DSC-P10, DSC-P12 (serv.man4) - Sony Digital Camera Service Manual (repair manual). Page 32

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DSC-P10/P12
6-30
Fig. 6-1-15
A
A
A
A
B
B
B
B
6.
V-COM Adjustment (SW-386 Board)
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.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Check on the LCD screen
Measuring Instrument
Adjustment Page
4F
Adjustment Address
84
Specified value
The brightness difference between
the section-A and section-B is
minimum
Adjusting method:
Order Page Address
Data
Procedure
1
00
01
01 
[Set]
2
4F
02
03 
[Set]
3
40
F1
82 
[Set]
4
4F
84
Change the data so that
brightness of the section
A and section B is equal.
5
4F
84
[Write]
Subtract 6 from the data,
and write this data.
Processing after Completing Adjustments:
Order Page Address
Data
Procedure
1
40
F1
00 
[Set]
2
4F
02
[Read]
3
00
01
00 
[Set]
7.
White Balance Adjustment (SW-386 Board)
Correct the white balance.
If deviated, the LCD screen color cannot be reproduced.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Check on the LCD screen
Measuring Instrument
Adjustment Page
4F
Adjustment Address
88,89
Specified value
LCD screen must not be colored
Note 1:
Check the white balance only when replacing the
following parts. If necessary, adjust them.
1. LCD901 PANEL UNIT
2. IC101
Adjusting method:
Order Page Address
Data
Procedure
1
00
01
01 
[Set]
2
4F
02
03 
[Set]
3
40
F1
03 
[Set]
4
4F
88
8C 
[Set]
Set the data.
(Initial value)
5
4F
89
6C 
[Set]
Set the data.
(Initial value)
6
Check that the LCD
screen is not colored. If
not colored, proceed to
“Processing after
Completing Adjust-
ments”.
7
4F
88
[Write]
Change the data so that
the LCD screen is not
89
colored, and write this
data.
Processing after Completing Adjustments:
Order Page Address
Data
Procedure
1
40
F1
00 
[Set]
2
4F
02
[Read]
3
00
01
00 
[Set]
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