GTX LTR ® / Privacy Plus ® 900 MHz Mobile Radio Service Manual 6880906Z19-O
GTXLTR® / Privacy Plus ®
900 MHzMobile Radio
Service Manual
6880906Z19-O
Product Software License AgreementTHIS LICENSE AGREEMENT BETWEEN YOU, THE USER, AND MOTOROLA, APPLIES TO THE SOFTWAREEMBEDDED IN OR DELIVERED WITH THE ACCOMPANYING MOTOROLA PRODUCT (“SOFTWARE”),AND IS APPLICABLE UNLESS A SIGNED LICENSE AGREEMENT COVERING ITS SUBJECT MATTER HASBEEN EXECUTED BETWEEN YOU AND MOTOROLA. BY USING THE PRODUCT, YOU ACKNOWLEDGETHAT THIS AGREEMENT HAS BEEN READ AND UNDERSTOOD AND THAT YOU AGREE TO BE BOUNDBY ITS TERMS AND CONDITIONS. IF YOU DO NOT AGREE, YOU ARE NOT LICENSED TO USE THE PROD-UCT, AND IF YOU ARE THE PURCHASER OF THE PRODUCT, YOU SHOULD IMMEDIATELY RETURN THEPRODUCT 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 documenta-tion 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 transfereeagrees 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 SOFTWAREelectronically; 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 FROMTHE USE OF THIS SOFTWARE.
With respect to the U.S. Government, if acquired under FAR policy (52.227-19), the SOFTWARE is provided withRestricted Rights, and if acquired under DFARS policy (227.7202), then the SOFTWARE is provided only with thecommercial rights of this Agreement.
This license is effective until terminated. It will terminate immediately and automatically if You fail to comply withany term of this Agreement.
You agree that this is the complete and exclusive statement of the agreement between You and Motorola and thatany modification of these terms shall be made only by mutual agreement and evidenced by written amendmentsigned by both parties. This Agreement shall be governed and interpreted by the laws of the State of Illinois,United States of America.
Computer Software CopyrightsThis manual may not be reproduced, in whole or in part, in any form whatsoever, without the express written permis-sion of Motorola, Inc.
The Motorola products described in this manual contain one or more computer programs. These computer pro-grams are protected by copyright law and international treaties. Unauthorized reproduction or distribution ofthese programs, or any part thereof, may result in severe civil and criminal penalties, and will be prosecuted to themaximum extent possible under the law. U.S. and international patents pending.
, MOTOROLA, and PRIVACY PLUS are registered trademarks of Motorola, Inc.GTX is a trademark 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.
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Table of Contents
ForewordScope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viHow to Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viTechnical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viService Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viOrdering Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viModel Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiAccessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ixMaintenance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xRadio Model Numbering System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
Section 1Introduction
Notational Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Warning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Scope of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Air Bag Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Vehicles Equipped with Air Bags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2LP Gas Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Section 2Basic Maintenance
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Plastic Surfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Circuit Boards and Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safe Handling of CMOS Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Repair Procedures and Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Parts Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Rigid Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Chip Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Chip Component Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Chip Component Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Over-Molded Pad-Array Carrier (OMPAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3OMPAC Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3OMPAC Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Shields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Shield Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Shield Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Replacement of Transistor Q6505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
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Table of Contents GTX LTR / Privacy Plus 900 MHz Mobile Radio Service Manual
Removing Faulty Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Preparing Main Board for New Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Positioning New Transistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Soldering Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Installing Flange Capacitors C6567 and C6568. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Reassembly of Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Section 3Test Equipment, Service Aids, and Tools
Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Field Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Section 4Test Mode, Error Codes and Performance Tests
Front Panel Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Test Mode/Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Test Mode/Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Test Mode/Tx Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Fail Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Exiting Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Section 5Disassembly & Reassembly For 12 W Models
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Disassemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Remove the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Remove the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Remove the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Disassemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Assemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Assemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Replace the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Replace the Top Cover and Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Section 6Disassembly & Reassembly For 30 W Models
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Disassemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Remove the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Remove the Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Remove the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Disassemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Assemble the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Assemble the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Replace the Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3Replace the Top Cover and Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
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Section 7Radio Tuning Procedure
Radio Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Starting the Tuning Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Alignment Default Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Tx Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Transmitter Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2Transmit Current Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Transmit Deviation Balance (Compensation) & Deviation Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Transmit Deviation Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Ending the Tuning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Section 8Theory of Operation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Receiver Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2Transmitter Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
12 Watt PA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-330 Watt PA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3Power Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Power Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4Current Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4Thermal Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Synthesizer Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4Controller Detailed Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6Voltage Regulators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6Electronic On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6Mechanical On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7Hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7Microprocessor Clock Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7SBEP Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7Microprocessor (Open Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7One-Time Programmable (Flash) Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8Electrically Erasable Programmable Memory (EEPROM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8Static Random Access Memory (SRAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Controller Audio & Signaling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Audio Signalling Filter IC (ASFIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9Audio Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Transmit Audio Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10Mic Input Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10Flat Tx Audio Input Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10PTT Sensing and TX Audio Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Transmit Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10Sub-audible Data (PL/DPL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11High Speed Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11Dual Tone Multiple Frequency (DTMF) Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Receive Audio Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
iv 6880906Z19-O September, 2000
Table of Contents GTX LTR / Privacy Plus 900 MHz Mobile Radio Service Manual
Audio Processing and Digital Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13Audio Amplification Speaker (+) Speaker (-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13Handset Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13External Rx Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Receive Signalling Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14Sub-audible Data (PL/DPL) and High Speed Data Decoder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14Alert Tone Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15Hear Clear IC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15Transmit Path for Radios with Hear Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15Receive Path for Radios with Hear Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15Hear Clear Routing of Data/Signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
Accessory Connector Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16Remote Desk Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16Public Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17External Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17RSSI Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Section 9Troubleshooting
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1Troubleshooting Flow Chart for Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2Troubleshooting Flow Chart for Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4Troubleshooting Flow Chart for 12 W Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6Troubleshooting Flow Chart for 30 W Power Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7Troubleshooting Flow Chart for Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8Troubleshooting Flow Chart for Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
Schematic Diagrams, Circuit Board Details, and Parts ListsSchematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,
Radio Block Diagram Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Schematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,Receiver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Schematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,Synthesizer Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Schematic Diagram for HLF9003A & HLF9004A Main Boards, Power Amplifier Section . . . . . . . . . . . . . . . . . .4
Schematic Diagram for HLF9003A & HLF9004A Main Boards, Power Control Section . . . . . . . . . . . . . . . . . . . .5
Schematic Diagram for HLF9009A & HLF9010A Main Boards, Power Amplifier Section . . . . . . . . . . . . . . . . . .6
Schematic Diagram for HLF9009A & HLF9010A Main Boards, Power Control Section . . . . . . . . . . . . . . . . . . . .7
Schematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,Controller Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Schematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,Audio & Digital Controller Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Schematic Diagram for HLF9003, HLF9004A, HLF9009A & HLF9010A Main Board,Audio PA & I/O Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Schematic Diagram for HLF9003A, HLF9004A, HLF9009A & HLF9010A Main Boards,Supply Voltage Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Schematic Diagram for HLF9003, HLF9004A, HLF9009A & HLF9010A Main Board,Hear Clear Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Circuit Board Details for HLF9003A & HLF9004A Main Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Parts List for HLF9003A & HLF9004A Main Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Circuit Board Details for HLF9009A & HLF9010A Main Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Parts List for HLF9009A & HLF9010A Main Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
September, 2000 6880906Z19-O v
GTX LTR / Privacy Plus 900 MHz Mobile Radio Service Manual Table of Contents
Schematic Diagram for FLN8744A Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Circuit Board Details & Parts List for FLN8744A Control Head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
GTX Exploded View & Mechanical Parts List, 30 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
GTX Exploded View & Mechanical Parts List, 12 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
vi 6880906Z19-O September, 2000
Foreword GTX LTR / Privacy Plus 900 MHz Mobile Service Manual
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 theequipment described and is current as of the printingdate. Changes which occur after the printing date areincorporated by service manual revisions. These revi-sions are added to the manuals as the engineeringchanges are incorporated into the equipment.
How to Use This Manual
This manual contains introductory material such asmodel charts, accessories, and specifications, as well asfour sections that deal with specific service aspects ofthe GTX Mobile Radio. Refer to the Table of Contentsfor a general overview of the manual, or to the “Over-view” paragraph in each section for a specific overviewof the information in that section.
Technical Support
To obtain technical support, you may call Motorola’sRadius Product Services. When you call, we ask thatyou have ready the model and serial numbers of therespective radio or its parts.
Service Policy
If malfunctions occur within 30 days that cannot beresolved over the phone with Product Services, adefective major component should be returned. Youmust obtain authorization from Radius Product Ser-vices before returning the component.
Ordering Replacement Parts
You can order additional components and some pieceparts directly through your Radius price pages. Whenordering replacement parts, include the complete iden-tification number for all chassis, kits, and components.If you do not know a part number, include with your
order the number of the chassis or kit which containsthe part, and a detailed description of the desired com-ponent. If a Motorola part number is identified on aparts list, you should be able to order the part throughMotorola Parts. If only a generic part is listed, the partis not normally available through Motorola. If no partslist is shown, generally, no user serviceable parts areavailable for the kit.
Radius 30-Day WarrantyTechnical SupportRadius Product Services8000 W. Sunrise Blvd.Plantation, FL 33322
Motorola Radio Support CenterAttention: Warranty Return3761 South Central AvenueRockford, IL 61102 USA1-800-227-6772 (U.S. & Canada)
Radius Major Component RepairMotorola Radio Support Center3760 South Central AvenueRockford, IL 61102 USA
Motorola PartsWorldwide System andAftermarket Products DivisionAttention: Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196
Worldwide System andAftermarket Products DivisionAttention: International Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196
Customer Service1-800-422-42101-847-538-8198 (FAX)
Parts Identification1-847-538-00211-847-538-8194 (FAX)
September, 2000 6880906Z19-O vii
GTX LTR / Privacy Plus 900 MHz Mobile Service Manual Foreword
Model Chart
Model Chart
Des
crip
tion
GT
X P
rivac
y P
lus,
900
MH
z, 1
2.5
kHz,
12
W
GT
X L
TR
, 900
MH
z, 1
2.5
kHz,
12
W
GTXLTR / Privacy Plus
Mobile Radio900 MHz
12 Watts RF Power
Des
crip
tion
Har
dwar
e K
it
Mai
n B
oard
, Priv
acy
Plu
s, 1
2.5
kHz,
12
W
Mai
n B
oard
, LT
R, 1
2.5
kHz,
12
W
Con
trol
Hea
d B
oard
Fre
q..
8 8
Mod
el
M11
WG
D4C
B1_
N
M11
WG
D4C
U1_
N
Item
HLN
9634
_
HLF
9009
_
HLF
9001
0_
FLN
8744
_
Item DescriptionX HUF3029_ Radio, Privacy Plus, 12.5 kHz, 12 W X
X HUF3031_ Radio, LTR, 12.5 kHz, 12 W XX HUF3030_ Unified Chassis, Privacy Plus, 12.5 kHz, 12 W X
X HUF3032_ Unified Chassis, LTR, 12.5 kHz, 12 W XX X HCN3018_ Control Head XX X HMN3413_ Compact MicrophoneX X GLN7317_ TrunnionX X GKN6270_ Power CableX X 6880907Z66 Installation ManualX X 6880907Z20 GTX LTR User’s Guide (English/French)X X 6880907Z19 GTX Privacy Plus User’s Guide (English/French)
viii 6880906Z19-O September, 2000
Foreword GTX LTR / Privacy Plus 900 MHz Mobile Service Manual
Model Chart
Des
crip
tion
GT
X P
rivac
y P
lus,
900
MH
z, 1
2.5
kHz,
30
W
GT
X L
TR
, 900
MH
z, 1
2.5
kHz,
30
W
GTXLTR / Privacy Plus
Mobile Radio900 MHz
30 Watts RF Power
Des
crip
tion
Har
dwar
e K
it
Mai
n B
oard
, Priv
acy
Plu
s, 1
2.5
kHz,
30
W
Mai
n B
oard
, LT
R, 1
2.5
kHz,
30
W
Con
trol
Hea
d B
oard
Fre
q. 8 8
Mod
el
M11
WR
D4C
B1_
N
M11
WR
D4C
U1_
N
Item
HLN
9634
_
HLF
9003
_
HLF
9004
_
FLN
8744
_
Item DescriptionX HUF3007_ Radio, Privacy Plus, 12.5 kHz, 30 W X
X HUF3011_ Radio, LTR, 12.5 kHz, 30 W XX HUF3009_ Unified Chassis, Privacy Plus, 12.5 kHz, 30 W X
X HUF3013_ Unified Chassis, LTR, 12.5 kHz, 30 W XX X FCN3018 Control Head XX X HMN3413_ Compact MicrophoneX X HLN9640_ TrunnionX X HKN4191_ Power CableX X 6880907Z66 Installation ManualX X 6880907Z20 GTX LTR User’s Guide (English/French)X X 6880907Z19 GTX Privacy Plus User’s Guide (English/French)
September, 2000 6880906Z19-O ix
GTX LTR / Privacy Plus 900 MHz Mobile Service Manual Foreword
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
GLN7317 Trunnion Kit; 12 W
Cables
HKN4191 Power Cable; 30 W
GKN7270 Power Cable; 12 W
GKN6271 Ignition Sense Cable
GKN6272 External Alarm Relay and Cable
Antennas
RRA4935 900 MHz, 3 dB Gain w/14 ft. Cable
Control Station
RLN4834 Control Station Package; 30 W
HLN3067 Control Station Package; 12 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)
6880907Z19 GTX Privacy Plus User’s Guide (English/French)
6880907Z66 Installation Manual
RVN4150 GTX Radio Service Software Kit
x 6880906Z19-O September, 2000
Foreword GTX LTR / Privacy Plus 900 MHz Mobile Service Manual
Maintenance Specifications
Maintenance Specifications
GENERAL
TRANSMITTER
RECEIVER
Frequency: 900 MHz
Model Number: M11WRD4CB1_N, M11WRD4CU1_N M11WGD4CB1_N, M11WGD4CU1_N
RF Output: 30 W 12 W
RF Output (Talkaround): 20 W 10 W
FCC Description: ABZ99FT3004 AZ492FT5782
Dimensions (H x W x L): 1.73” x 6.61” x 8.62”(44mm x 168mm x 219mm)
1.73” x 6.61” x 6.67””(44mm x 168mm x 169mm)
Weight: 4.30 lb(1.95 kg)
2.67 lb(1.21 kg)
Frequency Range *:TransmitTalkaroundReceive
896 – 941 MHz896 – 902 MHz935 – 941 MHz935 – 941 MHz
Channel Spacing: 12.5 kHz
Channel Capacity: 10 Trunked Modes / 10 Conventional Channels
Group Capacity: 8 Trunked Talkgroups
Frequency Stability: 1.5 ppm
Input Voltage: 13.6 V dc 13.8 V dc
Temperature Range:OperatingStorage
-30 to +60°C-40 to +85°C
Tx Current: 12.0A (30 W) 6.0A (12 W)
* 821 - 825 MHz & 866 - 870 MHz is available outside of the U.S.
Power Output: 30 W (896 – 902 MHz)20 W (935 – 941 MHz)
12 W (896 – 902 MHz)10 W (835 – 941 MHz)
Channel Spacing: 12.5 kHz
Maximum Frequency Separation: 6 MHz
Modulation Limiting: 2.5 kHz
FM Hum & Noise: -35 dB
Conducted / Radiated Emission: -13 dBm
Audio Response (300-3000 Hz): +1 to -3 dB
Audio Distortion: Less than 5%
Channel Spacing: 12.5 kHz
Sensitivity (12dB SINAD): 0.35µV
Intermodulation: -65 dB
Adjacent Channel Selectivity: -65 dB
Spurious Rejection: -65 dB
Audio Output Power: 4W (internal speaker)7.5W (external speaker)
Audio Distortion @ Rated Audio: 5%
Current Drain:OFFStandbyRated
30 mA450 mA
1.5A (4W internal speaker)1.7A (7.5W external speaker)
Conducted Spurious Emission: Per FCC part 90
September, 2000 6880906Z19-O xi
GTX LTR / Privacy Plus 900 MHz Mobile Service Manual Foreword
Maintenance Specifications
MIL STANDARDS- THE GTX MOBILE RADIO IS DESIGNED TO MEET OR EXCEED MOST REQUIREMENTSFOR MIL STD 810 C, D, AND E
All specifications subject to change without notice.
Applicable MIL-STD:
810C 810D 810E
Methods Procedures Methods Procedures Methods ProceduresLow 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
xii 6880906Z19-O September, 2000
Foreword GTX LTR / Privacy Plus 900 MHz Mobile Service Manual
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 ofyour radio.
All GTX LTR and Privacy Plus radio models are synthesized, 8 trunked mode, 10-conventional channel units thatcome standard with Tone Private-Line (TPL)/Digital Private-Line (DPL) coded squelch or carrier squelch, whichmay be enabled/disabled on a per channel basis. Programming changes can be made by your local dealer.
M 1 1 W R D 4 C B 1 A N
Position 1 - Type of UnitM = Mobile
Model Number:
Position: 1 2 3 4 5 6 7 8 9 10 11 12
Position 4 - Frequency Band
Position 2 & 3 - Model Series
Position 5 - Power Level
Position 6 - Physical Package
Position 12 -
Position 10 - Feature Level
Position 8 - Primary Operation
Position 11- Version
Position 9 - Primary System Type
896-941 MHz
30 W
Standard Control with Display
Position 7 - Channel Spacing12.5 kHz
Unique Model Variations
Standard Package
Version Letter (Alpha) - Major Change
Basic
Privacy Plus®
Trunked Twin Type
GTX Privacy Plus
M 1 1 W R D 4 C U 1 A N
Position 1 - Type of UnitM = Mobile
Model Number:
Position: 1 2 3 4 5 6 7 8 9 10 11 12
Position 4 - Frequency Band
Position 2 & 3 - Model Series
Position 5 - Power Level
Position 6 - Physical Package
Position 12 -
Position 10 - Feature Level
Position 8 - Primary Operation
Position 11- Version
Position 9 - LTR
896-941 MHz
30 W
Standard Control with Display
Position 7 - Channel Spacing12.5 kHz
Unique Model Variations
Standard Package
Version Letter (Alpha) - Major Change
Basic
Trunked Twin Type
GTX LTR
September, 2000 6880906Z19-O xiii
GTX LTR / Privacy Plus 900 MHz Mobile Service Manual Foreword
Radio Model Numbering System
M 1 1 W G D 4 C B 1 A N
Position 1 - Type of UnitM = Mobile
Model Number:
Position: 1 2 3 4 5 6 7 8 9 10 11 12
Position 4 - Frequency Band
Position 2 & 3 - Model Series
Position 5 - Power Level
Position 6 - Physical Package
Position 12 -
Position 10 - Feature Level
Position 8 - Primary Operation
Position 11- Version
Position 9 - Primary System Type
896-941 MHz
12 W
Standard Control with Display
Position 7 - Channel Spacing12.5 kHz
Unique Model Variations
Standard Package
Version Letter (Alpha) - Major Change
Basic
Privacy Plus®
Trunked Twin Type
GTX Privacy Plus
M 1 1 W G D 4 C U 1 A N
Position 1 - Type of UnitM = Mobile
Model Number:
Position: 1 2 3 4 5 6 7 8 9 10 11 12
Position 4 - Frequency Band
Position 2 & 3 - Model Series
Position 5 - Power Level
Position 6 - Physical Package
Position 12 -
Position 10 - Feature Level
Position 8 - Primary Operation
Position 11- Version
Position 9 - LTR
896-941 MHz
12 W
Standard Control with Display
Position 7 - Channel Spacing12.5 kHz
Unique Model Variations
Standard Package
Version Letter (Alpha) - Major Change
Basic
Trunked Twin Type
GTX LTR
xiv 6880906Z19-O September, 2000
Foreword GTX LTR / Privacy Plus 900 MHz Mobile Service Manual
Radio Model Numbering System
September, 2000 6880906Z19-O 1-1
Section 1Introduction
Notational Conventions
Throughout the text in this publication, you will noticethe use of warnings, cautions, and notes. These nota-tions are used to emphasize that safety hazards exist,and care must be taken and observed.
Warning
WARNING
Indicates a potentially hazardous situa-tion which, if not avoided, COULD resultin death or serious injury.
Caution
CAUTIONIndicates a potentially hazardous situa-tion which, if not avoided, MAY resultin minor or moderate injury. CAUTIONmay also be used to alert against unsafepractices and property-damage-onlyaccident hazards.
Note
NOTEAn operational procedure, practice, orcondition, etc., which it is essential toemphasize.
Scope of this Manual
This manual includes model/kit information, specifi-cations, disassembly/reassembly procedures, mainte-nance, alignment, troubleshooting, and all theory,schematic diagrams, printed circuit board details andparts lists for all parts in the equipment described.
CAUTIONThis manual is intended for use by expe-rienced technicians who are familiarwith similar types of equipment.
Safety information
Every radio, when transmitting, radiates energy intothe atmosphere which may, under certain conditions,causes the generation of a spark.
All users of vehicles fitted with radios should be awareof the following warnings:
WARNING
• Do not operate the radio near flamma-ble liquids or in the vicinity of explo-sive devices.
• During normal use, the radio will sub-ject you to radio energy substantiallybelow the level where any kind ofharm is reported.
To ensure personal safety, please observe the followingsimple rules:
WARNING
• Do not transmit when the antenna isvery close to, or touching, exposedparts of the body, especially the faceand eyes.
• Do not hold the transmit (PTT) key inwhen not desiring to transmit.
• Check the laws and regulations on theuse of two-way mobile radios in theareas where you drive. Always obeythem. Also, when using your radiowhile 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 con-ditions so require.
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Introduction GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Air Bag Warning
Air Bag Warning
Vehicles Equipped with Air Bags
WARNING
An air bag inflates with great force. Donot place objects, including communica-tion equipment, in the area over the airbag or in the air bag deployment area. Ifthe communicat ion equipment isimproperly installed and the air baginflates, this could cause serious injury.
Installation of vehicle equipment should be performedby a professional installer/technician qualified in therequirements for such installations.
An air bag’s size, shape and deployment area can varyby vehicle make, model and front compartment config-uration (e.g., bench seat vs. bucket seats). Contact thevehicle manufacturer’s corporate headquarters, if nec-essary, for specific air bag information for the vehiclemake, model and front compartment configuration
involved in your communication equipment installa-tion.
LP Gas Warning
WARNING
It is mandatory that radios installed invehicles fueled by liquefied petroleumgas conform to the National Fire Protec-tion Association standard NFPA 58,which applies to vehicles with a liquidpropane (LP) gas container in the trunkor other sealed off space within the inte-rior of the vehicle. The NFPA 58 requiresthe following:
• Any space containing radio equip-ment shall be isolated by a seal fromthe space in which the LP gas con-tainer and its fittings are located.
• Removable (outside) filling connec-tions shall be used.
• The container space shall be vented tothe outside.
September, 2000 6880906Z19-O 2-1
Section 2Basic Maintenance
Introduction
This section of the manual describes preventive main-tenance, safe handling of CMOS devices, and repairprocedures and techniques. Each of these topics pro-vides information vital to the successful operation andmaintenance of your radio.
Preventive Maintenance
The radios do not require a scheduled preventivemaintenance program; however, periodic visualinspection and cleaning is recommended.
Inspection
Check that the external surfaces of the radios are clean,and that all external controls and switches are func-tional. A detailed inspection of the interior electroniccircuitry is not needed or desired.
Cleaning
CAUTIONThe effects of certain chemical and theirvapors can have harmful results on cer-tain plastics. Aerosol sprays, tunercleaners, and other chemicals should beavoided.
The following procedures describe the recommendedcleaning agents and the methods to be used whencleaning the external and internal surfaces of the radio.External surfaces include the front cover, housing andassembly. These surfaces should be cleaned whenevera visual inspection reveals the presence of smudges,grease, and/or grime. Internal surfaces should becleaned only when the radio is disassembled for servic-ing or repair.
The only recommended agent for cleaning the externalradio surfaces is a 0.5%solution of mild dishwashingdetergent in water. the only factory recommended liq-uid for cleaning the printed circuits boards and theircomponents is isopropyl alcohol (70% by volume).
Plastic Surfaces
The detergent solution should be applied sparinglywith a stiff non-metallic, short-bristled brush to workall loose dirt away from the radio. A soft, absorbent,
lint-free cloth or tissue should be used to remove thesolution and dry the radio. Make sure that no waterremains entrapped near the connectors, cracks, or crev-ices.
Circuit Boards and Components
Isopropyl alcohol may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded orcaked material located in hard-to-reach areas. Thebrush stroke should direct the dislodged material outand away from the inside of the radio.
CAUTIONAlcohol is a high-wetting liquid and cancarry contamination into unwantedplaces if an excessive quantity is used.
Make sure that controls or tunable components are notsoaked with the liquid. Do not use high-pressure air tohasten the drying process. This could cause the liquidto puddle and collect in unwanted places. Upon com-pletion of the cleaning process, use a soft, absorbent,lint-free cloth to dry the area. Do not brush or applyany isopropyl alcohol to the frame, front cover, or backcover.
NOTEAlways use a fresh supply of isopropylalcohol and a clean container to preventcontamination by dissolved materialfrom previous usage.
Safe Handling of CMOS DevicesComplementary metal-oxide semiconductor (CMOS)devices are used in this family of radios. While theattributes of CMOS are many, their characteristicsmake them susceptible to damage by electrostatic orhigh voltage charges. Damage can be latent, resultingin failures occurring weeks or months later. Therefore,special precautions must be taken to prevent devicedamage during disassembly, troubleshooting, andrepair. Handling precautions are mandatory for CMOScircuits and are especially important in low humidityconditions.
CAUTIONDo not attempt to disassemble the radiowithout observing the following han-dling precautions.
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Basic Maintenance GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Repair Procedures and Techniques
Precautions
1. Eliminate static generators (plastics, stryo-foam, etc. in the work area.
2. Remove nylon or double-knit polyester jack-ets, roll up long sleeves, and remove or tieback loose hanging neckties.
3. Store and transport all static-sensitive devicesin ESD-protective containers.
4. If at all possible, handle CMOS devices by thepackage and not by the leads. Prior to touch-ing the unit, touch an electrical ground toremove any static charge that you may haveaccumulated. The package and substrate maybe electrically common. If so, the reaction of adischarge to the case would cause the samedame as touching the leads.
5. Disconnect all power from the unit beforeESD-sensitive components are removed orinserted unless otherwise noted.
6. Use a static safeguarded workstation, whichcan be accomplished through the use of ananti-static kit (Motorola part number0180386A82). This kit includes a writ strap,two ground cords, a static-control table matand a static-control floor mat. For additionalinformation, refer to Service and Repair NoteSRN F1052, “Static Control Equipment forServicing ESD Sensitive Products”, availableform Motorola Literature Distribution 2290Hammond Drive Schaumburg, IL 60173 (847)576-2826.
When these items are not readily available,observing the following techniques will mini-mize chance of damage.
• If a static-sensitive device is to be temporarilyset down, use a conductive surface for place-ment of the device.
• Make skin contact with a conductive work sur-face first and maintain this contact when thedevice is set down or picked up.
7. Always wear a conductive strip when servic-ing this equipment. the Motorola part numberfor a replacement wrist strap that connects tothe table mat is 42-80385A59.
8. When straightening CMOS pins, provideground straps for apparatus used.
9. When soldering, use a grounded solderingiron.
Repair Procedures and Techniques
The radio support center is at the following addresses:
Motorola Radio Support Center3651 South Central AvenueRockford, Ill, 61102Telephone: (800) 227-6772(815) 847-1400
Refer to the Disassembly and Reassembly section ofthe manual for pertinent information prior to replacingand substituting parts.
Parts Replacement
Special care should be taken to be as certain as possiblethat a suspected component is actually the one at fault.This special care will eliminate unnecessary unsolder-ing and removal of parts, which could damage orweaken other components or the printed circuit boarditself.
When damaged parts are replaced, identical partsshould be used. If the identical replacement compo-nent is not locally available, check the parts list for theproper Motorola part number and order the compo-nent from the nearest Motorola Communications Partsoffice.
Rigid Circuit Boards
This family of radios uses bonded, multi-layer, printedcircuit boards. Since the inner layers are not accessible,some special considerations are required when solder-ing and unsoldering components. The printed-throughholes may interconnect multiple layers of the printedcircuit.
CAUTIONTherefore, care should be exercised to
avoid pulling the plated circuit out ofthe hole.
When soldering near the 16 or 18-pin connector, usecare to avoid accidentally getting solder in the connec-tor.
CAUTIONBe careful not to form solder bridgesbetween the connector pins. Closelyexamine your work for shorts due tosolder bridges.
Chip Components
Use either the RLN4062 Hot-Air Repair Station or theMotorola 0180381B45 Repair Station for chip compo-nent replacement. When using the 0180381B45 RepairStation, select the TJ-65 mini-thermojet hand piece. Oneither unit, adjust the temperature control to 700˚ F
September, 2000 6880906Z19-O 2-3
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Basic Maintenance
Repair Procedures and Techniques
(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 handpiece and position the nozzle of the hand piece approx-imately 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. Usingsolder wick and a soldering iron or a power desolder-ing 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 andapply fresh solder to one of the solder pads. Using apair of tweezers, position the new chip component inplace while heating the fresh solder. Once solder wicksonto the new component, remove the heat from the sol-der. Heat the remaining pad with the soldering ironand apply solder until it wicks to the component. Ifnecessary, touch up the first side. All solder jointsshould be smooth and shiny.
To replace a chip component using hot air, select thehot-air hand piece and reflow the solder on the solderpads to smooth it. Apply a drop of solder paste flux toeach pad. Using a pair of tweezers, position the newcomponent in place. Position the hot- air hand pieceapproximately 1/8” above the component and beginapplying heat. Once the solder wicks to the compo-nent, remove the heat and inspect the repair. All jointsshould be smooth and shiny.
