Barco CLM W6, Service Manual

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4-8
CLM W6_CLM HD6 Jan 3, 202
Chapter 4 Function Test & Alignment Procedure
Full screen
5. Dark Blemish
Procedure - Test equipment: video generator
- Test signal: 920 x 080 @60Hz
- Test Pattern: Blue 60
Inspection item - Dark blemish check
Criteria
- The dark blemish should be no more than 0
under blue 60 pattern.
- Ref. Defect specification table
6. Focus Test
Procedure - Test equipment: video generator
- Test signal: 920 x 080 @60Hz
- Test Pattern: Full screen
Inspection item - Focus check
Criteria - From screen .5 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.)
7. Color Performance
Procedure - Test equipment: video generator.
- Test signal: 480p, 720p, 080p
- Test Pattern: Master, 64 gray RGBW or SMPTEbar
* Use 480p, 720p, 080p signal, master pattern to do
HDTV test. Color cannot discolor to purple and blue.
Inspection item - Check if each color level is well-functioned.
- Color saturation
Criteria - Screen appears normal. It should not have any
abnormal condition, such as lines appear on the
screen and so on.
Blue 60
Master
64 gray RGBW