Yamaha DDK-7 Manual Do Utilizador

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DDK-7 Owner’s Manual

• Do not place the instrument against a wall (allow at least 3 cm/one-inch from 

the wall), since this can cause inadequate air circulation, and possibly result in 
the instrument overheating.

• Before connecting the instrument to other electronic components, turn off the 

power for all components. Before turning the power on or off for all 
components, set all volume levels to minimum. Also, be sure to set the volumes 
of all components at their minimum levels and gradually raise the volume 
controls while playing the instrument to set the desired listening level.

• When cleaning the instrument, use a soft, dry cloth. Do not use paint thinners, 

solvents, cleaning fluids, or chemical-impregnated wiping cloths.

• Do not insert a finger or hand in any gaps on the instrument. 

• Never insert or drop paper, metallic, or other objects into the gaps on the panel 

or keyboard. If this happens, turn off the power immediately and unplug the 
power cord from the AC outlet. Then have the instrument inspected by qualified 
Yamaha service personnel. 

• Do not place vinyl, plastic or rubber objects on the instrument, since this might 

discolor the panel or keyboard.

• Do not rest your weight on, or place heavy objects on the instrument, and do not 

use excessive force on the buttons, switches or connectors.

• Do not use the instrument/device or headphones for a long period of time at a 

high or uncomfortable volume level, since this can cause permanent hearing 
loss. If you experience any hearing loss or ringing in the ears, consult a 
physician.

• Always save data to a USB flash memory or other external media, in order to 

help prevent the loss of important data due to a malfunction or user operating 
error.

• To protect against data loss through media damage, we recommend that you 

save your important data onto two external media.

Yamaha cannot be held responsible for damage caused by improper use or 
modifications to the instrument, or data that is lost or destroyed. 

Always turn the power off when the instrument is not in use. 

The serial number of this product may be found on the bottom 
of the unit. You should note this serial number in the space 
provided below and retain this manual as a permanent record 
of your purchase to aid identification in the event of theft.

DDK-7

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