YAMAHA DDK-7 OWNER'S MANUAL(2)
User Manual
This document is the owner's manual for B-11 1/2 2 DDK-7, which describes the precautions to be taken when using the product, including using the correct voltage, periodically checking the electric plug, using the supplied power cord/plug, avoiding damage to the power cord, not opening or modifying the internal parts of the instrument, avoiding exposure to water or wet conditions, not inserting or removing electric plugs with wet hands, and not placing burning items on the unit. If a malfunction occurs, discontinue use immediately and have it inspected by qualified Yamaha service personnel.