4. Operation

Using the Expert Mode Menu

Please note:

The 1:1 mode requires very accurate settings, as even a small sampling error can cause noise on the output image.

Both the sample clock frequency and phase must be correct to obtain a properly sampled image.

LED-PRO incorporates automatic adjustments in the 1:1 sampling mode.

„To change the sampling mode:

1.On the Input Setup Menu, select Sampling.

2.Choose either OverSample or 1:1, and press SEL to accept. Please note:

1:1 is the default setting.

The OverSample option is only available for RGB and YPbPr analog inputs. All other input types have defined sample clocks that are inherently 1:1. If the input is set to one of the other types, the value for this selection will be “n/a.”

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From the Input Setup Menu, select Timing Adjust to display either the 1:1 Timing Adjust Menu or the OverSample Timing Adjust Menu — depending on your selected sampling mode. Each menu allows for exact positioning of the input signal's active area.

1:1 Timing Adjust Menu OverSample Timing Adjust Menu

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When 1:1 sampling is selected, the 1:1 Timing Adjust Menu is shown:

1:1 TIMING ADJUST > Auto Config

Sample Phase

0

 

H Total

2160

 

H Position

496

 

H Active

1600

 

V Total

1250

 

V Position

49

 

V Active

1200

 

 

 

 

Figure 4-52.1:1 Timing Adjust Menu (sample)

Following are descriptions of each menu function, which are only available when 1:1 Sampling is selected, and the input is analog RGB or YPbPr.

Auto Config — causes the system to run the “1:1 active area acquisition” procedure.

Note

For the Auto Config procedure to function correctly, the input

 

source for the selected channel must have 50% gray or

 

brighter pixels around all four edges of the active area.

 

 

70

 

LED-PRO • User’s Guide

 

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Barco 26-0501000-00, LED-PRO manual QáãáåÖ=Çàìëí, „ NWN=qáãáåÖ=Çàìëí=jÉåì, On the Input Setup Menu, select Sampling

LED-PRO, 26-0501000-00 specifications

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