I have had this unit for 8+yrs, and just recently the display is very intermittent when I have the sonar display up. It will show depth but the actual sonar display sometimes works and other times doesnt. The down imaging always works if I have that display up and the gps/map display always works, its just the sonar display that is intermittant. All pins and connections look good, anyone else seen this before? wondering if its just failing and time to upgrade?
Humminbird 597 ci HD – Sonar Issues
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