Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Monitor NOKIA_446PRO446F
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8. Screen and Faceplate Blemishes
8.1. Definitions of inspection conditions and terms
8.1.1. Standard observing condition
Distance: 30 cm from screen face. Angle 45 from Z axis.
Cosmetic inspection without raster should be done under luminance: 500lx MIN.
Color and brightness
8.1.2. Zone division
273.6 mm
A B
273.6 mm
other screen area
A Zone: 273.6 mm x 273.6 mm
B Zone: The balance of useful screen area
8.1.3. Minimum distance beetween defects
8.1.4. Average diameter of defect
Long diameter + Short diameter
Average diameter =
2
8.2. Face defect standard (black spot, stain)
Average diameter Quantity allowed Minimum
of defects A B Total distance
less than 0.5 4 4 6 30
less than 0.3 no limit ---
446F 31
8.3. Glass blemish
8.3.1. Scratch
Width Length of single scratch
W>0.05 No limit
0.05
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