My DS45 stopped working suddenly about 2 weeks ago (was working one minute and then it was the two dashes). I was in pretty turbulent water
at the time (motoring against a 4kt+ current) so its possible that it went to the "dashes" mode because of "aerated water" and then just didn't reset.
Anyway, I'm trying to determine if it is the instrument, the cable, or the transducer
. How did you determine transducer
? By plugging in a known good instrument? And do you know where I could find a known good DS45 instrument?