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Chapter

Advanced Analog Adjustment function

Overview

The Advanced Analog Adjustment function is intended to assist with the manual adjustment of the analog video levels

in cases where the automatic adjustment is not accurate enough.

The procedure involves the setting of a special LUT (Look Up Table) within the display which will allow the analog video

levels to be accurately set by making manual adjustments via the IR Remote while looking at the screen.

The process should take about 7 minutes or less per display depending on the experience level.

Once this process is repeated for all displays, the analog video levels between the displays should match very closely,

resulting in accurate color matching between displays when an analog video input is used.

Important: This procedure only adjusts the analog inputs of the display and sets the analog-to-digital conversion levels,

which determine how analog video is converted to digital within the display. It does not adjust the digital portion of the

video signal path. Therefore it is very important to rst calibrate the displays and make sure that the Calibrated White test

patterns match satisfactorily between displays. This procedure should not be used to try and match displays that do not

match when the Calibrated White test patterns are shown. In this case either re-calibrate the display(s), or use the Visual

Trim feature.

Requirements:

• The video input used must be analog, and should use the same signal source, video resolution, cables,

distribution ampliers, etc. that will be used for the nal installation.

• The video signal source must be capable of outputting a completely black signal, and a full white signal.

• On some display models the controls for adjusting the necessary settings will be available and enabled

on the Advanced Analog tab in the Display Settings. The Analog Offset Base (Bias) Red, Green, and

Blue slider controls be used instead of using the OFFSET BASE 01-03 OSD settings, and the Analog

Gain Red, Green, and Blue controls can be used instead of the GAIN 01-03 OSD settings respectively.

• On other models, the user must have access to each display’s OSD (On Screen Display), either via a

physical IR Remote, or by using the IR Remote emulation function in the Display Settings dialog. Using

the IR Remote emulation can be slow to make many adjustments, so using a physical IR Remote is

recommended if possible.

• Displays should be warmed up for at least 30 minutes before making these adjustments.

Adjustment steps:

1. Connect the analog signal source, and select the correct input on the display.

2. Input a 100% black video signal.

3. In the software, select the Advanced Analog tab in the Display Settings dialog and click the Enable Export OSD

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NEC Display Wall Calibrator Guía de usuario Pagina 83