Yamaha MU15 Owner's Manual page 3

PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep these precautions in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from
electrical shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not limited
to, the following:
• Do not open the instrument or attempt to disassemble the
internal parts or modify them in any way. The instrument
contains no user-serviceable parts. If it should appear to be
malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.
• Do not expose the instrument to rain, use it near water or in
damp or wet conditions, or place containers on it containing
liquids which might spill into any openings.
• If the AC adaptor cord or plug becomes frayed or damaged, or
if there is a sudden loss of sound during use of the instrument,
or if any unusual smells or smoke should appear to be caused
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or
damage to the instrument or other property. These precautions include, but are not limited to, the following:
• Do not place the AC adaptor cord near heat sources such as
heaters or radiators, and do not excessively bend or otherwise
damage the cord, place heavy objects on it, or place it in a
position where anyone could walk on, trip over, or roll anything
over it.
• When removing the electric plug from the instrument or an
outlet, always hold the plug itself and not the cord.
• Do not connect the instrument to an electrical outlet using a
multiple-connector. Doing so can result in lower sound quality,
or possibly cause overheating in the outlet.
• Unplug the AC power adaptor when not using the instrument,
or during electrical storms.
• Always make sure all batteries are inserted in conformity with
the +/- polarity markings. Failure to do so might result in
overheating, fire, or battery fluid leakage.
• Always replace all batteries at the same time. Do not use new
batteries together with old ones. Also, do not mix battery types,
such as alkaline batteries with manganese batteries, or
batteries from different makers, or different types of batteries
from the same maker, since this can cause overheating, fire,
or battery fluid leakage.
• Do not dispose of batteries in fire.
• Do not attempt to recharge batteries that are not intended to
be charged.
• If the instrument is not to be in use for a long time, remove the
batteries from it, in order to prevent possible fluid leakage from
the battery.
• Keep batteries away from children.
• Before connecting the instrument to other electronic
components, turn off the power for all components. Before
turning the power on or off for all components, set all volume
levels to minimum.
• Do not expose the instrument to excessive dust or vibrations,
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PRECAUTIONS
• Use the specified adaptor (PA-3B or an equivalent
• Before cleaning the instrument, always remove the electric
• Check the electric plug periodically and remove any dirt or dust
• Do not use the instrument near other electrical products such
• Do not place the instrument in an unstable position where it
• Before moving the instrument, remove all connected adaptor
• When cleaning the instrument, use a soft, dry cloth. Do not
• Do not rest your weight on, or place heavy objects on the
• Do not operate the instrument for a long period of time at a
SAVING USER DATA
• Save all data to an external device such as the Yamaha MIDI
Always turn the power off when the instrument is not in use.
Make sure to discard used batteries according to local regulations.
by it, immediately turn off the power switch, disconnect the
adaptor plug from the outlet, and have the instrument inspected
by qualified Yamaha service personnel.
recommended by Yamaha) only. Using the wrong adaptor can
result in damage to the instrument or overheating.
plug from the outlet. Never insert or remove an electric plug
with wet hands.
which may have accumulated on it.
or extreme cold or heat (such as in direct sunlight, near a heater,
or in a car during the day) to prevent the possibility of panel
disfiguration or damage to the internal components.
as televisions, radios, or speakers, since this might cause
interference which can affect proper operation of the other
products.
might accidentally fall over.
and other cables.
use paint thinners, solvents, cleaning fluids, or chemical-
impregnated wiping cloths. Also, do not place vinyl, plastic or
rubber objects on the instrument, since this might discolor the
panel or keyboard.
instrument, and do not use excessive force on the buttons,
switches or connectors.
high or uncomfortable volume level, since this can cause
permanent hearing loss. If you experience any hearing loss or
ringing in the ears, consult a physician.
Data Filer MDF3, in order to help prevent the loss of important
data due to a malfunction or user operating error.
Yamaha cannot be held responsible for damage caused by
improper use or modifications to the instrument, or data that is
lost or destroyed.
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