101­80, SPI CLK U101-2 and chip select lines going to the
various programmable ICs. This BUS is a synchronous
bus (the timing clock signal CLK is sent with SPI
TRANSMIT DATA or SPI RECEIVE DATA).

In the controller section, there are three ICs on the SPI
BUS: ASFIC (U201-E3), EEPROM (U104-1) and D/A
(U731-6). In the RF sections, there are 2 ICs on the SPI
BUS: Pendulum (Reference Oscillator U5702-24) and
Synthesizer (U5701-7). The SPI TRANSMIT DATA and
CLK lines going to the RF section arefiltered with L131
and L132 to minimize noise. The chip select lines for
the ICs are decoded by the address decoder U105.

The SPI BUS is also used for the control head. U106
buffers theSPITRANSMITDATAand CLK lines to the
control head. U106 serves also to switch off the CLK
signal for the LCD display while it is not selected via
LCD_CE signal.

When the µP needs to program any of these ICs, it
drops down the chip select line of the specific IC to a
logic 0 and then sends the proper data and clock sig­nals. The data sent to the various ICs are different. For
example the ASFIC receives 21 bytes (168 bits) while
the DAC needs3bytes (24 bits). After the datahasbeen
sent the chip select line is returned to a logic 1.

SBEP Serial Interface

The SBEP serial interface line allows the radio to com­municate with the Dealer Programming Software
(DPS). This interface connects to the Microphone con­nector (J902) via Control Head connector (J101) and
comprises BUS+ (J101-15). The line is bi-directional,
meaning that either the radio or the DPS can drive the
line.

The connection from the Control Head is made
through the BUS+ line, via L421 (SCI_RSS line) and
diode CR151 to the U101-78-RxD and U101-79-TxD
ports.

Microprocessor (Open Controller)

For this radio, the K1µP is configured to operate in the
expanded or bootstrap modes. In expanded mode the
K1µP uses external memory ICs, whereas in bootstrap

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Detailed Functional Description

mode it uses only its internal memory.In normal radio
operation, the K1µP is operating in the expanded
mode.

In the radio expanded mode, the K1µP (U101) has
access to threeexternal memory ICs: U102 (Flash mem­ory), U103 (SRAM), U104 (EEPROM). Also, within the
K1µP thereare 768 bytes ofinternalRAM and 640 bytes
of internal EEPROM, as well as glue logic circuitry to
select external memory ICs.

The external EEPROM (U104) as well as the K1µP’s
own internal EEPROM contain the radio information
which is customer specific, referred to as the codeplug.
This information consistsofitems such as: 1) frequency
operating band, 2) channel frequencies, and 3) general
tuning information. General tuning information and
other more frequently accessed items are stored in the
internal EEPROM (within the 68HC11K1), while the
remaining data is stored in the external EEPROM. (See
the particular IC subsection for more details.)

The external SRAM (U103) as well as the K1µP’s own
internal RAM are used for temporary calculations
required by the software during normal radio opera­tion. All of the data stored in both of these locations is
lost when the radio is powered off. (See the particular
IC subsection for more details.)

The Flashmemorycontains the actual Radio Operating
Software. This software is common to all radios for the
same model type. For example, Privacy Plus models
have a different version of software in Flash memory
than an LTR model. (See the particular IC subsection
for more details.)

The MODA LIR (U101-77) and MODB VSTPY
(U101-76) inputs to the K1µP must be at a logic 1 level
for properoperation.After the K1µP starts execution,it
will periodically pulse these lines to determine the
desired operating mode. While the Central Processing
Unit (CPU) is running a new instruction, MODA LIR
(as an open-drain CMOS output) drops low.

However, since it is an open-drain output, the signal
waveform risehasan exponential shape, likeanRC cir­cuit.

The µP has eight analog-to-digital converter ports
(A/D): PE0 to PE7. These lines may measure voltage
levels in the range of 0 to 5 VDC and convert that level
to a number ranging from 0 to 255 which can be read
by the software to take appropriate action.

For example, U101-46 is the battery voltage detect line.
R641 and R642 form a resistor divider on SW_B+. With

47.5K and16.2K and a voltage rangeof11 V to 17V,the
A/D port would see 2.74 Vto4.24Vwhichwould then
be convertedtoa digital value in therangeof140 to 217
respectively.

U101-51 is the high reference voltage for the A/Dports
on the K1µP. ResistorR106and capacitor C106 filter the
+5 VDC reference. If this voltage is lower than +5 VDC
the A/D readings will be incorrect. Likewise U101-50
is the low reference for the A/D ports. This line is nor­mally tied to ground. If this line is not connected to
ground, the A/D readings will be incorrect.

Capacitors C104, C105 serve to filter out any AC noise
which may ride on +5VDC at U101.

The K1µP has an address bus of 16 address lines (A0­A15), a data bus of 8 data lines (D0-D7). and three con­trol lines; CSPROG (U101-29) to select U102-30 (OTP
memory), CSGP2 (U101-28) to select U103-20 (SRAM)
and PG7_R_W for read and write. All other chips
(ASFIC/PENDUL­LUM/DAC/FRACN/LCD/LED/EEPROM) are
selected by 3 lines of the K1µP using chip select
decoder U105. When theK1µPisfunctioning normally,
the address and data lines should be within CMOS
logic levels.

The low-order address lines (A0-A7) and the data lines
(D0-D7) should change.

On the K1µP the lines XIRQ (U101-30), MODA LIR
(U101-77), MODB VSTPY (U101-76) and RESET (U101-

75) should be logic high during all normal K1µP oper­ation. Whenever a data or an address line becomes
unloaded or shorted to an adjacent line, a common
symptom is that short negative pulses occur on the
RESET line, with a period of 20 msec. When two lines
are short-circuited, mid logic level (around 2.5 V) may
be observed, while these lines are opposite driven by
two different ICs.

One-Time Programmable (Flash) Memory

The 32-KByte Flash memory (U102) contains the
radio’s operating software. This memory is read-only.
The memory access signals (EN_CE, EN_OE and
EN_WE) are generated by the µP.

Capacitor C131 serves to filter out any AC noise which
may ride on +5V at U101, and C132 filters out any AC
noise on Vpp.

Electrically Erasable Programmable
Memory (EEPROM)

EEPROM (U104) containstheradio’soperating param­eters such as operating frequency and signalling fea­tures,commonlyknownas the codeplug. It isalsoused
to store radio operating state parameters such as cur­rent mode and volume. U104 is a 8 Kbyte device. This
memory can be written to in excess of 100,000 times
and will retain the data when power is removed from
the radio. The memory access signals (SI, SO and SCK)
are generated by the K1µP and chip select (CS_) is gen­erated by address decoder U105.

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GTX LTR/Privacy Plus 800 MHz Mobile Service Manual TheoryofOperation

Controller Audio & Signaling Circuits

Additional EEPROM is contained in the K1µP (U101).
This EEPROM is used to store radio tuning and align­ment data.Likethe external EEPROM thismemorycan
be programmed multiple timesandwillretainthe data
when power is removed from the radio.

NOTE

The external EEPROM plus the 640 bytes
of internal EEPROM in the 68HC11K1
comprise the complete codeplug.

Static Random Access Memory (SRAM)

The SRAM (U103) contains temporary radio calcula­tions or parameters that can change very frequently,
and which are generated and stored by the software
during its normal operation. The information is lost
when the radio is turned off. The device allows an
unlimited number of write cycles. SRAM accesses are
indicated by the EN_CS signal U103-20 (which comes
from U101-28) going low. U103 is commonly referred
to as theexternalRAMas opposed to the internal RAM
which is the 768 bytes of RAM which is part of the
68HC11K1.BothRAMspacesservethepurpose. How­ever, the internalRAMisused for the calculated values
which are accessed most often. Capacitor C133 serves
to filter out any AC noise which may ride on +5VDC at
U103.

Control Head

Control Head is available for user interface. The Con­trol Head contains the internal speaker, the micro­phone connector, several buttons to operate the radio
and several indicator LEDs to inform the user about
the radio status. Additionally Control Head uses a 3
digit LCD (Liquid Crystal Display) for the channel
number.

When turned on, the On/Off switch turns the voltage
regulators on by pulling ON_OFF_CONTROL to high
and connects the base of Q925(P), Q825(K) to FLT_A+.
This transistor pulls the line ANALOG_3 to low to
inform the µP that the On/Off button is pressed. If the
radio is switched off, the µP will switch it on and vice
versa. All other buttons work the same way. If a button
is pressed, it will connect one of the 3 lines ANALOG_
1,2,3 toaresistive voltage divider connectedto+5VDC.
The voltages of the lines are A/D converted inside the
µP and specify the pressed button.

All thebacklight and indicator LEDsare driven by cur­rent sources and controlled by the µP via SERIAL
PERIPHERAL INTERFACE (SPI) interface. The LED
status is stored in shift register U941(P). Line LED CE
enables the serial write process via Q941(P), while line
LED CLCK BUF shifts the data of line SPI DATA BUF
into the shift register.

In addition Control Head contains the LCD H931, the
display driver U932 andatransistorQ953to switch the

display driver on and off. Q953 is controlled by the µP
via shift register U941, The display data of line SPI
DATA BUF is shifted into the display driver by clock
signal LCD CLCK BUF.

Controller Audio & Signaling
Circuits

General

Audio Signalling Filter IC (ASFIC)

The ASFIC (U201) used in the controller has four func­tions;

• RX/TX audio shaping, i.e. filtering, amplifica­tion, attenuation

• RX/TX signalling, PL/DPL/HST/LST

• Squelch detection

• Microprocessor clock signal generation (see
Microprocessor Clock Synthesizer Description
Block).

The ASFIC is programmable through the SPI BUS
(U201-E3/F1/F2), normally receiving 21 bytes. This
programming sets up various paths within the ASFIC
to route audio and/or signalling signals through the
appropriate filtering, gain and attenuator blocks. The
ASFIC also has 6 General Control Bits GCB0-5 which
are CMOS level outputs. They are used for AUDIO
_PA _ENABLE (GCB0) to switch the audio PA on and
off, EXTERNAL_ALARM (GCB1) to toggle the
EXTERNAL_ALARM pin on the accessory connector
J400-4, B+_CONTROL (GCB2) to switch the voltage
regulators (and the radio) on and FAST_OFF_IGN
(GCB5) which forcestheradio-on latch to the off condi­tion. Two remaining ports, GCB3 and GCB4, are not
used.

Audio Ground

VAG is the dc bias used as an audio ground for the op­amps that are external to the Audio Signalling Filter IC
(ASFIC). U251 forms this bias by dividing 9V3Vwith
resistors R251, R252, and buffering the 4.65 VDC result
with a voltage follower. VAG emerges at pin 1 of U251.
C235 is a bypass capacitor for VAG. The ASFIC gener­ates its own 2.5V bias for its internal circuitry. C221 is
the bypass for the ASFIC’s audio ground dc bias.

NOTE

While thereare ASFIC VAG, and BOARD
VAG (U201-1), each of these are sepa­rated. They are not connected together.

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Audio & Signaling Circuits

Transmit Audio Circuits

Mic Input Path

The radio provides two microphone inputs, one on the
control head (internal mic audio) routed through J101-

16), and one on the accessory connector J400-2 (exter­nal mic audio). The two inputs are connected in paral­lel. Thedcbiasrequired by the microphoneis provided
by resistor R205, derived from the 9V3 source and fil­tered by R204 and C209. The microphone audio signal
is applied via R206 and C211, to the ASFIC at U201-B8.

Filter capacitor C210 provides low-pass filtering to
eliminate frequency components above 3 kHz, and
C211 serves as a DC blocking capacitor. The audio sig­nal at U201-B8 should be approximately 80mV for 60%
of full system deviation.

Flat Tx Audio Input Path

The FLAT_TX_AUDIO signal from accessory connec­tor J400-5 is bufferedbyop-ampU202-(1-3)and fed via
C205 to the ASFIC U201-D7.

PTT Sensing and TX Audio Processing

MIC PTTissensed by the µP. PTTcanalso be generated
by grounding pin 3 on the radio accessory connector,
J400. When microphone PTT is sensed, the µPwill
always configure the ASFIC to enable the mic audio
path. PTT can be configured to enable the EXT_MIC
audio path when J400-2 is connected with an external
mic audio input. Data PTT is configured to enable the
flat transmit audio path (when J400-5 is configured for
FLAT_TX_AUDIO).

Inside the ASFIC, the mic audio is filtered to eliminate
components outside the 300-3000Hz voice band and
pre-emphasize. The capacitor, C231, between ASFIC
pre-emphasis out U201-C8 and ASFIC limiter in U201­E8 AC couples the signal between ASFIC blocks and
prevents the DC bias at the ASFIC output U0201-H8
from shifting when the ASFIC transmit circuits are
enabled. The signal isthenlimitedto prevent the trans­mitter from over deviating. The limited mic audio is
then routed through a summer which is used to add in
signalling data, and then to a splatter filter to eliminate
high frequency spectral components that couldbegen­erated by the limiter. The audio is then routed to the
VCO attenuator, which is tuned in the factory or the
field to set the proper amount of FM deviation. The TX
audio emerges from the ASFIC at U201-H8 MOD IN,
and is routed to the RF section as MOD IN.

MIC

EXT MIC
FLAT TX

AUDIO

CONTROL HEAD
CONNECTOR

J101

16

ACCESSORY
CONNECTOR

2

J400

5

ASFIC U201

MIC IN

B8

D7

AUX TX IN

PRE EMP OUT

C8

FILTERS &
PREEMPHASIS

LS SUMMER

SPLATTER
FILTER

HS SUMMER

LIMITER

Figure 8-3. Transmit Audio Paths

LIM IN

ATTENUATOR

E8

VCO
ATN

TO RF
SECTION
(SYNTHESIZER)

H8
MOD IN

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Controller Audio & Signaling Circuits

Transmit Signalling Circuits

See Figure 8-4 for reference for the following sections.
From a hardwarepoint of view, there are three types of
signalling:

• Sub-audible data (PL/DPL/LST/Connect tone)
that gets summed with transmit voice or signal­ling,

• DTMF data for telephone communication in
trunked and conventional systems, and

• Audible signalling High speed Trunking.

NOTE

The hardware supports all three types
while the radio software determines
which signalling type is available.

Sub-audible Data (PL/DPL)

Sub-audible data implies signalling whose bandwidth
is below 300Hz. PL and DPL waveforms are used for
conventional operation and connect tones for trunked
voice channel operation. The trunking connect tone is
simply a PL tone at a higher deviation level than PL in
a conventional system. Although it is referred to as
“sub-audible data,” the actual frequency spectrum of
these waveforms may be as high as 250 Hz, which is
audible to the human ear. However, the radio receiver
filters out any audio below 300Hz, so these tones are
never heard in the actual system.

PL CLK U201-C3 at twelve times the desired data rate.
For example, for a PL frequency of 103 Hz, the fre­quency of the square wave would be 1236 Hz.

This drives a tone generator inside U201 which gener­ates a staircase approximation to a PL sine wave or
DPL data pattern. This internal waveform is then low­pass filtered and summed with voice or data. The
resulting summed waveform then appears on U201­H8 (MOD IN), where it is sent to the RF board as pre­viously described for transmit audio. A trunking con­nect tone would be generated in the same manner as a
PL tone.

High Speed Data

High speed data refers to the 3600 baud data wave­forms, known as Inbound Signalling Words (ISWs)
used in a trunking system for high speed communica­tion between the central controller and the radio. To
generate an ISW, the µP first programs the ASFIC
(U201) to the proper filter and gain settings. It then
begins strobing U201-G1 (TRK CLK IN) with a pulse
when the data is supposed to change states. U201’s 5­3-2 State Encoder (which is in a 2-state mode) is then
fed to the post-limiter summer block and then the
splatter filter.

From that point it is routed through the modulation
attenuator and then out of the ASFIC to the RF board.
Microphone audio is muted during High Speed Data
signalling.

Only one type of sub-audible data can be generated by
U201 (ASFIC) at any one time. The process is as fol­lows, using the SPI BUS, the µP programs the ASFIC to
set up the proper low-speed data deviation and select
the PL or DPL filters. The µP then generates a square
wave which strobes the ASFIC PL/DPL encode input

ASFIC U201

HIGH SPEED

5

7

MICRO

CONTROLLER

U101

6

G1

G2

C3

CLOCK IN

DTMF

CLOCK

LOW SPEED
CLOCK

Figure 8-4. Transmit Signalling Paths

Dual Tone Multiple Frequency (DTMF) Data

DTMF data is a dual tone waveform used during
phone interconnect operation. It is the same type of
tones which areheard when using a“Touch Tone” tele­phone.

HS

SUMMER

5-3-2 STATE

ENCODER

DTMF

ENCODER

PL/DPL/LST
ENCODER

SPLATTER

FILTER

LS

SUMMER

ATTENUATOR

H8

MOD IN

TO RF SECTION
(SYNTHESIZER)

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Audio & Signaling Circuits

Thereareseven frequencies, with fourinthe low group
(697, 770, 852, 941Hz) and three in the high group
(1209, 1336, 1477Hz).

The high-group tone is generated by the µP (U101-5)
strobing U201-G1 at six times the tone frequency for
tones less than 1440Hz or twice the frequency for tones
greater than 1440Hz. The low group tone is generated
by the µP (U101-7) strobing U201-G2 (DTMF CLCK) at
six times the tone frequency. Inside U201 the low­group and high-group tones are summed (with the
amplitude of the high group tone being approximately
2 dB greater than that of the low group tone) and then
pre-emphasized before being routed to the summer
and splatter filter. The DTMF waveform then follows
the same path as was described for high-speed data.

1

U401
AUDIO
PA

9

Receive Audio Circuits

Squelch Detect

The radio’s RF circuits are constantly producing an
output at the discriminator (U5201-28). This signal
DET_AUDIO is routed to the ASFIC’s squelch detect
circuitry input SQIN (U201-H7). All of the squelch
detect circuitry is contained within the ASFIC. There­fore from a user’s point of view, DET_AUDIO enters
the ASFIC, and the ASFIC produces two CMOS logic
outputs based on the result. They are CHACT
(U201-H2) and SQDET (U201-H1).