Over-Molded Pad-Array Carrier (OMPAC)
ASFIC U0201 is an OMPAC. It must be kept in a sealedbag with dessicant in the bag (in a “dry box” as sup-plied by the Motorola Parts Department prior to use. Ifthe OMPAC is ambient for an unknown amount oftime or for more than 96 hours, then it must be bakedfor at least eight hours at 260˚ F (185˚ C).
If neighboring OMPAC components are heated above365˚ F (185˚ C), they will suffer die-bond delaminationand possible “popcorn” failure.
During all repair procedures, heating neighboringcomponents can be minimized by:
• Using upper heat only. using the correct sizeheat-focus head, approximately the same size asthe carrier being replaced.
• Keeping the heat-focus head approximately 1/8” (0.3cm) above the printed circuit board whenremoving or replacing the device.
OMPAC Removal
To remove the OMPAC, select the R-1319A Air-FlowStation and the appropriate heat- focus head (approxi-mately the same size as the OMPAC. Attach the heat-focus head to the chimney heater. Adjust the tempera-ture control to approximately 415˚ F (215˚ C) 445˚ F(230˚ C) maximum. Adjust the airflow slightly abovethe minimum setting. Apply the solder paste fluxaround the edge of the OMPAC. Place the circuit boardin the R-1070A's circuit board holder, and position theOMPAC under the heat-focus head. Lower the vacuumtip and attach it to the OMPAC by turning on the vac-uum pump. Lower the heat-focus head until it isapproximately 1/8” (0.3cm) above the carrier. Turn onthe heater and wait until the OMPAC lifts off the circuitboard. Once the part is off, grab it with a pair of twee-zers and turn off the vacuum pump. Remove the circuitboard from the R-1070A's circuit board holder.
OMPAC Replacement
To replace the OMPAC, the solder pads on the boardmust first be cleaned of all solder to ensure alignmentof the new chip carrier. Prepare the sight by using sol-der wick and a soldering iron to remove all solder fromthe solder pads on the circuit board. If a power desol-dering tool is available, it can be used instead of the sol-der wick. Clean the solder pads with alcohol and asmall brush. Dry and inspect. Ensure that all solder isremoved.
Once the preparation is complete, place the circuitboard back in the R-1070A's circuit board holder. Addsolder paste flux in the trench of the flux block andspread it using a one-inch putty knife. Flux theOMPAC by placing it in the trench of the flux block.Once the flux is applied, place the OMPAC on the cir-cuit board, making certain that it is oriented correctlyon the board. Position the heat-focus head over theOMPAC and lower it to approximately 1/8” (0.3cm)over the carrier. Using the same heat and airflow set-ting used to remove the OMPAC, turn on the heaterand wait for the carrier to reflow (heating and reflowshould take longer than 60 seconds).
Once the carrier reflows, raise the heat-focus head andwait approximately one minute for the part to cool.Remove the circuit board and inspect the repair. Nocleaning should be necessary.
Shields
Removing and replacing the shields will be done withthe R-1070A, using the same heat and airflow profileused to remove and replace OMPAC components.
Shield Removal
Place the circuit board in the R-1070A's holder. Selectthe proper heat focus head and attach it to the heater
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Basic Maintenance GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Repair Procedures and Techniques
chimney. Add solder paste flux around the base of theshield. Position the shield under the heat-focus head.Lower the vacuum tip and attach it to the shield byturning on the vacuum pump. Lower the focus headuntil it is approximately 1/8”(0.3cm) above the shield.Turn on the heater and wait until the shield lifts off thecircuit board. Once the shield is off, turn off the heat,grab the part with a pair of tweezers, and turn off thevacuum pump. Remove the circuit board from the R-1070A's circuit board holder.
Shield Replacement
To replace the shield, add solder to the shield if neces-sary, using a micro-tipped soldering iron. Next, rub thesoldering iron tip along the edge of the shield tosmooth out any excess solder. Use solder wick and asoldering iron to remove excess solder from the solderpads on the circuit board. Place the circuit board backin the R-1070A's circuit board holder. Place the shieldon the circuit board using a pair of tweezers. Positionthe heat-focus head over the shield and lower it toapproximately 1/8” above the shield. Turn on theheater and wait for the solder to reflow.
Once complete, turn off the heat, raise the heatfocushead, and wait approximately one minute for the partto cool. Remove the circuit board and inspect therepair. No cleaning should be necessary.
Replacement of Transistor Q6505
This section provides a replacement procedure forQ6505, the RF power output transistor in the 30-Wattpower amplifier.
To replace Q6505, proceed as follows:
Before proceeding, ensure that the following tools andmaterials are on hand:
• Alcohol (isopropyl).
• High temperature solder, SN96AG04 composi-tion. Motorola Part No. 1180433L04.
• Hot air gun (600 degrees maximum tempera-ture).
• Low lint wipers.
• Soldering station including a soldering ironwith chisel-style tip which is approximately 1/8-inch in size.
• Solder flux.
• Solder wick.
• Stiff brush, natural bristles approximately 1-cmhigh and 1-cm wide.
• 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 thisservice manual, Motorola Publication6880906Z19.
2. After main board is removed from radio chas-sis, clean off thermal paste from all surfacesthat have thermal paste on them using lowlint wipers.
Removing Faulty Transistor
1. Before removing faulty transistor, observecarefully how flange capacitors C6567 andC6568 are mounted. This will help you later inmounting new capacitors.
2. Set hot air gun for medium temperature andlow air speed. This will ensure that other com-ponents in vicinity of Q6505 will not get dis-lodged and moved accidently.
3. Train hot air gun on flanges of transistor. Aftera few moments, the solder holding flangeswill reflow enabling transistor and flangecapacitors C6567 and C6568 to be lifted offmain board together.
Preparing Main Board for New Transistor
1. Using solder wick, isopropyl alcohol, and stiffbristle brush, remove excess solder and cleanpads on main board where transistor was sol-dered.
2. Place main board, with its heavy side up, ontransistor assembly tool. Heavy side is sidewith PA module and antenna connector. Makecertain that all guide pins on transistor assem-bly tool are engaged into their correspondingholes in main board.
3. Identify the six pads on main board corre-sponding to the six flanges on transistor. Thefour corner pads are ground; the middle padtowards antenna connector is the transistorcollector; and the opposite middle pad is thetransistor emitter.
NOTEIn next step, be certain to tin transistorpads and fill via holes with high temper-ature solder, composition SN96PB04.
4. Using solder iron, carefully tin each of the sixpads so that they are covered with a thin coatof solder and all via holes are filled.
September, 2000 6880906Z19-O 2-5
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Basic Maintenance
Repair Procedures and Techniques
Positioning New Transistor
1. Place a small spot of flux on each of the sixmain-board pads to which the flanges of tran-sistor are to be soldered.
2. Insert the narrow-diameter side of a spacer,Motorola Part Number 4380545K01, into eachof the two transistor mounting holes in mainboard.
3. Ensure that new transistor is correct replace-ment type by verifying that M25C20 is printedon transistor face.
NOTECollector flange of transistor is the onewith its corner cut off.
4. Position new transistor onto transceiver boardwith collector flange oriented towardsantenna connector. Ensure that transistor issitting snug on main board with all six flangesflat on their corresponding main-board pads.
5. Lower arm of Distaco clamp on transistorassembly tool. Then lock clamp with its leverto clamp transistor in place on main board.
Soldering Transistor
1. Place a small spot of flux on each of the sixtransistor flanges.
2. 2. Solder each transistor flange to transceiverboard as follows:
2A. Set soldering iron temperature to approxi-mately 400 degrees Centigrade.
2B. Melt a small mound of solder onto flat faceof soldering iron.
CAUTIONIn next step, to avoid damage to transis-tor and capacitors, ensure that each sol-dering operation takes no more thanthree to four seconds to accomplish.
3. Press face of soldering iron firmly to flange forno more than three to four seconds.
4. Inspect transistor flange carefully to ensure itis soldered securely, and that it is not shortedto any of the other flanges or to the transistorheat sink.
Installing Flange Capacitors C6567 and C6568.
NOTECapac i tors C6567 and C6568 getmounted flat on transistor collector andground flanges with non-solderable edgeflush against transistor body. Each capac-itor is attached by soldering its outsidesolderable edge to one of the transistorground flanges and its inside solderableedge to transistor collector flange. Theremust be a gap of approximately 2 milli-meters between the two capacitors (i.e.,room to insert a chisel style solder irontip) to ensure that good solder joints canbe made between capacitor leads andcollector flange of transistor.
1. Ensure that both capacitors C6567 and C6568are correct replacement type by verifying thatMotorola Part Number is 2113742B23, value is12pF, and marking is Cl.
CAUTIONIn next two steps, to avoid damage totransistor and capacitors, ensure thatsoldering operations take no more thanthree to four seconds to accomplish.
2. Solder outside solderable edge of each capaci-tor to one transistor ground flange, being cer-tain that each capacitor is flat on transistorflange with non-solderable edge flush againsttransistor body.
3. Place a small drop of flux on transistor collec-tor flange between capacitors. Place chiselstyle solder iron tip between capacitors andonto collector flange of transistor. Feed insome high temperature solder (SN96PB04) sothat inside solderable edges of both capacitorsare soldered securely to collector flange oftransistor.
4. Examine soldered capacitors. Ensure that theyare reasonably flush against transistor bodyand are not shorting transistor collector flangeto transistor heat sink.
5. Examine surrounding components to ensurethat none of them have been damaged or dis-placed.
Reassembly of Radio
1. Examine face of transistor heat sink. Ensurethat it is free from burrs and flux, which couldprevent a good thermal contact to radio chas-sis.
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Basic Maintenance GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Repair Procedures and Techniques
2. Spread thermal compound on heat sink of thefollowing components:
• Transistor Q6505
• PAmoduleU6501
• Audio PA module U401
• +9.3V voltage regulator U601
3. Install transceiver board into radio chassis fol-lowing procedure provided in Section 6 ofthis service manual, Motorola Publication6880906Z19.
September, 2000 6880906Z19-O 3-1
Section 3Test Equipment,
Service Aids, and Tools
Test EquipmentThe list in Table 3-1 includes all standard test equipment required for servicing two-way mobile radios. Battery-operated test equipment is recommended when available. The “Characteristics” column is included so that equiv-alent equipment may be substituted; however, when no information is provided in this column, the specific Motor-ola model listed is either a unique item or no substitution is recommended.
Table 3-1. Recommended Test Equipment
Model No. Description Characteristics Application
R2000 Serieswith trunking op-tion
CommunicationsSystem Analyzer
Frequency/deviation meter and sig-nal generator for wide-range trouble-shooting and alignment
R1053 Dual TraceOscilloscope
200 MHz bandwidth, For waveform measurements
FLUKE 8012 Digital Multimeter AC/DC voltage and current meter
T1013A Load resistor 0-1000MHz, 300 W For use with wattmeter
S1339A RF Millivolt Meter10 kHz to 1.2 GHz
100 V to 3V rf RF level measurements
R1011B DC Power Supply 0-40Vdc, 30 Amps Bench supply for 13.8Vdc currentlimited
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Test Equipment, Service Aids, and Tools GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Field Programming
Field ProgrammingThe 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 thecomputer’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 DC Power Cable for radio Interconnects radio to power supply.
HKN4191B 35 W Power Cable forradio
Interconnects radio to power supply.
3080369B72 Computer Interface Cable Connects the computer’s serial communicationsadapter (9 pin) to the RIB.
3080369B71 Computer Interface Cable Connects the computer’s serial communicationsadapter (25 pin) to the RIB.
RLN4438A Adapter 25 pin (F) to 9 pin (M) adapter, for use with 3080369B72for AT applications.
RVN4150B Radio Service Software(RSS)
For GTX radio programming.
68P02948C70 GTX (RSS) Radio ServiceSoftware Manual
Provides detailed instruction on RSS used in GTX radi-os.
RLN4460A Test Fixture For radio testing
3008566C12 Test Cable For connecting between the radio and RLN4460A.
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Test Equipment, Service Aids, and Tools
Service Tools
Service ToolsThe 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 onwhich 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 or0180300E06 220 VAC
MBT250 Surface-mount/through-hole repair sta-tion
Temperature-controlled, self-contained solder-ing/desoldering repair station for installationand removal of surface-mounted devices.
8180369E97 Flux holder/applicator Allows for the proper amount of flux to be ap-plied to pad grid arrays for repair.
1105139W02 30cc plastic syringe andflux paste
For use with flux holder/applicator 8180369E97.
0180386A81 Miniature digital read-out soldering station (in-cludes 1/64” micropointtip)
0180386A78 Illuminated magnifyingglass with lens attach-ment
0180386A82 Anti-static grounding kit Used during all radio assembly and disassemblyprocedures
6684253C72 Straight prober
6680384A98 Brush
1010041A86 Solder (RMA type),63/37, 0.020” diameter, 1lb. spool
R-1070A(superseded by R1319A)
Shields and surface-mounted component - ICremoval/rework station
Removal of surface-mounted integrated circuits
R1319A
6680332E826680332E836680332E846680333E28
Surface-Mounted DeviceRework StationR1319A Reflow NozzleR1319A Reflow NozzleR1319A Reflow NozzleR1319A Reflow Nozzle
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
0293 Transmitter AssemblyTool
Replacement for transisator Q6505
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Service Tools
September, 2000 6880906Z19-O 4-1
Section 4Test Mode, Error Codesand Performance Tests
Front Panel Test ModeThe functions of the radio controls for the Front PanelTest Mode are as follows:
Test Mode/Entry
Test Mode allows radio checks to be performed in thefield. To provide a level of protection to the Test Modeentry, proceed according to the following sequence:
1. Place radio in TRUNKING operation modeand wait for 6 seconds. (See Quick Start cardfor 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 .
5. Turn radio on.
The radio enters Test Mode operation:
• Speaker unmutes.
• One beep is heard to indicate operation on thefirst test frequency (default).
• Display shows "4 1" .
Test Mode/Channel Selection
Use the PTT switch for channel selection. A short pressand de-press on the PTT switch (button-like push) willadvance the radio to the next channel (cyclical) . Sevenchannels are available during test mode, as shown inTable 4-1.
Test Mode/Tx Modulation
Use PTT switch for modulation type selection. A con-tinuous press will advance the radio to the next modu-lation test (cyclic scroll ) and perform Tx test until PTTis released. The modulation selection is described inTable 4-2.
MODE (4 IS INITIAL MODE)
CHANNEL
Table 4-1. Test Mode/Channel SelectionChannel Number Rx Frequency Tx Frequency Display
1 935.0125 MHz 896.0125 MHz “M 1” (2)
2 941.9875 MHz 901.9875 MHz “M 2” (2)
3 938.5125 MHz 899.5125 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.
Table 4-2. Test Mode/Tx ModulationModulation 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.
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Front Panel Test Mode
Fail Mode
The radio will enter Fail Mode upon detecting one ofthe following errors:
• Application startup self check error
• Codeplug information check error
There are two categories of errors: critical and non-crit-ical. Critical errors will stop radio normal operation.Refer to Table 4-3.
Exiting Test Mode
To exit Test Mode, proceed as follows:
• Turn radio off.
• Turn RIB on.
Table 4-3. Fail ModeError 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 E 06 No Illegal Tone (when selectedpersonality has checksum er-ror)
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. 8the temporary illegal tone is heard. (See the Quick Start card for instructions on how to change personality.)To exit fail mode, power radio off.
Non-critical errors will be temporarily indicated as described in Table 4-2.
Table 4-4. Transmitter Performance ChecksTest
NameCommunication
Analyzer Radio Test Set Comments
Reference Fre-quency
Mode: PWR MON2nd channel test frequencyMonitor. Frequency error in-put at RF In/Out
TEST MODE, Dis-play: 2 0
PTT to continuous(during the perfor-mance check)
Frequency error to be< 700 Hz
Power RF Same as Above TEST MODE,Display: 2 0
Same as Above Refer to MaintenanceSpecification page x
Voice Modula-tion
Mode: PWR MON4th channel test frequencyatten to -70, input to rf In/Out Monitor: DVM, AC VoltsSet 1kHz mod Out level for0.025Vrms at test set,80mVrms at AC/DC test setjack.
TEST MODE,Display: 2 0
Same as Above,meter selector tomic
Deviation:800 MHz:3.6 kHz but 5.0 kHz900 MHz: 2.5 kH
Low-SpeedDataModulation800/900
Same as Above TEST MODE,Display: 2 1
PTT to continuous(during the perfor-mance check)
Deviation:800 MHz:800 Hz but 1200 Hz900 MHz: 350 Hz 650 Hz
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Test Mode, Error Codes and Performance Tests
Front Panel Test Mode
Voice Modula-tion (Internal)
Mode: PWR MON2nd channel test frequencyatten to -70, input to RF In/Out
TEST MODE,Display: 2 0
Remove modula-tion input
Press PTT switch on ra-dio. Say “four” loudlyinto the radio mic. Mea-sure deviation:800 MHz:3.8 kHz but 5.0 kHz900 MHz: 2.5 kHz
High-SpeedData Modula-tion
Same as Above TEST MODE,Display: 2 2
PTT to continuous(during the perfor-mance check)
Deviation:800 MHz:2.3 kHz but 3.8 kHz900 MHz :1.2 kHz but 2 kHz
DTMF Modula-tion(# SIGN)
Same as Above2nd channel test frequency
TEST MODE, Dis-play: 2 3output at antenna
Same as Above Deviation:800 MHz:2.8 kHz but 3.8 kHz900 MHz :1.4 kHz but 1.9 kHz
PL/DPL Modu-lation (radioswith conven-tional codedsquelch opera-tion only)
Change frequency to aconventional transmitfrequency, BW to narrow
Conventionalcoded squelchpersonality
Same as Above Deviation:800 MHz:500 Hz but 1000 Hz900 MHz:250 Hz but 500 Hz
Talk-aroundModulation (ra-dios with con-ventional talk-around opera-tion only)
Change frequency to conven-tional talk-around frequency.Mode:PWR MONdeviation, attenuation to -70,input to RF In/OutMonitor: DVM, AC voltsSet 1kHz Mod Out level for25mVrms at test set.
Conventionaltalk-around per-sonality
Same as Above Deviation:800 MHz:3.8 kHz but 5.0 kHz900 MHz :1.9 kHz but 2.45 kHz
Table 4-5. Receiver Performance ChecksTest
NameCommunication
Analyzer Radio Test Set Comments
Rated Audio Mode: GENOutput level: 1.0mV RF1st Channel test frequencyMod: 1 kHz tone at3 kHz deviationMonitor: DVM: AC Volts
TEST MODE,Channel 0Modulation Type1
PTT to OFF (center),meter to Audio PA
Set volume con-trol to 3.74 Vrms
Distortion Same as above, except for dis-tortion
Same as Above Same as Above Distortion <5.0%
Sensitivity(SINAD)
Same as above, except SINAD,lower the rf level for 12 dB SI-NAD
Same as Above PTT to OFF (center) RF input to be<0.35 V
Table 4-4. Transmitter Performance Checks (Cont'd.)Test
NameCommunication
Analyzer Radio Test Set Comments
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Test Mode, Error Codes and Performance Tests GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Front Panel Test Mode
Noise SquelchThreshold(only radios withconventional sys-tem need to betested
RF level set to 1mV RF Same as Above PTT to OFF (center),meter selection to Au-dio PA, spkr/load tospeaker
Set volume con-trol to 3.74 Vrms
As above, except change fre-quency to a conventional sys-tem. Raise RF level from Zerountil radio unsquelches.
out of TESTMODE, select aconventional sys-tem
Same as Above Unsquelch to oc-cur at <0.3 VPreferred SI-NAD=<12 dB
Table 4-5. Receiver Performance Checks (Cont'd.)Test
NameCommunication
Analyzer Radio Test Set Comments
September, 2000 6880906Z19-O 5-1
Section 5Disassembly & Reassembly
For 12 W Models
IntroductionThis chapter explains, step by step, how to disassembleand 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 simi-lar, in the recess between the control head andthe chassis. Refer to Figure 5-1.
3. Press until the side of the control headreleases.
4. Pull the control head away from the radio.
5. Remove the speaker pad and flat cable fromthe connector on the radio side. Refer toFigure 5-2 and Figure 5-6.
Remove the Top Cover
1. Turn the radio upside down.
2. Insert a small flat bladed screw driver in the siderecesses 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 ofthe radio.
5. Turn the radio right side up.
6. Lift the top cover over the chassis.
CONTROL HEAD
RECESS
Figure 5-1. Control Head Removal
Figure 5-2. Flat Cable Removal
Figure 5-3. Top Cover Removal
SIDE RECESS
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Disassembly & Reassembly For 12 W Models GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Disassemble the Radio
Remove the Main Board
1. Remove the 3 screws of the PA shield using aT8 TORX driver. Remove the PA shield bygently prying up each corner of the shield.
2. Remove the power and antenna connectorretaining clips by inserting a small flat bladescrew driver between the clip and the top ofthe chassis wall and gently prying the clipupwards.
3. Pull out the accessory clamp and connectorgasket.
4. Pull out the accessory kit.
5. Remove the 8 screws securing the main boardto the chassis.
6. Carefully remove the main board by rotatingit out of the chassis.
7. Slowly lift the board on the front edge, theside with the connector that mates with thecontrol head, and pull gently toward the frontof the radio.
CAUTIONThe thermal grease can act as an adhe-sive and cause the leads of the heat dis-sipating devices to be over stressed ifthe board is lifted too quickly.
Disassemble the Control Head
1. To pull out the circuit board from the controlhead housing, insert a small bladed screwdriver in the side groove near the four pro-
truding tabs. Remove the board from the con-trol head housing.
2. Disconnect the speaker from the board byremoving it from the socket.
3. Remove the keypad from the control headhousing by lifting it up from the board. Careshould be taken not to touch or get other con-taminates on the conductive pads on theunder side of the keypad or conductive con-tacts on the printed circuit board.
4. Take the LCD frame out of the control head.
TAB
KEYPAD
LCD FRAME
VOLUME KNOB
ZEBRA CONNECTOR
POTENTIOMETER
SPEAKER
FLAT CABLE
PART OF LCD FRAME
HOUSING
Figure 5-5. Control Head Removal
CLIPS
SHIELD
Figure 5-4. Main Board Removal
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Disassembly & Reassembly For 12 W Models
Assemble the Radio
Assemble the Radio
Assemble the Control Head
1. Insert the LCD frame with LCD and Zebraconnectors into its place.
2. Place the keypad onto the board assembly,making sure the keypad is flush with theboard.
3. Rotate the potentiometer counterclockwise.Rotate the volume knob counterclockwise.This will allow you to insert the potentiometersmoothly into its place in the volume knob.
4. Make sure the speaker including the gasket iswell positioned into the pocket of the hous-ing..
5. Connect the speaker to the circuit board.
6. During the installation of the circuit board,ensure the four protruding tabs snap into therecesses.
Replace the Main Board
1. Inspect and if necessary, reapply thermalgrease to the heatsinking pads in the chassis.
2. Rotate the main board into the chassis andensure that the board is flush to the chassis.
3. Install the 8 screws with 0.4 -07 NM (4-6 inlbs) of torque using a T8 TORX driver.
4. Before installing the connector retaining clips,ensure that the board is sitting flush on thechassis mounting surface.
5. Install the PA shield and secure it with 3screws.
Replace the Top Cover and Control Head
1. Position the top cover over the chassis andreplace. Ensure that the chassis crosses snapinto the cover’s openings.
2. Connect the flat cable to the connector on theradio.
3. Assemble the speaker pad by sliding the slit ofthe 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 untilthe protruding taps on the chassis snap intothe recesses inside the housing.
Figure 5-6.
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Disassembly & Reassembly For 12 W Models GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Assemble the Radio
September, 2000 6880906Z19-O 6-1
Section 6Disassembly & Reassembly
For 30 W Models
Introduction
This chapter explains, step by step, how to disassembleand 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 simi-lar, in the recess between the control head andthe chassis. Refer to Figure 6-1.
3. Press until the side of the control headreleases.
4. Pull the control head away from the radio.
5. Remove the speaker pad and flat cable fromthe connector on the radio side. Refer toFigure 6-2 and Figure 6-7.
Remove the Top Cover
1. Turn the radio upside down.
2. Insert a small flat bladed screw driver in the siderecesses 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 ofthe radio.
5. Turn the radio right side up.
6. Lift the top cover over the chassis.
CONTROL HEAD
RECESS
Figure 6-1. Control Head Removal
Figure 6-2. Flat Cable Removal
Figure 6-3. Top Cover Removal
SIDE RECESS
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Disassembly & Reassembly For 30 W Models GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Disassemble the Radio
Remove the Main Board
1. Remove the 4 screws of the PA shield using aT8 TORX driver.
CAUTIONThe PA shield has sharp edges. Handlewith care when removing and replacing.
2. Remove the PA shield as follows:
2A. Hold the shield handle with your index andmiddle fingers while pressing your thumbdownward on the shield. Keep all fingerscurled upward as shown in Figure 6-4.
2B. Keeping the other hand away from the PAshield, place your thumb on top of the frontof the radio while placing your fingersunderneath the chassis. Refer to Figure 6-4.Make sure this hand is away from the PAshield.
2C. Holding the chassis firmly, remove the PAshield by pulling upward on the handle.
3. Remove the antenna connector retaining clipby inserting a small flat bladed screw driverbetween the clip and the top of the chassiswall and gently prying the clip upwards.
4. Pull out the accessory clamp and connectorgasket.
5. Pull out the accessory kit.
6. Twist the sleeve of the power cable 90 degreesand lift up and out from the chassis.
7. Remove the 14 screws securing the mainboard to the chassis.
8. Carefully remove the main board by rotatingit out of the chassis.
9. Slowly lift the board on the front edge, theside with the connector that mates with thecontrol head, and pull gently toward the frontof the radio.
CAUTIONThe thermal grease can act as an adhe-sive and cause the leads of the heat dis-sipating devices to be over stressed ifthe board is lifted too quickly.
Disassemble the Control Head
1. To pull out the circuit board from the controlhead housing, by inserting a small bladedscrew driver in the side groove near the fourprotruding tabs. Remove the board from thecontrol head housing.
2. Disconnect the speaker from the board byremoving it from the socket.
3. Remove the keypad from the control headhousing by lifting it up from the board. Careshould be taken not to touch or get other con-taminates on the conductive pads on theunder side of the keypad or conductive con-tacts on the printed circuit board.
4. Take the LCD frame out of the control head.
Figure 6-4. Shield Removal
CLIP
SHIELD
Figure 6-5. Main Board Removal
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Disassembly & Reassembly For 30 W Models
Assemble the Radio
Assemble the Radio
Assemble the Control Head
1. Insert the LCD frame with LCD and Zebraconnectors into its place.
2. Place the keypad onto the board assembly,making sure the keypad is flush with theboard.
3. Rotate the potentiometer counterclockwise.Rotate the volume knob counterclockwise.This will allow you to insert the potentiometersmoothly into its place in the volume knob.
4. Make sure the speaker is well positioned intothe 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 therecesses.
Replace the Main Board
1. Inspect and if necessary, reapply thermalgrease to the heatsinking pads in the chassis.
2. Rotate the main board into the chassis andensure that the board is flush to the chassis.
3. Install the 14 screws with 0.4 -07 NM (4-6 inlbs) of torque using a T8 TORX driver.
4. Before installing the connector retaining clipand power cable, ensure that the board is sit-ting flush on the chassis mounting surface.
5. Install the PA shield and secure it with the 4screws.
Replace the Top Cover and Control Head
1. Position the top cover over the chassis andreplace. Ensure that the chassis crosses snapinto the cover’s openings.
2. Connect the flat cable to the connector on theradio.
3. Assemble the speaker pad by sliding the slit ofthe pad over the flat cable. Refer to Figure 6-7.
4. Push the speaker pad onto the chassis.
5. Press the control head onto the chassis untilthe protruding taps on the chassis snap intothe recesses inside the housing.
TAB
KEYPAD
LCD FRAME
VOLUME KNOB
ZEBRA CONNECTOR
POTENTIOMETER
SPEAKER
FLAT CABLE
PART OF LCD FRAME
HOUSING
Figure 6-6. Control Head Removal
Figure 6-7.
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Disassembly & Reassembly For 30 W Models GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Assemble the Radio
September, 2000 6880906Z19-O 7-1
Section 7Radio Tuning Procedure
Radio Tuning Procedure
General
An IBM PC (personal computer) and RSS (Radio Ser-vice Software) are required to align the radio. Refer tothe applicable RSS Manual for installation and setupprocedures for the software.
To perform the alignment procedures, the radio mustbe connected to the PC, RIB (Radio Interface Box), andTest Set as shown in Figure 7-1.
Service Menu
Figure 7-2 illustrates the Main Service Menu structure.All SERVICE screens read and program the radio code-plug directly; you do NOT have to use the RSS GET/SAVE functions to program new tuning values.
CAUTIONDo NOT switch radios in the middle ofany SERVICE procedure. Always use theEXIT key to return to the MAIN menuscreen before disconnecting the radio.Improper exits from the SERVICEscreens may leave the radio in animproperly configured state and result inseriously degraded radio or system per-formance.
The SERVICE screens use the concept of the “Softpot”,an analog SOFTware controlled POTentiometer usedfor adjusting all transceiver alignment controls.
Each SERVICE screen provides the capability toincrease or decrease the ‘softpot’ value with the key-board UP/DOWN arrow keys respectively. A graphi-cal scale is displayed indicating the minimum,maximum, and proposed value of the softpot, asshown in Figure 7-3.
