Dell E173FP service manual White-Balance, Luminance adjustment

DELL E173FP Service Manual

9. 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 1 to 65000K colors, MEM. Channel 3 to 93000K colors, MEM. Channel 1 to 57000K (our 9300 parameter is x = 296 ±10, y = 311 ±10, Y = 180 ±10 cd/m2, 6500 parameter is x = 313 ±10, y = 329 ±10, Y = 180 ±10 cd/m2,and 5700 parameter is x = 328 ±10, y = 344 ±10, Y = 180 ±10 cd/m2)

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 (65000K) color-temperature

1Switch the chroma-7120 to RGB-mode(with press “MODE” button)

2Switch the MEM.channel to Channel 01 (with up or down arrow on chroma 7120)

3The LCD-indicator on chroma 7120 will show x = 313 ±10, y = 329 ±10, Y = 180 ±10 cd/m2

4In sRGB sub-menu, adjust C to 192, adjust L to 230 ;

5 Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100

6Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100

7Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100

8repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2

b. Adjust Color1 (93000K) color-temperature

9Switch the chroma-7120 to RGB-mode(with press “MODE” button)

10Switch the MEM.channel to Channel 03 ( with up or down arrow on chroma 7120 )

11The LCD-indicator on chroma 7120 will show x = 296 ±10, y = 311 ±10, Y = 180 ±10 cd/m2

12In Color1 sub-menu, adjust C to 192, adjust L to 230 ;

13 Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100

14Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100

15Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100

16repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2

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