Clarity Wildcat WN-4030-S Service Manual page 49

Type of Defect
Non-operational (stuck)
bright pixel
Non-operational (stuck) dark
pixel
Scratches on the LCD
Blemishes
Dust and lint on the mirrors
Dust and lint on the LCD,
Fresnel lens, or polarizer
Smudges
Definitions of Optical Defects
How It Shows
Stuck as red, green or blue on a Black
internal test pattern
Stays dark on a White internal test pat-
tern
On the image displayed on the screen
Foreign material on the laminated films
Usually not visible unless very heavy
Noticeably darker areas in the image;
usually in sharp focus if on the LCD
Discontinuity of white or gray image
over a large area
Tolerance / Limit
12 stuck pixels, but no more than 5 adjacent
10, but no more than 2 adjacent
Counted if visible at 1.5 m; none allowed
Counted if greater than 1 pixel and visible at
1.5 m.
Limit: 20 when added to stuck pixels.
Counted if visible at 1.5 m; non allowed.
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