Anyone know if CD decks bought in the US will work okay in Japan?

Question

The power supply label on the unit is AC 115v/230-240v and 60/50Hz Power Consumption is 20 Watts. Japan's only 100v right? So plugging them in Tokyo won't fry them, right?

Answer 1

Yes, Japan uses 100v, 50/60Hz.  From what you have listed the CD deck has a dual voltage rating and should work just fine so long as you get an AC plug adapter to allow you to plug it into an outlet in Japan.