Casio Lk55 Instruction Manual

							E-9
General Guide
1
POWER button
2
Power indicator
3
VOLUME slider
4
MODE switch
SONG/PIANO BANK/RHYTHM CONTROLLER
5
INTRO button
6
REW button, NORMAL/FILL-IN button
7
FF button, VARIATION/FILL-IN button
8
PAUSE button, SYNCHRO/ENDING button
9
PLAY/STOP button, START/STOP button
0
Song/Piano Bank controller indicator
A
Rhythm controller indicator
B
SONG BANK button
C
PIANO BANK button
D
TEMPO buttons
E
Speaker
F
RHYTHM list
G
TONE list
H
SONG BANK/SING ALONG list
I
Display
J
PIANO BANK list
K
RHYTHM button
L
TONE buttonM
CHORD root names
N
Percussion instrument list
O
SPLIT button
P
LAYER button
Q
Voice 1 to 5
R
MIC jack
S
MIC VOLUME knob
T
SING ALONG button
U
KEY CONTROL/TRANSPOSE buttons
V
 button
W
SONG MEMORY button
X
SETTING button
Y
KEY LIGHT button
ADVANCED 3-STEP LESSON SYSTEM
Z
SCORING 1 button
[
PRACTICE PHRASE button
\
SCORING 2 button
]
STEP 1 to 3 button
^
METRONOME button
a
LEFT button, TRACK 1 button
b
RIGHT button, TRACK 2 button
c
SPEAK button
NOTE
•Key, button, and other names are indicated in the text of this manual using bold type.
•This keyboard has two PLAY/STOP buttons. In this manual, the PLAY/STOP button that is located under the SING ALONG
button is indicated as .
*1 Attaching the Score Stand
Insert the score stand into the slot at the top
of the keyboard as shown in the illustration.
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							E-10
General Guide
*2
Rear Panel
fghijf
MIDI OUT terminal
g
MIDI IN terminal
h
ASSIGNABLE JACK terminal
i
DC 9V jack
j
PHONES/OUTPUT terminal
642A-E-012A
Controller Indicators
Song/Piano Bank controller indicator
Pressing the SONG BANK, PIANO BANK, or SING ALONG button, or pressing the SONG BANK and PIANO BANK buttons at
the same time to start demo tune play causes the Song/Piano Bank controller indicator to light. This indicates that buttons 5
through 9 are currently functioning as playback control buttons.
Rhythm controller indicator
Pressing the RHYTHM button to enter the Rhythm Mode, or pressing the RHYTHM button and then the SONG MEMORY button
to enter the Song Memory mode causes the Rhythm controller indicator to light. This indicates that buttons 5 through 9 are
currently functioning as rhythm control buttons.
d
Number buttons
e
[+]
/[–]
 buttons•For input of numbers to
change a displayed number
or setting.
•Negative values cannot be
input using the number
buttons. Use [+] (increase)
and [–] (decrease) instead.
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							E-11
General Guide
4
21
6735
8
9
About the display
1.The icons that appear here indicate whether the keyboard is in the Sing Along Mode, Song Bank Mode, or Piano Bank Mode.
2.Numeric Area: This area displays tone numbers, song numbers, evaluation values, and other numeric data.
Text Area: This area displays tone names and song names. It is also used as the display area for the Evaluation Mode,
Song Memory, and other functions.
Indicator Area: This area indicates the type of data that is currently displayed in the numeric area and text area.
Example: The indicator points to “TONE” when a tone name is displayed.
3.This area is a staff notation display that shows notes being played in built-in tunes, on the keyboard, or from memory, chord
forms, and MIDI receive data.*1 Notes in the range F

6 to C7 are shown in the staff notation display one octave lower, along
with an octave up mark ().*2
If you are using a pedal, a pedal mark () appears here whenever you press the pedal.
*1 Received notes outside the range of C2 to C7 do not appear on the display.
*2 Notes in the range of C2 through B2 are not shown while the octave up mark (
) is on the display.
This area also shows dynamic marks.
4.An indicator appears next to a function that is in use: touch response, General MIDI Mode, song memory, key light, layer, split.
5.This area shows fingerings and other finger information during 3-step lesson and tune play. The letters “L” (left) and “R” (right)
appear to indicate left and right hand Auto Accompaniment parts and song memory tracks.
6.This area shows the current measure number and beat number, a graphic metronome, and the current tempo setting (beats
per minute) during rhythm, Auto Accompaniment, built-in tune, song memory play, and metronome.
7.This area shows chord names during Auto Accompaniment, Song Bank, and Sing Along play.
8.The type of star that appears here indicates the accuracy of your timing for each note you play, when the Evaluation Mode is
turned on.
9.This area displays indicators that show when 3-Step Lesson, the Evaluation Mode, or Voice Fingering is turned on.
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.
•Viewing a liquid crystal display screen from an angle can change the appearance of display contrast. The display contrast of
this keyboard is set to allow easy viewing for a person seated on a chair in front of the keyboard. Note that display contrast
is fixed, and cannot be adjusted.
