Roland System 100m

I traded in for a 100M yesterday -- used -- and it's in the shop now with my Roland tech 
(he worked in Roland Japan, early 80's)  just to be checked out to make sure all OK.

The fellow I bought it from had it running on US voltage  -- but the fellow at the shop said 
he couldn't check it, as it was a Japanese model -- he needed a converter, he said.

I called the fellow I bought it from and he said not to worry -- that 10V difference 
(supposedly Japanese power is 100V, ours is 110V) wouldn't hurt.  He said it worked fine 
(and it did seem to on my cursory tour -- but this is the one that only had 2 module 
cables -- the ones in the back -- so I couldn't test it out fully.  But the fellow is local, 
knows his stuff, so I trust him).

I also called a friend of mine with a 100M -- his is a Japanese model and he runs it 
(without problems) on 110V -- he said it was OK to run a JP model on US current.

So, I won't know what the status of any of this is until next week, when my tech checks it 
out -- but should I be OK?  In general, is it OK to run Japanese models on US current?  If 
no, please make the caveats mild, as I'm already slightly stressed about this -- 

Also, if I need a converter, any one that anyone would recommend?

Best

Robert

>In general, is it OK to run Japanese models on US current?  If
>no, please make the caveats mild, as I'm already slightly stressed about this

In general, yes it is OK. I have a japanese 100m (and several other 
japanese synths) and have been running them on 110V for years. The 
internal regulator merely has to dissipate slightly more power, but 
not enough to warrant concern. But don't try this with 220V.