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Old 05-13-2019, 12:58 PM   #1
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Transducer troubleshooting

My Garmin chart plotter is showing error messages about the transducer not being connected. The boat was hauled out in December and the bottom was cleaned. There is some growth on the hull, but not significant.
The Garmin functions fine and it has the latest software installed.
How do I troubleshoot this connection problem?
I will attach some photos.
Thanks.
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Old 05-13-2019, 01:00 PM   #2
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Old 05-13-2019, 03:28 PM   #3
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Itís not clear from the 2nd photo where the transducer cable connects to the unit.
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Old 05-13-2019, 03:29 PM   #4
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Quote:
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It’s not clear from the 2nd photo where the transducer cable connects to the unit.
The blue connector. 8 pin sonar.
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Old 05-13-2019, 03:40 PM   #5
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How is the voltage going into the unit? Sometimes this is a low voltage issue. Thatís low hanging fruit thatís easy to check with a multi meter. If that checks out ok, then there is probably a multimeter test on the transducer cable connector that can test for continuity issues. Others on the forum could advise.
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Old 05-13-2019, 03:44 PM   #6
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There was some discussion on this topic here:
Testing a depth transducer
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Old 05-13-2019, 05:22 PM   #7
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Originally Posted by JDCAVE View Post
There was some discussion on this topic here:
Testing a depth transducer


I have read it. Good info.
The end of the story is interesting though. I am close to a navy yard, but I will do the wire tests first.
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