PLANET NVR-1620 - Manual (Page 115)

Network Video Recorder with HDMI
NVR‐820 / NVR‐1620
To change the map image, place your own image on a USB disk and plug it
into one of the USB ports on the NVR. Click the "Browse" button and select the
USB disk when prompted.
Locate the image file (.jpg) and click "Open" to finish.
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