Yamaha Pro Yamaha DGX-660B 业主指南

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页码 155
Setting Up
DGX-660  Owner’s Manual
19
Set
ting Up
Setting the Volume
To adjust the volume level of the entire keyboard 
sound, use the MASTER VOLUME control located at 
the left of the panel. Play the keyboard to actually pro-
duce sound while you adjusting the volume to the 
desired level.
Intelligent Acoustic Control (IAC)
IAC is a function which automatically adjusts and 
controls the sound quality according to the overall 
volume of the instrument. Even when the volume is 
low, it permits both low sounds and high sounds to be 
clearly heard. For details, refer to page 59.
Auto Power Off Function
To prevent unnecessary power consumption, this 
instrument features an Auto Power Off function that 
automatically turns the power off if the instrument is 
not operated for a specified period of time. The 
amount of time that will elapse before the power is 
automatically turned off is set by default to 30 min-
utes.
To disable the Auto Power Off function:
Turn off the power, then press the [
] (Standby/On) 
switch to turn on the power while holding down the 
lowest key. Make sure to hold down lowest key until a 
message appears at the top left of the display after 
pressing the power switch.
To set the time that elapses before Auto Power Off 
is executed:
Press the [FUNCTION] button, press the CATE-
GORY [
r] or [f] button several times until “Auto 
Power Off” appears, then select the desired value by 
using the dial.
Settings: OFF, 5, 10, 15, 30, 60, 120 (min.)
Default value: 30 min.
• Do not use the instrument 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.
CAUTION
• The recorded Song will be lost if the power is automatically 
turned off without executing the save operation. Make sure 
to save your recorded Song before the power turns off.
• Depending on the instrument status, the power may not 
turn off automatically, even after the elapse of the specified 
period of time. Always turn off the power manually when 
the instrument is not in use.
• When the instrument is not operated for a specified period 
of time while connected to an external device such as an 
amplifier, speaker or computer, make sure to follow the 
instructions in the Owner’s Manual to turn off the power to 
the instrument and the connected devices, in order to pro-
tect the devices from damage. If you do not want the 
power to turn off automatically when a device is con-
nected, disable Auto Power Off. 
NOTICE