Acer CB322QK semipruzx 31.5" 4K UHD HDR Display - Manual (Page 32)

19
Troubleshooting
Before sending your LCD monitor for servicing, please check the troubleshooting list
below to see if you can self-diagnose the problem
HDMI/DP model
Problem LED status Remedy
No picture visible Blue Using the OSD, adjust brightness and contrast to
maximum or reset to their default settings.
Off Check the power switch.
Check if the power cord is properly connected to
the monitor.
Orange Check if the video signal cable is properly
connected at the back of monitor.
Check if the computer system is switched on and
in power saving/standby mode.
Unstable picture Check if the specification of graphics adapter and
monitor is in compliance which may be causing
the input signal frequency mismatch.
Abnormal picture Image is missing,
off-center,
too large or
too small on the
screen.
Check the display setting on your system.
In case of a missing image, please select another
resolution or vertical refresh rate.
Wait for a few seconds after adjusting the size of
the image before changing or disconnecting the
signal cable or switching off the monitor.
Note: Acer monitor is purposed for video and visual display of information obtained from
electronic devices.
Product Information for EU Energy Label
R38023
RoHS