Professional Radio
GM Series
Service Maintainability
Issue: September 2000
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Computer Software Copyrights
The Motorola products described in this manual may include copyrighted Motorola computer programs stored
in semiconductor memories or other media. Laws in the United States and other countries preserve for
Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or
reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer
programs contained in the Motorola products described in this manual may not be copied or reproduced in
any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola
products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license
under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive
royalty-free license to use that arises by operation of law in the sale of a product.
Table of Contents
Chapter 1 INTRODUCTION
1.0 Scope of Manual..................................................................................................1-1
2.0 Warranty and Service Support.............................................................................1-1
2.1 Warranty Period and Return Instructions .......................................................1-1
2.2 After Warranty Period.....................................................................................1-1
2.3 European Radio Support Centre (ERSC).......................................................1-2
2.4 Piece Parts.....................................................................................................1-2
2.5 Technical Support...........................................................................................1-3
2.6 Related Documents........................................................................................1-3
3.0 Radio Model Information......................................................................................1-4
Chapter 2 MAINTENANCE
1.0 Introduction..........................................................................................................2-1
2.0 Preventive Maintenance ......................................................................................2-1
2.1 Inspection.......................................................................................................2-1
2.2 Cleaning .........................................................................................................2-1
3.0 Safe Handling of CMOS and LDMOS..................................................................2-2
4.0 General Repair Procedures and Techniques.......................................................2-2
5.0 Notes For All Schematics and Circuit Boards......................................................2-5
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Chapter 3 SERVICE AIDS
1.0 Recommended Test Tools...................................................................................3-1
2.0 Test Equipment....................................................................................................3-2
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SAFETY AND GENERAL INFORMATION
Read this information before using your radio.
IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION
The information provided in this document supersedes the general safety information contained in user guides
published prior to July 2000. For information regarding radio use in a hazardous atmosphere please refer to the
Factory Mutual (FM) Approval Manual Supplement or Instruction Card, which is included with radio models that
offer this capability.
RF Operational Characteristics
Your radio/radio product contains a transmitter and a receiver. When it is ON, it receives and transmits radio
frequency(RF) energy.
Exposure To Radio Frequency Energy
Your Motorola radio/radio product is designed to comply with the following national and international standards
and guidelines regarding exposure of human beings to radio frequency electromagnetic energy:
● United States Federal Communications Commission, Code of Federal Regulations; 47 CFR part 2 sub-part J
● American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers (IEEE) C95.
1-1992
● Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition
● National Council on Radiation Protection and Measurements (NCRP) of the United States, Report 86, 1986
● International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998
● National Radiological Protection Board of the United Kingdom 1995
● Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radiofrequency Electromagnetic
Fields in the Frequency Range from 3 kHz to 300 GHz, 1999
● Australian Communications Authority Radiocommunications (Electromagnetic Radiation - Human Exposure)
Standard 1999 (applicable to wireless phones only)
To assure optimal radio/radio product performance and make sure human exposure to radio frequency
electromagnetic energy is within the guidelines set forth in the above standards, always adhere to the following
procedures:
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ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY
NOTE
Facilities
Medical Devices
Pacemakers
Hearing Aids
Nearly every electronic device is susceptible to electromagnetic interference (EMI) if
inadequately shielded, designed, or alternately configured for electromagnetic compatibility.
To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio product in any facility
where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is
sensitive to external RF energy.
The Health Industry Manufacturers Association recommends that a minimum separation of 15 cms be
maintained between a handheld wireless radio product and a pacemaker .These recommendations are consistent
with the independent research by, and recommendations of, Wireless Technology Research.
Persons with pacemakers should:
● ALWAYS k eep the r adio product more than 15 cms from their pacemak er when the r adio product is turned ON.
● not carry the radio product in the breast pocket.
● use the ear opposite the pacemaker to minimize the potential for interference.
● turn the radio product OFF immediately if you have any reason to suspect that interference is taking place.
Some digital wireless radio products may interfere with some hearing aids. In the event of such interference, you
may want to consult your hearing aid manufacturer to discuss alternatives.
vi SAFETY AND GENERAL INFORMATION
Other Medical Devices
If you use any other personal medical device, consult the manufacturer of your device to determine if it is
adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information.
Safety and General
Use While Driving
Check the laws and regulations on the use of radio products in the area where you drive. Always obey them.
When using your radio product while driving, please:
● Give full attention to driving and to the road.
● Use hands-free operation, if available.
● Pull off the road and park before making or answering a call if driving conditions so require.
OPERATIONAL WARNINGS
Vehicles with an air bag
WARNING: Do not place a radio product in the area over an air bag or in the air bag
deployment area. Air bags inflate with great force. If a radio product is placed in the air bag
!
deployment area and the air bag inflates, the radio product ma y be pr opelled with great for ce
and cause serious injury to occupants of vehicle.
Potentially explosive atmospheres
WARNING: Turn off your radio product prior to entering an y area with a potentiall y explosive
atmosphere, unless it is a radio product type especially qualified for use in such areas as
!
"Intrinsically Safe" (for example, Factory Mutual, CSA, or UL Approved). Do not remove,
install, or charge batteries in such areas. Sparks in a potentially explosive atmosphere can
cause an explosion or fire resulting in bodily injury or even death.
Blasting caps and areas
WARNING: To avoid possible interference with b lasting operations, turn off your radio when
you are near electrical blasting caps, in a “
!
“
turn off two-way radio
NOTE
The areas with potentially explosive atmospheres referred to above include fueling areas
such as below decks on boats, fuel or chemical transf er or storage facilities, areas where the
air contains chemicals or particles, such as grain, dust or metal powders, and any other
area where you would normally be ad vised to turn off y our vehicle engine. Areas with potentially explosive atmospheres are often but not always posted.
blasting area
”. Obey all signs and instructions.
” or in areas posted
SAFETY AND GENERAL INFORMATION vii
MOBILE RADIO OPERATION AND EME EXPOSURE
To assure optimal radio performance and that human exposure to radio frequency electromagnetic energy is
within the guidelines referenced earlier in this document, transmit only when people outside the vehicle are at
least the minimum distance away from a properly installed, externally-mounted antenna. Table 1 lists the
minimum distance for several different ranges of rated radio power.
Table 1 Rated Power and Distance
ANTENNA INSTALLATION
Mobile Antennas
Recommended mobile antenna installations are limited to metal body vehicles at the center of the roof and center
of the trunk deck locations.
The antenna installation must additionally be in accordance with:
1. The requirements of the antenna manufacturer/supplier.
2. Instructions in the Radio Installation Manual.
Fixed Site Antennas
Mobile radio equipment is sometimes installed at a fixed location and operated as a control station or as a fixed
unit. In such cases the antenna installation must comply with the following requirements in order to assure
optimal performance and make sure human exposure to radio frequency electromagnetic energy is within the
guidelines set forth in the above standards:
● The antenna must be mounted outside the building
● Mount the antenna on a tower if at all possible
● If the antenna is to be mounted on a building then it must be mounted on the roof.
As with all fixed site antenna installations, it is the responsibility of the licensee to manage the site in accordance
with applicable regulatory requirements and may require additional compliance actions such as site survey
measurements, signage, and site access restrictions in order to insure that exposure limits are not exceeded.
Radiated Power of
Vehicle-installed Mobile
Two-way Radio
7 to 15 Watts 30.5 cm (1 Ft)
16 to 50 Watts 61 cm (2 Ft)
More than 50 Watts 91.5 cm (3 Ft)
Minimum Distance
From T ransmitting
Antenna
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