NEC MultiSync FE700 Serviceanleitung Seite 110

total number of a low contrast flaws
Standard classified by zones
Total ( zone A + zone B )
NOTE 1 : Acceptable interval shall be larger one in the case that defects have different
interval.
NOTE 2 : There is no standard regarding zone C. Therefore, no defect is accepted that
may deteriorate the value of products. Defect level by consultation. Discuss is necessary.
NOTE 3 Tolerance of defect size is approx. 10%.
(3) Reflectance
Less than 0.7% (at the screen center)
(4) Reflected color unevenness
The reflected color unevenness which can be confirmed easily in visual check must not
exist.
(5) Strength
Wear and abrasion resistance : Coating should withstand 30 minute scrubbing with a #50
eraser. (load; 500g)
Pencil resistance : Coating should withstand 3H pencil. (according to conformed item of
Coating Strength JIS - 5400)
[Supplementary explanation]
Definition of striped coating (tear) and flaw (rubbed coating). (according to JIS)
Striped coating (tear) : Tear that reaches to the glass surface.
Flaw (rubbed coating) : Scratches that slightly dig into the surface of the coating
(6) Dirt, cloudiness, color irregularity, streaks and other defects
No defects should not be detected when white or green raster are on the screen.
Set the new boundary sample if necessary.
zone A
6
6- 9
zone B
8
10