Acer B193 User Manual - Page 29

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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.

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