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Casio AP-400 Manual

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E-28
Reference
Troubleshooting
Problem Cause Action See Page
No sound is
produced when I
press a keyboard
key.
1. The VOLUME controller is set to
“MIN”.
1. Rotate the VOLUME controller more
towards “MAX”.
) E-6
2. Headphones are connected to the
digital piano.
2. Unplug the headphones from the
digital piano.
) E-5
3. MIDI Local Control is turned off. 3. Turn on the Local Control setting. ) E-22
The pitch of the
digital piano is off.
1. The digital piano’s key setting is
something other than “0”.
1. Change the key setting to “0”, or turn
digital piano power off and then back
on again.
) E-21
2. Digital piano tuning is incorrect. 2. Adjust digital piano tuning, or turn the
digital piano off and then back on
again.
) E-21
No sound is
produced when I try
to play back a built-in
song or a recorded
song.
1. The VOLUME controller is set to
“MIN”.
1. Rotate the VOLUME controller more
towards “MAX”.
) E-6
2. Headphones are connected to the
digital piano.
2. Unplug the headphones from the
digital piano.
) E-5
When I play
something on the
digital piano, my
connected external
MIDI sound source
does not sound.
1. The digital piano’s send channel is
different from the send channel of the
external MIDI sound source.
1. Change the send channel settings of
the digital piano and/or the external
MIDI sound source so they are the
same.
) E-22
2. The volume or expression setting of
the external sound source is “0”.
2. Adjust the volume and expression
settings of the external sound source.
) External
sound
source
user’s guide
Buttons do not
operate.
Operation Lock is turned on. Turn off Operation Lock or turn the digital
piano off and then back on again.
) E-22
Tone, tempo and
other settings are not
initialized when the
digital piano is
turned on.
Setup Memory is turned on. Turn off Setup Memory. ) E-22
A tone’s quality and
volume sounds
slightly different
depending where it is
played on the
keyboard.
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.
When I press a
button, the note that
is sounding cuts out
momentarily or there
is a slight change in
how effects are
applied.
This happens when the sounds of multiple parts are sounding at the same time while using layer,
using the Duet Mode, playing back a built-in tune, recording, etc. Pressing a button when one of these
conditions exists will cause the effect setting that is built into the tone to change automatically, which
causes the notes to cut out momentarily or causes a slight change in how effects are being applied.
AP400_e.book 28 ページ ２００８年４月１５日　火曜日　午後１２時３０分
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