Other - Acer X1160Z Service Manual

3. Ful On/Full Off Contrast
Procedure
Criteria
4. Uniformity
Procedure
Criteria
4-10 Others
1. Functional Inspection
X1160 Series/X1260 Series/X1160Z Series/X1260K Refresh Confidential
- Full white pattern & full black pattern
- Use CL100 to measure brightness values of full
white pattern P5 & full black pattern B5 ( see im-
age: full white)
- Follow Contrast formula to calculate contrast
values.
☼ Contrast Formula
P5/B5
note: P5=center of white image
B5 = the center of black image.
- 1500:1 (X1160/X1260/X1160Z)
- 1400:1 (X1160 Refresh/X1260 Refresh/
X1160Z Refresh)
- 400:1 (only for X1260K Refresh)
- Full white pattern
- Use CL100 to measure brightness values of
P1~P13 (see image: full white).
- Follow the Uniformity formula to calculate
average values.
ANSI Uniformity = Avg. (P1, P3, P7, P9)/P5X100%
- 65 %
4-12