Quoted from MAJRob:
Thanks much kingpingames! Yep I checked with JJP and they are configured to work with the 110 by 50MHz versus 110 by 60 MHz here stateside.
Great call sed6 about the MWR-will check with Camp Zama about 90 minutes away
The US is 120 volts at 60 Hertz, Japan is 100 volts and either 50 or 60 Hertz depending on your location.