X153W
EN-
18
TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if
you can self-diagnose the problem.
(VGA Mode)
Problems Current Status Remedy
LED ON
y Using OSD, adjust brightness and contrast to maximum
or reset to their default settings.
y Check the power switch.
LED OFF
y Check if AC power cord is properly connected to the
monitor.
y Check if video signal cable is properly connected at the
back of monitor.
No Picture
LED displays amber
color
y Check if the power of computer system is ON.
Unstable Picture
y Check if the specification of graphics adapter and
monitor is in compliance which may be causing the input
signal frequency mismatch.
y Using OSD, adjust RESOLUTION, CLOCK, CLOCK-PHASE,
H-POSITION and VPOSITION with non-standard signals.
y Using OSD, in case of missing full-screen image, please
select other resolution or other vertical refresh timing.
Abnormal
Picture
Display is missing,
center shift, or too
small or too large in
display size
y Wait for a few seconds after adjusting the size of the
image before changing or disconnecting the signal cable
or powering OFF the monitor.
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