Casio CTK-581 Manual

USER’S GUIDE
GUÍA DEL USUARIO

ES

CTK481/491-ES-1

CTK481_ES_cover1.p65 03.10.7, 2:59 PMPage 1 Adobe PageMaker 6.5J/PPC

GUIDELINES LAID DOWN BY FCC RULES FOR USE OF THE UNIT IN THE U.S.A. (not applicable to other areas).

NOTICE

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

FCC WARNING

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

Important!

Please note the following important information before using this product.

• Before using the optional AD-5 Adaptor to power the unit, be sure to check the AC Adap­tor for any damage first. Carefully check the power cord for breakage, cuts, exposed wire
and other serious damage. Never let children use an AC adaptor that is seriously dam­aged.

• Never attempt to recharge batteries.

• Do not use rechargeable batteries.

• Never mix old batteries with new ones.

• Use recommended batteries or equivalent types.

• Always make sure that positive (+) and negative (–) poles are facing correctly as indicated
near the battery compartment.

• Replace batteries as soon as possible after any sign they are getting weak.

• Do not short-circuit the battery terminals.

• The product is not intended for children under 3 years.

• Use only CASIO AD-5 adaptor.

• The AC adaptor is not a toy.

• Be sure to disconnect the AC adaptor before cleaning the product.

CASIO ELECTRONICS CO., LTD.
Unit 6, 1000
North Circular Road
London NW2 7JD, U.K.

This mark is valid in the EU countries only.

Please keep all information for future reference.

625A-E-002A

CTK481_E_CE.p65 03.10.7, 2:58 PMPage 2 Adobe PageMaker 6.5J/PPC

Safety Precautions

Congratulations on your selection of the
CASIO electronic musical instrument.

• Before using the instrument, be sure to
carefully read through the instructions
contained in this manual.

• Please keep all information for future ref­erence.

Symbols

Various symbols are used in this user’s guide
and on the product itself to ensure that the
product is used safely and correctly, and to
prevent injury to the user and other persons
as well as damage to property. Those sym­bols along with their meanings are shown
below.

DANGER

This symbol indicates information that, if
ignored or applied incorrectly, creates the
danger of death or serious personal injury.

Symbol Examples

This triangle symbol ( ) means
that the user should be careful.
(The example at left indicates
electrical shock caution.)

This circle with a line through it

) means that the indicated ac-

(
tion must not be performed. In­dications within or nearby this
symbol are specifically prohib­ited. (The example at left indi­cates that disassembly is prohib­ited.)

The black dot (
indicated action must be per­formed. Indications within this
symbol are actions that are spe­cifically instructed to be per­formed. (The example at left indi­cates that the power plug must be
unplugged from the electrical
socket.)

) means that the

WARNING

This indication stipulates matters that have
the risk of causing death or serious injury
if the product is operated incorrectly while
ignoring this indication.

CAUTION

This indication stipulates matters that have
the risk of causing injury as well as mat­ters for which there is the likelihood of
occurrence of physical damage only if the
product is operated incorrectly while ig­noring this indication.

625A-E-003A

E-1

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 1 Adobe PageMaker 6.5J/PPC

DANGER

Alkaline Batteries

Perform the following steps imme­diately if fluid leaking from alka­line batteries ever gets into your
eyes.

1. Do not rub your eyes! Rinse them
with water.

2. Contact your physician immedi­ately.

Leaving alkaline battery fluid in
your eyes can lead to loss of sight.

AC Adaptor

Misuse of the AC adaptor’s electric
cord can damage or break it, creat­ing the risk of fire and electric shock.
Always make sure you observe the
following precautions.

• Never place heavy objects on the
cord or subject it to heat.

• Never try to modify the cord or
subject it to excessive bending.

• Never twist or stretch the cord.

• Should the electric cord or plug

become damaged, contact your
original retailer or authorized
CASIO Service Provider.

WARNING

Smoke, Strange Odor, Overheating

Continued use of the product while
it is emitting smoke, a strange odor,
or heat creates the risk of fire and
electric shock. Take the following
steps immediately.

1. Turn off power.

2. If you are using the AC adaptor
for power, unplug it from the wall
outlet.

3. Contact your original retailer or
an authorized CASIO Service Pro­vider.

AC Adaptor

Misuse of the AC adaptor creates
the risk of fire and electric shock.
Always make sure you observe the
following precautions.

• Be sure to use only the AC adap­tor that is specified for this prod­uct.

• Use only a power source whose
voltage is within the rating
marked on the AC adaptor.

• Do not overload electrical outlets
and extension cords.

AC Adaptor

Never touch the AC adaptor while
your hands are wet.
Doing so creates the risk of electric
shock.

