Barco Galaxy NW-7, Руководство пользователя

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7. Advanced
7.4.2.2 Manual gain control on Video
What can be done ?
Beside the Automatic gain control there is the possibility to manually set the gain of the incoming video signal. When the Automatic
gain control is enabled (ON), the manual setting does not affect the gain, Automatic gain control must therefore be disabled. The
manual gain control must be done on an external pattern with white areas (grey scale bar pattern)
How to set the Manual Gain Control ?
1. Press MENU to activate the Tool bar
2. Press → to select the Image item
3. Press ↓ to Pull down the Image menu
4. Use ↑ or ↓ to select Settings
5. Press → to pull down the menu
6. Use ↑ or ↓ to select Gain Control on Video
7. Press → to pull down the menu
8. Use ↓ or ↑ to select Manual
Image 7-17
9. Press ENTER
A scroll bar is displayed
Image 7-18
10.Use ← or → , the numeric keys on the remote, or the keypad to change the gain so as to obtain homogeneous white parts in the
image.
7.4.3 Aspect ratio
Aspect ratios
The standard aspect ratio used in broadcast television is the 4:3 ratio.
However, most of the DVD sources nowadays use the wide screen 16:9 or even the Cinemascope TM 2.35:1 aspect ratio.
Some DVD sources may even use the anamorphic 16:9 or anamorphic 2.35:1 to take advantage of the higher vertical resolution
offered by the 4:3 ratio. The term “anamorphic” means that the original wide screen image is squeezed in order to
fi t the 4:3 aspect
ratio.
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