Raytheon Fishfinder transducer problem

[Eddie E]

I bought a used 24' boat 4 years ago and I had a Raytheon L365 Fishfinder
installed with a transom mounted transducer. That setup work very good. I
purchased a new 21' boat 3 years ago. I asked the dealer to install a the
same Raytheon fishfinder but they install a L265 with a in the hull
transducer. For the last 3 seasons I have had constant problem with false
readings on the L265. For example I could be in 80' of water but it would
indicate that I was in 3' and sound the shallow water alarm. I decided I do
not want to deal with that for another season. I believe the tranducer is
the problem. In an attempt to save money on buying and installing a new
fishfinder system, can I just switch to a transom mounted transducer
connected to my L265 Fishfinder? I would appreciate any other suggestions.

Thanks, Eddie

 

[William G. Andersen]

Yes, you can use a transom mounted transducer. I have a L265 and it came
with a transom mounted transducer.
I was getting a lot of the same kind of false readings and just accepted
them, thinking air bubbles were on the transducer, etc. My friend removed
the fish finder one day, thinking I didn't leave it in my bow rider while it
was parked in storage. (I do.) When I went to mount it the next day, one of
the 12 volt pins was bent. Trying to straighten it, I broke it. For $45,
Raytheon replaced the card the pins are soldered to and they also replaced
the touch pad. It works like new! So, it may be the 12 volt power
connection.

 

[SB]

In your case I'd more likely say that the bent power pin was preventing the
rest of the pins from getting a good seal (no walrus jokes!).

Definately check you rconnection....maybe noise was getting in there
(shouldn't being a DC system though...hmm...)

 

[Eddie E]

Thanks for the replies. I'll check all of the connections first to see if
there are bent pins or something. If I don't see an obvious problem I'll
probably search for a new transducer. I want to do it while the boat is out
of the water. Once I put it in my slip it will be there until November.

Eddie