Getting technical support

SECTION FOUR — Troubleshooting and servicing the

You can E-mail the Service Department directly from Northstar’s website (www.northstarnav.com). Here, you also can access additional technical information under either the Manuals link (you can download manuals in PDF form) or Support link.

After you’ve followed the instructions in this manual, if you need addi- tional technical or operations support for the 491, or if you have any other service-related questions, you can contact either your dealer or the Northstar factory. You can reach the Service Department by E-mail, fax, U.S. mail, or phone as described in Table 7 below.

NOTE:	Please have the following items available when you
	contact Northstar.
	• the 491’s serial number, located on the top of
	the unit
	• the transducer manufacturer’s name and the
	transducer’s model and part number

Please be as complete and accurate as possible when describing the prob- lem so that a service technician can research the problem and provide the quickest response.

The Northstar Service Department is available between 9:00 AM and 5:00 PM Eastern Time, Monday through Friday, excluding major holidays.

If you have questions about purchasing parts or ﬁnding an authorized Northstar dealer, or if you want basic product information and brochures, contact the Northstar Sales Department as described in the table below.

Table 7: Contacting Northstar

Email:

Service: service@northstarnav.com

Sales: sales@northstarnav.com

Fax:

Service: 978/897-1595

Sales: 978/897-7241

Telephone:

Main number: 978/897-6600 or 800/ 628-4487

Sales: 978/897-0770

Service: 978/897-6600

U.S. mail:

Northstar

30 Sudbury Road

Acton, MA 01720

Website:

www.northstarnav.com (you can send E-mail to Northstar directly from this site)

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491 INSTALLATION MANUAL Revision A