(3) The attac hed touch pens are limited. Is there any object that
can replace the touch pen for flexible writing an d at the same
time does not damage the screen?
Fingers can be tempo rarily used for writing. In addition, if necessary, you
can buy more writing pens.
(4) After used for some time, the screen is overheated. Is it norm al?
Will it bring any bad influence?
It is normal that the screen is overheated, which will not bring any bad
influence. Currently, the heat radiation des
ign of our machine is
advantageous in the industry. We are the maker of the industry standard,
which complies with the internati onal health standard .
(5) Will it be ha r mful for eyes in case of us e for a long time?
The identification of human eyes to the twinkling is 50 Hz, and the
human eyes can f eel the twinkling if the frequency is below 50 Hz. The
eye muscles need to continuou sly adjust to adapt to the twinkling, which
results in the fatigue of eyes. The frequency of the LCD we use i
s 60 Hz
and 120 Hz. Therefore, human eyes cannot feel the twinkling of our
screen, which can reduce the fatigue of eyes to a large extent compared
with other similar products.
7. Simple Troubleshootin g
(1) Failure to boot the product
a. Check if the AC SWITCH is flipped to “I”.
b. Check the AC cable or DC adapter and try again.
(2) Automatic shut down
a. Check if the sleep feature is enabled, similar with a PC.
b. Check the power status.
(3) No sound, only pictu r es
a. Check the volume se
ttings.
b. Check if the audio cable is properly c onnected.
c. Check if the product is muted.
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