PRECAUTIONS
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 expose the instrument to excessive dust or vibrations, 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.
• Do not use the instrument near other electrical products such as televisions, radios,
or speakers, since this might cause interference which can affect proper operation
of the other products.
• Do not place the instrument in an unstable position where it might accidentally fall
over.
• Before moving the instrument, remove all connected adaptor and other cables.
• When cleaning the instrument, use a soft, dry cloth. Do not 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.
• Do not rest your weight on, or place heavy objects on the instrument, and do not
use excessive force on the buttons, switches or connectors.
• Use only the stand/rack specified for the instrument. When attaching the stand or
rack, use the provided screws only. Failure to do so could cause damage to the
internal components or result in the instrument falling over.
• Do not operate the instrument for a long period of time at a 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.
Yamaha cannot be held responsible for damage caused by improper use or modifications
to the instrument, or data that is lost or destroyed.
Always turn the power off when the instrument is not in use.
Make sure to discard used batteries according to local regulations.
The illustrations as shown in this owner’s manual are for instructional purposes
only, and may be different from the ones your instrument.
• 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 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.
• Use the specified adaptor (PA-3B, PA-3, PA-4, PA-40 or an equivalent
recommended by Yamaha) only. Using the wrong adaptor can result in damage
to the instrument or overheating.
• Before cleaning the instrument, always remove the electric plug from the outlet.
Never insert or remove an electric plug with wet hands.
• Check the electric plug periodically and remove any dirt or dust which may
have accumulated on it.
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.
• When the batteries run out, or if the instrument is not to be used for a long time,
remove the batteries from the instrument to prevent possible leakage of the battery
fluid.
• Keep batteries away from children.
• If the batteries do leak, avoid contact with the leaked fluid. If the battery fluid should
come in contact with your eyes, mouth, or skin, wash immediately with water and
consult a doctor. Battery fluid is corrosive and may possibly cause loss of sight or
chemical burns.
• 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. Also, be sure to set the volumes of all components at
their minimum levels and gradually raise the volume controls while playing the
instrument to set the desired listening level.
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Содержание Portatone PSR-74
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