ViewSonic VA1721wmb Service Manual page 24

A、First Power off, then press Switch 1 button along with press Power button will activate
the factory mode, then MCU will do AUTO LEVEL automatically. Meanwhile press
MENU the OSD screen will located at LEFT TOP OF PANEL.
4.) Bias adjustment :
Set the Contrast
Adjust the Brightness
5.) Gain adjustment :
Move cursor to "-F-" and press MENU key
A、Adjust 9300 color-temperature
(1)、Switch the CA-210 to RGB-Mode (with press "MODE" button )
(2)、Switch the MEM. channel to Channel 1 ( with up or down arrow on CA-210 )
(3)、The LCD-indicator on CA-210 will show x=0.283±0.03, y=0.298±0.03, Y≥160cd/m
(4)、Adjust the RED of color1 on factory window until CA-210 indicator reached the
value
(5)、Adjust the GREEN of color1 on factory window until CA-210 indicator reached the
value G=100
(6)、Adjust the BLUE of color1 on factory window until CA-210 indicator reached the
value B=100
(7)、Repeat above procedure ( item 4,5,6) until CA-210 RGB value meet the
tolerance =100±5
B、Adjust 7500 color-temperature
(1)、Switch the CA-210 to RGB-Mode (with press "MODE" button )
(2)、Switch the MEM .channel to Channel 1( with up or down arrow on CA-210 )
(3)、The LCD-indicator on CA-210 will show x = 0.299 ±0.03, y = 0.316 ±0.03, Y ≥
190cd/m
(4)、Adjust the RED of color3 on factory window until CA-210 indicator reached the
value R=100
(5)、Adjust the GREEN of color3 on factory window until CA-210 indicator reached the
value G=100
(6)、Adjust the BLUE of color3 on factory window until CA-210 indicator reached the
value B=100
(7)、Repeat above procedure ( item 4,5,6) until CA-210 RGB value meet the tolerance
=100±5
C、Adjust 6500 color-temperature
(1)、Switch the CA-210 to RGB-Mode (with press "MODE" button )
(2)、Switch the MEM .channel to Channel 1 ( with up or down arrow on CA-210 )
(3)、The LCD-indicator on CA-210 will show x=0.313±0.03, y=0.329±0.03, Y≥190 cd/m
ViewSonic Corporation
to 70
to 100.
R=100
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Confidential - Do Not Cop
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VA1721wmb