User's Manual

Interactive Tablet User Manual
30
Question
Cause and Solution
Why does the device HDMI channel
have no input signal?
• Check if the input source works normally.
• Change HDMI interface or cable.
• If PC is accessed, set HDMI output on your PC.
How to deal with image ghosting?
• Check if the VGA cable is loose.
• Try to change VGA cable or change to another VGA
interface.
How to deal with image color
abnormality after accessing PC via
VGA channel?
• Check if the VGA cable is loose.
• Check if the pins of the two terminals of the VGA cable
are damaged.
• Change VGA cable if it’s damaged.
Why does the VGA interface of the
accessed PC have no output signal?
• Check video card settings in your PC control panel, try to
change the output mode.
• Change VGA cable if it’s damaged.
Why is wired network unstable?
Try to disable the auto network detection option.