Vivotek NBV27CB2, Руководство пользователя

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Section 10: Troubleshooting
The screen is blank
• Press the power button to turn on the monitor.
• Confirm the brightness and contrast settings are set normally.
• Check if the indicator light is flashing. If so, this indicates there is no signal from
your video source.
• If your source is a notebook or laptop, be sure that its settings are in mirror or
extension mode and the device itself is powered on.
The image is out of focus
• Ensure the video cable is inserted properly at both ends.
The screen is flashing
• Try an alternative power source. Insufficient power may be causing this issue.
• Ensure 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. Replace the connecting
cable if needed.
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 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.
Cannot hear sounds.
• Make sure Mute isn’t enabled in the OSD menu (see Section 8.1 – OSD Menu
Functions ).
• Make sure the correct audio input is selected based on the connecting cable, i.e.,
HDMI, VGA. (If using a VGA cable, monitor must be set to AUDIO IN in the OSD
menu ( see Section 8.1 – OSD Menu Functions ).
• If you are using a VGA cable to connect a computer, you must also connect an
audio cable from the computer’s LINE OUT to the monitor’s LINE IN and select
AUDIO IN in the OSD menu (see Section 8.1 – OSD Menu Functions ).