BNC
RIB
RIB POWER SUPPLY
COMPUTER INTERFACE CABLE
DATA
GND
COMPUTER
AUDIO GENERATOR
SINAD METER
AC VOLTMETER
TX
RX
30 dB PAD
30 dB PAD
RF GENERATOR
SERVICE MONITOR
WATTMETER
TRANSMIT
RECEIVE
TEST SETRADIO
PROGRAM or
AUDIO IN
Mini-U BNC
TEST CABLE
15-PIN25-PIN
Note: Battery can be used in RIB
MIC IN
or COUNTER
0180357A57, 110 V, USA
RLN4008B
30-80369B72 (IBM AT, 9-PIN ONLY)30-80369B71 (IBM XT, 25-PIN ONLY)
making power supply optional.
58-80348B33
TEST CABLE3080070N01
RLN4460A
3008566C12
0180358A56, 110 V, USA
Figure 7-1. Radio Alignment Test Setup
7-2 6880906Z19-O September, 2000
Radio Tuning Procedure GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Tuning Procedure
Tuning Procedure
Starting the Tuning Procedure
1. From the SERVICE menu, press F6 to selectBOARD REPLACEMENT.
2. Press F2 for LOGIC OR RF BOARD replace-ment.
NOTEPerform the following procedures in thesequence indicated.
Alignment Default Data
1. Press F2 to select ALIGNMENT DEFAULTDATA.
2. Press F8 for PROGRAM VALUE.
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 thenpress F8 to program the softpot value.
Reference Oscillator Alignment
NOTEThe frequency of the transmitter must bechecked on installation and at least annu-ally.
Adjustment of the reference oscillator is critical forproper radio operation. Improper adjustment will notonly result in poor operation, but also a misalignedradio that will interfere with other users operating onadjacent channels. For this reason, the reference oscilla-tor should be checked every time the radio is serviced.The frequency counter used for this procedure musthave a stability of 0.1 ppm (or better).
1. Press F4 to select the REFERENCE OSCILLA-TOR softpot.
2. Press F6 to key the radio. The screen will indi-cate that the radio is transmitting.
3. Measure the transmit frequency that appearson the screen of your frequency counter.
4. Use the UP/DOWN arrow keys to adjust thereference oscillator.
5. Press F6 again to dekey the radio and thenpress F8 to program the softpot value.
Transmitter Power
NOTEDuring Tx POWER tuning, measure andnote the DC transmit current (ITx) foreach channel in the high power band.
F6F2
AlignmentMenu
BoardReplacement
Menu
ServiceMenu
F2 Logic or RF Board ReplacementF3 Tx PowerF4 Warp Reference FrequencyF5 Tx Power CalibrationF6 Tx Deviation Calibration
F3 Deviation AdjustmentF5 Reference Oscillator WarpF7 Transmitter PowerF8 Squelch Adjustment F9 Squelch Adjustment
Figure 7-2. Service Menu Structure
MAEPF-22858-O
Min.Value
Max.Value
0 15
Figure 7-3. Softpot Concept
September, 2000 6880906Z19-O 7-3
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Radio Tuning Procedure
Tuning Procedure
1. Press F5 to select the Tx POWER calibrationsoftpot. The screen will indicate the transmittest frequencies to be used.
2. Press F6 to key the radio.
3. Use the UP/DOWN arrow keys to adjust thetransmit power value.
4. Press Enter to select next softpot frequency.
5. Repeat steps 3 and 4 for the remaining test fre-quencies.
6. Press F6 to dekey the radio.
7. Press F8 to program the value.
Transmit Current Limit
NOTELarger Softpot values yields increasedCUTBACK resu l t ing in LOWERPOWER.
1. After Tx POWER tuning the TRANSMIT CUR-RENT LIMIT screen will appear. Select the fre-quency with the highest DC transmit current(ITx) measured during the Tx POWER tuningprocuedure.
2. Press F6 to key the radio.
3. Use the UP/DOWN arrow keys to adjust theDC transmit current value per Table 7-1.
4. Press F6 to dekey the radio.
5. Press F8 to program the value.
Transmit Deviation Balance(Compensation) & Deviation Limit
Compensation alignment balances the modulationsensitivity of the VCO and reference modulation (syn-thesizer low frequency port) lines. Compensation algo-rithm is critical to the operation of signaling schemesthat have very low frequency components (e.g. DPL)and could result in distorted waveforms if improperlyadjusted.
1. Press F6 to select TX DEVIATION CALIBRA-TION. The screen will indicate the transmittest frequencies to be used.
2. Begin with the lowest test frequency shown onthe screen.
3. Press F6 to key the radio. Record this measure-ment.
4. Press F4 to select 2.5 kHz.
5. Use the UP/DOWN arrow keys to adjust thedeviation to within 0.5 dB of the valuerecorded in step 3.
6. Press Enter to move to next softpot value.
7. Repeat steps 5 and 6 for the remaining fre-quencies.
8. Press F8 to program the softpot value.
Transmit Deviation Limit
The transmit deviation limit softpot sets the maximumdeviation of the carrier. Tuning is performed for 12.5kHz channel spacing.
1. Begin with the lowest test frequency shown onthe screen.
2. Press F6 to key the radio.
3. With Test Box 4460A: inject a 1 kHz tone, 2000mVrms.
4. Use the UP/DOWN arrow keys to adjust thedeviation to between 2.2 kHz and 2.4kHz.
5. Press Enter to move to the next softpot value.
6. Repeat steps 4 and 5 for the remaining fre-quencies shown on the screen.
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 atwhich the squelch opens.
1. Press F9 to select SQUELCH Adjustment.
2. Adjust the UP/DOWN arrow key to the mini-mum squelch value.
3. Apply a standard RF input level of -47 dBm tothe radio on the test frequency.
Table 7-1. Transmit Current Limit Tune Windows
Model Min Max
900_12W 4.60 A 5.10 A
900_30W ITx + 0.4 A ITx + 1.0 A
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Radio Tuning Procedure GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Tuning Procedure
4. Adjust the radio’s volume control to obtainrated audio power at the external speaker ofthe accessory connector.
5. Reduce the RF input level until 10 dB SINADis measured.
6. Adjust the UP/DOWN arrow key until thesquelch just closes. Monitor for squelch chat-ter and adjust UP as required.
7. When no chatter is detected press F8 to pro-gram.
Ending the Tuning Procedure
1. Press F2 to continue.
2. Press F10, F10 to return to the Service menu
September, 2000 6880906Z19-O 8-1
Section 8Theory of Operation
IntroductionThis section provides theory of operation informationfor the radio. It starts with a block diagram level func-tional description of the entire radio. This is followedby a detailed functional description for each of the fourmajor functions that make up the radio.
Overview
The main radio is a single board design, consisting ofthe transmitter, receiver, and controller circuits.
The control head is mounted directly on the front of theradio. The control head contains a speaker, LED indica-tors, a microphone connector and buttons which pro-vide the user with interface control over the variousfeatures of the radio and a display.
In addition to the power cable and antenna cable, anaccessory cable can be attached to a connector on therear of the radio. The accessory cable provides the nec-essary connections for items such as external speaker,foot operated PTT, ignition sensing, public address,remote desk set and data modem.
Figure 8-1. 900-MHz Radio Functional Block Diagram
CPU CLOCK
MOD
SPI
MOD
2.1 MHZ
SYNTHESIZER
DIRECTIONALCOUPLER
PRE-SELECTOR3-POLE CERAMIC 2-POLE IF BACK-END ASFIC
CPU
KEYBOARDDISPLAY
MEMORY
POWER
CONTROL
HARMONICFILTER
AUDIOPA
RFAMP
PALINEUP
FRAC N
IC
LOOPFILTER
PENDULUM
16.8 MHZ
RX/TXVCO
TAVCO
PRE-SELECTOR3-POLE CERAMIC
SYNTHESIZERLINEUP
RF PA
RECEIVER
AUDIO & LOGIC
MIXER
LO SIGNAL
T/RSWITCH
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Theory of Operation GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Receiver Detailed Functional Description
Receiver Detailed FunctionalDescription
The receiver is composed of four sections: receiverfront end, receiver IF, receiver back end and the AudioSignal Filter IC (ASFIC) that is part of the controllersection.
The RF signal from the antenna switch in the PA sec-tion enters the first bandpass filter (FL5203). The firstbandpass filter has three poles, a 938-MHz center fre-quency, a 6-MHz wide passband and a 35-dB rejectionfor image frequencies (857 to 863MHz).
After the first bandpass filter, the signal passes to a pairof hot-carrier limiting diodes (D5303) placed in front ofRF preamplifier Q5301. The hot-carrier diodes limitstrong signals to prevent them from overdriving the RFpreamplifier and damaging it.
The RX front end is a Low Noise Amplifier (LNA) thatconsists of Q5301. Its main purpuse is to set the noisefigure of the receiver. The front end amplifier as well asthe IF amplifiers are shut off during transmit by K9.1line via switch Q5230, to provide isolation in talk-around mode.
After the LNA, the signal enters a second bandpass fil-ter (FL5204), which is identical to FL5203. The band-pass filters are fixed tuned from 935 to 941 MHz.
After the second bandpass filter, mixer U5211 down-converts the signal to the IF frequency.
The mixer is a passive double-balance mixer that gets alocal oscillator signal in the range of 895.9 to 901.9 MHzfrom the synthesizer and works on 4-dBm power. TheIF frequency is 45.1 MHz. A diplexer matches the
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 throughmatching network L5401, C5200.
Crystal filter Y5201 has two poles. The crystal filter isfollowed by matching elements, that match the filteroutput impedance to the input impedance of IF ampli-fier Q5201.
Following the IF amplifier is a matching network thatmatches the IF amplifier output impedance to the inputimpedance of a second 45.1-MHz crystal filter (Y5202).The second crystal filter is followed by matching ele-ments that match the output of the second crystal filterto the input of the receiver back end circuits. After thematching circuit, the signal passes a pair of hot-carrierlimiting diodes (D5201) placed in front of the back endcircuit.
The receiver back end consists of BBR IC (U5201) thatcontains the following functions:
• Preamplifier & mixer to convert the signal to asecond IF frequency of 455 kHz.
• Second LO circuit
• Second IF amplifiers
• FM Demodulator
• Audio amplifier
In addition to BBR IC, the back end contains the follow-ing components:
• Second LO resonator for 44.645 MHz (Y5211)
• Crystal filters for 455 kHz (FL5201, FL5202)
• Demodulator filter (C5224)
RFAMP
DET_AUDIO
IFAMP RSSI
BPF 455 kHzLOSS = 4 dBBW = 12 kHz
IF BPFCRYSTAL2-POLE
LOSS = 2.5 dBREJ = 10 dB @ 12.5KHz
2ND LO44.654 MHZ
GAIN = 21 dBNF = 3.3 dBIIP3 = 3 dBm
LO_INJ
C. LOSS = 7.5 dB
PRE-SELECTOR3 ELEMENTSCERAMIC FILTER
SW 5 VK9.1
5V_REG
9V3
ADAPT
PRE-SELECTOR3 ELEMENTSCERAMIC FILTER
IF BPFCRYSTAL2-POLE
NF = 7.5 dBLOSS = 2.0 dBREJ = -35 dB @ IMAGE
GAIN = 14 dBNF = 2 dB
BPF 455 kHzLOSS = 6 dBBW = 9 kHz
BBR
LOSS = 2.5 dBREJ = 10 dB @ 12.5KHzLOSS = 2.0 dB
REJ = -35 dB @ IMAGE
Figure 8-2. Receiver Functional Block Diagram
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Theory of Operation
Transmitter Detailed Functional Description
The IF signal routed to BBR IC is amplified, convertedto 455 kHz, filtered, limited and demodulated.
Demodulated audio comes out of BBR IC at U5201-28and is fed to the ASFIC, which is part of the radio con-troller section.
In addition to the audio output signal, the receiver sec-tion provides an RSSI (Receiver Signal Strength Indica-tor) at U5201-11. The RSSI signal is fed to the ASFICand accessory connector.
ADAPT signal into U5201-22 controls the BBR IC. Thenormally low (0 VDC) ADAPT signal is high (5 VDC)during change of radio channels, transition from trans-mit to receive or at turn-on. The ADAPT signal is usedto cont ro l precharge of capac i tor C5231 a tDEMOD_OUT. This is done in order to eliminate thetransient during frequency change or when the radiogoes from transmit to receive mode.
Transmitter Detailed FunctionalDescription
12 Watt PA
The 12-W PA is a three-stage radio frequency (RF)power amplifier used to amplify the output from theTX injection lineup to the radio transmit level. It con-sists of driver stage Q6501 followed by a two-stagepower module U6501.
The two stages of the power module operate from theA+ supply voltage. The module is switched on/off bythe K9.1 line through switch U6502 (which connectsthe A+ line to pin 2 of U6501 when transmit is enabled).The RF drive, which is routed into transistor Q6501, iscontrolled from Q6506 via the PA control line. The ris-ing control voltage on the PA control line causes a ris-ing collector voltage on Q6501. This causes morepower out of the stage. Conversely, a decreasing con-trol line voltage decreases the power delivered into thenext stage. By controlling the drive power to U6501and the following stages in the power amplifier lineup,ALC loop is able to regulate the output power of thetransmitter.
The antenna switch is switched synchronously withthe keyed 9.1 voltage. In the transmit mode, this 9.1voltage is high—turning on diodes CR6502, CR6503and CR6504. When CR6502 is turned on, it forms a lowimpedance to the RF transmit path and allows the sig-nal to pass through. Diodes CR6503 and CR6504 shortthe ends of quarter wavelength lines to ground, pre-senting a high impedance towards the receiver. In thisway no power is delivered into the receiver, the trans-mit path remains undisturbed, and the receiver is pro-tected during transmission.
In the receive mode, all these diodes are off. The offcapacitance of CR6502 is tuned by L6508 to form a high
impedance looking into the transmitter. Therefore,energy coming in the receive mode is channeled to theRX port.
Harmonics of the transmitter are attenuated by the har-monic filter. The harmonic filter is formed by inductorsL6513 and L6518 as well as capacitors C6540-C6542,C6551-C6553. This network forms a low-pass filter toattenuate harmonic energy of the transmitter to speci-fications level.
A forward-power detector follows the harmonic filter.This forward-power detector is a microstrip printedcircuit, which couples a small amount of the forwardenergy and to diode CR6506 where it is rectified. Thisrectified signal (VFORWARD) forms the forward volt-age which the power control circuit holds constant.Holding this voltage constant (which is proportional tothe RF rectified energy appearing across the diode)ensures the forward-power out of the radio is held to aconstant value.
Thermistor R6519 senses temperature in the area of thepower module. This signal is fed back into the powercontrol circuit to protect the power amplifier againstover-temperature conditions.
Resistor R6520, in series with the A+ line supply, feedsvoltage to the power module. The voltage across R6520is monitored and the difference voltage is channeled tothe power control circuit. The power control circuitmonitors the voltage drop across the resistor which isdetermined by the magnitude of the drain current inU6501. It uses this as a limiting mechanism wherebythe power control circuit limits the magnitude of cur-rent that can be drawn by U6501. This protects thedevice from over dissipation.
Bias voltage reverse polarity protection for the transmit-ter is provided by diode CR6508. Under reverse polarityconditions to the radio, this diode conducts and protectsthe radio from damage. This diode also provides tran-sient over-voltage protection by breaking down whenthe supply voltage to the radio exceeds 24 V.
30 Watt PA
The 30-Watt PA is a four stage radio frequency (RF)power amplifier used to amplify the output from the TXinjection lineup to the radio transmit level. It consists ofdriver stage Q6501, two-stage power module U6501 andRF final device transistor Q6505.
Q6505 and U6501 operate from the A+ supply voltage.U6501 is switched on/off by the K9.1 line throughswitch U6502 (which connects the A+ line to pin 2 ofU6501 when transmit is enabled). The RF drive, which isrouted into transistor Q6501, is controlled from Q6506via the PA control line. The rising control voltage on thePA control line causes a rising collector voltage onQ6501. This causes more power out of the stage. Con-versely, a decreasing control line voltage decreases the
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Theory of Operation GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Synthesizer Detailed Functional Description
power delivered into the next stage. By controlling thedrive power to U6501 and the following stages in thepower amplifier lineup, ALC loop is able to regulate theoutput power of the transmitter.
The antenna switch is switched synchronously with thekeyed 9.1 voltage. In the transmit mode, this 9.1 voltageis high—turning on diodes CR6502, CR6503 and CR1.When CR6502 is turned on, it forms a low impedance tothe RF transmit path and allows the signal to pass to theantenna via harmonic filter hybrid H6502. Diode CR1 inH6502 forms a low impedance that is transformed up toan open circuit through a quarter wavelength transmis-sion line. This prevents transmitter power from beingdelivered into the receiver. Diode CR6503 is also turnedon in transmit mode further isolating the receiver fromtransmitter energy. The transmitter power from theantenna switch passes to the antenna via harmonic filterhybrid module H6502. H6502 incorporates a low passfilter, which attenuates harmonic energy out of thetransmitter to specifications level.
In receive mode, diodes CR6502, CR6403 and CR1 are alloff. The off capacitance of CR6502 is tuned by L6512 toform a high impedance network looking into the trans-mitter. Therefore, received signal energy from theantenna is channeled to the input of the receiver withminimal loss maximizing sensitivity.
A forward power detector utilizing a directional coupleris included in the harmonic filter hybrid. This forward-power detector is a microstrip printed circuit, whichcouples a small amount of the forward energy to diodeCR2 where it is rectified. This rectified signal (VFOR-WARD) forms the forward voltage which the powercontrol circuit holds constant. Holding this voltage con-stant (which is proportional to the RF rectified energyappearing across the diode) ensures the forward-powerout of the radio is held to a constant value.
Thermistor R6519 senses temperature in a location nearQ6505. This signal is fed back into the power control cir-cuit to protect Q6505 against over-temperature condi-tions.
Resistor R6520, in series with the A+ line supply, feedsvoltage to Q6505. The voltage across R6520 is monitoredand the difference voltage is channeled to the powercontrol circuit. The power control circuit monitors thevoltage drop across the resistor, which is determined bythe magnitude of the collector current in Q6505. It usesthis as a limiting mechanism whereby the power controlcircuit limits the magnitude of current that can be drawnby Q6505. This protects the device from over dissipa-tion.
Bias voltage reverse polarity protection for the transmit-ter is provided by diode CR6508. Under reverse polarityconditions to the radio, this diode conducts and protectsthe radio from damage. This diode also provides tran-sient over-voltage protection by breaking down whenthe supply voltage to the radio exceeds 24 VDC.
Power Control Circuitry
The power control circuitry consists of three mecha-nisms:
Power Set
The control loop compares the power output level tothe pre-set value. The VFORWARD voltage from theforward power detector is amplified by U701 pins 5 -7,and compared to D/A U702-2 & 4. Should a differencebe detected, an error current is generated in the loopintegrator U702-8 & 9, until equilibrium is obtained.The use of 2 D/A outputs for power set enables finetuning where pin 2 is coarse tune through resistor R703and pin 4 is fine tune through resistor R706.
Current Limit
Current to the power module U6501 (or RF final deviceQ6505) is monitored using R6520 and compared to apre-set limit D/A U702-11 and U701-(1-3). When thelimit is exceeded, an error current is generated throughdiode CR721 to the loop integrator, which lessens thePA_CNTRL line and reduces the power amplifier out-put.
Thermal Protection
When the power module U6501 (or RF final deviceQ6505) overheats, the resistance of thermistor R6519drops. Because of the voltage divider formed by R721,R725, and R6519, this resistance drop is sensed andamplified through U701-(12-14). This causes a currenterror through diode CR721 to flow into the loop inte-grator and reduce transmitted output power.
When controller U101-45, detects a voltage propor-tional to 85 degrees Centigrade through R726-727 itreduces transmit power by 50 percent during subse-quent Tx key-ups.
Synthesizer Detailed FunctionalDescription
The complete synthesizer subsystem consists of refer-ence oscillator U5700, Fractional-N Synthesizer ICU5702, two on-board voltage controlled oscillators,buffer stage U5701, and two discrete buffer amplifiersQ5707, and Q5705.
Reference oscillator U5700 contains a temperaturecompensated crystal which operates at a frequency of16.8 MHz. The output of the oscillator U5700-10 isapplied to U5702-14 via R5715 and C5733.
There are two varactor tuned VCOs. The oscillator fre-quency is controlled by the voltage applied via L5701and L5702. This control voltage ranges from 2.5 to 10.5VDC. A lower control voltage produces a lower fre-
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Theory of Operation
Synthesizer Detailed Functional Description
quency and a higher control voltage produces a higherfrequency respectively.
The RX/TX VCO (896 - 902MHz band) provides thefirst LO injection frequency which is 39 MHz below theRX carrier frequency and TX injection for conventionalmode. The RX/TX VCO is selected by pulling U5702-1low.
The Talk-Around (TA) VCO (935 - 941MHz band) pro-vides the transmit frequency in TA mode. The TA VCOis selected by pulling U5702-1 high.
The buffer stage U5701 and feedback amplifier Q5703provide the necessary gain and isolation for the syn-thesizer 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 mod-ulation,
• Balance attenuator to balance the high and lowfrequency 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 voltageof the super filter U5702-18, drops from 9.3 VDC toabout 8.5 VDC. This filtered 8.5 VDC supplies voltagefor the VCOs, the VCO switching units U5704 & U5705,feedback amplifier Q5703, and synthesizer chargepump resistor network R5707- R5709.
The synthesizer supply voltage is provided by the 5VDC regulator U5703. The 2.1 MHz reference signal atU5702-11 is generated by dividing down the signal ofreference oscillator U5700 after it is applied to U5702-14.
In order to generate a high voltage that supplies thecharge pump output stage at VCP (U5702-32), 13 V DCis generated at pin 3 of CR5700 by the positive voltagemultiplier circuitry. This voltage multiplier is a diodecapacitor network driven by two 1.05 MHz, 180-degreeout-of-phase signals from U5702-9 &10.
The serial interface (SPI_DATA) is connected to themicroprocessor via the data line (U5702-5), clock line(U5702-6), and chip enable line (U5702-5). Proper
enabling of these lines allows the microprocessor toprogram the synthesizer.
The output of the VCO is fed to the buffer input port ofU5701-1. The output of the buffer U5701-5 is applied tothe input of the feedback amplifier Q5703 through anattenuator network consisting of R5735, R5733 andR5732. To close the synthesizer loop, the output ofQ5703 is connected to PREIN (U5702-20) of the synthe-sizer. The buffer output U5701-5 also provides the sig-nal for receiver LO injection and transmit injection line-up. 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 trans-form this current into a voltage that will, in turn, beapplied to Vcontrol of the VCOs and steer the outputfrequency.
In order to modulate the PLL a two-point modulationmethod is utilized. The audio signal is applied to boththe A/D converter (low frequency path) as well as thebalance attenuator (high frequency path) via U5702-8.
The A/D converter will convert the low-frequency,analog modulating signal into a digital code that willin turn be applied to the loop divider. This will causethe carrier to deviate. The balance attenuator is used toadjust the VCO deviation sensitivity to high frequencymodulating signals. The output of the balance attenua-tor is present at the MODOUT port U5702-28.
The transmit injection line-up consists of two amplifierstages, Q5707 & Q5705, used to provide a constant out-put to drive the RF transmitter and provide isolation.The Q5705 stage is actively biased through Q5701, andQ5707 has passive biasing. The TX injection line-up ison only during the transmit mode (K 9.1V line is at9.1 V).
The first VCO is used for receive LO_INJ and TX_INJin the conventional 896-902 MHz transmit band. Thesecond VCO is used for TX_ INJ in the talk-around 935-941 MHz transmit band.
The VCOs get their control voltage through L5701 andL5702. Q5704 and Q5706 are the oscillation transistors.C5793, C5792 and C5785, C5784 are the oscillator feed-back capacitors. U5706 and U5707 are micro strip reso-nators. CR5701 and CR5702 are the varactors. C5790and C5782 determine the VCO KV. C5703 and C5704determine the VCO operation frequency. C5791 andC5783 are the coupling capacitors between the tankand the oscillation transistor.
The two VCOs are coupled to buffer amplifier Q5702through C5789 and C5786. The buffer amplifier outputsignal is fed to U5701-pin 1 through C5770 & R5736.
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Theory of Operation GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Controller Detailed Functional Description
Controller Detailed FunctionalDescription
General
The radio controller consists of four main subsections:
• Digital Control
• Audio Processing
• Power Control
• Voltage Regulation
The digital section consists of a microprocessor, mem-ory ICs, glue logic circuitry, signal MUX ICs, On/Offcircuit, and general purpose Input/Output circuitry.
The controller is based on the Motorola 68HC11K1microprocessor-U101, 8-Kbyte SRAM-U103, 32 Kbyte-Flash memory-U102, and 8 Kbyte EEPROM -U104.
NOTEFrom this point on, the 68HC11K1 micro-processor will be referred to as K1µP orµP.References to a Control Head will be totype P+ (Display radio).
Voltage Regulators
Voltage regulation for the controller is provided by 3separate devices: +5 VDC U631, +9.3 VDC U601, andUNSW 5V (R621 and VR621). An additional regulatoris located in the RF section.
5 VDC regulation for the digital circuitry is providedby U631. Input and output capacitors C631, C632 andC633-635 are used to reduce high-frequency noise andprovide additional charge during short battery tran-sients. This regulator provides a reset output U631-5that drops to 0 VDC when the regulator output goesout of regulation. This is used to reset the controller inorder to prevent improper operation. Diode D631 pre-vents discharge of C632 by negative spikes on the 9.3voltage.
Regulator U601 is used to generate the 9.3 VDCrequired by some audio circuits, the RF circuitry andpower control circuitry. Input and output capacitorsC601-603 and C604-605 are used to reduce high-fre-quency noise. R602-603 set the regulator output volt-age. If the voltage at U601-1 is greater than 1.3 VDC theregulator output decreases and if the voltage is lessthan 1.3 VDC, the regulator output increases. This reg-ulator output is electronically disabled by a 0 VDC sig-nal on U601-2. Q601 and associated circuitry R601,R604-605 disable the regulator when the radio isturned off.
UNSW_+5V_CL is only used by a few circuits, whichdraw low current and require 5 VDC while the radio isoff.
UNSW_+5V_CL is used to save the internal U103 RAMdata. C622 allows the battery voltage to be discon-nected for a couple of minutes without losing RAMparameters. Diode D621 prevents radio circuitry fromdischarging this capacitor.
The SW_+B voltage is monitored by the µP throughvoltage divider R641-642. Diode VR641 limits thedivided voltage to 5.1 VDC in order to protect the µP.
Diode CR6508 located in the PA section acts as protec-tion against transients and reverse polarity of the sup-ply voltage.
Electronic On/Off
The radio has circuitry which allows radio softwareand/or external triggers to turn the radio on or offwithout direct user action. This allows, for example,automatic turn-on when ignition is sensed and offwhen ignition is off.
Q611 is used to provide SW_B+ to the various radio cir-cuits. Q611 acts as an electronic on/off switch con-trolled by Q612 (the switch is on while Q612 is on).When the radio is turned on, the voltage at the base ofQ612 is high (about 0.6 V). Q612 switches on (satura-tion) and pulls down the voltage at Q611-base. Thisturns on Q611 and supplies SW_B+ to the radio. The onresistance of Q611 is very low (less than 1 OHM), so thevoltage level at SWB+ is essentially the same as A+.
The electronic on/off circuitry can be enabled by themicroprocessor (through ASFIC, B+ _CONTROL), themechanical On/Off button on the control head(ON_OFF_CONTROL), or the ignition sense circuitry(IGNITION_CONTROL). If one of the three pathscauses a low at the collector of Q612, the electronic ONprocess is engaged.
Mechanical On/Off
This refers to the typical on/off button which is locatedon 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 pulse generatedby the ON_OFF “one-shot” circuitry in the controlhead. This switches the radio on. The microprocessor isalerted through line ANALOG_ 3 which is pulled tolow by Q925 (in Control Head Model P+) while the on/off button is turned on. If the software detects a lowstate, it asserts B+_CONTROL via ASFIC-GCB2, whichkeeps Q612 and Q611 on, and in turn the radio isswitched on.
When the on/off button is turned off, the softwaredetects the line ANALOG_3 changing to low andswitches the radio off by setting B+_CONTROL to low.
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GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Theory of Operation
Controller Detailed Functional Description
Ignition
Ignition sense is used to prevent the radio from drain-ing the vehicle’s battery while the engine is not run-ning.
When the IGNITION input goes above 1.3VDC, Q450,Q612 and Q611 turn on, supplying SW_B+ to the radioand enabling U601 and U631 to supply the regulatedvoltage (+5 VDC and 9.3 VDC) to all the circuitry. TheµP starts to run the software, reads the l ineIGNITION_SENSE, determines from the level that theIGNITION 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, Q450switches off and R441 pulls line IGNITION_SENSEhigh . The sof tware i s a le r ted by l ineIGNITION_SENSE to switch off the radio by setting B+CONTROL line to low. Whenever the IGNITION linegoes above 1.3 VDC, the above process will berepeated—depending if the radio was previously on oroff.
The ignition sense capability can be disabled by turn-ing switch S401-2 & 4 on. This supplies FLT_A+ viaR452 to the ignition sense pin continuously. The radiois shipped with ignition sense disabled.
Hook
The HOOK line is used to inform the µP when theMicrophone´s hang-up switch is engaged. Dependingon the radio’s programing , the µP turns the audio PAon or off. The signal is routed from J101-3 and J400-14through transistor Q101 to the K1µP U101-23. The volt-age range of HOOK in normal operating mode is 0-5VDC.
Microprocessor Clock Synthesizer
The clock source for the controller’s microprocessorsystem is generated by the ASFIC (U201). Upon power-up the synthesizer (U5701) generates a 2.1 MHz wave-form that is routed from the RF section (via C202) to theASFIC (on U201 XTAL_IN). For the main board con-troller, the ASFIC uses 2.1 MHz as a reference inputclock signal for its internal synthesizer. The ASFIC, inaddition to audio circuitry, has a programmable syn-thesizer which can generate a synthesized signal rang-ing from 1200 Hz to 32.769 MHz with steps of 1200 Hz.