Batteries

Misuse of batteries can cause them
to leak, resulting in damage to
nearby objects, or to explode, creat­ing the risk of fire and personal in­jury. Always make sure you observe
the following precautions.

• Never try to take batteries apart
or allow them to become shorted.

• Never expose batteries to heat or
dispose of them by incineration.

• Never mix old batteries with new
ones.

• Never mix batteries of different
types.

• Do not charge the batteries.

• Make sure the positive (+) and

negative (–) ends of the batteries
are facing correctly.

E-2

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 2 Adobe PageMaker 6.5J/PPC

625A-E-004A

Do not incinerate the product.

Never throw the product into fire.
Doing so can cause it to explode,
creating the risk of fire and personal
injury.

Water and Foreign Matter

Water, other liquids, and foreign
matter (such as pieces of metal) get­ting into the product create the risk
of fire and electric shock. Take the
following steps immediately.

1. Turn off power.

2. If you are using the AC adaptor
for power, unplug it from the wall
outlet.

3. Contact your original retailer or
an authorized CASIO Service Pro­vider.

Disassembly and Modification

Never try to take this product apart
or modify it in any way. Doing so
creates the risk of electric shock,
burn injury, or other personal in­jury. Leave all internal inspection,
adjustment, and maintenance up to
your original retailer or authorized
CASIO Service Provider.

Plastic Bags

Never place the plastic bag the prod­uct comes in over your head or in
your mouth. Doing so creates the
risk of suffocation.
Particular care concerning this pre­caution is required where small chil­dren are present.

Keep off of the product and stand.*

Climbing onto the product or stand
can cause it to tip over or become
damaged. Particular care concern­ing this precaution is required
where small children are present.

Location

Avoid locating the product on an
unstable stand, on an uneven sur­face, or any other unstable location.
An unstable location can cause the
product to fall over, creating the risk
of personal injury.

Dropping and Impact

Continued use of this product after
it has been damaged by dropping
or subjecting it to strong impact cre­ates the risk of fire and electric
shock. Take the following steps im­mediately.

1. Turn off power.

2. If you are using the AC adaptor
for power, unplug it from the wall
outlet.

3. Contact your original retailer or
an authorized CASIO Service Pro­vider.

625A-E-005A

E-3

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 3 Adobe PageMaker 6.5J/PPC

CAUTION

AC Adaptor

Misuse of the AC adaptor creates
the risk of fire and electric shock.
Always make sure you observe the
following precautions.

• Do not locate the electric cord
near a stove or other sources of
heat.

• Never pull on the cord when un­plugging from the electrical out­let. Always grasp the AC adap­tor when unplugging.

AC Adaptor

Misuse of the AC adaptor creates
the risk of fire and electric shock.
Always make sure you observe the
following precautions.

• Insert the AC adaptor into the
wall outlet as far as it will go.

• Unplug the AC adaptor from the
wall outlet during lightening
storms or before leaving on a trip
or other long-term absence.

• At least once a year, unplug the
AC adaptor from the wall outlet
and wipe away any dust that is
built up in the area around the
prongs of the plug.

Relocating the Product

Before relocating the product, al­ways unplug the AC adaptor from
the wall outlet and disconnect all
other cables and connecting cords.
Leaving cords connected creates the
risk of damage to the cords, fire,
and electric shock.

Cleaning

Before cleaning the product, always
unplug the AC adaptor from the
wall outlet first. Leaving the AC
adaptor plugged in creates the risk
of damage to the AC adaptor, fire,
and electric shock.

Batteries

Misuse of batteries can cause them
to leak resulting in damage to
nearby objects, or to explode, creat­ing the risk of fire and personal in­jury. Always make sure you observe
the following precautions.

• Use only batteries that are speci­fied for use with this product.

• Remove batteries from the prod­uct if you do not plan to use it for
a long time.

Connectors

Connect only the specified devices
and equipment to the product’s con­nectors. Connection of a non-speci­fied device or equipment creates the
risk of fire and electric shock.

Location

Avoid the following locations for
this product. Such locations create
the risk of fire and electric shock.

• Areas subject to high humidity
or large amounts of dust.

• In food preparation areas or other
areas subject to oil smoke.

• Near air conditioning equipment,
on a heated carpet, in areas ex­posed to direct sunlight, inside of
a vehicle parked in the sun, or
any other area that subjects the
product to high temperatures.

E-4

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 4 Adobe PageMaker 6.5J/PPC

625A-E-006A

Display Screen

• Never push on the display
screen’s LCD panel or subject it
to strong impact. Doing so can
cause the LCD panel’s glass to
crack, creating the risk of personal
injury.

