Barco R9004460, Руководство пользователя

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6. Adjustment Mode
6.4.6.2 Adjusting the input balance
How can it be done ?
To balance the three color signals of a particular source there are conditions; in fact we must know the black and the white level of
the source i.e. :
1.
The source in question must be able to generate a white signal, ideally a 100% white (background) full screen pattern
2. The source in question must be able to generate a black signal, ideally a 100% black (background) full screen pattern
A
B
Image 6-7
White balance : In the projector, we will set the contrast for each color until we get a 100% light output picture when projecting a
100% white image (image A)
Black balance : In the projector, we will set the brightness for each color until we get a 0% light output picture when projecting a
100% black image (image B).
The changeover from min to max is indicated by the apparition of bright spots also called “digital noise”
An alternative to a full screen White/black pattern is the standard gray scale pattern, the white bar will be used
for white balance and the black bar for black balance.
Image 6-8
Black balance
1. Push the cursor key ↑ or ↓ to highlight
Input balance
. (menu 6-37)
2. Press ENTER to select.
The
Input balance
menu will be displayed. (menu 6-38)
3. Push the cursor key ↑ or ↓ to highlight
Black balance
.
4. Adjust the red black level on a minimal value
5. Press ENTER to select.
6. Adjust the Brightness to a maximum value until there is just no green noise visible in the black areas.
7. Adjust with the ← or → cursor keys until there is no red noise visible in the black areas.
8. Adjust with the ↑ or ↓ cursor keys until there is no blue noise visible in the black areas.
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