No, No, Interior lighting uses standard switches. Standard breaker panels; however, all the exterior electrical systems including nav lights, cockpit lights, horns and even trim tabs in some cases are controlled by a "soft touch" electronic relay system. The problem is that if the electronics in this system goes bad, you are dead in the water. The keypads just blink on and off when you have a problem. There is no manual override and the only fix, is to replace the faulty component.
The system is not made by Sea Ray though I can't recall the name of the company the does make them. I have this system on my '05 340 and HATE it. Every time I want to make an electrical modification, it's a real PIA.
Sea Ray was very quick to replace all my modules when I had a failure and I have not had a problem since. I will say that the modules are very picky about clean power and the correct voltage. Your friend should have the dealer check the voltage when all is operating. They may find an under voltage coming from somewhere.
To Sea Ray's credit, they are slowly moving away from the touchpad system. Customer feedback has not been very good.
My next boat, (an 07 Sea Ray 48 dancer) WILL NOT have them. I would much rather have traditional mechanical switches than the electronic crap I have now.
Now, that said, on the new "touch screen" system that Sea Ray has begun to use on some of the larger yachts is a little better thought out. If any of the components fail, there are mechanical switch overrides so that one can turn on any circuit in the event of an electronic or touch screen failure. The concept behind this system is that they use Ethernet to run to “mini” touch pads and mechanical electronic switches all over the vessel. So, it becomes plug-and-play. The whole electrical distro system is basically a network. You can daisy chain modules together and each module has a built in bypass in the event of a module failure.
The concept of this system is that the Ethernet is less expensive since it cuts down on the standard copper required and safer to run. The system can be custom programmed to do what you want. It offers one touch-n-go functionality. Go to your boat, touch 1 button and your batteries are on, blower starts, and any system that you want to turn on, does. Plus, you can control any system from anywhere in the boat and all the lighting is dimmable.
So far, I have heard no one complain about the system or of any failures, however the system is new and who knows what evil lurks in the technology controls. Time will tell I guess.