• Should the LCD panel ever crack
or break, never touch the liquid
inside of the panel. LCD panel
liquid can cause skin irritation.

• Should LCD panel liquid ever get
inside your mouth, immediately
wash out your mouth with water
and contact your physician.

• Should LCD panel liquid ever get
into your eyes or onto your skin,
rinse with clear water for at least
15 minutes, and then contact a
physician.

Sound Volume

Do not listen to music at very loud
volumes for long periods. Particu­lar care concerning this precaution
is required when using headphones.
High volume settings can damage
your hearing.

IMPORTANT!

When using batteries, be sure to replace them or shift to one
of the alternate power sources whenever you notice any of
the following symptoms.

• Dim power indicator

• Instrument does not turn on

• Display that is flickering, dim, or difficult to read

• Abnormally low speaker/headphone volume

• Distortion of sound output

• Occasional interruption of sound when playing at high vol­ume

• Sudden power failure when playing at high volume

• Flickering or dimming of the display when playing at high
volume

• Continued sound output even after you release a key

• A tone that is totally different from the one that is selected

• Abnormal rhythm pattern and Song Bank play

• Loss of power, sound distortion, or low volume when play­ing from a connected computer or MIDI device

<CTK-491 only>

• Distortion of microphone input

• Dim power supply indicator when a microphone is used

• Sudden power failure when using the microphone

Heavy Objects

Never place heavy object on top of
the product.
Doing so can make the product top
heavy, causing the product to tip
over or the object to fall from it,
creating the risk of personal injury.

Correct Stand* Assembly

An incorrectly assembled stand can
tip over, causing the product to fall
and creating the risk of personal in­jury.
Make sure you assemble the stand
correctly, following the assembly
instructions that come with it. Make
sure you mount the product on the
stand correctly.

* Stand is available as an option.

625A-E-007B

E-5

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 5 Adobe PageMaker 6.5J/PPC

Introduction

Congratulations upon your selection of this CASIO musical instrument. This keyboard provides
you with the following features and functions.

❐ 100 tones

• Choose from among orchestral sounds, synthesized sounds, and more.

❐ 100 rhythms

• 100 versatile rhythms help to add plenty of life to all your keyboard performances.

❐ Auto Accompaniment

• Simply play a chord and the corresponding rhythm, bass and chord parts play automatically.

❐ 100-tune Song Bank

• A wide selection of favorites including “ODE TO JOY” and “JINGLE BELLS” is yours for your
listening enjoyment or play along fun. A simple operation cuts out the melody part or accom­paniment part of the tune, allowing you to play along on the keyboard.

❐ Musical Information System

• A big LCD screen graphically shows you fingerings, keyboard keys to be pressed, and notes,
making keyboard play more informative and enjoyable than ever before.

❐ MIDI compatibility

• Connecting to another MIDI device lets you sound notes on both this keyboard and the
connected device by playing on this keyboard. You can even playback commercially avail­able pre-recorded MIDI data.

E-6

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 6 Adobe PageMaker 6.5J/PPC

625A-E-008A

Contents

Safety Precautions ................E-1

Introduction ........................... E-6

Contents................................. E-7

General Guide ........................ E-8

Rear Panel ................................................. E-9

Using the Display .....................................E-10

Song Bank

Quick Reference .................. E-11

Playing Back a Song Bank Tune .............E-11

Power Supply.......................E-13

Using batteries ......................................... E-13

Using the AC Adaptor ..............................E-14

Auto Power Off.........................................E-14

Settings ....................................................E-14

Synchro Starting Accompaniment

with Rhythm Play .....................................E-21

Adjusting the Accompaniment Volume ....E-21

Using the Song Bank ..........E-22

Playing Back a Song Bank Tune ............. E-22

Song Bank Mode Display ........................ E-23

Adjusting the Tempo of a Song Bank Tune...

