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E-15
Power Supply
Using the AC Adaptor
Make sure that you use only the AC adaptor specified for
this keyboard.
Specified AC Adaptor: AD-5
[Rear Panel]
Also note the following important warnings and precautions
when using the AC adaptor.
WARNING
Misuse of the AC adaptor creates the risk of fire and electric
shock. Always make sure you observe the following
precautions.
• Be sure to use only the AC adaptor that is specified
for this product.
• Use only a power source whose voltage is within the
rating marked on the AC adaptor.
• Do not overload electrical outlets and extension cords.
• Never place heavy objects on the cord or subject it to
heat.
• Never try to modify the cord or subject it to excessive
bending.
• Never twist or stretch the cord.
• Should the electric cord or plug become damaged,
contact your original retailer or authorized CASIO
Service Provider.
• Never touch the AC adaptor while your hands are wet.
Doing so creates the risk of electric shock.
DC 9V jack
AC adapter AD-5
AC outlet
CAUTION
Misuse of the AC adaptor creates the risk of fire and electric
shock. Always make sure you observe the following
precautions.
• Do not locate the electric cord near a stove or other
sources of heat.
• Never pull on the cord when unplugging from the
electrical outlet. Always grasp the AC adaptor when
unplugging.
• Insert the AC adaptor into the wall outlet as far as it
will go.
• Unplug the AC adaptor from the wall outlet during
lightening storms or before leaving on a trip or other
long-term absence.
• At least once a year, unplug the AC adaptor from the
wall outlet and wipe away any dust that is built up in
the area around the prongs of the plug.
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.
704A-E-017A
CTK591_e_08-21.p65 03.10.7, 4:27 PM15