Raymarine C70 Lost the Plot?

[AndyPandy]

Please can anyone offer me advice?

I have a C70 linked to a Raymarine Autopilot and they dont seem to know which direction they are going. The bearing on the Auto stays at around 335, even if I do a slow 360 it just moves 1 or 2 degrees.

Has anyone come across this before and if so, what was the resolution?

Thanks for any advice,

Andy

 

[Maxi_10]

I had a similar problem at the start of the year.

I have ST6001 autopilot and fluxgate compass plus an older Chartploter 70 CRC (I think)

the heading on the autopilot would stick as you describe, although it was OK for the first 1 hour of use, the autopilot didnt work as it was always trying to correct the direction. Also the chartplotter showed the boat Icon pointing the wrong way on the screen.

1st thing I checked was the fluxgate compass, there is a page on the Raymarine website that gives simple checks with a meter - all was OK - the website then suggested taking the control computer to an agent.

Greenham Regis Poole, were excellent spotted the problem straight away. It was a known fault on some batches. A Capacitor was the wrong way round on the circuit board. They sent it away and fixed it in about 10 days.

Despite being 5 years old they paid a large proportion of the cost. All works fine now.

hope this helps.

 

[spannerman]

The fault is most likely the course computer, we had one last month with the same symptons, it is repairable but our customer opted for an upgrade to the new SPX with inbuilt rate gyro and said he was 100% satisfied with its performance over the old unit.

 

[RCGrootveld]

Interesting info .....
My compass sometimes gives 40-50 Degr errors. Last weekend I did the calibration circle and line-up, it worked OK for approx 1 hour and than ..... Later, I did the line-up again and it worked ok for the rest of the day.

I have a C80, connected to a S2G Corepack and a ST 6002 control.