Section 3: Operation

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.

3-26 Christie DS+60/DW30/Matrix 3000 User’s Manual

013-100149-02 Rev. 1 (01/07)

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Texas Instruments DW30, MATRIX 3000 user manual Noise Reduction, Color Space, Video Options Submenu