USER’S GUIDE
GUÍA DEL USUARIO
P
LK50-ES-1
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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.
474A-E-002A
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Welcome...
To the happy family of satisfied CASIO electronic musical instrument owners! To get the most out of the
many features and functions of the keyboard, be sure to carefully read this manual and keep it on hand
for future reference.
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 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
• Abnormal rhythm pattern and demo tune play
• Dimming of keyboard lights when notes sound.
• Loss of power, sound distortion, or low volume when playing from a connected computer or MIDI device
Use of any other corporate or product name should not be regarded as affecting the validity of any
trademark or service mark. All other product and company names mentioned herein may be the trade-
marks of their respective owners.
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.
474A-E-003A
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Main Features
❐ 137 tones
• Everything from orchestra instruments to synthesized sounds, drum sets and more.
❐ 100 rhythms
• A selection of rhythms that cover rock, pops, jazz and just about any other musical style imaginable.
❐ Auto Accompaniment
• Simply specify a chord and the keyboard automatically plays the correct rhythm, bass, and chord parts.
❐ 100 built-in tunes
• A simple operation cuts out the melody part of any of the 100 Song Bank tunes so you can play along on the keyboard.
❐ Key Light System with 3-step lesson
• Use any of the 100 Song Bank tunes to learn to play as the keyboard keys light to teach you the correct notes. First practice the timing of the notes.
Next, play along at your own pace. Soon you will be ready for step three, where you play along at normal speed.
• Note that key lights may be difficult to see under direct sunlight or under other very bright lighting.
❐ Big display with a wealth of musical information
• A big, informative display shows you which fingers to use, which keys to press, staff notation of the notes being played, and much more.
❐ Memory function
• Record up to two parts in memory for later playback. Realistic ensemble play can also be created using the Auto Accompaniment function.
❐ General MIDI compatibility
• General MIDI tones let you connect to a personal computer and enjoy “desktop music” capabilities. This keyboard can be used as a desktop
music input device or as a sound source, and it’s just the thing for play back of commercially available pre-recorded General MIDI music
software.
❐ Keys light to show received MIDI messages
• The keyboard can be set up so its keys light in accordance with the channels of commercially available General MIDI music software. You can
even turn off the output of a channel and play along on the keyboard.
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474A-E-004A
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Safety Precautions
Symbols
WARNING
Various symbols are used in this operating manual 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.
Please use caution regarding the handling of the AC
adaptor.
• Do not use a voltage other than the indi-
cated power supply voltage. Use of a volt-
age other than that indicated may cause
fire or electrical shock.
• If the power cord should become damaged
(exposed wires, disconnection, etc.), pur-
chase a new AC adaptor. Use of a damaged
power cord may cause fire or electrical
shock.
• Do not cut or damage the power cord. Also
do not place heavy objects on top of it or
subject it to excessive heat. Damage to the
power cord may cause fire or electrical
shock.
• Do not attempt to shape the power cord or
subject it to excessive bending, twisting or
pulling. This may cause fire or electrical
shock.
• Please use the adaptor specified for this
instrument. Use of another adaptor may
cause fire, electrical shock, or malfunction.
WARNING
This indication stipulates matters that have the risk of
causing death or serious injury if the product is oper-
ated 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 in-
dication.
Symbol Examples
This triangle symbol ( ) means that the
user should be careful. (The example at
left indicates electrical shock caution.)
Do not locate the instrument or its stand on an uneven
or unstable surface.
• Locating the instrument or its stand on an
uneven or unstable surface can cause it to
fall, creating the danger of personal injury.
This circle with a line through it ( ) means
that the indicated action must not be per-
formed. Indications within or nearby this
symbol are specifically prohibited. (The ex-
ample at left indicates that disassembly is
prohibited.)
Do not place containers containing water or other liq-
uids on the instrument.
The black dot ( ) means that the indi-
cated action must be performed. Indica-
tions 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.)
• Do not place the following objects on the
instrument. Placing such objects on the in-
strument may cause fire or electrical shock
if they spill and get inside the instrument.
• Containers filled with water or other liq-
uids (including vases, potted plants, cups,
cosmetics and medicines)
• Small metal objects (including hairpins,
sewing needles and coins)
• Flammable objects
In the event a foreign object should happen
to get inside the instrument, please take the
following actions:
1. Turn power off.
2. Unplug the AC adaptor from the wall
outlet.
3. If there are any batteries loaded in the
keyboard, remove them.
• Do not touch the batteries directly with
your hands when removing them. They
may be hot or battery fluid may be leak-
ing from them.
4. Consult with the dealer where you pur-
chased the keyboard or with an autho-
rized CASIO service provider.
474A-E-005A
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Do not disassemble or modify the instrument.
• Never attempt of take apart or modify the
instrument, its accessories, or separately
sold options. Doing so may cause fire, elec-
trical shock or malfunction. Consult your
dealer concerning all inspection, adjustment
or repair of internal components.
CAUTION
AC Adaptor
• Do not locate the power cord in close prox-
imity to heaters or other heating appliances.
This may cause the cord to melt leading to
possible fire or electrical shock.
• When unplugging the AC adaptor from an
electrical outlet, always make sure to pull
on the adaptor itself and not the cord. Pull-
ing excessively on the cord may cause it to
be damaged or break leading to possible
fire or electrical shock.
• Do not touch the AC adaptor with wet
hands when it is plugged in. This may cause
electrical shock.
• When not using the instrument for an ex-
tended period such as when traveling, al-
ways make sure to unplug the AC adaptor
from the electrical outlet for safety reasons.
• After use turn off the power switch of the
instrument and unplug the AC adaptor
from the electrical outlet.
Do not use if there is an abnormality or malfunction.
