Actually, got a few more details about the defect - aparently the power
board has a bad 70 volt line. Any ideas what that means, if it can be
fixed or do I need a completely new power board? If there is need for a
new power board what is the best route to get one - through the
manufacturer (they do not support the model anymore), parts dealer etc?
any concrete suggestions?

Thanks a lot guys,
Sergiu