Test Patterns - Planar GX40 User Manual

5.3 Test Patterns

These are used for testing and troubleshooting.
Possibly the most important test pattern is None. This is the
one that allows the source picture to show on the screen.
All other patterns block the program picture.
All test patterns are full screen. Aspect Ratio has no effect.
To turn on a Test Pattern
1. Press three times.
MONITOR
2. Select the pattern with the arrow keys. Move between
columns using left-right arrow keys; up-down arrows
will eventually get you to the next column.
3. Press to display the highlighted test pattern.
ENTER
✎
When a Test Pattern is shown, the program
picture is blocked. To see the source picture, set
Test Pattern to None.
To turn off a Test Pattern
1. Press three times.
MONITOR
2. Select None with the up-down arrows.
3. Press .
ENTER
Test Pattern Descriptions
White, Red, Green, Blue, Black, and Gray all show
full screens of the color. Gray is 50%.
Focus Bl x's on Wh, Focus, and Logo are used in the fac-
tory.
The Gray, Red, Green, and Blue Scales show 32- or
64-step scales. You should be able to see all the steps
clearly.
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Colors shows a rainbow of colors and a gray scale at sev-
eral levels of saturation for testing uniformity.
Color Bars displays a pattern of the three primary colors
and the primary combinations along with black and white.
This is similar to, but not the same as, color bars in the tele-
vision and video field. These bars are 100% saturated.
Custom Color is discussed below ("Custom Test Pat-
terns")
Grid shows a white background with a 4 x 4 grid of
magenta lines surrounded by a 3-pixel-wide magenta bor-
der. This is useful for adjusting an image, especially in rear
projection applications.
Alignment Dashes are used to align DLP engines and
LCDs in rear projection applications.
4 x 4 Checkerboard is a pattern of 16 rectangles alter-
nating black and white. This pattern is used in the factory.
Uniformity shows marks on the screen for factory color
and brightness measurement and testing.
Custom Test Patterns
Using the Custom Test Pattern Color menu (Test Patterns
> Custom Color), you can create custom solid color test
patterns.
C u st om Test P at t ern C o lo r
R ed
G r e e n
B lu e
A ll
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6 4
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