Acer AL1751 AL1751 Service Guide - Page 10

Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : Dark room Viewing distance : 40 cm for LCD performance, 20 cm for LCD failures Warm up time All specifications : ģ30 minutes Fully functional : 5 seconds Measuring equipment : Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test. Control settings Minolta CA100 photometer, or equivalent User brightness control : User contrast control : User red/white balance, Green/white balance and Blue/white balance control : Power input : Ambient temperature : Analog input mode : Set to Factory preset value (cut off raster) T Set to factory preset value, which allows that the brightest two of 32 linear distributed gray-scales (0j 700mv) can be distinguished. In the center (unless otherwise specified) 230V 5Ċ 20+5¥ 1280x1024, 60 Hz, all white 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 10