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Section 3: Operation
3-26 Christie DS+60/DW30/Matrix 3000 User’s Manual 013-100149-02 Rev. 1 (01/07)
Noise Reduction
“Noise Reduction” is similar to the “Filter” control, but operates in the post-sampling
digital domain with a more subtle effect. Higher settings are most useful for clearing
up noisy RGB images such as those from a PC. Adjust as desired, keeping in mind
that reducing noise (which reduces high frequencies) may also soften the image.
Color Space
“Color Space” determines how the color components of an analog
input signal are decoded for accurate color in the display.
Selecting a color space option is useful only for analog signals
connected to
INPUT 1, INPUT 2, or INPUT 5. Although color space
for these analog signals is automatically determined by the
projector, in some circumstances you may wish to override this and manually set a
specific color space.
NOTE: For digital signals or for signals connected to
INPUT 3 or INPUT 4, the color
space function is entirely automatic and the pull-down list disabled.
The current color space appears in the Image Settings menu. Press
to select a
different option:
• Select
RGB unless you are using component video at INPUT 1, 2, or 5.
• Select
YPbPr (Video) with a standard definition televised signal (SDTV)
• Select
YPbPr (HDTV) with a high definition televised signal (HDTV).
NOTE: When certain RGB signals are first connected, the projector may not initially
recognize them as RGB and will incorrectly decode their color information as YPbPr
(video). These signals appear magenta and can include:
• RGB signals in NTSC, PAL, SECAM frequency ranges
• Scan-doubled sync-on-green
• Scan-quadrupled sync-on-green
For these signals, change the Color Space to RGB, then define a new channel for
future use
Video Options
— SUBMENU
This submenu is used with video sources only (
INPUTS 3 or 4).
ENABLE DECODER AGC: Automatic
Gain Control (AGC) affects decoded
video images only. Enter a checkmark
(default) in most instances—this
activates the decoder’s AGC circuit to
ensure properly bright images. Delete
the checkmark if a decoded video image
exhibits strange color artifacts such as
stripes in highly saturated colors,
indicating an incompatibility between
this source and the AGC.