SeaTalk Bus 12vdc Fuse ?

[callistov42]

I have a Robertson autopilot and Raymarine GPS sensor, E-80 and old ST 50 instruments running on a Sea Talk bus. Today I changed out the non-functioning Sea Talk to NMEA 183 interface board with a spare that I had on board. I duplicated the wiring set up exactly but when I started the system up I had lost all Sea Talk information. The instruments are not up. No GPS signal to the E-80. The Sea Talk bus is not getting 12v power. Is there a fuse in that system separate from the breaker? Ay ideas where it might be? Any ideas what has occurred?

[r.furborough]

There could be a fuse, then again there may not, it depends on the person who wired the system. A seatch of the SeaTalk cabling should not take too long. The only other fuse in a SeaTalk system I am aware of would be in the autopilot, but as you have a Robertson unit we can exclude that.

You will have to take a methodical approach to trouble-shooting to determin where the power originally was sourced. Of course, you could also introduce an alternate 12V supply to the SeaTalk system.

[goboatingnow]

its quite common that (a) thers a hidden in line fuse or one of teh connectors hiddenn somewhere has patially disconnected.

Do like me hunt down and remove all inline fuses. nasty things shouldnt be ona boat.

Dave

[Sheriff]

bad idea to remove fuses from instruments.if there is a spike or problem for the fuse to blow its better to find the problem than replace all your equipment. I had a customer who did that who now has to replace his ssb and power supply