Optoma EX330 Service Manual page 37

7. Focus test
Procedure
Inspection item
Criteria
8. Color performance
Procedure
Inspection item
Criteria
- Test equipment: video generator.
- Test signal: analog 1024 x 768@60Hz
- Test Pattern: full screen
- Focus check
- From screen 2.4 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.)
- Test equipment: video generator.
- Test signal: 720p, 1080i, 1080p
- Test Pattern: Master, 64 gray RGBW or
SMPTE bar
* Please refer to 4-2 to get into service mode 1.
Use 720p & 1080p signal, master pattern to do
HDTV test. Color cannot discolor to purple and
blue.
- Check if each color level is well-functioned.
- Color saturation
- Screen appears normal. It should not have any
abnormal condition, such as lines appear on the
screen and so on.
- Color appears normal.
- It is unacceptable to have few lines flashing.
- RGBW should all appear normal on the screen
and sort from R-G-B-W.
- Color levels should be sufficient and normal.
(The unidentified color levels on both left and
right sides should not over 4 color levels.)
- Gray level should not have abnormal color or
heavy lines.
- If color appears abnormal, please get into service
EX330/EW330/EX330(1W)/EW330(1W)
Master
64 gray RGBW
SMPTE BAR
Confidential
4-7