The squelch signal entering the ASFIC is amplified, fil­tered, attenuated, and rectified. It is then sent to a com-

ACCESSORY CONNECTOR

J400

11

INT
SPKR+

SPKR+

4

SPKR-

6

13

16
1

EXT RX AUDIO

INT SPKR+ JUMPER

EXTERNAL
SPEAKER

FROM

RX SECTION

(IFIC)

UNAT RX OUT

H5

H6

RX IN

J6
J7

PL IN

DET AUDIO
(DISCRIMINATOR AUDIO)

AUX RX IN

FILTER &
DEEMPHASIS

LIMITER, RECTIFIER

FILTER, COMPARATOR

SQ IN

J4

VOLUME
ATTEN.

H7

ATTEN.

RX AUD OUT

CH ACT

25 68

INT
SPKR-

CONTROL HEAD CONNECTOR

ASFIC U201

PL FILTER

LIMITER

SQUELCH
CIRCUIT

SQ DET

H2

MICRO

CONTROLLER

U101

PL
LIM

H1

J101

A4

10

2

1
14

INTERNAL
SPEAKER

HANDSET
AUDIO

Figure 8-5. Receive Audio Paths

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Controller Audio & Signaling Circuits

parator to produce an active high signal on CHACT.A
squelch tail circuit is used to produce SQDET
(U201-H1) from CHACT. The state of CHACT and SQ
DET is high (logic 1) when carrier is detected, other­wise low (logic 0).

CHACT is routed to U101-25 while SQDET adds up
with LOCK_DET, weighted by resistorsR113 andR114,
and isrouted toanA/D converter inputU101-43.From
the voltage weighted by the resistors the µP deter­mines whether SQDET, LOCK_DET or both are active.

SQDET is used to determine all audio mute/unmute
decisions except for Conventional Scan. In this case
CHACT is a pre-indicator as it occurs slightly faster
than SQDET.

Audio Processing and Digital Volume Control

The receiver audio signal enters the controller section
from the IF IC (U5201-28) on DET_AUDIO and passes
through RC filter R203 and C208 which filters out IF
noise. The signal is AC coupled by C207 and enters the
ASFIC via PLIN U201-J7.

Inside the ASFIC, the signal goes through two paths in
parallel, the audio path and the PL/DPL path.

The audio path has a programmable amplifier, whose
setting is based on the channel bandwidth being
received, then a LPF filter to remove any frequency
components above3000Hzandthen an HPF to stripoff
any sub-audible data below 300Hz. Next, the recov­ered audiopassesthrough a De-emphasisfiltertocom­pensate for Pre-emphasis which is used to reduce the
effects of FM noise. The IC then passes the audio
through the 8-bit programmable attenuator whose
level is set depending on the value of the volume con­trol. Finally the filtered audio signal passes through an
output buffer within the ASFIC. The audio signal exits
the ASFIC at RX_AUDIO (U201-J4).

The µP programs the attenuator, using the SPI bus,
based on the volume setting. The minimum /maxi­mum settings of the attenuator are set by codeplug
parameters.

Since sub-audible signalling is summed with voice
information on transmit, it must be separated from the
voice information before processing. Any sub-audible
signalling enters the ASFIC from the IF IC at PLIN
U201-J7. Onceinsideit goes throughthe PL/DPL path.

The signal first passes through oneof2lowpassfilters,
either PL low pass filter or DPL/LST low pass filter.
Either signal is then filtered and goes through a limiter
and exits the ASFIC at PLLIM (U201-A4). At this point
the signal will appear as a square wave version of the
sub-audible signal which the radio received. The
microprocessor, U101-10 willdecodethe signal directly
to determine if it is the tone/code which is currently
active on that mode.

Audio Amplification Speaker (+) Speaker (-)

The ASFIC’s received audio signal output, U201-J4, is
routed through a voltage divider formed by R401 and
R402 to set the correct input level to the audio PA
(U401). This is necessary because the gain of the audio
PA is 46 dB, and the ASFIC output is capable of over­driving the PA unless the maximum volume is limited.

The audio then passes through C401 which provides
AC coupling and lowfrequencyroll-off. C402 provides
high frequency roll-off as the audio signal is routed to
pins 1 and 9 of the audio power amplifier U401.

The outputs of the Audio PA (U401 pins 4 and 6) are
routed to the external speaker via the accessory con­nector (J400-16 EXT SPKR+, and J400-1 EXT SPKR-,
respectively). One terminal of the radio’s internal
speaker (+) is connected to J400-13 (INT SPKR+), and
the other (-) to U401-6. To enable the internal speaker, a
jumper plug is inserted into J400 which connects pins
13 and 16 together. This completes the path between
the audio power amp U401-4 and the internal
speaker’s (+) terminal.

The audio power amplifier has one inverted and one
non-inverted output that produces the differential
audio output OUT1 and OUT2 (U401-4 & 6). The
inputs for each of these amplifiers are pins 1 and 9
respectively; these inputs are both tied to the received
audio. The audio PAs DC bias is not activated until the
audio PA is enabled at pin 8.

The audio PA is enabled via AUDIO_PA_ENABLE sig­nal from the ASFIC (U201-B5). When the base of Q401
is low, the transistor is off and U401-8 is high, using
pull up resistor R406, the audio PA is ON. The U401-8
must be above 8.5VDCtoproperly enable the device.If
the voltage is between 3.3 and 6.4V, the device will be
active but has its input (U401-1/9) off. This is a mute
condition which is not employed in this radio design.
R404 ensures that the base of Q401 is high on power
up. Otherwise there may be an audio pop due to R406
pulling U401-8 high before the software can switch on
Q401.

The audio PA can also be muted externally when in the
Data Modem mode, which is selected by turning
switch S401 (1-3) off. This forces analog switch control
line U402-9 high via R442, changing its state. If J400-12
is pulled low, this is transferred via pins 14 and 1 of
U402 to the base of Q415, turning it on and, in turn,
Q401 on. This pulls U401-B low, muting the audio PA.

The EXT_SPKR+ and EXT_SPKR- outputs of the audio
PA have a DC bias which varies proportionately with
FLT A+ (U401-7). FLTA+of 11V yields DC offset of 5V,
and FLT A+ of 17V yields a DC offset of 8.5V. If either
of these linesisshortedto ground, it is possible thatthe
audio PA will be damaged. The audio PA contains
internal short-circuitprotection,however this situation
should be avoided. EXT_SPKR+ and EXT_SPKR- are

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Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Audio & Signaling Circuits

routed totheaccessoryconnector (J400-16 & 1) and, via
the jumper plug connecting J400-16to13,tothe control
head (connector J101-1 & 2).

Handset Audio

Certain hand-held accessories have a speaker within
them which require a different voltage level than that
provided by U401. For those devices HANDSET
AUDIO is available at control head microphone jack
J903-8.

The receivedaudiofromthe output of the ASFIC’s dig­ital volume attenuator (U201-J4) is also routed to
U202-9 where it is amplified 15 dB; this is set by the
10k/68k combination of R233 and R232. This signal is
routed from the output of the op amp U202- 8 to J101-

14. Thecontrol headsendsthis signal directlyoutto the
microphone jack. The maximum value of this output is

6.6Vp-p.

External Rx Audio

RX Audio is also routed to the accessory connector
J400-11.This audio level is fixed and notaffectedby the
setting of the digital volume attenuator. The source of
this audio is selectable as follows:

In the Data Modem mode (switch S401, 1-3 off), U402­9 is high, and FLAT_ RX_AUDIO, directly from detec­tor U5201-28 via C230 and R236, is routed from U402
pin 10 to pin 5, amplified by U403 and applied to J400­11 via R419 and C419.

In Normal mode (switch S401 1-3 on), U402-9 is low,
and GATED_RX_AUDIO, from ASFIC U201-H5 via

C237 and R235, is routed from U402 pin 6 to pin 5,
amplified by U403 and applied to J0400-11 via R419
and C419. The values of R235 and R236 provide the
correct audio levels for GATED and FLAT_RX
_AUDIO paths, respectively. The GATED_RX_AUDIO
signal is PL-filtered, de-emphasized, and controlled by
the squelchmutegate. The FLAT_ RX_AUDIOsignalis
non-de-emphasized, unmuted, and is flat between

0.6 Hz and 3 kHz. The radio is shipped configured for
Normal mode operation.

Receive Signalling Circuits

Sub-audible Data (PL/DPL) and High Speed Data
Decoder

The ASFIC (U201) is used tofilterandlimitallreceived
data. Thedataenters the ASFIC atU201-J7.Inside U201
the data is filtered according to data type (HS or LS),
then it is limited to a 0-5V digital level. The trunking
high speed data appears at U201-G4, where it connects
to the µP U101-11.

The low speed limited data output (PL, DPL, and LST)
appears at U201-A4, where it connects to the µP U101-

10. While receiving low speed data, the µP may output
a sampling waveform depending on the sampling
technique to U201-C3 between 1 and 2 kHz.

The low speed data is read by the µP at twice the fre­quency of the sampling waveform; a latch configura­tion in the ASFIC stores one bit every clock cycle. The
external capacitors C223, C225, and C226 set the low
frequency pole for a zero crossings detector in the lim-

C3

LOW SPEED
CLOCK

LIMITER

LIMITER

RX LIM
CAP

J3

RX
LIM
OUT

PL
LIM

G4

A4

65

11

MICRO

CONTROLLER

U101

10

DET AUDIO
DISCRIMINATOR AUDIO
FROM RF SECTION
(IFIC)

HIGH SPEED
CLOCK

DATA FILTER

& DEEMPHASIS

J7

PL

IN

LOW SPEED
LIM CAP

G1

ASFIC U201

FILTER

C5

Figure 8-6. Receive Signalling Path

8-14 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual TheoryofOperation

Controller Audio & Signaling Circuits

iters for PL and HS data. The hysteresis of these limit­ers is programmed based on the type of received data.

NOTE

During HS data, the µP may generate a
sampling waveform seen at U0201-G1.

Alert Tone Circuits

When the software determines that it needs to give the
operator an audible feedback (for a good key press, or
for a bad key press), or radio status (trunked system
busy, phone call, circuit failures), it sends an alert tone
to the speaker.

It does so by sending SPI BUS data to U201 which sets
up the audio path to the speaker for alert tones. The
alert tone itself can be generated in one of two ways:
internally by the ASFIC, or externally using the µP and
the ASFIC.

The allowable internal alert tones are 304, 608, 911, and
1823Hz. In this case a code contained within the SPI
BUS load to the ASFICsetsupthepath and determines
the tone frequency, and at what volume level to gener­ate the tone. (It does not have to be related to the voice
volume setting).

For external alert tones, the µP can generate any tone
within the 100-3000Hz audio band. This is accom­plished by the µP generating a square wave which
enters the ASFIC at U201-C3.

Inside the ASFIC, this signal is routed to the alert tone
generator; the output of the generator is summed into
the audio chain just after the RX audio de-emphasis
block. Inside U201 the tone is amplified and filtered,
then passed through the 8-bit digital volume attenua­tor, which is typically loaded with a special value for
alert tone audio.Thetoneexits at U201-J4 and is routed
to the audio PA like receive audio.

Accessory Connector Configurations

The configuration of the pins of accessory connector
J400 can be changed to support different accessories by
changing the settings of dual switch S401.

S401 (pins 2-4) is turned ON if external Ignition Sense
is not used, and turned OFF if an external Ignition
Sense cable is installed. The operation of the Ignition
Sense circuitry is described above in the “Electronic
On/Off” and “Ignition” sections of the Controller
Detailed Functional Description.

S401 (pins 1 and 3) is turned ON to support Remote
Desk Set, Public Address and External Alarm, and is
turned OFF to configure the accessory connector for
External Data Modem applications.

NOTE

The radio is shipped with Ignition Sense
disabled and Remote Desk Set, Public
Address and External Alarm enabled.

Remote Desk Set

For Remote Desk Set applications, switch S401 (1-3)
should be ON. This pulls the analog switchcontrolline
U402-9 low, and the switch positions of U402 are as
shown in the schematic. The PTT signal from the desk
set at U400-3 is routed via U402-4 and 2 and via U203 ­1 and 2 (U203 is ON since pin 4 is high via R433 and
R431) to µPportU101-22.The hook signal at U400-14 is
inverted by Q101 and applied to µP port U101-23.
Transmit audio at U400-2 (EXTERNAL_MIC_ AUDIO)
is connected in parallel with the front panel mic audio
input and applied to ASFIC U201-B8. DC bias required
by microphone is provided by R204 and R205.
GATED_RX_AUDIO which is de-emphasized and
controlled by the squelch mute gate is obtained from
ASFIC U201-H5, buffered and amplified by U403 and
sent to the desk set at J400-11.

Public Address

Public address operation requires an accessory
HLN9322 Public Address Switch Box and one or more
HSN1000 amplified speakers. In the Public Address
mode, the radio functions simply as a junction box
which routes microphone audio from the front panel
connector directlytotheswitchbox via J400-2, where it
is further amplified and routed to the amplified speak­ers. Additionally, the microphonePTTdoes not key the
transmitter, and the microphone off-hook condition is
ignored, appearing to be on-hook.

For Public Address operation, switch S401 (1-3) should
be ON. This pullstheanalogswitch control line U402-9
low, and the switch positions of U402 are as shown in
the schematic. When Public Address mode is turned
on using the Switch Box, the switch box pulls J400-12
low. This signal is passed through switch U402 from
pin 14 to 15, which also goes low. The hook line is
pulled low by D401, forcing the microphone to appear
on-hook. The control line to gate U203-4, normally
high via R433, is pulled low, turning off U203 and pre­venting MIC PTT from being applied to the µP. Thus,
microphone audio is routed to the public address
speakers but the radio does not transmit, and receiver
operation is maintained in the same condition it was
when the microphone was on-hook.

SW_B+ from J400-9 is supplied to the switch box,
where it powers the internal amplifier stages and also
turns on a rely which applies battery voltage to the
external amplified speakers. Thus, when the radio is
turned off, all PA circuits and amplified speakers are
turned off as well.

June, 2000 6880905Z99-O 8-15

Theory of Operation GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Controller Audio & Signaling Circuits

External Alarm

For External Alarm installations, switch S401 (1-3)
should be ON. This pulls the analog switchcontrolline
U402-9 low, and the switch positions of U402 are as
shown in the schematic. When the radio’s alarm mode
is enabled and the proper code has been received,
ASFIC port U201-A3 goes high, turning on Q411 via
U402-(11-13) and R411, saturating Q411 and pulling
J400-4 low.

For External Alarm installations, switch S401 (1-3)
should beOFF. Thispullsthe analog switch controlline
U402-9 high via R442, and the switch positions of U402
are the opposite from those shown in the schematic.

Data Modem

For DataModeminstallations, switch S401 (1-3)should
be OFF. This pulls the analog switch control line U402­9 high and the switch positions of U402 are thrown
opposite of that shown in the schematic.

NOTE

All Data Modem I/O functionsareactive
low, 0 VDC.

The reconfigured pin functions of accessories connec­tor J400 are as follows:

J400-12 is an input to the radio which allows the data
modem to mute the radio’s speaker audio while data
bursts are being received. The modem pulls J400-12
low, which is routed through switch U402 from pin 14
to 1, and turns on Q415 and, therefore, Q401. This pulls
U401-8 low, muting the audio power amplifier.

J400-4 is an output from the radio which tells the
modem that the radio is transmitting by pulling J400-4
low. Two non-simultaneous conditions are summed to

recognize transmit mode under all timing conditions.
If PTT is low, Q410 is off and a high is provided via
R440, D403, U402 pins 12-13, and R411, to turn on Q411
and pull J400-4 low. If the transmit-enable voltage
K9V1_ENABLE is high, a high is provided via D403,
U402 pins 12-13, and R411, to turn on Q411 and pull
J0400-4 low.

J400-15 provides system busy indication by observing
the status of the AUDIO_PA_ENABLE line, which is
low during active receive conditions. This low is pro­vided to J400-15 via D402, indicating a signal is being
received.

J400-3 is DATA_PTT input to the radio, routed via
switch U402 pins 4 to 3, to U101-8. TheASFIC(U201)is
configured for FLAT_TX_AUDIO when DATA_PTT is
asserted at U101--8.

J400-5 provides aFLAT_TX_AUDIO input to the radio,
via C418 and gain-reduction buffer U202 (pins 1, 2, 3),
to U201-D7. This connection is always provided and is
not reconfigured by the setting of switch S401 (1-3).

J400-11 provides a Flat/Unmuted RX Audio Output
from the radio. This audio is obtained directly from
detector U5201-28 via C230 and R236, is routed from
U402 pin 10 to pin 5, amplified by U403 and applied to
J400-11 via R419 and C419.

RSSI Buffer

For special applications, a DC voltage proportional to
received signal strength can be provided to J400-15.
This requires removal of resistor R430 and diode D402,
and insertion of resistor R215. The DC signal-strength
voltage is provided by detector U5201-11, buffered by
U202 (pins 12, 13, 14), and routed via R215 to J400-15.

8-16 6880905Z99-O June, 2000

Overview

This section contains six troubleshooting tables for the
following GTX components:

• Receiver

• Synthesizer

• 15W/35W Power Amplifier

• Controller

• Control Head

Troubleshooting Charts

Section 9

Troubleshooting

Refer to following pages.

June, 2000 6880905Z99-O 9-1

Troubleshooting GTX LTR/Privacy Plus 800 MHz Mobile Service Manual

f

Troubleshooting Charts

Start

Yes

Check
controller
circuit.

NOTE:

RF input level is -47dBm.
All the levels indicated have

a tolerance of 10%.

Is DET_AUDIO

AC level

0.2Vrms,
1KHz?

No

Is

RF_REG_5V

present at

Q5230-E?

Yes

Is K9.1 0V
at Q742-C?

Yes

Check RX_IN

level.

>-50dBm

Check LO_INJ

level.

>0dBm

Check IF

level

on L5401.

No

No

<-

50dBm

<0dBm

<-35dBm>-35dBm

Check
DC circuit.

Check
logic circuit.

Check
Rx/Tx switch.

Check
synthesizer
Circuit.

Yes

Is <-35dBm

present on

Y5201-3?

Is <-20dBm

prsent on

Y5202-1?

Is <-22dBm

present on

Y5202-3?

Check
Y5201.

Check
Q5201.

Check
Y5202.

Yes

Yes

Troubleshooting Flow Chart

or Receiver

No

Yes

Replace
Q5301.

Yes

present across

R5302?

Is DC

No

Replace
R5302.

No

Is <-38dBm

present at

No

Is <-48dBm,

Yes No

45.1MHz, present
at U5211-5?

No

B

Replace
U5211.

FL5204?

End

9-2 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Troubleshooting

Troubleshooting Charts

B

Start

>-18DBM >-18DBM

Check RF level

at C5208.

Check RF &

IF circuit.

