Installation manual

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4.2 Troubleshooting
In the unlikely event that you encounter problems using your ST70 pilot head, use this
section to resolve the situation.
First considerations
If your ST70 is not performing as you think it should, be sure you are operating
correctly as described in the ST70 Pilot Controller User Reference Guide, supplied
with the pilot head.
Then:
Ensure that any data you think may be missing, is available on your boat. For
example, if you do not have a wind transducer, then there will be no w
ind-related
data.
Take into account any changes that may have been made to the electrical system
aboard your boat. Such changes could affect the performance of your ST70 pilot
head.
Be aware that radio signals transmitted nearby (for example from another boat or
shore station) could affect the performance of your ST70 pilot head.
If you are satisfied that the problem is not due to any of the above, use the procedures
in this section to isolate the cause of the problem.
Procedures
If an ST70 pilot head appears not to be operating satisfactorily, check the symptoms
below to determine how to resolve the problem:
Nothing on the pilot head screen - refer to Figure 4-1 on page 29
Data missing from the pilot head screen - refer to Figure 4-2 on page 30
Data on the pilot head screen is garbled- refer to Figure 4-3 on page 31
Specific data types are missing or incorrect:
Check the relevant Transducer and Pod, including connections between them
and to the system.
If speed readings are missing or obviously wrong, the speed transducer pad-
dle wheel could be fouled and need cleaning.
81287_1.book Page 28 Tuesday, March 18, 2008 11:50 AM