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2.3 Model PH-50XX:
There may appear three kinds of defective points for this model as shown in Fig.3 i.e., bright spot
(remain bright); dark spot (non-illuminating); flickering spot (remain flickering).
However they should not exceed the specification as in table 3. Otherwise the product shall be deemed
as sub-standard.
Table 3 Criterion for Three Kinds of Defective Points
Item Kind
1
Dark spots
2
Bright spot
3
Flickering spots
Zone B
Zone A
H
W/4
Figure 2
Area A
No more than 4
No more than 1
No more than 1
W
W/2
W/4
Defective Points
Area B
No more than 10
No more than 3
No more than 3
5
H/4
H/2
H/4
Remark
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.
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