Optoma EP776 - Page 49

EP776 Series/EP782 Series
Condential
4-7
Criteria - From screen 1.5 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: DVI (HDMI) 720p,1080i
- Test Pattern: Master, In focus II or SMPTE RP-
133
* Please refer to 4-2 to enter service mode.
Use 720P & 1080i signal, master pattern to do
HDTV test. Color cannot discolor to purple and
blue. If the test result is discoloration or icker-
ing, please return the unit back to repair cent-
ers.
Inspection item - Check if each color level is well-functioned.
- color saturations
Criteria - 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 acceptable to have few lines ashing at the
center and on the edge of 1080i image. How-
ever, rest of the image should appears stable.
- RGBW should all appear normal on the screen
and sort from R -G-B-W.
- Color levels should be sufcient and normal.
(the unidentied color levels on both left and
right sides should not over 8 color levels.)
- Grey level should not have abnormal color or
heavy lines.
- The PC mode functionally sure be workable
include support format with frequency and auto
detected functional will be workable
InFocus II
/ 64 gray RGBW
Master
MEME Sony
SMPTE RP-133