Yesterday, i plugged in my Nord Electro 2 at a gig and the first 10 minutes is was fine. But then my Nord start to flip, light blinking, weird light combinations and a letter L on the display. Then i quickly turned it off. I tried other power outlet, but then its gone flipping again. Sometimes it even won't go on, and the other times weird blinking. I had something before, long long time ago, but after a couple of on/off it suddenly worked (but with strange sounds).
the thing is, the two times it did this, the powersuplly for the gigs was arranged through this kind of things:
http://www.popschoolmaastricht.nl/image ... estoel.jpg
I really think the power, not stable, fluctuations maybe or something like that, may be the problem. Every other instruments (a lot) DID work however.
When i cam home, i plugged in at home and it did work. Big relief. I went to sleep en today same problem at home. Conclusion, something is terribly wrong here.
What can i do? Could it be a fuse problem? (noticed the fuse thing at the back? Anyone has had this before? I could really use some reactions (nearly crying

Thanks! greetings from Holland
UPDATE: It now only displays E.7 and then rd on starting up. The piano is blocked at rd.