Turning The Power On; Turning The Power Off; Setting The Auto Power Off Function; Connecting Headphones - Yamaha CK88 Owner's Manual

Setting up
 Remaining battery power indication
Indication Description
Indicates that the remaining power is sufficient.
Indicates that the remaining power is insufficient
for operation. The built-in speakers will be turned
off after this indication is shown. Save the settings
you are editing and replace all the batteries with
new ones.

Turning the power on

Turning the power off

Make sure the volume settings of the CK and external
devices such as powered speakers are turned down to
the minimum before turning the power on. When
connecting the CK to monitor speakers, turn on the
power switch on each device in the following order.
 Turning on
Turn the [MASTER VOLUME] slider of the CK to its
minimum  set the [P] (STANDBY/ON) switch to
on (O).  turn the amplifier or speaker power on.
 Turning off
Turn the [MASTER VOLUME] slider of the CK to its
minimum  turn the amplifier or speaker power off 
set the [P] (STANDBY/ON) switch to standby (N).
Setting the Auto Power Off
function
The Auto Power Off function automatically turns off the
CK after 30 minutes of inactivity. As a factory default,
Auto Power Off is set to Auto.
With the Auto setting, the Auto Power Off function is
disabled while the AC adaptor is being used, and
enabled while the batteries are being used.
NOTICE
• The setting will revert to its default value if not backed up
before the power is turned off. Make sure to store the
settings before the Auto Power Off function becomes
activated (page 24).
• 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 the
proper sequence, in order to protect the devices from
damage. If you do not want the power to turn off
automatically when a device is connected, disable Auto
Power Off.
22
CK88 CK61 Owner's Manual
 Auto Power Off setting
Change the setting from the [MENU] button  General
 System  Auto Power Off (page 36).

Connecting headphones

Connect a pair of headphones to the [PHONES] jack.
Standard stereo phone plug
When a set of headphones are connected while the
Speaker Mute is set to Auto, the built-in speakers will be
muted. When set to Manual, the built-in speakers will
be muted by setting the SPEAKERS switch on the rear
panel to OFF.
The setting can be changed from the [MENU] button
 General  System  Speaker.
While the built-in speakers are muted, the output from
the [PHONES] jack will also be output from OUTPUT
jacks.
CAUTION
• Do not use the headphones for a long period of time at a
high volume level, since this can cause permanent hearing
loss.
• Before connecting the instrument to other electronic
components, turn off the power of all the components.
Also, before turning any components on or off, make sure
to set all volume levels to a minimum. Otherwise, damage
to the components or electrical shock may occur.
NOTICE
To avoid possible damage to the external device, first turn
on the power to the instrument, and then to the external
device. When turning off the power, do so in reverse order:
first turn off the power to the external device, and then to
the instrument.