Yamamoto A-08S Repair

Does anybody here know who in the USA can repair/troubleshoot a Yamamoto Soundcraft A-08S amplifier? I went to Venus Hifi's site, but see they are no longer in business. I'd hate to have to ship this amplifier to Japan. Any info would be greatly appreciated. Thanks much.
The authorized Yamamoto repair place in the US was in Bloomington Indiana. But I can't seem to find the name of it or the guy's phone number. Maybe an e-mail to Yamamoto in Japan to see if they know the name, or can put you in touch with the guy who ran Venus? Or you could also contact the Canadian Yamamoto distributor. If you find the contact info for the guy in Bloomington, please pass that info along here.