Casio LK93TV - Manual (Page 16)

E-14
Power Supply
659A-E-016A
Note the following important precautions to avoid damage
to the power cord.
●During Use
• Never pull on the cord with excessive force.
• Never repeatedly pull on the cord.
• Never twist the cord at the base of the plug or connector.
• The power cord should not be stretched tight while it is
in use.
●During Movement
• Before moving the keyboard, be sure to unplug the AC
adaptor from the power outlet.
●During Storage
• Loop and bundle the power cord, but never wind it
around the AC adaptor.
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) when
you 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 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
1
Press the FUNCTION button a number of times until
“DEMO 2” appears on the display.
2
Use the [+] and [–] buttons to change the setting to
“oFF”.
3
Press 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.