Hello, Accutect a division of YAMA'S ENTERPRISES,INC at www.yamasinc.com is the place. They had serviced a P-300 for me three years ago.The shop is in Gardena,CA. Tats Yamanashi is the man to ask for.Phone 310-324-7406.Place an e-mail to them, they are very qick with responses.Good Luck,Shawn