White-Balance, Luminance Adjustment - Lenovo LXM-L19BH Service Manual

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9 white-Balance, Luminance adjustment

Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment.

When the monitor is in ON status, press MENU button (hold on, do not release) and re-plug power cable, "Auto Level"

will appear in the screen and then MCU will do Auto Level automatically, the appearance of "Pass" means the finish of

this progress. Meanwhile press MENU, the OSD screen will locate at LEFT TOP OF PANEL.

1. Bias adjustment: Set Set the Contrast

2. Gain adjustment: Move cursor to "-F-" and press MENU key

A. Adjust 7800K 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 = 296 ±20, y = 311 ±20, Y = 180 ±10 cd/m

4. Adjust the RED of color1 on factory window until chroma 7120 indicator reached the value R=100

5. Adjust the GREEN of color1 on factory window until chroma 7120 indicator reached the value G=100

6. Adjust the BLUE of color1 on factory window until chroma 7120 indicator reached the value B=100

7. Repeat above procedure ( item 4,5,6) until chroma 7120 RGB value meet the tolerance =100±2

B. Adjust 6500K color-temperature

1. Switch the chroma-7120 to RGB-Mode (with press "MODE" button)

2. Switch the MEM. Channel to Channel 4(with up or down arrow on chroma 7120)

3. The LCD-indicator on chroma 7120 will show x = 313 ±20, y = 329 ±20, Y = 180 ±10 cd/m

4. Adjust the RED of color3 on factory window until chroma 7120 indicator reached the value R=100

5. Adjust the GREEN of color3 on factory window until chroma 7120 indicator reached the value G=100

6. Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached the value B=100

7. Repeat above procedure (item 4,5,6) until chroma 7120 RGB value meet the tolerance =100±2

C. Press reset key and Turn the Power-button "off to on" to quit from factory mode.

to 50, Adjust the Brightness

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