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Troubleshooting - Acer X233H User Manual

23”w lcd monitor
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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
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
(DVI Mode)
Problems
Current Status
LED ON
LED OFF
No Picture
LED displays amber
color
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 VPOSITION 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.
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.
EN- 19
Remedy
Remedy
X233H

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