Texas Instruments MATRIX 3000, DW30 Contrast, Brightness, Gamma, Menu, OSD On-screen display

Section 3: Operation

Contrast

Bright

Gamma

Menu

OSD

Contrast

Press Contrast to change the amount of white in your images. Use keys until you reach the desired level of contrast—for best results, start low and increase so that whites remain bright but are not distorted or tinted, and that light areas do not become white (i.e., “crushed”). Conversely, low contrast causes dim images. See 3.5, Adjusting the Image (Image Settings subsection).

Brightness

Press Bright to increase or decrease the amount of black in the image. Use keys until you reach the desired level of contrast—for best results, start high and decrease so that dark areas do not become black (i.e., “crushed”). Conversely, overly high brightness changes black to dark gray, causing washed-out images. See 3.5, Adjusting the Image (Image Settings subsection).

Gamma

“Gamma” determines how gray shades are displayed between minimum input (black) and maximum input (white) for a given amount of signal. The proper setting helps maintain optimized blacks and whites while ensuring a smooth transition for the “in- between” values utilized in grays. Unlike brightness and contrast controls, the overall tone of an image can be lightened or darkened without changing the two extremes, and your images will be more vibrant yet with good detail in dark areas.

The normal gamma setting of 2.2 is correct for most signals and conditions. If excess ambient light washes out the image and it becomes difficult or impossible to see details in dark areas, lower the gamma setting to compensate. This will improve contrast ratio while maintaining good details for blacks.

Menu

Press Menu to enter or exit the projector’s menu system.

OSD (On-screen display)

Press OSD followed by		to hide the projector’s menu system during use. To see
the menus again, do one of the following:
•	Press and hold OSD	for a second
•	Press and release OSD	followed immediately by

•Press OSD OSD

Invisible menus are fully functional, enabling “hidden” access to numbered features and image adjustments by entering the corresponding sequence of key-presses on the keypad.

NOTES: 1) With OSD “on”, you can still hide error messages and slidebars by disabling these options in the Menu Preferences menu.

013-100149-02 Rev. 1 (01/07) Christie DS+60/DW30/Matrix 3000 User’s Manual 3-7