Correcting Dual Projector Vertical Keystone; Correcting Vignetting - Christie CP2208 User Manual

Correcting dual projector vertical keystone

1. On both projectors, turn the lamp on and open the douser. See
29
.
2. Align the dual projector images. See
3. On the top projector, display the DC2K Framing Green test pattern. See
pattern on or off
4. On the bottom projector, display the DC2K Framing Red test pattern. See
pattern on or off
5. Identify which projector has the vertical keystone issue. In this example, the top projector has
the vertical keystone issue:
If both projectors have the horizontal keystone issue, correcting the image on the bottom
projector should resolve the issue on both projectors.
6. On the top projector, remove the locking brackets from the projector feet.
7. Raise or lower the rear feet of the top projector until the projected images of both projectors
are vertically aligned. The feet should be raised or lowered an equal amount.
8. Reinstall the locking brackets removed in step 6.
9. On the projector touch panel controller (TPC), tap the Lens Adjust (
screen and then tap the forward (
bring the horizontal lines closer together.
10. If required, on each projector, tap the Lens Adjust (
right ( ) focus icons in the Focus area until both images are the same size and focused.

Correcting vignetting

The term vignetting applies to an image that is brighter at the center than it is at the sides. If your
image suffers from vignetting, the lens has reached the end of its offset travel range. If your
installation does not allow the image to be centered with the center of the screen, move the entire
projector in the direction of lens travel.
CP2208 User Manual
020-101916-02 Rev. 1 (08-2015)
Aligning dual projector images on page 32
on page 75
.
on page 75
.
) or backward (
Adjusting the Image
Turning the lamp on
Turning a test
Turning a test
) icon on the main
) arrow icons in the Offset area to
) icon and then tap the left (
on page
.
) and
36