NEC MultiSync FE700 Serviceanleitung Seite 106

2. CRT
2.1 CRT Face plate defect
2.1.1 Inspection condition
(1) In the operating condition, observe the defect on the screen under following
condition : 9,300K (x=0.283, y=0.297) white raster or the element monochrome raster
which its brightness is 34cd/m
10 Lux
(2) In the non-operating condition, observe the defect of the screen under light of about
200 Lux, measured at the faceplate.
(3) Inspection shall be made more than 45 cm away from the screen.
(4) Observe the screen on white raster and each monochrome color of red, green and blue.
2.1.2 Division of zone
A screen is divided into following 2 zones.
zone A : Area inside the rectangle that its size measures H : 300 mm, V : 225 mm in the
center of screen.
zone B : Area outside the above rectangle
2.1.3 Limits
(1) CRT face defect
(a) Distance ( minimum distance )
(b) Average diameter
+
a b
Turn of
2
2
(10ft-L) on the screen center surrounding light is about
a
b
(a: length, b: width)
6- 5