Electrical Requirements - Acer AL1922R Service Manual

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Electrical Requirements

Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified.
Ambient light
Viewing distance
Warm up time
All specifications
Fully functional
Measuring equipment
Control settings
User brightness control
User contrast control
Blue/white balance control
Power input
Ambient temperature
Analog input mode
Measurement systems
The units of measure stated in this document are listed below:
1 gamma = 1 nano tesla
1 tesla = 10,000 gauss
cm = in x 2.54
lb = kg x 2.2
degrees F = [°C x 1.8] + 32
degrees C = [°F - 32]/1.8
u' = 4x/(-2x + 12y + 3)
v' = 9y/(-2x + 12y + 3)
x = (27u'/4)/[(9u'/2) - 12v' + 9]
y = (3v')/[(9u'/2) - 12v' + 9]
nits = cd/(m2) = Ft-L x 3.426
lux = foot-candle x 10.76
Dark room < 1 cd/m²
40 cm for LCD performance, 20 cm for LCD failures
>30 minutes
5 seconds
Chroma 7120 signal generator or equivalent, directly
Connected to the monitor under test.
Minolta CA100 photometer, or equivalent
Set to Factory preset value (cut off raster)
Set to factory preset value, which allows that the brightest two of 32 linear
distributed gray-scales (0~ 700mv) can be distinguished.
In the center (unless otherwise specified)
100 V ~ 240 V
20℃+5℃
1280 x1024
8

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