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Troubleshooting; Vga Mode - Acer V226HQL User Manual

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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

Problem
No picture visible
Unstable picture
Abnormal picture
LED status
Blue
Using the OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
Off
Check the power switch.
Check if the power cord is properly
connected to the monitor.
Amber
Check if the video signal cable is
properly connected at the back of
monitor.
Check if the computer system is
switched on and in power saving/
standby mode.
Check if the specification of graphics
adapter and monitor is in compliance
which may be causing the input signal
frequency mismatch.
Image is missing,
Using the OSD, adjust focus, clock, H-
off-center, too
position and V-position with non-
large or too
standard signals.
small on the
screen.
Check the display setting on your
system. In case of a missing image,
please select another resolution or
vertical refresh rate.
Wait for a few seconds after adjusting
the size of the image before changing
or disconnecting the signal cable or
switching off the monitor.
Remedy
15

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