Casio Lk90tv Instruction Manual

							E-9
General Guide
1
MIC VOLUME knob
2
KEY CONTROL/TRANSPOSE buttons
3
SING ALONG button
4
 button
5
SONG MEMORY button
6
FUNCTION button
7
DEMO button
8
KEY LIGHT button
9
DATA ACCESS lamp
0
RHYTHM button
A
TONE button

ADVANCED 3-STEP LESSON SYSTEM
B
PRACTICE PHRASE button
C
SCORING 1 to 3 button
D
STEP 1 to 3 button
E
SPEAK button
F
METRONOME button
G
LEFT button, TRACK 1 button
H
RIGHT button, TRACK 2 button
I
Speaker
J
MIC IN jack
K
RHYTHM list
L
TONE list
M
SONG BANK/SING ALONG listN
Display
O
PIANO BANK list
P
CHORD root names
Q
Percussion instrument list
R
SPLIT button
S
LAYER button
T
Voice 1 to 5 list
U
POWER button
V
Power indicator
W
MAIN VOLUME slider
X
MODE switch

SONG/PIANO BANK/RHYTHM CONTROLLER
Y
REPEAT button, INTRO button
Z
REW button, NORMAL/FILL-IN button
[
FF button, VARIATION/FILL-IN button
\
PAUSE button, SYNCHRO/ENDING button
]
PLAY/STOP button, START/STOP button
_
Song/Piano Bank controller indicator
a
Rhythm controller indicator
b
SONG BANK button
c
PIANO BANK button
d
CARD button
e
TEMPO buttons
NOTE
•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 .
649A-E-011A
Controller Indicators
Song/Piano Bank controller indicator
Pressing the SONG BANK, PIANO BANK, or SING ALONG button, or pressing the DEMO button to start demo tune play causes
the Song/Piano Bank controller indicator to light. This indicates that buttons Y through ] 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 Y through ] are
currently functioning as rhythm control buttons.
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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General Guide
*2
Rear Panel
ijk
i
SUSTAIN/ASSIGNABLE JACK
j
DC 9V jack
k
PHONES/OUTPUT jack
649A-E-012A
f
Number buttons
g
[+]
/[–]
 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.
h
Card slot
h
l
USB port
m
VIDEO OUT jack
*3
lm
*1 Attaching the Score Stand
Insert both ends of the music stand provided
with the keyboard into the two holes on the
top surface.
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							E-11
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.
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-9 for the Song Bank/Sing Along List.
Example: To select “58 ALOHA OE”, input 5 and then
8.
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.
AlohaOe
Lit
Indicator appears
Al ohaOe
Fingering Note pitch
649A-E-013A
PIANO BANKSONG BANK
Number buttons
MODEPLAY/STOPSTEP1STEP2
POWER
POWER indicator
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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.
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-9 for the Piano Bank List.
3Next, continue from step 5 of the above procedure.
Quick Reference
Indicator appears
649A-E-014A
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							E-13
Important Battery Information
The following shows the approximate battery life.
Alkaline batteries .................................... 2.5 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
 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.
649A-E-015A
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 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.
•Use the AC adaptor where it will not be splashed with
water. Water creates the risk of fire and electric shock.
•Do not place a vase or any other container filled with
liquid on top of the AC adaptor. Water creates the risk
of fire and electric shock.
DC 9V jack
AC adaptor AD-5
AC outlet
649A-E-016A
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Power Supply
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 turn off power on alert
1Press the FUNCTION button a number of times until
“DEMO 2” appears on the display.
2Use the [+] and [–] buttons to change the setting to
“oFF”.
3Press the FUNCTION button to clear the setting
screen from the display.
Memory Contents
Even when the keyboard is turned off, song memory contents
are retained as long as power is being supplied to the
keyboard.
Unplugging the AC adaptor when batteries are not loaded
or when batteries are dead cuts off the power supply. This
causes all keyboard settings to be initialized to the initial
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.
649A-E-017A
