[CA] ES128 transducer issue?

[rltrbill]

So a little more info here. I got a new transducer and hooked it up (boat on trailer) - just plugged in and over the side, not “installed”. The temp is the same-48degrees. The boat is also rigged with a DSM300 so I was thinking maybe that transducer was producing the temp? I pulled the fuse to the DSM and the temp seemed to correct itself. It worked with the old and new transducer. So-I wonder, could the data for temp be being pulled from the DSM and not the internal machine with the cpt100? Is there a way to check/change the data source for that? Could the P66 be bad and that is where the data is coming from? Does the MFD always pull temp data from the transducer plugged directly into it? The bottom reads fine with the P66.

Could it be that the DSM is somehow interfering with the downvision transducer and causing these issues?