Avenview C-DVIA-HDMI - Manual (Page 8)

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1.10 General Troubleshooting
Problem Possible Solution
No Image

Check if connection to the source and the display are correct.

Ensure that display device supports 480p or 720p resolution
Screen Defects Appear

This product supports up to 1080p (1920x1200) resolution.

Check the DVI and HDMI connection

If outputting from a PC. Check the maximum resolution range
of the graphics card.