Others - Acer X1161 Service Manual

3. Full On/Full Off Contrast
Procedure
Criteria
4. Uniformity
Procedure
Criteria

4-10 Others

1. Function Inspection
General
Factory Default
- Full white pattern & full black pattern
- Use CL100 to measure brightness values of full white
pattern P5 & full black pattern B5
- Follow Contrast formula to calculate contrast values.
☼ Contrast Formula
P5/B5
Note: P5=center of white image
B5 = the center of black image.
● 2500: 1 (for X1161)
● 2100: 1 (for X1261)
- Full white pattern
- Use CL100 to measure brightness values of P1~P9
(see image: full white).
- Follow the Uniformity formula to calculate
average values.
☼ Uniformity Formula
JBMA Uniformity = Avg. (P1, P3, P7, P9)/P5 X100%
● 65%
- All OSD functions must be checked for functionality.
When OSD menu is displayed, there shall be no
visible peaking, ringing, streaking, or smearing
artifacts on the screen.
- The factory settings (with appropriate centering,
X1161/X1261 Confidential
Full white pattern
Full black pattern
4-12