Changing the Tone of a Song Bank

Tune’s Melody..........................................E-24

Playing Along with a Song Bank Tune.....E-24

Applause Sound ......................................E-25

Playing Back All Song Bank Tunes

in Succession ........................................... E-25

E-23

Using the Chord Book ........E-26

Looking Up a Chord

Using the Chord Book.............................. E-27

Keyboard Settings...............E-29

Connections.........................E-15

Phones/Output Terminal .......................... E-15

Sustain jack Terminal ............................... E-15

Accessories and Options ......................... E-15

Basic Operations .................E-16

Playing the Keyboard...............................E-16

Selecting a Tone ...................................... E-16

Using the Microphone Jack

(CTK-491 only) ........................................ E-17

Auto Accompaniment .........E-18

Selecting a Rhythm ..................................E-18

Playing a Rhythm .....................................E-18

Adjusting the Tempo ................................ E-19

Using Auto Accompaniment .....................E-19

Using a Fill-in Pattern .............................. E-21

Transposing the Keyboard.......................E-29

Tuning the Keyboard ............................... E-30

MIDI.......................................E-31

What is MIDI? .......................................... E-31

General MIDI ........................................... E-31

Changing MIDI Settings ........................... E-32

Troubleshooting ..................E-34

Specifications ...................... E-36

Care of your keyboard ........E-37

Appendix ............................... A-1

Tone List .....................................................A-1

Note Table ..................................................A-2

Fingered Chord Chart ................................A-4

Percussion Instrument List ........................A-5

MIDI Implementation Chart

625A-E-009B

CTK481_E01-07.p65 03.10.7, 2:58 PMPage 7 Adobe PageMaker 6.5J/PPC

E-7

General Guide

• Key, button, and other names are indicated in the text of this manual using bold type.

CC

C

CC

F

G I K

2

6

8D9

A

*

EE

E SONG BANK CONTROLLER

EE

4

31

5 07 B

JH

C E

F

[+]/[–] buttons

• Negative values can be changed only

by using [+] and [–] to increase and
decrease the displayed value.

Number buttons/
Chord specification buttons

• For input of numbers to change
displayed settings.

• For input of chord specification
data when using the Chord
Book.

E-8

RIGHT ON/OFF button
(MELODY)

LEFT ON/OFF button
(ACCOMP)

FF button

REW button

PLAY/PAUSE button

STOP button

625A-E-010A

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 8 Adobe PageMaker 6.5J/PPC

❚

NOTE

• Illustrations in this User’s Guide shows the CTK-481.

Rear Panel

• CTK-481 • CTK-491

NL M N O PLQ R MO P

L MIDI OUT terminal

M MIDI IN terminal

N SUSTAIN jack terminal

O DC 9V jack

P PHONES/OUTPUT terminal

<CTK-491 only>

Q MIC IN jack

R MIC VOLUME

1 Rhythm list

2 Power indicator

3 POWER/MODE switch

4 MAIN VOLUME buttons

5 ACCOMP VOLUME button

6 TRANSPOSE/TUNE/MIDI button

7 CHORD BOOK button

8 Tone list

9 Display

0 RHYTHM button

A TONE button

B SONG BANK button

C Number buttons (Chord specification buttons)

D Song bank list

E SONG BANK CONTROLLER

(PLAY/PAUSE, STOP, REW, FF, LEFT ON/OFF, RIGHT ON/OFF)

F Speaker

G Chord name

H Percussion instrument list

I SYNCHRO/FILL-IN button

J START/STOP button

K TEMPO buttons

*

Attachment of the Score Stand

Insert both ends of the music stand provided with
the keyboard into the two holes on the top surface.

625A-E-011B

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 9 Adobe PageMaker 6.5J/PPC

E-9

Using the Display

6

3

2

4

5

1

11

10

9

1

An indicator appears next to the type of setting you are currently performing (TONE, RHYTHM,
SONG BANK).

2

Tone number, rhythm number, song number, keyboard settings value

3

Rhythm, auto-accompaniment, Song Bank tune beats

4

Tone name, rhythm name, song name, mode name, keyboard settings name

8

7

• This is how the display appears
while the Song Bank is in use.

5

Musical staff representation of notes and chords you play on the keyboard. A pedal indicator ( )
appears when the keyboard's pedal is depressed. An octave indicator ( ) appears when you
play notes in the range from C6 to C7 to indicate that their actual notation is one octave higher
than that shown on display.

6

Uses a graphic keyboard to show notes and chords played on the keyboard or played during Song
Bank tune playback

7

Auto-accompaniment, Song Bank, chord book chord names

8

Dots indicate fingerings during Song Bank playback. “L” and “R” indicate left-hand and right­hand parts.

9

Rhythm, auto-accompaniment, Song Bank tune tempo

10

Rhythm, auto-accompaniment, Song Bank tune tempo; volume setting

11

Song Bank controller indicators

❚

NOTE

• Display examples shown in this User’s Guide are intended for illustrative purposes only. The actual text and values that appear on the
display may differ from the examples shown in this User’s Guide.

E-10

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 10 Adobe PageMaker 6.5J/PPC

625A-E-012A

Song Bank Quick Reference

MAIN VOLUME

POWER/MODE PLAY/PAUSE

A selection of 100 Song Bank tunes comes built-in for your
listening pleasure or play along fun. A simple operation cuts
out the melody part or accompaniment part of the tune, al­lowing you to play along on the keyboard. See "Using the
Song Bank" on page E-22 for details on playing along with
Song Bank tunes.

