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Input Configuration
25
UDM-1604 Endeleo Multi-Format Distribution Hub
Compensating Video at the output ports
Video Compensation Guidelines
Some guidelines on compensating video are listed below, as well as information on compensating video
on LCD panels.
The guidelines focus on;
Video Compensation Modes
Two modes of compensation are possible, Basic and Advanced.
Basic Mode
1.
Select the Status option from the main options.
2. Select the relevant output port name hyperlink.
3. In Basic mode the system will automatically set up the brightness and sharpness in relation to the
distance entered in the Cable Distance field. Such values are based on a look up table within the hub
(FIG. 26).
4. Fine tuning can be achieved by varying the distance entered.
Skew Endeleo recommends that the video compensation is first adjusted to eliminate
any skew, using vertical red / green / blue lines.
Brightness Once any skew has been eliminated the video should be adjusted for brightness
using a grey scale or equivalent test card.
Sharpness Finally the sharpness of the video should be adjusted eliminating any over or
under shoot of the video. Horizontal black and white bars are one useful method
of tuning sharpness.
LCD screens have a tendency to automatically try and compensate the video,
presenting issues when adjusting for skew. Using a CRT monitor to adjust video
quality is often the best way around this.
FIG. 26 Basic Video Compensation