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Primary Display ➤
Adjustments
• Geometry functions adjust geometric distortions of the
display such as its size, keystone, pincushion, bow,
linearity, and skew. Access Geometry functions via
the Geometry menu – press
• Convergence is used to align the red, green, and blue
color components of the image. It is described in
section 3.6, Convergence Registration.
Most adjustment functions, when selected, display a
slidebar overlayed on the source image. The slidebar
displays the current setting and indicates which arrow
keys to use for making the adjustment. Adjustment
settings are stored in the current setup memory (Input
or Recall). There are two exceptions: 1) If the current
setup memory is locked, new adjustment settings are
shown but not stored; they are discarded when another
setup memory is selected. 2) If ASR is on for the current
input and an ASI is performed, the settings are only
temporary and are not saved in the current setup memory.
For new images, where much adjustment is required,
it is recommended that adjustments be made using the
sequence illustrated above. When making picture or
geometry adjustments, follow the sequence displayed
in the adjustment menu.
Tip: When making many picture or geometry adjustments, press
adjustment to return the cursor back to its previous menu item position.
Brightness
The Brightness function is used to adjust the black level of the image.
To adjust brightness, press
with a black background, adjust until the background just disappears
(black becomes a very dark grey).
Note: If room lighting changes, it may be necessary to re-adjust brightness.
Contrast
The Contrast function is used to adjust the contrast between the light and
dark areas of the display image.
To adjust contrast, press
image loses detail and clarity. If set too low, it may be difficult to distinguish
between foreground and background information.
on the keypad.
GEOM
then
or . If video or data is displayed
BRITE
then
or . If contrast is set too high, the
CONT
OPERATION
NORMAL
ADJUSTMENT
SEQUENCE
UNADJUSTED
IMAGE
Primary
Adjustments
Picture
Adjustments
Geometry
Adjustments
Convergence
Registration
FULLY
ADJUSTED
IMAGE
after each
ENTER
3.17
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