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Motorola MTX850 User Manual

Motorola MTX850
96 pages
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HT750 MTX850 MTX8250
HT1250 MTX850•LS MTX8250•LS
HT1250•LS HT1250•LS+ MTX950
HT1550•XLS MTX9250
Portable Radios
Professional Radio
Basic Service Manual
Motorola, Inc.
8000 West Sunrise Boulevard
Fort Lauderdale, Florida 33322
68P80906Z54-D

Table of Contents

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Motorola MTX850 Specifications

General IconGeneral
BrandMotorola
ModelMTX850
CategoryPortable Radio
LanguageEnglish

Summary

Chapter 1: Introduction

Scope of Manual

Details the manual's intended audience and content. It is current as of the printing date.

Warranty and Service Support

Outlines Motorola's support services for products during and after the warranty period.

Piece Parts Availability

Explains how to order replacement parts and product information directly from Motorola.

Technical Support

Provides contact information for technical assistance and lists service depot locations for repairs.

Radio Model Information

Details how to interpret model numbers to determine radio characteristics like power, band, and protocols.

Chapter 2: Intrinsically Safe Radio Information

FMRC Approved Equipment

Explains FMRC approval for radios used in hazardous locations and the associated labeling requirements.

Repair of FMRC Approved Products

Outlines user responsibility for repairs and defines key terms for FMRC approved product service.

Do Not Substitute Options or Accessories

Warns against substituting components or accessories not specifically approved for FMRC certified equipment.

Chapter 3: Maintenance

Preventive Maintenance

Recommends periodic visual inspection and cleaning for radios, though no scheduled program is required.

Safe Handling of CMOS and LDMOS Devices

Provides crucial precautions for handling static-sensitive electronic components to prevent damage.

Disassembling and Reassembling the Radio — General

Covers general procedures and tools required for disassembling and reassembling radios.

Detailed Radio Disassembly

Provides step-by-step instructions for disassembling various parts of the radio, starting with the front cover.

Detailed Radio Reassembly

Offers step-by-step instructions for reassembling the radio components after disassembly.

Service Aids

Lists recommended service aids such as programming software, cables, and test equipment for radio servicing.

Test Equipment

Lists essential test equipment required for servicing the radio models, including specifications.

Configuring and Wiring the Programming/Test Cable

Details the configuration and wiring of the programming/test cable for radio communication.

Chapter 4: Transceiver Performance Testing

RF Test Mode

Explains how to enter and use the radio's special test mode for alignment and repair purposes.

Test Frequencies for Display and Non-Display Radios

Lists radio channels and corresponding test frequencies for various models and test environments.

Receiver Performance Tests

Details specific tests for evaluating receiver performance, including sensitivity and distortion levels.

Transmitter Performance Checks

Outlines the procedure for checking transmitter performance parameters like power, modulation, and emissions.

Chapter 5: Radio Tuning, Programming, Cloning, Lowband Antenna Cutting Procedure, PassPort Tone Options, and Diagnostic Functions

Global Radio Tuning Setup

Describes the setup required for tuning radios using a PC, tuner program, and test equipment.

CPS Programming Setup

Details the setup for programming radio codeplugs using Customer Programming Software (CPS).

Cloning (Conventional and LTR)

Explains the process of copying radio content (frequency, options) between identical radios.

Cloning (Privacy Plus)

Covers the procedure for cloning codeplug information for Privacy Plus radios.

Cloning (PassPort)

Details how to clone PassPort data using the PPCPS software, focusing on personality and MIN settings.

Lowband Molded Antenna Cut Chart

Provides a chart and instructions for cutting lowband antennas to specific frequencies.

HT1250-LS+ Special Diagnostic Functions

Guides users on accessing and utilizing special diagnostic functions for the HT1250-LS+ model.

Chapter 6: Power Up Self-Test

Error Codes - Conventional and LTR Radios

Lists power-up error codes for conventional and LTR radios and their corresponding correction steps.

Error Codes - Privacy Plus

Details fatal and non-fatal error codes displayed during power-up for Privacy Plus radios.

Error Codes - PassPort

Explains power-up error codes specific to PassPort Trunking Controller Boards (PTCB).

Operation Display Codes

Lists operational display codes that indicate problems detected during radio use.

Chapter 7: Accessories

Antennas

Lists various antennas available for different radio series, categorized by frequency band and type.

Carrying Accessories

Lists carrying accessories like belt clips and holders suitable for all radio models.

Carry Cases

Details different types of carry cases available for various HT and MTX series radio models.

Chargers

Lists available chargers, including single-unit, multi-unit, and wall mount kits.

Vehicular Accessories

Describes vehicular adapters for UHF and VHF bands that support tri-chemistry charging.

Batteries

Lists various battery types and capacities, including NiMH, NiCd, and Lithium Ion.

Service Aids

Lists essential service aids like programming software, cables, and adapters for radio maintenance.

Option Boards

Details available option boards for radios, noting compatibility restrictions.

Manuals

Lists user and service manuals available for various radio models in different languages.

Chapter 8: Model Chart and Test Specifications

UHF 403–470 MHz (Conventional)

Provides a model chart and specifications for UHF 403-470 MHz conventional radios.

UHF 450–512 MHz (Conventional)

Details model configurations and specifications for UHF 450-512 MHz conventional radios.

UHF 403–470 MHz (LTR and PassPort)

Presents model charts and specifications for UHF 403-470 MHz radios supporting LTR and PassPort protocols.

VHF 136-174 MHz

Lists model charts and specifications for VHF 136-174 MHz radios.

Specifications, HT750 Radio

Provides detailed general, transmitter, and receiver specifications for the HT750 radio.

Specifications, HT1250 Radio

Details general, transmitter, and receiver specifications for the HT1250 radio.

Specifications, HT1550-XLS Radio

Outlines general specifications for the HT1550-XLS radio, including dimensions and battery life.

Glossary

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