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							E-12
Quick Reference
This section provides a quick overview of keyboard operation
using steps one and two of the 3-step lesson feature.
To play the keyboard
1Press the POWER button to turn on power.
•This causes the power indicator to light.
2Set the MODE switch to NORMAL.
3Press the SONG BANK button.
•This causes the SONG BANK button to light.
4Find the tune you want to play in the SONG BANK/
SING ALONG List, and then use the number
buttons to input its two-digit number.
•See page A-10 for the Song Bank/Sing Along List.
Example: To select “44 ALOHA OE”, input 4 and then
4.
5Press the STEP 1 button or STEP 2 button.
•The keyboard sounds a count beat and waits for you
to play something on the keyboard. The keys that you
need to press first flash.
6Play the melody along with the selected tune’s
accompaniment.
•Play in accordance with the fingerings, notes, and
dynamic marks that appear on the display.
Al ohaOe
Al ohaOe
Fingering
Note pitch
642A-E-014A
PIANO BANKSONG BANK
Number buttons
MODEPLAY/STOPSTEP1STEP2
POWER
POWER indicator
Lit
Indicator appears
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							E-13
If you selected lesson Step 1
•Play the notes on the keyboard.
•Accompaniment (left-hand part) plays in time with
the notes.
•With Step 1, the correct melody note is played no
matter which keyboard key you press.
If you selected lesson Step 2
•Play the correct notes on the keyboard.
•Press the keyboard key that lights. Note that with a
Piano  Bank tune, the keyboard key light turns off as
soon as you press the key.
•The keyboard key for the next note you will need to
play flashes.
•Accompaniment (left-hand part) plays in time with
the notes, as long as you press the correct keyboard
keys.
7To stop play at any time, press the PLAY/STOP
button.
To play an Etude or Concert Piece tune
1When you get to step 3 of the above procedure,
press the PIANO BANK button in place of the
SONG BANK button.
•This causes the PIANO BANK button to light.
2Find the tune you want to play in the PIANO BANK
List, and then use the number buttons to input its
two-digit number.
•See page A-11 for the Piano Bank List.
3Next, continue from step 5 of the above procedure.
Quick Reference
642A-E-015A
Indicator appears
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							E-14
Important Battery Information
The following shows the approximate battery life.
Alkaline batteries .................................... 2.7 hours
The above value is standard battery life at normal
temperature, 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 supply indicator
•Instrument does not turn on
•Dim, difficult to read display
•Abnormally low speaker/headphone volume
•Distortion of sound output
•Occasional interruption of sound when playing at high
volumes
•Sudden power failure when playing at high volumes
•Dimming of the display when playing at high volume
•Continued sound output even after you release a key
•A totally different tone may sound
•Abnormal rhythm pattern and demo tune play
•Abnormally low microphone volume
•Distortion of microphone input
•Dim power supply indicator when a microphone is used
•Sudden power failure when using the microphone
•Dimming of keyboard lights when notes sound
•Loss of power, sound distortion, or low volume when
playing from a connected computer or MIDI device
 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.
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
1Remove the battery compartment cover.
2Load 6 AA-size batteries into the battery
compartment.
•Make sure that the positive (+) and negative (–) ends
are facing correctly.
3Insert the tabs on the battery compartment cover
into the holes provided and close the cover.
NOTE
•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.
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							E-15
 CAUTION
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.
•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.
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 malfunction.
Auto Power Off
When you are using battery power, keyboard power turns
off automatically whenever you leave it on without
performing any operation for about 6 minutes. When this
happens, press the POWER button to turn power back on.
NOTE
•Auto Power Off is disabled (it does not function) whenyou 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.
NOTE
•When this function is turned off, the keyboard does not
turn off automatically no matter how long it is left with
no operation being performed.
•Auto Power Off is enabled again when you manually
turn off power and then turn it back on again.
Power Supply
Using the AC Adaptor
Make sure that you use only the AC adaptor specified for
this keyboard.
Specified AC Adaptor: AD-5
[Rear Panel]
Also note the following important warnings and precautions
when using the AC adaptor.
 WARNING
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.
•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.
•Never touch the AC adaptor while your hands are wet.
Doing so creates the risk of electric shock.
642A-E-017A
DC 9V jack
AC adapter AD-5
AC outlet
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							E-16
Power Supply
642A-E-018A
Power On Alert
Keyboard keys light to alert you if you leave power on and
do not perform any operation for about 6 minutes. Note that
keys light only, and no sound is produced. When this
happens, press any button or keyboard key to clear the power
on alert.
NOTE
•Power on alert operates only when you are powering
the keyboard using the AC adaptor. It does not operate
when you are using batteries.
To disable Auto Power Off and power
on alert
Hold down the TONE button while turning on the keyboard
to disable Auto Power Off and power on alert.
•When these functions are turned off, the keyboard does not
turn off automatically and no alert is performed no matter
how long it is left with no operation being performed.
