9. Image menu
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 9-45
Black balance
1. Press MENU to activate the menus.
2. Use the ▲ or ▼ key to select Image and press ENTER.
3. Use the ▲ or ▼ key to select Image settings and press ENTER.
4. Use the ▲ or ▼ key to select Input balance and press ENTER.
5. Use the ▲ or ▼ key to select Black balance and press ENTER.
The black balance bar scale for a typical color is displayed.
6. Toggle with ▲ or ▼ key to select Black balance red.
Image 9-46
Image 9-47
Image 9-48
Image 9-49
Image 9-50
7. Adjust the red black level on a minimal value
8. Toggle with ▲ or ▼ key to Black balance blue and 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. Toggle with ▲ or ▼ key to Black balance gree
n and adjust the Green black level until bright spots appear on the screen.
10.Toggle with ▲ or ▼ key to Black balance blue adjust the Blue black level until bright spots appear on the screen.
11.Toggle with ▲ or ▼ key to Black balance red adjust the Red black level until bright spots appear on the screen.
The projected image should now be noisy full black
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R59770180 FLM HD20 11/07/2008