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8. Image Menu
8.10.2 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 8-40
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 8-41
Black balance
1. Press
MENU
to activate the menu bar.
2. Press
→
to select the
Image
item.
3. Press
↓
to pull down the
Image
menu.
4. Use
↑
or
↓
to select
Input balance.
5. Press
→
to pull down the menu.
6. Use
↓
or
↑
to select
Black balance.
7. Adjust the red black level on a minimal value (image 8-43, image 8-44)
8. Adjust the blue black level on a minimal value
Note:
This minimal value is not necessary , provided that the 2 other colors are not influencing too much the color to be adjusted,
in fact the aim is to minimize the effect of the two other colors since there is a risk of reaching too soon the 50% transition
due to the contribution of these two other colors signals.
9. Adjust the Green black level until bright spots appear on the screen.
10.Adjust the Blue black level until bright spots appear on the screen.
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R5976817 RLM H5 02/06/2006
Summary of Contents for RLM H5
Page 1: ...RLM H5 Owners manual R9010300 R5976817 03 02 06 2006...
Page 4: ......
Page 8: ...Table of contents 4 R5976817 RLM H5 02 06 2006...
Page 14: ...1 Packaging and Dimensions 10 R5976817 RLM H5 02 06 2006...
Page 54: ...5 Getting used with the menu structure 50 R5976817 RLM H5 02 06 2006...
Page 60: ...6 Source selection 56 R5976817 RLM H5 02 06 2006...
Page 64: ...7 General Menu Image 7 7 60 R5976817 RLM H5 02 06 2006...
Page 93: ...8 Image Menu Image 8 51 R5976817 RLM H5 02 06 2006 89...
Page 94: ...8 Image Menu 90 R5976817 RLM H5 02 06 2006...
Page 104: ...9 Tools Menu 100 R5976817 RLM H5 02 06 2006...
Page 134: ...13 Display Setup 130 R5976817 RLM H5 02 06 2006...
Page 144: ...14 Installation menu 140 R5976817 RLM H5 02 06 2006...