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E-23
Troubleshooting
Symptom
No sound produced when
keyboard keys are pressed.
Keyboard out of tune.
No sound produced by demo tune
play.
Memory contents deleted.
No sound produced by connected
external MIDI sound source when
the digital piano keys are pressed.
A tone’s quality and volume
sounds slightly different
depending where it is played on
the keyboard.
Possible Cause
1. VOLUME knob set to MIN.
2. Headphones connected to the
digital piano.
3. Local Control turned off.
4. Check the current
accompaniment mode setting.
Normally, the accompaniment
keyboard will not produce any
note while CASIO CHORD or
FINGERED is selected as the
accompaniment mode.
1. The piano key is set to a value
other than C.
2. Incorrect pitch setting of the
piano.
1. VOLUME knob set to MIN.
2. Headphones connected to the
digital piano.
Lithium battery is dead.
1. The digital piano Send Channel
does not match the Send
Channel of the MIDI sound
source.
2. Volume or expression setting of
the external sound source is set
to 0.
Action
1. Move the VOLUME knob more
towards MAX.
2. Disconnect the headphones
from the digital piano.
3. Turn on Local control.
4. Change the accompaniment
mode to NORMAL.
1. Change the piano key setting to
C, or turn the digital piano
power off and then back on
again.
2. Correct the pitch setting, or turn
the digital piano power off and
then back on again.
1. Move the VOLUME knob more
towards MAX.
2. Disconnect the headphones
from the digital piano.
Contact your CASIO Service
Provider for replacement of the
lithium battery.
1. Change the Send Channel
settings so they are identical.
2. Change the volume or
expression setting of the
external sound source to an
appropriate value.
Reference
Page E-6
Page E-5
Page E-22
Page E-12
Page E-21
Page E-21
Page E-6
Page E-5
Page E-25
Page E-22
See the
documentation
that comes with
the external
sound source.
404A-E-025B
This is an unavoidable result of the digital sampling process,* and does not indicate
malfunction.
* Multiple digital samples are taken for the low range, middle range, and high range of
the original musical instrument. Because of this, there may be a very slight difference
in tonal quality and volume between sample ranges.