Sony CyberShot DSC-P72 Service Manual page 42

DSC-P72
11. Auto White Balance 5800K Check
Check that the white balance standard data at 5800K are inputted
properly.
Mode
Subject
Filter
Measurement Point
Measuring Instrument
Specified value 1
Specified value 2
Specified value 3
Specified value 4
Specified value 5
Specified value 6
Specified value 7
Note1: Before perform this adjustment, perform "Auto White Balance
5800K Standard Data Input".
Note2: If the data of page: 60, address: 02 is "01", select page: 60, address:
01, and write data: 00.
Switch setting:
ZOOM .................................................................... WIDE end
CAMERA setting (Menu setting) ................................ AUTO
Adjusting method:
Order Page Address Data
1
2
3
4 00 01
5 6F B5
6 60 37
7 60 01
8 60 38
9 60 01
10
11 60 02
12 10 08
13 10 09
14
15
16 10 0A
STILL ( )
Clear chart
(Standard picture frame)
Filter C14 for color temperature
correction
Data of page: 10, address: 08, 09, 0A,
0B, 59, 5B
Data of page: 6F, address: 8C, 8E, B5
R ratio = 2838 to 2C38
B ratio = 5DA0 to 61A0
R-Y data = 70 to 90
B-Y data = 70 to 90
R/G data = 10 to 40
B/G data = 10 to 40
00
Procedure
Place the C14 filter for color
temperature correction on the
lens.
Check that "1. Data Setting during
Camera System Adjustments" is
performed.
Check the picture frame.
If deviated, perform "4. Picture
Frame Setting".
01 Set the data.
FF Write the data.
5800K standard data Check (1).
13 Write the data.
11 Write the data.
Read the data, and check it is "01".
C3 Write the data.
Wait for 2 sec.
Read the data, and check it is "01".
Read the data, and this data is
named D .
08
Read the data, and this data is
named D .
09
Calculate R ratio using the
following equation.
(Hexadecimal calculation.)
× 100 + D
R ratio = D
08 09
Check that R ratio satisfies the
specified value1.
Read the data, and this data is
named D .
0A
Order Page Address Data
17 10 0B
18
19
20 10 59
21 10 5B
22 60 01
23 6F 8C
24 6F 8E
25 6F B5
Processing after Completing Adjustments:
Order Page Address Data
1 60 37
2 60 01
3
6-22
Procedure
Read the data, and this data is
named D .
0B
Calculate B ratio using the
following equation.
(Hexadecimal calculation.)
× 100 + D
B ratio = D
0A
Check that B ratio satisfies the
specified value 2.
Read the data (R-Y data), and
check it satisfies the specified
value 3.
Read the data (B-Y data), and
check it satisfies the specified
value 4.
00 Write the data.
5800K standard data Check (2).
Read the data (R/G data), and
check it satisfies the specified
value 5.
Read the data (B/G data), and
check it satisfies the specified
value 6.
Read the data, and check it
satisfies the specified value 7.
Procedure
00 Write the data.
00 Write the data.
Perform next adjustments.
If finish the camera system
adjustments, release the data
setting.
(See "1. Data Setting during
Camera System Adjustments".)
0B