Hola!
Just got my ez eg today from japan, second hand!
First thing I noticed is problems with the electricity. This should be eazy to fix, probably just need to work the cable soldering inside?
It want run on batteries at all, ive tried with two different sets. And when using a multi power suply it runs fine, but just the slightest movement shuts it of.. So eighter its bad conection somewhere, or I realy need the yamaha power suply that they recomend on the backside of the instrument..
Kim
Battery Life
When I got mine I put batteries in and it worked fine. Only for about 6 hours though! Maybe even less...
I use a generic power adapter and the connection is OK - maybe you just need to get a power adapter which has multiple "ends" - then you can swap them around until you find best fit.
The Yamaha power adapter is only about 5 quid though I suppose... :)