Philips 200P6IS/00 Service Manual

10Go to cover page200P6 LCD Philips Pixel Defect PolicyPhilips' Flat Panel Monitors Pixel Defect PolicyPhilips strives to deliver the highest quality products. Weuse some of the industry's most advanced manufacturingprocesses and practice stringent quality control. However,pixel or sub pixel defects on the TFT LCD panels used inflat panel monitors are sometimes unavoidable. Nomanufacturer can guarantee that all panels will be freefrom pixel defects, but Philips guarantees that any monitorwith an unacceptable number of defects will be repaired orreplaced under warranty. This notice explains the differenttypes of pixel defects and defines acceptable defect levelsfor each type. In order to qualify for repair or replacementunder warranty, the number of pixel defects on a TFT LCDpanel must exceed these acceptable levels. For example,no more than 0.0004% of the sub pixels on a 15" XGAmonitor may be defective. Furthermore, Philips sets evenhigher quality standards for certain types or combinationsof pixel defects that are more noticeable than others. Thispolicy is valid worldwide.Pixels and Sub pixelsA pixel, or picture element, is composed of three sub pixelsin the primary colors of red, green and blue. Many pixelstogether form an image. When all sub pixels of a pixel are lit,the three colored sub pixels together appear as a singlewhite pixel. When all are dark, the three colored sub pixelstogether appear as a single black pixel. Other combinationsof lit and dark sub pixels appear as single pixels of othercolors.Types of Pixel DefectsPixel and sub pixel defects appear on the screen in differentways. There are two categories of pixel defects and severaltypes of sub pixel defects within each category. Bright dotdefects appear as pixels or sub pixels that are always lit or'on'. These are the types of bright dot defects:One lit red,green orblue sub pixelTwo adjacent litsub pixels:- Red + Blue = Purple- Red + Green = Yellow- Green + Blue = Cyan(Light Blue)Three adjacent litsub pixels(one white pixel)Black Dot Defects Black dot defects appear as pixels or subpixels that are always dark or 'off'. These are the types of blackdot defects:One dark sub pixel Two or three adjacent dark sub pixelsProximity of Pixel DefectsBecause pixel and sub pixels defects of the same type that arenear to one another may be more noticeable, Philips also specifiestolerances for the proximity of pixel defects.Pixel Defect TolerancesIn order to qualify for repair or replacement due to pixel defectsduring the warranty period, a TFT LCD panel in a Philips flat panelmonitor must have pixel or sub pixel defects exceeding thetolerances listed in the following tables.Note:* 1 or 2 adjacent sub pixel defects = 1 dot defectAll Philips monitors are ISO13406-2 CompliantTOTAL DOT DEFECTS ACCEPTABLE LEVELMODEL 200P6Total bright or black dot defects of all types 5 or fewerBRIGHT DOT DEFECTS ACCEPTABLE LEVELMODEL 200P61 lit subpixel 4 or fewer2 adjacent lit subpixels 2 or fewer3 adjacent lit subpixels (one whitepixel)0Distance between two bright dotdefects*Total bright dot defects of all typesBLACK DOT DEFECTS ACCEPTABLE LEVELMODEL 200P61 dark subpixel 4 or fewer2 adjacent dark subpixels 2 or fewer3 adjacent dark subpixels 0Distance between two black dot defects* 15 mm or moreTotal black dot defects of all types 4 or fewer15mm or more4 or fewer