Check 9.3 VDC at

U5201-13.

Check 5V DC at

C5251.

Check ADAPT

at U5201-22.

9.3 VDV

5V

0 VDC

<9 VDC

<4.7 VDC

>1 VDC

Check DC
circuit.

Check

DC circuit.

Check
control circuit.

-3dBm & 2dB
DIFFERENCE
BETWEEN
IN & OUT

-13dBm & 2dB
DIFFERENCE
BETWEEN
IN & OUT

-3dBm 2dB
DIFFERENCE
BETWEEN
IN & OUT

Is RF level

on Y5213 at

44.645MHz?

Yes

Is RF level

on FL5201 IN & OUT

at 455KHz?

Yes

Is RF level

on FL5202 IN & OUT

at 455KHz?

Yes

Check

U5201.

No

No

No

Check

Y5213

circuit.

Check FL5201
circuit.

Check FL5202

circuit.

Troubleshooting Flow Chart

for Receiver (cont.)

June, 2000 6880905Z99-O 9-3

Troubleshooting GTX LTR/Privacy Plus 800 MHz Mobile Service Manual

f

Troubleshooting Charts

SYNTHESIZER DEVIATION

Start

Controller

No

SYNTHESIZER PENDULUM

Is MOD_IN

present

at C5700?

Yes

Is there

212mV on

C5750?

Yes

Check synthesizer
loop filter.

Start

Is 2.1 MHz

present

at R5731?

No

Yes

No

Replace U5702.

Replace R5731.

Replace U5700.

Check C5738, C5724,
C5713 and L5709.

Yes

No

Is 16.8 MHz

present

at U5700-10?

No

Is 5V present

at U5700-13?

No

Is 5V present

at L5700?

No

Is 5V present

at U5703-2?

No

Is 9.3V

present

at U5703-1?

Yes

Yes

Yes

Yes

Is 16.8MHz

present

at U5700-10?

Yes

Replace U5702.

Replace L5700.

Check L5704.

Replace U5703.

No

Check C5733
and R5715.

Troubleshooting Flow Chart

or Synthesizer

9-4 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Troubleshooting

Troubleshooting Charts

NO Tx INJECTION

Start

Is 5V present

at Q5707-C?

Yes

Is 2.1 MHz

present

at R5731?

Yes

Check RF path
line-up.

No

No

Check Q5707
DC circuit.

Check Q5701 and
Q5705 DC circuits.

Troubleshooting Flow Chart

for Synthesizer (cont.)

June, 2000 6880905Z99-O 9-5

Troubleshooting GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Troubleshooting Charts

START

Go to synthesizer
troubleshooting.

15 W PA RF SECTION FAULT

Check CR6501, Q6506,
Q6501, L6503, L6502.

Check U6502, R6520,
L6519, L6504 ,L6505,
L6506,VR6501.

Replace U6501.

Check CR6502, CR6503,
CR6504, R6538, R6539,
R6537.

Check L6512, L6513,
C6543.

No

Is TX_INJ

> 2 dBm?

Yes

Is RF at
U6501
~4 dBm?

Yes

Are voltages

at U6501*

Yes

No

at U6501

output ~24 dBm?

Yes

No

Is RF after
Tx switch

at ~24 dBm?

Yes

Is RF after

No

Harmonic Filter

at ~23 dBm?

Yes

Replace Antenna
connector.

OK?

Is RF

No

Is PA control

at ~0V?

Yes

Yes

Is there 5V at

PA_ENABLE?

No

Is

there ~2V

at U702-2

PA_PWR_SET

?

Yes

Is there ~ 0V at

U701-7?

Yes

Is

U701-14

at <4.5V?

Yes

Is

U701-1

at <4.5V?

Yes

Is

U701-10

~4.6V?

Yes

Faulty integrator.
Replace U701.

Is Red LED on?

Yes

Yes

Go to controller
troubleshooting.

PA LOGIC SECTION FAULT

NoNo

Faulty power setting DAC

or software

Faulty coupler.

NoNo

Check CR6509, R6515,
CR6506, R6514, L6516,
R6512.

Check R6519, U701,

No

L6515, R725, R0721,
R722, R723.

Faulty current sense

No

mechanism. Check
R6520, U701 DAC
(U702-11).

Faulty REF voltage.

No

Check R251, R252,
U251.

No

Is control head

OK?

Yes

Is K9.1 OK?

Go to

No

control head
troubleshooting.

No No

Is there

5V at

K9.1_ENB?

Yes

Is there

9.3V at Q741
or Q742?

Yes

Go to
synthesizer
troubleshooting.

Levels were measured with an
RF probe in series with 0.5pF
capacitor.

Go to controller
troubleshooting.

No

Replace
Q741 and Q742.

*U6501 DC voltages:
Pins 3 and 4: A+ +/10.1V
Pin 2: 9.1V (during Tx only)

Troubleshooting Flow Chart
for 15 W Power Amplifier

9-6 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Troubleshooting

Troubleshooting Charts

START

Go to synthesizer
troubleshooting.

35 W PA RF SECTION FAULT

Check CR6501, Q6506,
Q6501, L6503, L6502.

Check U6502, R6520,
L6519, L6504 ,L6505,
L6506,VR6501.

Replace U6501.

Check C6555, CR6502,
CR6503, Q6505

Check H6502. L2,L3,L4.
.

No

Is TX_INJ

> 2 dBm?

Yes

Is RF at
U6501
~2 dBm?

Yes

Are voltages

at U6501*

Yes

Is RF

No

at U6501

output ~24 dBm?

Yes

No

Is RF after
Tx switch

at ~24 dBm?

Yes

Is RF after

No

Harmonic Filter

at ~29 dBm?

Yes

Replace Antenna
connector.

OK?

No

Is PA control

at ~0V?

Yes

Yes

Is there 5V at

PA_ENABLE?

No

Is
there ~2V
at U702-2

PA_PWR_SET

?

Yes

Is there ~ 0V at

U701-7?

Yes

Is

U701-14

at <4.5V?

Yes

Is

U701-1

at <4.5V?

Yes

Is

U701-10

~4.6V?

Yes

Faulty integrator.
Replace U701.

Is Red LED on?

Yes

Yes

Go to controller
troubleshooting.

PA LOGIC SECTION FAULT

NoNo

Faulty power setting DAC

or software

Faulty coupler.

NoNo

Check CR6509, R6515,
CR6506, R6514, L6516,
R6512.

Check R6519, U701,

No

L6515, R725, R0721,
R722, R723.

Faulty current sense

No

mechanism. Check
R6520, U701 DAC
(U702-11).

Faulty REF voltage.

No

Check R251, R252,
U251.

No

Is control head

OK?

Yes

Is K9.1 OK?

Go to

No

control head
troubleshooting.

No No

Is there

5V at

K9.1_ENB?

Yes

Is there

9.3V at Q741
or Q742?

Yes

Go to
synthesizer
troubleshooting.

Levels were measured with an
RF probe in series with 0.5pF
capacitor.

Go to controller
troubleshooting.

No

Replace
Q741 and Q742.

*U6501 DC voltages:
Pins 3 and 4: A+ +/10.1V
Pin 2: 9.1V (during Tx only)

Troubleshooting Flow Chart

for 35 W Power Amplifier

June, 2000 6880905Z99-O 9-7

Troubleshooting GTX LTR/Privacy Plus 800 MHz Mobile Service Manual

f

Troubleshooting Charts

Start

Apply power to radio and

turn on.

No/Don’t

know

Use RSS to enable tones.

Yes

Are alert tones

enabled with RSS?

No

Check radio con­nection to RIB and
computer.

No

RIB/radio

connections OK?

Are alert tones

enabled with RSS?

Yes

No

Was good or bad power-on

beep present?

Was good power-on beep

present?

End

Yes

No

Yes

Main radio board must be
replaced.

Reprogram radio with
RSS. Apply power to
radio and turn on.

No

Was good power­on beep present?

Done

Yes

Yes

With power connected to radio and the radio turned
on, check the following:

1) 5 V at pin 1 of U631 and pin 71,12,31,41 of U101.

2) Check for 14.7456 MHz at pin 73 of U101.

3) Check DC at pin 75 of U101. If < 4.5V DC check
C202 for 2.1 MHz signal.

4) Check for typical voltages of U101 and U201.

No

Are tones present

on power up at

U202, pin 8?

Audio problem. Trouble-

shoot audio circuitry.

Done

Yes

Done

Troubleshooting Flow Chart

or Controller

9-8 6880905Z99-O June, 2000

GTX LTR/Privacy Plus 800 MHz Mobile Service Manual Troubleshooting

Troubleshooting Charts

Start

Check U941, Q951,
Q952,D951-D970.

Check R915-922,
R955, and R958.

No

Is backlight OK?

No

Is the display

on?

Yes

Do the LEDs

light?

Yes

Yes

Is volume OK?

Yes

Is keypad

OK?

No

No

Is SPI

communication

OK?

Check U941,
Q942-4,
D942-4.

No

Check U942, and U970.

No

Yes

Check LCD, U932,
Q953, and ZEBRA
connectors.

Check controller.

End

Yes

Troubleshooting Flow Chart

for Control Head

June, 2000 6880905Z99-O 9-9

Troubleshooting GTX LTR/Privacy Plus 800 MHz Mobile Service Manual
Troubleshooting Charts

9-10 6880905Z99-O June, 2000

CONTROLLER

LOCK_DET

PEND_CE

ADAPT

MOD_IN

SPI_CLK

RSSI

DET_AUDIO

SPI_DATA

2_1MHZ

FRACN_CE

DAC_CE

VAG

FLT_A+

SW_B+

TEMP

K9V1_ENABLE

SPI_CLCK_SRC

PA_ENABLE

SPI_DATA_SRC

9V3

PA_CNTR

9V3

CURRENT_SENSE+

CURRENT_SENSE-

DAC_CE

K9.1_ENABLE

PA_ENABLE

PA_TEMP

SPI_CLCK_SRC

SPI_DATA_SRC

SW_B+

VAG

VFORWARD

K9.1

PA_CNTRL

TEMP

SYNTH

9V3

2.1MHZ

K9.1

LO_INJ

MOD_IN

RF_REG_5V

PEND_SEL

SPI_CLK

SPI_DATA

SYNT_LOCK

SYNT_SEL

TX_INJ

PA

FLT_A+

CURRENT_SENSE-

PA_TEMP

CURRENT_SENSE+

RX_IN

PA_CNTRL

RX

9V3

ADAPT

K9.1

DET_AUDIO

LO_INJ

RF_REG_5V

RX_IN

K9.1

PA_K9.1

TX_INJVFORWARD

PA_K9.1

RSSI

Schematic Diagram for HLF9005A, HLF9006A,

HLF9007A & HLF9008A Main Boards,

Radio Block Diagram Section

June, 2000 6880905Z99-O 1

LO_INJ

9V3

RF_REG_5V

K9.1

RX_IN

9V3

RF_REG_5V

K9.1

IN OUT

FL5203

860MHz

CASE

RF_REG_5V

K9.1

5R

R5311

13K

C5321

39PF

C5326

0.01UF

R5302

220

LNA SHIELD

Q5230

MIXER SHIELD

R5230

47K

5R

FL5201

1

455KHz

IN

OUT

3

1

GND

2

FL5202

455KHz

IN

OUT

3

GND

2

R5325

C5323

0.01UF

R5312

C5308

6.8pF

3

D5303

1

2

13K

L5321

4.2NH

220

C5325

0.01UF

L5322

68NH

C5322R5321
39PF

L5302

6.8n

Q5301

C5312

3pF

R5306

150

C5324

0.01UF

C5310

39PF

R5323

300

C5311

0.01UF

FL5204
860MHz

IN OUT

CASE

390

R5322

R5324

390

C5224

K9.1

10

1500PF

C5231

R5240

100

PA_K9.1

DET_AUDIO

0.47UF

3

4

36

MIXER_OUT

2.5V_REG

5V_REG

2

35

LIM_IN

IF_AMP_IN

IF_AMP_OUT

U5201

IFIC

5V_REG1125V_REG2175V_REG3

1

34

U5211

3

MIXER

RF

6

LO

1

GND14GND25GND3

L5401

2

IF

C5223

R5326

0.1UF

RF_REG_5V

R5327

0NU

0

R5328

0NU

C5213

36PF

C5214

3.9PF

R5212

5.6K

9V3

6

PREAMP_IN

5

PREAMP_OUT

8

MIXER_IN

7

LO_IN

10

OSC_OUT

9

OSC_FB

27

T_R

13

B+

14

DRIVE

21

29

33

32

31

R5241

GND

AUDIO_IN

DEMOD_OUT

DEMOD_FILT

DEMODE_FILT

ICO_TUNE

SQ_LIM_IN

SQ_TAIL_TC

RIPPLE_FILT

24

16

19

26

AUDIO_OUT

RSSI_OUT

RSSI_BYP

SQ_LIM_OUT
SQ_RECT_IN

ADAPT

SQ_OUT

CHAN_DET

SQ_NOISE

28

11
25

23
20
22
15
18
30

R5223

7.5K

C5235

39PF

0

C5239

39PF

RSSI

ADAPT

C5234

0.1UF

0.47M

C5204

0.1UF
R5205

IF AMP SHIELD

C5200

22PF

R5401

51

C5227

4.7UF

R5204

100

2K

C5404

27PF

L5402

0.47M

5R

C5212

13PF

R5224

13K

C5229

39PF

C5236

39PF

C5233

39PF

C5237

39PF

C5228

0.1UF

R5202

33K

C5203

Y5201

45.1MHz 45.1MHz

C5202

0.1UF

R5203

6.8K

IN OUT

GND

L5201

1200NH

C5201

3PF

15PF

R5201

13K

Schematic Diagram for HLF9005A, HLF9006A,
HLF9007A & HLF9008A Main Boards,
Receiver Section

2 6880905Z99-O June, 2000

Q5201

C5206

R5211

820

R5231

C5205

20PF

L5202

.00

.00H

0NU

Y5202

IN OUT

GND

R5207

0

L5203

1.0UH

C5207

C5208

3

0.1UF

.00

D5201

1

2

44.6450M

C5211

16PF

L5211

1200NH

Y5211

RF_REG_5V

C5251

10UF

C5252

0.1UF

C5226

.039UF

R5221

130K

C5225

3.3UF

SH5201
SHIELD

SH5202
SHIELD

SH5203
SHIELD

SYNT_LOCK

SPI_CLK

SPI_DATA

SYNT_SEL

MOD_IN

PEND_SEL

2.1MHZ

RF_REG_5V

9V3

NC

L5709

560NH

C5769
39PF

C5743

22NF

29

28
27
26
25
24
23
22
21

C5738

N.C.
N.C.
N.C.

YSSD|YSSA

S1
SS
CE
SCK

S0

22NF

C5811

39pF

31N.C.

30

N.C.

U5700

PENDULLUM

N.C.20N.C.

19

9.3V

C5724

0.1UF

C5763

39PF

C5766

39PF

R5716

R5734

C5764

39PF

C5767

39PF

2K

51

C5797

0.1UF

MIMIC

4

AUX_IN

4

AUX_IN

E5700

SHIELD

U5704

3

+V

AUX_OUT

GND

5

U5705

3

+V

AUX_OUT

GND

5

R5717

2K

C5745

10NF

C5736

NU

C5798

0.1UF

2

1

NC

NC

2

1

NC

NC

C5799

0.1UF

E5703

SHIELD

SW_RX

C5741

22NF

SW_TX

C5742

22NF

C5746

10NF

E5702

SHIELD

SWITCHLINE UP VCO

C5765

C5768
39PF

C5747

10NF

39PF

8V5

L5707

1.0UH

C5716

4.7uF

C5744

10NF

E5701
SHIELD

L5702

1.0UH

C5795
100PF

L5701

1.0UH

E5704

SHIELD

CR5702

CR5701

C5794
39PF

C5790

3.9PF

C5782

4.3PF

GND

GND

IN

OUT

IN

OUT

U5707
M_LIN

U5706
M_LIN

C5791

1PF

C5703

1.8pF

C5783

C5704

2.4pF

1PF

R5747

6.8K

R5746

10K

R5742

6.8K

R5743

10K

C5727

0.1UF

5V_REG

C5728

C5796

0.1UF

0.1UF

R5711

C5729

0.1UF

Q5700

5V_REG

VCP

GND2

IOUT

TEST1

31

29
28
27
26
25

NC

C5806

0.1UF

C5762

39PF

C5737

22NF

32

30

NC

R5709

R5708

200K

200K

5V_REG

8V5

5V_REG

C5732

22NF

C5717

4.7uF

R5700

2.2K
R5707

3.3K

C5720

0.1UF

C5700

9.3V

C5718

4.7UF

C5721

0.1UF

22NF

1

4

2

5

7

6

CLK

CEX

MODIN

U5702

SUPFCAP

SUPFOUT

18

19

DATA

PREIN

SUPIN

20

GND4

21

3

DC5V3

DC5V123DC5V2

GND1

22

C5805

0.1UF

AUX3

LOCK

IADAPT

MODOUT
CPB|AS1

CPB|AS2

TEST2

24

8

9

VMULT2

10

VMULT1

11

FREFOUT

12

DC5V

QFP_FRACTIONAL_N

13

GND

14

XTAL1

15

NC

XTAL2

16

NC

WARP

17

C5712

10UF

5V_REG

L5700

1.0UH

C5753

39PF

5V_REG

C5754

39PF

C5714

4.7uF

C5722

0.1UF

32N.C.

1N.C.

3N.C.

4N.C.

C_EXT

F_OUT
V_REG
V_OPT

VDD

14

N.C.
N.C.

DET

VDD

10UF

DE

5
6
7
8

9
10
11
12
13

U5703

I1O

GND
3

22NF

C5739

22NF

C5752

39PF

R5731

100

L5704

1.0UH

C5734

2

C5725

0.1UF

N.C. 2

N.C.

N.C.16N.C.17N.C.

