Christie M Series User Manual page 39

Brightness Uniformity, Edge Blending and Black Level Blending should be disabled before performing
Keystone adjustments.
Under certain combinations of extreme keystone coordinates and specific signal frequency, a
keystoned image may result that is outside the bandwidth limitations of the projector. When
attempting to apply the keystone settings, a message appears on the on-screen display, indicating
that the bandwidth has been exceeded and the keystone cannot be applied. The cursor co-ordinates
for keystone adjustment remains at the failed keystone position. This allows the user to make minor
changes and attempt to reapply the corner settings. Either the co-ordinates must be adjusted, or the
free run frequency must be changed to fall within the allowed bandwidth.
The Func+Help key combination immediately disables the Keystone, Brightness Uniformity, Edge
Blending, and Black Level Blending features. This is helpful when, in some extreme keystone
configurations, some image corruption may appear and/or the menus may not be readable. Although
Func+Help disables these features, it does not overwrite their settings. If keystone is enabled again,
the same image corruption may occur. After pressing Func+Help, Christie recommends immediately
resetting Keystone settings, which sets all keystone co-ordinates to zero.
1. Enable keystone adjustments by selecting Geometry Correction > Keystone.
This enables the controls for performing 1D or 2D keystone adjustments.
2. Select a test pattern.
Christie recommends using the grid test pattern.
3. Use the left and right arrow keys to change the Horizontal or Vertical Adjust settings and
perform coarse keystone adjustments.
The corner cursors are a guide as to how the image needs to be adjusted. The outside edge of
a cursor is the outside edge of the image. It may not be possible to exactly match the screen
dimensions with the horizontal and vertical keystone controls, but these settings can be refined
when the 2D keystone settings are adjusted.
4. When adjustment of the corners is complete, click OK.
A message is displayed indicating that the projector is processing the request and the settings
are applied to the displayed image. If vertical keystone adjustments have been made, starting
to do any horizontal keystone adjustments erase the vertical settings, and vice versa.
5. After the horizontal or vertical adjustments have been made, to retain the settings select 2D
Keystone adjustments.
6. Make fine adjustments by adjusting any single corner separately.
a) Use the arrow keys to move to the required corner.
The current corner is displayed in red.
b) To select the corner, press Enter.
The current corner is displayed in green.
c) Use the arrow keys to move the selected corner to match the screen.
d) To save that position for the corner press Enter again.
e) To adjust all four corners until they match the screen, repeat steps 6a to 6d.
7. To apply the new corner positions to the image select OK.
M Series User Guide
020-101948-02 Rev. 1 (08-2018)
Copyright 2018 Christie Digital Systems USA, Inc. All rights reserved.
©
Adjusting the image
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