Acer ED270R User Manual - Page 31

Audio abnormal

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(HDMI mode) Problem Status Solution LED lights up • Please use the OSD to maximize brightness and contrast, or reset it to a preset value. • Check the power switch. No picture LED off • Ensure that the AC power adapter is properly connected to the monitor. LED flashes • 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) No audio, or the volume is too low • (optional) 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. 21

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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 flashes
•
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.