9
3. Safety Warning
Before using the device, please read the instructions carefully.
Placement
Do not put the device on surfaces that are unstable, easy to tilt or which can fall.
Do not put the device in places with direct sunlight, or near sources of heat, such as electric
heaters or strong light sources.
Do not use the device next to radiation emitting equipment.
Do not put the device in damp places or places where it might be exposed to moisture or liquids.
Do not insert any items inside of the device.
Do not place heavy objects on the device.
Power Supply
Please verify compatibility between the voltage value on back shell nameplate and the main power
supply voltage value.
In case of thunderstorm and lightning weather, please unplug power cord and antenna plug.
When no one is indoors or the device will not be in use for a long time, please unplug the power
cord.
Please prevent power cord from physical or mechanical damage.
Please use the special power cord, and do not modify or extend the power cord.
Please check and make sure the AC power ground wire is connected.
Screen
When writing on screen, please do not use hard or sharp objects instead of styluses.
When it needs cleaning, please unplug the power cord first.
Please use a soft, dust-free, dry cloth to wipe the screen.
Do not use water and spray cleaner to clean the device.
Please contact the service center for internal cleaning of the device.
Do not display image with high brightness on the screen for a long time
.
Range of Visibility
The best distance between eyes of viewer and screen is 5 to 7 times of screen diagonal.
The best viewing angle between eyes of viewer and listener and screen is within 176 degrees up
and down, left and right.
Temperature
Do not place the device near an electric radiator or heating unit.
When moving the device from a low temperature area to a high temperature area, before
connecting the device to power, please leave the device idle in the new environment for some time
to allow for temperature adjustment, in order to sufficiently diffuse internal condensation prior to
powering on.
The Device's normal working temperature is 0 ~ 40
°
C, storage temperature is -20~60
°
C
Humidity
Do not expose the machine to the rain, moisture, or places near water.
Please make sure the indoor environment is dry and cool, the machine’s normal working humidity
is 10~90%, storage humidity is 10~95%.
