White Balance Adjustment - Dell E153FPc Service Manual

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
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Channel 4 to 9300 K colors, MEM. Channel 9 to 5700
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±20 cd/m , 6500 parameter is x = 313 ±28, y = 329 ±28, Y = 180 ±20 cd/m
344 ±28, Y = 180 ±20 cd/m
How to setting MEM.channel you can reference to chroma 7120 user guide or simple use " SC" key and " NEXT" key
to modify xyY value and use "ID" key to modify the TEXT description Following is the procedure to do white-balance
adjust
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
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, Y = 180 ±20 cd/m
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
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, Y = 175 ±20 cd/m
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
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, Y = 180 ±20cd/m
18. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100
19. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100
20. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100
21. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance 100±2
22. Move cursor to " Exit/Save" sub-menu and press MENU key to save adjust value and exit.
Turn the POWER-button off to on to quit from factory mode.
Max Brightness measurement:
a. Switch to the full white pattern, in user mode main menu:
1. Set <Color Settings> Red, Green, and Blue to the max.
2. Set <Brightness> Brightness, Contrast to the max.
b. The Minimum brightness is 200cd/m
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)
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K) color-temperature
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K) color-temperature
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K) color-temperature
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±20
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K (our 9300 parameter is x = 283 ±28, y = 297 ±28, Y = 175
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, and 5700 parameter is x = 328 ±28, y =
42
Dell E153FPc
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K colors, MEM.
2
2
2