ST50 Backlighting Troubleshooting Question

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Rick D

Rick D

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Jun 14, 2008
7,204
Hunter Legend 40.5 Shoreline Marina Long Beach CA
I have 4 chained ST50 instruments. The backlighting on two of them will fail pretty regularly. By that I mean it turns off. It can be turned on normally when it does that. (Recall that the ST50 backlighting can be started via any one of the chained instruments.) Raymarine said it sounded like a voltage drop. I checked the fuse panel and found a terminal screw loose. However, it does not appear to be it. The connections on the Seatalk backbone are so small I don't see how I can clean them up. Any ideas? *o Rick D.
 
C

Calif. Ted

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Jun 8, 2004
3,011
Catalina 320 Dana Point
Maybe just try hitting all the contacts with some

electrical contact cleaner from an aerosol (maybe even the Seatalk plugs too) Rick, can't hurt (I think).
 
Mike B

Mike B

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Apr 15, 2007
1,013
Beneteau 43 Baltimore, MD
Reseat all the P/Js

Another thing to is to reseat all the Plug/Jacks. Sometimes you'll get oxidation on their surfaces, reseating can clean that off.
 
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