Acer ED320Q User Manual page 36

(VGA Mode)
Problems
No Picture
Abnormal Picture
Abnormal Sound
(Only Audio- Input
model) (Optional)
Current Status
LED ON
LED OFF
LED flashes
Unstable Picture
Display is missing,
center shift, or too
small or too large in
display size
No sound, or sound
level is too low
Remedy
• Using OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
• Check the power switch.
• Check if AC power cord is properly
connected to the monitor.
• Check if video signal cable is properly
connected at the back of monitor.
• Check if the power of computer system
is ON.
• Check if the specification of graphics
adapter and monitor is in compliance
which may be causing the input signal
frequency mismatch.
• Using OSD, adjust RESOLUTION,
CLOCK, CLOCK-PHASE, H-POSITION
and V-POSITION with non-standard
signals.
• Using OSD, in case of missing full-
screen image, please select other
resolution or other vertical refresh timing.
• Wait for a few seconds after adjusting
the size of the image before changing
or disconnecting the signal cable or
powering OFF the monitor.
• Check the audio cable with the host PC
is connected.
• Check if the volume setup of the host PC
is in minimum position and try to raise
the volume level.
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