Raymarine 90 and 120 wide screen plotters

[dj43]

Hi all
Need a bit of help advise , been out and about on the boat last couple of days, and having trouble with both

raymarine plotters,

, boat will not follow a cause , auto pilot ok in manual mode, on screen the boat icon does not face the correct

way round, tried a few things in the menu and shutting down / restarting , turned off external Gps tried on internal both

ways are picking up signals , drove the boat in circles to try and bring back on line stays the same.

Any advice most welcome

 

[Whitelighter]

When on auto manual, does the AP screen heading match the compass heading of the boat?

Also, are your screen connected to a Seatalk network compass or are they just relying on GPS data to define boat direction?

 

[mcanderson]

My rudder transducer once failed and this resulted in a complete failure of the autopilot. Can you see the correct indications on your AP screen for rudder deflection?

 

[dj43]

Thanks for the replys

Auto pilot and plotter headings were not as compass, have reset auto pilot heading to match compass, this has

changed plotter heading , hoping that this will resolve problem , should I also carry out re swinging the auto pilot,

Will not be able to sea trial untill next visit to boat, up untill this weekend system had been working perfectly , any

idea,s as to why the auto pilot heading had changed.