I have a Raymarine radar unit that is connected to an RL-70 chartplotter/radar display. It was working last year, but this year shows me an error on startup saying that the scanner is not responding. I am located in New Hampshire on the seacoast and am seeking someone that is familiar with and might be able to repair these older systems (the boat is a 2000 model, so the electronics must be around the same age). Raymarine service simply tells me that they don't support my equipment any longer and then hangs up. Please let me know if you know of anyone that might be able to help.