Appendix A Faqs - HIKVISION DS-D5B86RB/B User Manual

Question
Why do the condensations appear
frequently on the screen?
Why there is no sound coming from
my laptop after connection?
Why does the screen get hot after a
period of use?
Does long-time use damage the
eyes?
Why there is no image in screen nor
sound coming from the device?
Why does the device HDMI channel
have no input signal?
Why is wired network unstable?
Interactive Tablet User Manual

Appendix A FAQs

Tempered glass is installed on the outer screen to provide
protection. There is a gap between the screen and the
tempered glass for air convection. The main reason is that
there is a temperature difference between the screen and
the outside. Hot air condenses on the glass surface at a
lower temperature, which results in condensations.
Condensations will evaporate after the device starts up
and will not affect the use of the device.
If only audio cable is accessed, both audio output and
image output will be unavailable.
● Access HDMI cable.
● Select the device as the audio output device in
Windows.
Screen temperature rise is caused by heat dissipation and
is completely normal. Our heat dissipation design is
industrial-leading and is the formulator of the industry
standards, which is in accordance with the national health
standard.
The recognition of flicker by human eyes is 50Hz. If the
frequency is lower than 50Hz, then the flicker will be
recognized and cause eye muscles fatigue. We use 60Hz
LCD screen, human eyes will not recognize the flicker of
the screen. Compared with other products of the same
kind, it can reduce eye fatigue to a large extent.
● Check if the power cable is connected.
● Check if the socket works normally.
● Check if the power switch is turned on.
● Check if the input source works normally.
● Change HDMI interface or cable.
● If PC is accessed, set HDMI output on your PC.
Try to disable the auto network detection option.
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Cause and Solution