While the radio is turned on, the ASFIC generates adefault 3.6864 MHz CMOS square wave µP CLK (onU201-UPCLK) which is routed to the µP (U101-EXTAL). After the µP starts operation, it reprogramsthe ASFIC synthesizer clock to a higher µP CLK fre-quency (usually 7.3728 or 14.7456 MHz) and continuesoperation.
The ASFIC synthesizer clock is controlled by the soft-ware, and may slightly be changed while harmonics of
this clock source interfere with the specific radioreceive frequency.
The ASFIC synthesizer loop components (C228, C229and R222) set the switching time and jitter of the clockoutput. If the synthesizer cannot generate the requiredclock frequency it will switch back to its default3.6864 MHz frequency.
Serial Peripheral Interface (SPI)
The µP communicates with the other programmableICs through its SPI port. This port consists of SPITRANSMIT DATA U101-1, SPI RECEIVE DATA U101-80, SPI CLK U101-2 and chip select lines going to thevarious programmable ICs. This BUS is a synchronousbus (the timing clock signal CLK is sent with SPITRANSMIT DATA or SPI RECEIVE DATA).
In the controller section, there are three ICs on the SPIBUS: ASFIC (U201-E3), EEPROM (U104-1) and D/A(U731-6). In the RF sections, there are 2 ICs on the SPIBUS: Pendulum (Reference Oscillator U5702-24) andSynthesizer (U5701-7). The SPI TRANSMIT DATA andCLK lines going to the RF section are filtered with L131and L132 to minimize noise. The chip select lines forthe ICs are decoded by the address decoder U105.
The SPI BUS is also used for the control head. U106buffers the SPI TRANSMIT DATA and CLK lines to thecontrol head. U106 serves also to switch off the CLKsignal for the LCD display while it is not selected viaLCD_CE signal.
When the µP needs to program any of these ICs, itdrops down the chip select line of the specific IC to alogic 0 and then sends the proper data and clock sig-nals. The data sent to the various ICs are different. Forexample the ASFIC receives 21 bytes (168 bits) whilethe DAC needs 3 bytes (24 bits). After the data has beensent the chip select line is returned to a logic 1.
SBEP Serial Interface
The SBEP serial interface line allows the radio to com-municate with the Radio Service Software (RSS). Thisinterface connects to the Microphone connector (J902)via Control Head connector (J101) and comprisesBUS+ (J101-15). The line is bi-directional, meaning thateither the radio or the DPS can drive the line.
The connection from the Control Head is madethrough the BUS+ line, via L421 (SCI_RSS line) anddiode CR151 to the U101-78-RxD and U101-79-TxDports.
Microprocessor (Open Controller)
For this radio, the K1µP is configured to operate in theexpanded or bootstrap modes. In expanded mode theK1µP uses external memory ICs, whereas in bootstrapmode it uses only its internal memory. In normal radio
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Controller Detailed Functional Description
operation, the K1µP is operating in the expandedmode.
In the radio expanded mode, the K1µP (U101) hasaccess to three external memory ICs: U102 (Flash mem-ory), U103 (SRAM), U104 (EEPROM). Also, within theK1µP there are 768 bytes of internal RAM and 640 bytesof internal EEPROM, as well as glue logic circuitry toselect external memory ICs.
The external EEPROM (U104) as well as the K1µP’sown internal EEPROM contain the radio informationwhich is customer specific, referred to as the codeplug.This information consists of items such as: 1) frequencyoperating band, 2) channel frequencies, and 3) generaltuning information. General tuning information andother more frequently accessed items are stored in theinternal EEPROM (within the 68HC11K1), while theremaining data is stored in the external EEPROM. (Seethe particular IC subsection for more details.)
The external SRAM (U103) as well as the K1µP’s owninternal RAM are used for temporary calculationsrequired by the software during normal radio opera-tion. All of the data stored in both of these locations islost when the radio is powered off. (See the particularIC subsection for more details.)
The Flash memory contains the actual Radio OperatingSoftware. This software is common to all radios for thesame model type. For example, Privacy Plus modelshave a different version of software in Flash memorythan an LTR model. (See the particular IC subsectionfor more details.)
The K1µP has an address bus of 16 address lines (A0-A15), a data bus of 8 data lines (D0-D7). and three con-trol lines; CSPROG (U101-29) to select U102-30 (OTPmemory), 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 usingchip select decoder U105. When the K1µP is function-ing normally, the address and data lines should bewithin 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 oper-ation. Whenever a data or an address line becomesunloaded or shorted to an adjacent line, a commonsymptom is that short negative pulses occur on theRESET line, with a period of 20 msec. When two linesare short-circuited, mid logic level (around 2.5 V) maybe observed, while these lines are opposite driven bytwo different ICs.
The MODA LIR (U101-77) and MODB VSTPY(U101-76) inputs to the K1µP must be at a logic 1 level
for proper operation. After the K1µP starts execution, itwill periodically pulse these lines to determine thedesired operating mode. While the Central ProcessingUnit (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 signalwaveform rise has an exponential shape, like an RC cir-cuit.
The µP has eight analog-to-digital converter ports (A/D): PE0 to PE7. These lines may measure voltage levelsin the range of 0 to 5 VDC and convert that level to anumber ranging from 0 to 255 which can be read by thesoftware to take appropriate action.
For example, U101-46 is the battery voltage detect line.R641 and R642 form a resistor divider on SW_B+. With47.5K and 16.2 K and a voltage range of 11 V to 17 V, theA/D port would see 2.74 V to 4.24 V which would thenbe converted to a digital value in the range of 140 to 217respectively.
U101-51 is the high reference voltage for the A/D portson the K1µP. Resistor R106 and capacitor C106 filter the+5 VDC reference. If this voltage is lower than +5 VDCthe A/D readings will be incorrect. Likewise U101-50is the low reference for the A/D ports. This line is nor-mally tied to ground. If this line is not connected toground, the A/D readings will be incorrect.
Capacitors C104, C105 serve to filter out any AC noisewhich may ride on +5VDC at U101.
One-Time Programmable (Flash) Memory
The 32-KByte Flash memory (U102) contains theradio’s operating software. This memory is read-only.The memory access signals (EN_CE, EN_OE andEN_WE) are generated by the µP.
Capacitor C131 serves to filter out any AC noise whichmay ride on +5V at U101, and C132 filters out any ACnoise on Vpp.
Electrically Erasable ProgrammableMemory (EEPROM)
EEPROM (U104) contains the radio’s operating param-eters such as operating frequency and signalling fea-tures, commonly known as the codeplug. It is also usedto store radio operating state parameters such as cur-rent mode and volume. U104 is a 8 Kbyte device. Thismemory can be written to in excess of 100,000 timesand will retain the data when power is removed fromthe radio. The memory access signals (SI, SO and SCK)are generated by the K1µP and chip select (CS_) is gen-erated by address decoder U105.
Additional EEPROM is contained in the K1µP (U101).This EEPROM is used to store radio tuning and align-ment data. Like the external EEPROM this memory can
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Controller Audio & Signaling Circuits
be programmed multiple times and will retain the datawhen power is removed from the radio.
NOTEThe external EEPROM plus the 640 bytesof internal EEPROM in the 68HC11K1comprise the complete codeplug.
Static Random Access Memory (SRAM)
The SRAM (U103) contains temporary radio calcula-tions or parameters that can change very frequently,and which are generated and stored by the softwareduring its normal operation. The information is lostwhen the radio is turned off. The device allows anunlimited number of write cycles. SRAM accesses areindicated by the EN_CS signal U103-20 (which comesfrom U101-28) going low. U103 is commonly referredto as the external RAM as opposed to the internal RAMwhich is the 768 bytes of RAM which is part of the68HC11K1. Both RAM spaces serve the purpose. How-ever, the internal RAM is used for the calculated valueswhich are accessed most often. Capacitor C133 servesto filter out any AC noise which may ride on +5VDC atU103.
Control Head
Control Head is available for user interface. The Con-trol Head contains the internal speaker, the micro-phone connector, several buttons to operate the radioand several indicator LEDs to inform the user aboutthe radio status. Additionally Control Head uses a 3digit LCD (Liquid Crystal Display) for the channelnumber.
When turned on, the On/Off switch turns the voltageregulators on by pulling ON_OFF_CONTROL to highand connects the base of Q925(P), Q825(K) to FLT_A+.This transistor pulls the line ANALOG_3 to low toinform the µP that the On/Off button is pressed. If theradio is switched off, the µP will switch it on and viceversa. All other buttons work the same way. If a buttonis pressed, it will connect one of the 3 lines ANALOG_1,2,3 to a resistive voltage divider connected to +5VDC.The voltages of the lines are A/D converted inside theµP and specify the pressed button.
All the back light and indicator LEDs are driven by cur-rent sources and controlled by the µP via SERIALPERIPHERAL INTERFACE (SPI) interface. The LEDstatus is stored in shift register U941(P). Line LED CEenables the serial write process via Q941(P), while lineLED CLCK BUF shifts the data of line SPI DATA BUFinto the shift register.
In addition Control Head contains the LCD H931, thedisplay driver U932 and a transistor Q953 to switch thedisplay driver on and off. Q953 is controlled by the µPvia shift register U941, The display data of line SPI
DATA BUF is shifted into the display driver by clocksignal LCD CLCK BUF.
Controller Audio & SignalingCircuits
General
Audio Signalling Filter IC (ASFIC)
The ASFIC (U201) used in the controller has four func-tions;
• RX/TX audio shaping, i.e. filtering, amplifica-tion, attenuation
• RX/TX signalling, PL/DPL/HST/LST
• Squelch detection
• Microprocessor clock signal generation (seeMicroprocessor Clock Synthesizer DescriptionBlock).
The ASFIC is programmable through the SPI BUS(U201-E3/F1/F2), normally receiving 21 bytes. Thisprogramming sets up various paths within the ASFICto route audio and/or signalling signals through theappropriate filtering, gain and attenuator blocks. TheASFIC also has 6 General Control Bits GCB0-5 whichare CMOS level outputs. They are used for AUDIO_PA _ENABLE (GCB0) to switch the audio PA on andoff, EXTERNAL_ALARM (GCB1) to toggle theEXTERNAL_ALARM pin on the accessory connectorJ400-4, B+_CONTROL (GCB2) to switch the voltageregulators (and the radio) on, HIGH_LOW_BAND(GCB4) to enab le/disba le HearClear andFAST_OFF_IGN (GCB5) which forces the radio-onlatch to the off condition. GCB3 is not used.
Audio Ground
VAG is the dc bias used as an audio ground for the op-amps that are external to the Audio Signalling Filter IC(ASFIC). U251 forms this bias by dividing 9V3Vwithresistors R251, R252, and buffering the 4.65 VDC resultwith a voltage follower. VAG emerges at pin 1 of U251.C235 is a bypass capacitor for VAG. The ASFIC gener-ates its own 2.5V bias for its internal circuitry. C221 isthe bypass for the ASFIC’s audio ground dc bias.
NOTEWhile there are ASFIC VAG, and BOARDVAG (U201-1), each of these are sepa-rated. They are not connected together.
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Controller Audio & Signaling Circuits
Transmit Audio Circuits.
Mic Input Path
The radio provides two microphone inputs, one on thecontrol head (internal mic audio) routed through J101-16), and one on the accessory connector J400-2 (exter-nal mic audio). The two inputs are connected in paral-lel. The dc bias required by the microphone is providedby resistor R205, derived from the 9V3 source and fil-tered by R204 and C209. The microphone audio signalis applied via R206 and C211, to the ASFIC at U201-B8.
Filter capacitor C210 provides low-pass filtering toeliminate frequency components above 3 kHz, andC211 serves as a DC blocking capacitor. The audio sig-nal 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 connec-tor J400-5 is buffered by op-amp U202-(1-3) and fed viaC205 to the ASFIC U201-D7.
PTT Sensing and TX Audio Processing
MIC PTT is sensed by the µP. PTT can also be generatedby grounding pin 3 on the radio accessory connector,J400. When microphone PTT is sensed, the µP willalways configure the ASFIC to enable the mic audio
path. PTT can be configured to enable the EXT_MICaudio path when J400-2 is connected with an externalmic audio input. Data PTT is configured to enable theflat transmit audio path (when J400-5 is configured forFLAT_TX_AUDIO).
Inside the ASFIC, the mic audio is filtered to eliminatecomponents outside the 300-3000Hz voice band andpre-emphasize. The capacitor, C231, between ASFICpre-emphasis out U201-C8 and ASFIC limiter in U201-E8 AC couples the signal between ASFIC blocks andprevents the DC bias at the ASFIC output U0201-H8from shifting when the ASFIC transmit circuits areenabled. The signal is then limited to prevent the trans-mitter from over deviating. The limited mic audio isthen routed through a summer which is used to add insignalling data, and then to a splatter filter to eliminatehigh frequency spectral components that could be gen-erated by the limiter. The audio is then routed to theVCO attenuator, which is tuned in the factory or thefield to set the proper amount of FM deviation. The TXaudio emerges from the ASFIC at U201-H8 MOD IN,and is routed to the RF section as MOD IN.
Transmit Signalling Circuits
See Figure 8-4 for reference for the following sections.From a hardware point of view, there are three types ofsignalling:
Figure 8-3. Transmit Audio Paths
TO RF
C7A6
E8C8
J400
ACCESSORY
J101
CONTROL HEAD
MIC
EXT MIC
FLAT TX D75
B8
16
2
FILTERS &
LS SUMMER
SPLATTER
HS SUMMER
LIMITERATTENUATOR
VCO
TX INMIC AMP OUT
MIC IN
AUX TX IN
PRE EMP OUT LIM IN
ASFIC U201
MOD IN
PREEMPHASIS
CONNECTOR
CONNECTOR
FILTER
ATN
SECTION(SYNTHESIZER)
AUDIO
D3
F3
COMP BUF IN
HEARCLEAR IC U350
COMP OUT
HPF
H8
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Controller Audio & Signaling Circuits
• Sub-audible data (PL/DPL/LST/Connect tone)that gets summed with transmit voice or signal-ling,
• DTMF data for telephone communication intrunked and conventional systems, and
• Audible signalling High speed Trunking.
NOTEThe hardware supports all three typeswhile the radio software determineswhich signalling type is available.
Sub-audible Data (PL/DPL)
Sub-audible data implies signalling whose bandwidthis below 300Hz. PL and DPL waveforms are used forconventional operation and connect tones for trunkedvoice channel operation. The trunking connect tone issimply a PL tone at a higher deviation level than PL ina conventional system. Although it is referred to as“sub-audible data,” the actual frequency spectrum ofthese waveforms may be as high as 250 Hz, which isaudible to the human ear. However, the radio receiverfilters out any audio below 300Hz, so these tones arenever heard in the actual system.
Only one type of sub-audible data can be generated byU201 (ASFIC) at any one time. The process is as fol-lows, using the SPI BUS, the µP programs the ASFIC toset up the proper low-speed data deviation and selectthe PL or DPL filters. The µP then generates a squarewave which strobes the ASFIC PL/DPL encode inputPL CLK U201-C3 at twelve times the desired data rate.For example, for a PL frequency of 103 Hz, the fre-quency of the square wave would be 1236 Hz.
This drives a tone generator inside U201 which gener-ates a staircase approximation to a PL sine wave or
DPL data pattern. This internal waveform is then low-pass filtered and summed with voice or data. Theresulting summed waveform then appears on U201-H8 (MOD IN), where it is sent to the RF board as pre-viously described for transmit audio. A trunking con-nect tone would be generated in the same manner as aPL tone.
High Speed Data
High speed data refers to the 3600 baud data wave-forms, known as Inbound Signalling Words (ISWs)used in a trunking system for high speed communica-tion between the central controller and the radio. Togenerate an ISW, the µP first programs the ASFIC(U201) to the proper filter and gain settings. It thenbegins strobing U201-G1 (TRK CLK IN) with a pulsewhen the data is supposed to change states. U201’s 5-3-2 State Encoder (which is in a 2-state mode) is thenfed to the post-limiter summer block and then thesplatter filter.
From that point it is routed through the modulationattenuator and then out of the ASFIC to the RF board.Microphone audio is muted during High Speed Datasignalling.
Dual Tone Multiple Frequency (DTMF) Data
DTMF data is a dual tone waveform used duringphone interconnect operation. It is the same type oftones which are heard when using a “Touch Tone” tele-phone.
There are seven frequencies, with four in the 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
G1
C3
G2
H8
MOD IN
TO RF SECTION
6
7
5 HIGH SPEED
CLOCK IN
LOW SPEED
CLOCK
DTMF
CLOCK
ASFIC U201
MICRO
U101
HS
5-3-2 STATE
DTMF
SPLATTER
PL/DPL/LST LS
ATTENUATOR
CONTROLLER
FILTER
SUMMER
SUMMER
ENCODER
ENCODER
ENCODER
(SYNTHESIZER)
Figure 8-4. Transmit Signalling Paths
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Controller Audio & Signaling Circuits
tones less than 1440Hz or twice the frequency for tonesgreater than 1440Hz. The low group tone is generatedby the µP (U101-7) strobing U201-G2 (DTMF CLCK) atsix times the tone frequency. Inside U201 the low-group and high-group tones are summed (with theamplitude of the high group tone being approximately2 dB greater than that of the low group tone) and thenpre-emphasized before being routed to the summerand splatter filter. The DTMF waveform then followsthe same path as was described for high-speed data.
Receive Audio Circuits
Squelch Detect
The radio’s RF circuits are constantly producing anoutput at the discriminator (U5201-28). This signal
DET_AUDIO is routed to the ASFIC’s squelch detectcircuitry input SQIN (U201-H7). All of the squelchdetect circuitry is contained within the ASFIC. There-fore from a user’s point of view, DET_AUDIO entersthe ASFIC, and the ASFIC produces two CMOS logicoutputs based on the result. They are CHACT(U201-H2) and SQDET (U201-H1).
The squelch signal entering the ASFIC is amplified, fil-tered, attenuated, and rectified. It is then sent to a com-parator to produce an active high signal on CHACT. Asquelch tail circuit is used to produce SQDET(U201-H1) from CHACT. The state of CHACT and SQDET is high (logic 1) when carrier is detected, other-wise low (logic 0).
CHACT is routed to U101-25 while SQDET adds upwith LOCK_DET, weighted by resistors R113 and R114,
Figure 8-5. Receive Audio Paths
J40011
161
EXT RX AUDIO
EXTERNAL
INTERNAL
ACCESSORY CONNECTOR
CONTROL HEAD CONNECTOR
HANDSET14
1
2J101
INT
SPKR+SPKR-
1
9
ATTEN.
H6
J7
DET AUDIO
H7
J4
INT
4
6
RX IN
PL IN
SQ IN
ASFIC U201
AUDIO
VOLUME
FILTER &
H1
MICRO 10
FROM
LIMITER, RECTIFIER
SQ DET
UNAT RX OUT
SQUELCH
H2
PL FILTER
CH ACT
EXP AUDIO INJ5
A4PL
H5RX AUD OUT
25 68
SPEAKER
SPEAKER
AUDIO
DEEMPHASIS
ATTEN.
RF SECTION(IFIC)
(DISCRIMINATOR AUDIO)
FILTER, COMPARATOR CIRCUIT
CONTROLLERU101
LIMITER
SPKR+ SPKR-
PA
U401
LIM
F4FF OUT
EXP OUT
C1EXP IN
HEARCLEARU350
A2
E4FFIN
13 INT SPKR+ JUMPER
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Controller Audio & Signaling Circuits
and is routed to an A/D converter input U101-43. Fromthe voltage weighted by the resistors the µP deter-mines whether SQDET, LOCK_DET or both are active.
SQDET is used to determine all audio mute/unmutedecisions except for Conventional Scan. In this caseCHACT is a pre-indicator as it occurs slightly fasterthan SQDET.
Audio Processing and Digital Volume Control
The receiver audio signal enters the controller sectionfrom the IF IC (U5201-28) on DET_AUDIO and passesthrough RC filter R203 and C208 which filters out IFnoise. The signal is AC coupled by C207 and enters theASFIC via PLIN U201-J7.
Inside the ASFIC, the signal goes through two paths inparallel, the audio path and the PL/DPL path.
The audio path has a programmable amplifier, whosesetting is based on the channel bandwidth beingreceived, then a LPF filter to remove any frequencycomponents above 3000Hz and then an HPF to strip offany sub-audible data below 300Hz. Next, the recov-ered audio passes through a De-emphasis filter to com-pensate for Pre-emphasis which is used to reduce theeffects of FM noise. The IC then passes the audiothrough the 8-bit programmable attenuator whoselevel is set depending on the value of the volume con-trol. Finally the filtered audio signal passes through anoutput buffer within the ASFIC. The audio signal exitsthe ASFIC at RX_AUDIO (U201-J4).
The µP programs the attenuator, using the SPI bus,based on the volume setting. The minimum /maxi-mum settings of the attenuator are set by codeplugparameters.
Since sub-audible signalling is summed with voiceinformation on transmit, it must be separated from thevoice information before processing. Any sub-audiblesignalling enters the ASFIC from the IF IC at PLINU201-J7. Once inside it goes through the PL/DPL path.
The signal first passes through one of 2 low pass filters,either PL low pass filter or DPL/LST low pass filter.Either signal is then filtered and goes through a limiterand exits the ASFIC at PLLIM (U201-A4). At this pointthe signal will appear as a square wave version of thesub-audible signal which the radio received. Themicroprocessor, U101-10 will decode the signal directlyto determine if it is the tone/code which is currentlyactive on that mode.
Audio Amplification Speaker (+) Speaker (-)
The ASFIC’s received audio signal output, U201-J4, isrouted through a voltage divider formed by R401 andR402 to set the correct input level to the audio PA(U401). This is necessary because the gain of the audioPA is 46 dB, and the ASFIC output is capable of over-driving the PA unless the maximum volume is limited.
The audio then passes through C401 which providesAC coupling and low frequency roll-off. C402 provideshigh frequency roll-off as the audio signal is routed topins 1 and 9 of the audio power amplifier U401.
The outputs of the Audio PA (U401 pins 4 and 6) arerouted to the external speaker via the accessory con-nector (J400-16 EXT SPKR+, and J400-1 EXT SPKR-,respectively). One terminal of the radio’s internalspeaker (+) is connected to J400-13 (INT SPKR+), andthe other (-) to U401-6. To enable the internal speaker, ajumper plug is inserted into J400 which connects pins13 and 16 together. This completes the path betweenthe audio power amp U401-4 and the internalspeaker’s (+) terminal.
The audio power amplifier has one inverted and onenon-inverted output that produces the differentialaudio output OUT1 and OUT2 (U401-4 & 6). Theinputs for each of these amplifiers are pins 1 and 9respectively; these inputs are both tied to the receivedaudio. The audio PAs DC bias is not activated until theaudio PA is enabled at pin 8.
The audio PA is enabled via AUDIO_PA_ENABLE sig-nal from the ASFIC (U201-B5). When the base of Q401is low, the transistor is off and U401-8 is high, usingpull up resistor R406, the audio PA is ON. The U401-8must be above 8.5VDC to properly enable the device. Ifthe voltage is between 3.3 and 6.4V, the device will beactive but has its input (U401-1/9) off. This is a mutecondition which is not employed in this radio design.R404 ensures that the base of Q401 is high on powerup. Otherwise there may be an audio pop due to R406pulling U401-8 high before the software can switch onQ401.
The audio PA can also be muted externally when in theData Modem mode, which is selected by turningswitch S401 (1-3) off. This forces analog switch controlline U402-9 high via R442, changing its state. If J400-12is pulled low, this is transferred via pins 14 and 1 ofU402 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 audioPA have a DC bias which varies proportionately withFLT A+ (U401-7). FLT A+ of 11V yields DC offset of 5V,and FLT A+ of 17V yields a DC offset of 8.5V. If eitherof these lines is shorted to ground, it is possible that theaudio PA will be damaged. The audio PA containsinternal short-circuit protection, however this situationshould be avoided. EXT_SPKR+ and EXT_SPKR- arerouted to the accessory connector (J400-16 & 1) and, viathe jumper plug connecting J400-16 to 13, to the controlhead (connector J101-1 & 2).
Handset Audio
Certain hand-held accessories have a speaker withinthem which require a different voltage level than thatprovided by U401. For those devices HANDSET
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AUDIO is available at control head microphone jackJ903-8.
The received audio from the output of the ASFIC’s dig-ital volume attenuator (U201-J4) is also routed toU202-9 where it is amplified 15 dB; this is set by the10k/68k combination of R233 and R232. This signal isrouted from the output of the op amp U202- 8 to J101-14. The control head sends this signal directly out to themicrophone jack. The maximum value of this output is6.6Vp-p.
External Rx Audio
RX Audio is also routed to the accessory connectorJ400-11. This audio level is fixed and not affected by thesetting of the digital volume attenuator. The source ofthis audio is selectable as follows:
In the Data Modem mode (switch S401, 1-3 off), U402-9 is high, and FLAT_ RX_AUDIO, directly from detec-tor U5201-28 via C230 and R236, is routed from U402pin 10 to pin 5, amplified by U403 and applied to J400-11 via R419 and C419.
In Normal mode (switch S401 1-3 on), U402-9 is low,and GATED_RX_AUDIO, from ASFIC U201-H5 viaC237 and R235, is routed from U402 pin 6 to pin 5,amplified by U403 and applied to J0400-11 via R419and C419. The values of R235 and R236 provide thecorrect audio levels for GATED and FLAT_RX_AUDIO paths, respectively. The GATED_RX_AUDIOsignal is PL-filtered, de-emphasized, and controlled bythe squelch mute gate. The FLAT_ RX_AUDIO signal isnon-de-emphasized, unmuted, and is flat between
0.6 Hz and 3 kHz. The radio is shipped configured forNormal mode operation.
Receive Signalling Circuits
Sub-audible Data (PL/DPL) and High Speed DataDecoder
The ASFIC (U201) is used to filter and limit all receiveddata. The data enters the ASFIC at U201-J7. Inside U201the data is filtered according to data type (HS or LS),then it is limited to a 0-5V digital level. The trunkinghigh speed data appears at U201-G4, where it connectsto 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 outputa sampling waveform depending on the samplingtechnique to U201-C3 between 1 and 2 kHz.
The low speed data is read by the µP at twice the fre-quency of the sampling waveform; a latch configura-tion in the ASFIC stores one bit every clock cycle. Theexternal capacitors C223, C225, and C226 set the lowfrequency pole for a zero crossings detector in the lim-iters for PL and HS data. The hysteresis of these limit-ers is programmed based on the type of received data.
NOTEDuring HS data, the µP may generate asampling waveform seen at U0201-G1.
DET AUDIO
G4
A4
C5 J3
G1 C3
J7
11
10
6 5LOW SPEED
PLIN
RX LIM
PL
RX
LOW SPEED
HIGH SPEED
DATA FILTERLIMITER
FILTER LIMITER
ASFIC U201
MICRO
U101
DISCRIMINATOR AUDIOFROM RF SECTION(IFIC)
CLOCK CLOCK
& DEEMPHASIS
CONTROLLER
LIM
CAPLIM CAP
LIMOUT
Figure 8-6. Receive Signalling Path
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Controller Audio & Signaling Circuits
Alert Tone Circuits
When the software determines that it needs to give theoperator an audible feedback (for a good key press, orfor a bad key press), or radio status (trunked systembusy, phone call, circuit failures), it sends an alert toneto the speaker.
It does so by sending SPI BUS data to U201 which setsup the audio path to the speaker for alert tones. Thealert tone itself can be generated in one of two ways:internally by the ASFIC, or externally using the µP andthe ASFIC.
The allowable internal alert tones are 304, 608, 911, and1823Hz. In this case a code contained within the SPIBUS load to the ASFIC sets up the path and determinesthe tone frequency, and at what volume level to gener-ate the tone. (It does not have to be related to the voicevolume setting).
For external alert tones, the µP can generate any tonewithin the 100-3000Hz audio band. This is accom-plished by the µP generating a square wave whichenters the ASFIC at U201-C3.
Inside the ASFIC, this signal is routed to the alert tonegenerator; the output of the generator is summed intothe audio chain just after the RX audio de-emphasisblock. Inside U201 the tone is amplified and filtered,then passed through the 8-bit digital volume attenua-tor, which is typically loaded with a special value foralert tone audio. The tone exits at U201-J4 and is routedto the audio PA like receive audio.
Hear Clear IC
Hear Clear (HC) is used for 900 MHz radios. The HChas three functions within the IC which are used by theradio: 1) Compressor, 2) Flutter Fighter, and 3)Expander Circuits. There are six enable/control lineson the Hear Clear IC which determine its mode ofoperation. The IC ENAB line U350-C4 is tied to 9.3 sowhenever the IC is placed on the board, it is alwaysactive. The remaining five lines are contolled by theASIFIC General Control Bit Line. Table 8.1 below sum-marizies the logic control and the IC states.
Transmit Path for Radios with Hear Clear
For transmit, the audio signal comes from the appro-priate microphone and enters the ASFIC at U200-B8.After entering the ASFIC, the signal is internallyrouted to U200-A6 ASFIC MIC AMP OUT, where itleaves the ASFIC and enters the Hear Clear compressorat U350-D3. The signal then exits the compressor atU350-F3, where it is routed back to the ASFIC U200-C7.C361 provides AC coupling. Inside the ASFIC, the sig-nal goes through LPF and HPF that limits the signalbetween 0.3-3 kHz . The signal is then pre-emphasizedand exits the ASFIC at U200-C8 and enters the ASFICat U200-E8. Again inside the ASFIC, the signal goes
through a limiter, splatter filter, and an attenuatorwhich sets the amplitude (deviation level) of the signal.
The purpose of having a compressor in the transmitmode is twofold: 1) improve S/N ratio for low levelaudio, and 2) maintain the same dynamic range of12.5 kHz bandwidth channel as obtained in the 25 KHzbandwidth.
