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E-15
Power Supply
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.
649A-E-017A
LK90TV_e_08-20.p65 04.8.18, 4:45 PM15