18

15

TRIPLE_DIODE

16

C5802

C5751

33NF

CR5700

C5755

39PF

0.1UF

C5740

22NF

25

C5756

39PF

C5803

0.1UF

R5715

2.2K

5V SQ WAVE (1.05MHz)

C5735
22NF

C5758C5713

39PF

34

C5733

22NF

12-13.5V DC

C5723

0.1UF

5V_REG

C5804

0.1UF

C5757

39PF

4.7K

C5749

NU

C5750

1.200N

R5739

C5793

2.7PF

C5792

2.7PF

R5740

C5785

2.7PF

C5784

2.7PF

SW_RX

51

SW_TX

51

Q5706

R5745

R5744

180

Q5704

180

C5772

39PF

C5709
100PF

C5710
100PF

Q5703

R5702

0NU

C5789

2.4PF

C5788
100PF

R5701

0NU

C5787
100PF

C5786

2.4PF

C5701

0.1UF

C5702

R5728

0.1UF

330

R5710

8V5

10K

C5705

39PF

C5707

39PF

C5771

39PF

R5718

1.5K

C5773

39PF

R5732

100

R5735

51

R5705

10K

R5703

10K

R5733

100

8V5

R5704

L5703

1.0UH

C5711
100PF

330

C5706

39PF

C5770

39PF

Q5702

R5706

510

R5736

51

R5729

150

C5708
39PF

R5748

R5741

10

C5810

R5751

2.7K

22

39PF

5V_REG

8

INPUT1OUTPUT

GND14GND26GND37GND4

GND

2

3

R5750

2.7K

C5813

39PF

150NH

U5701

VCC

L5705

5

R5754

330

Q5707

R5753

33

R5737

C5775

39PF

R5752

330

L5706

150NH

C5759

39PF

22

C5814

39PF

R5738

22

C5719

4.7uF

C5760

39PF

R5712

R5755

22

R5756

270

C5761

39PF

4.7K

C5778

39PF

R5719

0NU

R5713

R5757

C5726

0.1UF

4.7K

C5779

39PF

270

R5720

0NU

C5715

4.7uF

R5721 R5722

0NU

0NU

Q5701

R5714

2.7K

C5776

39PF

L5708

150NH

C5731

0.1UF

R5723

0NU

Q5705

R5724

C5730

0.1UF

510

C5748

0.01UF

R5725

510

R5726

510

C5774

39PF

R5727

510

LO_INJ

K9.1

TX_INJ

Schematic Diagram for HLF9005A, HLF9006A,

HLF9007A & HLF9008A Main Boards,

Synthesizer Section

June, 2000 6880905Z99-O 3

PA_CNTRL

TX_INJ

K9.1

L6517

68nH

R6527

C6532

39PF

560

R6526

10

R6523

1.5K
R6524

1.5K
R6525

1.5K

C6533

39PF

C6520

2.7pF

R6528

560

21

CR6501

3

C6550

0.1UF

C6549

L6501

68nH

C6503

39PF

L6507

2.5nH

R6540

75

0.1UF

C6505

39PF

C6501

L6503

68nH

CC

MRF8372

B

B

Q6501

E EEE

0.1UF

L6502

7.66NH

C6506

39PF

R6505

10

R6504

U6501
XHW2821

1

RF_INPUT

RF_OUTPUT

3

+DC|SUP.

4

+DC|SUPP.

GND7GND1

6

R6506

560

560

C6508

0.01UF

C6511

0.1UF

C6514

1UF

L6504

C6517

C6509

0.01UF

C6512

0.1UF

C6515

1UF

L6505

+DC|BIAS

L6506

C6510

0.01UF

C6513

0.1UF

C6516

1UF

5

2

C6518

C6563

6.8pF

Q6506

C6507

0.1UF

C6502

2.4pF

R6503

NC

10

SYMBOL ENDING IN ’NP’: UNPLACED COMPONENT

L6513

4.2NH

.01uF

Q6505

C6565C6538

0.1uF

C6568

18pF

C6567

18pF

R6532

100K

R6509

100K
C6554

39pF

R6508

C6553

4.7

1uF

C6541

10pF

C6542

10pF

C6564

1000pF

L6521

3.85nH

C6540NP

C6539

15pF

.00

C6552

1uF

H6501
04H03

1

IN2OUT

GND

3

C6566

0.1uF

L6508
57R01

C6548

.01uF

C6544

C6525

L6512

23.75NH

22

1000PF

L6522

82nH

C6522

39pF
C6551

.01uF

CR6502

MA4P1250

R6530R6531

39

C6526

39PF

H6502
07L01

1

C6545

C6546

.01uF 0.1uF

RFOUT

GND6RCVR

SWDC

VFRWD

5

42

LAMBDA/4 Line

C6529

39PF

3

CR6503

MA4P1250

R6514
100K

C6555

130pF

1pF

L6509

82nH

L6510
57R01

C6519

39pF

PA_K9.1

This inductor (L6520) is to prevent build-up
of electro-static charge at the output.

L6523

82nH

L6516

68nH

NC

12

CR6509

3

R6515

3.3K

L6511

68nH

C6523

10pF

C6535

39PF

J6501

ANTENNA CONNECTOR

VFORWARD

RX_IN

L6514

68nH

39PF

C6571

39PF

C6569

0.1UF

CR6508

24V

L6518
57R01

L6519
57R01

R6519

47K

L6515

68nH

C6534

2

1

R6520

1.639m

3

4

C6537

39PF

CURRENT_SENSE-

PA_TEMP

39PF

CURRENT_SENSE+

C6570

39pF

SH6501
SHIELD

1

39PF

C6524
.022uF

NC

VR6501

12V

R6555

220

3

U6502

+V

2

AUX_OUT

1

NC

NC

GND

5

AUX_IN

4

Schematic Diagram for HLF9005A & HLF9006A Main Boards,
Power Amplifier Section

4 6880905Z99-O June, 2000

Power Connector

FLT_A+

VAG

VFORWARD

R705

560

C702

39PF

C701

39PF

R702

2.4K

6

5

SW_B+

SW_B+

C727

C714

R711

4

7

11

U701

LM2902

22K

R704

22K

C703
39PF

C711

0.1uF

10

.00
R712

0

SW_B+

9

4

8

U701

11

LM2902

R713

510

PA_CNTRL

C712

0.1uF

SW_B+

TEMP

9V3

PA_TEMP

SPI_DATA_SRC

DAC_CE

SPI_CLCK_SRC

R725

10K

C725
39PF

R721

5.6K

R722

22K

9V3

C724

0.1uF

R727

22K

C722
39PF

R723

100K

12

13

VAG

0.1uF

R726

10K

4

11

LM2902

U701

R706

100K

C726
39PF

CR721

R724

14

3.3K

NC
NC

1

6

10

8
9

C731

0.1uF

DIN

ENABLE_

CLOCK

NC1
NC2

9V3

16

VDD

VSS

7

PA_PWR_SET

U702
MC144111

Q1-OUT
Q2-OUT
Q3-OUT
Q4-OUT

R1-OUT
R2-OUT
R3-OUT
R4-OUT

DOUT

C723
39PF

R714

100

2

4
11
13

3

5
12
14

15

NC

NC
NC
NC
NC

NC

R703

22K

R728

100K

U701

LM2902

R732

4.7K

R729

100K

SW_B+

R733

4.7K

2

3

4

1

11

R740

2.2K

R730

100K

R731
100K

R734

4.7K

C713
39PF

R717

10K

R716

10K

R718

10.0K

R720

10.0K

R719

1K

R715

1K

CURRENT_SENSE-

CURRENT_SENSE+

PA_ENABLE

K9.1_ENABLE

Q741

R736

4.7K

R741

1.5K

R742

1.5K

9V3

R743

Q742

C741

1K

39PF

R737

4.7K

Q731

K9.1

Schematic Diagram for HLF9005A & HLF9006A Main Boards,

Power Control Section

June, 2000 6880905Z99-O 5

PA_CNTRL

TX_INJ

K9.1

C6532

39PF

L6517

68nH

R6523

1.5K
R6524

1.5K
R6525

1.5K

C6533

39PF

R6526

10

560

R6528

R6503

10

CR6501

3

R6527

21

560

C6549

0.1UF

Q6506

C6507

0.1UF

B

B

L6503

68nH

CC

E EEE

C6550

0.1UF

C6505

39PF

Coplanar Match

L6501

68nH

NC

C6503

39PF

C6502

5.6PF

Q6501

MRF8372

C6501

0.1UF

L6502

7.66NH

C6506

39PF

R6506

22

R6502

22

R6504

510

C6508

0.01UF

C6511

0.1UF

C6514

1UF

L6504

C6517

39PF

R6505

U6501

XHW2821

1

RF_INPUT

+DC|SUP.
+DC|SUPP.

C6509

0.01UF

C6512

0.1UF

C6515

1UF

L6505

RF_OUTPUT

GND6GND1

3
4

1K

+DC|BIAS

7

L6506

C6518

39PF

C6510

0.01UF

C6513

0.1UF

C6516

1UF

5

2

L6507

82nH

12

R6539

47

CR6508

C6519

39PF

C6536

39pF

R6520

1.639m

R6538

L6519

47

L6508

23.75NH

C6560

20pF

CR6502

MA4P1250

C6525

1000PF

C6562

4.7pF

1

2

J6502

POWER CONNECTOR

FLT_A+

CURRENT_SENSE+

(+)

(-)

C6551

C6542

LAMBDA/4 Line

CR6503

MA4P1250

LAMBDA/4 Line

1.5pF

1.8PF

L6511

68nH

R6537

L6513

7.66NH

47

C6553

3.3PF

C6540

3.9pF

C6523

L6518

7.66NH

18PF

C6552

1.5pF

C6541

1.8PF

C6529

39PF

C6543

39PF

100

R6515

3.3K

2

CR6509

3

This inductor (L6520) is to prevent build-up

of electro-static charge at the output.

Microstrip Coupler

R6531R6532

100

NC

CR6506

C6526

10PF

R6514

3.3K

L6516

R6519

47K

68nH

L6515

68nH

NC

1

R6512

100

J6501
ANTENNA CONNECTOR

L6520

82nH

C6535

39PF

C6534

39PF

VFORWARD

PA_TEMP

Schematic Diagram for HLF9007A & HLF9008A Main Boards,
Power Amplifier Section

6 6880905Z99-O June, 2000

C6524

22NF

3

4

CURRENT_SENSE-

C6527

RX_IN

39PF

PA_K9.1

C6544

0.1UF

C6537

39PF

CR6504

C6520

12PF

L6509

68nH

C6545

39PF

C6546

0.1UF

2

1

VR6501

3

+V

AUX_OUT

AUX_IN

NC

GND

5

12V

U6502

R6555

220

4

L6514

68nH

C6538

39PF

NC

NC

C

VAG

VFORWARD

SW_B+

9V3

PA_TEMP

SPI_DATA_SRC

DAC_CE

SPI_CLCK_SRC

714

R711

U701

14

22K

R704

22K

C726
39PF

R724

3.3K

C703

39PF

CR721

9V3

C731

PA_PWR_SET

0.1uF

1

DIN

6

ENABLE_

10

CLOCK

8

NC
NC

NC1

9

NC2

VDD

VSS

U702
MC144111

16

Q1-OUT
Q2-OUT
Q3-OUT
Q4-OUT

R1-OUT
R2-OUT
R3-OUT
R4-OUT

DOUT

7

R705

3.3K
C702

39PF

C725

39PF

C701
39PF

R721

5.6K

R722

22K

9V3

R725

10K

R702

22K

R727

C724

22K0.1uF

C722
39PF

R723

100K

6

5

SW_B+

SW_B+

4

7

11

C727

0.1uF

R726

10K

VAG

4

11

LM2902
U701

12

13

C723
39PF

R714

2

4
11
13

3

5
12
14

15

100

C711

22NF

R706

200K

NC

NC
NC
NC
NC

NC

39PF
R712

2.2K

SW_B+

9

4

11LM2902

R703

22K

8

U701

LM2902

LM2902

10

R728

100K

U701

R732

4.7K

R713

510

SW_B+

4

1

11

R740

2.2K

R729

100K

R733

4.7K

C712

0.1uF

R718

10.0K

R717

R730

100K

R731

100K

R734

4.7K

C713
39PF

3.74K

R716

3.74K

2

3

R720

10.0K

R719

1K

R715

1K

PA_CNTRL

CURRENT_SENSE-TEMP

CURRENT_SENSE+

PA_ENABLE

K9.1_ENABLE

Q741

R736

4.7K

R741

1.5K

R742

1.5K

9V3

R743

Q742

C741

1K

39PF

R737

4.7K

Q731

K9.1

Schematic Diagram for HLF9007A & HLF9008A Main Boards,

Power Control Section

June, 2000 6880905Z99-O 7

SPI_DATA

LOCK_DET

PEND_CE

ADAPT

MOD_IN

SPI_CLK

2_1MHZ

DET_AUDIO

RSSI

FRACN_CE

SPI_DATA

LOCK_DET

PEND_CE

ADAPT

MOD_IN

SPI_CLK

2_1MHZ

DET_AUDIO

RSSI

FRACN_CE

ON_OFF_CONTROL

B+_CONTROL

RESET

BATTERY_VOLTAGE

+5V

USW_+5V_CL

9V3

AUDIO_&_DIGITAL

SPI_DATA_SRC

K9V1_ENABLE

SPI_CLCK_SRC

PA_ENABLE

TEMP

VAG

DAC_CE

FLAT_RX_AUDIO

FAST_OFF_IGN

VPP

SCI_TX

INT_SPKR+

INT_SPKR-

EXTERNAL_ALARM

BUS+

PUBLIC_ADDRESS

DATA_PTT

MIC

FLAT_TX_AUDIOFLT_A+

GATED_RX_AUDIO

HOOK_RSS

PTT

RSSI_BUF

RX_AUDIO

AUDIO_PA_ENABLE SW_B+

IGNITION_SENSE

FLAT_RX_AUDIO

FAST_OFF_IGN

VPP

K9V1_ENABLE

SCI_TX

INT_SPKR+

INT_SPKR-

EXTERNAL_ALARM

BUS+

PUBLIC_ADDRESS

DATA_PTT

MIC

FLAT_TX_AUDIO

GATED_RX_AUDIO

HOOK_RSS

PTT

RSSI_BUF

RX_AUDIO

AUDIO_PA_ENABLE

IGNITION_CONTROLIGNITION_SENSE

VAG

B+_CONTROL

9V3

+5V

FLT_A+

SW_B+

SPI_DATA_SRC

K9V1_ENABLE

SPI_CLCK_SRC

PA_ENABLE

TEMP

VAG

DAC_CE

9V3

FLT_A+

AUDIO_PA_&_I/O

Schematic Diagram for HLF9005A, HLF9006A,
HLF9007A & HLF9008A Main Boards,
Controller Block Diagram

