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10. Settings
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 10-24
Black balance
1. Press MENU to activate the Toolbar
2. Press → to select the Image item
3. Press ↓ to Pull down the Image menu
4. Use ↑ or ↓ to select In put balance
5. Press → to pull down the menu
6. Use ↓ or ↑ to select Black balance (image 10-25)
7. adjust the red black level on a minimal value (image 10-26, image 10-27)
8. adjust the blue black level on a minimal value
Note: thisminimal value is not necessary , provided that the2 other colors arenot influencing too much thecolor 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 transition due
to the contribution of these two other color signals.
9. Adjust the green black level until bright spots appear on the screen
10.adjust the blue black level on a minimal value
Note: thisminimal value is not necessary , provided that the2 other colors arenot influencing too much thecolor 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 transition due
to the contribution of these two other color signals.
11.Adjust the green black level until bright spots appear on the screen
12.Adjust the Blue black level until bright spots appear on the screen
13.Adjust the red black level until bright spots appear on the screen
The projected image should know be noisy full black
Image 10-25
78 R5976741 MGP 15 MEDICAL GRADE PROJECTOR 28/04/2004