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E-16
Power Supply
642A-E-018A
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.
Settings and Memory Contents
Settings
Tone, rhythm, and other “main keyboard settings” in effect
when power is turned off manually with the POWER button
or automatically by Auto Power Off remain in effect when
you next turn power back on.
Main Keyboard Settings
Main keyboard settings are: layer, split, split point,
touch response, rhythm number, rhythm tempo,
accompaniment volume, layered tone, split tone,
layered split tone, General MIDI mode on/off, accomp
MIDI OUT on/off, Assignable jack setting, keyboard
channel, and voice fingering guide on/off.
Song Memory Contents
In addition to the above settings, data stored using the song
memory function is also retained.
Electrical Power
The settings and memory data described above are retained
as long as the keyboard is being supplied with electrical
power. Unplugging the AC adaptor when batteries are not
loaded or when loaded batteries are dead cuts off the
keyboard’s electrical power supply. This causes all settings
to be initialized to their 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.
LK55_e_08-21.p65 03.10.7, 5:30 PM16