8 6880905Z99-O June, 2000

SUPPLY_VOLTAGE

USW_+5V_CL

+5V

BATTERY_VOLTAGE FLT_A+

RESET

ON_OFF_CONTROL

IGNITION_CONTROL

SW_B+

9V3B+_CONTROL

ON_OFF_CONTROL

HANDSET_AUDIO

ANALOG_1
ANALOG_2
ANALOG_3

INT_SPKR+

INT_SPKR-

SPI_CLCK_BUF

SPI_DATA_BUF

LCD_CE_BUF

HOOK_RSS

HOOK_RSS

VPP

USW_+5V_CL

BUS+

DATA_PTT

SCI_TX

SCI_RSS

MIC

FLAT_TX_AUDIO

DET_AUDIO

RSSI

RSSI_BUF

+5V

FLT_A+

BUS+

PTT

MIC

LED_CE

GND

+5V

U203

5

12

CNTL
4

3

C100
39PF

SQDET

Q103

AN_3_OFF

R100 R103

4.7K

BATTERY_VOLTAGE

R113
33K

R114
68K

R215

R210

0NU

1K

+5V

R101
200K

C101

0.1uF

TEMP

IGNITION_SENSE

RESET

+5V

R115

10K

R143

0NU

9V3

C251

0.1uF

4

14

U202

11

R209

10K

C102

0.1uF

RSSI

13

12

R102
200K

C108

.001uF

+5V

200K

C103

0.1uF

R116

10K

2_1MHZ

R208

10K

+5V

K9V1_ENABLE
PA_ENABLE

VAG

+5V

9V3

SPI_CLCK_SRC
SPI_DATA_SRC
SPI_DATA

SPI_CLK
DAC_CE
FRACN_CE
PEND_CE

LCD_CE

ADAPT
FAST_OFF_IGN
GATED_RX_AUDIO
RX_AUDIO
MOD_IN
AUDIO_PA_ENABLE
EXTERNAL_ALARM
B+_CONTROL

FLAT_RX_AUDIO

R110

R109

270

270

C104

C113 .01uF

C110

0
1
2

C109

39pF

C114

39pF

C105 3.3uF

+5V

R108

R107

2.2K

3
4
5
6
7

R127

10K

4.7K

+5V

R112

4.7K

D101

61
30
75

33
77

0
1
2
3
4
5
6
7
8
9
10
11
12
13

NC

NC

R121

4.7K

R145

10K

+5V

C202

470pF

C201

39PF

C212

R207

22K

0.1uF

C206

0.1uF

R203

10K

C208

330pF

C207

.22uF

NC

72

3

60
59
58
57
56
55
54
53
21
20
19
18
17
16
15
14

.01uF

.01uF

R105

4.7K

E

IRQ
XIRQ
RESET
PD5_SS

PG7_R_W

MODA_LIR

PF0_ADDR0
PF1_ADDR1
PF2_ADDR2
PF3_ADDR3
PF4_ADDR4
PF5_ADDR5
PF6_ADDR6
PF7_ADDR7
PB0_ADDR8

PB1_ADDR9
PB2_ADDR10
PB3_ADDR11
PB4_ADDR12
PB5_ADDR13
PB6_ADDR14
PB7_ADDR15

C231

.01uF

+5V

R106
10K
R104

47K

12

71

2

PD4_SCK

MODB_VSTBY

76

C226

C225

VDD31VDD

13

0.1uF

VSS

32

C224

41

VDD

VSS70VSS

AVSS

52

.01uF

1

PD3_MOSI

NC

C2

VDD

F1

CLK

C3

PLCLK

E1

XTALIN

G1

TRKCLKIN

G2

DTMFCLK

F2

PGMENAB

E3

DATA

H4

EXTVOLIN

NC

J5

EXPAUDIO

NC

H6

RXIN

J6

AUXRXIN

NC

A7

EXTMICIN

NC

C7

TXIN

NC

D7

AUXTXIN

H7

SQIN

J7

PLIN

B8

MICIN

E8

LIMIN

G8

RSSI

GNDDD2GND1

D3

50

51

VRL

VRH

AVDD

U101

68HC11K1_QFP

PA6_OC2_OC1

PA7_PA1_OC1

6

5

4

0.22uF

C223

4.7uF

H3

B2

C1

J3

UNIVIO

LOOPCAP

TIMINGCAP

GND2F3GND3G3GND4D4GND5

E4

C106

0.1uF

C111

.01uF

24

25

PH0_PW122PH1_PW223PH2_PW3

PH3_PW4

PA3_IC4_OC5

PA4_OC4_OC1

PA5_OC3_OC1

8

7

R221

0

1uF C222

B6

C5

A5

LCAP

DCAP

RXLIMCAP

LOWSPCAP

U201

GND8

GND6F4GND7

E5

D5

PA2_IC1

9

C221

D6

BUFFDISC

GND9

F5

26

PH4_CSIO

PA1_IC2

10

E7

VAGCAP

GND10

G5

11

F8

NC

28

29

PH5_CSGP127PH6_CSGP2

PH7_CSPROG

PA0_IC3

PD0_RxD

78

79

0.1uF

SQDET

H1

H2

SQDET

BIASRES

GND11E6GND12F6GND13

G6

NC

74

XTAL

PD1_TxD

PD2_MISO

80

RESET

J2

RESET

CHACT

RXAUDOUT
UNATRXOUT
MICAMPOUT

GNDA

B7

34

73

EXTAL
PC0_DATA0
PC1_DATA1
PC2_DATA2
PC3_DATA3
PC4_DATA4
PC5_DATA5
PC6_DATA6
PC7_DATA7

PE0_AN0
PE1_AN1
PE2_AN2
PE3_AN3
PE4_AN4
PE5_AN5
PE6_AN6
PE7_AN7

PG0_XA13

PG1_XA14

PG2_XA15

PG3_XA16

PG4_XA17

PG5_XA18

MDCREF

UPCLK

XTALOUT

PLLIM

RXLIMOUT

VOXO
DACO

REFATN

PREMP
VAGOUT
VCOATN

GCB0
GCB1
GCB2
GCB3
GCB4
GCB5

TP133

10
11

12

13
14

10uF

D102

0
1
2
3
4
5
6
7
8
9

+5V

R150

47K

R151
200K

HANDSET_AUDIO

R132

+5V

22K

C131

0.1uF

U106

3

Q200

R235

68K

R236

100K

8

U102

VCC

30

EN_CE

32

EN_OE

7

EN_WE

20

0

19

1

18

2

17

3

16

4

15

5

14

6

13

7

3

8

2

9

31

10

1

11

12

12

4

13

5

14

11

15

10
16
17

21

D0

A0

22

D1

A1

23

D2

A2

25

D3

A3

26

D4

A4

27

D5

A5

28

D6

A6

29

D7

A7
A8

6

A17

A9

9

VPP

A10
A11
A12
A13
A14
A15
A16

GND

24

9V3

R200
10K

C200

0.1uF

C234

0.1uF

R147
270

C147

PG6

62

0

63

1

64

2

65

3

66

4

67

5

68

6

69

7

49
48
47
46
45
44
43
42

40
39
38
37
36
35

0
1
2
3
4
5
6
7

14
15
16
17

R146

270

B1
D1
E2

A4

NC

G4
J4
H5
A6

NC

C6

NC

F7

NC

G7
C8
D8
H8
B5
A3
B4
B3
A2
C4

C242

NC

39PF

NC

NC
NC

.00

R117

0NU

12

C146

24PF

C228

R222

47K

C229

.01uF

R223

47.5K

.1uF

L200
33000nH

C227

47UF

C237

.033uF

C230

4.7uF

R133

C132

C133

0.1uF

0
1
2
3
4
5
6
7

1uF

+5V

U103

28

20

VCC

EN_CS

22

EN_OE

27

EN_WE

11
12
13
15
16
17
18
19

10

IO1

A0

9

IO2

A1

8

IO3

A2

7

IO4

A3

6

IO5

A4

5

IO6

A5

4

IO7

A6

3

IO8

A7

25

A8

24

A9

21

A10

23

A11

2

A12

26

A13

1

A14

GND

14

100K

0
1
2
3
4
5
6
7

+5V

D200

NC

C233

33pF

R233

10K

9

VAG

U202

10

R232

68K

R231

0NU
C232

8

AN_3_OFF

VPP

5

NC

NC

7

U202

6

+5V

R134

R131

4.7K

0NU

+5V

+5V

R135

10K

9V3

C254

0.1uF

8

6

7

U251

5

4

C135

0.1uF

16

U105

VCC
1
2
3

6
4
5

15

A0

Y0

NC

14

A1

Y1

13

A2

Y2

12

Y3

11

CS1

Y4

10

CS2

Y5

CS3

9

Y6

7

Y7

GND

8

FAST OFF CIRCUIT: POT DETECTOR

R152
2K

NC

LED_CE

Q150

B+_CONTROL

R251

47.5K

R252

47.5K

9V3

2

3

C252

10uF

8

U104

VCC

5

SI

2

HOLD_

SO

1

CS_

6

WP_

SCK

VSS

4

L131
270nH

L132
270nH

C136
39PF

U251

+5V

Q141

VAG

VAG

1

C253

1uF

+5V

9V3

C134

R136

0.1uF

10K

7

3

C137
39PF

R142

10K

CR150

C241

39PF

C648

39PF

TP103

C651

C650

C649

39PF

39PF

39PF

Q101

FLT_A+

+5V
FLT_A+

ON_OFF_CONTROL

SCI_RSS
MIC

HANDSET_AUDIO

LED_CE

INT_SPKR+
INT_SPKR-

C107
.01uF

VR101

8

6

11

C643
39PF

10V

PUBLIC_ADDRESS

9

U106

10

4

U106

5

+5V

14

12

U106

13

7

Q102

R122
47K

LCD_CE

C151

0.1uF

PTT

+5V

LOCK_DET

J101

9
17
18
15
4
16
14
10
11
13
12

1

2

5

6

8

3

7

L430

L431

L432

L433
L434

C644

39PF

C642

39PF

L418

L420
L421
L422
L423
L424
L425
L426
L427
L428

C645

39PF

L419

L429

C646

39PF

C647

39PF

R111

4.7K

C652

39PF

+5V

R155

47K

R153

33K

CR151

R123
10K

R126

+5V

10K

NC

9V3

R204

C209
10uF

1K100

R205

R206
470

C210

.022uF

C203

39PF

C204

39PF

C211

.100uF

R201

100K

2

U202

3

VAG

R202

C205

1

.22uF

10K

Schematic Diagram for HLF9005A, HLF9006A,

HLF9007A & HLF9008A Main Boards,

Audio & Digital Controller Section

June, 2000 6880905Z99-O 9

Schematic Diagram for HLF9005, HLF9006A,
HLF9007A & HLF9008A Main Board,
Audio PA & I/O Sections

IGNITION_CONTROL

IGNITION_SENSE

VPP

PUBLIC_ADDRESS

PTT

FLAT_RX_AUDIO

EXTERNAL_ALARM

K9V1_ENABLE

DATA_PTT

RSSI_BUF

RX_AUDIO

AUDIO_PA_ENABLE

INT_SPKR-

INT_SPKR+

MIC

HOOK_RSS

VR430

5.1V

+5V

R404

10K

NC

+5V

IGNITION ONE SHOT

R466

4.7K

NC
R431

10K

R423

4.7K

R424

560

+5V

R430

4.7K

D402

NC

R465

4.7K

R433

4.7K

D401

+5V

+5V

R405

10K

Q415

7

R464

470K

R401

4.7K

FLT_A+

8

U460

4

R402

1K

R428

C403
NU

R463

R440

4.7K

10K

R442

C425

39PF

47K

C418

4.7uF

VR427

14V

R417
100K

C419

47uF

FLT_A+

12

3

VR425

4

5.1V

C431
39PF

R452

10K

S401

SWITCH

Ignition

C426
39PF

R420
100K

SCI_TX

BUS+GATED_RX_AUDIO

SW_B+

VR431

14V

J400

F401

63V

500mA

C442
39PF

R421

560

C421

39PF

R422

4.7K
C422

R435

560

C427

39PF

VR441

33V

VR421

14V

VR422

14V39PF

C423

39PF

L414

L403

BLM21A05

L404

BLM21A05

L405

BLM21A05

L406

BLM21A05

L413

BLM21A05

L407

BLM21A05

L415

L416

L408

BLM21A05

L409

BLM21A05

L410

BLM21A05

L411

BLM21A05

L412

BLM21A05

L435

9

SWB+

10

IGNITION_SENSE

8

SCI_DATA_OUT

6

SCI_DATA_IN

7

GROUND

12

PUBLIC_ADDRESS/SPEAKER_MUTE

4

EXTERNAL_ALARM/TX_SENSE

15

SYS_BUSY/RSSI_BUF

16

EXT_SPKR+

1

EXT_SPKR-

2

EXTERNAL_MIC_AUDIO

14

HOOK

3

PTT/DATA_PTT

5

FLAT_TX_AUDIO

11

EXT_RX_AUDIO

13

INT_SPK+

FLT_A+

SW_B+

9V3

+5V

VAG

INTERNAL
SPEAKER

JUMPER

FLT_A+

SW_B+

9V3

+5V

VAG

+5V

R460

200K
C460

0.1UF

R406

C401

22K

R462

200K

Q410

SW_B+

Q401

2.2UF

R461

47K

D403

1M

6

5

+5V

C402

.0033uF

15

10
11

12

1
2

3
6

U402

C404
47UF

B+_CONTROL

FAST_OFF_IGN

FLT_A+

16

VDD

W0

W1
X0

X1
Y0

Y1
Z0

Z1

CNTL

VEE8VSS

7

R427
100K

FLT_A+

C409

.1uF

9
1
3
8

W

X

Y

Z

.01uF

U401

INV
NINV
RR
M_SS

C411

FAST OFF CIRCUIT: IGN DETECTOR

14

4

5

13

9

R411

10K

7

VCC

4

OUT1

6

OUT2

GND15GND2

2

R467

C410
39PF

10K

VR410

5.1V

C415
39PF

R450

4.7K

R449

33K

Q461

FLT_A+

R412

4.7K

Q411

C412
39PF

R468

10K

VR412

33V

Q460

2

1

U460

3

+5V

Standard/Data

NC

VR415

14V

Q450

C451

39PF

C416

39PF

VR451

5.1V

VR416

14V

R451

4.7K

FLAT_TX_AUDIO

C407

C405

.001uF

C406

.001uF

.01uF

C408
.01uF

C413

39pF
R418

200K

2

3

U403

9V3

C414

1000pF

R426

10K

8

4

R425

10K

6

8

7

U403

5

4

1

VAG

VR426

R419

100

14V

NC

10 6880905Z99-O June, 2000

FLT_A+

ON_OFF_CONTROL

1

R621

2.2K

NC

D621

2

VR621

5.1V

3

C621 C622
39PF

47uF

USW_+5V_CL

U601

45

R606

0

1

D631

2

3

.1uF

C632

33uF

8
7
6
5

IN
FDBK
5V_TAP
_ERORR

U631

OUT

SENSE

SHDN

GND

1
2
3
4

C605

.1uF

R631

10

R632

10

C601

39PF

C602

.1uF

C603
10uF

R601

10K

123

6

R602

7.5K

C604

33uF

R603

R605

22K

1.2K

Q601

R604

6.8K

.022uF

C633

C634

47uF

9V3

+5V

C635C631

.1uF

RESET

Q611

SW_B+

C613

R611

1.2K

R612

3.3K

R613

3.3K

R617

3.3K

TP601

39PF

R641

47.5K

BATTERY_VOLTAGE

R642

16.2K

C641

0.1uF

VR641

5.1V

B+_CONTROL

IGNITION_CONTROL

2

D611

3

1

R614

1K

C611
47uF

R615

10K

R616

10K

C612

0.1uF

Q612

Schematic Diagram for HLF9005A, HLF9006A,

HLF9007A & HLF9008A Main Boards,

Supply Voltage Section

June, 2000 6880905Z99-O 11

Circuit Board Details
for HLF9005A & HLF9006A Main Boards

12 6880905Z99-O June, 2000

Parts List

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

capacitor, fixed: uF +/-15%; 50 V:

unless otherwise stated
C100 2113740F41 39 pF
C101 thru 103 2113743K15 ceramic 0.1
C104 2113741F49 0.01
C105 2311049A42 tantalum 3.3 ±10%; 6 V
C106 2113743K15 ceramic 0.1
C107 2113741F49 0.01
C108 2113741F25 1000 pF
C109, 110 2113740F41 39 pF
C111 2113741F49 0.01
C113, 114 2113741F49 0.01
C131 2113743K15 ceramic 0.1
C132 2311049A07 tantalum 1 ±10%; 16 V
C133 thru 135 2113743K15 ceramic 0.1
C136, 137 2113740F41 39 pF
C146 2113740F36 24 pF
C151 2113743K15 ceramic 0.1
C200 2113743K15 ceramic 0.1
C201 2113740F41 39 pF
C202 2113741F17 470 pF
C203, 204 2113740F41 39 pF
C205 2113743F08 ceramic 0.22
C206 2113743K15 ceramic 0.1
C207 2113743F08 ceramic 0.22
C208 2113741F13 330 pF
C209 2311049J26 tantalum 10 ±20%; 16 V
C210 2113741A53 .022 ±10%
C211 2113743A19 100 nF ±10%
C212 2113743K15 ceramic 0.1
C221 2113743K15 ceramic 0.1
C222 2311049A07 tantalum 1 ±10%; 16 V
C223 2113743F08 ceramic 0.22
C224 2311049J11 tantalum 4.7 ±10%; 16 V
C225 2113741F49 0.01
C226 2113743K15 ceramic 0.1
C227 2311049J44 tantalum 47 ±20%; 10 V
C228 2311049A01 tantalum 0.1 ±10%; 35 V
C229 2113741F49 0.01
C230 2311049J11 tantalum 4.7 ±10%; 16 V
C231 2113741F49 0.01
C232 2311049J26 10 pF
C233 2113740F39 33 pF
C234 2113743K15 ceramic 0.1
C237 2113741A57 .033
C241, 242 2113740F41 39 pF
C251 2113743K15 ceramic 0.1
C252 2311049J23 tantalum 10 ±10%; 7 V
C253 2311049A07 tantalum 1 ±10%; 16 V
C254 2113743K15 ceramic 0.1
C401 2113743K15 ceramic 0.1
C402 2113741F37 3.3 nF
C404 2311049J44 tantalum 47 pF ±20%; 10 V
C405, 406 2113741F25 1000 pF
C407, 408 2113741F49 0.01
C409 2109720D14 ceramic 0.1
C410 2113740F41 39 pF
C411 2113741F49 0.01
C412, 413 2113740F41 39 pF
C414 2113741F25 1000 pF
C415, 416 2113740F41 39 pF
C418, 419 2311049J11 tantalum 4.7 ±10%; 16 V
C421 thru 423 2113740F41 39 pF
C425 thru 427 2113740F41 39 pF
C431 2113740F41 39 pF
C442 2113740F41 39 pF
C451 2113740F41 39 pF
C460 2311049A09 tantalum 2.2 ±10%; 20 V
C601 2113740F41 39 pF
C602 2109720D14 ceramic 0.1
C603 2380090M24 10 pF ±20%; 50 V SMT
C604 2311049J40 tantalum 33 pF ±20%; 16 V
C605 2109720D14 ceramic 0.1; low DIST
C611 2311049C05 tantalum 47 ±10%; 16 V
C612 2113743K15 ceramic 0.1
C613 2113740F41 39 pF
C621 2113740F41 39 pF
C622 2311049J44 tantalum 47 ±20%; 10 V
C631 2109720D14 ceramic 0.1; low DIST
C632 2311049J40 tantalum 33 ±20%; 16 V
C633 2113743E07 22 nF
C634 2311049J44 tanalum 47 ±20%; 10 V
C635 2109720D14 ceramic 0.1; low DIST

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

C641 2113743K15 ceramic 0.1
C642 thru 652 2113740F41 39 pF
C701 thru 703 2113740F41 39 pF
C711, 712 2113743K15 ceramic 0.1
C713 2113740F41 39 pF
C722, 723 2113740F41 39 pF
C724 2113743K15 ceramic 0.1
C725, 726 2113740F41 39 pF
C727 2113743K15 ceramic 0.1
C731 2113743K15 ceramic 0.1
C741 2113740F41 39 pF
C5200 2113740F35 22 pF
C5201 2113740F14 3 pF
C5202 2113740F31 15 pF
C5203, 5204 2113743K15 ceramic 0.1
C5205 2113740F34 20 pF
C5208 2113743K15 ceramic 0.1
C5211 2113740F32 16 pF
C5212 2113740F30 13 pF
C5213 2113740F40 36 pF
C5214 2113740F17 3.9 pF
C5223 2113743K15 ceramic 0.1
C5224 2113741F29 1500 pF
C5225 2311049A11 tantalum 3.3 ±10%; 16 V
C5226 2113743K05 ceramic .039
C5227 2311049J11 tantalum 4.7 ±10%; 16 V
C5228 2113743K15 ceramic 0.1
C5229 2113740F41 39 pF
C5231 2311049A05 tantalum 0.47 ±10%; 25 V
C5233 2113740F41 39 pF
C5234 2113743K15 ceramic 0.1
C5235 thru 5237 2113740F41 39 pF
C5239 2113740F41 39 pF
C5251 2311049A57 10
C5252 2113743K15 ceramic 0.1
C5308 2113740F23 6.8 pF
C5310 2113740F41 39 pF
C5311 2113741F49 0.01
C5312 2113740F14 3 pF
C5321, 5322 2113740F41 39 pF
C5323 thru 5326 2113741F49 0.01
C5404 2113740F37 27 pF
C5700 2113743E07 ceramic 22 nF
C5701, 5702 2113743K15 ceramic 0.1
C5703 2113740F09 1.8 pF
C5704 2113740F12 2.4 pF
C5705 thru 5708 2113740F41 39 pF
C5709 thru 5711 2113740F51 100 pF
C5712, 5713 2311049J26 tantalum 10 ±20%; 16 V
C5714 thru 5717 2311049J11 tantalum 4.7 pF ±10%; 16 V
C5718 2311049A14 tantalum 4.7 pF ±10%; 20 V
C5719 2311049J11 tantalum 4.7 pF ±10%; 16 V
C5720 thru 5731 2113743K15 ceramic 0.1
C5732 thru 5735 2113743E07 ceramic 22 nF
C5737 thru 5743 2113743E07 ceramic 22 nF
C5744 thru 5747 2109720D01 ceramic 0.1
C5748 2113741F49 0.01
C5750 2105248W02 1.2 nF
C5751 2113741A57 33 nF
C5752 thru 5779 2113740F41 39 pF
C5782 2113740F18 4.3 pF
C5783 2113740F03 1 pF
C5784, 5785 2113740F13 2.7 pF
C5786 2113740F12 2.4 pF
C5787, 5788 2113740F51 100 pF
C5789 2113740F12 2.4 pF
C5790 2113740F17 3.9 pF
C5791 2113740F03 1 pF
C5792, 5793 2113740F13 2.7 pF
C5794 2113740F41 39 pF
C5795 2113740F51 100 pF
C5796 thru 5799 2109720D14 ceramic 0.1
C5802, 5803 2109720D14 ceramic 0.1
C5804 thru 5806 2113743K15 ceramic 0.1
C5810, 5811 2113740F41 39 pF
C5813, 5814 2113740F41 39 pF
C6501 2113743K15 ceramic 0.1
C6502 2113740F12 2.4 pF
C6503 2113740F41 39 pF
C6505, 6506 2113740F41 39 pF
C6507 2113743K15 ceramic 0.1
C6508 thru 6510 2113741F49 0.01
C6511 thru 6513 2311049A01 tantalum 0.1 ±10%; 35 V

