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5. Select the VP300 Window2 pattern and adjust the pattern level for 80-100 IRE. Most direct-
view displays will track well up to 100 IRE, whereas many projection displays produce a
better compromise tracking when adjusted at a lower IRE level.
Fig. 2 - VP300 100 IRE Window pattern
6. Adjust the drive/gain controls to obtain color balance at high brightness.
Note: If only two drive controls are available, select the missing color as your reference
color in the ColorPro Delta RGB display window.
7. Re-select the Window1 pattern, readjust the pattern IRE level to produce approximately 1-2
footlamberts of luminance, and recheck/readjust the cutoff controls for the desired
chromaticity coordinates.
8. Repeat steps 5-7 until the display’s color temperature remains relatively constant (tracks)
over the full range of white window IRE levels.
Final User Control Adjustment
When the white balance adjustment is complete, perform a final adjustment of the display’s user
controls (brightness, contrast, sharpness, color, and hue), as outlined in Appendix A