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Casio LK-50 Owner's Manual

Download Power supply manual of Casio LK-50 Battery Charger, Electronic Keyboard for Free or View it Online on All-Guides.com.

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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 re-

placing 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 fac-

ing correctly.

3. Insert the tabs on the battery compartment cover into

the holes provided and close the cover.

The keyboard may not function correctly if you load or replace bat-

teries with power turned on. If this happens, turning the keyboard

off and then back on again should return functions back to normal.

Important Battery Information

■

The following shows the approximate battery life.

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

(Manganese batteries ......................................... 30 minutes)

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.

❚

NOTE

❚

We recommend that you use the separately available AC adaptor or alka-

line batteries to power this keyboard.

■

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

• 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

IMPORTANT!

Improper handling of batteries can cause them to burst and leak,

which creates the danger of personal injury or damage due to contact

with battery acid. Be sure to note the following important precautions.

• Always make sure that the positive (+) and negative (–) poles are

facing correctly as indicated inside the battery compartment.

• To avoid damage caused by leaking batteries, be sure to remove

batteries from the keyboard whenever you leave it unattended for

long periods (such as when leaving on a trip).

• Never mix batteries of different types.

• Never mix old batteries with new ones.

Power Supply

• Never discard batteries by incinerating them, do not allow their

poles to be shorted (connected to each other), never take batteries

apart, and do not expose batteries to direct heat.

• Replace batteries as soon as possible after any sign they are get-

ting weak.

• Never attempt to recharge batteries.

Using the AC Adaptor

Make sure that you use only the AC adaptor specified for this key-

board.

Specified AC Adaptor: AD-5

Also note the following important warnings and precautions when

using the AC adaptor.

WARNING!

• Take care to avoid any damage to or breakage of the power cord. Never

place any heavy objects on the power cord or expose it to direct heat.

Doing so creates the danger of power cord damage, fire, and electrical

shock.

• Use only the specified AC adaptor. Use of another type of adaptor cre-

ates the danger of fire and electrical shock.

CAUTION!

• For safety sake, be sure to unplug the AC adaptor from the wall outlet

whenever leaving the keyboard unattended for a long time (such as

when leaving on a trip).

• Always turn off the keyboard and unplug the AC adaptor from the wall

outlet when you are not using the keyboard.

IMPORTANT!

• Make sure that the keyboard is turned off before connecting or dis-

connecting 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 auto-

matically whenever you leave it on without performing any opera-

tion for about 6 minutes. When this happens, press the POWER but-

ton to turn power back on.

❚

NOTE

❚

Auto Power Off is disabled (it does not function) when you are using the

AC adaptor to power the keyboard.

474A-E-014A

OUT IN

MIDI

PHONES/

OUTPUT

ASSIGNABLE

JACK

DC 9V

DC 9V jack

AC adaptor AD-5

AC outlet