Acer XV270 User Manual page 30

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 Mode (Optional)
Problem
No picture visible
Regulatory Compliance
LED status
Blue Using the OSD menu, adjust brightness and
contrast to maximum or reset to their default
setting.
Off Check the power switch.
Check if the AC power cord is properly
connected to the monitor.
Amber 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.
Remedy
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