Acer AL707 Service Manual page 9

II. Gain adjustment :
a. adjust C2 color-temperature
Set the Contrast of OSD function to 45 and Adjust Brightness to chroma 7120 Y=240 ±5 cd/m
1.
2. Switch the chroma-7120 to RGB-mode (with press "MODE" button )
3. Switch the MEM.channel to Channel 01 ( with up or down arrow on chroma 7120 )
The lcd-indicator on chroma 7120 will show x = 302 ±10, y = 319 ±10, Y = 200 ±5 cd/m
4.
5. Adjust the Color(user)Mode: RED on OSD window, until chroma 7120 indicator reached the value
R=100
6. Adjust the Color(user)Mode: GREEN on OSD window, until chroma 7120 indicator reached the value
G=100
7. Adjust the Color(user)Mode: BLUE on OSD window, until chroma 7120 indicator reached the value
B=100
8. repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the torlence =100±2
9. switch the chroma-7120 to xyY mode With press "MODE" button
10. Press Color (7800) on OSD window to save the adjustment result
b. adjust C1 color-temperature
Set the Contrast of OSD function to 45 and Adjust Brightness to chroma 7120 Y=240 ±5 cd/m
1
2 Switch the chroma-7120 to RGB-mode (with press "MODE" button )
3 switch the MEM.channel to Channel 02 ( with up or down arrow on chroma 7120 )
The lcd-indicator on chroma 7120 will show x = 313 ±10, y = 329 ±10, Y = 200 ±5 cd/m
4
5 Adjust the Color(user)Mode: RED on OSD window, until chroma 7120 indicator reached the value
R=100
6 Adjust the Color(user)Mode: GREEN on OSD window, until chroma 7120 indicator reached the
value G=100
7 Adjust the Color(user)Mode: BLUE on OSD window, until chroma 7120 indicator reached the value
B=100
8 repeat above procedure ( item 5,6,7) until chroma 7120 RGB value meet the tolence =100±2
9 switch the chroma-7120 to xyY mode With press "MODE" button
10 Press Color(C1) on OSD window to save the adjustment result
Turn the POWER-button off to on to quit from factory mode ( in USER-mode, the OSD window location
was placed at middle of screen)
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