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18. White Balance Check
Subject
White pattern standard picture frame
Filter CI4 for color temperature
Filter
correction
ND filter 1.0 and 0.3
Measurement Point
Video output terminal
Measuring Instrument
Vectorscope
Specified Value
7-12.AtoC
Checking method:
1) Check that the lens is not covered with either filter.
2)
Set data: 01 to page: 6, address: 00.
3) Set data: OF to page: 6, address: 01, and press the PAUSE but-
ton of the adjusting remote commander.
4) Check that the center of the white luminance point is within
the circle shown in Fig. 7-12. A.
5)
Set data: 00 to page: 6, address: 0 I, and press the PA USE but-
ton of the adjusting remote commander.
6)
Set data: 23 to page: 6, address: 01, and press the PAUSE but-
ton of the adjusting remote commander.
7) Place the C14 filter on the lens.
8) Check that the center of the white luminance point settles in
the circle shown in Fig. 7-12. B.
9) Remove the Cl4 filter, and place the ND filter 1.3 (1.0+0.3)
on the lens.
10) Check that the center of the white luminance point settles in
the circle shown in Fig. 7-12. C.
rrocessing after completing adjustments
1) Set data: OOto page: 6, address: 01, and press the PAUSE but-
ton of the adjusting remote commander.
2)
Set data: 00 to page: 6, address: 00, and press the PAUSE but-
ton.
7-20
2 mm
0.5mm
R-Y
2mm
/
'
~
,/
B-Y
Fig. 7-12. A
R-Y
....;...i..,,_
0.5 mm
Fig. 7-12. B
R-Y
B-Y
3mm
-+---..J,....L....
3
mm
0.5 mm
----i--
Fig. 7-12. C
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