Casio CT-640 User manual

Casiotone
CI-640
ELECTRONIC
MUSICAL
INSTRUMENT
INSTRUMENTO
MUSICAL
ELECTRONICO
OPERATION
MANUAL
2
MANUAL
DE
OPERACION
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Casiotone C 1-640
ELECTRONIC MUSICAL INSTRUMENT
Introduction
Your new CT-640 keyboard is a state-of-the-art musical in-
strument which incorporates the latest electronics tech-
nology to make ils operation as easy as possible.
Exceptional sound quality backed up by a host of sophisti-
cated features and functions makes this keyboard a joy to
play for everyone.
In order to enjoy the features and functions of this unit
to their fullest, be sure to carefully read this manual and
follow the instructions contained herein.
Contents
Te General Guide c3058 fecha hore eek doit eaeas 3
2 POWOE SUDINY 6 ciceeawo wea Gi eid des hoes 5
3. General Operation. ...... 0.0... ccc ccc eee eee 6
A. Pres@t TONGS: <i 5.63 32 hire salad esac eee nas 7
5. Tone Bank Sounds ......... 0.00.00 ccc cece ees §
6. Auto-rhythms. 0.00.00... eee eee eee 10
7. Auto-accompaniment.......... 0.000 c eee eee eens 11
§. Registration Function 0.0.0.0... 20... c cee eee 15
9, Performance Memory Function.................- 16
TOS IMO 36 bette Coarse seb Gerab eek eee trae ae 18
11. Troubleshooting .......00. 00.0.0... cece eee 20
12. Care of Your Keyboard ..........0.0. 0.0.0.0 .0000- 21
13. Specifications .......0.0.0.0 0.00. cc eee 22

1.
General
Guide
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GOGO
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@2@
@
Built-in
speakers
@®
Tone
select
button
@
Intro/ending
button
@
Power
switch
©
Record
button
@®
Tempo
contre!
buttons
©
Main
volume
slider
@
Recording
start/stop
button
@
Rhythm
selectors
@
Accomp
volume
slider
@
Tone
Bank
button
@
Rhythm
select
button
@
Rhythm
volume
slider
@
Auto
harmonize
button
@®
Registration
select
button
@
Chord/MIDI
selector
|
@®
Synchro/fill-in
button
@
Registration
set
button
@
Tone
selectors
@
Rhythm
start/stop
button
@
Demo
button

[Rear panel]
SUSTAIN FOOT VOLUME
{. General Guide
r~ LINE OUT ~4
A L
@ MIDI terminals (IN/OUT/THRU)
@® Tuning control
Adjusts the pitch of the entire keyboard within +30
cents and allows easy tuning with other instruments.
@ Sustain jack
@® Foot volume jack
@ Output jacks (L/R)
* As many preset tones are in stereo, be sure to use both output jacks
when connecting to an external amplifier.
@ AC adaptor jack
@ Headphone jack
Demonstration Tune
This unit features a preset demonstra-
tion tune which has been carefully pro-
grammed to showcase all the features and
benefits of this. unit. Simply press the
Demo button @, and listen to the CT-640 (~_}
plays itself!
DEMO
* The demonstration tune is played in an endless loop. Press
the Demo button again to stop the tune. |
* The keyboard is inoperable while playing the demonstration
tune. |

2. Power Supply
¢ Dry batteries
This unit can be powered by six D size (SUM-I/R20P)
manganese dry cell batteries. Weakened batteries will
result in lower volume or poor tonal quality. The power
indicator lamp will gradually lose its brightness when
battery power weakens. Al this time, change batteries
or shift to one of the allernate power sources men-
tioned below.
Battery replacement:
(1) Open the battery compartment cover on the bottom
of the unit and take out used batteries.
(2) Load new batteries taking care that polarity is correct.
* It is advisable to replace all six batteries at the same time for longer
battery life.
* Standard battery life is approximately 6 hours.
¢ Car battery
With the car battery adaptor (CA55, optional), DC power
is
supplied
from
a
car
battery
through
the
cigarette
lighter socket.
An AC adaptor (AD-5, optional) is required when using
household current. Use only a genuine CASIO adaptor
with the same voltage rating (100, 117, 220, or 240) as the
power supply in your area to prevent component damage.
Plug the AC adaptor into the AC outlet and the cord into
the unit. This will automatically cut off the battery power
supply.
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‘AC adaptor AD-5
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Car battery adaptor CA5

