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Power
Supply
• Keep power cable from physical or mechanical damage.
• Check and ensure AC source is connected to the ground.
• The power cable is exclusively for use with this device only.
• Unplug power supply during severe weather such as
thunderstorm and lightning storms.
• Check that the unit's operating voltage is identical with your local
power supply.
• Use the original power cable from the accessory bag. Do not
modify or lengthen it.
• Unplug power supply during school breaks or when the unit will
be in idle for a long time.
LED Screen
• Unplug the power cable before cleaning.
• Clean the screen with a soft, dustless, and dry cloth.
• For deep clean, please contact an authorized service center.
Never use water or the spray type detergent to clean the unit.
• Never use any other hard or sharp object to replace the touch
pen.
• To ensure the best display quality and extend the life of the
product, do not display overly bright images for extended
periods of time.
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