Acer AL2051 Service Manual

Also see for AL2051: Owner's manual

Acer AL2051 Service Manual Manual pdf 8 page image

8Electrical RequirementsStandard Test ConditionsAll tests shall be performed under the following conditions, unless otherwise specified.Ambient light : Dark room (<1cd/m2)Viewing distance : 40 cm for LCD performance, 20 cm for LCD failuresWarm up timeAll specifications : 30 minutesFully functional : 5 secondsMeasuring equipment : Chroma 7120 signal generator or equivalent, directlyConnected to the monitor under test.Minolta CA100 photometer, or equivalentControl settingsUser brightness control : Set to Factory preset value (cut off raster)User contrast control : T Set to factory preset value, which allows that the brightest twoof 32 linear distributed gray-scales (0 700mv) can bedistinguished.User red/white balance,Green/white balance andBlue/white balance control :In the center (unless otherwise specified)Power input : 230V 5 , 50 3 HzAmbient temperature : 20+5Measurement systemsThe units of measure stated in this document are listed below:1 gamma = 1 nano tesla1 tesla = 10,000 gausscm = in x 2.54Lb = kg x 2.2Degrees F = [°C x 1.8] + 32Degrees C = [°F - 32]/1.8u' = 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 3.426lux = foot-candle x 10.76