Xpantastic!

Hello-
I'm trying to service an Xpander with intermittent problems .
The CPU board & power supply board are radically different than what's
described in the service manual;  I'm guessing this is one of the
Japanese units.
Does anyone have documentation for these?  (the "First Edition"
service manual that's available in various places online is only for
the US unit).

Thanks.

~GMM