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7. Random Access Adjustment Mode
7.3.6 Input Balance
Why adjusting the input balance?
The input balance is normally correct adjusted in the factory. But due to signal distribution or signal transmission, a color imbalance
can be the result. This imbalance can be adjusted source by source for color critical applications. These adjustments influence only
the actual custom adjustment file. This procedure is not so easy.
There are 2 different adjustment procedures, one for RGB (included Video and S-Video) and one for YUV input
signals.
Before starting the Input Balance function, generate a signal with dominant black and white areas.
7.3.6.1 Input Balance for RGB input signals
Step to be taken for RGB input signals
To adjust the input balance, the following steps have to be executed in the following
order :
1. Start with the black balance.
2. Continue with the white balance.
The default values are normally loaded when selecting a source. If the image is not as desired, continue with
the next procedure.
Black balance adjustment
1. Is the input balance menu already activated ?
If yes, go to step 4
If no, go to step 2
2. Push the cursor key ↑ or ↓ to highlight Input Balance. (menu 7-33)
3. Press ENTER to select.
The Input Balance menu will be displayed. (menu 7-34)
4. Push the cursor key ↑ or ↓ to highlight Black Balance menu 7-34.
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 cursor keys ↑ or ↓ or ← or → until there is no red or blue noise visible in the black areas.
PICTURE TUNING
COLOR TEMPERATURE
GAMMA
COLOR SPACE
NOISE REDUCTION
INPUT BALANCE
Select with ↑ or ↓
then <ENTER>
<EXIT> to return
Menu 7-33
INPUT BALANCE
BLACK BALANCE
WHITE BALANCE
DEFAULT
Select with ↑ or ↓
then <ENTER>
<EXIT> to return
Adjust
red with ↑ or ↓
blue with ← or →
Menu 7-34
White balance adjustment
1. Push the cursor key ↑ or ↓ to highlight W hite Balance. (menu 7-35)
2. Press ENTER to select.
3. Put the Gain Red and Gain Blue to -32.
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