•Auto Power Off and power on alert are enabled again when
you manually turn off power and then turn it back on again.
Settings and Memory Contents
Settings
Tone, rhythm, and other “main keyboard settings” in effect
when power is turned off manually with the POWER button
or automatically by Auto Power Off remain in effect when
you next turn power back on.
Main Keyboard Settings
Main keyboard settings are: layer, split, split point,
touch response, rhythm number, rhythm tempo,
accompaniment volume, layered tone, split tone,
layered split tone, General MIDI mode on/off, accomp
MIDI OUT on/off, Assignable jack setting, keyboard
channel, and voice fingering guide on/off.
Song Memory Contents
In addition to the above settings, data stored using the song
memory function is also retained.
Electrical Power
The settings and memory data described above are retained
as long as the keyboard is being supplied with electrical
power. Unplugging the AC adaptor when batteries are not
loaded or when loaded batteries are dead cuts off the
keyboard’s electrical power supply. This causes all settings
to be initialized to their factory defaults and clears all data
stored in memory.
Power Requirements
Note the following precautions whenever you want to ensure
that current keyboard settings and memory contents are not
lost.
•Make sure the keyboard is being supplied power through
the AC adaptor before replacing its batteries.
•Before unplugging the AC adaptor, make sure that fresh
batteries are loaded in the keyboard.
Make sure that keyboard power is turned off before replacing
batteries or unplugging the AC adaptor.
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							E-17
Connections
Phones/Output Terminal
PREPARATION
•Before connecting headphones or other external
equipment, be sure to first turn down the volume settings
of the keyboard and the connected equipment. You can
then adjust volume to the desired level after connections
are complete.
[Rear Panel]
White
RedPIN plug Stereo standard 
plugAudio connection PHONES/OUTPUT terminalKeyboard amp, 
guitar amp, etc.
1
LEFTRIGHTAUX IN or similar terminal
of audio amplifier2 3
Connecting Headphones (Figure 1
)
Connecting headphones cuts off output from the keyboard’s
built-in speakers, so you can play even late at night without
disturbing anyone.
Audio Equipment (Figure 2
)
Connect the keyboard to a audio equipment using a
commercially available connecting cord with a standard plug
on one end and two PIN plugs on the other end. Note that
the standard plug you connect to the keyboard must be a
stereo plug, otherwise you will be able to output only one of
stereo channels. In this configuration, you normally set the
input selector of the audio equipment to the terminal (usually
marked AUX IN or something similar) where the cord from
the keyboard is connected. See the user documentation that
comes with your audio equipment for full details.
Musical Instrument Amplifier (Figure 3
)
Use a commercially available connecting cord to connect the
keyboard to a musical instrument amplifier.
NOTE
•Be sure to use a connecting cord that has a stereo
standard plug on the end you connect to the keyboard,
and a connector that provides dual channel (left and
right) input to the amplifier to which you are connecting.
The wrong type of connector at either end can cause
one of the stereo channels to be lost.
When connected to a musical instrument amplifier, set the
volume of the keyboard to a relatively low level and make
output volume adjustments using the amplifier’s controls.Connection Example
INPUT 1INPUT 2
PIN jackPIN plug (red)
PIN plug (white)
Stereo standard plugKeyboard or 
guitar amp To keyboard’s 
PHONES/OUTPUT 
terminal
Standard plug
Connecting to a Computer or
Other Equipment
You can also connect the keyboard to a computer or sequencer.
See “MIDI” on page E-51 for details.
Assignable jack Terminal
You can connect an optional sustain pedal (SP-2 or SP-20) to
the ASSIGNABLE JACK terminal to enable the capabilities
described below.
For details on how to select the pedal function you want, see
“ASSIGNABLE JACK (Default: SUS)” on page E-55.
SP-20
ASSIGNABLE JACK Terminal
Sustain Pedal
•With piano tones, depressing the pedal causes notes to
linger, much like a piano’s damper pedal.
•With organ tones, depressing the pedal causes notes to
continue to sound until the pedal is released.
Sostenuto Pedal
•As with the sustain pedal function described above,
depressing the sostenuto pedal causes notes to be sustained.
•This difference between a sostenuto pedal and sustain pedal
is the timing. With a sostenuto pedal, you press the keys
and then depress the pedal before you release the keys.
•Only the notes that are sounding when the pedal is
depressed are sustained.
Soft Pedal
Depressing the pedal softens the sound of the notes being
played.
Rhythm Start/Stop Pedal
In this case, the pedal performs the same functions as the
START/STOP button.
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							E-18
Microphone Jack
You can connect a commercially available microphone to the
microphone jack and sing along with notes played on the
keyboard. For details, see “Using a Microphone for Sing
Along” on page E-32.
Accessories and Options
Use only the accessories and options specified for this
keyboard. Use of non-authorized items creates the danger of
fire, electrical shock, and personal injury.
Connections
642A-E-020A
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