XOCECO PH-50FB31, Service Manual, Page: 6 / 50

4
W
W/4 W/2 W/4
Zone B
Zone A
H
H/4
H/2
H/4
deemed as sub-standard.
Figure 2 Defective Points
Table 2 Criterion for Three Kinds of Defective Points
Item Kind Area A Area B Remark
1 Dark spots No more than 4 No more than 10
2 Bright spot No more than 1 No more than 3
3 Flickering spots No more than 1 No more than 3
Total number of defective
points in A and B shall not
exceed 14. The distance
between two defective points
shall not be shorter than
10mm.