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

C6514 thru 6516 2311049A08 tantalum 1 ±10%; 35 V
C6517 thru 6519 2113740F41 39 pF
C6520 2113740F13 2.7 pF
C6522 2113740F41 39 pF
C6523 2113740F27 10 pF
C6524 2113743E07 ceramic .022
C6525 2113741F25 1000 pF
C6526 2113740F41 39 pF
C6529 2113740F41 39 pF
C6532 thru 6535 2113740F41 39 pF
C6537 2113740F41 39 pF
C6538 2113741F49 .01
C6539 2113742B24 15 pF
C6541, 6542 2113742B22 10 pF
C6544 2113742H10 1 pF
C6545 2113741F49 .01
C6546 2311049A01 tantalum 0.1 ±10%; 35 V
C6548 2113741F49 .01
C6549, 6550 2113743K15 ceramic 0.1
C6551 2113741F49 .01
C6552, 6553 2311049A08 1
C6554 2113740B39 39 pF
C6555 2111078B45 130 pF
C6563 2113742H34 6.8 pF
C6564 2113741F25 1000 pF
C6565, 6566 2311049A01 tantalum 0.1 ±10%; 35 V
C6567, 6568 2113742B25 18 pF
C6569 2113743K15 ceramic 0.1
C6570, 6571 2113740F41 39 pF

diode: (see note 1)

CR150, 151 4813833C02 dual 70 V common cathode
CR721 4813833C02 dual 70 V common cathode
CR5700 4802233J09 triple SOT 143-RH
CR5701, 5702 4862824C01 varactor
CR6501 4813833C02 dual 70 V common cathode
CR6502, 6503 4802482J02 pin diode SMD
CR6508 4813832B35 transient suppressor SMT
CR6509 4805218N57 dual Schottky common cathode
D101, 102 4813833C02 dual 70 V common cathode
D200 4813833C02 dual 70 V common cathode
D401, 402 4880939T01 silicon SMT
D403 4813833C02 dual 70 V common cathode
D611 4813833C02 dual 70 V common cathode
D621 4813833C02 dual 70 V common cathode
D631 4813833C02 dual 70 V common cathode
D5201 4880154K03 dual Schottky
D5303 4880154K03 dual Schottky

fuse:

F401 6585711L05 63V, 500 mA SMT

filter:

FL5201 9180098D16 455 KHz ceramic filter
FL5202 9180098D15 455 KHz ceramic filter
FL5203, 5204 9102603S24 860 MHz ceramic filter

hybrid:

H6501 0108704H03 matching hybrid
H6502 5185807L01 harmonic filter hybrid

connector, receptacle:

J100 0902636Y01 flexible cable, side entry
J400 2804503J01 accessory 16-pin
J6500 3080562V01 power cable
J6501 0905901V06 antenna

coil, rf:

L131, 132 2462587Q40 inductor 270 nH 10%
L200 2462587P30 inductor 33 uH 10%
L403 thru 413 2402601S05 inductor BLM21A05
L414 thru 416 2484657R01 ferrite bead
L418 2402601S05 inductor BLM21A05
L419 2484657R01 ferrite bead
L420 thru 428 2402601S05 inductor BLM21A05
L429, 430 2484657R01 ferrite bead
L431 thru 434 2402601S05 inductor BLM21A05
L435 2484657R01 ferrite bead 5%
L5201 2462587M19 inductor 1200 nH 5%, low PRO
L5203 2462587T30 inductor 1.0 uH
L5211 2483411T74 inductor 1.2 mH
L5302 2413926E09 inductor 6.8 nH 5%
L5321 2460591A01 inductor 4.2 nH

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

L5322 2462587T13 inductor 68 nH 5%, low PRO
L5401, 5402 2483411T69 inductor 0.47 mH
L5700 thru 5704 2462587T30 inductor 1.0 uH 5%, low PRO
L5705, 5706 2462587T17 inductor 150 nH 5%, low PRO
L5707 2462587T30 inductor 1.0 uH 5%, low PRO
L5708 2462587T17 inductor 150 nH 5%, low PRO
L5709 2462587Q44 inductor 560 nH 10%
L6501 2462587T13 inductor 68 nH 5%, low PRO
L6502 2460591A11 inductor 7.66 nH air wound
L6503 2462587T13 inductor 68 nH 5%, low PRO
L6504 thru 6506 2484657R01 ferrite bead
L6507 2484562T01 inductor, 2.5 nH
L6508 2484657R01 ferrite bead
L6509 2460591R53 inductor 82 nH
L6510 2484657R01 ferrite bead
L6511 2462587T13 inductor 68 nH 5%, low PRO
L6512 2460591E24 inductor 23.75 nH air wound
L6513 2460591A01 inductor 4.2 nH
L6514 thru 6517 2462587T13 inductor 68 nH 5%, low PRO
L6518, 6519 2484657R01 ferrite bead
L6521 2409348J03 inductor, 3.85 nH
L6522, 6523 2460591R53 inductor 82 nH air wound

transistor: (see note 1)

Q101 thru 103 4880048M01 NPN DTC144EK
Q141 4880048M01 NPN DTC144EK
Q150 4882033T01 NPN DTC114YK
Q200 4880214G02 NPN MMBT3904
Q401 4880214G02 NPN MMBT3904
Q410 4880048M01 NPN DTC144EK
Q411 4880052M01 NPN RXT-A28-T200
Q415 4880494U01 PNP DTA144EKA
Q450 4880048M01 NPN DTC144EK
Q460, 461 4880048M01 NPN DTC144EK
Q601 4880214G02 NPN MMBT3904
Q611 4805128M27 PNP BSR33
Q612 4880214G02 NPN MMBT3904
Q731 4880214G02 NPN MMBT3904
Q741 4880048M01 NPN DTC144EK
Q742 4805128M27 PNP BSR33
Q5201 4813827A07 NPN MMBR941LT1
Q5230 4813824A17 PNP 3906L
Q5301 4813827A18 NPN MRF9411LT1
Q5700 4880048M01 NPN DTC144EK
Q5701 4813824A17 PNP 3906L
Q5702 thru 5704 4809527E01 NPN RF NE85663
Q5705 4804188K01 NPN RF NE85634
Q5706, 5707 4809527E01 NPN RF NE85663
Q6501 4813827A26 NPN RF MRF8372
Q6505 4880225C17 NPN RF MRF847
Q6506 4813824B01 NPN 2222AT

resistor, fixed: +/-5%; 1/8 W:

unless otherwise stated
R100 0662057A65 4.7k
R101 thru 103 0662057B05 200k
R104 0662057A89 47k
R105 0662057A65 4.7k
R106 0662057A73 10k
R107 0662057A57 2.2k
R108 0662057A73 10k
R109, 110 0662057A35 270 ohms
R111, 112 0662057A65 4.7k
R113 0662057A85 33k
R114 0662057A93 68k
R115, 116 0662057A73 10k
R121 0662057A65 4.7k
R122 0662057A89 47k
R123 0662057A73 10k
R126 0662057A73 10k
R127 0662057A65 4.7k
R131 0662057A65 4.7k
R132 0662057A81 22k
R133 0662057A97 100k
R135, 136 0662057A73 10k
R142 0662057A73 10k
R145 0662057A73 10k
R146, 147 0662057A35 270 ohms
R150 0662057A89 47k
R151 0662057B05 200k
R152 0662057A56 2k
R153 0662057A85 33k
R155 0662057A89 47k

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

R200 0662057A73 10k
R201 0662057A97 100k
R202, 203 0662057A73 10k
R204 0662057A25 100 ohms
R205 0662057A49 1k
R206 0662057A41 470 ohms
R207 0662057A81 22k
R208, 209 0662057A73 10k
R210 0662057A49 1k
R221 0662057B47 0 ohms
R222 0662057A89 47k
R223 0662057R92 47.5k ±1%; 1/10 W
R232 0662057A93 68k
R233 0662057A73 10k
R235 0662057A93 68k
R236 0662057A97 100k
R251, 252 0662057R92 47.5k ±1%; 1/10 W
R401 0662057A65 4.7k
R402 0662057A49 1k
R404, 405 0662057A73 10k
R406 0662057A81 22k
R411 0662057A73 10k
R412 0662057A65 4.7k
R417 0662057A97 100k
R418 0662057B05 200k
R419 0662057A25 100 ohms
R420 0662057A97 100k
R421 0662057A43 560 ohms
R422, 423 0662057A65 4.7k
R424 0662057A43 560 ohms
R425, 426 0662057A73 10k
R427 0662057A97 100k
R428 0662057A73 10k
R430 0662057A65 4.7k
R431 0662057A73 10k
R433 0662057A65 4.7k
R435 0662057A43 560 ohms
R440 0662057A65 4.7k
R442 0662057A89 47k
R449 0662057A85 33k
R450, 451 0662057A65 4.7k
R452 0662057A73 10k
R460 0662057B05 200k
R461 0662057A89 47k
R462 0662057B05 200k
R463 0662057B22 1 Meg.
R464 0662057B14 470k
R465, 466 0662057A65 4.7k
R467, 468 0662057A73 10k
R601 0662057A73 10k
R602 0662057R55 7.50k ±1%; 1/10 W
R603 0662057R31 1.21k ±1%; 1/10 W
R604 0662057A69 6.8k
R605 0662057A81 22k
R606 0662057B47 0 ohms
R611 0662057A51 1.2k
R612, 613 0662057C87 3.3k
R614 0662057A49 1k
R615, 616 0662057A73 10k
R617 0662057C87 3.3k
R621 0662057A57 2.2k
R631, 632 0662057A01 10 ohms
R641 0662057R92 47.5k
R642 0662057R67 16.2k
R702 0662057A58 2.4k
R703, 704 0662057A81 22k
R705 0662057A43 560 ohms
R706 0662057A97 100k
R711 0662057A81 22k
R712 0662057B47 0 ohms
R713 0662057A42 510 ohms
R714 0662057A25 100 ohms
R715 0662057R30 1k ±1%; 1/10 W
R716 thru 718 0662057R60 10k ±1%; 1/10 W
R719 0662057R30 1k ±1%; 1/10 W
R720 0662057R60 10.k ±1%; 1/10 W
R721 0662057A67 5.6k
R722 0662057A81 22k
R723 0662057A97 100k
R724 0662057A61 3.3k
R725, 726 0662057A73 10k
R727 0662057A81 22k
R728 thru 731 0662057G13 100k ±1%

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

R732 thru 734 0662057A65 4.7k
R736, 737 0662057A65 4.7k
R740 0662057A57 2.2k
R741, 742 0662057A53 1.5k
R743 0662057A49 1k
R5201 0662057A76 13k
R5202 0662057A85 33k
R5203 0662057A69 6.8k
R5204 0662057A25 100 ohms
R5205 0662057A56 2k
R5207 0662057B47 0 ohms
R5211 0662057A47 820 ohms
R5212 0662057A67 5.6k
R5221 0662057B01 130k
R5223 0662057A70 7.5k
R5224 0662057A76 13k
R5230 0662057A89 47k
R5240 0683962T49 100 ohms
R5241 0662057B47 0 ohms
R5302 0662057A33 220 ohms
R5306 0662057A29 150 ohms
R5311, 5312 0662057A76 13k
R5321 0662057A33 220 ohms
R5322 0662057A01 10 ohms
R5323 0662057A36 300 ohms
R5324, 5325 0662057A39 390 ohms
R5327 0662057B47 0 ohms
R5401 0662057A18 51 ohms
R5700 0662057A57 2.2k
R5703 0662057A73 10k
R5704 0662057A37 330 ohms
R5705 0662057A73 10k
R5706 0662057A42 510 ohms
R5707 0662057A61 3.3k
R5708, 5709 0662057B05 200k
R5710 0662057A73 10k
R5711 thru 5713 0662057A65 4.7k
R5714 0662057A59 2.7k
R5715 0662057A57 2.2k
R5716, 5717 0662057A56 2k
R5718 0662057A53 1.5k
R5724 thru 5727 0662057A42 510 ohms
R5728 0662057A37 330 ohms
R5729 0662057A29 150 ohms
R5731, 5733 0662057A25 100 ohms
R5734 thru 5736 0662057A18 51 ohms
R5737, 5738 0662057A09 22 ohms
R5739, 5740 0662057A18 51 ohms
R5741 0662057A01 10 ohms
R5742 0662057A69 6.8k
R5743 0662057A73 10k
R5744, 5745 0662057A31 180 ohms
R5746 0662057A73 10k
R5747 0662057A69 6.8k
R5748 0662057A09 22 ohms
R5750, 5751 0662057A59 2.7k
R5752 0662057A37 330 ohms
R5753 0662057A13 33 ohms
R5754 0662057A37 330 ohms
R5755 0662057A09 22 ohms
R5756, 5757 0662057A35 270 ohms
R6503 0662057A01 10 ohms
R6504 0662057C69 560 ohms
R6505 0662057C27 10 ohms
R6506 0662057C69 560 ohms
R6508 0683962T17 4.7 ohms
R6509 0662057G13 100k
R6514 0662057G13 100k
R6515 0662057A61 3.3k
R6519 0680361L01 therm 47k
R6520 1705603W01 shunt, 1.639 mH
R6523 thru 6525 0662057A53 1.5k
R6526 0662057A01 10 ohms
R6527, 6528 0662057A43 560 ohms
R6530 0662057A15 39 ohms
R6531 0662057A09 22 ohms
R6532 0662057G13 100k
R6540 0680195M22 75 ohms
R6555 0662057A33 220 ohms

switch:

S401 4085797L01 2-position

HLF9005 & HLF9006 Radio, 800 MHz, 35 W PL-201001-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

shield:

E5700 2602660J02 MMIC shield
E5701 2604668E02 VCO shield
E5702, 5703 2602660J02 buffer shield
E5704 2680524L01 synthesizer shield
SH5201 2605261V01 LNA shield
SH5202, 5203 2605417V01 mixer shield
SH5203 2605417V01 IF amplifier shield
SH6501 2680567V01 RF power module shield

integrated circuit: (see note)

U101 5180421V01 MC68HC11K1
U102 5108444S61 FLASH memory
U103 5185963A21 SRAM
U104 5108444S49 EEPROM
U105 5113805A30 1 of 8 DCD/demux 74HC138
U106 5113808A07 AND quad 2 INP MC74AC08D
U201 5105835U45 ASFIC
U202 5113819A04 quad op-amp
U203 5109522E13 switch SPDT
U251 5113818A03 dual op-amp
U401 5109699X01 audio PA
U402 5180173M02 switch 4PDT
U403 5113818A10 dual op-amp
U460 5113818A03 dual op-amp
U601 5105625U25 9.3 V regulator 2941
U631 5105469E65 voltage regulator LP2951AC
U701 5113819A02 quad op-amp
U702 5113811G02 D/A converter 6-bit 4-ch. with SPI
U5201 5180207R01 IFIC
U5211 5185670L01 mixer DBL balanced
U5700 5105279V31 16.8 MHz ref. oscillator mode
U5701 5105109Z59 MMIC
U5702 5105457W46 frac-N synthesizer
U5703 5113816A07 regulator 5 V 500 mA MC78M05BDT
U5704, 5705 4805921T02 switch FMC2
U5706, 5707 4804122K04 microstrip line resonator
U6501 5113829D22 806-870 MHz, 20 W; 12.5 V
U6502 4805921T02 switch FMC2

Zener diode: (see note 1)

VR101 4813830A23 10 V 5%; 225 mW MMBZ5240BL
VR410 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR412 4813830A40 33 V 5%; 225 mW MMBZ5257B
VR415, 416 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR421, 422 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR425 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR426, 427 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR430 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR431 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR441 4813830A40 33 V 5%; 225 mW MMBZ5257B
VR451 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR621 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR641 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR6501 4813830A25 12 V 5%; 225 mW MMBZ5242B

crystal: (see note 2)

Y5201 9102652Y01 filter 45.1 MHz
Y5202 9102652Y02 filter 45.1 MHz
Y5211 4802653Y01 resonator 44.6450 MHz

notes:

1. For optimumperformance, diodes,transistors andintegrated circuits must
be ordered by MOTOROLA part numbers.

2. When ordering quartz crystal units or ceramic resonators, specify carrier
frequency, crystal (or resonator) frequency, and crystal (or resonator) type
number.