• Do not use the instrument if there appear
to be abnormalities such as the presence of
smoke or abnormal odor. Also do not use
the instrument if there appear to be mal-
functions such as the power not coming on
or sound not being produced. Use under
such conditions may cause fire or electrical
shock. In such cases, take the following ac-
tions immediately. Never attempt to repair
the instrument yourself.
1. Turn power off.
2. Unplug the AC adaptor from the wall
outlet.
3. If there are any batteries loaded in the
keyboard, remove them.
• At least once a year, unplug the AC adap-
tor from the power outlet and clean the
area around the prongs of the plug. Dust
build up around the prongs can create the
danger of fire.
• Do not touch the batteries directly with
your hands when removing them. They
may be hot or battery fluid may be leak-
ing from them.
4. Consult with the dealer where you pur-
chased the keyboard or with an autho-
rized CASIO service provider.
Batteries
• Improper battery use may cause batteries
to rupture and leak. This may cause injury,
malfunction of the instrument or discolora-
tion of furniture and other articles that come
into contact with battery fluid. Take care to
observe the following.
When the instrument has been dropped:
• In the case the instrument has been dropped
or damaged, take the following actions.
Continued use may cause fire or electrical
shock.
• Install batteries so their polarity (+/–)
matches that indicated on the instrument.
• For safety and to prevent possible leakage
of battery fluid, always make sure to re-
move batteries from the instrument when
you do not plan to use it for a long time.
• Always make sure that the batteries mak-
ing up a set are all of the same type.
• Never combine new batteries with old
ones.
• Never dispose of batteries by incinerat-
ing them. Never short or disassemble bat-
teries, and do not expose them to exces-
sive heat.
1. Turn power off.
2. Unplug the AC adaptor from the wall
outlet.
3. If there are any batteries loaded in the
keyboard, remove them.
• Do not touch the batteries directly with
your hands when removing them. They
may be hot or battery fluid may be leak-
ing from them.
4. Consult with the dealer where you pur-
chased the keyboard or with an autho-
rized CASIO service provider.
Be careful of the bags around children.
• Never allow anyone to place the plastic bags
of the instrument, its accessories, and its
separately sold options over their heads.
Doing so may cause suffocation. Particular
caution is required in homes with small
children.
• Replace dead batteries as soon as possible.
• Never attempt to recharge batteries.
Transport
• When transporting the instrument, always
make sure to unplug the AC adaptor from
the electrical outlet and confirm that all
other external connections have been dis-
connected. Only then should the instrument
be transported. If the above is not done, the
cord may be damaged leading to possible
fire or electrical shock.
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474A-E-006A
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Care of your
keyboard
Care
• Whenever caring, make sure to first un-
plug the AC adaptor from the electrical out-
let. Also remove the instrument’s batteries
if battery power is being used.
Avoid heat, humidity or direct sunlight.
Do not overexpose the instrument to direct sunlight, or place it near
an air conditioner, or in any extremely hot place.
Location
• Never locate the instrument in areas sub-
ject to high humidity or heavy accumula-
tion of dust. Doing so may cause fire or
electrical shock.
Do not use near a TV or radio.
This instrument can cause video or audio interference with TV and
radio reception. If this happens, move the instrument away from the
TV or radio.
• Never locate the instrument in areas sub-
ject to grease splatters or steam, such as in a
kitchen or near a humidifier. Doing so may
cause fire or electrical shock.
Do not use lacquer, thinner or similar chemi-
cals for cleaning.
Clean the keyboard with a soft cloth dampened in a weak solution of
water and a neutral detergent. Soak the cloth in the solution and
squeeze until it is almost dry.
Do not place keyboard on lacquered furniture.
• The instrument’s silicone rubber feet may
eventually blacken or scar lacquered sur-
faces. Use felt cloth pads to insulate the feet
or preferably use a CASIO musical instru-
ment stand designed for your keyboard.
Avoid use in areas subjected to temperature
extremes.
Extremely high or low temperature can cause figures on the LCD
screen to become dim and difficult to read. This condition should
correct itself when the keyboard is brought back to normal tempera-
ture.
Do not place heavy objects on the instrument.
• Do not place heavy objects on the instru-
ment. This may cause the instrument to tip
over or break resulting in injury.
Volume
• Very high volume levels can damage hear-
ing. Avoid using the instrument at very
high volume settings for long periods. Con-
sult with a physician immediately if you
experience impaired hearing or ringing in
the ears.
❚ NOTE ❚
You may notice lines in the finish of the case of this keyboard. These lines
are a result of the molding process used to shape the plastic of the case.
They are not cracks or breaks in the plastic, and are no cause for concern.
Liquid Crystal Display (LCD) Precautions
• Avoid subjecting the keyboard's LCD to
strong impact, which can crack or break the
LCD's glass creating the danger of personal
injury.
• Should the LCD glass ever crack or break,
do not allow the liquid inside the LCD to
come into contact with your skin, which
can cause inflammation and reddening.
*Should the LCD liquid get into your
mouth, immediately wash out your mouth
with water and then consult a physician.
*Should the LCD liquid get in your eyes or
on your skin, immediately flush with wa-
ter for at least 15 minutes and then consult
a physician.
Do not get onto the instrument or stand.*
• Do not crawl on top of the instrument or its
optional stand. Particular caution is re-
quired in homes having small children. This
may cause the instrument or stand to tip
over and break resulting in injury.
Optional Stand*
• Carefully assemble the stand following the
assembly instructions that come with it. Se-
curely tighten all bolts, nuts, and fasteners,
and make sure that you mount the instru-
ment correctly onto the stand. Incorrectly
or insufficiently tightening screws, or in-
correctly mounting the instrument onto the
stand can cause the stand to tip over or the
instrument to fall off the stand, possibly
leading to injury.
* The stand is available as an option.
474A-E-007A
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