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5-1. Manual B/W balance adjustment
1). Operation instruction:
Press PROD button to enter into "B/W BALANCE" mode and the first
adjustable item "sub-brightness" will turn up then. The OSD display of the
B/W balance adjustment covers one line on the top to reserve the central
space for camera lighting.
Press POS+/POS- to turn pages to find adjusting options. If adjusting-use remote
control unit is employed, press a single button can jump directly to the items
to be adjusted.
Press VOL+ or VOL- button to adjust the selected item.
Repeat step b) and c) till a satisfactory result is reached. Press PROD button to
quit.
2). Table of adjustable items:
OSD
DISPLAY
S-BRI
R-BIA
G-BIA
B-BIA
R-DRV
G-DRV
B-DRV
C.B/W
3). During maintenance, one light line can be used to adjust black balance roughly.
In "B/W BALANCE" mode press MUTE button to enter into one light line
mode press MUTE button again will return to full screen mode. In light
line mode the picture status will be set to "FACTORY1" mode i.e., all the
output values on the picture menu are "0" When full screen returns, the
picture status will be set to "FACTORY2" mode, i.e., setting values of
brightness and contrast are "100" while the other settings in the picture
menu are "0".
In "LINE MODE", besides MUTE button, the following eight buttons on user's
remote control unit will work, with their functions changed as follows.
Other buttons will not work.
BUTTON
FUNCTION
BUTTON
CORRESPONDING LA76810
BUS ITEMS
Sub Brightness
Red Bias
Green Bias
Blue Bias
Red Drive
Green Drive
Blue Drive
Cross B/W
1
Sub brightness +
0
NAME
Sub Brightness
Red Bias
Green Bias
Blue Bias
Red Drive
Green Drive
Blue Drive
Internal signal
3
Red bias +
Green bias +
2
RANGE VARIABLE
0~127
0~255
0~255
0~255
0~127
0~15
0~127
0~3
5
7
Blue bias +
4
6
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