![background image](http://html1.mh-extra.com/html/viewsonic/va502mb-1/va502mb-1_service-manual_1020920023.webp)
3.) Into factory mode of VA502mb
Turn on power, 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.
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
±
0.03, y =0.298
±
0.03,Y = 200
±
20 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
±
0.03, y = 0.329
±
0.03, Y = 200
±
20 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
(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
±
5
20
ViewSonic Corporation
Confidential - Do Not Copy
VA502mb-1
Содержание VA502mb-1
Страница 10: ...7 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
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Страница 16: ...PIN Descriptions 13 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 18: ...Block Diagram PIN Function 15 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 38: ...5 7 Packing Procedure 35 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 40: ...Picture 3 Picture4 Picture 5 Picture 6 Picture 7 37 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 41: ...Picture 8 Picture 9 Picture 10 Picture11 38 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 42: ...39 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 6 Troubleshooting Flow Chart...
Страница 43: ...7 Block Diagram 40 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 53: ...9 PCB Layout Diagrams MAIN BOARD 50 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 54: ...POWER BOARD 51 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 56: ...53 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 57: ...AUDIO BOARD 54 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 58: ...KEY BOARD 55 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 59: ...10 Exploded Diagram and Exploded Parts List 56 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Страница 61: ...58 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 Packing for Shipping...