Acer X1161 Service Manual page 58

Inspection item
Criteria
8. Color performance
Procedure
Inspection item
Criteria
- Test signal: analog 1024 x 768 @60Hz
- Test pattern: Full screen
- Focus check
- From screen 2.38 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 ad-
justment is acceptable. However, the word should
at least be recognizable.)
- Test equipment: video generator.
- Test signal: 480p, 720p, 1080i
- Test pattern: Master, 64 gray RGBW or SMPTEbar
* 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
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 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 functional will be workable.
X1161/X1261 Confidential
Full screen
Master
64 gray RGBW
SMPTEbar
4-7