Auto White Balance Adjustment; White Balance Check - Sony FCB-IX47 Service Manual

Color video camera
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13. Auto White Balance Adjustment

Adjust to the proper auto white balance output data.
If it is not correct, auto white balance and color reproducibility will
be poor.
Subject
Clear chart
(Color bar standard picture frame)
Filter
Filter C14 for color temperature
correction
Measurement Point
DDS display of TV monitor
Measuring Instrument
(Note 2)
Adjustment Page
F
Adjustment Address
3A, 3B
Specified Value
R ratio: 2B40 to 2BC0
B ratio: 5E40 to 5EC0
Note 1: Perform "Auto White Balance Standard Data Input" be-
fore this adjustment.
Note 2: The right two digits of the display data at the right bottom
side of TV monitor is the object data.
00 00 XX
Adjusting method:
1) Place the C14 filter for color temperature correction on the lens.
2) Select page: 0, address: 01, and set data: 01.
3) Select page: D, address: 11, and set data: 02, and press the
PAUSE button of the adjusting remote commander.
4) Select page: 2, address: 01, and set data: 3F, and press the PAUSE
button of the adjusting remote commander.
5) Select page: 0, address: 03, and set data: 04.
6) Select page: F, address: 3A, and change the data, and adjust the
average value of the DDS display data(Note 2) to the R ratio
specified value.
7) Press the PAUSE button of the adjusting remote commander.
8) Select page: 0, address: 03, and set data: 05.
9) Select page: F, address: 3B, and change the data, and adjust the
average value of the DDS display data(Note 2) to the B ratio
specified value.
10) Press the PAUSE button of the adjusting remote commander.
Processing after Completing Adjustments
1) Select page: D, address: 11, and set data: 00, and press the
PAUSE button of the adjusting remote commander.
2) Select page: 0, address: 01, and set data: 00.
3) Select page: 2, address: 01, and set data: 00, and press the PAUSE
button of the adjusting remote commander.
4) Select page: 0, address: 03, and set data: 00.
2-22 (E)
n Object data

14. White Balance Check

Subject
Clear chart
(Color bar standard picture frame)
Filter
Filter C14 for color temperature
correction
ND filter 1.0 and 0.3
Pin 6 of CN301
Measurement Point
Measuring Instrument Vectorscope
Specified Value
Figure A to C
Checking method:
1) Check that the lens is not covered with either filter.
2) Select page: 2, address: 01, set data: 0F, and press the PAUSE
button of the adjusting remote commander.
3) Check that the center of the white luminance point is within the
circle shown FigureA.
4) Select page: 2, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
5) Select page: 2, address: 01, set data: 23, and press the PAUSE
button of the adjusting remote commander.
6) Place the C14 filter on the lens.
7) Check that the center of the white luminance point settles in the
circle shown Figure B.
8) Remove the C14 filter, and place the ND filter 1.3 (1.0 +0.3) on
the lens.
9) Check that the white luminance point stopped moving, and then
remove the ND filter 1.3.
10) Check that the center of the white luminance point settles within
the circle shown Figure C.
Processing after Completing Adjustments
1) Select page: 2, address: 01, and set data: 00, and press the PAUSE
button of the adjusting remote commander.
FCB-IX47/47P
FCB-IX470/470P

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