Optical Performance Measure - Acer S1200 Service Manual

4-8 Optical Performance Measure

Inspection Condition
- Environment luminance: 5 Lux
- Product must be warmed up for 3 minutes
- Distances from the screen: 0.71 M
- Screen Size: 60 inches diagonal
- Reset to default before measurement
1. Test equipment
Procedure
2. Brightness
Procedure
Criteria
3. Ful On/Full Off Contrast
Procedure
- Press "Power→Left→Left→Menu".
- Select "Spoke Test"
- Full white pattern
- Use CL100 to measure brightness values of
P1~P9.
- Follow the brightness formula to calculate
brightness values.
☼ Brightness Formula
Avg.(P1~ P9)x1.1m
- 1100 lumens
- 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)
2
S1200
Full white pattern
Full black pattern
Confidential
4-10