Read Sony DSC-U10 (serv.man4) Service Manual online
DSC-U10
6-25
5.
Contrast Adjustment
Set the level of the VIDEO signal for driving the LCD to the speci-
fied value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
fied value.
If deviated, the LCD screen image will be blackish or saturated
(whitish).
Mode
PLAY
Signal
Arbitrary
Measurement Point
Data of page: 50, address: 82, 83,
8A and 8B (2byte data) (Note 1)
8A and 8B (2byte data) (Note 1)
Adjustment Page
4F
Adjustment Address
88
Specified Value
VG = 91 to 99
Note 1:
2byte data is upper 1byte data and lower 1byte data.
XX XX
Lower 1byte data
(Page: 50, address: 83 or 8B)
Upper 1byte data
(Page: 50, address: 82 or 8A)
(Page: 50, address: 83 or 8B)
Upper 1byte data
(Page: 50, address: 82 or 8A)
Adjusting method:
Order Page Address
Data
Procedure
1
Perform “Data setting
during LCD system
adjustment”
(Refer to page 6-19)
during LCD system
adjustment”
(Refer to page 6-19)
2
40
89
01
[Set]
3
4F
88
5A
[Write]
4
50
90
01
[Set]
5
50
90
00
[Set]
6
50
82
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
7
50
83
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
8
This 2byte data (Note
1) is named VG1.
1) is named VG1.
9
50
8A
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
10
50
8B
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
11
This 2byte data (Note
1) is named VG2.
1) is named VG2.
12
Calculate VG using
following equations.
(hexadecimal calcula-
tion)
following equations.
(hexadecimal calcula-
tion)
VG = VG1 – VG2
(VG: absolute value)
13
Check that the VG
satisfies the specified
value. (Note 2)
satisfies the specified
value. (Note 2)
Note 2:
When VG does not satisfy the specified value, select page:
4F, address: 88, and write the different data (refer to the
following table), then retry the procedure from 4 to 13.
4F, address: 88, and write the different data (refer to the
following table), then retry the procedure from 4 to 13.
VG is smaller than the specified value
Decrease the data
VG is larger than the specified value
Increase the data
Processing after Completing Adjustment:
Order Page Address
Data
Procedure
1
40
89
00
[Set]
2
Release “Data setting
during LCD system
adjustment”
(Refer to page 6-19)
during LCD system
adjustment”
(Refer to page 6-19)
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