White Balance Check - Sony BRC-300 Service Manual

3-2-20. White Balance Check

Subject Clear chart
(Color reproduction adjustment frame)
Filter Color temperature correction filter C14
ND filter 1.0, 0.4 and 0.1
Measurement point Video terminal of AUDIO/VIDEO jack
(75 Z terminated)
Measuring instrument Vectorscope
Specification Refer to Fig. 3-2-3 and 3-2-4.
m
. Perform this adjustment after performing "3-2-19. Color
Reproduction Adjustment".
. The data of page: 0, address: 10 must be "00".
Control software setting
DIGITAL ZOOM: OFF
Checking procedures
a. Indoor white balance check
Order Page Address Data Procedure
1
2 6 01 0F
3
4 6 01 00
b. Outdoor white balance check
Order Page Address Data Procedure
1
2 6 01 3F
3
4
5 6 01 00
BRC-300/300P
BRU-300/300P
Check that the lens is not
covered with either filter.
Set the data, and press
PAUSE button.
Check that the center of the
white luminance point is within
the circle shown Fig. 3-2-3.
Set the data, and press
PAUSE button.
Place the filter C14 on the lens.
Set the data, and press
PAUSE button.
Check that the center of the
white luminance point is within
the circle shown Fig. 3-2-4.
Remove the filter C14.
Set the data, and press
PAUSE button.
3-2. BRC-300/300P Camera Block Electrical Alignment
c. Data check
Order Page Address Data Procedure
1
2 0 03 06
3 1
Four-digit display data
1 : XX : XX
Display data
Settings after adjustment
Order Page Address Data Procedure
1 6 01 00
2 0 03 00
3
2 mm
1 mm
0.5 mm
Place the ND filter 1.5 (1.0 + 0.1
+ 0.4) on the lens.
Set the data.
Check the display data that the
specifcations are satisfied.
Specification: 8000 to 8BC0
Set the data.
Set the data.
Remove the ND filter 1.5.
2 mm
R-Y
B-Y
Fig. 3-2-3.
R-Y
B-Y
3 mm
3 mm
Fig. 3-2-4.
3-31