Playing Back a Song Bank Tune

To play back a Song Bank tune

1.

Set the POWER/MODE switch to NORMAL.

2.

Use the MAIN VOLUME buttons to lower the
keyboard volume to a relatively low level.

SONG BANK

4.

Use the Song Bank list to find the tune you want
to play back, and then use the number buttons
to input the tune’s two-digit number.

Example: To select “62 ODE TO JOY”, input 6 and then

5.

Press the PLAY/PAUSE button to start play of the
tune.

• The tune plays in an endless loop, re-starting after it
reaches the end.

• The display shows the keyboard keys (on the graphic
keyboard), fingerings (with the fingering indicators),
musical notes (on the staff), and chord names.

Number buttons

2.

3.

Press the SONG BANK button to enter the Song
Bank Mode.

Appears when SONG BANK button is pressed

625A-E-013A

Fingers used

Chord name

Staff displayKeyboard keys used

E-11

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 11 Adobe PageMaker 6.5J/PPC

6.

Press the RIGHT ON/OFF button to turn off the
right-hand melody part and try playing along on
the keyboard.

• The display’s graphic keyboard and fingering indi­cators show you the melody notes to play.

7.

Press the RIGHT ON/OFF button again to turn
the melody part back on.

• You can also turn the accompaniment part on and off
by pressing the LEFT ON/OFF button.

TONE

STOP RIGHT ON/OFF

8.

Press the STOP button to stop playback of the
Song Bank tune.

9.

Press the TONE button to exit the Song Bank
Mode and return to the tone and rhythm selec­tion screen.

Indicator turns off

❚

NOTE

• You can also perform the following operations during play of a
Song Bank tune.

• Pause: Press the PLAY/PAUSE button.

• Fast Forward: Press the FF (fast forward) button.

• Rewind: Press the REW (rewind) button.

E-12

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 12 Adobe PageMaker 6.5J/PPC

625A-E-014A

Power Supply

This keyboard can be powered by current from a standard
household 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

1.

Remove the battery compartment cover.

2.

Load 6 AA-size batteries into the battery com­partment.

• Make sure that the positive (+) and negative (–) ends
are facing correctly.

Important Battery Information

■

The following shows the approximate battery life.

Alkaline batteries .............. 4 hours*

Manganese batteries .......... 2 hours*

* The above value is standard battery life at normal tem-

perature, with the keyboard volume at medium setting.
Temperature extremes or playing at very loud volume
settings can shorten battery life.

■

Any of the following symptoms indicate low battery pow­er. Replace batteries as soon as possible whenever any of
the following occurs.

• Dim power indicator

• Instrument does not turn on

• Display that is flickering, dim, or difficult to read

• Abnormally low speaker/headphone volume

• Distortion of sound output

• Occasional interruption of sound when playing at high

volume

• Sudden power failure when playing at high volume

• Flickering or dimming of the display when playing at

high volume

• Continued sound output even after you release a key

• A tone that is totally different from the one that is se-

lected

• Abnormal rhythm pattern and Song Bank play

• Loss of power, sound distortion, or low volume when

playing from a connected computer or MIDI device

<CTK-491 only>

• Distortion of microphone input

• Dim power supply indicator when a microphone is

used

• Sudden power failure when using the microphone

3.

Insert the tabs on the battery compartment cov­er into the holes provided and close the cover.

Tab

The keyboard may not function correctly if you load or re­place batteries with power turned on. If this happens, turn­ing the keyboard off and then back on again should return
functions back to normal.

625A-E-015B

WARNING

Misuse of batteries can cause them to leak, resulting in damage
to nearby objects, or to explode, creating the risk of fire and per­sonal injury. Always make sure you observe the following pre­cautions.

• Never try to take batteries apart or allow them to become
shorted.

• Never expose batteries to heat or dispose of them by in­cineration.

• Never mix old batteries with new ones.

• Never mix batteries of different types.

• Do not charge the batteries.

• Make sure the positive (+) and negative (–) ends of the

batteries are facing correctly.

CAUTION

Misuse of batteries can cause them to leak resulting in damage
to nearby objects, or to explode, creating the risk of fire and per­sonal injury. Always make sure you observe the following pre­cautions.

• Use only batteries that are specified for use with this prod­uct.

• Remove batteries from the product if you do not plan to
use it for a long time.

E-13

CTK481_E08_17.p65 03.10.7, 2:58 PMPage 13 Adobe PageMaker 6.5J/PPC