Parts List for HLF9005A & HLF9006A Main Boards

June, 2000 6880905Z99-O 13

Circuit Board Details
for HLF9007A & HLF9008A Main Boards

14 6880905Z99-O June, 2000

Parts List

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

capacitor, fixed: uF +/-5%; 50 V:

unless otherwise stated
C100 2113740F41 39 pF
C101 thru 103 2113743K15 ceramic 0.1
C104 2113741F49 0.01
C105 2311049A42 tantalum 3.3 ±10%; 6 V
C106 2113743K15 ceramic 0.1
C107 2113741F49 0.01
C108 2113741F25 1000 pF
C109, 110 2113740F41 39 pF
C111 2113741F49 0.01
C113, 114 2113741F49 0.01
C131 2113743K15 ceramic 0.1
C132 2311049A07 tantalum 1 ±10%; 16 V
C133 thru 135 2113743K15 ceramic 0.1
C136, 137 2113740F41 39 pF
C146 2113740F36 24 pF
C151 2113743K15 ceramic 0.1
C200 2113743K15 ceramic 0.1
C201 2113740F41 39 pF
C202 2113741F17 470 pF
C203, 204 2113740F41 39 pF
C205 2113743F08 ceramic 0.22
C206 2113743K15 ceramic 0.1
C207 2113743F08 ceramic 0.22
C208 2113741F13 330 pF
C209 2311049J26 tantalum 10 ±20%; 16 V
C210 2113741A53 .022 ±10%
C211 2113743A19 100 nF ±10%
C212 2113743K15 ceramic 0.1
C221 2113743K15 ceramic 0.1
C222 2311049A07 tantalum 1 ±10%; 16 V
C223 2113743F08 ceramic 0.22
C224 2311049J11 tantalum 4.7 ±20%; 10 V
C225 2113741F49 0.01
C226 2113743K15 ceramic 0.1
C227 2311049J44 tantalum 47 ±20%; 10 V
C228 2311049A01 tantalum 0.1 ±10%; 35 V
C229 2113741F49 0.01
C230 2311049J11 tantalum 4.7 ±10%; 16 V
C231 2113741F49 0.01
C232 2311049J26 10
C233 2113740F39 33 pF
C234 2113743K15 ceramic 0.1
C237 2113741A57 033
C241, 242 2113740F41 39 pF
C251 2113743K15 ceramic 0.1
C252 2311049J23 tantalum 10 ±10%; 7 V
C253 2311049A07 tantalum 1 ±10%; 16 V
C254 2113743K15 ceramic 0.1
C401 2113743K15 ceramic 0.1
C402 2113741F37 3.3 nF
C404 2311049J44 tantalum 47 ±20%; 10 V
C405, 406 2113741F25 1000 pF
C407, 408 2113741F49 0.01
C409 2109720D14 ceramic 0.1; low DIST
C410 2113740F41 39 pF
C411 2113741F49 0.01
C412, 413 2113740F41 39 pF
C414 2113741F25 1000 pF
C415, 416 2113740F41 39 pF
C418 2311049J11 tantalum 4.7 ±10%; 16 V
C419 2311049J44 tantalum 47 ±20%; 10 V
C421 thru 423 2113740F41 39 pF
C425 thru 427 2113740F41 39 pF
C431 2113740F41 39 pF
C442 2113740F41 39 pF
C451 2113740F41 39 pF
C460 2311049A09 tantalum 2.2 ±10%; 20 V
C601 2113740F41 39 pF
C602 2109720D14 ceramic 0.1; low DIST
C603 2380090M24 10 pF ±20%; 50 V SMT
C604 2311049J40 tantalum 33 ±20%; 16 V
C605 2109720D14 ceramic 0.1; low DIST
C611 2311049C05 tantalum 47 ±10%; 16 V
C612 2113743K15 ceramic 0.1
C613 2113740F41 39 pF
C621 2113740F41 39 pF
C622 2311049J44 tantalum 47 ±20%; 10 V
C631 2109720D14 ceramic 0.1; low DIST
C632 2311049J40 tantalum 33 pF ±20%; 16 V
C633 2113743E07 ceramic .022
C634 2311049J44 tanalum 47 ±20%; 10 V

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

C635 2109720D14 ceramic 0.1; low DIST
C641 2113743K15 ceramic 0.1
C642 thru 652 2113740F41 39 pF
C701 thru 703 2113740F41 39 pF
C711 2113743E07 ceramic .022
C712 2113743K15 ceramic 0.1
C713, 714 2113740F41 39 pF
C722, 723 2113740F41 39 pF
C724 2113743K15 ceramic 0.1
C725, 726 2113740F41 39 pF
C727 2113743K15 ceramic 0.1
C731 2113743K15 ceramic 0.1
C741 2113740F41 39 pF
C5200 2113740F35 22 pF
C5201 2113740F14 3 pF
C5202 2113740F31 15 pF
C5203, 5204 2113743K15 ceramic 0.1
C5205 2113740F34 20 pF
C5208 2113743K15 ceramic 0.1
C5211 2113740F32 16 pF
C5212 2113740F30 13 pF
C5213 2113740F40 36 pF
C5214 2113740F17 3.9 pF
C5223 2113743K15 ceramic 0.1
C5224 2113741F29 1500 pF
C5225 2311049A11 tantalum 3.3 ±10%; 16 V
C5226 2113743K05 ceramic .039
C5227 2311049J11 tantalum 4.7 ±10%; 16 V
C5228 2113743K15 ceramic 0.1
C5229 2113740F41 39 pF
C5231 2311049A05 tantalum 0.47 ±10%; 25 V
C5233 2113740F41 39 pF
C5234 2113743K15 ceramic 0.1
C5235 thru 5237 2113740F41 39 pF
C5239 2113740F41 39 pF
C5251 2311049A57 10
C5252 2113743K15 ceramic 0.1
C5308 2113740F23 6.8 pF
C5310 2113740F41 39 pF
C5311 2113741F49 0.01
C5312 2113740F14 3 pF
C5321, 5322 2113740F41 39 pF
C5323 thru 5326 2113741F49 0.01
C5404 2113740F37 27 pF
C5700 2113743E07 ceramic .022
C5701, 5702 2113743K15 ceramic 0.1
C5703 2113740F09 1.8 pF
C5704 2113740F12 2.4 pF
C5705 thru 5708 2113740F41 39 pF
C5709 thru 5711 2113740F51 100 pF
C5712, 5713 2311049J26 tantalum 10 ±20%; 16 V
C5714 thru 5717 2311049J11 tantalum 4.7 ±10%; 16 V
C5718 2311049A14 tantalum 4.7 ±10%; 20 V
C5719 2311049J11 tantalum 4.7 ±10%; 16 V
C5720 thru 5731 2113743K15 ceramic0.1
C5732 thru 5735 2113743E07 ceramic .022
C5737 thru 5743 2113743E07 ceramic .022
C5744 thru 5747 2109720D01 ceramic 0.1; low DIST
C5748 2113741F49 0.01
C5750 2105248W02 1.2 nF
C5751 2113741A57 33 nF
C5752 thru 5776 2113740F41 39 pF
C5778, 5779 2113740F41 39 pF
C5782 2113740F18 4.3 pF
C5783 2113740F03 1 pF
C5784, 5785 2113740F13 2.7 pF
C5786 2113740F12 2.4 pF
C5787, 5788 2113740F51 100 pF
C5789 2113740F12 2.4 pF
C5790 2113740F17 3.9 pF
C5791 2113740F03 1 pF
C5792, 5793 2113740F13 2.7 pF
C5794 2113740F41 39 pF
C5795 2113740F51 100 pF
C5796 thru 5799 2109720D14 ceramic 0.1; low DIST
C5802, 5803 2109720D14 ceramic 0.1; low DIST
C5804 thru 5806 2113743K15 ceramic 0.1; low DIST
C5810, 5811 2113740F41 39 pF
C5813, 5814 2113740F41 39 pF
C6501 2113743K15 ceramic 0.1
C6502 2113740F21 5.6 pF
C6503 2113740F41 39 pF
C6505, 6506 2113740F41 39 pF

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

C6507 2113743K15 ceramic 0.1
C6508 thru 6510 2113741F49 0.01
C6511 thru 6513 2311049A01 tantalum 0.1 ±10%; 35 V
C6514 thru 6516 2311049A08 tantalum 1 ±10%; 35 V
C6517 thru 6519 2113740F41 39 pF
C6520 2113740F29 12 pF
C6523 2113740F33 18 pF
C6524 2113743E07 ceramic .022
C6525 2113741F25 1000 pF
C6526 2113740F27 10 pF
C6527 2113740F41 39 pF
C6529 2113740F41 39 pF
C6532 thru 6538 2113740F41 39 pF
C6540 2111078A19 3.9 pF
C6541, 6542 2111078A09 1.8 pF
C6543 2113742B29 39 pF
C6544 2113743K15 ceramic 0.1
C6545 2113740F41 39 pF
C6546 2113743K15 ceramic 0.1
C6549, 6550 2113743K15 ceramic 0.1
C6551, 6552 2111078A06 1.5 pF
C6553 2111078A17 3.3 pF
C6560 2113740F34 20 pF
C6562 2113740F19 4.7 pF

diode: (see note)

CR150, 151 4813833C02 dual 70 V common cathode
CR721 4813833C02 dual 70 V common cathode
CR5700 4802233J09 triple SOT 143-RH
CR5701, 5702 4862824C01 varactor
CR6501 4813833C02 dual 70 V common cathode
CR6502, 6503 4802482J02 pin diode SMD
CR6504 4805129M96 dual
CR6506 4805218N57 dual
CR6508 4813832B35 transient suppressor SMT
CR6509 4805218N57 dual
D101, 102 4813833C02 dual 70 V common cathode
D200 4813833C02 dual 70 V common cathode
D401, 402 4880939T01 silicon SMT
D403 4813833C02 dual 70 V common cathode
D611 4813833C02 dual 70 V common cathode
D621 4813833C02 dual 70 V common cathode
D631 4813833C02 dual 70 V common cathode
D5201 4880154K03 dual Schottky
D5303 4880154K03 dual Schottky

fuse:

F401 6585711L05 63 V, 500 mA SMT

filter:

FL5201 9180098D16 455 KHz ceramic filter
FL5202 9180098D15 455 KHz ceramic filter
FL5203, 5204 9102603S24 860 MHz ceramic filter

connector, receptacle:

J100 0902636Y01 flexible cable, side entry
J400 2804503J01 accessory 16-pin
J6501 0905901V06 antenna
J6502 0905902V04 connector power

coil, rf:

L131, 132 2462587Q40 inductor 270 nH 10%
L200 2462587P30 inductor 33 uH 10%
L403 thru 413 2402601S05 inductor BLM21A05
L414 thru 416 2484657R01 ferrite bead
L418 2402601S05 inductor BLM21A05
L419 2484657R01 ferrite bead
L420 thru 428 2402601S05 inductor BLM21A05
L429, 430 2484657R01 ferrite bead
L431 thru 434 2402601S05 inductor BLM21A05
L435 2484657R01 ferrite bead 5%
L5201 2462587M19 inductor 1200 nH 5%, low PRO
L5203 2462587T30 inductor 1.0 uH
L5211 2483411T74 inductor 1.2 mH
L5302 2413926E09 inductor 6.8 nH 5%
L5321 2460591A01 inductor 4.2 nH
L5322 2462587T13 inductor 68 nH 5%, low PRO
L5401, 5402 2483411T69 inductor 0.47 nH 5%, low PRO
L5700 thru 5704 2462587T30 inductor 1.0 uH 5%, low PRO
L5705, 5706 2462587T17 inductor 150 nH 5%, low PRO
L5707 2462587T30 inductor 1.0 uH 5%, low PRO
L5708 2462587T17 inductor 150 nH 5%, low PRO
L5709 2462587Q44 inductor 560 nH 10%

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

L6501 2462587T13 inductor 68 nH 5%, low PRO
L6502 2460591A11 inductor 7.66 nH air wound
L6503 2462587T13 inductor 68 nH 5%, low PRO
L6504 thru 6506 2484657R01 ferrite bead
L6507 2460591R53 inductor 82 nH
L6508 2460591E24 inductor 23.75 nH air wound
L6509 2462587T13 inductor 68 nH 5%, low PRO
L6511 2462587T13 inductor 68 nH 5%, low PRO
L6513 2460591A11 inductor 7.66 nH air wound
L6514 thru 6517 2462587T13 inductor 68 nH 5%, low PRO
L6518 2460591A11 inductor 7.66 nH air wound
L6519 2484657R01 ferrite bead
L6520 2460591R53 inductor 82 nH

transistor: (see note)

Q101 thru 103 4880048M01 NPN DTC144EK
Q141 4880048M01 NPN DTC144EK
Q150 4882033T01 NPN DTC114Yk
Q200 4880214G02 NPN MMBT3904
Q401 4880214G02 NPN MMBT3904
Q410 4880048M01 NPN DTC144EKA
Q411 4880052M01 NPN RXT-A28-T200
Q415 4880494U01 PNP DTA144EKA
Q450 4880048M01 NPN DTC144EK
Q460, 461 4880048M01 NPN DTC144EK
Q601 4880214G02 NPN MMBT3904
Q611 4805128M27 PNP BSR33
Q612 4880214G02 NPN MMBT3904
Q731 4880214G02 NPN MMBT3904
Q741 4880048M01 NPN DTC144EK
Q742 4805128M27 PNP BSR33
Q5201 4813827A07 NPN MMBR941LT1
Q5230 4813824A17 PNP 3906L
Q5301 4813827A18 NPN MRF9411LT1
Q5700 4880048M01 NPN DTC144EK
Q5701 4813824A17 PNP 3906L
Q5702 thru 5704 4809527E01 NPN RF NE85633
Q5705 4804188K01 NPN RF NE85634
Q5706, 5707 4809527E01 NPN RF NE85633
Q6501 4813827A26 NPN RF MRF8372
Q6506 4813824B01 NPN 2222AT

resistor, fixed: +/-5%; 1/8 W:

unless otherwise stated
R100 0662057A65 4.7k
R101 thru 103 0662057B05 200k
R104 0662057A89 47k
R105 0662057A65 4.7k
R106 0662057A73 10k
R107 0662057A57 2.2k
R108 0662057A73 10k
R109, 110 0662057A35 270 ohms
R111, 112 0662057A65 4.7k
R113 0662057A85 33k
R114 0662057A93 68k
R115, 116 0662057A73 10k
R121 0662057A65 4.7k
R122 0662057A89 47k
R123 0662057A73 10k
R126 0662057A73 10k
R127 0662057A65 4.7k
R131 0662057A65 4.7k
R132 0662057A81 22k
R133 0662057A97 100k
R135, 136 0662057A73 10k
R142 0662057A73 10k
R145 0662057A73 10k
R146, 147 0662057A35 270 ohms
R150 0662057A89 47k
R151 0662057B05 200k
R152 0662057A56 2k
R153 0662057A85 33k
R155 0662057A89 47k
R200 0662057A73 10k
R201 0662057A97 100k
R202, 203 0662057A73 10k
R204 0662057A25 100
R205 0662057A49 1k
R206 0662057A41 470
R207 0662057A81 22k
R208, 209 0662057A73 10k
R210 0662057A49 1k
R221 0662057B47 0 ohms

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

R222 0662057A89 47k
R223 0662057R92 47.5k ±1%; 1/10 W
R232 0662057A93 68k
R233 0662057A73 10k
R235 0662057A93 68k
R236 0662057A97 100k
R251, 252 0662057R92 47.5k ±1%; 1/10 W
R401 0662057A65 4.7k
R402 0662057A49 1k
R404, 405 0662057A73 10k
R406 0662057A81 22k
R411 0662057A73 10k
R412 0662057A65 4.7k
R417 0662057A97 100k
R418 0662057B05 200k
R419 0662057A25 100 ohms
R420 0662057A97 100k
R421 0662057A43 560 ohms
R422, 423 0662057A65 4.7k
R424 0662057A43 560 ohms
R425, 426 0662057A73 10k
R427 0662057A97 100k
R428 0662057A73 10k
R430 0662057A65 4.7k
R431 0662057A73 10k
R433 0662057A65 4.7k
R435 0662057A43 560 ohms
R440 0662057A65 4.7k
R442 0662057A89 47k
R449 0662057A85 33k
R450, 451 0662057A65 4.7k
R452 0662057A73 10k
R460 0662057B05 200k
R461 0662057A89 47k
R462 0662057B05 200k
R463 0662057B22 1 Meg.
R464 0662057B14 470k
R465, 466 0662057A65 4.7k
R467, 468 0662057A73 10k
R601 0662057A73 10k
R602 0662057R55 7.50k ±1%; 1/10 W
R603 0662057R31 1.21k ±1%; 1/10 W
R604 0662057A69 6.8k
R605 0662057A81 22k
R606 0662057B47 0 ohms
R611 0662057A51 1.2k
R612, 613 0662057C87 3.3k
R614 0662057A49 1k
R615, 616 0662057A73 10k
R617 0662057C87 3.3k
R621 0662057A57 2.2k
R631, 632 0662057A01 10 ohms
R641 0662057R92 47.5k
R642 0662057R67 16.2k
R702 thru 704 0662057A81 22k
R705 0662057A61 3.3k
R706 0662057B05 200k
R711 0662057A81 22k
R712 0662057A57 2.2k
R713 0662057A42 510 ohms
R714 0662057A25 100 ohms
R715 0662057R30 1k ±1%; 1/10 W
R716, 717 0662057R45 3.74k ±1%; 1/10 W
R718 0662057R60 10.0k ±1%; 1/10 W
R719 0662057R30 1k ±1%; 1/10 W
R720 0662057R60 10k ±1%; 1/10 W
R721 0662057A67 5.6k
R722 0662057A81 22k
R723 0662057A97 100k
R724 0662057A61 3.3k
R725, 726 0662057A73 10k
R727 0662057A81 22k
R728 thru 731 0662057G13 100k ±1%
R732 thru 734 0662057A65 4.7k
R736, 737 0662057A65 4.7k
R740 0662057A57 2.2k
R741, 742 0662057A53 1.5k
R743 0662057A49 1k
R5201 0662057A76 13k
R5202 0662057A85 33k
R5203 0662057A69 6.8k
R5204 0662057A25 100 ohms
R5205 0662057A56 2k

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

R5207 0662057B47 0 ohms
R5211 0662057A47 820 ohms
R5212 0662057A67 5.6k
R5221 0662057B01 130k
R5223 0662057A70 7.5k
R5224 0662057A76 13k
R5230 0662057A89 47k
R5240 0683962T49 100 ohms
R5241 0662057B47 0 ohms
R5302 0662057A33 220
R5306 0662057A29 150
R5311, 5312 0662057A76 13k
R5321 0662057A33 220 ohms
R5322 0662057A01 10 ohms
R5323 0662057A36 300 ohms
R5324, 5325 0662057A39 390 ohms
R5327 0662057B47 0 ohms
R5401 0662057A18 51 ohms
R5700 0662057A57 2.2k
R5703 0662057A73 10k
R5704 0662057A37 330
R5705 0662057A73 10k
R5706 0662057A42 510 ohms
R5707 0662057A61 3.3k
R5708, 5709 0662057B05 200k
R5710 0662057A73 10k
R5711 thru 5713 0662057A65 4.7k
R5714 0662057A59 2.7k
R5715 0662057A57 2.2k
R5716, 5717 0662057A56 2k
R5718 0662057A53 1.5k
R5724 thru 5727 0662057A42 510 ohms
R5728 0662057A37 330 ohms
R5729 0662057A29 150 ohms
R5731 thru 5733 0662057A25 100 ohms
R5734 thru 5736 0662057A18 51 ohms
R5737, 5738 0662057A09 22 ohms
R5739, 5740 0662057A18 51 ohms
R5741 0662057A01 10 ohms
R5742 0662057A69 6.8k
R5743 0662057A73 10k
R5744, 5745 0662057A31 180 ohms
R5746 0662057A73 10k
R5747 0662057A69 6.8k
R5748 0662057A09 22 ohms
R5750, 5751 0662057A59 2.7k
R5752 0662057A37 330 ohms
R5753 0662057A13 33 ohms
R5754 0662057A37 330 ohms
R5755 0662057A09 22 ohms
R5756, 5757 0662057A35 270 ohms
R6502 0662057A09 22 ohms
R6503 0662057A01 10 ohms
R6504 0662057A42 510 ohms
R6505 0662057A49 1k
R6506 0662057A09 22
R6512 0662057A25 100 ohms
R6514, 6515 0662057A61 3.3k
R6519 0680361L01 therm 47k
R6520 1705603W01 shunt, 1.639 mH
R6523 thru 6525 0662057A53 1.5k
R6526 0662057A01 10 ohms
R6527, 6528 0662057A43 560 ohms
R6531, 6532 0662057A25 100 ohms
R6537 thru 6539 0662057A17 47 ohms
R6555 0662057A33 220 ohms

switch:

