Casio CTK-900 Electronic Keyboard User Manual


 
E-79
Troubleshooting
Nothing happens when the
LAYER or SPLIT button is
pressed.
1. One or more of the melody channels
(2 through 4) is turned off.
2. The volume setting of one or more of
the melody channels (2 through 4) is
too low.
3. The keyboard is in record standby.
4. The SMF Player Mode is currently
being use.
1. Use the Mixer to turn on
Channels 2 through 4.
2. Use the Mixer to raise the
volume setting of Channels 2
through 4.
3. The LAYER and SPLIT buttons
are disabled during recording
and record standby.
4. Turn off the SMF Player Mode.
LAYER and SPLIT are not
available while the SMF Player
Mode is in use.
E-36
E-37, 38
E-61, 62
E-71
No sound is produced when
playing MIDI data from a
computer.
1. MIDI cables are not connected
properly.
2. Channel is turned off, or volume
setting is too low.
1. Connect MIDI cables properly.
2. Use the Mixer to turn the
channel on, or raise the volume
setting.
E-75
E-36, 38
Playing on the keyboard produces
an unnatural sound when
connected to a computer.
The computer’s MIDI Thru function is
turned on.
Turn off the MIDI Thru function on
the computer or turn off Local
Control on the keyboard.
E-70
Cannot record chord
accompaniment data on a
computer.
Accomp/Song MIDI Out is turned off. Turn on Accomp/Song MIDI Out. E-70
The keyboard starts up
abnormally when it is turned on.
1. Flash memory is corrupted.
2. The keyboard detected abnormal
flash memory data and is
automatically resetting the keyboard
system.
1. a. Remove the batteries from the
keyboard and disconnect the
AC adaptor and press the
POWER button.
b. Reload the batteries and/or
reconnect the AC adaptor, and
then press the POWER button
again to turn on power
c. Use the TRANSPOSE/
FUNCTION button to perform
the system reset operation
If this does not solve the
problem, contact your
nearest authorized CASIO
Service Provider to request
repair.
2. Wait (about 40 seconds) until the
“Pls Wait” message disappears
from the display.
E-70
A downloaded tone with
waveform contains noise or
keyboard operations become
abnormal when user data is
selected.
Someone may have turned off the
keyboard while data was being stored in
Flash memory or something else has
caused Flash memory contents to become
corrupted for some reason.
Use the TRANSPOSE/FUNCTION
button to perform the system reset
operation.
If this does not correct the problem,
contact your nearest authorized
CASIO Service Provider to request
maintenance.
E-70
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.
Problem Possible Cause Action See page
707A-E-081A
CTK900_e.book 79 ページ 2005年3月9日 水曜日 午後5時29分