Using Batteries; To Load Batteries 2.0; Important Battery Information; Using The Ac Adaptor - Casio CTK-40I User Manual

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Power Supply
This keyboard can be powered by current from a standard house-
hold wall outlet (using the specified AC adaptor) or by batteries.
Always make sure you turn the keyboard off whenever you are
not using it.
Using batteries
Always make sure you turn off the keyboard before loading or
replacing batteries.
To load batteries
]. Remove the battery compartment cover.
2. Load six AA-size batteries into the battery com-
partment.
¢ Make sure that the
positive (+) and
negative (—) ends
are facing correctly.
3. Insert the tabs on the battery compartment cov-
er into the holes provided and close the cover.
The keyboard may not function correctly if you load or replace
batteries with power turned on. If this happens, turning the key-
board off and then back on again should return functions back to
normal.
Important Battery Information
@ The following shows the approximate battery life provided
by different battery types.
¢ Standard battery life: Approximately 2 hours (SUM-3/R6P)
Approximately 6 hours (AM3/LR6)
Both of the above values are standard battery life at normal
temperature, with the keyboard volume at a medium setting.
Temperature extremes or playing at very loud volume settings
can shorten battery life.
Mf Any of the following symptoms indicate low battery power.
Replace batteries as soon as possible whenever any of the fol-
lowing occurs.
¢ Dim power supply indicator
¢ Dim, difficult to read display
e Abnormally low speaker/ headphone volume
¢ Distortion of sound output
¢ Occasional interruption of sound when playing at high vol-
umes
¢ Sudden power failure when playing at high volumes
¢ Dimming of the display playing at high volume
¢ Abnormal rhythm or Song Bank tune play
IMPORTANT!
Improper handiing of batteries can cause them to burst and leak,
which creates the danger of personal injury or damage due to
contact with battery acid. Be sure to note the following important
precautions.
¢ Always make sure that the positive (+) and negative (-) poles are
facing correctly as indicated inside the battery compartment.
¢ To avoid damage caused by leaking batteries, be sure to re-
move batteries from the keyboard whenever you leave it unat-
tended for long periods (such as when leaving on a trip).
* Never mix batteries of different types.
ad
¢ Never mix old batteries with new ones.
E-10
¢ Never discard batteries by incinerating them, do not allow their
poles to be shorted (connected to each other), never take bat-
teries apart, and do not expose batteries to direct heat.
¢ Replace batteries as soon as possible after any sign they are
getting weak.
« Never attempt to recharge batteries.
Using the AC Adaptor
Make sure that you use only the AC adaptor specified for this
keyboard.
Specified AC Adaptor: AD-5
DC 9V jack
AC adaptor AD-5
ar we
{2
-,
¢
AC outlet
Also note the following important warnings and precautions when
using the AC adaptor.
WARNING!
* Take care to avoid any damage to or breakage of the power cord.
Never place any heavy objects on the power cord or expose it to
direct heat. Doing so creates the danger of power cord damage,
fire, and electrical shock.
* Use only the specified AC adaptor. Use of another type of adaptor
creates the danger of fire and electrical shock.
CAUTION!
¢ For safety sake, be sure to unplug the AC adaptor from the wall
outlet whenever leaving the keyboard unattended for a long time
(such as when leaving on a trip).
* Always turn off the keyboard and unplug the AC adaptor from the
wall outlet when you are not using the keyboard.
IMPORTANT!
¢ Make sure that the keyboard is turned off before connecting or
disconnecting the AC adaptor.
* Using the AC adaptor for a long time can cause it to become
warm to the touch. This is normal and does not indicate mal-
function.
Auto Power Off
When you are using battery power, keyboard power turns off au-
tomatically whenever you leave it on without performing any
operation for about 6 minutes. When this happens, use the POW-
ER/MODE switch to turn power back on.
HNOTE!
Auto Power Off is disabled (it does not function) when you are using
the AC adaptor to power the keyboard.
To disable Auto Power Off
Hold down the TONE
button while turning on the keyboard to
disable Auto Power Off.
¢ When Auto Power Off is disabled, the keyboard does not turn
off automatically no matter how long it is left with no operation
being performed.
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Display 1
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POWER/MODE
This section provides information on performing basic keyboard
operations.
To play the keyboard
]. Set the POWER/MODE switch to NORMAL.
2. Use the MAIN VOLUME buttons to lower the key-
board volume.
* It's always a good idea to set the keyboard volume at a
relatively low level before playing.
* Pressing [A] or [VW] causes the curent volume setting to
appear on the display. Press [A] or [W] again to change the
setting.
,
3. Play something on the keyboard.
Selecting a Tone
This keyboard comes with 100 built-in tones. Use the following
procedure to select the tone you want to use.
Display 1
MAIN VOLUME
To select a tone
I. Find the tone you want to use in the keyboard's
tone list and note its tone number.
2. Press the TONE button.
Display 1
RHYTHM
SONG BANK
ase = bese
3. Use the number buttons to input the two digit
tone number for the tone you want to select.
Example: To select "26 WOOD BASS", input 2 and then 6.
Display 1
H
ALM TMT im Reo
MAIN VOLUME
* Now notes played on the keyboard will be played using
an acoustical wood bass sound.
ENOTES!
* Always input both digits for the tone number, including a leading
Zero (if any). If you input one digit and stop, the display will automat-
ically clear your input after a few seconds.
¢ You can also increment the displayed tone number by pressing [+]
and decrement it by pressing [-].
* The tone named "99 PERCUSSION" assigns various percussion
musical instruments to keys on the keyboard. (page A-2)
Keyboard split tones
Some of the preset tones split the keyboard and assign two or
more sounds. With such a preset tone, the sound produced de-
pends on what position of the keyboard you play. For example,
BASS/PIANO (tone 90) puts BASS on the left and PIANO on the
right of the keyboard.
Example: BASS/PIANO (tone 90)
se
ew
tr
wm pene
Pee
mobs
bet
sdbhe
ie
caTew
cs
wats
tune
scnn
aN
|~«———— pass ——»>|~——___
piano ——___—_»
Polyphony
The term polyphony refers to the maximum number of notes you
can play at the same time. The keyboard has 12-note polyphony,
which includes the notes you play as well as the rhythms and
auto-accompaniment patterns that are played by the keyboard.
This means that when a rhythm or auto-accompaniment pattern
is being played by the keyboard, the number of notes (polypho-
ny) available for keyboard play is reduced. Also note that some of
the tones offer only 6-note polyphony.
¢ When rhythm or auto accompaniment is playing, the number
of sounds simultaneously played is reduced.
Digital Sampling
A number of the tones that are available with this keyboard have
been recorded and processed using a technique called digital sam-
pling. To ensure a high level of tonal quality, samples are taken in
the low, mid, and high ranges and then combined to provide you
with sounds that are amazingly close to the originals. You may
notice very slight differences in volume or sound quality for some
tones when you play them at different positions on the keyboard.
This is an unavoidable result of multiple sampling, and it is not a
sign of malfunction.
:
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