User Manual

CK88 CK61 Owner’s Manual
66
Troubleshooting
If the CK does not behave as expected—for example, not producing the correct sound or producing no sound at
all—you can try to resolve the issue as described below. Many issues can also be resolved by carrying out the Factory
Reset (page 67) operation. If any specific issue should persist, please contact your Yamaha dealer or a service center
(see the back of this booklet).
Other information
Issue Suspected cause Solution
The CK turns off unexpectedly. This is normal when the Auto Power Off
function is enabled.
If necessary, you can disable the Auto Power
Off function to prevent it from turning off
the CK again (page 36).
No sound is produced. All the Part [ON/OFF] buttons are OFF. Set the desired Part [ON/OFF] button to ON.
The Part volume is turned fully down. Use the Part Volume sliders to adjust the
volume.
Local Control is set to Off. When Local Control is set to Off, the internal
tone generator will not play a sound when
you play the keyboard. Set Local Control to
On (page 37).
MIDI volume or expression has been set to a
very low level by an external MIDI controller.
Try changing a Live Set Sound.
If a pedal has been connected to the FOOT
PEDAL jacks, move the pedal to change the
volume.
No sound is produced
from the built-in
speakers.
SPEAKERS switch is set to OFF. Set the SPEAKERS switch to ON.
When the headphones are connected, the
built-in speakers may be muted in certain
settings as shown below.
When the [MENU] button General
System Speaker Speaker Mute is set
to Auto.
When the [MENU] button General
System Speaker Speaker Mute is set to
Manual and the SPEAKERS switch is set to
OFF.
Disconnect the headphones.
Set the SPEAKERS switch to ON.
No sound is produced
from the connected
external device.
Power to the CK or the connected external
audio device is not turned on.
Check the power to the CK and the
connected external audio device is turned
on.
The volume of the CK and the connected
external audio equipment are turned fully
down.
Adjust the volume. Use the [MASTER
VOLUME] slider to adjust the volume. If a
pedal has been connected to the FOOT
PEDAL jacks, try moving the pedals.
A sound continues to play indefinitely. An Effect (such as delay) continues. Lower the [DEPTH] knob or set the EFFECT1
or EFFECT2 [ON/OFF] button to OFF. If a Live
Set Sound has been changed while a sound
continues to play, try selecting a different
Live Set Sound.
Sounds are distorted. Effect settings are not appropriate. Sound will be distorted depending on the
effect types and the settings. Change the
effect types and the settings.
Volume is set too high.
Ou
tpu
t Gain is set too high.
Adjust the volume. To adjust the overall
volume of the CK, move the [MASTER
VOLUME] slider. Or, use the [MENU] button
General Audio Output Gain
(page 38).