Acer B193R Service Manual

Acer B193R 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 (< 1 cd/m2)Viewing distance 40 cm for LCD performance, 20 cm for LCD failuresWarm up time ＞30 minutesAnalog Input signal 700 mVssControl temperature 6500° KBrightness control The value under user modeUser contrast controlSet to The value under user mode, which allows that the brightesttwo of 32 linear distributed gray-scales (0～ 700mv) can bedistinguished.Picture position and size Factory preset valueViewing angle 90 ° H and VAC Supply voltage 230V± 5％, 50±3HzAmbient temperature 20+5℃Display mode 1280x1024, 75Hz, all whitee-color mode Set to “User” modeMeasurement 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