Read Sony DSC-P72 (serv.man4) Service Manual online
6-22
DSC-P72
11. Auto White Balance 5800K Check
Check that the white balance standard data at 5800K are inputted
properly.
properly.
Mode
STILL (
)
Subject
Clear chart
(Standard picture frame)
(Standard picture frame)
Filter
Filter C14 for color temperature
correction
correction
Measurement Point
Data of page: 10, address: 08, 09, 0A,
0B, 59, 5B
0B, 59, 5B
Measuring Instrument
Data of page: 6F, address: 8C, 8E, B5
Specified value 1
R ratio = 2838 to 2C38
Specified value 2
B ratio = 5DA0 to 61A0
Specified value 3
R-Y data = 70 to 90
Specified value 4
B-Y data = 70 to 90
Specified value 5
R/G data = 10 to 40
Specified value 6
B/G data = 10 to 40
Specified value 7
00
Note1:
Before perform this adjustment, perform “Auto White Balance
5800K Standard Data Input”.
5800K Standard Data Input”.
Note2:
If the data of page: 60, address: 02 is “01”, select page: 60, address:
01, and write data: 00.
01, and write data: 00.
Switch setting:
ZOOM .................................................................... WIDE end
CAMERA setting (Menu setting) ................................ AUTO
CAMERA setting (Menu setting) ................................ AUTO
Adjusting method:
Order Page Address Data
Procedure
1
Place the C14 filter for color
temperature correction on the
lens.
temperature correction on the
lens.
2
Check that “1. Data Setting during
Camera System Adjustments” is
performed.
Camera System Adjustments” is
performed.
3
Check the picture frame.
If deviated, perform “4. Picture
Frame Setting”.
If deviated, perform “4. Picture
Frame Setting”.
4
00
01
01
Set the data.
5
6F
B5
FF
Write the data.
5800K standard data Check (1).
6
60
37
13
Write the data.
7
60
01
11
Write the data.
8
60
38
Read the data, and check it is “01”.
9
60
01
C3
Write the data.
10
Wait for 2 sec.
11
60
02
Read the data, and check it is “01”.
12
10
08
Read the data, and this data is
named D
named D
08
.
13
10
09
Read the data, and this data is
named D
named D
09
.
14
Calculate R ratio using the
following equation.
(Hexadecimal calculation.)
R ratio = D
following equation.
(Hexadecimal calculation.)
R ratio = D
08
×
100 + D
09
15
Check that R ratio satisfies the
specified value1.
specified value1.
16
10
0A
Read the data, and this data is
named D
named D
0A
.
Order Page Address Data
Procedure
17
10
0B
Read the data, and this data is
named D
named D
0B
.
18
Calculate B ratio using the
following equation.
(Hexadecimal calculation.)
B ratio = D
following equation.
(Hexadecimal calculation.)
B ratio = D
0A
×
100 + D
0B
19
Check that B ratio satisfies the
specified value 2.
specified value 2.
20
10
59
Read the data (R-Y data), and
check it satisfies the specified
value 3.
check it satisfies the specified
value 3.
21
10
5B
Read the data (B-Y data), and
check it satisfies the specified
value 4.
check it satisfies the specified
value 4.
22
60
01
00
Write the data.
5800K standard data Check (2).
23
6F
8C
Read the data (R/G data), and
check it satisfies the specified
value 5.
check it satisfies the specified
value 5.
24
6F
8E
Read the data (B/G data), and
check it satisfies the specified
value 6.
check it satisfies the specified
value 6.
25
6F
B5
Read the data, and check it
satisfies the specified value 7.
satisfies the specified value 7.
Processing after Completing Adjustments:
Order Page Address Data
Procedure
1
60
37
00
Write the data.
2
60
01
00
Write the data.
3
Perform next adjustments.
If finish the camera system
adjustments, release the data
setting.
(See “1. Data Setting during
Camera System Adjustments”.)
If finish the camera system
adjustments, release the data
setting.
(See “1. Data Setting during
Camera System Adjustments”.)
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