The compresssor raises low level signals and lowershigh level signals. The compressor circuit produces asignal whose output voltage at pin U350-F3 is based onthe input voltage level (0200-A6) of the signal. Thevoltage transfer function is:
• 20 mV input == 40 mV output
• 80 mV input == 80 mV output
• 50 mV input == 110 mV output
Receive Path for Radios with Hear Clear
The audio signal enters the Hear Clear controller fromBBR signal on DISC. The discriminated audio “DISC”enters the Hear Clear Flutter Fighter through C300 andC367. C300 connects the signal to FF IN (U350-E4).C367 is a beginning of a noise sampling circuit consist-ing of components: C367, R356, R353, C364, C363, R354and R355, R357, and C365; and Hear Clear ports Ref,Noise Filter In, and Noise Filter Out, Noise Hold.
After exiting Hear Clear at the “FF OUT” (U350-F4),the signal enters ASFIC at RX IN (U200-H6). Within theASFIC, the signal passes through a low filter and highpass filter limiting the audio band width to 0.3-3 kHz.It then goes through de-emphasis and exits the ASFICat U200-H5 FILTERED AUDIO.
After exiting the ASFIC at FILTERED AUDIO, the sig-nal passes through capacitor C350, which provides ACcoupling. The signal then enters the HEAR CLEAR atEXP IN (U350-C1) and exits the HEAR CLEARExpander at EXP OUT (U350-A2). The normalized sig-nal is then routed back to the ASFIC through C360 forvolume adjustment, entering at U200-J5 and exiting theASFIC at U200-J4 as RX AUDIO. The audio is trhenrouted to the Audio PA in the same manner as stan-dard receive audio.
The purpose of Flutter Fighter is to sample the amountof Noise in the receive audio between 10 - 20 Khz usingthe Noise Filter in (U350-B5, Noise Filter Out (U350-C6) and Noise Hold (U350-D5). In addition, it monitorsthe rate of change of RSSI (Receive Signal Strength In)(U350-F5). The discriminated audio DISC enters intothe Hear Clear Ic at ”FF IN” (U350-E4). The circuit thenreduces the amount of popping Noise associated withfading. The improved audio exits the IC at ”FFOUT”(U350-F4).
The expander is used after de-emphasis but before theASFIC volume attenuation. The purpose of the
8-16 6880906Z19-O September, 2000
Theory of Operation GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Controller Audio & Signaling Circuits
expander is to transpose the compressed audio back to“normal” audio. As with the compressor circuit, theexpander circuit adjusts the amplitude of a signalbased upon its input amplitude, NOT its frequency.
The vol tage transfer funct ion is : EXPOUT=0.41*(EXPIN/0.28)2.
Example :
100 mV EXPIN == 52 mV EXPOUT
191 mV EXPIN == 191 mV EXPOUT
250 mV EXPIN == 327 mV EXPOUT
NOTEThis operation is NOT a function of fre-quency between 300 Hz and 3 kHz .
Hear Clear Routing of Data/Signalling
While transmitting, all data and signalling bypassesthe Hear Clear Compressor.
While receiving, subaudible signals PL/DPL gothrough the Flutter Fighter along with the audio, and isunaffected by the Flutter Fighter operation. On enter-ing the ASFIC, the sub-audible signaling is separatedfrom the voice and decoded. Sub-audible signalingnever goes through the expander.
While receiving, data and high speed signalling (notsub-audible), the Flutter Fighter is set to “pass throughmode”. In this mode, the Flutter Fighter is routed from“FF IN” to “FF OUT” without any adjustment.
Accessory Connector Configurations
The configuration of the pins of accessory connectorJ400 can be changed to support different accessories bychanging the settings of dual switch S401.
S401 (pins 2-4) is turned ON if external Ignition Senseis not used, and turned OFF if an external IgnitionSense cable is installed. The operation of the IgnitionSense circuitry is described above in the “ElectronicOn/Off” and “Ignition” sections of the ControllerDetailed Functional Description.
S401 (pins 1 and 3) is turned ON to support RemoteDesk Set, Public Address and External Alarm, and isturned OFF to configure the accessory connector forExternal Data Modem applications.
NOTEThe radio is shipped with Ignition Sensedisabled. and Remote Desk Set, PublicAddress and External Alarm enabled.
Remote Desk Set
For Remote Desk Set applications, switch S401 (1-3)should be ON. This pulls the analog switch control lineU402-9 low, and the switch positions of U402 are asshown in the schematic. The PTT signal from the deskset 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 andR431) to µP port U101-22. The hook signal at U400-14 isinverted 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 audioinput and applied to ASFIC U201-B8. DC bias requiredby microphone is provided by R204 and R205.GATED_RX_AUDIO which is de-emphasized andcontrolled by the squelch mute gate is obtained from
Table 8-1. Hear Clear Enable Lines Configuration
LogicState
Name Ref. Des Set By TX1 RX1 TX2 RX2
IC Enable UC350-C4 9V3 1 1 X
Flutter Fighter Enable UC350-E3 U000-A2 X 1 X 0
LO Clamp Disable UC350-A5 U200-A2 1 1 1 X
LO Clamp Disable UC350-C2 U200-A2 0 0 X 0
HCI Disable UC350-B6 U200-A2 1 1 X 1
LO Clamp Disable UC350-D1 U200-A2 0 0 X 0
TX1: transmit mode with carrier squelch, PL or DPL
RX1: receive voice with carrier squelch, PL or DPL
TX2: transmit mode with all other data HST/MDC/DTMF etc.
RX2: refers to receive mode with all other data HST/MDC/DTMF
Logic State “X” means either 1 or a 0, i.e. ‘don’t care”.
September, 2000 6880906Z19-O 8-17
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Theory of Operation
Controller Audio & Signaling Circuits
ASFIC U201-H5, buffered and amplified by U403 andsent to the desk set at J400-11.
Public Address
Public address operation requires an accessoryHLN9322 Public Address Switch Box and one or moreHSN1000 amplified speakers. In the Public Addressmode, the radio functions simply as a junction boxwhich routes microphone audio from the front panelconnector directly to the switch box via J400-2, where itis further amplified and routed to the amplified speak-ers. Additionally, the microphone PTT does not key thetransmitter, and the microphone off-hook condition isignored, appearing to be on-hook.
For Public Address operation, switch S401 (1-3) shouldbe ON. This pulls the analog switch control line U402-9low, and the switch positions of U402 are as shown inthe schematic. When Public Address mode is turnedon using the Switch Box, the switch box pulls J400-12low. This signal is passed through switch U402 frompin 14 to 15, which also goes low. The hook line ispulled low by D401, forcing the microphone to appearon-hook. The control line to gate U203-4, normallyhigh via R433, is pulled low, turning off U203 and pre-venting MIC PTT from being applied to the µP. Thus,microphone audio is routed to the public addressspeakers but the radio does not transmit, and receiveroperation is maintained in the same condition it waswhen the microphone was on-hook.
SW_B+ from J400-9 is supplied to the switch box,where it powers the internal amplifier stages and alsoturns on a rely which applies battery voltage to theexternal amplified speakers. Thus, when the radio isturned off, all PA circuits and amplified speakers areturned off as well.
External Alarm
For External Alarm installations, switch S401 (1-3)should be ON. This pulls the analog switch control lineU402-9 low, and the switch positions of U402 are asshown in the schematic. When the radio’s alarm modeis enabled and the proper code has been received,ASFIC port U201-A3 goes high, turning on Q411 viaU402-(11-13) and R411, saturating Q411 and pullingJ400-4 low.
For External Alarm installations, switch S401 (1-3)should be OFF. This pulls the analog switch control lineU402-9 high via R442, and the switch positions of U402are the opposite from those shown in the schematic.
Data Modem
For Data Modem installations, switch S401 (1-3) shouldbe OFF. This pulls the analog switch control line U402-9 high and the switch positions of U402 are thrownopposite of that shown in the schematic.
NOTEAll Data Modem I/O functions are activelow, 0 VDC.
The reconfigured pin functions of accessories connec-tor J400 are as follows:
J400-12 is an input to the radio which allows the datamodem to mute the radio’s speaker audio while databursts are being received. The modem pulls J400-12low, which is routed through switch U402 from pin 14to 1, and turns on Q415 and, therefore, Q401. This pullsU401-8 low, muting the audio power amplifier.
J400-4 is an output from the radio which tells themodem that the radio is transmitting by pulling J400-4low. Two non-simultaneous conditions are summed torecognize transmit mode under all timing conditions.If PTT is low, Q410 is off and a high is provided viaR440, D403, U402 pins 12-13, and R411, to turn on Q411and pull J400-4 low. If the transmit-enable voltageK9V1_ENABLE is high, a high is provided via D403,U402 pins 12-13, and R411, to turn on Q411 and pullJ0400-4 low.
J400-15 provides system busy indication by observingthe status of the AUDIO_PA_ENABLE line, which islow during active receive conditions. This low is pro-vided to J400-15 via D402, indicating a signal is beingreceived.
J400-3 is DATA_PTT input to the radio, routed viaswitch U402 pins 4 to 3, to U101-8. The ASFIC (U201) isconfigured for FLAT_TX_AUDIO when DATA_PTT isasserted at U101--8.
J400-5 provides a FLAT_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 isnot reconfigured by the setting of switch S401 (1-3).
J400-11 provides a Flat/Unmuted RX Audio Outputfrom the radio. This audio is obtained directly fromdetector U5201-28 via C230 and R236, is routed fromU402 pin 10 to pin 5, amplified by U403 and applied toJ400-11 via R419 and C419.
RSSI Buffer
For special applications, a DC voltage proportional toreceived 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-strengthvoltage is provided by detector U5201-11, buffered byU202 (pins 12, 13, 14), and routed via R215 to J400-15.
8-18 6880906Z19-O September, 2000
Theory of Operation GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Controller Audio & Signaling Circuits
September, 2000 6880906Z19-O 9-1
Section 9Troubleshooting
OverviewThis section contains six troubleshooting tables for thefollowing GTX components:
• Receiver
• Synthesizer
• 12W/30W Power Amplifier
• Controller
• Control Head
Troubleshooting Charts
9-2 6880906Z19-O September, 2000
Troubleshooting GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Troubleshooting Charts
Start
Is K9.1 0 V
Is AUDIO_DET
Check
Check RX_INJ<-
>-50dBm
Check
Check
Check
Check LO_INJ <0dBm
>0dBm
Check
Check IF <-35dBm>-35dBm
Is <-38dBm
Is DC
Replace
Is <-48dBm,
Replace
RF input level is -47dBm.
Is <-35dBmCheck
Is <-20dBmCheck
Is <-22dBmCheck
All the levels indicated have
NoYes
Yes
Yes
No
No
No
Replace
Yes
YesNo
Yes No
DC circuit.
logic circuit.
Rx/Tx switch.
synthesizer
controllercircuit.
Y5201.
Q5201.
Y5202.
U5211. Q5301.
level.
levelon L5401.
present on
R5302.
Circuit.
present at
AC level0.1Vrms,
1KHz?
End
Y5202-3?
Y5202-1?
45.1MHz, presentat U5211-5?
Noat Q7420-C?
50dBm
a tolerance of 10%.
NOTE: level.
Is
present at RF_REG_5V
Q5320 E-2?
Yes
Yes
Yes
Y5201-3?
present on
prsent on
C5312?
present acrossR5302?
No
No
B
Troubleshooting Flow Chartfor Receiver
September, 2000 6880906Z19-O 9-3
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Troubleshooting
Troubleshooting Charts
Troubleshooting Flow Chartfor Receiver (cont.)
Check RF level
Check RF &
>-18 dBM >-18 dBM
Start
Check 9.3 VDC at
9.3V
Check DC
Check ADAPT Check
Check DC at
5V
Check
>1V
<4.7V
<9V
Is RF level
Is RF level
Check
Check FL5201
Check FL5202
-13 dBm 2dB
-3 dBm 2dB
-3 dBm 2dB
OV
Check
No
No
Yes
Yes
Yes
B
IF circuit.
at C5208.
at U5201-22.
DIFFERENCEBETWEENIN & OUT
DIFFERENCEBETWEENIN & OUT
DIFFERENCEBETWEENIN & OUT
U5201.
on Y5211 at44.645MHz?
on FL5201 IN & OUTat 455KHz? circuit.
circuit.
Y5211circuit.
control circuit.
DC circuit.
circuit. U5201-13.
C5251.
Is RF levelon FL5202 IN & OUT
at 455KHz?
No
9-4 6880906Z19-O September, 2000
Troubleshooting GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Troubleshooting Charts
Check C5738, C5724,C5713, L5709.
Troubleshooting Flow Chartfor Synthesizer
Start
Controller
Check synthesizerloop filter.
Replace U5702.
212mV onC5750?
Is AUDIO MOD
Yes
No
Is there
Yes
No
SYNTHESIZER DEVIATION
SYNTHESIZER PENDULUM
Start
Is 2.1 MHzReplace R5731.
Check C5733and R5715.
Replace U5702.
Replace L5700.
Check L5704.
Replace U5703.
Replace U5700.
Is 16.8 MHz
Is 5V presentat U5700-13?
Is 5V presentat L5700?
Is 5V presentat U5703-2?
Is 9.3Vpresent
at U5703-1?
Is 16.8MHzpresent
at U5700-10?
at R5731?present
at U5700-10?present
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
No
No
at C5700?present
September, 2000 6880906Z19-O 9-5
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Troubleshooting
Troubleshooting Charts
Troubleshooting Flow Chartfor Synthesizer (cont.)
NO Tx INJECTION
Start
Is 5V presentat Q5707-C?
Check Q5707
Is 2.1 MHzpresent
at R5731?
DC circuit.
Check Q5701 andQ5705 DC circuits.
Check RF path line-up.
9-6 6880906Z19-O September, 2000
Troubleshooting GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Troubleshooting Charts
Troubleshooting Flow Chartfor 12 W Power Amplifier
START
NoNo
NoNo
NoNo
YesYes
YesYes
YesYes
Is PA control
Is Red light on?
Is control head
Is K9.1 OK?
Go to
Go to
Go to controller
Is there
Faulty power setting DAC
Faulty coupler.
Is Check R6519, U701,
Is Faulty current sense
Is
Faulty integrator.
Faulty REF voltage.
IsIs RF at
Are voltages
Is RF
Is RF after
Is RF after
Replace Antenna
Check CR6501, Q6506,
Check U6502, R6520,
Replace U6501.
Check CR6502, CR6503,
Check L6513, L6513,
Is there 5V atGo to synthesizer
PA RF SECTION FAULT PA LOGIC SECTION FAULT
RF Levels were measured with an
RF probe in series with 0.5pF
Is TX_INJ Go to controller
*U6501 DC voltages:
Pin 2: 9.1V (during Tx only)Pins 3 and 4: A+-0.1V
No
No
No
No
No
NoNo
NoNo
No No
No
Yes
Yes
Yes
Yes
YesYes
YesYes
Yes
Yes
Yes
Yes
OK?control headtroubleshooting.
5V at Is there
K9.1 ENB? troubleshooting.
9.3V at Q741or Q742?
ReplaceQ741 and Q742.
synthesizertroubleshooting.troubleshooting.PA_ENABLE?
(PA_PWR_SET)at U702-2 there ~2V
or software
Is there ~ 0V atU701-7?
Check CR6509, R6515,CR6506, R6514, L6516,R6512.
L6515, R725, R721,R722, R723.
mechanism. CheckR6520, U701 DAC(U702-11).
Check R251, R252,U251.
Replace U701.connector.
Harmonic Filterat ~23dBm?C6543.
CR6504, R6538, R6539,R6537.
L6519, L6504 ,L6505,L6506,VR6501.
Q6501, L6503, L6502.
troubleshooting.
U6501~2dBm?
>2dBm?
at ~0V?
at U6501*OK?
output ~24dBm? at U6501
Tx switchat ~24dBm?
?
U701-14at <4.5V?
U701-1at <4.5V?
U701-10~4.6V?
capacitor.
September, 2000 6880906Z19-O 9-7
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Troubleshooting
Troubleshooting Charts
Troubleshooting Flow Chartfor 30W Power Amplifier
START
NoNo
NoNo
NoNo
YesYes
YesYes
YesYes
Is PA control
Is Red light on?
Is control head
Is K9.1 OK?
Go to
Go to
Go to controller
Is there
Faulty power setting DAC
Faulty coupler.
Is Check R6519, U701,
Is Faulty current sense
Is
Faulty integrator.
Faulty REF voltage.
IsIs RF at
Are voltages
Is RF
Is RF after
Is RF after
Replace Antenna
Check CR6501, Q6506,
Check U6502, R6520,
Replace U6501.
Check C6555, CR6502,
Check H6502, L2,L3,L4.
Is there 5V atGo to synthesizer
PA RF SECTION FAULT PA LOGIC SECTION FAULT
RF Levels were measured with an
RF probe in series with 0.5pF
Is TX_INJ Go to controller
*U6501 DC voltages:
Pin 2: 9.1V (during Tx only)Pins 3 and 4: A+-0.1V
No
No
No
No
No
NoNo
NoNo
No No
No
Yes
Yes
Yes
Yes
YesYes
YesYes
Yes
Yes
Yes
Yes
OK?control headtroubleshooting.
5V at Is there
K9.1 ENB? troubleshooting.
9.3V at Q741or Q742?
ReplaceQ741 and Q742.
synthesizertroubleshooting.troubleshooting.PA_ENABLE?
(PA_PWR_SET)at U702-2 there ~2V
or software
Is there ~ 0V atU701-7?
Check CR6509, R6515,CR6506, R6514, L6516,R6512.
L6515, R725, R721,R722, R723.
mechanism. CheckR6520, U701 DAC(U702-11).
Check R251, R252,U251.
Replace U701.connector.
Harmonic Filterat ~29dBm?
CR6503, Q6505.
L6519, L6504 ,L6505,L6506,VR6501.
Q6501, L6503, L6502.
troubleshooting.
U6501~2dBm?
>2dBm?
at ~0V?
at U6501*OK?
output ~24dBm? at U6501
Tx switchat ~24dBm?
?
U701-14at <4.5V?
U701-1at <4.5V?
U701-10~4.6V?
capacitor.
9-8 6880906Z19-O September, 2000
Troubleshooting GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Troubleshooting Charts
Troubleshooting Flow Chartfor Controller
Start
Apply power to radio and
Was good or bad power-on
Yes
End
Was good power-on beep
Are alert tonesenabled with RSS?
Use RSS to enable tones.
Was good power-on beep present?
Main radio board must bereplaced.
Are tones presenton power up atU202, pin 8?
Audio problem. Trouble-shoot audio circuitry.
With power connected to radio and the radio turnedon, 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 checkC202 for 2.1 MHz signal.4) Check for typical voltages of U101 and U201.
beep present?
turn on.
present?
Done
Done
Done
Yes
Yes
Yes
Yes
No/Don’tknow
No
No
No
Are alert tonesenabled with RSS?
RIB/radioconnections OK?
Yes
No
No
Yes
Reprogram radio withRSS. Apply power toradio and turn on.
Check radio con-nection to RIB andcomputer.
September, 2000 6880906Z19-O 9-9
GTX LTR/Privacy Plus 900 MHz Mobile Service Manual Troubleshooting
Troubleshooting Charts
Troubleshooting Flow Chartfor Control Head
Start
Check controller.
Check LCD, U932,Q953, and ZEBRAconnectors.
Check U941,Q942-4,D942-4.
Check R915-922,R955, and R958.
Do the LEDslight?
Check U942, and U970.
Is backlight OK?
Is volume OK?
Check U941, Q951,Q952,D951-D970.
Is keypadOK?
Is the displayon?
Is SPIcommunication
OK?
End
Yes
NoYes
Yes
Yes
No
Yes
Yes
No
No
No
No
9-10 6880906Z19-O September, 2000
Troubleshooting GTX LTR/Privacy Plus 900 MHz Mobile Service Manual
Troubleshooting Charts
September, 2000 6880906Z19-O 1
DET_AUDIOK9.1
LO_INJPA_K9.1
RF_REG_5VRSSI
RX_IN
PA
PA_CNTR
RXSYNTH
TEMP
VAG
2.1MHZ9V3
K9.1LO_INJ
MOD_IN
PEND_SELRF_REG_5V
SPI_CLKSPI_DATA
SYNT_LOCKSYNT_SEL
TX_INJ
9V3
ADAPT
ADAPT
DAC_CE
DET_AUDIO
FLT_A+
FRACN_CE
K9V1_ENABLE
LOCK_DET
MOD_IN
PA_ENABLE
PEND_CE
RSSI
SPI_CLCK_SRC
SPI_CLK
SPI_DATA
SPI_DATA_SRC
SW_B+
SW_B+
TEMP
VAG
VFORWARD
CURRENT_SENSE+
CURRENT_SENSE-
FLT_A+K9.1
PA_CNTRL
PA_K9.1
PA_TEMP
RX_IN
TX_INJVFORWARD
CONTROLLER
2_1MHZ
9V3
9V3
CURRENT_SENSE+
CURRENT_SENSE-
DAC_CE
K9.1
K9.1_ENABLE
PA_CNTRL
PA_ENABLE
PA_TEMP
SPI_CLCK_SRC
SPI_DATA_SRC
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,
Radio Block Diagram Section
2 6880906Z19-O September, 2000
9V3
MIXER SHIELD
45.1MHz 45.1MHz
LNA SHIELD
IF AMP SHIELD
R5241
0
0
0NU
R5326
R5327
0NU
K9.1
R5328
SH5203SHIELD
9V3
R5240
100
5R
SH5202SHIELD
R5230
47K
K9.1
RF_REG_5V
Q5230
SH5201SHIELD
R532210
R5325
390
1500PF
C5224
5.6KR5212
R5324
390
3.9PFC5214
FL5201
GND
2
IN1
OUT3
C520022PF
455KHz
L5401
C540427PF
0.47M
R540151
SQ_RECT_IN
16
SQ
_TA
IL_T
C
27T_R
L54020.47M
OSC_FB
10OSC_OUT
6PREAMP_IN
5PREAMP_OUT
19
RIP
PLE
_FIL
T
RSSI_BYP25
11RSSI_OUT
24
SQ
_LIM
_IN
23SQ_LIM_OUT
30SQ_NOISE
15SQ_OUT
20
31
DE
MO
D_O
UT
14DRIVE
GN
D
1 26
ICO
_TU
NE
3
IF_A
MP
_IN
36
IF_A
MP
_OU
T
35
LIM
_IN
7LO_IN
8MIXER_IN
4
MIX
ER
_OU
T
9
5V_R
EG
12
5V_R
EG
1
17
5V_R
EG
2
34
5V_R
EG
3
22ADAPT
29
AU
DIO
_IN
28AUDIO_OUT
13B+
CHAN_DET18
33
DE
MO
DE
_FIL
T
32
DE
MO
D_F
ILT
GN
D3
5
IF2
LO6
RF3
IFIC
U5201
21
2.5V
_RE
G
2
MIXER
U5211
GN
D1
1
GN
D2
4
C5326
5R
5R
39PFC5321
0.01UF
RF_REG_5V
K9.1
RF_REG_5V
RF_REG_5V
3PF
C5202
15PF
L5201
1200NHC5201
FL5202
455KHz
2
GND
1IN
3OUT
7.5KR5223
39PFC5236
39PF
C5235
39PFC5233
39PFC5237C5229
39PF
C5239
13KR5224
39PF
130KR5221
.039UFC5226
C5251
3.3UFC5225
C5227
10UF
C5231
4.7UF
Y5201
GND
IN OUT
0.47UF
938MHz
CASE
IN OUTQ5301
FL5203
938MHz
CASE
IN OUT
FL5204
C5213
13PFC5212
36PF
820R5211
16PFC5211
1200NHL5211
L5322
0.1UF
C5208
C5207
68NH
.00
R5207
L52031.0UH
0NU
R5231
0
.00HL5202C5206
20PF
.00
R5204
100
C5205
R52052K
33K
R5202
0.1UF
R5203
6.8K
0.1UF
C5223
0.1UF
C5234
C5203
0.1UF
C5252
C5204
0.1UF
13K
C52280.1UF
1
3
2
R5201
D5303
1
3
2
D5201
R5323
3pF
C5312
300
6.8nL5302
150R5306
13KR5312
13KR5311
220R5302
C5322220
R5321
39PFC5310
39PF
0.01UFC5311
0.01UFC5325
0.01UFC5324
L53210.01UFC5323
C5308
4.2NH
44.6450M
6.8pF
Q5201
Y5211
Y5202
GND
IN OUT
9V3
RF_REG_5V
K9.1
LO_INJ
RX_IN ADAPT
DET_AUDIO
RSSI
PA_K9.1
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,Receiver Section
September, 2000 6880906Z19-O 3
5V SQ WAVE (1.05MHz)
12-13.5V DC
MIMIC LINE UP SWITCH VCO
NUNU
22
24 SS
13VDD
VD
D14
12V_OPT
11V_REG
26 YSSD|YSSA
1N
.C.
3N
.C.
4N
.C.
5N.C.6N.C.
15N
.C.
16N
.C.
17N
.C.
18N
.C.
21 S0
25 S1
SCK
98DET
10F_OUT
N.C
.2
19N
.C.
20N
.C.
27 N.C.28 N.C.29 N.C.
30N
.C.
31N
.C.
32N
.C.
PENDULLUMU5700
23 CE
7C_EXT
DE
C573422NF
R5715
C575239PF
C5753
2.2K
C575139PF
L57001.0UH
33NFC573522NF
C5733
22NF
4.7uF
200K
C57170.1UF
R5709200K
C5720
R5700
2.2K
R5708
R57073.3K
C573222NF
C571210UF
20P
RE
IN
17S
UP
FC
AP
18S
UP
FO
UT
19S
UP
IN
24T
ES
T1
25TEST2
32VCP10
VMULT1
9VMULT2
16WARP
14XTAL1
15XTAL2
26CPB|AS2
5D
ATA
12DC5V
22D
C5V
123
DC
5V2
3D
C5V
3
11FREFOUT
13GND
21G
ND
1
30GND2
4G
ND
4
31IADAPT
29IOUT
2LO
CK
8M
OD
IN
28MODOUT
9.3V
U5702QFP_FRACTIONAL_N
1A
UX
3
7C
EX
6C
LK
27CPB|AS1
C57210.1UF
C575739PF0.1UF
C5723
39PF
C5756
0.1UFC5803
C5755
39PF
C58020.1UF
CR5700TRIPLE_DIODE
16
39PF
C57540.1UF
C5722
10NFC5744C5747
10NF10NF
0.1UFC5799
0.1UF
C5746
R5717
C5798
2.7K
10NF
C57970.1UF
C5745
C5736
0.1UFC5796
2.4KR5716
1.200N
R573451
C5750
C5749
51
R5736
C570139PF
C5705
5V_REG
5V_REG
5V_REG
0.1UF
5V_REG
9.3V
C574039PF
C57584.7uF 22NF
C571422NF
L5704
1.0UH
C57250.1UF
C5739
U5703
GND
3
I1
O2
C571310UF0.1UF
C572422NF
C5738
560NH
L5709
22NFC5737
GND
5
NC1
4.7UFC5718
U5705
+V
3
AUX_IN4
AUX_OUT2
C576739PF
C576639PF
Q5700
4.7KR5711
39PFC5762
39PF
5V_REG
8V5
8V5
C5761
C57154.7uF
R5738
22
C57260.1UF
22R5737
39PFC5760
150NH
C575939PF
150NH
L5706
GN
D4
INPUT1 OUTPUT 5
8
VC
C
L5705
U5701
2
GN
D
3
GN
D1
4
GN
D2
6
GN
D3
7
R5704
39PFC5706
330
39PFC5707
0.1UFC5702
C570022NF
8V5
SW_RX
SW_TX
SW_RX
SW_TX
L57071.0UH
C57164.7uF0.1UF
C5728
C576539PF22NF
C5741
U57043
+V
4AUX_IN
2AUX_OUT
5
GND
1NC
39PFC5764
C576339PF
C57270.1UF
22NFC5742
39PFC5768
C5773
39PF
39PFC5771
1.5KR5718
R5710
10K
R5728330
39PF
C5772
Q5703
8V5
C5770
39PF
39PFC5708
R5703
Q5702
R574051
10K
51
C5769
R5739
R5731
100
39PF
0.1UFC5729
C5743
U5707M_LIN
GND
IN
OUT
22NF
M_LINU5706
GND
IN
OUT
C5710
100PFC5711
C5709
100PF
34
100PF
25
0.01UF
C5748
C57194.7uF39PF
C5775510
R5727510
R5726R5725510
C577439PF
C5730
R5724510
R5723
0.1UF
L5708
0NU0NU
150NH
Q5705
R5722
C5731
R5721
0.1UF
R5714
0NU
2.7K
270
R57200NU
R5755
22
R575739PF
C581339PF
C5814
R575333
R5754330
2.7K
C581039PF
2.7K
R5750
R5752330
R5751
Q5707
39pFC5811
22R5748
5V_REG
C58060.1UF0.1UF
C5805
C58040.1UF
5V_REG
SHIELD
5V_REG
SHIELDE5703E5700
SHIELDE5701
2.2pF
SHIELDE5702
NC
C5793
NC
NC
NCNC
NC
NC
E5704SHIELD
R5756270
C57902.7pF
CR5702
39PF
1.0UH
L5702
C5795100PF
C5794
C57031.6pF
100PF
C57041.8pF 2.4PF
C5787
180
C5786
Q5704
R5744
2.2pFC5785
2.2pFC5784
R57426.8K
R574310K
1.2pF
C5783
CR5701
3.3pFC5782
1.0UH
L5701
R5735
51
100R5733
2.2pFC5792
100R5732
Q5701
C5779
39PF
R57190NU
4.7KR5713
R574110
R57124.7K
C577839PF
150
R5729
R5702
0NU
0NU
L5703
R5701
10KR5705
1.0UH
510R5706
C5788100PF
180
C5789
2.4PF
R5745
C5776
Q5706
R57476.8K
39PF
R574610K
C5791
1PF
2.1MHZ
LO_INJ
RF_REG_5V
9V3
K9.1
TX_INJ
MOD_IN
SYNT_SEL
SYNT_LOCK
SPI_DATA
SPI_CLK
PEND_SEL
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,
Synthesizer Section
4 6880906Z19-O September, 2000
12pFC6540
ANTENNA CONNECTOR
This inductor (L6520) is to prevent build-upof electro-static charge at the output.
