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Network PA System
Network Column Speaker
5
Precautions
. Safety precautions
Before the system is not connected to the power supply line do not plug this device into the grid.
Make sure that the device input voltage and the equipment voltage requirements exactly; otherwise there
is danger of burn equipment.
There is a dangerous voltage in the machine, and the voltage is sufficient to cause an electric shock of
personnel. Please do not open the shell without authorization, so as to avoid the risk of electric shock.
Do not place the equipment in the over-cooling or overheating place.
Guarantee good ventilation of the working environment, so as to avoid the heating during work, and
damages to the equipment due to too high temperature.
Please unplug the power plug on the rainy and humid day or when it is not used for a long period.
Before any component of equipment is removed or reassembled, or any electric apparatus plug or other
lines are disconnected or reconnected, the network cable crystal head must be unplugged, in order to
ensure that the equipment is completely disconnected from the grid.
In case of the equipment failure, the nonprofessional shall not remove the shell for maintenance without
permission, so as to avoid the unexpected accident or aggravate the damage degree of the equipment.
Do not place any corrosive chemical near or on the equipment.
2. Precautions for after-sales service
Our company will offer three-year free warranty (including provision and replacement of parts for free)
for all quality problems appearing during the installation and use in accordance with this instruction and
in the normal use scope since the date of purchase.
In case of warranty, the user must show the warranty card, the copy saved by the user and sales invoice
as the evidence.
The following circumstances are not covered in the free guarantee scope:
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1
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Damages to products caused due to incorrect installation, use or handling;
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2
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Damages to products caused due to abnormal circumstances (for example, too high supply
voltage or environmental humidity);
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3
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Damages to products caused due to natural and man-made calamities and other unexpected
accidents.
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4
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The number of the product body is converted, altered or removed;
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5
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The products are repaired or refitted by the person not authorized by the company;
Please properly keep the instructions and warranty card.
For the non-mentioned problem or precautions in the instruction, please contact the dealer or visit our
company's web page
In case of failure in the warranty period, please contact our company's service personnel (or contact the
dealer) for repair or handling. For damages caused due to dis-assembly without authorization or
maintenance by technician not authorized by our company, our company will not assume responsibility
for free warranty
