Table of Contents
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SECTION ONE Introduction
Who should read
this manual
Scope of this
manual
Installation
considerations
Page 2
This manual is for marine technicians who are installing the
Northstar 490 and connecting it with the Northstar 961/962
processor or Northstar 957/958, and a transducer.
In this manual, you'll find information about the following:
•
mounting and wiring the 490
•
connecting the 490 to the Northstar 961/962 or 957/958
•
installing a transducer (an overview is provided, but for
such details as wiring, see the documentation provided by
the transducer's manufacturer)
•
connecting the 490 to a transducer (see also the
Transducer Connector Instructions—GM492)
•
troubleshooting and testing the system
•
technical specifications for the 490
For information about obtaining technical support and
returning the 490 for factory service, see "SECTION FOUR
Troubleshooting and servicing the 490" beginning on page 23.
For details about operating the 490 using the 961/962 or 957/
958, see the Northstar 490 Echo Sounder Operations Manual
(GM490).
CAUTION!
The following list of installation considerations isn't
a substitute for all the details in Section Three. To
ensure that you meet all critical installation
parameters, be sure to read that entire section and
follow all of its recommendations.
1.
Check the shipping carton for any damage, and
immediately report any damage to the carrier. Save all
packing material in case you have to return the 490 to
the factory for repair or evaluation.
2.
Unpack the carton, and check its contents. You should
have received:
490 INSTALLATION MANUAL, Revision B2
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