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Motorola GTX Service Manual
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Motorola GTX Service Manual

Motorola GTX Service Manual

Motorola portable radios service manual
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See also: User Manual , Installation Manual
GTX/GTX LTR/LTS 2000™
Portable Radios
Service Manual
© 1997 by Motorola, Inc.,
Radio Products Group
8000 W. Sunrise Blvd., Ft. Lauderdale, FL 33322
Printed in U.S.A. 2/97 All Rights Reserved.
68P02948C90-O

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  • Page 1 GTX/GTX LTR/LTS 2000™ Portable Radios Service Manual © 1997 by Motorola, Inc., Radio Products Group 8000 W. Sunrise Blvd., Ft. Lauderdale, FL 33322 Printed in U.S.A. 2/97 All Rights Reserved. 68P02948C90-O...

  • Page 2: Foreword

    (RF) electromagnetic energy emitted by FCC-regulated equip- ment. Motorola subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure substantially below FCC recommended limits.

  • Page 3: Table Of Contents

    Performance Specifications: GTX/GTX LTR/LTS 2000 ........
  • Page 4 Table of Contents GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Bus Operation ................
  • Page 5 GTX /GTX LTR Mechanical Parts List........
  • Page 6 Table of Contents GTX/GTX LTR/LTS 2000 Portable Radios Service Manual This page intentionally left blank 68P02948C90-O February 1997...

  • Page 7: Gtx And Gtx Ltr Portable Radios Model Chart

    900 MHz 1.5 ppm GTX LTR Portable Radio HNN9628 Battery (7.5 V rechargeable) NAF5038 1/2 Wavelength Whip 900 MHz KIT BREAKDOWN FUF1194 900 MHz 1.5 ppm Portable Radio: FUF1199 900 MHz 1.5 ppm GTX LTR Portable Radio: FLN2436 Front Unit FUF1196 1.5 ppm RF Unit FLN8577...

  • Page 8: Lts 2000 Portable Radio Model Chart

    Foreword GTX/GTX LTR/LTS 2000 Portable Radios Service Manual LTS 2000 Portable Radio Model Chart LTS 2000 Portable Radio Model Chart LTS 2000 Portable Radio, H10WCH4DC5AN FUF1195 900 MHz, 1.5 ppm Portable Radio HNN9628 Battery (7.5 V rechargeable) HLN8255 Belt Clip...

  • Page 9: Gtx/Gtx Ltr/Lts 2000 Options

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Foreword GTX/GTX LTR/LTS 2000 Options GTX/GTX LTR/LTS 2000 Options GTX/LTR/LTS 2000 Options Option Description Factory Mutual (FM) Batteries H236 Fully Approved Factory Mutual Intrinsically Safe Radio (includes FA 1200 mAH battery) Factory Mutual Intrinsically Safe Radio (includes 600 mAH battery)

  • Page 10: Gtx/Gtx Ltr/Lts 2000 Accessories

    Foreword GTX/GTX LTR/LTS 2000 Portable Radios Service Manual GTX/GTX LTR/LTS 2000 Accessories GTX/GTX LTR/LTS 2000 Accessories GTX/GTX LTR/LTS 2000 Accessories Accessory Description Charger Pick-ups HTN9803 Single Unit, Rapid Charger, UK Plug, 240 V HTN9702 Single Unit Standard Charger, 110 V...
  • Page 11 GTX LTR Portable Radio User’s Guide 68P02948C90-O GTX/GTX LTR/LCS 2000 Portable Radios Service Manual Radio Service Software (RSS)* RVN4150B RSS Package for GTX and GTX LTR Radio Programming RVN4156B RSS Package for LCS/LTS 2000 Radio Programming 68P02946C20-A LCS/LTS 2000 RSS User’s Guide 68P02948C70-O GTX/GTX LTR RSS User’s Guide...

  • Page 12: Performance Specifications: Gtx/Gtx Ltr/Lts 2000

    Foreword GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Performance Specifications: GTX/GTX LTR/LTS 2000 Performance Specifications: GTX/GTX LTR/LTS 2000 GENERAL RECEIVER TRANSMITTER FCC Designation: AZ489FT5781 Frequency Range: 935-941 MHz RF Power: 2.5 W Power Supply: NiCad Battery Bandwidth 6 MHz Frequency range:...

  • Page 13: Service Aids

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Foreword Service Aids Service Aids The following table lists service aids recommended for working on the GTX/GTX LTR/LTS 2000. MOTOROLA NO. DESCRIPTION APPLICATION RLN4008 Radio Interface Box Enables communication between the radio and the computer’s serial communications adapter.

  • Page 14: Service Tools

    The following table lists the tools recommended for working on this family of radios; these tools are also available from Motorola. Note that the R-1319A workstation requires the use of a specific “heat focus head” for each of the components on which this item is used. Each of these heat focus heads must be ordered separately. The individual heat focus heads (and the components on which they are used) are listed at the top of the next page.

