If you have connected your DVR / NVR system to a monitor and are not seeing a picture, it may be related to issues with your cables, monitor, or DVR / NVR resolution settings.
To check your DVR / NVR cable connections:
Ensure that the video cable is not loose or has become disconnected. Check the video cable connection to your monitor / TV.
Try a different cable of the same type to ensure the video cable is not damaged or broken.
Check if your monitor / TV and DVR / NVR system support High Definition Multimedia Interface (HDMI). If they both do, connect an HDMI cable between the TV and DVR / NVR. It is recommended to use HDMI when available.
Check if your monitor / TV and DVR / NVR system support VGA Cables. If they both do, connect a VGA cable between the monitor / TV and DVR / NVR.
If your DVR / NVR supports DVI only, connect a DVI cable between the DVR / NVR and the monitor / TV.
TIP: You can also purchase adapters to convert DVI to HDMI or VGA for your TV or monitor.
If your monitor / TV only has RCA Cable inputs, you can connect it to a Video Output port on your DVR / NVR using a BNC or RCA cable and an adapter.
If you are using a BNC cable, use Lorex model BNCB to connect to an RCA input on your monitor / TV.
If you have checked your DVR / NVR cables and are still not getting a picture, try resetting your monitor connection with your DVR / NVR.
To reset your monitor connection:
If you have reset your monitor connection and are still not getting a picture, check your monitor / TV input channel. Ensure that you have selected the input channel on your monitor that is connected to your DVR / NVR. Refer to your monitor user manual for information on how to select input channels.
If you have selected the correct input channel on your monitor and are not seeing a picture, check to ensure that your DVR / NVR is set to a resolution that is supported by your monitor.
To check DVR / NVR resolution settings: