Raytheon L470 Outrage 18

Electrical and electronic topics for small boats
Redmanf1
Posts: 19
Joined: Sat Jul 09, 2016 12:02 pm

Raytheon L470 Outrage 18

Postby Redmanf1 » Tue Aug 28, 2018 4:01 am

Looking for some help with a Raytheon L470 fishfinder. Everything works on it except the speed, it did work one day and quick. I checked the speedo wheel and it spins freely. It looks to be some sort of infrared that the wheel spins in front of. Any help would be appreciated.

Thanks
Nelson

jimh
Posts: 5339
Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula
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Re: Raytheon L470 Outrage 18

Postby jimh » Fri Aug 31, 2018 5:27 pm

A paddle wheel speed sensor usually works on the principal of a moving magnet inducing a current into a stationary coil. I don’t recall any use of infrared light.

Redmanf1
Posts: 19
Joined: Sat Jul 09, 2016 12:02 pm

Re: Raytheon L470 Outrage 18

Postby Redmanf1 » Fri Aug 31, 2018 9:02 pm

Maybe the magnet has lost some of it properties and the sensor picks up sporadically. It worked for a while today then quick..

Thank you for the reply Jim