Philips C221V2SB/01, Руководство по обслуживанию

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Black Dot Defects Black dot defects appear as pixels or sub pixels that are always dark or ‘off’. That is, a dark dot is
a sub-pixel that stands out on the screen when the monitor displays a light pattern. There are two types of black dot
defects:
Proximity of Pixel Defects
Because pixel and sub pixels defects of the same type that are near to one another may be more noticeable,
Philips also specifies tolerances for the proximity of pixel defects.
Pixel Defect Tolerances
In order to qualify for repair or replacement due to pixel defects during the warranty period, a TFT LCD panel in a
Philips flat panel monitor must have pixel or sub pixel defects exceeding the tolerances listed in the following
tables.
BRIGHT DOT DEFECTS ACCEPTABLE LEVEL
MODEL 191V2/221V2
1 lit subpixel 3
2 adjacent lit subpixels 1
3 adjacent lit subpixels (one white pixel) 0
Distance between two bright dot defects * >15mm
Total bright dot defects of all types 3
BLACK DOT DEFECTS ACCEPTABLE LEVEL
MODEL 191V2/221V2
1 dark subpixel 5 or fewer
2 adjacent dark subpixels 2 or fewer
3 adjacent dark subpixels 0
Distance between two black dot defects * >15mm
Total black dot defects of all types 5 or fewer
TOTAL DOT DEFECTS ACCEPTABLE LEVEL
MODEL 191V2/221V2
Total bright or black dot defects of all types 5 or fewer
Note: * 1 or 2 adjacent sub pixel defects = 1 dot defect
This monitor is ISO9241-307 compliant.