Acer AL2023 Manuel de l'utilisateur - Page 11
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Problem
Power LED is not ON
No picture
Picture shows
inappropriate colors
Picture bounces or a
wave pattern is
present in the picture
Image is not sized or
centered properly
Caution: Do not attempt to service or open the monitor or computer yourself. Please refer all
servicing to qualified service personnel if the "Troubleshooting" section cannot solve your
problems.
Troubleshooting
Check to see if the power switch is in the ON position.
Ensure that the Power Cord is connected.
Check to see if the power switch is in the ON position.
Ensure that the power cord is connected.
Ensure the video cable is securely connected to the back of the monitor
and the computer.
Move the mouse or press any key on the keyboard to bring the monitor
out of "active off" mode.
See color adjustment (p. 8) to adjust RGB color.
Move or switch off electrical devices that may be causing interference.
Inspect the monitor's video cable and ensure that none of the pins are
bent.
Press select/auto key and the monitor will automatically optimize the
position of your display.
See horizontal and vertical position adjustment (p. 7).
11
Possible Solutions