9. Image
These two references also set the range in which the ADC will work for that particular source (this explains also why each input
balance setting is linked to a particular source and thus saved in the image
fi
le).
9.3.7.2
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 9-31
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 9-32
How to adjust
1. Press
Menu
to activate the menus and select
Image
→
Image Settings
→
Input Balance
. (image 9-33, image 9-34, image 9-35,
2. Press
ENTER
to select.
3. Do you want to use an internally generated test pattern ?
If yes, use the
▲
or
▼
key to select
Adjustment Pattern
and press
ENTER
to toggle between [on] and [off]
If no, adjust on the selected source.
4. Use the
▲
or
▼
key to select
Red
below
Black balance
and press
ENTER
.
5. Adjust the red black level on a minimal value
6. Use the
▲
or
▼
key to select
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 in
fl
uencing 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.
R5905158 HDF W SERIES 10/07/2012
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Содержание HDF W series
Страница 1: ...HDF W series Installation manual R5905158 01 10 07 2012 ...
Страница 4: ......
Страница 14: ...1 Safety 10 R5905158 HDF W SERIES 10 07 2012 ...
Страница 35: ...3 Physical installation Image 3 30 1 2 3 F Image 3 31 Center focusing R5905158 HDF W SERIES 10 07 2012 31 ...
Страница 42: ...3 Physical installation 38 R5905158 HDF W SERIES 10 07 2012 ...
Страница 60: ...5 Getting started 56 R5905158 HDF W SERIES 10 07 2012 ...
Страница 66: ...6 Quick set up adjustment 62 R5905158 HDF W SERIES 10 07 2012 ...
Страница 86: ...8 Input 82 R5905158 HDF W SERIES 10 07 2012 ...
Страница 126: ...10 Layout 122 R5905158 HDF W SERIES 10 07 2012 ...
Страница 136: ...11 Lamp 132 R5905158 HDF W SERIES 10 07 2012 ...
Страница 166: ...12 Alignment 162 R5905158 HDF W SERIES 10 07 2012 ...
Страница 224: ...14 Service 220 R5905158 HDF W SERIES 10 07 2012 ...
Страница 226: ...15 Maintenance 222 R5905158 HDF W SERIES 10 07 2012 ...
Страница 243: ...17 Servicing 1 Image 17 14 Z axis alignment R5905158 HDF W SERIES 10 07 2012 239 ...
Страница 244: ...17 Servicing 240 R5905158 HDF W SERIES 10 07 2012 ...
Страница 254: ...C Standard source files 250 R5905158 HDF W SERIES 10 07 2012 ...
Страница 258: ...D DMX chart 254 R5905158 HDF W SERIES 10 07 2012 ...
Страница 264: ...E Stacking HDF W series projectors 260 R5905158 HDF W SERIES 10 07 2012 ...