Optoma EW536 Service Manual page 38

8. Color performance
Procedure
Inspection item
Criteria
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 ac-
ceptable. However, the word should at least be recog-
nizable.)
- Test equipment: video generator.
- Test signal: 480p, 720p, 1080p
- Test pattern: Master, 64 gray RGBW or SMPTE bar
* Please refer to 4-2 to get into service mode. 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 abnor-
mal 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 uni-
dentified color levels on both left and right sides should
not over 8 color levels.)
- Gray level should not have abnormal color or heavy
lines.
- If color appears abnormal, please get into service
mode to do Color Wheel Index adjustment.
- The PC mode functionally sure be workable include
support format with frequency and auto detected func-
tional will be workable.
EW536/HD66/DW318
Master
64 gray RGBW
SMPTEbar
Confidential
4-7