Acer P244W Service Manual page 30

1280x1024@60Hz 1688x1066
SXGA
1280x1024@75Hz 1688x1066
1280x720@60Hz 1650x750
VESA
1280x768@60Hz 1664x798
1280x768@60Hz 1696x805
1280x800@60Hz 1680x831
WXGA
1360x768@60Hz 1792x795
1440x900@60Hz 1904x931
WXGA+
1440x900@75Hz 1936x942
UXGA 1600X1200@60Hz 2160x1250
1680x1050@60Hz 2240*1089
WSXGA+
1680x1050@75Hz 2272*1099
UXGA 1600x1200@60Hz 2160x1250
1920x1080@60Hz 2080x1111
5.1.3 ADC calibration (Auto color balance adjustment)
~~Analog only, it is not required for DVI-D input source
1. Setup input timing ICL-605( 1280x1024@75Hz ), pattern 42(5-Mosaic pattern with white
color block) with Analog signals from Chroma video pattern generator. (it depends on Scaler
IC supplier's recommendation)
2. Enter factory mode (press "Empowering" & "Power" buttons at the same time to turn on
monitor).
3. Move cursor into "Burn-in Mode" tag and select "On" to enable burn-in mode.
4. Close OSD menu then press "Auto" button for auto color adjustment. (This procedure will
get optimal gain/offset(clamp) values)
5. Checking if the picture is ok, or reject this monitor and check its circuit board or wire/cable
connection.
5.1.4 Color
temperature
1. Setup input timing to any preset modes, pattern 41(full white color pattern) with Analog
signals from Chroma video pattern generator.
2. Enter factory mode (press "Empowering" & "Power" buttons at the same time to turn on
monitor).
3. Move cursor into "Burn-in Mode" tag and select "On" to enable burn-in mode.
4. Make sure ADC calibration (auto color balance adjustment) had already been done.
5. Measure color temperature by Minolta CA-110 (or equivalent equipment).
6. Adjust the color temperature ~~ Two methods can be used to adjust RED, GREEN, BLUE
value of each color temperature, C0/Cool, C1/User & C2/Warm to meet following spec
requirement, the 1
automatic adjustment, and the 2
Color temperature
(C0/cool on OSD)
Color temperature
63.981
79.976
44.955
47.776
60.289
49.702
47.712
55.935
70.635
75.000
65.290
82.306
75.000
66.587
adjustment:
st
method is by using external PC and IIC alignment protocol to do
nd
method is by manually and must be in factory mode.
X+-
Y+-
Luminance
X+-
Y+-
- 30 -
60.020 108.000
75.025 135.000
59.940 74.176
59.870 79.500
74.893 102.250
59.810 83.500
60.015 85.500
59.887 106.500
75.000 136.750
60.000 162.000
59.954 146.250
74.892 187
60.000 162.000
59.934 138.5
0.283+(-) 0.03
0.297+(-) 0.03
> 180 cd/m²