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Section 11: Troubleshooting
11.1 – General Problems
The screen is blank
•
Press the power button to turn the monitor on.
•
Confirm the brightness and contrast settings are set normally.
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Check if the indicator light is flashing. If so, there is no signal from your video source.
•
If your source is a notebook or laptop, make sure it’s powered on and set to mirror or
extension mode.
The image is out of focus
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Make sure the video cable is inserted properly at both ends.
The screen is flashing
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Try an alternative power source. Insufficient power can cause this issue.
•
Make sure devices such as non-shielded speakers, fluorescent lighting, AC transformers,
table fans etc. are a safe distance away from your screen to avoid magnetic disturbances.
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 55-76Hz.
•
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 if the power is on
.
•
Make sure the power cable is properly connected to the monitor and power source.
Cannot plug and play.
•
Check PC requirements to make sure it is compatible with the monitor.
•
Check graphics card requirements to make sure it is compatible with the monitor.
Dim image
•
Adjust the brightness and contrast ratio.
Image jitter/moire pattern
•
Nearby electric equipment may be interfering with the monitor.
Light indicator is on or flashing, but there is no image displayed on screen
•
Check if the monitor power is on.
•
Check if the graphics card is installed properly.
•
Make sure the power cable is properly connected to the monitor and power source.
Image position is not centered/the size is not right
•
Please adjust Clock or Auto settings.
Color difference (colors are not optimized)
•
Adjust RGB color settings or reset color temperature.
Summary of Contents for GN34CB
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