Dell 1707FPc Service Manual download pdf (Page 59)

Dell 1707FPc

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

K colors, MEM.

Channel 4 to 9300

K colors, MEM. Channel 9 to 5700

K (our 9300 parameter is x=283±28, y=297±28, Y = 200

±20 cd/m

, 6500 parameter is x =313±28, y=329±28, Y = 230 ±20 cd/m

, and 5700 parameter is x = 328 ±28, y =

344 ±28, Y = 230 ±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 x, y, Y value and use “ID” key to modify the TEXT description Following is the procedure to do

white-balance adjust.

Enter into factory mode:

Press MENU

and up button at the same time, during press power button on will activate the factory mode,

then press MENU again, main MENU will be in the middle of the screen.

Gain adjustment:

Move to “Factory Reset” and press MENU key to enter this sub-menu.

Move to “ Factory” and press MENU key.

Move to “ Auto Color” and press MENU key to adjust Gain and Offset automatically;

a. Adjust sRGB (6500

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, Y = 230 ±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

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, Y = 200 ±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

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, Y = 230 ±20 cd/m

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Dell 1707FPc Service Manual Page 59

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