Power Connector
LAMBDA/4 Line
NC
C6545.01uF 0.1uF
C6546
R6530R653139
C6551
.01uF
22
C6522
39pF
7.5pF
C6523
C65521uF
C65660.1uF .01uF
C6548
57R01
39pFC6519
57R01L6508
GN
D
6
RC
VR
5
1RFOUT
3
SW
DC
4 2
VF
RW
D
L6510
07L01H6502100K
R6514
C6555
130pF
C65531uF
C657039pF
1.5K
R6523
1.5K
R6525
2.5nH
L6507
R6506560
R6504560
R6505
10
39pF
C6554
57R01
CR6503
MA4P1250
57R01L6519
2.2pF
L6518
R6528
C6520
560
L65213.85nH
4.2NHL6513
82nH
L6509
3
GN
D1IN
2OUT
R6540
04H03H6501
4
3
1
2
100
R6520
1.639m
1
1.2pFC6502
SHIELDSH6501
R65084.7
R6509
100K
100K
R6532
10pFC6539
12pFC6568
C656712pF
C654210pF
C654110pF
C65632.7pF
Q6505
82nH
L6523
0.1UFC6501
5RF_OUTPUT
L65027.66NH
MHW2821-2U6501
2+DC|BIAS
3+DC|SUP.
4+DC|SUPP.
6
GND
7
GND1
1RF_INPUT
J6501
NC
NC
0.1UFC6549
.022uF
NC
C6507
C6524
C6569
0.1UF
L651468nH
0.1UF
68nH
L6511
VR650112V
AUX_OUT2
GND
5
NC1
R6555
220
1000PF
U6502
+V
3
AUX_IN4
L6512C6525
R6524
23.75NH
1.5K
C6510
0.01UF
68nH
L6516
C653539PF
3.3KR6515
12C6529
39PF CR6509
3
39PFC6534
1000pF .01uFC6564 C6565C6538
C6537
0.1uF
24V39PF
C6571
CR6508
39PF
39PF
L6506
C6518
C6516
0.1UF
C6513
1UF
C6509
L6505
C6512
0.01UF
1UF
C6515
0.1UF
0.01UF
L6504
0.1UF
C6508
C6511
0.1UFC6550
39PF
C6506
39PFC6526
39PFC6505
L6503
Q6501B
B
C C
E E E E
68nH
68nHL6501
MRF8372
C650339PF
10
R6503
2 1
Q6506
10
CR6501
3
560
R6526
R6527
C653339PF
C6532
68nH
L6517
39PF
68nH
L6515
MA4P1250
47KR6519
L6522
CR6502
1UF
C6514
82nH
39PF
C6517
CURRENT_SENSE-
PA_K9.1K9.1
PA_CNTRL
VFORWARDTX_INJ
PA_TEMP
FLT_A+
CURRENT_SENSE+
RX_IN
Schematic Diagram for HLF9003A & HLF9004A Main Boards,Power Amplifier Section
September, 2000 6880906Z19-O 5
R726
10K
39PFC741
C722
C72339PF
C72539PF
39PF
C71339PF
C70239PF
C70139PF
22K
R704
22K
R711
0.1uF
C731
Q742
R743
1K
Q741
0.1uF
C727
22K
R722
LM290213
1214
4
11
U701
2
31
4
11
U701
Q1-OUT4
Q2-OUT11
Q3-OUT13
Q4-OUT
3R1-OUT 5R2-OUT 12R3-OUT 14R4-OUT
16
VDD
7
VSS
LM2902
MC144111U702
10CLOCK
1DIN
15DOUT
6ENABLE_
8NC1
9NC2
2 4.7K
R734
C712
0
0.1uF
560
R705 R712C711
0.1uF
R702
2.4K
6
57
4
11
CR721
108
4
11U701
LM2902LM2902
U701
9
1.5K
C70339PF
R703
R741
22K
R713
510
4.7K
R736
4.7KR737
39PF
100K
R723
C726
5.6KR721
NC
NC
3.3K
R724
NCNC
NCNCNCNC
10KR725
100KR706
R732
4.7K
R714
100
Q731
1.5K
R742
2.2K
R740
10.0KR718
1K
R719
100KR730
R731100K
100K
R729
22KR727
0.1uFC724
R716
R717
10K
10K
.00
C714
R720
R715
1K
R733
10.0K
100K
4.7K
R728
DAC_CE
SPI_CLCK_SRC
SPI_DATA_SRC
K9.1_ENABLE
VAG
PA_TEMP
VFORWARD
9V3
PA_PWR_SET
9V3
9V3 9V3
VAG
K9.1
CURRENT_SENSE+
SW_B+
SW_B+SW_B+
TEMP
PA_CNTRL
CURRENT_SENSE-
SW_B+
SW_B+
PA_ENABLE
Schematic Diagram for HLF9003A & HLF9004A Main Boards,Power Control Section
6 6880906Z19-O September, 2000
(-)
(+)
POWER CONNECTOR
ANTENNA CONNECTOR
This inductor (L6520) is to prevent build-upof electro-static charge at the output.
Microstrip Coupler
LAMBDA/4 Line
LAMBDA/4 Line
Coplanar Match
39PFC6519
J6501
L6519
0.1UFC6549
0.1UFC6550
560R6528
NC
C6536
4 3
1 239pF
R65201.639m
C656230pF
C65603.3pF
C65511.5pF
C6552
NC
NC
NC
1.5pF
NC
0.01UF
C6512
0.1UF
C6509
C6515
1UF
L6504
1KR6505
0.1UF
C6508
0.01UF
1UF
C6514
C6511
39PF
C6517
510R6504
L6516
68nH
R65143.3K
100R6512
3.3K
CR6506
10PF
C6526
R6515
39PF
CR6509
3
12
C6529
CR6504
CR6501
3
2 1
10
R6526
560R6527
C653339PF
L6517
68nH
C653239PF
1
J6502
2
C653739PF
39PF
CR6508
C6518
C6538
L6506
39PF
0.1UF
C6513
1UF
C6516
C6520
L6505
10pF
22
R6506
39PF
22
R6502
39PFC6505
C6506
L6503
68nH
B
B
C C
E E E EL650168nH
Q6501MRF8372
39PFC6503
10
R6503
Q6506
C6542
7.66NH
L6518
R65311.8PF
R6532100 100
1.5K
1.5K
R6523
R6525
R6524
1.5K
0.01UF
C6510
C653539PF
3.3PFC6553
L652082nH
C6527
39PF
47
0.1UFC6501
R6538 R6539
47
47
15pFC6523
R6537
3.9pFC6540
5.6PF
L65027.66NH
C6502
RF_INPUT1
RF_OUTPUT5
C65411.8PF
U6501MHW2821-2
+DC|BIAS2
+DC|SUP.3
+DC|SUPP.4
GND
6
GND1
7
C654539PF
L6515
68nH
C653439PF
R6519
MA4P1250
CR6502
47K
CR6503
MA4P1250
L651168nH
L6507
82nH
0.1UFC6507
C65440.1UF
C65460.1UF
L651468nH
C6543
39PF
68nH
L6509
220
VR650112V
L6513
R6555
22NF
7.66NH
U65023
+V
4AUX_IN
2AUX_OUT
5
GND
1NC
C6524
C6525
1000PF
CURRENT_SENSE+
L6508
23.75NH
CURRENT_SENSE-
FLT_A+
PA_K9.1
K9.1
PA_CNTRL
VFORWARD
TX_INJ
PA_TEMP
RX_IN
Schematic Diagram for HLF9009A & HLF9010A Main Boards,Power Amplifier Section
September, 2000 6880906Z19-O 7
R711
22K
C714
2.2K
R712C711
22NF
39PF
R705
3.3K
22K
R702
200KR706
NCNC
R72510K
R740
2.2K
4.7K
R732
1.5K
R741
R70322K
C731
0.1uF
Q742
C712
0.1uF
Q731
R742
1.5K
100
R714
39PFC703
CR721
U701
6
57
4
11
LM2902
9
108
4
11LM2902
LM2902U701
13
1214
4
11
U701
LM2902
2
31
4
11
R728
U701
3.74K
100KR717
R71810.0K
R731
R719
1K
100K
100K
R729
100K
R730
R743
1K
C727
Q741
0.1uF
R722
22K
39PFC713
C701
39PFC702
22K
39PF
NC
NC
R704
NCNC
NCNC
R7344.7K
4.7K
Q1-OUT2
Q2-OUT4
Q3-OUT11
Q4-OUT13
R1-OUT3
R2-OUT5
R3-OUT12
R4-OUT14
VDD
16
VSS
7
R733
U702MC144111
CLOCK10
DIN1
DOUT15
ENABLE_6
NC18
NC29
R716
3.74K
R715
R72010.0K
1K
510
R713
R736
4.7K R7374.7K
C726
R723
100K
39PF
R7215.6K
R724
3.3K
R72722K0.1uF
C724
10K
R726
C74139PF
39PFC723
C72239PF
SW_B+SW_B+
SW_B+
39PFC725
VFORWARD
VAG
9V39V3
PA_TEMP
SW_B+
SW_B+
VAG
K9.1_ENABLE
9V3
K9.1
PA_PWR_SET
9V3
PA_ENABLE
SPI_DATA_SRC
SPI_CLCK_SRC
DAC_CE
PA_CNTRL
CURRENT_SENSE+
CURRENT_SENSE-TEMP
Schematic Diagram for HLF9009A & HLF9010A Main Boards,Power Control Section
8 6880906Z19-O September, 2000
HEAR_CLEAR
GATED_RX_AUDIO
HOOK_RSS
IGNITION_CONTROLIGNITION_SENSE
INT_SPKR+
INT_SPKR-
K9V1_ENABLE
MIC
PTT
PUBLIC_ADDRESS
RSSI_BUF
RX_AUDIO
SCI_TX
SW_B+
VAG
VPP
TX_IN
USW_+5V_CL
VAG
VPP
AUDIO_PA_&_I/O
+5V
9V3
AUDIO_PA_ENABLE
B+_CONTROL
BUS+
DATA_PTT
EXTERNAL_ALARM
FAST_OFF_IGN
FLAT_RX_AUDIO
FLAT_TX_AUDIO
FLT_A+
ON_OFF_CONTROL
PA_ENABLE
PEND_CE
PTT
PUBLIC_ADDRESS
RESET
RSSI
RSSI_BUF
RX_AUDIO
RX_IN
SCI_TX
SPI_CLCK_SRC
SPI_CLK
SPI_DATA
SPI_DATA_SRC
TEMP
FAST_OFF_IGN
FILTERED_AUDIO
FLAT_RX_AUDIO
FLAT_TX_AUDIOFLT_A+
FRACN_CE
GATED_RX_AUDIO
HIGH_LOW_BAND
HOOK_RSS
IGNITION_SENSE
INT_SPKR+
INT_SPKR-
K9V1_ENABLE
LOCK_DET
MIC
MOD_IN
RX_IN
TX_IN
AUDIO_&_DIGITAL
+5V
2_1MHZ
9V3
ADAPT
ASFIC_MIC_AUD_OUT
AUDIO_PA_ENABLE
B+_CONTROL
BATTERY_VOLTAGE
BUS+
DAC_CE
DATA_PTT
DET_AUDIO
EXP_AUDIO
EXTERNAL_ALARM
9V3B+_CONTROL
BATTERY_VOLTAGE FLT_A+
IGNITION_CONTROL
ON_OFF_CONTROL
RESET
SW_B+
USW_+5V_CL
9V3
ASFIC_MIC_AUD_OUT
DISC
EXP_AUDIO
FILTERED_AUDIO
HC_CNTL
RSSI
SW_B+
SPI_DATA
SPI_CLK
RSSI
PEND_CE
MOD_IN
LOCK_DET
FRACN_CE
FLT_A+
DET_AUDIO
ADAPT
9V3
2_1MHZ
K9V1_ENABLE
TEMP
VAG
SPI_DATA_SRC
SPI_CLCK_SRC
PA_ENABLE
DAC_CE
SUPPLY_VOLTAGE
+5V
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,Controller Block Diagram
September, 2000 6880906Z19-O 9
4
FAST OFF CIRCUIT: POT DETECTOR
J100
+5V
L427
10
VAG
C651
39PF
ANALOG_1
.01uF
L425
C104
R123
NC
NC
NC
10K
10V
VR101
10K
R135
C147.00
C232
+5V
10uF
D101
NC
4
39PF
C242
24PF
6
8
C146
ON_OFF_CONTROL 18
R202
10
10K
LED_CE 12
C209
7
10uF
270nH
L131
6
9V3
47.5K
L419
R2520
9V3
100K
R236
5
2
D200
0.1u
F
C22
5
C22
6
+5V
+5V
.01u
F
33uF
C22
3
C231
.01uF
NC
10K
R203
R100
4.7K
1 2
3
VAG
U106
PTT 4
HANDSET_AUDIO 14
C212
14
0.1uF
C202
39PF
C243
3
470pF
R155
R209
10K
47K
.01uF
R23868K
C111
SPI_DATA_BUF 6
7
NC
NC
+5V
39PFC100
14
L429
100K
R201
3
1
9V3
C114 .01uF
5
29D7
EN_CE30
EN_OE32
EN_WE7
24
GND
6A17
9VPP
8
VCC
2A9
21D0
D122
23D2
25D3
D426
27D5
28D6
10A16
18A2
A317
16A4
15A5
14A6
13A7
3A8
20A0
19A1
A1031
1A11
12A12
4A13
5A14
11A15
AM28F010-120
U102
C106
0.1uF
+5V
10K
NC
R115
C10939pF
+5V
+5V
1
3L4334
C229
.01uF
C228
270nH
L132
.1uF
C253
1uF
47.5K
R251
R116
C102
10K
0.1uF
0.1uF
C101
0.1uF
C254
2
6
0
1
5
15
39PF
C241
7
BUS+
GND
Q101
NC
2
1
3
U251
R231
0NU
200K
R101
C133
FLT_A+
6
0.1uF4
5
47K
U106
R222
47UF
C227
C137
39PF
0NU
11
R134
R121
ANALOG_2
0
4.7K
15
9
L434
R15333K
Q200
L423
39PF
L424
8
7
C646
U106
9
10
R133
39PF
100K
HOOK_RSS 3
C645
TP133
68K
C103
R237
0.1uF
R107 2.2K
NC
+5V
1
R104
47K
100
NC
NC
16
R204
12
14
4.7K
13
7
5
R105
U202
6
C208
NC
330pF
R10810K
C652
39PF
VCC
14
C107
.01uF
GND
7
12
13
11
12Y3
Y411
Y510
Y69
Y77
U106
A01
2A1
3A2
CS16
CS24
5CS3
GND
8
VCC
16
15Y0
Y114
Y213
74HC138A
U105
C134
2
0
+5V
0.1uF
3
1
6
NC
+5V
NC
+5V.01uF C113
39PF
+5V
R12610K
C643
E2XTALOUT
UNATRXOUT
B2
UN
IVIO
UPCLKD1
E7
VA
GC
AP
D8VAGOUT
H8VCOATN
C2
VD
D
C6VOXO
E1XTALIN
RXIN
J3R
XLI
MC
AP
G4RXLIMOUT
H1
SQ
DE
T
H7SQIN
TIM
ING
CA
PH
3
G1TRKCLKIN
C7TXIN
H5
J7PLIN
A4PLLIM
PREMPC8
G7REFATN
J2R
ES
ET
G8RSSI
J4RXAUDOUT
H6
E8LIMIN
C1
LOO
PC
AP
C5
LOW
SP
CA
P B1MDCREF
A6MICAMPOUT
MICINB8
F2PGMENAB
C3PLCLK
G3
GN
D3
D4
GN
D4
E4
GN
D5
F4
GN
D6
D5
GN
D7
GN
D8
E5
F5
GN
D9
A5
LCA
P
B7
GN
DA
GN
DD
D2
D3
GN
D1
GN
D10
G5
E6
GN
D11
F6
GN
D12
G6
GN
D13
F3
GN
D2
A7EXTMICIN
H4EXTVOLIN
GCB0B5
A3GCB1
B4GCB2
B3GCB3
A2GCB4
C4GCB5
BIA
SR
ES
D6
BU
FF
DIS
C
H2
CH
AC
T
F1CLK
F7DACO
E3DATA
DC
AP
B6
DTMFCLKG2
J5EXPAUDIO
U201
35U45
AUXRXINJ6
AUXTXIND7
F8
10uF
C252
4.7K
R112
R122
Q103
47K
C233
33pF
5
R14510K
4
L428
3.3uFC105
L422
10K
R106
0NU
15
R117
16
C649
39PF
2
6
39PF
+5V
C650
39PF
C648
C200
0.1uF
R113
33K
3
TP103
6
7
4
C11039pF
XTA
L74
VD
D31 71
VD
D
VR
H51 50
VR
L
13V
SS
VS
S32
VS
S70
XIRQ30
IN
24P
H2_
PW
3
PH
3_P
W4
IN
25
IN
26P
H4_
CS
IO
IN
27P
H5_
CS
GP
1
IN
28P
H6_
CS
GP
2
IN
29P
H7_
CS
PR
OG
RESET75
VD
D12
PG1_XA1438
PG2_XA15
PG3_XA1637
36PG4_XA17
PG5_XA1835
PG
634
33PG7_R_W
IN
22P
H0_
PW
1
IN
23P
H1_
PW
2
PF1_ADDR158
PF2_ADDR2
PF3_ADDR357
56PF4_ADDR4
PF5_ADDR555
54PF6_ADDR6
53PF7_ADDR7
40PG0_XA13
39
PE1_AN147
PE2_AN2
PE3_AN346
45PE4_AN4
PE5_AN544
43PE6_AN6
42PE7_AN7
60PF0_ADDR0
59
PC7_DATA7
78P
D0_
RxD
PD
1_T
xD79 80
PD
2_M
ISO
1P
D3_
MO
SI
2P
D4_
SC
K
PD5_SS3
49PE0_AN0
48
PB7_ADDR15
62PC0_DATA0
PC1_DATA163
64PC2_DATA2
PC3_DATA365
66PC4_DATA4
67PC5_DATA5
68PC6_DATA6
69
PA7_
PA1_
OC
1
21PB0_ADDR8
PB1_ADDR920
19PB2_ADDR10
18PB3_ADDR11
PB4_ADDR1217
16PB5_ADDR13
15PB6_ADDR14
14
MO
DB
_VS
TB
Y
11PA
0_IC
3
PA1_
IC2
109PA
2_IC
1
8PA
3_IC
4_O
C5
PA4_
OC
4_O
C1
76PA
5_O
C3_
OC
1
5PA
6_O
C2_
OC
1
4
68HC11K1_QFP
41A
VD
D
AV
SS
52
E72
EX
TAL
73
IRQ61
MODA_LIR77
76
68HC11K4_TAU
U101
0NU
R215
R14210K
SPI_CLCK_BUF 5
LCD_CE_BUF 8
MIC 16
.001uF
C108
CR150
Q150
R150
2K
R152
R151
+5V
47K
+5V 9
200K
11
13
12
C136
10
39PF
R208
10K
NC
+5V
D102
4.7K
FLT_A+ 17
R131
C207
NC
0.22uF
7
1uF
C132
11
17
9
80
+5V
10K
R136
1
+5V
5
9V3
R210
1K
NC
NC0
1uF
C22
2
CR151
C211
0.1uF
7
22K
R132
8
L432
1CS_
HOLD_ 7
6SCK
5SI
SO2
VCC
8
VSS
4
WP_ 3U104
EEPROM_X25040
68K
R114
.022uFC210
R22
1
0
7
C22
1 0.
1uF
0
2
R232
4.7u
F
68K
C22
4
R127
C205
4.7K
1 2VDD
5
VSS
3
+5V
0.22uF
1
U203
CNTL
4
6
1
4.7KR111
6
Q102
5
3
GNDIN1
NC 4
NO
6
2
VPOS
19IO8
28
VCC
U204
COM
14
GND
11IO1
12IO2
13IO3
15IO4
16IO5
17IO6
18IO7
A45
A54
A63
A725
A8
A924
20EN_CS
22EN_OE
27EN_WE
A1
21A10
23A11
2A12
26A13
A141
8A2
7A3
6
U103
63A21
10
A09
200K
R102
+5V
39PF
R147
270
11
+5V
C644
U202
9
810
12
VAG
4
4
C203
39PF
4.7uF
C230
Q141
+5V
0.1uF
C131
200K
R103
2
1
3
17
U202
R109270
0.1uF
+5V
13
C151
L430
5
9V3
470
R206
33uH
L200
3
0
10
47.5K
7
R223
L421
L418
.033uF
L420
2
C237
NC
4
+5V
9V3
U202
11
13
1412
4
NC
10K
R233
C647
39PF
R200
10K
270
2
R110
R146
270
7
5
8VCC
4 VEE
L426
MC33072D
U251
6
R205
1K
9
0.1uFC206
INT_SPKR+ 1
ANALOG_3 13
39PF
C201
C204
39PF
0.1uF
C234
3
VAG
L431
C64239PF
2
INT_SPKR- 2
5
5
3
0.1uF
C135
0.1uF
C251
FAST_OFF_IGN
AN_3_OFF
PTT
PUBLIC_ADDRESS
FLT_A+
IGNITION_SENSE
TEMP
LOCK_DET
BATTERY_VOLTAGE
ON_OFF_CONTROL
INT_SPKR-
INT_SPKR+
RESET
SPI_CLK
SPI_CLCK_SRC
VPP
FLAT_RX_AUDIO
HOOK_RSS
FLAT_TX_AUDIO
GATED_RX_AUDIO
FILTERED_AUDIO
EXP_AUDIO
RSSI_BUF
MOD_IN
SPI_DATA_SRC
B+_CONTROL
SCI_TX
LCD_CE
2_1MHZ
RX_IN
MIC
ADAPT
DATA_PTT
RE
SE
T
HIGH_LOW_BAND
HANDSET_AUDIO
EXTERNAL_ALARMDET_AUDIO
SCI_RSS
RSSI
BUS+
USW_+5V_CL
PEND_CE
FRACN_CE
MIC
AUDIO_PA_ENABLE
TX_IN
SQ
DE
T
RX_AUDIO
HANDSET_AUDIO
ASFIC_MIC_AUD_OUT
B+_CONTROL
RSSI
AN_3_OFF
PA_ENABLE
K9V1_ENABLE
VAG
LED_CE
DAC_CE
VPP
+5V
9V3
SPI_DATA
SQDET
LED_CE
LCD_CE
SCI_RSS
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,
Audio & Digital Controller Section
10 6880906Z19-O September, 2000
13
FLT_A+
IGNITION ONE SHOT
FAST OFF CIRCUIT: IGN DETECTOR
SPEAKER
INTERNAL
Standard/Data
JUMPER
Ignition
NC
FLT_A+
INT_SPK+
R451
4.7K
4
1 2
9V3
Q401
SWITCHS401
3
R401
4.7K
FLAT_TX_AUDIO
5
SWB+
J400
9
VR41614V
C415
39PF
VR41514V
100KR417
39PF
C426
R423
VR41233V
4.7K
R4021K
NC
+5V
560
R435
C4602.2UF
C401
0.1UF
10KR467
C42139PF
R431
10K
VR42714V
4.7K
+5V
L406
R440
L415
BLM21A05
4
VAG
FLT_A+
4.7K
EXTERNAL_ALARM/TX_SENSE
6
R433
SCI_DATA_IN
39PFC442
3
R462200K
14V
PTT/DATA_PTT
VR421
C405.001uF
C404
SW_B+
R42810K
47UF
Q450
39PFC410
L411
BLM21A05
560
R424
Q411
39PFC425
.0033uF
C402
NC
R4504.7K
R45210K
C42214V39PF
VR422
NU C403
14VVR426
+5V
VR4305.1V
C427
SW_B+
39PF
R411
D401
8
4
10K
U403
6
57
NC
39pF
C413
R449
L412
33K
EXT_SPKR-1
BLM21A05
NC
100KR420
D402
R40622K
Q410
L409
D403
BLM21A05
VR4255.1V
IGNITION_SENSE10
11
Z112
BLM21A05
L408
1
X4
X02
X13
Y5
Y06
Y110
Z13
Z0
9CNTL
16
VD
D
7
VE
E
8
VS
S
W14
W015
W1
C412
U402
39PF
C414
1000pF
7
200K
R418
7
VC
C
GROUND
2G
ND
15
GN
D2
9INV
8M_SS
1NINV
4OUT1
6OUT2
3RR
U401
R421
560
R460
200K
+5V+5V
EXT_RX_AUDIO11
10K
R426
1M
Q460
U460
67
5
8
4
R463
L414
100
R419
VR431
R405
10K
14V
+5V
C451
C409
39PF
.1uF
R422
R427100K
FLT_A+
4.7K
BLM21A05
L405
L435
.01uFC408
L404
BLM21A05
F401
R44247K
2
500mA63V
PUBLIC_ADDRESS/SPEAKER_MUTE12
EXTERNAL_MIC_AUDIO
C407
+5V
21
3
.01uF
FLT_A+
U460
SCI_DATA_OUT8
C419
47uF
L403
R465
4.7K
BLM21A05
14
10K
R425
HOOK
U403
2
31
8
4
L407
VAG
BLM21A05
9V3
39PFC431
R461
47K
+5V
C416L410
39PF BLM21A05
39PFC423
C411.01uF
R404
10K
5.1VVR410
R412
L416
FLT_A+
4.7K
R4664.7K
BLM21A05
L413
4.7uF
C418
SYS_BUSY/RSSI_BUF
15
33V
R430
+5V
VR441
EXT_SPKR+16
4.7K
R468
10K
5.1VVR451
SW_B+
Q461
.001uF
C406
R464
470K
IGNITION_SENSEVPP
PUBLIC_ADDRESS
INT_SPKR+
INT_SPKR-
RSSI_BUF
HOOK_RSS
MIC
AUDIO_PA_ENABLE
RX_AUDIO
DATA_PTT
BUS+GATED_RX_AUDIO
PTT
EXTERNAL_ALARM
K9V1_ENABLE
FLAT_RX_AUDIO
VAG
SW_B+
9V3
+5V
FLAT_TX_AUDIO
SCI_TX
IGNITION_CONTROL
B+_CONTROL
FAST_OFF_IGN
FLT_A+
Schematic Diagram for HLF9003, HLF9004A,HLF9009A & HLF9010A Main Board,Audio PA & I/O Sections
September, 2000 6880906Z19-O 11
IN8
OUT1
2SENSE
SHDN3
_ERORR5
U631
5V_TAP6
FDBK7
GND4
3
2
1
D611
1K R614
Q601
NC
5.1V
VR621 39PF
C621 C62247uF
R621
2.2K
D6313
2
1
0.1uF C612
C605.1uF
10
R604
R632
6.8K
39PF
3.3K
R617
C601
R605
22K
R603
0
R606
1.2K
5.1VVR641
10uF
C603
10K
R613
R615
TP601
3.3K16.2K
R601
R642
10K
33uF
3
2
1
C632
D621
47.5K
R641
Q611
7.5K
R602
C602.1uF
R631
10
R61610K
C613
39PF
C6410.1uF
C633
R611
.022uF
1.2K
33uF
C604
C635C631.1uF
Q612
.1uF
R612
3.3K
47uF
12 3
4 5
6
C611
U601
SW_B+
FLT_A+
USW_+5V_CL
47uF
C634
RESET
+5V
ON_OFF_CONTROL
B+_CONTROL
IGNITION_CONTROL
9V3
BATTERY_VOLTAGE
Schematic Diagram for HLF9003A, HLF9004A,HLF9009A & HLF9010A Main Boards,
Supply Voltage Section
12 6880906Z19-O September, 2000
R352
1.5K
47.5K0.01UF
R353
0.1UF
C354
100NF
C365
C362
10.0KC3563.3UF
R356
C374
0.01UF
C352470PF470PF
D5
RSSIINF5
VAGA4
VCC
B3
C351
NCB1
B4NC1
E5NC2
D6NC3
E6NC4
NFILINB5
NFILOUTC6
NOISHLD
D4
FFENABE3
FFINE4
FFOUTF4
GND
A3
HCIDSABB6
HIENABC2
ICENABC4
LODSABA5
D2
COMPCAPE1
COMPOUTF3
CPNENABD1
EXPADJB2
EXPBYPC3
EXPINC1
EXPOUTA2
FFCNTL
U35035U50
CBUFIND3
CBUFOUTF2
CFBBYPE2
CLIPREFC5
COMPBYP
3300PF
22K
C364
R351
C300.220UF
C3633300PF
C358
0.33UF
C361
0.1UF
C3673300PF
R350
100K
C353
0.33UF
NC
NC
NC
NC
NC
100K
NC
NC
100K
R357
1K
R354
0.1UF
C360
R355
C357
0.01UF
C355
3.3UF
100NF
TX_IN
RX_IN
RSSI
DISC
FILTERED_AUDIO
ASFIC_MIC_AUD_OUT
HC_CNTL
EXP_AUDIO
9V3
C350
Schematic Diagram for HLF9003, HLF9004A,HLF9009A & HLF9010A Main Board,Hear Clear Section
September, 2000 6880906Z19-O 13
Circuit Board Detailsfor HLF9003A & HLF9004A Main Boards
14 6880906Z19-O September, 2000
Parts List for HLF9003A & HLF9004A Main Boards
Parts ListHLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
capacitor, fixed: uF +/-15%; 50 V:unless otherwise stated
