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The color bleeds or visual effects appear unusual.
• If your screen is all red or blue, or any colors disappear, check to see that the
cable is properly inserted. A loose connection can cause a bad signal.
• Try connecting to another video source for comparison.
The screen appears to be scrolling, rolling, or moving unusually.
• Check that your source frequency is within 144Hz.
• Reconnect and ensure your video cable is secure.
The monitor needs cleaning
• Make sure the monitor has been powered off before cleaning.
• Always use soft, non-abrasive cloth when cleaning.
• Use dry, non-abrasive cloth to gently remove debris or dust.
• If necessary, lightly dampen a non-abrasive cloth with water and gently clean the
surface.
• Never use alcohol or ammonia-based cleaning solutions.
• Never spray liquid directly onto any part of the monitor.
The indicator light does not work
• Check that the power is on.
• Check that the power cable is connected and plugged in to a wall outlet.
Cannot plug and play.
• Ensure the monitor is compatible with PC.
• Ensure the graphics card is compatible with the monitor.
• Check cable connectors for curved or damaged pins. Replace cables if needed.
Dim image
• Adjust the brightness and contrast ratio.
Image jitter/moire pattern
• Nearby electric equipment may interfere with the monitor.
Light indicator is on or flashing, but there is no image displayed on screen
• Check that the monitor power is on.
• Check that the graphics card is installed properly.
• Check that the signal line connects securely with the monitor.
• Check cable connectors for curved or damaged pins. Replace cables if needed.
Color shortage (red, green, or blue)
• Inspect if the pins in the interface are curved.
Image position is not centered/the size is not right
• Please adjust Clock or Auto setting.
Color difference (colors are not optimized)
• Adjust RGB color or reset color temperature.
GNV27DB.indd 14 2020/3/26 18:39:16
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