3MAINTENANCE & TROUBLESHOOTING
3.1Maintenance
Regular maintenance is important to maintain intended performance over a long period. Regularly check the following:
•Clean the component with a soft cloth. Do not use chemical cleaners; they can remove paint and markings.
•Make sure all connections are tight.
•Check the ground terminal for corrosion. Clean if necessary.
3.2Troubleshooting
The table below provides simple troubleshooting procedures which the user can follow to re- store normal operation. If normal operation cannot be restored do not check inside the equip- ment; there are no
Symptom |
| Remedy |
|
|
|
Unit cannot be powered. | • | Check power connector. |
| • Check the ship's mains. | |
|
|
|
LEDs do not light. | • | Check power connector. |
| • Do the diagnostic test. | |
|
| (Refer to the next page.) |
|
|
|
Heading data error. | • | Do the |
|
| (Refer to the next page.) |
|
|
|
The heading data is not output to | • | Check connections. |
external equipment. | • Do the diagnostic test. | |
|
| (Refer to the next page.) |
|
|
|
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