Motorola Gp328plus Gp338plus Gp338xls Detailed 6804112j28 G Manual

GP328 Plus/GP338 Plus/GP338 XLS
Portable Radios
Detailed Service Manual
6804112J28-G
December, 2004 

Computer Software Copyrights
The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semi-
conductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclu-
sive 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...

2000, 2001, 2002, 2003, 2004 by Motorola, Inc.
Motorola Technology Sdn. Bhd. (Co. No. 455657-H)
Plot 2, Bayan Lepas Technoplex Industrial Park,
Mukim 12, S.W.D.,
11900 Penang, Malaysia
Printed in Malaysia
December, 2004 

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DOCUMENT HISTORY
The following major changes have been implemented in this manual since the previous edition:
EditionDescriptionDate
6804112J28-OInitial editionSept. 2000
6804112J28-AUpdated Safety Information (June 2001).
Updated controller board for VHF and UHF Band 1.
Updated RF board for VHF and UHF Band 2.
Aug. 2001
6804112J28-BAdded Display Model (GP338 Plus) information.Sept, 2001
6804112J28-CSection 5A, 5B, 5C and 5D:
Added new board diagrams, schematics and parts 
lists to VHF, UHF Band 1, UHF...

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Safety Information
Product Safety and RF Energy Exposure for Portable Two-Way Radios
The information provided in this document supersedes the general safety information published 
prior to February 2002.
RF Energy Exposure Awareness and Control Information and 
Operational Instructions for Occupational Use
NOTICE: This radio is intended for use in occupational/controlled conditions where users 
have full knowledge of their exposure and can exercise control over their exposure 
to meet the...

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has a RF exposure product label. Also, your Motorola user manual, or separate safety booklet 
includes information and operating instructions required to control your RF exposure and to satisfy 
compliance requirements.
Compliance with RF Exposure Standards
Your Motorola two-way radio is designed and tested to comply with a number of national and 
International standards and guidelines (listed below) for human exposure to radio frequency 
electromagnetic energy. This radio complies with the IEEE (FCC)...

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•Hold the radio in a vertical position in front of the face with the microphone (and 
other parts of the radio including the antenna) at least one inch (2.5 centimeters) 
away from the nose or lips.
• Antenna should be kept away from the eye. Keeping the radio at a proper distance 
is important since RF exposures decrease with increasing distance from the 
antenna.
• When worn on the body, always place the radio in a Motorola-approved clip, holder, holster, 
case, or body harness for this product....

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• Not carry the radio in the breast pocket.
• Use the ear opposite the pacemaker to minimize the potential for interference.
• Turn the radio OFF immediately if there is any reason to suspect that interference is taking place.
Hearing Aids
Some digital wireless radios may interfere with some hearing aids. In the event of such interference, 
you may want to consult your hearing aid manufacturer to discuss alternatives.
Other Medical Devices
If you use any other personal medical device, consult the...