Korg Concert C-1500 Owner's Manual page 12

KORG products are manufactured under strict specifications and voltages required by
each country. These products are warranted by the KORG distributor only in each
country. Any KORG product not sold with a warranty card or carrying a serial number
disqualifies the product sold from the manufacturer's/distributor's warranty and liability.
This requirement is for your own protection and safety.
KORG INC.
15 - 12, Shimotakaido 1 - chome, Suginami-ku, Tokyo, Japan.
 1999 KORG Inc.
NOTICE
1212 GH Printed in Japan