4. Bright�

Blemish�

 

Procedure

 

- Test equipment: video generator

 

 

- Test signal: analog 1024 x 768@60Hz

 

 

- Test Pattern: Gray 15

Inspection item

- Bright blemish check.

Criteria

 

- The bright blemish should be no more than 10

 

 

under gray 15 pattern.

 

 

- Ref. Defect specification table.

5. Dark Blemish�

 

Procedure

 

- Test equipment: video generator.

 

 

- Test signal: analog 1024x768@60Hz.

 

 

- Test Pattern: Blue 60

Inspection item

- Dark blemish check.

Criteria

 

- The dark blemish should be no more than 10

 

 

under blue 60 pattern.

 

 

- Ref. Defect specification table

6. Focus test

Procedure

- Test equipment: video generator.

 

- Test signal: analog 1024 x 768@60Hz

 

- Test Pattern: Full screen

Inspection item

- Focus check

Criteria

- From screen 2 M via visual to check the

focus, look at the entire screen, focus shall

be clear, crisp, and sharp over the entire surface of the display pattern. (Blur word on one of the corner after adjustment is acceptable. However, the word should at least be recognizable.)

Gray 15

Blue 60

Full screen

P3150/P3250/P3150 Refresh/P3250 Refresh/P3251

Confidential

 

 

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Acer P3150 REFRESH, P3250 REFRESH service manual Focus test, Dark Blemish