![background image](http://html1.mh-extra.com/html/viewsonic/va712-2/va712-2_service-manual_1020961030.webp)
ViewSonic Corporation
Confidential - Do Not Copy
VA712-2_ VA712b-2
27
E
、
MEM.CHANNEL13 ( SRGB color):
SRGB color temp. parameter is Wx = 0.313
±
0.02;Wy = 0.329
±
0.02;
Y > 220 cd/m
2,
3.)Into factory mode of VA712b-2
A
、
First Power off, then press Switch 2 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
to 70
Adjust the
Brightness
to 100
.
5.)Gain adjustment :
Move cursor to “-F-” and press MENU key
A
、
Adjust 9300 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 = 0.283
±
0.02, y =0.298
±
0.02, Y >
250 cd/m
2
(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
±
5
B
、
Adjust 6500 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 = 0.313
±
0.02, y = 0.329
±
0.02, Y>260
cd/m
2
(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
Summary of Contents for VA712-2
Page 28: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 25...
Page 44: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 41...
Page 63: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 60 9 Block Diagram...
Page 74: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 71 11 5 POWER PCB TOP VIEW...
Page 75: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 72 11 6 POWER PCB BUTTON VIEW...