Casio Musical Instrument LK50 User Manual

USER’S GUIDE  
GUÍA DEL USUARIO  
P
LK50-ES-1  
 
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  
 
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  
 
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.  
E-4  
474A-E-006A  
 
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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