Acer AT4250B series, Service Manual

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Set contrast and brightness at max.
Cold: 14000 degree K(x=263,y=273) on x and y value.
Standard: 9300 degree K(x=283,y=297) on x and y value.
Warm: 6500 degree K(x=312,y=329) on x and y value.
Display Area, Phase, Center and Tilt
Display Area: 27 inches diagonal
H-Phase: A-B Less than 1.5mm
V-Center: C-D Less than 1.5mm
Tilt: E-F Less than 1.5mm,but non-active area must be larger than zero for four sides.
A
E
D
C
F
B
Max. Brightness
The brightness should exceed 350 Cd/m
2
while set both of contrast and brightness to max. and color
temperature of Standard is selected. ( Typical value would be 400 Cd/m
2
).
Power Supply Electrical Specifications
The power supply for this product is an internal converter, with a non-replaceable fuse internally.
This converter shall be well designed to meet CE mark requirement.
Input Voltage and Frequency Range
The operating range of line voltage shall be:
AC 100 volts to 240 volts, 50 Hz to 60 Hz
Power comsuption shall be under 291 Watts
Variation of the line voltage throughout the applicable operating range shall not result in any visible image
anomalies such as image movement, changes in light output, nor changes in image stability or quality.
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