2. Power Supply
* Auto power off function
Power is automatically cut off approximately 6 minutes
after the last operation of the unit. Power supply can
be restored by switching power OFF and then ON
again.
CAUTION
_* Use only genuine CASIO adaptors to avoid risk of
damage.
@) Turn the power switch ON.
(2) Adjust the volume level.
(3) Select one of 30 preset tones (see “Preset Tones”,
page 7) or one of 465 Tone Bank sounds (see “Tone Bank
Sound”, page 8).
(4) Now, start playing.
3. General Operation |
* Remove batteries from the battery compartment when
the unit is not used for extended periods. (Battery leak-
age can damage electrical parts.)
* The adaptor may become warm when left connected
to an outlet. This is normal, but the adaptor should be
disconnected when not in use.
* THE FOLLOWING CONDITION CAN CAUSE BATTERIES
TO BURST:
1. Use of adaptors other than genuine CASIO adaptors.
2. Loading batteries with polarities reversed.
Accomp volume slider
Main volume slider
i
= >
x
Power
switch
Rhythm
volume
slider
SILITHT
fq | [| fe
AlN ACCOMP RHYTHM
FPOWER VOLUME VOLUME VOLUME

* To select a preset tone
@) Specify either the upper or lower row of preset tones
by pressing the tone select button, The upper or lower
select indicator lights to show the active row.
(2) Press one of the tone selectors to choose a preset tone.
* “PIANO” tone is automatically selected when power is turned ON.
¢ Dual bass sounds
When BASS sound is selected by pressing the “BASS”
button (one of the tone selector), two different bass
tones can be played on the keyboard at the same time.
The WOOD BASS tone sounds on the lower half of the
keyboard (C2—B3), while the SLAP BASS tone sounds
on the upper half (C4—C7).
b—
Wood
bass
(C2—B3)
pe
|
——————
Slap
bass
(C4A—C7)
4.
Preset
Tones
|
* To select percussion sounds
When PERCUSSION sound is selected by the tone
selector, the keyboard keys can be used to play a total
49 different built-in percussion sounds. These sounds
are assigned to respective keys as shown below.
* Percussion sounds can be output through MIDI, allowing this
keyboard to be used as a MIDI percussion sound source (see page 19).
8990009000008
bass drum 1/2
snare drum 1/2
gated snare drum
rim shol
closed hihat 1/2
open hihat 1/2
crash cymbal /2/3/mixed
synth. cymbal 1/2/3
ride cymbal 1/2
gonp 1/2
tom 1/2/3/4/mixed
@
@
@®
@
@
@
@
@®
®
synth. tom 1/2/3
cow bell 1/2
triangle open/mute
timbales; high mute/
high/low/mixed
computer game sound {/2/3
apogo high/low
conga; high mute/high/
middle/low/mixed
clave high/low

5. Tone Bank Sounds
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3 This keyboard features Casio's innovative “Tone Bank”
" feature, which lets you choose from an amazing
total of 465 different sound combinations. To create these
layered sounds, the Tone Bank function actually integrates
the characteristics of the 30 preset sounds which are
produced by the new PCM sound source to creale entirely
new and distinct sounds which can be selected through
the following procedure.
¢ To select Tone Bank sounds
@) Select any of the 30 preset tone. When selecting Tone
Bank sounds, the tone initially selected is used as a
base, or “Primary” sound.
*
When
the
Primary
sound
is
selected,
the
keyboard
features
10-note
polyphony.
(2) Press the Tone Bank button.
This
activates
the
Tone
Bank
function,
allowing
you
to
choose
a
Secondary
sound
to
integrate
with
the
Primary sound you just selected.
*
After
the
Tone
Bank
button
is
pressed,
the
keyboard
changes
to
5-nole
polyphony.
(3) Select any other of the 30 preset tones. The characteris-
tics of this “Secondary” sound is automatically integrat-
ed with those of the “Primary” sound already selected.
¢ To select a different secondary sound
The secondary sound can be changed at any tite, as
long as the Tone Bank function is selected. Simply
select a different preset tone—the primary sound re-
mains the same.
* To select a different primary sound
The primary sound can be changed by first turning the
Tone Bank function OFF (press Tone Bank button so
that indicator goes out), selecting any other preset tone,
and finally turning the Tone Bank function back ON.
The secondary tone remains the same in this case.

