Troubleshooting - Acer V227Q Lifecycle Extension Manual

TROUBLESHOOTING

Before sending your LCD monitor for servicing, please check the trouble-shooting list below
to see if you can self-diagnose the problem.
(VGA Mode)
Problems Current Status
LED ON
LED OFF
No Picture
LED displays amber
color
Unstable Picture
Abnormal
Picture
Display is missing,
center shift, or too
small or too large in
display size
Abnormal
Sound
No sound, or sound
(Only Audio-
level is too low
Input model)
(Optional)
5. Troubleshooting
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.
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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