C100 2113740F41 39 pFC101 thru 103 2113743K15 ceramic 0.1C104 2113741F49 0.01C105 2311049A42 tantalum 3.3 ±10%; 6 VC106 2113743K15 ceramic 0.1C107 2113741F49 0.01C108 2113741F25 1000 pFC109, 110 2113740F41 39 pFC111 2113741F49 0.01C113, 114 2113741F49 0.01C131 2113743K15 ceramic 0.1C132 2311049A07 tantalum 1 ±10%; 16 VC133 thru 135 2113743K15 ceramic 0.1C136, 137 2113740F41 39 pFC146 2113740F36 24 pFC151 2113743K15 ceramic 0.1C200 2113743K15 ceramic 0.1C201 2113740F41 39 pFC202 2113741F17 470 pFC203, 204 2113740F41 39 pFC205 2113743F08 ceramic 0.22C206 2113743K15 ceramic 0.1C207 2113743F08 ceramic 0.22C208 2113741F13 330 pFC209 2311049J26 tantalum 10 ±20%; 16 VC210 2113741A53 .022 ±10%C211 2113743A19 0.1 ±10%C212 2113743K15 ceramic 0.1C221 2113743K15 ceramic 0.1C222 2311049A07 tantalum 1 ±10%; 16 VC223 2113741A57 33 nFC224 2311049J11 tantalum 4.7 ±10%; 16 VC225 2113741F49 0.01C226 2113743K15 ceramic 0.1C227 2311049J44 tantalum 47 ±20%; 10 VC228 2311049A01 tantalum 0.1 ±10%; 35 VC229 2113741F49 0.01C230 2311049J11 tantalum 4.7 ±10%; 16 VC231 2113741F49 0.01C232 2311049J26 10C233 2113740F39 33 pFC234 2113743K15 ceramic 0.1C237 2113741A57 .033C241 thru 243 2113740F41 39 pFC251 2113743K15 ceramic 0.1C252 2311049J23 tantalum 10 ±10%; 7 VC253 2311049A07 tantalum 1 ±10%; 16 VC254 2113743K15 ceramic 0.1C300 2113743A23 0.220C350 2113743A19 100 nFC351, 352 2113741F17 470 pFC353 2311049A04 0.33C354 2113741F49 0.01C355, 356 2311049A42 tantalum 3.3 ±10%; 6 VC357 2113741F49 0.01C358 2311049A04 0.33C360, 361 2113743K15 ceramic 0.1C362 2113743A19 100 nFC363, 364 2113741A33 3300 pFC365 2113743K15 ceramic 0.1C367 2113741A33 3300 pFC374 2113741F49 0.01C401 2113743K15 ceramic 0.1C402 2113741F37 3.3 nFC404 2311049J44 tantalum 47 ±20%; 10 VC405, 406 2113741F25 1000 pFC407, 408 2113741F49 0.01C409 2109720D14 ceramic 0.1; low DISTC410 2113740F41 39 pFC411 2113741F49 0.01C412, 413 2113740F41 39 pFC414 2113741F25 1000 pFC415, 416 2113740F41 39 pFC418 2311049J11 tantalum 4.7 ±10%; 16 VC419 2311049J44 47C421 thru 423 2113740F41 39 pFC425 thru 427 2113740F41 39 pFC431 2113740F41 39 pFC442 2113740F41 39 pFC451 2113740F41 39 pFC460 2311049A09 tantalum 2.2 ±10%; 20 V
C601 2113740F41 39 pFC602 2109720D14 ceramic 0.1; low DISTC603 2380090M24 10 ±20%; 50 V SMTC604 2311049J40 tantalum 33 ±20%; 16 VC605 2109720D14 ceramic 0.1; low DISTC611 2311049C05 tantalum 47 ±10%; 16 VC612 2113743K15 ceramic 0.1C613 2113740F41 39 pFC621 2113740F41 39 pFC622 2311049J44 tantalum 47 ±20%; 10 VC631 2109720D14 ceramic 0.1; low DISTC632 2311049J40 tantalum 33 ±20%; 16 VC633 2113743E07 22 nFC634 2311049J44 tantalum 47 ±20%; 10 VC635 2109720D14 ceramic 0.1; low DISTC641 2113743K15 ceramic 0.1C642 thru 652 2113740F41 39 pFC701 thru 703 2113740F41 39 pFC711, 712 2113743K15 ceramic 0.1C713 2113740F41 39 pFC722, 723 2113740F41 39 pFC724 2113743K15 ceramic 0.1C725, 726 2113740F41 39 pFC727 2113743K15 ceramic 0.1C731 2113743K15 ceramic 0.1C741 2113740F41 39 pFC5200 2113740F35 22 pFC5201 2113740F14 3 pFC5202 2113740F31 15 pFC5203, 5204 2113743K15 ceramic 0.1C5205 2113740F34 20 pFC5208 2113743K15 ceramic 0.1C5211 2113740F32 16 pFC5212 2113740F30 13 pFC5213 2113740F40 36 pFC5214 2113740F17 3.9 pFC5223 2113743K15 ceramic 0.1C5224 2113741F29 1500 pFC5225 2311049A11 tantalum 3.3 ±10%; 16 VC5226 2113743K05 ceramic .039C5227 2311049J11 tantalum 4.7 ±10%; 16 VC5228 2113743K15 ceramic 0.1C5229 2113740F41 39 pFC5231 2311049A05 tantalum 0.47 ±10%; 25 VC5233 2113740F41 39 pFC5234 2113743K15 ceramic 0.1C5235 thru 5237 2113740F41 39 pFC5239 2113740F41 39 pFC5251 2311049A57 10C5252 2113743K15 ceramic 0.1C5308 2113740F23 6.8 pFC5310 2113740F41 39 pFC5311 2113741F49 0.01C5312 2113740F14 3 pFC5321, 5322 2113740F41 39 pFC5323 thru 5326 2113741F49 0.01C5404 2113740F37 27 pFC5700 2113743E07 ceramic .022C5701, 5702 2113743K15 ceramic 0.1C5703 2113740F08 1.6 pFC5704 2113740F09 1.8 pFC5705 thru 5708 2113740F41 39 pFC5709 thru 5711 2113740F51 100 pFC5712, 5713 2311049J26 tantalum 10 ±20%; 16 VC5714 thru 5717 2311049J11 tantalum 4.7 ±10%; 16 VC5718 2311049A14 tantalum 4.7 ±10%; 20 VC5719 2311049J11 tantalum 4.7 ±10%; 16 VC5720 thru 5731 2113743K15 ceramic 0.1C5732 thru 5735 2113743E07 ceramic 22 nFC5737 thru 5743 2113743E07 ceramic 22 nFC5744 thru 5747 2109720D01 ceramic 10 nF; low DISTC5748 2113741F49 0.01C5750 2105248W02 1.2 nFC5751 2113741A57 33 nFC5752 thru 5776 2113740F41 39 pFC5778, 5779 2113740F41 39 pFC5782 2113740F15 3.3 pFC5783 2113740F05 1.2 pFC5784, 5785 2113740F11 2.2 pFC5786 2113740F12 2.4 pFC5787, 5788 2113740F51 100 pF side, entryC5789 2113740F12 2.4 pFC5790 2113740F13 2.7 pF
C5791 2113740F03 1 pFC5792, 5793 2113740F11 2.2 pFC5794 2113740F41 39 pFC5795 2113740F51 100 pFC5796 thru 5799 2109720D14 ceramic 0.1; low DISTC5802, 5803 2109720D14 ceramic 0.1; low DISTC5804 thru 5806 2113743K15 ceramic 0.1C5810, 5811 2113740F41 39 pFC5813, 5814 2113740F41 39 pFC6501 2113743K15 ceramic 0.1C6502 2113740F05 1.2 pFC6503 2113740F41 39 pFC6505, 6506 2113740F41 39 pFC6507 2113743K15 ceramic 0.1C6508 thru 6510 2113741F49 0.01C6511 thru 6513 2311049A01 tantalum 0.1 ±10%; 35 VC6514 thru 6516 2311049A08 tantalum 1 ±10%; 35 VC6517 thru 5719 2113740F41 39 pFC6520 2113740F11 2.2 pFC6522 2113740F41 39 pFC6523 2113740F24 7.5 pFC6524 2113743E07 ceramic .022C6525 2113741F25 1000 pFC6526 2113740F41 39 pFC6529 2113740F41 39 pFC6532 thru 6535 2113740F41 39 pFC6537 2113740F41 39 pFC6538 2113741F49 .01C6539 2113742B22 10 pFC6540 2113742B23 12 pFC6541, 6542 2113742B22 10 pFC6545 2113741F49 .01C6546 2311049A01 tantalum 0.1 ±10%; 35 VC6548 2113741F49 .01C6549, 6550 2113743K15 ceramic 0.1C6551 2113741F49 .01C6552, 6553 2311049A08 1C6554 2113740B39 39 pFC6555 2111078B45 130 pFC6563 2111078A15 2.7 pFC6564 2113741F25 1000 pFC6565, 6566 2311049A01 tantalum 0.1 ±10%; 35 VC6567, 6568 2113742B23 12 pFC6569 2113743K15 ceramic 0.1C6570, 6571 2113740F41 39 pF
diode: (see note 1)CR150, 151 4813833C02 dual 70 V common cathodeCR721 4813833C02 dual 70 V common cathodeCR5700 4802233J09 triple SOT 143-RHCR5701, 5702 4862824C01 varactorCR6501 4813833C02 dual 70 V common cathodeCR6502, 6503 4802482J02 pin diode SMDCR6508 4813832B35 transient suppressor SMTCR6509 4805218N57 dual Schottky common cathodeD101, 102 4813833C02 dual 70 V common cathodeD200 4813833C02 dual 70 V common cathodeD401, 402 4880939T01 silicon SMTD403 4813833C02 dual 70 V common cathodeD611 4813833C02 dual 70 V common cathodeD621 4813833C02 dual 70 V common cathodeD631 4813833C02 dual 70 V common cathodeD5201 4880154K03 dual SchottkyD5303 4880154K03 dual Schottky
fuse:F401 6585711L05 63 V, 500 mA SMT
filter:FL5201 9185747L01 455 kHz ceramic filterFL5202 9180098D14 455 kHz ceramic filterFL5203, 5204 9102603S25 938 MHz ceramic filter
hybrid:H6501 0108704H03 matching hybridH6502 5185807L01 harmonic filter hybrid
connector, receptacle:J100 0902636Y01 flexible cable, side entryJ400 2804503J01 accessory 16-pinJ6500 3080562V01 power cableJ6501 0905901V06 antennaJ6502 3080562V01 power cable
coil, rf:L131, 132 2462587Q40 inductor 270 nH 10%
L200 2462587P30 inductor 33 uH 10%L403 thru 413 2402601S05 inductor BLM21A05L414 thru 416 2484657R01 ferrite beadL418 2402601S05 inductor BLM21A05L419 2484657R01 ferrite beadL420 thru 428 2402601S05 inductor BLM21A05L429, 430 2484657R01 ferrite beadL431 thru 434 2402601S05 inductor BLM21A05L435 2484657R01 ferrite bead 5%L5201 2462587M19 inductor 1200 nH 5%, low PROL5203 2462587T30 inductor 1.0 uHL5211 2483411T74 inductor 1.2 mHL5302 2413926E09 inductor 6.8 nH 5%L5321 2460591A01 inductor 4.2 nHL5322 2462587T12 inductor 56 nH 5%, low PROL5401, 5402 2483411T69 inductor 0.47 mHL5700 thru 5704 2462587T30 inductor 1.0 uH 5%, low PROL5705, 5706 2462587T17 inductor 150 nH 5%, low PROL5707 2462587T30 inductor 1.0 uH 5%, low PROL5708 2462587T17 inductor 150 nH 5%, low PROL5709 2462587Q44 inductor 560 nH 10%L6501 2462587T13 inductor 68 nH 5%, low PROL6502 2460591A11 inductor 7.66 nH air woundL6503 2462587T13 inductor 68 nH 5%, low PROL6504 thru 6506 2484657R01 ferrite beadL6507 2484562T01 inductor 2.5 nHL6508 2484657R01 ferrite beadL6509 2460591R53 inductor 82 nHL6510 2484657R01 ferrite beadL6511 2462587T13 inductor 68 nH 5%, low PROL6512 2460591E24 inductor 23.75 nH air woundL6513 2460591A01 inductor 4.2 nHL6514 thru 6517 2462587T13 inductor 68 nH 5%, low PROL6518, 6519 2484657R01 ferrite beadL6521 2409348J03 inductor 3.85 nHL6522, 6523 2460591R53 inductor 82 nH air wound
transistor: (see note 1)Q101 thru 103 4880048M01 NPN DTC144EKQ141 4880048M01 NPN DTC144EKQ150 4882033T01 NPN DTC114YKQ200 4880214G02 NPN MMBT3904Q401 4880214G02 NPN MMBT3904Q410, 411 4880048M01 NPN DTC144EKQ415 4880494U01 PNP DTA144EKAQ450 4880048M01 NPN DTC144EKQ460, 461 4880048M01 NPN DTC144EKQ601 4880214G02 NPN MMBT3904Q611 4805128M27 PNP BSR33Q612 4880214G02 NPN MMBT3904Q731 4880214G02 NPN MMBT3904Q741 4880048M01 NPN DTC144EKQ742 4805128M27 PNP BSR33Q5201 4813827A07 NPN MMBR941T1Q5230 4813824A17 PNP 3906LQ5301 4813827A18 NPN MRF9411LT1Q5700 4880048M01 NPN DTC144EKQ5701 4813824A17 PNP 3906LQ5702 thru 5704 4809527E01 NPN RF NE85663Q5705 4804188K01 NPN RF NE85634Q5706, 5707 4809527E01 NPN RF NE85663Q6501 4813827A26 NPN RF MRF8372Q6505 4880225C20 NPN RF MRF847Q6506 4813824B01 NPN 2222AT1
resistor, fixed: +/-5%; 1/8 W:unless otherwise stated
R100 0662057A65 4.7kR101 thru 103 0662057B05 200kR104 0662057A89 47kR105 0662057A65 4.7kR106 0662057A73 10kR107 0662057A57 2.2kR108 0662057A73 10kR109, 110 0662057A35 270 ohmR111, 112 0662057A65 4.7kR113 0662057A85 33kR114 0662057A93 68kR115, 116 0662057A73 10kR121 0662057A65 4.7kR122 0662057A89 47kR123 0662057A73 10kR126 0662057A73 10kR127 0662057A65 4.7k
R131 0662057A65 4.7kR132 0662057A81 22kR133 0662057A97 100kR135, 136 0662057A73 10kR142 0662057A73 10kR145 0662057A73 10kR146, 147 0662057A35 270R150 0662057A89 47kR151 0662057B05 200kR152 0662057A56 2kR153 0662057A85 33kR155 0662057A89 47kR200 0662057A73 10kR201 0662057A97 100kR202, 203 0662057A73 10kR204 0662057A25 100 ohmR205 0662057A49 1kR206 0662057A41 470 ohmR208, 209 0662057A73 10kR210 0662057A49 1kR221 0662057B47 0 ohmR222 0662057A89 47kR223 0662057R92 47.5k ±1%; 1/10 WR232 0662057A93 68kR233 0662057A73 10kR236 0662057A97 100kR237, 238 0662057A93 68kR251, 252 0662057R92 47.5k ±1%; 1/10 WR350 0662057G13 100kR351 0662057A81 22kR352 0662057R92 47.5kR353 0662057A53 1.5kR354 0662057G13 100kR355 0662057R30 1kR356 0662057R60 10.0kR357 0662057A97 100kR401 0662057A65 4.7kR402 0662057A49 1kR404, 405 0662057A73 10kR406 0662057A81 22kR411 0662057A73 10kR412 0662057A65 4.7kR417 0662057A97 100kR418 0662057B05 200kR419 0662057A25 100 ohmR420 0662057A97 100kR421 0662057A43 560 ohmR422, 423 0662057A65 4.7kR424 0662057A43 560 ohmR425, 426 0662057A73 10kR427 0662057A97 100kR428 0662057A73 10kR430 0662057A65 4.7kR431 0662057A73 10kR433 0662057A65 4.7kR435 0662057A43 560 ohmR440 0662057A65 4.7kR442 0662057A89 47kR449 0662057A85 33kR450, 451 0662057A65 4.7kR452 0662057A73 10kR460 0662057B05 200kR461 0662057A89 47kR462 0662057B05 200kR463 0662057B22 1MR464 0662057B14 470kR465, 466 0662057A65 4.7kR467, 468 0662057A73 10kR601 0662057A73 10kR602 0662057R55 7.50k ±1%; 1/10 WR603 0662057R31 1.21kR604 0662057A69 6.8kR605 0662057A81 22kR606 0662057B47 0 ohmR611 0662057A51 1.2kR612, 613 0662057C87 3.3kR614 0662057A49 1kR615, 616 0662057A73 10kR617 0662057C87 3.3kR621 0662057A57 2.2kR631, 632 0662057A01 10 ohmR641 0662057R92 47.5kR642 0662057R67 16.2k
R702 0662057A58 2.4kR703, 704 0662057A81 22kR705 0662057A43 560 ohmR706 0662057A97 100kR711 0662057A81 22kR712 0662057B47 0 ohmR713 0662057A42 510 ohmR714 0662057A25 100 ohmR715 0662057R30 1k ±1%; 1/10 WR716 thru 718 0662057R60 10.0k ±1%; 1/10 WR719 0662057R30 1k ±1%; 1/10 WR720 0662057R60 10.0k ±1%; 1/10 WR721 0662057A67 5.6kR722 0662057A81 22kR723 0662057A97 100kR724 0662057A61 3.3kR725, 726 0662057A73 10kR727 0662057A81 22kR728 thru 731 0662057G13 100k ±1%R732 thru 734 0662057A65 4.7kR736, 737 0662057A65 4.7kR740 0662057A57 2.2kR741, 742 0662057A53 1.5kR743 0662057A49 1kR5201 0662057A76 13kR5202 0662057A85 33kR5203 0662057A69 6.8kR5204 0662057A25 100R5205 0662057A56 2kR5207 0662057B47 0 ohmR5211 0662057A47 820 ohmR5212 0662057A67 5.6kR5221 0662057B01 130kR5223 0662057A70 7.5kR5224 0662057A76 13kR5230 0662057A89 47kR5240 0683962T49 100 ohmR5241 0662057B47 0 ohmR5302 0662057A33 220 ohmR5306 0662057A29 150 ohmR5311, 5312 0662057A76 13kR5321 0662057A33 220 ohmR5322 0662057A01 10 ohmR5323 0662057A36 300 ohmR5324, 5325 0662057A39 390 ohmR5327 0662057B47 0 ohmR5401 0662057A18 51 ohmR5700 0662057A57 2.2kR5703 0662057A73 10kR5704 0662057A37 330 ohmR5705 0662057A73 10kR5706 0662057A42 510 ohmR5707 0662057A61 3.3kR5708, 5709 0662057B05 200kR5710 0662057A73 10kR5711 thru 5713 0662057A65 4.7kR5714 0662057A59 2.7kR5715 0662057A57 2.2kR5716 0662057A58 2.4kR5717 0662057A59 2.7kR5718 0662057A53 1.5kR5724 thru 5727 0662057A42 510 ohmR5728 0662057A37 330 ohmR5729 0662057A29 150 ohmR5731 thru 5733 0662057A25 100 ohmR5734 thru 5736 0662057A18 51 ohmR5737, 5708 0662057A09 22 ohmR5739, 5740 0662057A18 51 ohmR5741 0662057A01 10 ohmR5742 0662057A69 6.8kR5743 0662057A73 10kR5744, 5745 0662057A31 180 ohmR5746 0662057A73 10kR5747 0662057A69 6.8kR5748 0662057A09 22 ohmR5750, 5751 0662057A59 2.7kR5752 0662057A37 330 ohmR5753 0662057A13 33 ohmR5754 0662057A37 330 ohmR5755 0662057A09 22 ohmR5756, 5757 0662057A35 270 ohmR6503 0662057A01 10 ohmR6504 0662057C69 560 ohm
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9003 & HLF9004 Radio, 900 MHz, 30 W PL-201021-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
R6505 0662057C27 10 ohmR6506 0662057C69 560 ohmR6508 0683962T17 4.7 ohmR6509 0662057G13 100kR6514 0662057G13 100kR6515 0662057A61 3.3kR6519 0680361L01 therm 47kR6520 1705603W01 shunt, 1.639 mHR6523 thru 6525 0662057A53 1.5kR6526 0662057A01 10R6527, 6528 0662057A43 560R6530 0662057A15 39R6531 0662057A09 22R6532 0662057G13 100kR6540 0680195M25 100R6555 0662057A33 220
switch:S401 4085797L01 2-position
shield:E5700 2602660J02 MMIC shieldE5701 2604668E02 VCO shieldE5702, 5703 2602660J02 buffer shieldE5704 2680524L01 synthesizer shieldSH5201 2605261V01 LNA shieldSH5202, 5203 2605417V01 mixer shieldSH6501 2680567V01 RF power module shield
integrated circuit: (see note 1)U101 5180421V01 MC68HC11K1U102 5108444S61 FLASH memoryU103 5185963A21 SRAMU104 5108444S49 EEPROMU105 5113805A30 1 of 8 DCD/demux 74HC138U106 5113808A07 AND quad 2 INP MC74AC08DU201 5105835U45 ASFICU202 5113819A04 quad op-ampU203 5109522E13 switch SPDTU204 5109781E79 switch SDTU251 5113818A03 dual op-ampU350 5105835U50 hear clear ICU401 5109699X01 audio PAU402 5180173M02 switch SPDTU403 5113818A10 dual op-ampU460 5113818A03 dual op-ampU601 5105625U25 9.3 V regulator LM2941U631 5105469E65 voltage regulator LP2951ACU701 5113819A02 quad op-ampU702 5113811G02 D/A converter 6-bit 4-ch. with SPIU5201 5180207R01 IFICU5211 5185670L01 mixer DBL balancedU5700 5105279V31 16.8 MHz ref. oscillator modeU5701 5105109Z59 MMICU5702 5105457W46 frac-N syntheizerU5703 5113816A07 regulator 5 V 500 mA MC78M05BDTU5704, 5705 4805921T02 switch FMC2U5706, 5707 4804122K04 microstrip line resonatorU6501 5113829D23 890-950 MHz, 18 W, 12.5 VU6502 4805921T02 switch FMC2
Zener diode: (see note 1)VR101 4813830A23 10 V 5%; 225 mW MMBZ5240BLVR410 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR412 4813830A40 33 V 5%; 225 mW MMBZ5257BVR415, 416 4813830A27 14 V 5%; 225 mW MMBZ5244LVR421, 422 4813830A27 14 V 5%; 225 mW MMBZ5244LVR425 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR426, 427 4813830A27 14 V 5%; 225 mW MMBZ5244BVR430 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR431 4813830A27 14 V 5%; 225 mW MMBZ5244LVR441 4813830A40 33 V 5%; 225 MMBZ5257BVR451 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR621 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR641 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR650 14813830A25 12 V 5%; 225 mW MMBZ5242B
crystal: (see note 2)Y5201 9102651Y01 filter 45.1 MHzY5202 9102651Y02 filter 45.1 MHz
notes:1. For optimum performance, diodes, transistors and integrated circuits mustbe ordered by MOTOROLA part numbers.2. When ordering quartz crystal units or ceramic resonators, specify carrierfrequency, crystal (or resonator) frequency, and crystal (or resonator) typenumber.
