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Ericsson GE MTL-SX Maintenance Manual

146-174 mhz portable two-way fm radio
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Mobile Communications
MTL-SX
146 - 174 MHz
PORTABLE TWO-WAY FM RADIO
TABLE OF CONTENTS
REAR COVER ASSEMBLY . . . . . . . . . . . . . . . . . LBI-38597
FRONT COVER ASSEMBLY (EARLIER) AND
CONTROL BOARD . . . . . . . . . . . . . . . . . . . . . . LBI-38514
FRONT COVER ASSEMBLY (LATER) LESS
CONTROL BOARD . . . . . . . . . . . . . . . . . . . . . . LBI-38834
SERVICE SECTION . . . . . . . . . . . . . . . . . . . . . . LBI-38515
Maintenance Manual
LBI-38432A

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Summary of Contents for Ericsson GE MTL-SX

  • Page 1 LBI-38432A Mobile Communications MTL-SX 146 - 174 MHz PORTABLE TWO-WAY FM RADIO TABLE OF CONTENTS REAR COVER ASSEMBLY ....LBI-38597 FRONT COVER ASSEMBLY (EARLIER) AND CONTROL BOARD .

  • Page 2: Table Of Contents

    Table 1 - UDC Pin Functions...................... NOTE The software contained in this device is copyrighted by Ericsson GE Mobile Communications, Inc. Unpublished rights are reserved under the copyright laws of the United States. Copyright© June 1990, Ericsson GE Mobile Communications Inc.

  • Page 3: Specifications

    LBI-38432 SPECIFICATIONS* GENERAL Frequency Ranges 146 - 162 MHz 157 - 174 MHz FCC Type Acceptance Number AXATR-182-B5 (146 - 162 MHz) AXATR-182-C5 (157 - 174 MHz) DOC Number TR-182-D2 Channel Capacity Frequency Stability 5.0 ppm Channel Spacing 30 kHz Operating Temperature Range -30°C to +60°C Maximum Relative Humidity...

  • Page 4: Options And Accessories

    LBI-38432 OPTIONS AND ACCESSORIES Radios, Antennas, Batteries Carrying Accessories 146-162 HELICAL ANTENNA PANC1C 157-174 HELICAL ANTENNA PANC1D 440-470 HELICAL ANTENNA PANC1F BELT CLIP PAHC1C CARRYING CASE WITH BELT LOOP PAHC1E SHOULDER Swivel Mount Plate PAHC1F STRAP 5203 WITH SWIVEL MT PAHC1K PAHC1G PAHC1H...

  • Page 5: Introduction

    EIA frequencies, can be programmed for INTRODUCTION encoded/decoded operation. Programmable Multi-Code Digital Channel The Ericsson GE MTL-SX radio is a high-quality mi- Guard - Similar capability as with tone Channel croprocessor-controlled synthesized portable FM radio. All Guard is provided.

  • Page 6: Description

    Assembly. It contains all microcomputer and audio circuitry which controls the radio. See the maintenance manuals spe- The MTL-SX portable radio is consists of a two primary cific to the Control Board or the Front Cover Assembly for assemblies. The Front Cover Assembly contains all of the service information on the related assembly.

  • Page 7: Universal Device Connector

    LBI-38432 SIDE VIEW FRONT VIEW Figure 1 - MTL-SX Portable Radio rapid charge units. In addition, the vehicular chargers/repeat- UNIVERSAL DEVICE CONNECTOR ers simultaneously charge the battery while the radio is operating. The UDC is located on the side of radio just above the PTT and Monitor Buttons.

  • Page 8: Programming

    LBI-38432 PROGRAMMING The radio’s personality is programmed using an IBM PC or compatible computer. A full-screen portable PC can be used for field programming. The Programming Manual and Software is TQ-3339 and TQ-4339. TQ-3339 is supplied with 5-1/4 inch floppy disks and TQ-4339 is supplied with 3-1/2 inch disks.

  • Page 9: Features Programmable On A Per Channel Basis

    Mutual Intrinsically Safe. Use of non-specified battery packs OPERATOR MANUAL voids Factory Mutual approval. The following battery pack options are approved for use in intrinsically safe radios: Complete operating details for the MTL-SX radio are included in operator manual LBI-38431. PAPA1F Rechargeable Battery Pack,...

  • Page 10: Accessories

    ACCESSORIES MAINTENANCE The accessories that follow are approved for use with The MTL-SX radio is a very reliable unit and will intrinsically safe radios. Use of accessories other than those normally provide many years of trouble-free service. The listed voids Factory Mutual approval.

  • Page 11: Figure 3 - Front Panel Parts

    LBI-38432 (19D438678, Sh. 3, Rev. 8) Figure 3 - Front Panel Parts Printed in U.S.A.

  • Page 12: Figure 4 - Rear Cover Assembly Block Diagram

    LBI-38432 BLOCK DIAGRAM Figure 4 - Rear Cover Assembly Block Diagram...

  • Page 13: Figure 5 - Front Cover Assembly Block Diagram

    BLOCK DIAGRAM LBI-38432 Figure 5 - Front Cover Assembly Block Diagram...

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