Motorola MT912M Service Manual

MTM800
with Enhanced Control Head
TETRA Mobile Terminal
380–430 MHz (MT912M)
410–470 MHz (MT512M)
Basic Service Manual
Part Number: 6866539D28-D
*6866539D28*

Motorola MT912M Specifications

General

Brand	Motorola
Model	MT912M
Category	Handhelds
Language	English

Summary

Product Safety and RF Exposure

RF Energy Exposure Awareness and Control Information

Information on RF energy awareness and control for FCC requirements.

OPERATIONAL WARNINGS

For Vehicles With Air Bags

Warning about placing terminals near air bags to prevent injury.

Potentially Explosive Atmospheres

Precautions for use in potentially explosive atmospheres.

Blasting Caps And Blasting Areas

Warning regarding use near blasting caps and posted areas.

ADDITIONAL IMPORTANT INFORMATION FOR SERVICING AND INSTALLING THE TERMINAL

CHAPTER 1 SCOPE & WARRANTY INFORMATION

CHAPTER 2 MODEL INFORMATION & ACCESSORIES

Model Information

Details of MTM800 with Enhanced Control Head Mobile Terminal models.

Model Specifications*

CHAPTER 3 OVERVIEW

Digital Modulation Technique

Explanation of the digital modulation technologies used.

CHAPTER 4 PROGRAMMING THE TERMINAL

CHAPTER 5 TEST SETUP & TESTING

CHAPTER 5.1 TEST SETUP & TESTING for 380–430 MHz & 410–470 MHz

Detailed test setup and procedures for specific frequency bands.

CHAPTER 5.1 TEST SETUP & TESTING for 380–430 MHz and 410–470 MHz

Typical Test Setup

Description and diagram of the typical test setup.

Test Equipment

Test Check List

Duplex Test

Configuration of the IFR 2968 System Setup

Steps to configure the IFR 2968 system for testing.

RF Tests

Receiver Tests

Procedures for testing receiver functions.

Simulate Base Station (registration)

Procedure for simulating base station registration.

RSSI Test

Procedure for testing Received Signal Strength Indicator.

Transmitter Tests

Call Processing Test

Talk Back

Procedure for testing the talk-back function.

Call to Mobile

Procedure for testing calls to mobile units.

Manual Mode Testing

Tests

CHAPTER 6 MAINTENANCE

Safe Handling of CMOS and LDMOS Devices

General Repair Procedures and Techniques

Repair Procedures and Techniques – General

Parts Replacement and Substitution

Disassembling and Reassembling the Terminal – General

Terminal Disassembly and Reassembly – Detailed

Enhanced Control Head Removal

Transceiver Board Removal

Reassembly the Terminal Chassis And Transceiver Board

Enhanced Control Head – Disassembly

Enhanced Control Head – Reassembly

Remote Head Enhanced – Disassembly

Remote Head Enhanced – Reassembly

Remote Mount Enhanced Control Head – Disassembly

Remote Mount Enhanced Control Head – Reassembly

Data Expansion Head Enhanced – Disassembly

Data Expansion Head Enhanced – Reassembly

Motorcycle Mount Enhanced Control Head – Disassembly

Motorcycle Mount Enhanced Control Head – Reassembly

EXPLODED VIEWS & PARTS LISTS

Transceiver – Exploded View and Parts List

Enhanced Control Head – Exploded View and Parts List

Data Expansion Head Enhanced – Exploded View and Parts List

Remote Mount Enhanced Control Head – Exploded View and Parts List

Remote Mount Configuration – Exploded View and Parts List

Motorcycle Mount Enhanced Control Head – Exploded View and Parts List

APPENDIX A REPLACEMENT PARTS & KITS

Servicing MTM800 with Enhanced Control Head Mobile Units

SERVICE KITS

Table 2 Service Kits-To-Model Chart

APPENDIX B PRODUCT SPECIFIC INFORMATION

Equipment Electrical Ratings

Fuse Identification