  • Page 15: Test Set Service Cable

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Foreword Service Tools HEAT-FOCUS INSIDE DIMENSIONS USED ON MAXIMUM PRESCRIBED HEADS OF HEADS HEAT SETTING 6680334B52 0.572" x 0.572" U701 Refer to Maintenance Section of Manual for prescribed heat setting. 6680371B15 0.460" x 0.560"...

  • Page 16: Radio Model Numbering System

    Radio Model Numbering System Radio Model Numbering System The model number, serial number, and Motorola FCC designation number are all on a label attached to the back of your radio. All GTX/GTXLTR/LTS 2000 radio models are synthesized, 8-channel units that come standard with Tone Private- Line (TPL)/Digital Private-Line (DPL) coded squelch or carrier squelch, which may be enabled/disabled on a per channel basis.

  • Page 17: Radio Service Software Information

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Foreword Radio Service Software Information Radio Service Software Information To run the Radio Service Software, you will need the following equipment: Required Equipment: 1. IBM XT, AT, Convertible, or System/2 Model 30/50 with 512K RAM, Dual Floppy Disk Drives or one Floppy Disk and one Hard Disk.

  • Page 18: Configuring The Rib And Radio

    Foreword GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Configuring the RIB and Radio Configuring the RIB and Radio Connect the RIB to the computer (Figure 2). Plug the large 25-pin end of the HKN9857 programming cable into the RIB. The other end of this cable has a “battery eliminator.”...

  • Page 19: Important Safety Information: Intrinsically Safe Radios

    Do not disassemble the FMRC Approved Product unit in any way that exposes the internal electrical circuits of the unit. Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and FM Approval label- ing. Radios will not be “upgraded” to this capability and labeled in the field.

  • Page 20: Repair Of Fmrc Approved Products

    REPAIRS FOR MOTOROLA FMRC APPROVED PRODUCTS ARE THE RESPONSIBILITY OF THE USER. You should not repair or relabel any Motorola manufactured communication equipment bearing the FMRC Approval label (“FMRC Approved Product”) unless you are familiar with the current FMRC Approval Standard for repair service (“Class Num- ber 3605").

  • Page 21: Relabeling

    Do Not Substitute Options or Accessories The communications equipment package that Motorola submits to FMRC for testing and approval is tested as a system that consists of the communications unit itself and the battery, antenna and other options or accessories that make up the rest of the package to be approved.
  • Page 22 Foreword GTX/GTX LTR/LTS 2000 Portable Radios Service Manual This page intentionally left blank 68P02948C90-O February 1997...

  • Page 23: Radio Disassembly/Assembly Overview

    Radio Disassembly This section explains, step by step, how to disassemble Battery Removal and reassemble the GTX/GTX LTR/LTS 2000 radios. 1. The battery latch is located at the bottom of the Safety Information radio (Figure 1-1). Press and hold the battery latch towards the front of the radio.

  • Page 24: Main Board Removal

    Radio Disassembly/Assembly GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Radio Disassembly 2. Unscrew the antenna counter-clockwise until Pull the chassis out and away from the it is detached from the radio. housing as shown by the arrow (Figure 1-4) and beware of the front cover flexible circuit.

  • Page 25: Front Housing Board Removal

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Radio Disassembly/Assembly Radio Reassembly Chassis Gasket Main board Figure 1-8. Remove Front Housing Shield 3. .Separate the front housing board from the front housing. Locking clips Shield Radio Reassembly Figure 1-6. Separate Main Board From Chassis Front Housing Reassembly 6.

  • Page 26: Chassis Reassembly

    Radio Disassembly/Assembly GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Radio Reassembly 4. Fold the LCD flexible circuit (Figure 1-11). Make sure the LCD flexible circuit is outside. 5. Place the front housing shield into the front housing using the four slots on the front housing wall as the guide (Figure 1-10).

  • Page 27: Radio Reassembly

    GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Radio Disassembly/Assembly Radio Reassembly 8. Place the chassis assembly and front housing and frequency controls through the housing assembly on a flat surface with the top face of top. housing in a reverse and opposite direction...
  • Page 28 Radio Disassembly/Assembly GTX/GTX LTR/ LTS 2000 Portable Radios Service Manual This page intentionally left blank 68P02948C90-O February 1997...

  • Page 29: Theory Of Operation

    This section provides a detailed theory of operation for radio consists of several sections including the high IF, the GTX/GTX LTR/LTS 2000 radios and its compo- the second LO, the second IF, and the IF IC chip. The nents: the receiver, transmitter, frequency generation first LO signal and the RF signal mix to the IF fre-...
  • Page 30 Theory of Operation GTX/GTX LTR/LTS 2000 Portable Radios Service Manual Transmitter RF & AUDIO SECTION VOLUME 45.1 MHz 935-941MHz CONTROL 2ND MIXER & DET_AUDIO FRONT-END 1ST MIXER ROTARY MODULE DEMODULATOR ROT1 SWITCH & LEVEL ROT2 ENCODER 889.9-995.9 MHz 28-PIN LOCK_DET...

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