ViewSonic A91f+-1, Руководство по обслуживанию

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4. Video Alignment / function memory recall
﹒
4.1 Input 1024×1024 80KHz full black pattern
﹒
4.2 Set Brightness 100%
﹐
Contrast 0%
﹐
turn the G2 knob to obtain raster light O/P about 0.4 FL
﹒
4.3
Adjust R
﹑
G
﹑
B bias Control to meet following chromatically spec
﹒
9300
°
K
→
x = 0.283
±
0.003
﹐
y = 0.297
±
0.003
﹐
Y = 0.4
±
0.2 FL
﹒
6500
°
K
→
x = 0.313
±
0.003
﹐
y = 0.329
±
0.003
﹐
Y = 0.4
±
0.2 FL
﹒
5000
°
K
→
x = 0.346
±
0.003
﹐
y = 0.359
±
0.003
﹐
Y = 0.4
±
0.2 FL
﹒
4.4 Adjust Brightness to 50%
﹐
Contrast 100%
﹒
4.5 Apply 70mmx70mm green window pattern
﹐
adjust G-Driver to obtain green window pattern light O/P
about 33 FL (9300
°
K)
﹒
4.6 Apply white window pattern
﹐
adjust R-Driver
﹐
B-Driver to meet following chromatically spec
﹒
9300
°
K
→
x = 0.283
±
0.015
﹐
y = 0.297
±
0.015
﹐
Y = 40
±
2 FL
﹒
4.7 Apply 70mmx70mm green window pattern
﹐
adjust G-Driver to obtain green window pattern light O/P
about 32 FL (6500
°
K), (5000
°
K)
﹒
4.8 Apply white window pattern
﹐
adjust R-Driver
﹐
B-Driver to meet following chromatically spec
﹒
6500
°
K
→
x = 0.313
±
0.020
﹐
y = 0.329
±
0.020
﹐
Y = 40
±
2 FL
﹒
5000
°
K
→
x = 0.346
±
0.020
﹐
y = 0.359
±
0.020
﹐
Y = 40
±
2 FL
﹒
4.9 Apply full white pattern
﹒
4.10 Adjust VR4402 to obtain light O/P =33
±
1 FL
﹒
4.11 Apply full white pattern
﹐
adjust contrast from max to 10FL and check the chromatically meet following
spec
﹒
∣
x (at contrast
﹐
30) – x (at contrast
﹐
10)
∣≦
0.009
﹒
∣
y (at contrast
﹐
30) – y (at contrast
﹐
10)
∣≦
0.009
﹒
4.12 Functions “All mode recall”
﹒
Push button “ ” and power switch on
﹐
the picture should restore to that of factory mode
﹒
5. Focus Adjustment
﹒
5.1 Apply signal ALL “ME” pattern at 1280*1024 80K mode
﹒
5.2 Set Brightness 50%
﹐
Contrast 100%
﹒
5.3 Set focus control for best focus
﹒
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