Help me identify these transducers - 340 Da

[boatrboy]

The DSM could be behind the dash. On my boat it’s under a cockpit seat but it was installed by the prior owner not Sea Ray.

I have everything apart and did a number on my hand (raw fiberglass cuts) pulling the radio control box (which looks like a dsm) out to remove all unnecessary items. Plus the control box had the vhf connector in the back and I needed to pull that anyway.
I have cleaned every inch of the rear cockpit area under the seats so I’m sure it’s not there.
I'm still thinking my boat was not equipped with a dsm. I obviously need to see where the wires on my transducer connect down in the bilge.
I am hoping one of the guys with the same boat and have done this will jump in here.

I just check a manual I found online for the c-80 and it shows the dsm wired to a specific port on the gps which mine was empty. Since I don’t really care about the dsm with a new Garmin gps, I’m still trying to figure out how my vv gets it depth?

 

[DrPringle]

This is what I had in my notes from doing mine hopefully that helps

 

[DrPringle]

This is what I had in my notes from doing mine hopefully that helps
View attachment 158993

 

[dtfeld]

Those transducers are not going to be connected to a DSM. Those are going to be connected to the smart craft system. One is the paddle wheel sensor for Speed thru water, and the other is a depth/temp sensor, that will only display depth and does not have any fishfinder capabilities.

A 3rd transducer would be required to have fishfinder capability.. Do you have a 3rd transducer somewhere in the bilge? With out that other transducer, you probably don’t have a DSM installed.

 

[boatrboy]

Those transducers are not going to be connected to a DSM. Those are going to be connected to the smart craft system. One is the paddle wheel sensor for Speed thru water, and the other is a depth/temp sensor, that will only display depth and does not have any fishfinder capabilities.

A 3rd transducer would be required to have fishfinder capability.. Do you have a 3rd transducer somewhere in the bilge? With out that other transducer, you probably don’t have a DSM installed.

Dt - thanks.

After an hour on the phone with Sea Ray and Mercruiser, it appears as you said, my transducer goes into the engine harness per Mercruiser rep I spoke to. He stated that each engine has one of the sensors reporting to it. This is why it shows up on my vesselview and not my old gps. He told me there are not separate harnesses only the main engine harness plugging directly into my vessel view.

Sea Ray tech told me he was not trained to answer any question regarding my sea ray schematics referring to the tranducer and told me to see my local dealer.

I will need the exact part number so next trip to the boat is to pull the xducer and unplug from motor to measure and decide what’s next.

 

[dtfeld]

Dt - thanks.

After an hour on the phone with Sea Ray and Mercruiser, it appears as you said, my transducer goes into the engine harness per Mercruiser rep I spoke to. He stated that each engine has one of the sensors reporting to it. This is why it shows up on my vesselview and not my old gps. He told me there are not separate harnesses only the main engine harness plugging directly into my vessel view.

Sea Ray tech told me he was not trained to answer any question regarding my sea ray schematics referring to the tranducer and told me to see my local dealer.

I will need the exact part number so next trip to the boat is to pull the xducer and unplug from motor to measure and decide what’s next.

You don't need to pull the transducers unless you plan on servicing them (the paddle wheel is replacable). Just follow the wire and you will come across a white tag with dot matrix printing. Typically SR bunched up the excess somewhere, that while pain to get to is accessible. That will have the part number.