Chassis Plans CPX1-241, Техническое справочное руководство

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Chassis Plans CPX1-241 Technical Reference Appendix B – Auto Color Gain
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Appendix B – Auto Color Gain
The Auto Color Gain function is supported in the ARGB mode only and is designed to calibrate the controller to
the incoming video signal. In order to calibrate correctly, the display must be displaying an image containing both
black and white data (see illustration below) when the function is used. The internal processor of the video
controller chip will then execute a process to adjust the relative values of the RGB signals to achieve the best
performance. The parameters of the corrected RGB values are then stored in the controller and are unaffected
by the Reset Factory Defaults function.
Image B-1 – Auto Color Gain Example
The reference pattern can be downloaded at :
http://www.chassis-plans.com/Rackmount-Keyboard-Displays/TestPattern_1280.bmp
This reference pattern is for 1280x1024 resolution and it needs to set your ARGB input source to 1280x1024
resolution before performing the Auto Color Gain function. The position of the black vertical bar in the pattern at
the right side is important. It will affect the calibration result if you are setting the ARGB input to other resolution.
This image can be used on the CPX1-124 to correctly set the Auto Color Gain.
Warning - If the Auto Color Gain is executed without an appropriate image being displayed, then the process will
set incorrect values and the display colors will be distorted. If this occurs, then it can either be corrected by
performing the process correctly or if this is not possible then the Reset Color Gain function can be used. This
function will reset the stored RGB values to a set of approximate values.