Sony DSC-U10 (serv.man4) Service Manual ▷ View online
DSC-U10
6-27
7.
V-COM Adjustment
Set the DC bias of the common electrode drive signal of LCD to
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
4F
Adjustment Address
82
Specified Value
The brightness difference
between the section-A and
section-B is minimum
between the section-A and
section-B is minimum
Note:
Perform “Bright Adjustment”, “Contrast Adjustment” and
“PSIG Adjustment” before this adjustment.
“PSIG Adjustment” before this adjustment.
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
42
[Set]
3
4F
82
Change the data so that
brightness of the
section A and section
B is equal.
brightness of the
section A and section
B is equal.
4
4F
82
[Write]
Subtract 3 from the
data, and write this
data.
data, and write this
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)
Fig. 6-1-9
A
A
A
A
B
B
B
B
DSC-U10
6-28
8.
White Balance Adjustment
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
If deviated, the LCD screen color cannot be reproduced.
Note:
Check the white balance only when replacing the follow-
ing parts. If necessary, adjust them.
1. LCD901 (LCD panel)
2. IC401
1. LCD901 (LCD panel)
2. IC401
8-1.
White Balance Adjustment (VR)
Mode
PLAY
Signal
Arbitrary
Measurement Point
Data of page: 50, address: 80, 81,
88 and 89 (2byte data) (Note 1)
88 and 89 (2byte data) (Note 1)
Adjustment Page
4F
Adjustment Address
86
Specified Value
VR = EB to F3
Note 1:
2byte data is upper 1byte data and lower 1byte data.
XX XX
Lower 1byte data
(Page: 50, address: 81 or 89)
Upper 1byte data
(Page: 50, address: 80 or 88)
(Page: 50, address: 81 or 89)
Upper 1byte data
(Page: 50, address: 80 or 88)
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
02
[Set]
3
4F
86
8C
[Write]
4
50
90
01
[Set]
5
50
90
00
[Set]
6
50
80
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
7
50
81
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
8
This 2byte data (Note
1) is named VR1.
1) is named VR1.
9
50
88
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
10
50
89
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
11
This 2byte data (Note
1) is named VR2.
1) is named VR2.
12
Calculate VR using
following equations.
(hexadecimal calcula-
tion)
following equations.
(hexadecimal calcula-
tion)
VR = VR1 – VR2
(VR: absolute value)
13
Check that the VR
satisfies the specified
value. (Note 2)
satisfies the specified
value. (Note 2)
Note 2:
When VR does not satisfy the specified value, select page:
4F, address: 86, and write the different data (refer to the
following table), then retry the procedure from 4 to 13.
4F, address: 86, and write the different data (refer to the
following table), then retry the procedure from 4 to 13.
VR is smaller than the specified value
Decrease the data
VR 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)
DSC-U10
6-29
8-2.
White Balance Adjustment (VB)
Mode
PLAY
Signal
Arbitrary
Measurement Point
Data of page: 50, address: 84, 85,
8C and 8D (2byte data) (Note 1)
8C and 8D (2byte data) (Note 1)
Adjustment Page
4F
Adjustment Address
87
Specified Value
VB = 112 to 11A
Note 1:
2byte data is upper 1byte data and lower 1byte data.
XX XX
Lower 1byte data
(Page: 50, address: 85 or 8D)
Upper 1byte data
(Page: 50, address: 84 or 8C)
(Page: 50, address: 85 or 8D)
Upper 1byte data
(Page: 50, address: 84 or 8C)
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
02
[Set]
3
4F
87
80
[Write]
4
50
90
01
[Set]
5
50
90
00
[Set]
6
50
84
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
7
50
85
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
8
This 2byte data (Note
1) is named VB1.
1) is named VB1.
9
50
8C
[Read]
Read the data
(Upper 1byte).
(Upper 1byte).
10
50
8D
[Read]
Read the data
(Lower 1byte).
(Lower 1byte).
11
This 2byte data (Note
1) is named VB2.
1) is named VB2.
12
Calculate VB using
following equations.
(hexadecimal calcula-
tion)
following equations.
(hexadecimal calcula-
tion)
VB = VB1 – VB2
(VB: absolute value)
13
Check that the VB
satisfies the specified
value. (Note 2)
satisfies the specified
value. (Note 2)
Note 2:
When VB does not satisfy the specified value, select page:
4F, address: 87, and write the different data (refer to the
following table), then retry the procedure from 4 to 13.
following table), then retry the procedure from 4 to 13.
VB is smaller than the specified value
Decrease the data
VB 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)
DSC-U10
6-30
COVER
COVER
6-2. SERVICE MODE
2-1.
APPLICATION FOR ADJUSTMENT (SEUS)
The application for adjustment (SEUS) is used to change the coef-
ficient for calculating the signal processing or EVR data. The SEUS
performs two-way communication between PC and set through
the USB terminal. The two-way communication result data can be
written to the nonvolatile memory.
ficient for calculating the signal processing or EVR data. The SEUS
performs two-way communication between PC and set through
the USB terminal. The two-way communication result data can be
written to the nonvolatile memory.
2-1-1.
Using Method of SEUS
1.
Connection
1) Connect the HASP key to the USB terminal of the PC.
2) Connect the PC and set with the USB cable.
3) Confirm that the set starts in the USB mode.
4) Start the SEUS on the PC.
5) Click
2) Connect the PC and set with the USB cable.
3) Confirm that the set starts in the USB mode.
4) Start the SEUS on the PC.
5) Click
[Connect]
on the SEUS screen. If the connection is nor-
mal, the SEUS screen will be as shown in Fig. 6-2-1, indicat-
ing the
ing the
“connected”
state.
Note:
The SEUS will go in
“disconnect" state, if the set is
turned off (for instance, by resetting the set). In such a
case, click
case, click
[Connect]
on the SEUS screen to restore
the
“connected”
state.
2.
Operation
• Page change
To change the page, click
[Page]
on the SEUS screen and enter
the page to be changed. The page is displayed in hexadecimal
notation.
notation.
• Address change
To change the address, click
[Address]
on the SEUS screen and
enter the address to be changed. The address is displayed in
hexadecimal notation.
hexadecimal notation.
• Data change
To change the data, click
[Set]
on the SEUS screen and enter
the data. The data is displayed in hexadecimal notation.
This operation does not write the data to the nonvolatile memory.
This operation does not write the data to the nonvolatile memory.
• Data writing
To write the data to the nonvolatile memory, click
[Write]
on
the SEUS screen and enter the data to be written.
• Data reading
The data displayed on the SEUS screen are the data values at
the time when the pages and addresses were set, and they are
not updated automatically. To check the data change, click
the time when the pages and addresses were set, and they are
not updated automatically. To check the data change, click
[Read]
on the SEUS screen and update the displayed data.
2-1-2.
Precaution on Use of SEUS
Wrong SEUS operation could clear correct adjustment data. To
prevent the data clear by mistake, it is recommended to save all
adjustment data by clicking
prevent the data clear by mistake, it is recommended to save all
adjustment data by clicking
[Page Edit]
on the SEUS screen be-
fore starting the adjustment.
Fig. 6-2-1
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