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5.6 Optical Lens Focusing
What can be done?
The optical focusing procedure is performed separately for each lens. The appropriate CRT will be switched on as the user proceeds
through the optical focusing adjustment sequence.
How to focus
1. To focus the center, loosen the wing nut at the rear end of the lens.
2. Rotate the lens barrel until the center fo the image is clearly focussed.
3. Loosen the wing nut at the front end of the lens.
4. Rotate the lens barrel until the corners of the image are clearly focussed.
Note: Repetition of these adjustments may be necessary to optimize optical focusing.
5. Press ENTER key to continue to the next color. (menu 5-9)
OPTICAL LENS FOCUSING
1.
Loosen the nut on the
rear of the xxxx lens.
Rotate the lens barrel
to focus the center
of the image.
Then tighten the nut.
2.
Loosen the nut on the
front of the xxxx lens.
Rotate the front
section of the lens to
focus the corners of the
image.
Then tighten the nut.
<ENTER> to continue
<EXIT> to return
Menu 5-9
5.7 Electrical focusing
What can be done?
The electrical focus for red, green and blue is factory preset. The electrical focus can be readjusted. Adjust only if really necessary.
Mark first for future reference the blue focus control before adjusting. Focus adjustment should be done with hight contrast settings.
How to readjust?
1. Ensure the lenses are correctly focused.
2. Open the top cover.
3. Adjust separately the focus control for red and green for the sharpest image on the screen. (image 5-4)
R5976585 BARCO CINE7 26022003
5. Installation Adjustment
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