Dell SP2009W Service Manual - Page 56

White balance, Luminance adjustment

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20" LCD Color Monitor 10.White balance, Luminance adjustment Dell SP2009Wc Approximately 2 Hours should be allowed for warm up before proceeding White-Balance adjustment. Before started adjust white balance, please setting the Chroma-7120 MEM. Channel 3 to 65000K colors, MEM. Channel 4 to 93000K colors, MEM. Channel 9 to 57000K (our 9300 parameter is x=283±28, y=297±28, Ymin = 180cd/m2, 6500 parameter is x =313±28, y=329±28, Ymin= 200cd/m2, and 5700 parameter is x = 328 ±28, y = 344 ±28, Ymin= 200cd/m2) How to setting MEM.channel you can reference to chroma 7120 user guide or simple use " SC" key and " NEXT" key to modify x, y, Y value and use "ID" key to modify the TEXT description Following is the procedure to do white-balance adjust Enter into the factory mode: Press MENU and AUTO-ADJUST button during press Power button will activate the factory mode, Gain adjustment: Move cursor to "-Factory Setting-" and press MENU key to enter this sub-menu. Move cursor to " Factory" and press MENU key. Move cursor to " Auto Level" and press MENU key to adjust Gain and Offset automatically; a. Adjust sRGB (65000K) color-temperature 1. Switch the chroma-7120 to RGB-mode (with press "MODE" button) 2. Switch the MEM.channel to Channel 3 (with up or down arrow on chroma 7120) 3.The LCD-indicator on chroma 7120 will show x = 313 ±28, y = 329 ±28, Ymin=200cd/m2 4. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100 5. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100 6. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100 7. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2 b. Adjust Color1 (93000K) color-temperature 8. Switch the chroma-7120 to RGB-mode (with press "MODE" button) 9. Switch the MEM.channel to Channel 4 (with up or down arrow on chroma 7120) 10. The LCD-indicator on chroma 7120 will show x = 283 ±28, y = 297 ±28, Ymin=180cd/m2 11. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100 12. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100 13. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100 14. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2 c. Adjust Color2 (57000K) color-temperature 15. Switch the chroma-7120 to RGB-mode (with press "MODE" button) 16. Switch the MEM.channel to Channel 9 (with up or down arrow on chroma 7120) 17. The LCD-indicator on chroma 7120 will show x = 328 ±28, y = 344 ±28, Ymin=200 cd/m2 18. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100 56

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20" LCD Color Monitor
Dell SP2009Wc
56
10.White balance, Luminance adjustment
Approximately 2 Hours should be allowed for warm up before proceeding White-Balance
adjustment.
Before started adjust white balance, please setting the Chroma-7120
MEM. Channel 3 to 6500
0
K
colors,
MEM.
Channel 4 to 9300
0
K
colors,
MEM. Channel 9 to 5700
0
K
(our 9300 parameter is x=283±28, y=297±28, Ymin =
180cd/m
2
, 6500 parameter is x =313±28, y=329±28, Ymin= 200cd/m
2
, and 5700 parameter is x = 328 ±28, y = 344
±28, Ymin= 200cd/m
2
)
How to setting MEM.channel you can reference to chroma 7120 user guide or simple use “
SC”
key and “
NEXT”
key to modify x, y, Y value and use
“ID”
key to modify the TEXT description Following is the procedure to do
white-balance adjust
Enter into the factory mode:
Press MENU and AUTO-ADJUST button during press Power button will activate the factory mode,
Gain adjustment:
Move cursor to “-Factory Setting-” and press MENU key to enter this sub-menu.
Move cursor to “ Factory” and press MENU key.
Move cursor to “ Auto Level” and press MENU key to adjust Gain and Offset automatically;
a. Adjust sRGB (6500
0
K) color-temperature
1. Switch the chroma-7120 to
RGB-mode
(with press “MODE” button)
2. Switch the MEM.channel to Channel 3 (with up or down arrow on chroma 7120)
3.The LCD-indicator on chroma 7120 will show x = 313 ±28, y = 329 ±28, Ymin=200cd/m
2
4. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100
5. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
6. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100
7. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
b. Adjust
Color1
(9300
0
K) color-temperature
8. Switch the chroma-7120 to
RGB-mode
(with press “MODE” button)
9. Switch the MEM.channel to Channel 4 (with up or down arrow on chroma 7120)
10. The LCD-indicator on chroma 7120 will show x = 283 ±28, y = 297 ±28, Ymin=180cd/m
2
11. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100
12. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
13. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100
14. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2
c. Adjust
Color2
(5700
0
K) color-temperature
15. Switch the chroma-7120 to
RGB-mode
(with press “MODE” button)
16. Switch the MEM.channel to Channel 9 (with up or down arrow on chroma 7120)
17. The LCD-indicator on chroma 7120 will show x = 328 ±28, y = 344 ±28, Ymin=
20
0 cd/m
2
18. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100