ADT DVR7800S-U Series User Manual page 30

2 Getting Started
Figure 2-8
Please refer to the following sheet for detailed information.
Period. There are two periods in one day. You can set different sharpness, brightness, and contrast
setup for each period.
Effective Time. Check the box to enable this function and then set the period time.
Sharpness. Move the slider to adjust the edge of the video. The value ranges from 0 to 100. The
larger the value, the clearer the edge and vice versa. The default value is 50 and the recommended
value ranges from 40 to 60.
Brightness. Use the slider to adjust monitor window brightness. The value ranges from 0 to 100.
The default value is 50. The larger the number, the brighter the video. You can use this function when
the video is too dark or too bright as a whole. Note that the video may become hazy if the value is too
high. The recommended value ranges from 40 to 60.
Contrast. Use the slider to adjust the monitor window contrast. The value ranges from 0 to 100. The
default value is 50. The larger the number, the higher the contrast. Use this feature when video
brightness is OK but contrast is not. Please note the video may become hazy if the value is too low. If
this value is set too high, dark sections may lack brightness while bright sections may be over-
exposed. The recommended value ranges from 40 to 60.
DVR7800S-U Series Hybrid DVR User Guide 20