There are numerous individuals using Japanese TT's with a 100V Step Down used on the Power Supply.
They will work just fine.
A Variac might also be considered.
Step down transformer for a turntable
Are there any concerns related to the use of a step down transformer on a turntable? I am wondering if the use of the transformer in any way diminishes the sound quality of a turntable? I am considering buying a 100v turntable from Japan for use in USA. Would be an upgrade to my analog side. Let me know your thoughts.