Motorola GM1200E Manuel utilisateur
European Publications Department (RPG) Fleet, Hampshire, England
Issue: May 1998
GM1200E
Mobile Radio
Basic Service Manual
68P64115B12
ii
Cautions andWarnings
iii
CAUTION
ELECTROSTATIC SENSITIVE DEVICES
PRECAUTIONS SHOULD BE TAKENTO MINIMIZE THE RISK OF DAMAGE BY
ELECTROSTATIC DISCHARGETO 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 andWarnings
iv
Cautions andWarnings
v
WARNING
SAFETYWARNINGS
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 ANDTESTS ARE MADE TO ENSURETHAT 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 PROTECTTHEMSELVES.
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 ASTHE 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 andWarnings
vi
Basic Service Manual vii
Basic Service Manual
Contents
Contents
Chapter
1.0 General
Gives a brief introduction into the manual; the service policy, models and
technical specifications.
2.0 Maintenance
Describes how to disassemble/assemble the radio for maintenance purposes
and provides lists of test equipment.
3.0 Accessories
Gives service details and provides a list of accessories available for the radio.
4.0 RadioTuning Procedure
Provides detailed radio tuning procedure for all bands available.
Appendix
A.0 PL (CTCSS) / DPL Codes
B.0 External Device Connectors
C.0 Non Prescribed Data (NPD) Application Notes
Contents
viii Basic Service Manual
General 1-i
Chapter 1
General
Table of Contents
Table of Contents
Paragraph Page
1.0 Introduction
................................................................................................ 1
2.0 Scope of Manual
........................................................................................ 1
3.0 How to UseThis Manual
............................................................................ 1
4.0 Warranty and Service Support
................................................................. 1
4.1 Warranty Period........................................................................................... 1
4.2 After Warranty Period.................................................................................. 2
4.3 Piece Parts .................................................................................................. 2
4.4 Technical Support........................................................................................ 2
4.5 Associated Documentation.......................................................................... 2
5.0 Model Chart
................................................................................................ 3
5.1 Service Options ........................................................................................... 4
6.0 Technical Specifications
........................................................................... 5
6.1 General........................................................................................................ 5
6.2 Transmitter................................................................................................... 5
6.3 Receiver....................................................................................................... 6
6.4 Self-Quieting Frequencies........................................................................... 6
Table of Contents
1-ii General
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