ViewSonic PJ513D-1 Service Manual page 26

Table 1
Classification
Lighting positioning
Inspection position relative to part
Inspection distance
1.1.1.3 Inspection interval (time)
Inspection interval is a function of surface area.
Time for visual inspection: 10sec.
Table 2
Parts Size "A" surface
Time
TABLE 3 General Product of plastic outlook of dot, blemish, and others spec inspection standard
Spec
( Area cm2 )
P < 0.2 mm2
Distance ≥ 2cm
Particle 0.2≦P< 0.3 mm2
Blemish
Distance ≥ 4cm
|
0.3≦P <0.4mm2
Color
Distance ≥ 4cm
spot
P<0.1 mm2
Distance ≥ 2cm
0.1≦P<0.2mm2
Particle
| Distance ≥ 4cm
Spot with 0.2≦P < 0.3mm2
same
Distance ≥ 4cm
color
0.3≦P < 0.5mm2
Distance ≥ 5cm
Total
Note:
1. Use the 20*20 criteria to the area less than 20*20; 50*50 inspection criteria to the area 20*20≦A<50*50; etc.
(Particle/Blemish/Color Spot)
1.1 Definition of surface A, B, C refer to 6.2
1.2 Blemish around the ViewSonic Bird logo, name plate and silk screen must be equal or smaller than 0.05 mm
1.3 Bubble on the surface is to be reject.
ViewSonic Corporation
"B" surface
10 sec 10 sec
A surface
(Number of defect)
20*20 50*50 70*70 100*100 20*20 50*50 70*70 100*100 20*20 50*50 70*70 100*100
Ignore Ignore Ignore Ignore
2 3 4
0 0 0
Ignore Ignore Ignore Ignore
4 4 5
3 4 4
2 2 3
4 4 5
Area A Area B
Above of inspected part
90º 90º
40~50 cm 40~50 cm
"C" surface
10 sec
B surface
(Number of defect)
Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore
5 2 3 4
0 2 3 4
Ignore Ignore Ignore Ignore Ignore Ignore Ignore Ignore
6 5 5 6
5 4 5 5
4 3 3 4
6 5 5 6
23
Confidential - Do Not Copy
Area C
90º
40~50 cm
C surface
(Number of defect)
5 4 4 5
5 3 4 5
7 6 6 7
6 6 7 7
5 4 4 5
7 6 6 7
PJ513D-1
6
6
8
8
6
8
2