Yamaha MG12XU/MG12 Manual Do Utilizador

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MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual
5
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 periodically and remove any dirt or 
dust which may have accumulated on it.
• Be sure to connect to an appropriate outlet with a protective 
grounding connection. Improper grounding can result in 
electrical shock, damage to the device(s), or even fire.
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.
Fire warning
• Do not put burning items, such as candles, on the unit. 
A burning item may fall over and cause a fire.
If you notice any abnormality
• When one of the following problems occur, immediately turn 
off the power switch and disconnect the electric plug from 
the outlet. Then have the device inspected by Yamaha 
service personnel.
- The power cord or plug becomes frayed or damaged.
- It emits unusual smells or smoke.
- Some object has been dropped into the device.
- There is a sudden loss of sound during use of the device.
• 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.
• Remove the electric plug from the outlet when the device is 
not to be used for extended periods of time, or during 
electrical storms.
Location
• 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 bottom/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.
• 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.
• 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.
• When rackmounting the device, always use two or more 
people. Attempting to lift the device by yourself may 
damage your back, result in other injury, or cause damage 
to the device itself.
• If the device is mounted in an EIA standard rack, carefully 
read the section “Precautions for Rack Mounting” on page 
35. Inadequate ventilation can result in overheating, 
possibly causing damage to the device(s), malfunction, or 
even fire.
Connections
• 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.
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Precautions