Acer KN242HYL User Manual download pdf (Page 25)

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1514

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 LED status Remedy

No picture visible Blue Using the OSD menu, 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.

Unstable picture Blue Check if the specification of graphics

adapter and monitor is in compliance

which may be causing the input signal

frequency mismatch.

Abnormal picture Image is missing,

off-center, too

large or too small

on the screen.

Using the OSD menu, adjust focus, clock,

H-position and V-position with non-

standard signals.

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.

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Acer KN242HYL User Manual Page 25