Acer AC901 Manual page 14

19 -inch crt monitor
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5-2 Alignment Procedures
5-2-1 High Voltage Adjustment
CONDITION
Display image : Crosshatch pattern
5-2-2 Screen and White Balance Adjustment
CONDITION
Press
and
buttons simultaneously when switching the power " On" .
1
2
Display image : No video
PROCEDURE
1
Raster color setting
1-a
Adjust HV icon to set high voltage = 26KV.
1-b
Adjust G2 icon to set G2 at 600 ± 5V
1-c
Set Brightness icon maximum to 40%
1-d
Select OSD icon to R.G.B. cutoff
1-e
Set G gun cutoff to 0.5 ± 0.15 FL
1-f
Adjust R/B cutoff to get x=283 ± 5, y=297 ± 5, Y=0.6 ± 0.2 FL
1-g
Set Brightness to cutoff , get Y=0.01 ~ 0.03 FL
1-h
Set Brightness to minimum.
CONDITION
Display image : 50 mm x 50 mm white block pattern
PROCEDURE
0
2
6500
K color temperature setting
2-a
Set Brightness to cutoff and Contrast to 75 Value
2-b
Move cursor on OSD to choose color temperature icon.
2-c
Press
key to G gain then adjust G gain = 70 value, then adjust B, R to x=313± 5, y=329± 5.
2
2-d
Check x=313± 5, y=329± 5.
0
3
9300
K color temperature setting
3-a
Move cursor on OSD to choose color temperature icon.
3-b. Press
key to G gain then adjust G gain = 75 value, then adjust B, R to x=283± 5, y=297± 5.
2
3-c
Adjust Contrast max. to set Y=38± 2FL
3-d
Check x=283± 5, y=297± 5.
3-e
Adjust Contrast min. to set Y=1.0FL.
4
Full white ABL setting

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