Hi all- so i went on the water the other day and my 2d sonar wasn’t working on my console graph nor was my depth reading on my 1198( i know it’s a dinosaur). However, side imaging and Di was working, and when i switched it over to the bow ducer it worked fine. So I’m thinking it’s not a unit issue. Could this be a wiring issue or a bad thru hull ducer or regular ducer issue? And Anything else i can do to problem solve this? Any help would be appreciated. Thanks