AOC 210S - 22 inch LCD Color Monitor - SMPS - Inverter and Scaler circuit diagrams - Service mode - Adjustments

Factory mode of AOC 210S

Press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.

715G2101-2 SMPS board for Lenovo D221 wide D222 - AOC 210S - 22" LCD Color Monitor.

Back-light inverter

Scaler

White- Balance, Luminance Adjustment

Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment.

Before started adjust white balance , set the Chroma-7120 MEM Channel 3 to Warm (6500K) color, MEM Channel 4 to Normal (7300K) color, MEM Channel 9 to Cool (9300K) color , and MEM Channel 10 to sRGB colo. 

Warm color parameter is 

x = 313 ±20, y = 329 ±20, 

Y=180cd/m2; 

Normal color parameter is 

x = 301 ±20, y = 317 ±20, Y=180cd/m2; 

Cool color parameter is 

x = 283 ±20, y = 297 ±20, Y=180cd/m2; 

RGB color parameter is 

x = 313 ±20, y = 329 ±20, Y= 180cd/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 .

Setting the color temp. you want

A. MEM.CHANNEL 3 (Warm color):

Warm color temp. parameter is x = 313 ±20, y = 329 ±20, Y=180cd/ m2

B. MEM.CHANNEL 4 (Normal color):

Normal color temp. parameter is x = 301 ±20, y = 317 ±20, Y=180cd/ m2

C. MEM.CHANNEL 9 (Cool color):

Cool color temp. parameter is x = 283 ±20, y = 297 ±20, Y=180cd/m2

D. MEM.CHANNEL 10 (sRGB color):

sRGB color temp. parameter is x = 313 ±20, y = 329 ±20, Y= 180cd/m2.

Into Factory mode of AOC 210S
Press the MENU button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.

Gain adjustment

Move cursor to “-F-” and press MENU key

A. Adjust Warm (6500K) 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 ±20, y = 329 ±20, Y=180cd/m2
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 reachedthe 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

B. Adjust Normal (7300K) 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 = 301 ±20, y = 317 ±20, Y=180cd/m2

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 reachedthe 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. Adjust Cool (9300K) color-temperature
1. Switch the Chroma-7120 to RGB-Mode (with press “MODE” button)
2. Switch the MEM. Channel to Channel 9 (with up or down arrow on chroma 7120)
3. The LCD-indicator on chroma 7120 will show x = 283 ±20, y = 297 ±20, Y=180cd/m2
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.

D. Adjust sRGB color-temperature

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

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

3. The LCD-indicator on chroma 7120 will show x = 313 ±20, y = 329 ±20, Y= 180cd/m2

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 reachedthe 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

E. Turn the Power-button off to quit from factory mode.