Motorola Gm1200e 68p64115b12 Manual

							 
European Publications Department (RPG) Fleet, Hampshire, England
Issue: May 1998 
GM1200E  
Mobile Radio 
Basic Service Manual 
68P64115B12 
						

							 
ii 
						

							 
Cautions and Warnings
iii 
 
 
CAUTION
ELECTROSTATIC SENSITIVE DEVICES
PRECAUTIONS SHOULD BE TAKEN TO MINIMIZE THE RISK OF DAMAGE BY 
ELECTROSTATIC DISCHARGE TO ELECTROSTATIC SENSITIVE DEVICES (ESDs). 
ANY DEVICES EMPLOYING METAL OXIDE SILICON (MOS) TECHNOLOGY ARE
PARTICULARLY SUSCEPTIBLE.
CIRCUIT DIAGRAMS MARKED WITH THE ABOVE SYMBOL INDICATE ELECTRONIC
CIRCUITS (PECs) FOR WHICH ESD HANDLING PRECAUTIONS ARE NECESSARY.
THE USER SHOULD REFER TO BS5783, 1984: HANDLING OF ELECTROSTATIC
SENSITIVE DEVICES. THIS BRITISH STANDARD SUPERSEDES DEF STAN 59-98,
ISSUE 2. 
						

							 
Cautions and Warnings
iv 
						

							 
Cautions and Warnings
v 
 
 
WARNING 
SAFETY WARNINGS 
THE ELECTRICAL POWER USED IN THIS EQUIPMENT IS AT A VOLTAGE HIGH
ENOUGH TO ENDANGER LIFE.
BEFORE CARRYING OUT MAINTENANCE OR REPAIR, PERSONS CONCERNED
MUST ENSURE THAT THIS EQUIPMENT IS ISOLATED FROM THE ELECTRICAL
SUPPLY AND TESTS ARE MADE TO ENSURE THAT ISOLATION IS COMPLETE.
WHEN THE SUPPLY CANNOT BE ISOLATED, MAINTENANCE AND REPAIR MUST BE
UNDERTAKEN BY PERSONS WHO ARE FULLY AWARE OF THE DANGERS INVOLVED
AND WHO HAVE TAKEN ADEQUATE PRECAUTIONS TO PROTECT THEMSELVES.
COMPONENTS CONTAINING BERYLLIUM OXIDE ARE USED IN THIS EQUIPMENT.
DUST FROM THIS MATERIAL IS A HEALTH HAZARD IF INHALED OR ALLOWED TO
COME INTO CONTACT WITH THE SKIN.
GREAT CARE MUST BE TAKEN WHEN HANDLING THESE COMPONENTS WHICH
MUST NOT BE BROKEN OR SUBJECTED TO EXCESSIVE HEATING. DEFECTIVE
COMPONENTS MUST BE DISPOSED OF IN ACCORDANCE WITH CURRENT
INSTRUCTIONS.
LEAD ACID BATTERIES MAY BE FITTED AS THE STANDBY BATTERY. CARE MUST BE
TAKEN WHEN REMOVING OR INSTALLING THESE BATTERIES TO:
1. ENSURE THAT THE TERMINALS ARE NOT SHORTED TOGETHER.
2. PREVENT SPILLAGE OF THE CORROSIVE ELECTROLYTE. 
						

							 
Cautions and Warnings
vi 
						

							 
Basic Service Manualvii 
Basic Service Manual 
Contents
Contents
 
Chapter 
1.0General 
Gives a brief introduction into the manual; the service policy, models and
technical specifications. 
2.0Maintenance 
Describes how to disassemble/assemble the radio for maintenance purposes
and provides lists of test equipment. 
3.0Accessories 
Gives service details and provides a list of accessories available for the radio. 
4.0Radio Tuning Procedure 
Provides detailed radio tuning procedure for all bands available. 
Appendix 
A.0PL (CTCSS) / DPL Codes
B.0External Device Connectors
C.0Non Prescribed Data (NPD) Application Notes 
						

							 
Contents
viiiBasic Service Manual 
						

							 
General1-i 
Chapter 1 
General 
Table of Contents 
Table of Contents 
ParagraphPage 
1.0Introduction 
................................................................................................ 1  
2.0Scope of Manual  
........................................................................................ 1  
3.0How to Use This Manual  
............................................................................ 1  
4.0Warranty and Service Support  
................................................................. 1
4.1Warranty Period........................................................................................... 1
4.2After Warranty Period.................................................................................. 2
4.3Piece Parts.................................................................................................. 2
4.4Technical Support........................................................................................ 2
4.5Associated Documentation.......................................................................... 2  
5.0Model Chart  
................................................................................................ 3
5.1Service Options........................................................................................... 4  
6.0Technical Specifications  
........................................................................... 5
6.1General........................................................................................................ 5
6.2Transmitter................................................................................................... 5
6.3Receiver....................................................................................................... 6
6.4Self-Quieting Frequencies........................................................................... 6 
						

							 
Table of Contents
1-iiGeneral