5
EMX7 Owner’s Manual
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 injury or even death
from electrical shock, short-circuiting, damages, fire
or other hazards. These precautions include, but are
not limited to, the following:
Power supply/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.
• 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 supplied power cord/plug.
If you intend to use the device in an area other than in the
one you purchased, the included power cord may not be
compatible. Please check with your Yamaha dealer.
• Check the electric plug and each jack periodically, and
remove any dirt or dust which may have accumulated.
Failure to do so may cause electrical shock, short-
circuiting or fire.
• 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, as long as the power cord is not
unplugged from the wall AC outlet, the device will not be
disconnected from the power source.
• Remove the electric plug from the outlet when the device
is not to be used for extended periods of time, or during
electrical storms.
• Be sure to connect to an appropriate outlet with a
protective grounding connection.
Do not open
• This device contains no user-serviceable parts. Do not
open the device or attempt to disassemble the internal
parts or modify them in any way. If it should appear to be
malfunctioning, discontinue use immediately and have it
inspected by qualified Yamaha service personnel.
Water warning
• Do not expose the device to rain, use it near water or in
damp or wet conditions, or place on it any containers
(such as vases, bottles or glasses) 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.
Hearing loss
• Avoid setting all equalizer and level controls to their
maximum. Depending on the condition of the connected
devices, doing so may result in feedback that can cause
hearing loss and damage the speakers.
• Do not use speakers 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.
• When turning on the AC power in your audio system,
always turn on the device LAST, to avoid hearing loss and
speaker damage. When turning the power off, the device
should be turned off FIRST for the same reason.
Fire warning
• Do not place any burning items or open flames near the
device, since they may cause a fire.
If you notice any abnormality
• If any of the following problems occur, immediately turn off
the power switch and disconnect the electric plug from the
outlet.
- The power cord or plug becomes frayed or damaged.
- Unusual smells or smoke are emitted.
- Some object has been dropped into the device.
- There is a sudden loss of sound during use of the device.
- Cracks or other visible damage appear on the device.
Then have the device inspected or repaired 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 injury to you or
others, or damage to the device or other property.
These precautions include, but are not limited to, the
following:
Power supply/power cord
• 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.
Location
• Do not place the device in an unstable position where it
might accidentally fall over and cause injuries.
• Do not block the vents. This device has ventilation holes at
the sides to prevent the internal temperature from
becoming too high. In particular, do not place the device
on its side or upside down. Inadequate ventilation can
result in overheating, possibly causing damage to the
device(s), or even fire.
• When using the device:
- Do not cover it with any cloth.
- Do not install it on a carpet or rug.
- Do not use the device in a confined, poorly-ventilated
location.
Inadequate ventilation can result in overheating, possibly
causing damage to the device(s), or even fire. If this
device is to be used in a small space other than an EIA-
standard rack, make sure that there is adequate space
around the device: at least 30 cm above, 30 cm at the
sides and 30 cm behind.
• Do not place the device in a location where it may come
into contact with corrosive gases or salt air. Doing so may
result in malfunction.
• Before moving the device, remove all connected cables.
• If the device is mounted in an EIA standard rack, carefully
read the section “Precautions for Rack Mounting” on page
24. Inadequate ventilation can result in overheating, possibly
causing damage to the device(s), malfunction, or even fire.
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