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Connections
Phones/Output Jack
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 jack
Keyboard 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
USB port
You can also connect the keyboard to a computer. See
“Connecting to a Computer” on page E-50 for details.
Sustain/Assignable Jack
You can connect an optional sustain pedal (SP-3 or SP-20) to
the SUSTAIN/ASSIGNABLE JACK to enable the capabilities
described below.
For details on how to select the pedal function you want, see
“SUSTAIN/ASSIGNABLE JACK (Default: SUS)” on page E-
53.
SP-20
SUSTAIN/ASSIGNABLE JACK
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.
INPUT 1INPUT 2
PIN jackPIN plug (red)
PIN plug (white)
Stereo standard plugKeyboard or 
guitar amp To keyboard’s 
PHONES/OUTPUT 
jack
Standard plug
649A-E-018A
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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-31.
VIDEO OUT Jack
You con connect the keyboard to a TV equipped with a video
input jack, and view lessons*1 and song lyrics*2 on the TV
screen.
*1: Lessons using built-in tunes or SMF data
*2: Built-in tunes with lyric data or commercially available
SMF data with lyric data
Connecting to a TV
IMPORTANT!
•Make sure that both the keyboard and the TV are turned
off before connecting them.
•Placing the keyboard on top of or too close to the TV
can cause problems with the colors that appear on the
TV screen. Keep the keyboard away from the TV.
Use the bundled video cable to connect the keyboard to a TV
as shown below.
•Turn on the TV and perform the required operation to select
its video input terminal.
•Turn on the keyboard.
[Rear Panel]
Connections
IMPORTANT!
•See the user documentation that comes with your TV
for information about how to configure the required
settings.
•A TV normally supports either NTSC or PAL as its color
system. The system supported by your keyboard
matches the system used in the geographic area where
you purchased it. The color system is also indicated on
the rating plate on the bottom of the keyboard.
Images will not appear correctly on the TV screen if its color
system does not match the color system of the keyboard.
Make sure you check with your retailer before purchasing
the keyboard outside of the area where you will normally
use it.
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.
Keyboard Model Supported Color System
LK-90TV-N/LK-92TV NTSC
LK-90TV-P PAL
TV / VIDEO
VIDEO OUT jackBundled video cable
To video
input terminalVideo input port
(Yellow)
(Example)
TV with video input terminal
Turn on the TV and
select its video input 
terminal.
649A-E-019A
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Basic Operations
This section provides information on performing basic
keyboard operations.
To play the keyboard
1Press the POWER button to turn the keyboard on.
2Set the MODE switch to NORMAL.
3Use the MAIN VOLUME slider to set the volume
to a relatively low level.
4Play something on the keyboard.
Selecting a Tone
This keyboard comes with 264 built-in tones. Use the
following procedure to select the tone you want.
To select a tone
1Find the tone you want to use in the TONE List and
note its tone number.
•Not all of the available tones are shown on the tone
list printed on the keyboard console. For a complete
list, see the “Tone List” on page A-1.
•If the keyboard is connected to a TV, the tone list
appears on the TV screen. For information about
connecting to a TV, see “VIDEO OUT Jack” on page
E-17.
2Press the TONE button.
3Use the number buttons to input the three-digit tone
number of the tone you want to select.
Example: To select “049 ACOUSTIC BASS”, input 0, 4
and then 9.
NOTE
•Always input all three digits for the tone number,
including leading zeros (if any). If you input one or two
digits and stop, the display will automatically clear your
input after a few seconds.
•You can also increment the displayed tone number by
pressing [+] and decrement it by pressing [–].
•When one of the drum sets is selected (tone numbers
256 through 263), each keyboard key is assigned a
different percussion sound. See page A-4 for details.
Aco . Bs as
Indicator appears
649A-E-020B
KEY LIGHTTONE
Number buttons
[+] / [–]
MODEPOWERMAIN VOLUME
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