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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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This service manual for the Kenwood KT-990D was reproduced really well ,is very legible and manual is complete.Combined with the low price paid,in the future,I will be checking Owner-Manuals.com any time I need a manual.
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When I purchased this manual I had my doubts regarding the quality as the price was so reasonable as compared to other outlets.
The manual itself is of high standard the print is very clear as are the diagrams. Obviously with the diagrams one has to zoom in otherwise it is to small to be able to read.
Overall I am very pleased with the company who delivered as they said and with the manual they supplied.
I occasionally require a manual and now having registered with this company I shall order from them in the future.
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I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
22
300WN5
Go to cover page
Definition of Pixel Defects
3. 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 subpixel defects exceeding the tolerances listed in the following tables.
0. General
This section explains the different types of pixel defects and defines acceptable defect levels of each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a TFT LCD panel must exceed these acceptable levels.
1. Definition of Pixels and Subpixels
A pixel, or picture element , is composed of three subpixels in the primary colors of red, green and blue. Many pixels together from an image. When all subpixels of a pixel are lit, the three colored subpixels together appear as a single white pixel. When all are dark, the three colored subpixels together appear as a single black pixel. Other combinations of lit and dark subpixels appear as single pixels of other colors.
BRIGHT DOT DEFECTS MODEL 1 lit sub pixel 2 adjacent lit sub pixels 3 adjacent lit sub pixels (one white pixel)
ACCEPTABLE LEVEL 300WN5 3 or fewer 0 0
Subpixel
Subpixel
Subpixel
Distance between two bright dot defects* Total bright dot defects of all types
Pixel
25 mm or more
2 or fewer
BLACK DOT DEFECTS
ACCEPTABLE LEVEL 300WN5 5 or fewer 1 or fewer 0 15 mm or more
2. Types of Pixel Defects
MODEL
Pixel and subpixel defects appear on the screen in different ways. Bright dot defects Bright dot defects appear as pixels or subpixels that are always lit or "on"�. These are the types of bright dot defects:.
1 dark sub pixel 2 adjacent dark sub pixels 3 adjacent dark sub pixels Distance between two black dot defects*
One lit red, green or blue subpixel
Total black dot defects of all types TOTAL DOT DEFECTS MODEL Total bright or black dot defects of all types
5 or fewer
Two adjacent lit subpixels: - Red + Blue = Purple - Red + Green = Yellow - Green + Blue = Cyan (Light Blue)
ACCEPTABLE LEVEL 300WN5 5 or fewer
Three adjacent lit subpixels (One white pixel)
Note: 1 or 2 adjacent subpixel defects = 1 dot defect
Black dot defects Black dot defects appear as pixels or subpixels that are always dark or "off"�TThese are the types of black dot defects:
One dark subpixel
Two or three adjacent dark subpixels
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