Sony FD Mavica MVC-FD75, Service Manual

Page: 65 / 90

5-14
8. 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.
Mode CAMERA
Subject Clear chart
(Color bar standard picture
frame)
Filter Filter C14 for color temperature
correction
Measurement Point
Check the DDS display on the
Measuring Instrument
LCD screen (Note 2)
Adjustment Page F
Adjustment Address D3, D4
Specified Value R ratio: 2B40 to 2BC0
B ratio: 5E40 to 5EC0
Note 1:
“Auto White Balance Standard Data Input” must be
already finished.
Note 2: The right 4 digits of the displayed data of the LCD screen.
Adjusting method:
Order Page Address Data Procedure
1 Place the C14 filter on the
lens.
2 0 01 01
3 F 11 02 Press PAUSE button.
4 2 10 58 Press PAUSE button.
5 Turn off the HOLD switch.
6 Wait for 2 seconds.
7 Turn on the HOLD switch.
8 E 11 0A Press PAUSE button.
9 2 01 3F Press PAUSE button.
10 0 03 04
11 F D3 Change the data so that
average value of the DDS
displayed data (Note 2)
satisfied the R ratio specified
value.
12 F D3 Press PAUSE button.
13 0 03 05
14 F D4 Change the data so that
average value of the DDS
displayed data (Note 2)
satisfied the B ratio specified
value.
15 F D4 Press PAUSE button.
Processing after Completing Adjustment:
Order Page Address Data Procedure
1 2 01 00 Press PAUSE button.
2 0 03 00
3 2 10 00 Press PAUSE button.
4 E 11 15 Press PAUSE button.
5 F 11 00 Press PAUSE button.
6 0 01 00
9. White Balance Check
Mode CAMERA
Subject Clear chart
(Color bar standard picture
frame)
Filter ND filter 1.0 and 0.3
Measurement Point Check the DDS display on the
LCD screen (Note 1, 2)
Specified Value When data: 0F is set to page: 2,
address: 01 (Note 1)
R-Y: 00 to 04 or FC to FF
B-Y: 00 to 04 or FC to FF
When data: 00 is set to page: 0,
address: 03 (Note 2)
0E10 or more
Note 1:
Right side 4 digits of data displayed at the LCD screen.
Note 2:
Data displayed at the lower right of the LCD screen.
Adjusting method:
Order Page Address Data Procedure
1 0 01 01
2 F 11 02 Press PAUSE button.
2 2 10 58 Press PAUSE button.
3 Turn off the HOLD switch.
4 Wait for 2 seconds.
5 Turn on the HOLD switch.
7 0 03 02
8 2 56 56 Press PAUSE button.
9 2 01 0F Press PAUSE button.
10 Check that the DDS
displayed data (Note 1) is in a
range of “00 to 04” or “FC to
FF”.
11 0 03 00
12 Check that the DDS
displayed data (Note 2) is
more than “0E10”.
13 Place the ND filter 1.3 (1.0 +
0.3) on the lens.
14 Check that the DDS
displayed data (Note 2) is less
than “0D00”.
Processing after Completing Adjustment:
Order Page Address Data Procedure
1 2 01 00 Press PAUSE button.
2 2 56 00 Press PAUSE button.
3 2 10 00 Press PAUSE button.
4 F 11 00 Press PAUSE button.
5 0 01 00
00 : XX : XX
Displayed data
00 : XX : XX
Displayed data
00 : XX : XX
R-Y
B-Y