Chapter 1 Introduction
1.1 Notations Used in This Manual
Throughout the text in this publication, you will notice the use of warnings, cautions, and notes.
These notations are used to emphasize that safety hazards exist, and care must be taken and
observed.
NOTE: The Note notation indicates an operational procedure, practice, or condition that is essential
to emphasize.
1.2 General
This manual includes all the information necessary to maintain peak product performance and
maximum working time. This detailed level of service (component-level) is typical of some service
centers, self-maintained customers, and distributors.
Use this manual in conjunction with the ASTRO Digital XTL 1500 VHF/UHF Range 1/UHF Range 2/
700–800 MHz Mobile Radio Basic Service Manual (Motorola part number 6815854H01), which helps
in troubleshooting a problem to a particular board.
Conduct the basic performance checks first to verify the need to analyze the radio and help pinpoint
the functional problem area. In addition, you will become familiar with the radio test mode of
operation which is a helpful tool. If any basic receiver or transmitter parameters fail to be met, the
radio should be aligned using the radio alignment procedure described in the ASTRO Digital
XTL 1500 VHF/UHF Range 1/UHF Range 2/700–800 MHz Mobile Radio Basic Service Manual.
CAUTION indicates a potentially hazardous situation which, if
not avoided, might
result in equipment damage.
WARNING indicates a potentially hazardous situation
which, if not avoided, could
result in death or injury.
DANGER indicates an imminently hazardous
situation which, if not avoided, will
result in death or
injury.
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C a u t i o n
D A N G E R
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