Casio CTK-650 Operation Manual page 33

Electronic musical instrument
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Technical Reference _
B Troubleshooting
Be sure to check the following table whenever you experience problems with
keyboard operation.
[
Problem
Possible Causes
|
Action
|
ht. Power supply problem
13. Connect AC adaptor
correctly and make sure
that batteries are loaded
with the positive (+) and
negative (-) poles facing
|
correctly
2. VOLUME setting
is too low |2.
Move the VOLUME slider
|
more towards the
maxim
ny setting.
Unplug the headphones.
No sound when playing
the keyboard,
nN
in
3. Headphones
are plugged [3
{
:
|
- You are attempting to play |4
4
Enter the NORMAL
mode
normally on the
(all mode indicators unlit)
accompaniment keyboard
,
.
while CASIO CHORD
or
'
FINGERED is selected
|
Magical Presets 104 through | 5. With these Magical Presets,
107 are selected.
;
the far right nine
keys
}
Bormally do not sound
MIDI Local Control is off.
|6. Switch MIDI Local control
;
oon
7. Command
from external | 7. Use
the
external
MIDI
MIDI
device
has set the}
— device to adjust the volume
|
|
|
|
|
|
wn
EN
|
|
volume of channel 1 tozero.|—
of channel 1
|
ee
i
a
|
H
n
oO
7
Rhythm and
j Accompaniment vohime is set i
the ACCOMP VOLUME
auto-accompaniment do not] to 000.
| button to raise the volume of
play.
| the accompaniment
|
ine
cet
Following
symptoms
occur| Low battery power.
! Replace the batteries with new
when using batteries.
|
8.
* Dim power supply indicator
|
«Abnormally
low
speaker/;
headphone volume
|
¢ Distortion of sound output
i
*A totally different tone may|
sound
|
¢ Abnormal rhythm pattern and i
demo tune play
* Continued sound output even |
after you release a button
*Occasional
interruption
of
sound when playing at high
volumes
|
¢Sudden power failure when
playing at high volumes
bee
ee
Ret ey
& Specifications
song:
:
one
System:
Real-time recording
Memory capacity:
Up to 1.300 notes
Registration memory:
4 setups
Contents:
Tone
number,
rhythm
number,
tempo,

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