Casio LK-40 Electronic Keyboard User Manual


 
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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 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 when-
ever you leave it on without performing any operation for about 6 minutes. When
this happens, move the POWER/MODE selector to the OFF position and then back to
NORMAL, CASIO CHORD, or FINGERED 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.
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.
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