Y5211 4802653Y01 resonator 44.6450 MHz
September, 2000 6880906Z19-O 15
Circuit Board Detailsfor HLF9009A & HLF9010A Main Boards
16 6880906Z19-O September, 2000
Parts List for HLF9009A & HLF9010A Main Boards
Parts ListHLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
HLF9009A & HLF9010A Radio, 900 MHz, 12 W PL-201022-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
capacitor, fixed: uF +/-15%; 50 V:unless otherwise stated
C100 2113740F41 39 pFC101 thru 103 2113743K15 ceramic 0.1C104 2113741F49 0.01C105 2311049A42 tantalum 3.3 ±10%; 6 VC106 2113743K15 ceramic 0.1C107 2113741F49 0.01C108 2113741F25 1000 pFC109, 110 2113740F41 39 pFC111 2113741F49 0.01C113, 114 2113741F49 0.01C131 2113743K15 0.1C132 2311049A07 tantalum 1 ±10%; 16 VC133 thru 135 2113743K15 ceramic 0.1C136, 137 2113740F41 39 pFC146 2113740F36 24 pFC151 2113743K15 ceramic 0.1C200 2113743K15 0.1C201 2113740F41 39 pFC202 2113741F17 470 pFC203, 204 2113740F41 39 pFC205 2113743F08 ceramic 0.22C206 2113743K15 ceramic 0.1C207 2113743F08 ceramic 0.22C208 2113741F13 330 pFC209 2311049J26 tantalum 10 ±20%; 16 VC210 2113741A53 .022 ±10%C211, 212 2113743A19 0.1 ±10%C221 2113743K15 ceramic 0.1C222 2311049A07 tantalum 1 ±10%; 16 VC223 2113741A57 33 nFC224 2311049J11 tantalum 4.7 ±20%; 10 VC225 2113741F49 0.01C226 2113743K15 ceramic 0.1C227 2311049J44 tantalum 47 ±20%; 10VC228 2311049A01 tantalum 0.1 ±10%; 35 VC229 2113741F49 0.01C230 2311049J11 tantalum 4.7 ±10%; 16 VC231 2113741F49 0.01C232 2311049J26 10C233 2113740F39 33 pFC234 2113743K15 ceramic 0.1C237 2113741A57 .033C241 thru 243 2113740F41 39 pFC251 2113743K15 ceramic 0.1C252 2311049J23 tantalum 10 ±10%; 7 VC253 2311049A07 tantalum 1 ±10%; 16 VC254 2113743K15 ceramic 0.1C300 2113743A23 0.220C350 2113743A19 100 nFC351, 352 2113741F17 470 pFC353 2311049A04 0.33C354 2113741F49 0.01C355, 356 2311049A42 3.3C357 2113741F49 0.01C358 2311049A04 0.33C360, 361 2113743K15 ceramic 0.1C362 2113743A19 100 nF ±10%C363, 364 2113741A33 3300 pFC365 2113743K15 ceramic 0.1C367 2113741A33 3300 pFC374 2113741F49 0.01C401 2113743K15 ceramic 0.1C402 2113741F37 3.3 nFC404 2311049J44 tantalum 47 ±20%; 10 VC405, 406 2113741F25 1000 pFC407, 408 2113741F49 0.01C409 2109720D14 ceramic 0.1; low DISTC410 2113740F41 39 pFC411 2113741F49 0.01C412, 413 2113740F41 39 pFC414 2113741F25 1000 pFC415, 416 2113740F41 39 pFC418 2311049J11 tantalum 4.7 ±10%; 16 VC419 2311049J44 tantalum 47 ±20%; 10 VC421 thru 423 2113740F41 39 pFC425 thru 427 2113740F41 39 pFC431 2113740F41 39 pFC442 2113740F41 39 pFC451 2113740F41 39 pFC460 2311049A09 tantalum 2.2 ±10%; 20 VC601 2113740F41 39 pF
C602 2109720D14 ceramic 0.1; low DISTC603 2380090M24 10 ±20%; 50 V SMTC604 2311049J40 tantalum 33 ±20%; 16 VC605 2109720D14 ceramic 0.1; low DISTC611 2311049C05 tantalum 47 ±10%; 16 VC612 2113743K15 ceramic 0.1C613 2113740F41 39 pFC621 2113740F41 39 pFC622 2311049J44 tantalum 47 ±10%; 16 VC631 2109720D14 ceramic 0.1C632 2311049J40 tantalum 33 ±20%; 16 VC633 2113743E07 22 nFC634 2311049J44 tantalum 47 ±20%; 16 VC635 2109720D14 ceramic 0.1C641 2113743K15 ceramic 0.1C642 thru 652 2113740F41 39 pFC701 thru 703 2113740F41 39 pFC711 2113743E07 22 nFC712 2113743K15 ceramic 0.1C713, 714 2113740F41 39 pFC722, 723 2113740F41 39 pFC724 2113743K15 ceramic 0.1C725, 726 2113740F41 39 pFC727 2113743K15 ceramic 0.1C731 2113743K15 ceramic 0.1C741 2113740F41 39 pFC5200 2113740F35 22 pFC5201 2113740F14 3 pFC5202 2113740F31 15 pFC5203, 5204 2113743K15 ceramic 0.1C5205 2113740F34 20 pFC5208 2113743K15 ceramic 0.1C5211 2113740F32 16 pFC5212 2113740F30 13 pFC5213 2113740F40 36 pFC5214 2113740F17 3.9 pFC5223 2113743K15 ceramic 0.1C5224 2113741F29 1500 pFC5225 2311049A11 tantalum 3.3 ±10%; 16 VC5226 2113743K05 .039C5227 2311049J11 tantalum 4.7 ±10%; 16 VC5228 2113743K15 ceramic 0.1C5229 2113740F41 39 pFC5231 2311049A05 tantalum 0.47 ±10%; 25 VC5233 2113740F41 39 pFC5234 2113743K15 ceramic 0.1C5235 thru 5237 2113740F41 39 pFC5239 2113740F41 39 pFC5251 2311049A57 10C5252 2113743K15 ceramic 0.1C5308 2113740F23 6.8 pFC5310 2113740F41 39 pFC5311 2113741F49 0.01C5312 2113740F14 3 pFC5321, 5322 2113740F41 39 pFC5323 thru 5326 2113741F49 0.01C5404 2113740F37 27 pFC5700 2113743E07 ceramic .022C5701, 5702 2113743K15 ceramic 0.1C5703 2113740F08 1.6 pFC5704 2113740F09 1.8 pFC5705 thru 5708 2113740F41 39 pFC5709 thru 5711 2113740F51 100 pFC5712, 5713 2311049J26 tantalum 10 ±20%; 16 VC5714 thru 5717 2311049J11 tantalum 4.7 ±10%; 16 VC5718 thru 5731 2311049A14 tantalum 4.7 ±10%; 20 VC5732 thru 5735 2113743E07 ceramic 22 nFC5737 thru 5743 2113743E07 ceramic 22 nFC5744 thru 5747 2109720D01 ceramic 10 nF; low DISTC5748 2113741F49 0.01C5750 2105248W02 1.2 nFC5751 2113741A57 33 nFC5752 thru 5779 2113740F41 39 pFC5782 2113740F15 3.3 pFC5783 2113740F05 1.2 pFC5784, 5885 2113740F11 2.2 pFC5786 2113740F12 2.4 pFC5787, 5788 2113740F51 100 pFC5789 2113740F12 2.4 pFC5790 2113740F13 2.7 pFC5791 2113740F03 1 pFC5792, 5793 2113740F11 2.2 pFC5794 2113740F41 39 pF
C5795 2113740F51 100 pFC5796 thru 5799 2109720D14 ceramic 0.1; low DISTC5802, 5803 2109720D14 ceramic 0.1; low DISTC5804 thru 5806 2113743K15 0.1C5810, 5811 2113740F41 39 pFC5813, 5814 2113740F41 39 pFC6501 2113743K15 ceramic 0.1C6502 2113740F21 5.6 pFC6503 2113740F41 39 pFC6505, 6506 2113740F41 39 pFC6507 2113743K15 ceramic 0.1C6508 thru 6510 2113741F49 0.01C6511 thru 6513 2311049A01 tantalum 0.1 ±10%; 35 VC6514 thru 6516 2311049A08 tantalum 1 ±10%; 35 VC6517 thru 6519 2113740F41 39 pFC6520 2113740F27 10 pFC6523 2113740F31 15 pFC6524 2113743E07 ceramic 22 nFC6525 2113741F25 1000 pFC6526 2113740F27 10 pFC6527 2113740F41 39 pFC6529 2113740F41 39 pFC6532 thru 6538 2113740F41 39 pFC6540 2111078A19 3.9 pFC6541, 6542 2111078A09 1.8 pFC6543 2113742B29 39 pFC6544 2113743K15 ceramic 0.1C6545 2113740F41 39 pFC6546 2113743K15 ceramic 0.1C6549, 6550 2113743K15 ceramic 0.1C6551, 6552 2111078A06 1.5 pFC6553 2111078A17 3.3 pFC6560 2113740F15 3.3 pFC6562 2113740F38 30 pF
diode: (see note 1)CR150, 151 4813833C02 dual 70 V common cathodeCR721 4813833C02 dual 70 V common cathodeCR5700 4802233J09 triple SOT 143-RHCR5701, 5702 4862824C01 varactorCR6501 4813833C02 dual 70 V common cathodeCR6502, 6503 4802482J02 pin diode SMDCR6504 4805129M96 dualCR6506 4805218N57 dualCR6508 4813832B35 transient suppressor SMTCR6509 4805218N57 dualD101, 102 4813833C02 dual 70 V common cathodeD200 4813833C02 dual 70 V common cathodeD401, 402 4880939T01 silicon SMTD403 4813833C02 dual 70 V common cathodeD611 4813833C02 dual 70 V common cathodeD621 4813833C02 dual 70 V common cathodeD631 4813833C02 dual 70 V common cathodeD5201 4880154K03 dual SchottkyD5303 4880154K03 dual Schottky
fuse:F401 6585711L05 6.3 V, 500 mA SMT
filter:FL5201 9185747L01 455 kHz ceramic filterFL5202 9180098D14 455 kHz ceramic filterFL5203, 5204 9102603S25 938 MHz ceramic filter
connector, receptacle:J100 0902636Y01 flexible cable, side entryJ400 2804503J01 accessory 16-pinJ6501 0905901V06 antennaJ6502 0905902V04 connector power
coil, rf:L131, 132 2462587Q40 inductor, 270 nHL200 2462587P30 inductor, 33 uH 10%L403 thru 413 2402601S05 inductor BLM21A05L414 thru 416 2484657R01 ferrite beadL418 2402601S05 inductor BLM21A05L419 2484657R01 ferrite beadL420 thru 428 2402601S05 inductor BLM21A05L429, 430 2484657R01 ferrite beadL431 thru 434 2402601S05 inductor BLM21A05L435 2484657R01 ferrite bead 5%L5201 2462587M19 inductor, 1200 nH 5%, low PROL5203 2462587T30 inductor, 1.0 uH 5%, low PRO
L5211 2483411T74 inductor, 1.2 mH 5%, low PROL5302 2413926E09 inductor, 6.8 nH 5%, low PROL5321 2460591A01 inductor, 4.2 nH 5%, low PROL5322 2462587T12 inductor, 56 nH 5%, low PROL5401, 5402 2483411T69 inductor, 0.47 mH 5%, low PROL5700 thru 5704 2462587T30 inductor, 1.0 uH 5%, low PROL5705, 5706 2462587T17 inductor, 150 nH 5%, low PROL5707 2462587T30 inductor, 1.0 uH 5%, low PROL5708 2462587T17 inductor, 150 nH 5%, low PROL5709 2462587Q44 inductor, 560 nH 10%L6501 2462587T13 inductor, 68 nH 5%, low PROL6502 2460591A11 inductor, 7.66 nH air woundL6503 2462587T13 inductor, 68 nH, 5%, low PROL6504 thru 6506 2484657R01 ferrite beadL6507 2460591R53 inductor, 82 nHL6508 2460591E24 inductor, 23.75 nH air woundL6509 2462587T13 inductor, 68 nH 5%, low PROL6511 2462587T13 inductor, 68 nH 5%, low PROL6513 2460591A11 inductor, 7.66 nH air woundL6514 thru 6517 2462587T13 inductor, 68 nH 5%, low PROL6518 2460591A11 inductor, 7.66 nH air woundL6519 2484657R01 ferrite beadL6520 2460591R53 inductor, 82 nH
transistor: (see note 1)Q101 thru 103 4880048M01 NPN DTC144EKQ141 4880048M01 NPN DTC144EKAQ150 4882033T01 NPN DTC114YKQ200 4880214G02 NPN MMBT3904Q401 4880214G02 NPN MMBT3904Q410 4880048M01 NPN DTC144EKAQ411 4880052M01 NPN RXT_A28_T200Q415 4880494U01 PNP DTA144EKAQ450 4880048M01 NPN DTC144EKAQ460, 461 4880048M01 NPN DTC144EKQ601 4880214G02 NPN MMBT3904Q611 4805128M27 PNP BSR33Q612 4880214G02 NPN MMBT3904Q731 4880214G02 NPN MMBT3904Q741 4880048M01 NPN DTC144EKQ742 4805128M27 PNP BSR33Q5201 4813827A07 NPN MMBR941LT1Q5230 4813824A17 PNP 3906LQ5301 4813827A18 NPN MRF9411LT1Q5700 4880048M01 NPN DTC144EKQ5701 4813824A17 PNP 3906LQ5702 thru 5704 4809527E01 NPN RF NE85633-T2B_R25Q5705 4804188K01 NPN RF NE85634Q5706, 5707 4809527E01 NPN RF NE85633-T2B_R25Q6501 4813827A26 NPN RF MRF8372Q6506 4813824B01 NPN 2222AT
resistor, fixed: +/-5%; 1/8 W:unless otherwise stated
R100 0662057A65 4.7kR101 thru 103 0662057B05 200kR104 0662057A89 47kR105 0662057A65 4.7kR106 0662057A73 10kR107 0662057A57 2.2kR108 0662057A73 10kR109, 110 0662057A35 270R111, 112 0662057A65 4.7kR113 0662057A85 33kR114 0662057A93 68kR115, 116 0662057A73 10kR121 0662057A65 4.7kR122 0662057A89 47kR123 0662057A73 10kR126 0662057A73 10kR127 0662057A65 4.7kR131 0662057A65 4.7kR132 0662057A81 22kR133 0662057A97 100kR135, 136 0662057A73 10kR142 0662057A73 10kR145 0662057A73 10kR146, 147 0662057A35 270R150 0662057A89 47kR151 0662057B05 200kR152 0662057A56 2kR153 0662057A85 33kR155 0662057A89 47k
R200 0662057A73 10kR201 0662057A97 100kR202, 203 0662057A73 10kR204 0662057A25 100 ohmR205 0662057A49 1kR206 0662057A41 470 ohmR208, 209 0662057A73 10kR210 0662057A49 1kR221 0662057B47 0 ohmR222 0662057A89 47kR223 0662057R92 47.5k ±1%; 1/10 WR232 0662057A93 68kR233 0662057A73 10kR236 0662057A97 100kR237, 238 0662057A93 68kR251, 252 0662057R92 47.5k ±1%; 1/10 WR350 0662057G13 100kR351 0662057A81 22kR352 0662057R92 47.5kR353 0662057A53 1.5kR354 0662057G13 100kR355 0662057R30 1kR356 0662057R60 10.0kR357 0662057A97 100kR401 0662057A65 4.7kR402 0662057A49 1kR404, 405 0662057A73 10kR406 0662057A81 22kR411 0662057A73 10kR412 0662057A65 4.7kR417 0662057A97 100kR418 0662057B05 200kR419 0662057A25 100 ohmR420 0662057A97 100kR421 0662057A43 560 ohmR422, 423 0662057A65 4.7kR424 0662057A43 560 ohmR425, 426 0662057A73 10kR427 0662057A97 100kR428 0662057A73 10kR430 0662057A65 4.7kR431 0662057A73 10kR433 0662057A65 4.7kR435 0662057A43 560R440 0662057A65 4.7kR442 0662057A89 47kR449 0662057A85 33kR450, 451 0662057A65 4.7kR452 0662057A73 10kR460 0662057B05 200kR461 0662057A89 47kR462 0662057B05 200kR463 0662057B22 1MR464 0662057B14 470kR465, 466 0662057A65 4.7kR467, 468 0662057A73 10kR601 0662057A73 10kR602 0662057R55 7.50k ±1%; 1/10 WR603 0662057R31 1.21k ±1%; 1/10 WR604 0662057A69 6.8kR605 0662057A81 22kR606 0662057B47 0 ohmR611 0662057A51 1.2kR612, 613 0662057C87 3.3kR614 0662057A49 1kR615, 616 0662057A73 10kR617 0662057C87 3.3kR621 0662057A57 2.2kR631, 632 0662057A01 10 ohmR641 0662057R92 47.5kR642 0662057R67 16.2kR702 thru 704 0662057A81 22kR705 0662057A61 3.3kR706 0662057A97 100kR711 0662057A81 22kR712 0662057A57 2.2kR713 0662057A42 510 ohmR714 0662057A25 100 ohmR715 0662057R30 1k ±1%; 1/10 WR716, 717 0662057R45 3.74k ±1%; 1/10 WR718 0662057R60 10k ±1%; 1/10 WR719 0662057R30 1k ±1%; 1/10 WR720 0662057R60 10k ±1%; 1/10 W
R721 0662057A67 5.6kR722 0662057A81 22kR723 0662057A97 100kR724 0662057A61 3.3kR725, 726 0662057A73 10kR727 0662057A81 22kR728 thru 731 0662057G13 100kR732 thru734 0662057A65 4.7kR736, 737 0662057A65 4.7kR740 0662057A57 2.2kR741, 742 0662057A53 1.5kR743 0662057A49 1kR5201 0662057A76 13kR5202 0662057A85 33kR5203 0662057A69 6.8kR5204 0662057A25 100 ohmR5205 0662057A56 2kR5207 0662057B47 0 ohmR5211 0662057A47 820 ohmR5212 0662057A67 5.6kR5221 0662057B01 130kR5223 0662057A70 7.5kR5224 0662057A76 13kR5230 0662057A89 47kR5240 0683962T49 100 ohmR5241 0662057B47 0 ohmR5302 0662057A33 220 ohmR5306 0662057A29 150 ohmR5311, 5312 0662057A76 13kR5321 0662057A33 220 ohmR5322 0662057A01 10 ohmR5323 0662057A36 300 ohmR5324, 5325 0662057A39 390 ohmR5327 0662057B47 0 ohmR5401 0662057A18 51 ohmR5700 0662057A57 2.2kR5703 0662057A73 10kR5704 0662057A37 330ohmR5705 0662057A73 10kR5706 0662057A42 510R5707 0662057A61 3.3kR5708, 5709 0662057B05 200kR5710 0662057A73 10kR5711 thru 5713 0662057A65 4.7kR5714 0662057A59 2.7kR5715 0662057A57 2.2kR5716 0662057A58 2.4kR5717 0662057A59 2.7kR5718 0662057A53 1.5kR5724 thru 5727 0662057A42 510 ohmR5728 0662057A37 330 ohmR5729 0662057A29 150 ohmR5731 thru 5733 0662057A25 100 ohmR5734 thru 5736 0662057A18 51 ohmR5737, 5738 0662057A09 22 ohmR5739, 5740 0662057A18 51 ohmR5741 0662057A01 10 ohmR5742 0662057A69 6.8kR5743 0662057A73 10kR5744, 5745 0662057A31 180R5746 0662057A73 10kR5747 0662057A69 6.8kR5748 0662057A09 22 ohmR5750, 5751 0662057A59 2.7kR5752 0662057A37 330 ohmR5753 0662057A13 33 ohmR5754 0662057A37 330 ohmR5755 0662057A09 22 ohmR5756, 5757 0662057A35 270 ohmR6502 0662057A09 22 ohmR6503 0662057A01 10 ohmR6504 0662057A42 510 ohmR6505 0662057A49 1kR6506 0662057A09 22 ohmR6512 0662057A25 100 ohmR6514, 6515 0662057A61 3.3kR6519 0680361L01 therm 47kR6520 1705603W01 shunt, 1.639 mHR6523 thru 6525 0662057A53 1.5kR6526 0662057A01 10 ohmR6527, 6528 0662057A43 560 ohmR6531, 6532 0662057A25 100 ohmR6537 thru 6539 0662057A17 47 ohm
R6555 0662057A33 220 ohm
switch:S401 4085797L01 2-position
shield:SH5201 2605261V01 LNA shieldSH5202 2605417V01 mixer shieldSH5203 2605417V01 IF amplifier shieldE5700 2602660J02 MMIC shieldE5701 2604668E02 VCO shieldE5702, 5703 2602660J02 buffer shieldE5704 2680524L01 synthesizer shield
integrated circuit: (see note 1)U101 5180421V01 MC68HC11K1U102 5108444S61 FLASH memoryU103 5185963A21 SRAMU104 5108444S49 EEPROMU105 5113805A30 1 of 8 DCD/demux 74HC138AU106 5113808A07 AND quad 2 INP MC74AC08DU201 5105835U45 ASFICU202 5113819A04 quad op-ampU203 5109522E13 switch, SPDTU204 5109781E79 switch, SPDTU251 5113818A03 dual op-ampU350 5105835U50 hear clear ICU401 5109699X01 audio PAU402 5180173M02 switch SPDTU403 5113818A10 dual op-ampU460 5113818A03 dual op-ampU601 5105625U25 9.3 V regulator LM2941U631 5105469E65 voltage regulator LP2951ACU701 5113819A02 quad op-ampU702 5113811G02 D/A converter 6-bit 4-ch. with SPIU5201 5180207R01 IFICU5211 5185670L01 mixer DBL balancedU5700 5105279V31 16.8 MHz ref. oscillatorU5701 5105109Z59 MMICU5702 5105457W46 frac-N sythesizerU5703 5113816A07 regulator 5 V 500 mA MC78M05BDTU5704, 5705 4805921T02 switch FMC2U5706, 5707 4804122K04 microstrip line resonatorU6501 5113829D23 890-950 MHz, 18 W; 12.5 VU6502 4805921T02 switch FMC2
Zener diode: (see note 1)VR101 4813830A23 10 V 5%; 225 mW MMBZ5240BLVR410 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR412 4813830A40 33 V 5%; 225 mW MMBZ5257BVR415, 416 4813830A27 14 V 5%; 225 mW MMBZ5244LVR421, 422 4813830A27 14 V 5%; 225 mW MMBZ5244LVR425 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR426, 427 4813830A27 14 V 5%; 225 mW MMBZ5244BVR430 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR431 4813830A27 14 V 5%; 225 mW MMBZ5244LVR441 4813830A40 33 V 5%; 225 mW MMBZ5257BVR451 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR621 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR641 4813830A14 5.1 V 5%; 225 mW MMBZ5231BVR650 4813830A25 12 V 5%; 225 mW MMBZ5242B
crystal: (see note 2)Y5201 9102651Y01 filter 45.1 MHzY5202 9102651Y02 filter 45.1 MHz
notes:
must be ordered by Motorola part numbers.1. For optimum performance, diodes, transistors, and integrated circuits
2. When ordering quartz crystal units or ceramic resonators, specify carrierfrequency, crystal (or resonator) frequency, and crystal (or resonator) typenumber.
Y5211 4802653Y01 resonator 44.6450 MHz
September, 2000 6880906Z19-O 17
1C
ON
TR
OLL
ER
VOLUME DOWN
15
J101
12
4
HM
18
3
8
2
10
MON
MENU
9
17
J901
MIC3
J903
7
J902
16
14
11
FLEX
SEL
SCAN
6
13
PHONE
VOLUME UP
LED
5
ON OFF
(POT)
CALL
ON/OFF
DISPLAY UNCATALOGED !!!
6
ANALOG_19
ANALOG_3
ANALOG_28
NUC973C972
NU
VR908
C971
5.1V
U970
21
3
NU
10K
R941
Q941
2.2K
R98247K
R970
200K
R973
200KR971
FLT_A+
FLT_A+
0
R980
200KR981
1K
R902
VR993
CR925
14V
C904NU
C903NU
R9264.7K
D941
yellow
0.01UFC935
R933
100K
R958
4.7K
0.1UFC934
20K
R951
1 2
3 4
5 6
FLT_A+
FLT_A+
GOLD_SW_6P
PB925
TOU
CH
_SW
green
D960
D959green
13
VR909
NU
14
+5V
SPI_DATA_BUF
SPI_CLCK_BUF
LED_CE7
2.2UFC970
HANDSET_AUDIO5
+5V
1
HOOK16
ON_OFF_CONTROL
D965green
D963
D964green
green
green
D961
D962
+5V
green
N.U.R932
Q953
N.U.
R931
+5V
+5V
N.U.
Q951
U970
67
5
8
4
FLT_A+
R95410
12
1M
R974
GND
R919
470K
R972
4.7K
R920
4.7K
R921
4.7K
C911NU
VR0907 5.1v
VR906
C941
5.1v
0.1UF
4.7K
47K
R955
R947R94547K
R94347K
D956green
D955green
D953green
D952green
D951green
yellowD942
R944270
R946
D944
green
270
D943
red
Q942
R918
4.7K
4.7K
R917R916
4.7K
4.7K
R915
OE
Q14
5Q2 6Q3 7Q4 14Q5 13Q6 12Q7 11Q8
9QS
QS_10
1Strobe
VDD
16
8
VSS
U941
Clock3
2Data
15
8
GND
4
2
HANDSET_AUDIO
7
N.C.
3
BUS+
6
HOOK
1
PTT
5
N.C.
R925
MIC_HI
4.7K
D958
green
D957green
greenD954Q944
TP902
Q943
C901470pF
R952
20K
2
INT_SPKR+18
INT_SPKR-
1
LCD_CE11
INT_SPKR+
4.7K
R922
BUS+4
15
2
PTT
+5V10
FLT_A+
C925
NU
C915NU
OUTPUT_B-415
OUTPUT_B-514
OUTPUT_B-613
OUTPUT_B-712
OUTPUT_B-811
OUTPUT_B-9
22
VDD
2
VSS
OUTPUT_B-2
42OUTPUT_B-20
41OUTPUT_B-21
40OUTPUT_B-22
39OUTPUT_B-23
38OUTPUT_B-24
37OUTPUT_B-25
36OUTPUT_B-26
35OUTPUT_B-27
34OUTPUT_B-28
33OUTPUT_B-29
17OUTPUT_B-3
32OUTPUT_B-30
31OUTPUT_B-31
30OUTPUT_B-32
29OUTPUT_B-33
16
N.C18
N.C1
21OSC-IN
20OUTPUT_B-1
10OUTPUT_B-10
9OUTPUT_B-11
8OUTPUT_B-12
7OUTPUT_B-13
6OUTPUT_B-14
5OUTPUT_B-15
4OUTPUT_B-16
3OUTPUT_B-17
44OUTPUT_B-18
43OUTPUT_B-19
19
U932
27BACKPLANE-IN
26BACKPLANE-OUT
24CLOCK-IN
25DATA-IN
N.C28
N.C23
U942
4
5
2
1
3
PB913
GOLD_SW_6P
12
34
56
+5V
TOU
CH
_SW
Q925
R95647K
8
9
24KR957
24
25
26
27
28
29
3
30
31
32
33
34
4
5
6
7
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
4
56
H931
GOLD_SW_6P_SHORT
PB921
TOU
CH
_SW
12
3
R953
10K
VR90314V
Q952
VR90414V
10uFC942
VR901
VR902 5.1v 5.1v
R901
270
TP901
470pF
green
C902
green
D970
FLT_A+
D969
VR90514V
D967green
D966
12
34
56
green
12
34
56
GOLD_SW_6P
PB915
TOU
CH
_SW
4
56
PB918
TOU
CH
_SW
GOLD_SW_6PGOLD_SW_6P
TOU
CH
_SW
PB91712
3
PB916
TOU
CH
_SW
12
34
56
12
34
56
GOLD_SW_6P
12
34
56
PB914
TOU
CH
_SW
GOLD_SW_6P
NC
TOU
CH
_SW
PB922
GOLD_SW_6P_SHORT
NC
NC
NC
NC
NC
NC
INT_SPKR-17
NC
NC
270
R948
R94247K
Schematic Diagramfor FLN8744A Control Head
18 6880906Z19-O September, 2000
U942
PB922
PB921
PB925 PB915
H931
PB916
VIEWED FROM SIDE 1
PB917 PB918
PB914
PB913
J903
D943
D964
D944
D94
2
D94
1
D95
3
D95
7
D96
1
D96
5
D96
9
D95
6D
967
D96
3
D95
9
D95
5
D95
1
D95
2D95
4
D95
8
D96
2
D96
6
D97
0
D960
1
1
18
VR907
VR906
CR925
R915
R916
R95
8
C79
3C
791
C911
C915
1
C903
C925
R926
C904
C79
2
+
+
14
5 8
1
6
7 17
18
28VR908
Q941
Q951
R095
Q944
Q942
R943
R945R925
Q925
VR903
R970 TP901
TP902C902
VR905VR902
C970
R974R972
VR904
VR901R982
VR993
C901
R901
Q943R946
R947R932C942
R951
C941
R918
Q952
U970U941
U932
VIEWED FROM SIDE 2
R917
R952
R953
R955
R919R920R921R922
1
8 9
16
VR909
Q953
R931
R941
C934
R933
C93
5
R98
1
R98
0
R94
2
R94
4
R95
7
R95
6
R94
8
R97
3R
902
R97
1
2939
40
J902
J901
Parts ListFLN8744A Control Head Board PL-201002-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
capacitor, fixed: uF +/-5%; 50 V:unless otherwise stated
C970 2311049A09 2.2C901, 902 2113741F17 470 pFC934 2113743K15 ceramic 0.1 pFC935 2113741F49 0.01 pFC941 2113743K15 ceramic 0.1C942 2311049J23 tantalum 10 10%; 7 V
diode: (see note)CR925 4813833C02 dual 70 V common cathode
light emitting diode: (see note)D941, 942 4805729G73 yellowD943 4805729G74 redD944 4805729G75 greenD951 thru 967 4805729G75 greenD969, 970 4805729G75 green
H931 7202662Y01 display_LCD
connector, receptacle:J901 0902636Y01 connector, flex cable, side entryJ902 2809926G01 SMT headerJ903 2805924V01 mic connector
transistor: (see note)Q925 4880048M01 NPN DIG 47k/47kQ941 4880048M01 NPN DIG 47k/47kQ942 thru 944 4813824A10 NPN 40 V 0.2A general purposeQ951 4813824A10 NPN 25 V 5AQ952 4813822A20 NPN_MJD200T4
resistor, fixed: +/-5%; 1/8 W:unless otherwise stated
R955 0662057A65 4.7kR956 0662057A89 47kR957 0662057A82 24kR958 0662057A65 4.7kR970 0662057A89 47kR971 0662057B05 200kR972 0662057B14 470kR973 0662057B05 200kR974 0662057B22 1 Meg.R980 0662057B47 0 ohmR981 0662057B05 200kR982 0662057A57 2.2kR901 0662057C61 270 ohmsR902 0662057A49 1kR915 thru 922 0662057A65 4.7kR925, 926 0662057A65 4.7kR933 0662057A97 100kR941 0662057A73 10kR942, 943 0662057A89 47kR944 0662057C61 270 ohmsR945 0662057A89 47kR946 0662057C61 270 ohmsR947 0662057A89 47kR948 0662057C61 270 ohmsR951 0662057A80 20kR952 0662057A80 20kR953 0662057A73 10kR954 0680194M01 10 ohms
integrated circuit: (see note)U942 1805642V01 potentiameter switchU970 5113818A03 high performance single supplyU932 5105625U61 MM5453VXU941 5113806A35 MC14094B
Zener diode: (see note)VR908 4813830A14 5.1 V 5% 225 mW MMBZ5231BVR901 thru 907 4813830A27 14 V 5% 225 mW MMBZ5244L
note: For optimum performance, diodes, transistors, and integrated circuitsmust be ordered by Motorola part numbers.
VR993 4813830A27 14 V 5% 225 mW MMBZ5244L
Circuit Board Details & Parts List for FLN8744AControl Head
September, 2000 6880906Z19-O 19
25
23
78
10
9
11
12
13
24
30
29
14
15
16
1718
19
20
21
22
23
1
4
5
6 2627
28
RPD-20118-0
31
32
GTX Exploded View &Mechanical Parts List, 30 W
Parts ListGTX Mechanical Parts List; 30 W PL-201019-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
1 3605422W02 exterior volume knob2 5480643K01 logo label3 3608147K01 interior volume knob4 1580356K01 housing5 3280511L01 LCD frame gasket6 7580358K01 keypad7 7202631Y01 LCD display8 2802638Y02 connector9 0780360K01 LCD frame10 FLN8744 control head board11 8402618Y01 flexible circuit12 3202620Y01 control head gasket13, 14, 15 0185808L01 assembly, cover16 ---- main board17 0185787M01 PA shield18 0310907A20 mechanical screw, M3x0.5x1819 3080562V02 power cable20 2680567V01 PM shield21 4205938V01 clip spring22 FHN5875 accessory kit23 3202606Y01 accessory connector gasket24 4280587L01 accessory clamp25 2680547V01 chassis26 ---- FCC label27 7585697M01 speaker pad28 2802638Y01 connector29 5080442U02 speaker30, 31, 32 HLN9640 trunnion kit
non-referenced items
54-85743M01 LABEL
20 6880906Z19-O September, 2000
25 24
23
23
1
4
5
6
78
10
9
11
12
13
29
14
28
21
15
16
17
18 19
20
22
26
27
RPD-20102-0
GTX Exploded View &Mechanical Parts List, 12 W
Parts ListGTX Mechanical Parts List; 12 W PL-201020-O
REFERENCE MOTOROLASYMBOL PART NO. DESCRIPTION
1 3605422W02 exterior volume knob2 5480643K01 logo label3 3608147K01 interior volume knob4 1580356K01 housing5 3280511L01 LCD frame gasket6 7580358K01 keypad7 7202631Y01 LCD display8 2802638Y02 connector9 0780360K01 LCD frame10 FLN8744 control head board11 8402618Y01 flexible circuit12 3202620Y01 control head gasket13 2680439K01 cover shield14 3202619Y01 cover gasket15 1580355K01 cover assembly16 ---- main board17 2680519K01 PA shield18 0310907A20 mechanical screw, M3x0.5x1019 4205938V01 clip spring20 4280587L01 accessory clamp21 3202606Y01 accessory connector gasket22 FHN5875 accessory kit23 2780354K01 chassis24 ---- FCC label25 7585697M01 speaker pad26 2802638Y01 connector27 5080442U02 speaker28, 29 GLN7317 trunnion kit
REPLACEMENT PARTS ORDERINGORDERING 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 orders should specify the crystal or channel element type number, 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:
TELEPHONE ORDERS
TELEX/FAX ORDERS
Replacement Parts/Test Equipment/Manuals
Crystal Service Items:Motorola Inc.Americas Parts DivisionAttention: Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196
Federal Government Orders:
Motorola Inc.Americas Parts DivisionAttention: Order Processing7230 Parkway DriveLandover, MD 21076
International Orders:
Motorola Inc.Americas Parts DivisionAttention: InternationalOrder Processing1313 E. Algonquin RoadSchaumburg, IL 60196
Americas Parts Division:1-800-826-1913 (For Federal Government Orders)Call: 847-576-80121-847-538-8023 (International Orders)
Americas Parts Division:FAX: 847-538-8198(Domestic)847-576-3023 (International)Parts ID: 847-538-8194Telex: 280127 (Domestic)403305 (International)
Federal Government Orders:FAX: 410-712-4991
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: 1-800-247-2346FAX: 1-800-232-9272
Motorola, Inc.Radio Products Group1000 W. Washington St.Mt. Pleasant, IA 52641
Copyright© 2000 Motorola, Inc.All Rights ReservedPrinted In U.S.A.6880906Z19-O