Originally Posted by Leegauge
I came across this thread via a google search. My ST4000 has the exact symptoms as listed in DrB's thread. Was there a solution?
I called Raymarine and the told me to send the unit in and they would test and evaluate. If it was fixable, they would tell me how much and if I authorized it, fix. It turned out that my CPU board was shot.
The replaced and charged me $275. They had it turned around in under 4 days. However, I live pretty close to their service center in New Hampshire.
CaptainDan99 I believe also can fix these things, and may be able to do it at a lower cost, but since Raymarine is so close, I gave them first shot. You could PM CaptainDan99 and see what his cost would be if you had to replace the CPU board. $275 included the shipping back to me also.