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I am trying to hook up my hx2001l monitor to my night owl security camera dvr through the vga port. I can’t seem to bring up the on screen display on the monitor. All I get on the screen is (frequency is out of range). Any thoughts? The monitor has been working properly for years as the monitor for my wifes home pc

Hey Kenneth, The traditional length of VGA can only support about 150’. It is hard to believe you would be out of range since most VGA cables are like 6 feet. Have you made sure the input of the monitor is set to VGA? I would look at that before anything else. Hope this helps.

The issue with this monitor is it only likes a handful of resolutions or it goes “out of range”, and is limited to 1660x900, so the resolution support plus obsolete resolution aren’t doing you any favors with this security DVR. Contact the company who makes it, and see if you can force it in the supported range: