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-   -   Raymarine Seatalk failure (http://www.sailnet.com/forums/electronics/59001-raymarine-seatalk-failure.html)

catnap892 10-17-2009 04:16 PM

Raymarine Seatalk failure
 
About two months ago, we were hit with a nearby lightening strike that disabled my Raymarine st40 Wind and close hauled instrument and gave me a Seatalk failure on the st4000 wheel autopilot. For the Wind, I replaced the masthead as well as the instrument panel unit with a st60+ unit but the auto pilot still read seatalk failure. I sent the autohelm instrument to Raymarine and they sent it back, 6 weeks later and $200.00 later, but it still will not function and still reads seatalk failure. Any suggestions? I don't have much faith in the Raymarine factory techs, as their standard answer is send it back to us.

brak 10-17-2009 05:17 PM

It could be the autopilot itself, I suppose.

negrini 10-18-2009 11:27 AM

Have you checked cables ? Is it possible to have it melted ? Check for simp-ly continuity ....

Cruisingdad 10-19-2009 12:51 PM

Quote:

Originally Posted by catnap892 (Post 533082)
About two months ago, we were hit with a nearby lightening strike that disabled my Raymarine st40 Wind and close hauled instrument and gave me a Seatalk failure on the st4000 wheel autopilot. For the Wind, I replaced the masthead as well as the instrument panel unit with a st60+ unit but the auto pilot still read seatalk failure. I sent the autohelm instrument to Raymarine and they sent it back, 6 weeks later and $200.00 later, but it still will not function and still reads seatalk failure. Any suggestions? I don't have much faith in the Raymarine factory techs, as their standard answer is send it back to us.

Try cleaning the connectins. If there is not a good connection with one of the HSBs (anywhere in the daisy chain) it will caluse a failure of almost the entire system. I had some corrosion on one terminal once and it caused really wierd failures. I think you have a wiring issue... just my guess.

I use a piece of wire inside the HSB cables. wiggle them all and make sure you push them in hard.

Again, from the limited description, this is my guess.

- CD

bobwebster 10-29-2009 11:09 PM

Make sure the seatalk is getting power. It may be coming from your autopilot, which probably has an internal 5-amp fuse that powers the seatalk. The red seatalk wire should be 12v+.

Also, you can try disconnecting seatalk instruments on the boat one at a time until it starts working.

BELLATRIX1965 11-08-2009 09:17 PM

SEATALK weak link?
 
Quote:

Originally Posted by bobwebster (Post 536783)
Make sure the seatalk is getting power. It may be coming from your autopilot, which probably has an internal 5-amp fuse that powers the seatalk. The red seatalk wire should be 12v+.

Also, you can try disconnecting seatalk instruments on the boat one at a time until it starts working.

Yes, bobwebster is on the right tack! - I have had similar problems with my ST60 - RAYMARINE advised me to check the SEATALK system by changing the backlighting on one connected instrument. If the backlighting doesn't change on ALL connected instruments when you change the one, there is a problem. Disconnect instruments one at a time, repeat the backlight test until you have eliminated the problem instrument (when you disconnect the bad one, changing backlight setting on one of the remaining will change backlight on all other connected instruments). Let us know what you find!


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