ENGLISH
MSR250 Owner’s Manual
3
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING
* Please keep this manual in a safe place for future reference.
WARNING
Always follow the basic precautions listed below to avoid the possibility of serious injur y or even death from
electrical shock, short-circuiting, damages, fire or other hazards. These precautions include, but are not
limited to, the following:
• Only use the voltage specified as correct for the device. The required
voltage is printed on the name plate of the device.
• Use only the included power cord.
• Do not place the power 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.
• Be sure to connect to an appropriate outlet with a protective grounding
connection. Improper grounding can result in electrical shock.
• Do not open the device or attempt to disassemble the internal parts or
modify them in any way. The device 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 device 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 any liquid such as water seeps into the
device, turn off the power immediately and unplug the power cord from
the AC outlet. Then have the device inspected by qualified Yamaha
service personnel.
• Never insert or remove an electric plug with wet hands.
• If the power cord or plug becomes frayed or damaged, or if there is a
sudden loss of sound during use of the device, or if any unusual smells
or smoke should appear to be caused by it, immediately turn off the
power switch, disconnect the electric plug from the outlet, and have the
device inspected by qualified Yamaha service personnel.
• If this device should be dropped or damaged, immediately turn off the
power switch, disconnect the electric plug from the outlet, and have the
device inspected by qualified Yamaha service personnel.
CAUTION
Always follow the basic precautions listed below to avoid the possibility of physical injur y to you or others, or
damage to the device or other property. These precautions include, but are not limited to, the following:
• Remove the electric plug from the outlet when the device is not to be
used for extended periods of time, or during electrical storms.
• When removing the electric plug from the device or an outlet, always
hold the plug itself and not the cord. Pulling by the cord can damage it.
• Always consult qualified Yamaha service personnel if the device
installation requires construction work, and make sure to observe the
following precautions.
- Choose mounting hardware and an installation location that can support
the weight of the device.
- Avoid locations that are exposed to constant vibration.
- Inspect the device periodically.
• Before moving the device, remove all connected cables.
• When setting up the device, make sure that the AC outlet you are using
is easily accessible. If some trouble or malfunction occurs, immediately
turn off the power switch and disconnect the plug from the outlet. Even
when the power switch is turned off, electricity is still flowing to the
product at the minimum level. When you are not using the product for a
long time, make sure to unplug the power cord from the wall AC outlet.
• Do not use the device in a confined, poorly-ventilated location. Make
sure that there is adequate space between the device and surrounding
walls or other devices: at least 30cm at the sides, 30cm behind and
30cm above. Inadequate ventilation can result in overheating, possibly
causing damage to the device(s), or even fire.
• Do not expose the device 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 place the device in an unstable position where it might
accidentally fall over.
• Do not block the vents. This device has ventilation holes at the rear to
prevent the internal temperature from becoming too high. Inadequate
ventilation can result in overheating, possibly causing damage to the
device(s), or even fire.
• Before connecting the device to other devices, turn off the power for all
devices. Before turning the power on or off for all devices, set all
volume levels to minimum.
Power supply/Power cord
Do not open
Water warning
If you notice any abnormality
Power supply/Power cord
Location
Connections
