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21
(HDMI mode)
Problem Status Solution
No picture
LED lights up
• Please use the OSD to
maximize brightness and
contrast, or reset it to a preset
value.
LED off
• Check the power switch.
• Ensure that the AC power
adapter is properly connected to
the monitor.
LED ashes
• Check that the video signal
cable is properly connected to
the back of the monitor.
• Check whether the computer
system's power is on.
Audio abnormal
(only Audio
input model)
(optional)
No audio, or the volume is
too low
• Check whether the audio cable
is connected to the PC.
• Check if the volume of the PC
is set to minimum, and try to
increase the volume.