SECTION FOUR — Troubleshooting and servicing the
Returning a 491 for service
Before returning the 491 to the factory, to prevent delays it is critical that you first obtain a Return Materials Authorization (RMA) number from the Northstar Service Department. If the 491 was purchased through a dealer, call the dealer with the 491 serial number so they can help you get an RMA number. The 491’s serial number can be found on the label at the top of the 491.
Shipments without a proper RMA number will not be accepted!
If you have overnight or
The 491 should be shipped only in a properly designed carton with pack- ing material. Shipments to the Northstar factory should be made to the following address:
Northstar
Service Department
30 Sudbury Road
Acton, MA 01720 USA
NOTE: | Return the transducer to its manufacturer, not to |
| Northstar. |
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PAGE 26 | 491 INSTALLATION MANUAL Revision A |
