Basic Service Manual - Motorola Solutions .Basic Service Manual ... This manual provides sufficient

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  • HT750 MTX850 MTX8250HT1250 MTX850LS MTX8250LSHT1250LS HT1250LS+ MTX950HT1550XLS MTX9250

    Portable RadiosProfessional Radio

    Basic Service Manual

    Motorola, Inc.8000 West Sunrise BoulevardFort Lauderdale, Florida 33322 68P80906Z54-D

  • ii

    ForewordThis manual provides sufficient information to enable qualified service technicians to troubleshoot and repair CDM Series mobile radios to the component level.

    Product Safety and RF Exposure Compliance

    ATTENTION!

    This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet (Motorola Publication part number 68P81095C98) to ensure compliance with RF energy exposure limits.

    For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which lists approved accessories: http://www.motorola.com/cgiss/index.shtml.

    Computer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive license to use that arises by operation of law in the sale of a product.

    Document CopyrightsNo duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola.

    DisclaimerThe information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit described herein; nor does it cover any license under its patent rights nor the rights of others.

    TrademarksMOTOROLA and the Stylized M logo are registered in the US Patent & Trademark Office. All other products or service names are the property of their respective owners.

    Motorola, Inc. 2002.

    Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet.

    !C a u t i o n

    http://www.motorola.com/cgiss/index.shtml

  • iii

    Table of Contents

    Foreword.........................................................................................................ii

    Product Safety and RF Exposure Compliance ............................................................... iiComputer Software Copyrights....................................................................................... iiDocument Copyrights ..................................................................................................... iiDisclaimer ....................................................................................................................... iiTrademarks..................................................................................................................... ii

    List of Figures ...............................................................................................ix

    List of Tables .................................................................................................xi

    Chapter 1Introduction ................................................................................................ 1-1

    1.1 Scope of Manual................................................................................................. 1-11.2 Warranty and Service Support............................................................................ 1-1

    1.2.1 Warranty Period and Return Instructions................................................. 1-11.2.2 After Warranty Period .............................................................................. 1-11.2.3 Piece Parts Availability............................................................................. 1-21.2.4 Technical Support .................................................................................... 1-3

    1.3 Radio Model Information..................................................................................... 1-4

    Chapter 2Intrinsically Safe Radio Information......................................................... 2-1

    2.1 FMRC Approved Equipment............................................................................... 2-12.2 Repair of FMRC Approved Products .................................................................. 2-2

    2.2.1 Repair ...................................................................................................... 2-22.2.2 Relabeling ................................................................................................ 2-22.2.3 Do Not Substitute Options or Accessories............................................... 2-3

    Chapter 3Maintenance ............................................................................................... 3-1

    3.1 Introduction ......................................................................................................... 3-13.2 Preventive Maintenance ..................................................................................... 3-1

    3.2.1 Inspection................................................................................................. 3-1

  • iv

    3.2.2 Cleaning Procedures................................................................................ 3-13.3 Safe Handling of CMOS and LDMOS Devices ................................................... 3-23.4 Repair Procedures and Techniques General ................................................. 3-23.5 Disassembling and Reassembling the Radio General ................................... 3-33.6 Detailed Radio Disassembly ............................................................................... 3-4

    3.6.1 Front Cover from Chassis Disassembly ................................................... 3-43.6.2 Chassis Assembly/Disassembly............................................................... 3-63.6.3 Keypad, Display, and Keypad/PassPort/Option Board Disassembly ....... 3-63.6.4 Speaker, Microphone, and Universal Connector Flex Disassembly ........ 3-83.6.5 PTT Disassembly ..................................................................................... 3-93.6.6 Control Top Disassembly ......................................................................... 3-9

    3.7 Detailed Radio Reassembly.............................................................................. 3-103.7.1 Control Top Reassembly........................................................................ 3-103.7.2 PTT Reassembly.................................................................................... 3-103.7.3 Speaker, Microphone, and Universal Connector Flex Reassembly ....... 3-103.7.4 Keypad, Display, and Keypad/PassPort/Option Board Reassembly...... 3-103.7.5 Chassis Assembly Reassembly ............................................................. 3-113.7.6 Chassis and Front Cover Reassembly................................................... 3-113.7.7 DTMF Retrofit Kit Procedure (Optional Upgrade Procedure)................. 3-123.7.8 Option Board Installation ........................................................................ 3-13

    3.8 HT750 Radio Exploded Mechanical View and Parts List ................................. 3-153.8.1 HT750 Exploded View........................................................................... 3-153.8.2 HT750 Exploded View Parts List ............................................................ 3-163.8.3 HT1250 and HT1250LS Exploded View ............................................... 3-173.8.4 HT1250 and HT1250LS Parts List ........................................................ 3-183.8.5 HT1250LS+ Exploded View .................................................................. 3-193.8.6 HT1250LS+ Exploded View Parts List .................................................. 3-203.8.7 MTX850 Exploded View ......................................................................... 3-213.8.8 MTX850 Exploded View Parts List ......................................................... 3-223.8.9 MTX850LS Exploded View ................................................................... 3-233.8.10 MTX850LS Exploded View Parts List ................................................... 3-243.8.11 MTX8250 Exploded View ....................................................................... 3-253.8.12 MTX8250 Exploded View Parts List ....................................................... 3-263.8.13 MTX8250LS Exploded View ................................................................. 3-273.8.14 MTX8250LS Exploded View Parts List ................................................. 3-283.8.15 HT1550XLS Explod