S401 4085797L01 2-position

shield:

E5700 2602660J02 MMIC shield
E5701 2604668E02 VCO shield
E5702, 5703 2602660J02 buffer shield
E5704 2680524L01 synthesizer shield
SH5201 2605261V01 LNA shield
SH5202 2680567V01 mixer shield
SH5203 2680567V01 IF amplifier shield

integrated circuit: (see note)

U101 5180421V01 MC68HC11K1
U102 5108444S61 FLASH memory
U103 5185963A21 SRAM

HLF9007 & HLF9008 Radio, 800 MHz, 15 W PL-201006-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

U104 5108444S49 EEPROM
U105 5113805A30 1 of 8 DCD/demux 74HC138A
U106 5113808A07 AND quad 2 INP MC74AC08D
U201 5105835U45 ASFIC
U202 5113819A04 quad op-amp
U203 5109522E13 switch SPDT
U251 5113818A03 dual op-amp
U401 5109699X01 audio PA
U402 5180173M02 switch 4PDT
U403 5113818A10 dual op-amp
U460 5113818A03 dual op-amp
U601 5105625U25 9.3 V regulator 2941
U631 5105469E65 voltage regulator LP2951AC
U701 5113819A02 quad op-amp
U702 5113811G02 D/A converter 6-bit 4-ch. with SPI
U5201 5180207R01 IFIC
U5211 5185670L01 mixer DBL balanced
U5700 5105279V31 16.8 MHz ref. oscillator
U5701 5105109Z59 MMIC
U5702 5105457W46 frac-N sythesizer
U5703 5113816A07 regulator 5 V 500 mA MC78M05BDT
U5704, 5705 4805921T02 switch FMC2
U5706, 5707 4804122K04 microstrip line resonator
U6501 5113829D22 806-870 MHz, 20 W; 12.5 V
U6502 4805921T02 switch FMC2

Zener diode: (see note 1)

VR101 4813830A23 10 V 5%; 225 mW MMBZ5240BL
VR410 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR412 4813830A40 33 V 5%; 225 mW MMBZ5257B
VR415, 416 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR421, 422 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR425 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR426, 427 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR430 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR431 4813830A27 14 V 5%; 225 mW MMBZ5244L
VR441 4813830A40 33 V 5%; 225 mW MMBZ5257B
VR451 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR621 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR641 4813830A14 5.1 V 5%; 225 mW MMBZ5231B
VR6501 4813830A25 12 V 5%; 225 mW MMBZ5242B

crystal: (see note 2)

Y5201 9102652Y01 filter 45.1 MHz
Y5202 9102652Y02 filter 45.1 MHz
Y5211 4802653Y01 resontator 44.6450 MHz

notes:

1. For optimumperformance, diodes,transistors andintegrated circuits must
be ordered by MOTOROLA part numbers.

2. When ordering quartz crystal units or ceramic resonators, specify carrier
frequency, crystal (or resonator) frequency, and crystal (or resonator) type
number.

Parts List for HLF9007A & HLF9008A Main Boards

June 20, 2000 6880905Z99-O 15

J101

f

1

2

15

4

3

16

14

9

17

7

6

5

8

12

10

CONTROLLER

18

13

11

FLEX

INT_SPKR+

INT_SPKR-

BUS+

PTT

HOOK

MIC

HANDSET_AUDIO

+5V

FLT_A+

GND

SPI_DATA_BUF

SPI_CLCK_BUF

LCD_CE

LED_CE

ANALOG_1

ON_OFF_CONTROL

ANALOG_3

ANALOG_2

J901

18

17

U942

R901

270

TP901

FLT_A+

R902

1K

TP902

VOLUME UP

VOLUME DOWN

ON/OFF

+5V

R922

4.7K

PB918

12

34

56

TOUCH_SW

GOLD_SW_6PGOLD_SW_6P

MENU

+5V

R918

4.7K

PB922

12

34

56

TOUCH_SW

SEL

4

15

16

3

5

C901

47K

470pF

FLT_A+

2

3

VR993

VR902

VR906

NU

5.1v

FLT_A+

NU

VR901

5.1v 5.1v

C973C972

10

2

12

13

14

11

7

C903

NU

9

C911

NU

+5V
FLT_A+

C904

NU

VR0907

VR903

14V

5.1v

R974

1M

8

7

R972

U970

6

5

4

R926

4.7K

R925

4.7K

1

C971

NU

CR925

NC

VR904

14V

VR908

5.1V

R973

200K

C970

2.2UF

R970

47K
R971
200K

VR905

14V

VR909

NU

1

U970

R956

470K

Q925

R957

24K

6

C925

NU

R955

4.7K

R958

4.7K

PB925

12

34

56

TOUCH_SW

8

C915

NU

GOLD_SW_6P

MON

R919

4.7K

PB915

TOUCH_SW

GOLD_SW_6P

PHONE

R915

4.7K

PB913

TOUCH_SW

GOLD_SW_6P

PB916

R920

4.7K

12

34

56

TOUCH_SW

PB917

4

12

34

56

GOLD_SW_6P

SCAN

R917R916

PB921

4

GOLD_SW_6P_SHORT

PB914

4.7K

TOUCH_SW

12

34

56

12

34

56

GOLD_SW_6P

HM

CALL

4.7K

R982

2.2K

14V

R921

4.7K

TOUCH_SW

TOUCH_SW

C902
470pF

+5V

1

2

3

4

5

12

3

56

12

3

56

GOLD_SW_6P_SHORT

J902

1

2

J903

7

6

3

5

8

1

2

4

INT_SPKR+

INT_SPKR-

BUS+

PTT

HOOK

MIC_HI

HANDSET_AUDIO

N.C.

N.C.

GND

R941

10K

Q941

C942
10uF

R942

47K

+5V

R931

N.U.

R980

0

Q953

R932

N.U.

N.U.

C934

0.1UF

R981
200K

R933

100K

C935

0.01UF

NC

NC

NC

NC

U932

21

OSC-IN

24

CLOCK-IN

25

DATA-IN

28

N.C

23

N.C

18

N.C

1

N.C

27

BACKPLANE-IN

26

BACKPLANE-OUT

22

VDD

20

OUTPUT_B-1

19

OUTPUT_B-2

17

OUTPUT_B-3

16

OUTPUT_B-4

15

OUTPUT_B-5

14

OUTPUT_B-6

13

OUTPUT_B-7

12

OUTPUT_B-8

11

OUTPUT_B-9

10

OUTPUT_B-10
OUTPUT_B-11
OUTPUT_B-12
OUTPUT_B-13
OUTPUT_B-14
OUTPUT_B-15
OUTPUT_B-16
OUTPUT_B-17
OUTPUT_B-18
OUTPUT_B-19
OUTPUT_B-20
OUTPUT_B-21
OUTPUT_B-22
OUTPUT_B-23
OUTPUT_B-24
OUTPUT_B-25
OUTPUT_B-26
OUTPUT_B-27
OUTPUT_B-28
OUTPUT_B-29
OUTPUT_B-30
OUTPUT_B-31
OUTPUT_B-32
OUTPUT_B-33

VSS

2

9
8
7
6
5
4

3
44
43
42
41
40
39
38
37
36
35
34
33
32
31

30
29

DISPLAY UNCATALOGED !!!

H931

15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

1
2
3
4
5
6
7
8
9
10
11
12
13
14

FLT_A+

D951

green

R953

10K

D952

green

D953

green

D954

green

Q951

FLT_A+

D941

yellow

D942

yellow

R943

47K

Q942

R944

270

47K

+5V

C941

0.1UF

16

U941

VDD

4

Q1

5

Q2

1

Strobe

15

OE

3

Clock

2

Data

6

Q3

7

NC

Q4

14

NC

Q5

13

Q6

12

Q7

11

Q8

10

QS_

NC

9

QS

VSS

NC

8

D943

red

Q943

R946

R947R945

270

47K

D944
green

Q944

R951

R948

270

20K

R952

20K

D955
green

D956
green

D957
green

D958
green

D959
green

D963

green

D960
green

D964

green

D961
green

D965

green

D966

green

D962
green

ON OFF

LED

(POT)

D967
green

D969
green

D970
green

Q952

R954

10

Schematic Diagram

or FLN8744A Control Head

16 6880905Z99-O June, 2000

R0926
C0925
C0903
C0915
C0911

C0904

J0902

1

U942

U0903

CR925

VR906

VR907

1

C791

C793

C792

18

1

J0901

R0915

PB0922

D0943

D0964

D0942

D0941

PB0921

D0944

D0960

D0951

PB0925 PB0915

R958

R0916

R0921R0922

D0953

D0954

D0955

40

1

6

R0920

39

VIEWED FROM SIDE 1

D0957

D0958

VIEWED FROM SIDE 2

U0932

7

H0931

PB0916

D0961

D0962

D0959

29

17

R955

R0919

D0965

D0966

VR908

28

C0934

R0933

1

C0935

18

89

R981

R980

Q0941

U0941

D0969

D0970

D0963

PB0917 PB0918

VR909

Q953

R0931

R0941

16

R0918

R0951

R0942

R0952
R0953

C0941

C0942

+

R0954

R0917

Q0952

Q0951

D0956

PB0913

D0952

PB0914

D0967

R0946

R0947R0932

R0944

Q0944

R0948

R0945

Q0943

R0943

Q0942

R0925

Q0925

R956

R957

VR0903

VR0904

U970

R971

14

C0970

TP0901

R973R0902

R974R972

+

R970

58

VR0993

R982

TP0902

C0901

VR0901

R0901

C0902

VR0905VR0902

Parts List

FLN8744A Control Head Board PL-201002-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

capacitor, fixed: uF +/-5%; 50 V:

C970 2311049A09 2.2
C901, 902 2113741F17 470 pF
C934 2113743K15 ceramic 0.1 pF
C935 2113741F49 0.01 pF
C941 2113743K15 ceramic 0.1
C942 2311049J23 tantalum 10 10%; 7 V

CR925 4813833C02 dual 70 V common cathode

D941, 942 4805729G73 yellow
D943 4805729G74 red
D944 4805729G75 green
D951 thru 967 4805729G75 green
D969, 970 4805729G75 green

H931 7202662Y01 display_LCD

J901 0902636Y01 connector, flex cable, side entry
J902 2809926G01 SMT header
J903 2805924V01 mic connector

Q925 4880048M01 NPN DIG 47k/47k
Q941 4880048M01 NPN DIG 47k/47k
Q942 thru 944 4813824A10 NPN 40 V 0.2A general purpose
Q951 4813824A10 NPN 25 V 5A
Q952 4813822A20 NPN_MJD200T4

R955 0662057A65 4.7k
R956 0662057A89 47k
R957 0662057A82 24k
R958 0662057A65 4.7k
R970 0662057A89 47k
R971 0662057B05 200k
R972 0662057B14 470k
R973 0662057B05 200k
R974 0662057B22 1 Meg.
R980 0662057B47 0 ohm
R981 0662057B05 200k
R982 0662057A57 2.2k
R901 0662057C61 270 ohms
R902 0662057A49 1k
R915 thru 922 0662057A65 4.7k
R925, 926 0662057A65 4.7k
R933 0662057A97 100k
R941 0662057A73 10k
R942, 943 0662057A89 47k
R944 0662057C61 270 ohms
R945 0662057A89 47k
R946 0662057C61 270 ohms
R947 0662057A89 47k
R948 0662057C61 270 ohms
R951 0662057A80 20k
R952 0662057A80 20k
R953 0662057A73 10k
R954 0680194M01 10 ohms

U942 1805642V01 potentiameter switch
U970 5113818A03 high performance single supply
U932 5105625U61 MM5453VX
U941 5113806A35 MC14094B

VR908 4813830A14 5.1 V 5% 225 mW MMBZ5231B
VR901 thru 907 4813830A27 14 V 5% 225 mW MMBZ5244L
VR993 4813830A27 14 V 5% 225 mW MMBZ5244L

note: For optimum performance, diodes, transistors, and integrated circuits
must be ordered by Motorola part numbers.

unless otherwise stated

diode: (see note)

light emitting diode: (see note)

connector, receptacle:

transistor: (see note)

resistor, fixed: +/-5%; 1/8 W:

unless otherwise stated

integrated circuit: (see note)

Zener diode: (see note)

Circuit Board Details & Parts List for FLN8744A

Control Head

June, 2000 6880905Z99-O 17

M

Parts List

GTX Mechanical Parts List; 35 W PL-201005-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

1 3605422W02 exterior volume knob
2 5480643K01 logo label
3 3608147K01 interior volume knob
4 1580356K01 housing
5 3280511L01 LCD frame gasket
6 7580358K01 keypad
7 7202631Y01 LCD display
8 2802638Y02 connector
9 0780360K01 LCD frame
10 FLN8744 control head board
11 8402618Y01 flexible circuit
12 3202620Y01 control head gasket
13, 14, 15 0185808L01 assembly, cover
16 ---- main board
17 2680565V01 PA shield
18 0310907A20 mechanical screw, M3x0.5x18
19 3080562V01 power cable
20 2680567V01 PM shield
21 4205938V01 clip spring
22 FHN5875 accessory kit
23 3202606Y01 accessory connector gasket
24 4280587L01 accessory clamp
25 2680547V01 chassis
26 ---- FCC label
27 7585697M01 speaker pad
28 2802638Y01 connector
29 5080442U02 speaker
30, 31, 32 HLN9640 trunnion kit

non-referenced items

54-85743M01 LABEL

14

15

16

17

18

20

19

21

24

23

22

25

13

12

11

10

9

8

7

6

5

27

30

26

32

4

3

2

28

1

31

29

RPD-20101-0

GTX Exploded View &

echanical Parts List, 35 W

18 6880905Z99-O June 9, 2000

15

13

14

16

18

17

19

23

22

21

20

Parts List

GTX Mechanical Parts List; 15 W PL-201004-O

REFERENCE MOTOROLA

SYMBOL PART NO. DESCRIPTION

1 3605422W02 exterior volume knob
2 5480643K01 logo label
3 3608147K01 interior volume knob
4 1580356K01 housing
5 3280511L01 LCD frame gasket
6 7580358K01 keypad
7 7202631Y01 LCD display
8 2802638Y02 connector
9 0780360K01 LCD frame
10 FLN8744 control head board
11 8402618Y01 flexible circuit
12 3202620Y01 control head gasket
13 2680439K01 cover shield
14 3202619Y01 cover gasket
15 1580355K01 cover assembly
16 ---- main board
17 2680519K01 PA shield
18 0310907A20 mechanical screw, M3x0.5x10
19 4205938V01 clip spring
20 4280587L01 accessory clamp
21 3202606Y01 accessory connector gasket
22 FHN5875 accessory kit
23 2780354K01 chassis
24 ---- FCC label
25 7585697M01 speaker pad
26 2802638Y01 connector
27 5080442U02 speaker
28, 29 GLN7317 trunnion kit

12

10

11

9

8

7

6

25

24

5

29

4

3

26

2

1

28

27

RPD-20102-0

GTX Exploded View &

Mechanical Parts List, 15 W

June 9, 2000 6880905Z99-O 19

REPLACEMENT PARTS ORDERING

ORDERING INFORMATION

When ordering replacement parts or equipment information, the complete identification number should
be included. This applies to all components, kits, and chassis. If the component part number is not known,
the order should include the number of the chassis or kit of which it is a part, and sufficient description of
the desired component to identify it.

Crystal and channel element ordersshouldspecifythecrystalorchannelelementtypenumber, crystal and
carrier frequency, and the model number in which the part is used.

Orders for active filters, Vibrasender and Vibrasponder resonant reeds should specify type number and
frequency, should identify the owner/operator of the communications system in which these items are to
be used, and should include any serial numbers stamped on the components being replaced.

MAIL ORDERS

Send written orders to the following addresses:

Replacement Parts/

Federal Government Orders:

Test Equipment/Manuals

Motorola Inc.
Crystal Service Items:
Motorola Inc.
Americas Parts Division
Attention: Order Processing

Americas Parts Division

Attention: Order Processing

7230 Parkway Drive

Landover, MD 21076
1313 E. Algonquin Road
Schaumburg, IL 60196

Americas Parts Division:
1-800-826-1913 (For Federal Government Orders)
Call: 847-576-8012
1-847-538-8023 (International Orders)

Americas Parts Division:FAX: [phone]
(Domestic)
847-576-3023 (International)
Parts ID: 847-538-8194
Telex: 280127 (Domestic)
403305 (International)

International Orders:

Motorola Inc.
Americas Parts Division
Attention: International
Order Processing
1313 E. Algonquin Road
Schaumburg, IL 60196

TELEPHONE ORDERS

TELEX/FAX ORDERS

Federal Government Orders:
FAX: [phone]

PARTS CUSTOMER SERVICE PRODUCT CUSTOMER SERVICE

Americas Parts Division:
Call: 1-800-422-4210

Parts Identification:
Call: 847-538-0021

Customer Response Center
(Sales and Service Assistance):

Call: 1-800-247-2346
FAX: [phone]

6880905Z99-O

Motorola, Inc.
Radio Products Group
1000 W. Washington St.
Mt. Pleasant, IA 52641

Copyright© 2000 Motorola, Inc.
All Rights Reserved

Printed In U.S.A.