Auto White Balance Adjustment; White Balance Check - Sony DCR-TRV7 Service Manual

14. 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.
Clear chart
Subject
(Color bar standard picture frame)
Filter C14 for color temperature
Filter
correction
Measurement Point DDS display of EVF, LCD or TV monitor
Measuring Instrument (Note 1)
Adjustment Page F
Adjustment Address 34, 35
R ratio: 2C40 to 2CC0
Specified Value
B ratio: 6040 to 60C0
Note 1: Perform "Auto White Balance Standard Data Input" before
this adjustment.
Note 2: The right four digits of the display data at the right bottom
side of the EVF, LCD and the TV monitor is the object
data.
CA 00 XXXX
>
Adjusting method:
1) Place the C14 filter for color temperature correction on the lens.
2) Set data: 01 to page: 0, address: 01.
3) Set data: 02 to page: D, address: 11, and press the PAUSE button
of the adjusting remote commander.
4) Set data: 01 to page: 6, address: 00.
5) Set data: 3F to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
6) Set data: 04 to page: 6, address: 04.
7) Change the data of page: F, address: 34, and adjust the average
value of the DDS display data (the display data at the bottom
right of the LCD, EVF or the TV monitor) to the R ratio specified
value.
8) Press the PAUSE button of the adjusting remote commander.
9) Set data: 05 to page: 6, address: 04.
10) Change the data of page: F, address: 35, and adjust the average
value of the DDS display data to the B ratio specified value.
11) Press the PAUSE button of the adjusting remote commander.
Processing after Completing Adjustments
1) Set data: 00 to page: D, address: 11, and press the PAUSE button
of the adjusting remote commander.
2) Set data: 00 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
3) Set data: 00 to page: 6, address: 04.
4) Set data: 00 to page: 6, address: 00.
5) Set data: 00 to page: 1, address: 00.
Object data

15. White Balance Check

Subject
Filter
Measurement Point
Measuring Instrument
Specified Value
Checking method:
1) Check that the lens is not covered with either filter.
2) Set data: 0F to page: 6, address: 01, 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 in Fig. 5-1-11.A.
4) Set data: 00 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
5) Set data: 23 to page: 6, address: 01, 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 in Fig. 5-1-11. 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 in the
circle shown in Fig. 5-1-11. C.
Processing after Completing Adjustments
1) Set data: 00 to page: 6, address: 01, and press the PAUSE button
of the adjusting remote commander.
5–18
Clear chart
(Color bar standard picture frame)
Filter C14 for color temperature
correction
ND filter 1.0 and 0.3
AUDIO VIDEO OUT terminal
Vectorscope
Fig. 5-1-11. A to C