DSC-T1 (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 34

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DSC-T1
5. Contrast Adjustment (SY-95 board)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode
PLAY ( 
 )
Subject
Arbitrary
Measurement Point
Data of page: 80, address: 02
Measuring Instrument
Adjustment Page
8F
Adjustment Address
2C
Specified Value
01
Note1:
A memory stick DUO must be inserted.
Adjusting method:
Order Page Address Data
Procedure
1
Check that “1. Data Setting during
LCD System Adjustments” is
performed.
2
8F
39
28
Set the data.
3
80
00
00
Set the data.
4
80
01
00
Set the data.
5
80
00
05
Set the data.
6
80
02
Read the data, and check it is “01”.
(Note2)
7
If finish the LCD system
adjustments, release the data
setting.
(See “1. Data Setting during
LCD System Adjustments”.)
Note2:
If the data is other than “01”, adjustment has errors. See the
following table.
Data of page: 80,
Contents of adjustment error
address: 02
01
Normally finished
10
Reached an upper limit
20
Reached a lower limit
30
Time out
40
Out of adjustment range
50
Adjustment is impossible
6. V COM Adjustment (SY-95 board)
Set the DC bias of the common electrode drive signal of LCD to the
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
Mode
PLAY ( 
 )
Subject
Arbitrary
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
8F
Adjustment Address
24
Specified Value
The brightness difference between the
section A and section B is minimum.
Note:
A memory stick DUO must be inserted.
Adjusting method:
Order Page Address Data
Procedure
1
Check that “1. Data Setting during
LCD System Adjustments” is
performed.
2
80
71
76
Set the data.
3
8F
41
23
Set the data.
4
8F
24
Change the data so that the
brightness of the section A and
that of the section B is equal.
5
80
71
FF
Set the data.
6
8F
41
21
Set the data.
7
Save the data.
8
Wait for 2 sec.
9
If finish the LCD system
adjustments, release the data
setting.
(See “1. Data Setting during
LCD System Adjustments”.)
Fig. 6-1-16.
A
A
A
A
B
B
B
B
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