23
Troubleshoot
Problem & Question Possible Solutions
Power LED Is Not On
Make sure the power button is ON and the Power Cord is properly
connected to a grounded power outlet and to the monitor.
No Image On The Screen
Is the power cord connected properly?
Check the power cord connection and power supply.
Is the video cable connected correctly?
(Connected using the HDMI cable)
Check the HDMI cable connection.
(Connected using the DP cable)
Check the DP cable connection.
* HDMI/DP input is not available on every model.
If the power is on, reboot the computer to see the initial screen
(the login screen.)
If the initial screen (the login screen) appears, boot the computer
in the applicable mode (the safe mode for Windows 7/8/10) and
then change the frequency of the video card.
(Refer to the Setting the Optimal Resolution)
If the initial screen (the login screen) does not appear, contact the
Service Center or your dealer.
Can you see “Input Not Supported” on the screen?
You can see this message when the signal from the video card
exceeds the maximum resolution and frequency that the monitor
can handle properly.
Adjust the maximum resolution and frequency that the monitor
can handle properly.
Make sure the AOC Monitor Drivers are installed.
Picture Is Fuzzy & Has
Ghosting Shadowing
Problem
Adjust the Contrast and Brightness Controls.
Press hot-key (AUTO) to auto-adjust.
Make sure you are not using an extension cable or switch box. We
recommend plugging the monitor directly to the video card output
connector on the back.
Picture Bounces, Flickers
Or Wave Pattern Appears
In The Picture
Move electrical devices that may cause electrical interference as far
away from the monitor as possible.
Use the maximum refresh rate your monitor is capable of at the
resolution you are using.
Monitor Is Stuck In Active
Off-Mode
The Computer Power Switch should be in the ON position.
The Computer Video Card should be snugly tted in its slot.
Make sure the monitor’s video cable is properly connected to the
computer.
Inspect the monitor’s video cable and make sure no pin is bent.
Make sure your computer is operational by hitting the CAPS LOCK
key on the keyboard while observing the CAPS LOCK LED. The LED
should either turn ON or OFF after hitting the CAPS LOCK key.
Missing One Of The
Primary Colors (RED,
GREEN, or BLUE)
Inspect the monitor’s video cable and make sure that no pin is
damaged.
Make sure the monitor’s video cable is properly connected to the
computer.
Screen Image Is Not
Centered Or Sized Properly
Adjust H-Position and V-Position or press hot-key (AUTO).
Picture Has Color Defects
(White Does Not Look
White)
Adjust RGB color or select desired color temperature.
Horizontal Or Vertical
Disturbances On the
screen
Use Windows 7/8/10 shut-down mode to adjust CLOCK and FOCUS.
Press hot-key (AUTO) to auto-adjust.
Regulation & Service
Please refer to Regulation & Service Information which is in the CD
manual or www.aoc.com (to nd the model you purchase in your
country and to nd Regulation & Service Information in Support
page.)
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General
Weight and Dimensions