<Example of Tone Bank Operation >
G4)
Select
the
preset
ORGAN
tone
by
oth
pressing
the
corresponding
tone
selec-
tor. (This is the “Primary” sound.) eee
Initially, the ORGAN tone can be
played with 10-note polyphony.
(2) Press the Tone Bank button. san ooune
The ORGAN tone can now be played aa
with 5-note polyphony.
* indicator tights
Tone bank button
NOTE:
When
power
is
turned
ON,
the
PIANO
tone
is
auto-
matically
selected
in
Tone
Bank
memory.
Because
of
this,
procedure
(2)
above
causes
the
ORGAN
tone
to
be
inte-
grated
with
the
PIANO
tone.
(3) Select the preset CHORUS tone by curs
pressing the corresponding tone selec-
for. (This is the “Secondary” sound.)
Now, the “ORGAN + CHORUS”
integrated Tone Bank sound can be
played with 5-note polyphony.
SYNTH
REED
(6)
5. Tone Bank Sounds
Next, try changing the Secondary
sound by selecting the preset FLUTE
tone. The “ORGAN + FLUTE” integrat-
ed Tone Bank sound can be played
with 5-note polyphony.
Next, try changing the Primary sound
by first pressing the Tone Bank button
once again to turn the Tone Bank func-
{ion OFF temporarily. The preset
ORGAN tone can once again be played
with 10-note polyphony.
Select a new Primary sound—the
STRINGS tone for example, and turn
the Tone Bank function back ON. As
the secondary sound (FLUTE) does not
change in this case, you can now play
the “STRINGS + FLUTE” integrated
Tone Bank sound with 5-note poly-
phony.
FUUTE

¢ Playing an auto-rhythm
(1) Press the rhythm select button to choose the upper row
or the lower row of auto-rhythms. The upper or lower
select indicator lights to show the active row.
(2) Press one of the rhythm selectors.
(3) Press start/stop button to start the rhythm.
(4) Adjust the tempo of the rhythm by using the tempo
control buttons. Pressing the <A> button will increase
tempo, while pressing the <V> button will decrease
tempo.
* Tempo of the auto-rhythm can be adjusted between 40 and 256 beats
per minute, Pressing both tempo keys at the same time resets the
tempo to 132 beats per minute.
(5) You can adjust the relative volume of the rhythm by
using the rhythm volume slider.
(6)
Press
start/stop
button
once
again
to
stop
auto-rhythm
play.
¢ Using Synchro/fill-in button
Press to enter synchro start standby. Rhythm starts
when an accompaniment keyboard key (lower 1.5
octave, C through F) is pressed. (See page 12-13 to use
synchro start in the aulto-accompaniment perfor-
mance.) When pressed during auto-rhythm and
6. Auto-rhythms |
accompaniment performance, an appropriate fill-in is
inserted in the rhythm pattern. If the button is held
down, the fill-in pattern is repeated until the end of
the measure during which the button is released.
Using Intro/ending button
If
you
press
the
intro/ending
button
instead
of
press-
ing
the
start/stop
button
to
start
an
auto-rhythm,
the
selected
auto-rhythm
begins
after
a
one-measure
intro
pattern.
This
can
be
an
effective
way
to
lead
into
auto-
rhythm
performance.
If
pressed
during
auto-rhythm
and
accompaniment
performance,
the
rhythm
stops
af-
ter
an
appropriate
ending
pattern.
*
Using
synchro
start
with
an
intro
pattern
Press
the
synchro/fill-in
button
to
enter
synchro
start
standby,
and
subsequently
press
the
Intro/ending
but-
ton.
Rhythm
starts
when
an
accompaniment
keyboard
key
is
pressed,
after
a
one-measure
intro
pattern.