Sony DCR-DVD301 (serv.man4) Service Manual ▷ View online
6-31
DCR-DVD301
2. White Balance Adjustment (VC-354 board)
Correct the white balance.
If deviated, the reproduction of the EVF screen may degenerate.
Correct the white balance.
If deviated, the reproduction of the EVF screen may degenerate.
Mode
MOVIE (
)
Subject
Arbitrary
Measurement Point
Check on EVF screen
Measuring Instrument
Adjustment Page
B
Adjustment Address
45, 46
Specified Value
The EVF screen should not be colored.
Note1: Check the white balance only when replacing the following parts.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC2201
1. LCD panel
2. Light induction plate
3. IC2201
Note2: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
B
45
8D
Set the data, and press PAUSE
button.
button.
3
B
46
78
Set the data, and press PAUSE
button.
button.
4
B
46
Check that the EVF screen is not
colored. If not colored, proceed to
step 10.
colored. If not colored, proceed to
step 10.
5
B
45
Change the data so that the EVF
screen is not colored.
screen is not colored.
6
B
45
Press PAUSE button.
7
B
46
Change the data so that the EVF
screen is not colored.
screen is not colored.
8
B
46
Press PAUSE button.
9
B
46
If the EVF screen is colored,
repeat steps 5 to 9.
repeat steps 5 to 9.
10
0
01
00
Set the data.
6-32
DCR-DVD301
1-5.
LCD SYSTEM ADJUSTMENT
Note1: When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
Note2: Before performing the adjustments, check the data of page: 0,
address: 10 is “00”. If not, set data: 00 to this address.
Switch setting:
LCD panel ............................................................................. Open
LCD panel ............................................................................. Open
1. LCD Automatic Adjustment (PD-241 board)
This adjustment does the following adjustment items automatically.
This adjustment does the following adjustment items automatically.
VCO adjustment
Contrast adjustment
Contrast adjustment
Mode
MOVIE (
)
Subject
Arbitrary
Adjustment Page
B
Adjustment Address
50, 51 (VCO adj.)
58 (Contrast adj.)
58 (Contrast adj.)
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
B
70
00
Set the data, and press PAUSE
button.
button.
3
3
01
5A
Set the data, and press PAUSE
button.
button.
4
3
02
Check that the data changes to
“00”.
“00”.
5
3
03
Check that the data is “00”.
(Note2)
(Note2)
6
B
50
Read the data, and this data is
named D
named D
50
.
7
Convert D
50
to decimal notation,
and obtain D
50
’. (Note3)
8
Calculate D
51
’ using following
equations (Decimal calculation)
When D
When D
50
’ 245
D
51
’ = D
50
’ + 10
When D
50
’ > 245
D
51
’ = 255
9
Convert D
51
’ to a hexadecimal
number, and obtain D
51
. (Note3)
10
B
51
D
51
Set the data, and press PAUSE
button.
button.
11
B
70
41
Set the data, and press PAUSE
button.
button.
12
0
01
00
Set the data.
Note2: If the data is “01”, adjustment has errors. Contents of the error is
written into page: 3, addresses: C6. See the following table.
Note3: Refer to “Table 6-4-1. Hexadecimal-decimal Conversion Table”.
Data of page: 3,
address: C6
address: C6
58
60
Contents of error
VCO adjustment error
Contrast adjustment error
6-33
DCR-DVD301
2. V COM Adjustment (PD-241 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.
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
MOVIE (
)
Subject
Arbitrary
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
B
Adjustment Address
52
Specified Value
The brightness difference between the
section A and section B is minimum.
section A and section B is minimum.
Note1: This adjustment should be carried out upon completion of the LCD
automatic adjustment.
Note2: The data of page: 0, address: 10 must be “00”.
Switch setting:
LCD BACKLIGHT .................................................................. ON
LCD BACKLIGHT .................................................................. ON
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
B
61
CD
Set the data, and press PAUSE
button.
button.
3
B
52
Change the data so that the
brightness of the section A and
that of the section B is equal.
brightness of the section A and
that of the section B is equal.
4
B
52
Subtract 5 from the data.
5
B
52
Press PAUSE button.
6
B
61
C5
Set the data, and press PAUSE
button.
button.
7
0
01
00
Set the data.
3. Transmissive Mode White Balance Adjustment
(PD-241 board)
Correct the white balance of the transmissive mode.
If deviated, the reproduction of the LCD screen may degenerate.
If deviated, the reproduction of the LCD screen may degenerate.
Mode
MOVIE (
)
Subject
Arbitrary
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
B
Adjustment Address
56, 57
Specified Value
The LCD screen should not be colored.
Note1: Check the white balance only when replacing the following parts.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC5701
1. LCD panel
2. Light induction plate
3. IC5701
Note2: The data of page: 0, address: 10 must be “00”.
Switch setting:
LCD BACKLIGHT .................................................................. ON
LCD BACKLIGHT .................................................................. ON
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
B
56
82
Set the data, and press PAUSE
button.
button.
3
B
57
7B
Set the data, and press PAUSE
button.
button.
4
B
57
Check that the LCD screen is not
colored. If not colored, proceed to
step 10.
colored. If not colored, proceed to
step 10.
5
B
56
Change the data so that the LCD
screen is not colored.
screen is not colored.
6
B
56
Press PAUSE button.
7
B
57
Change the data so that the LCD
screen is not colored.
screen is not colored.
8
B
57
Press PAUSE button.
9
B
57
If the LCD screen is colored,
repeat steps 5 to 9.
repeat steps 5 to 9.
10
0
01
00
Set the data.
Fig. 6-1-13.
A
A
A
A
B
B
B
B
6-34
DCR-DVD301
4. Reflective Mode White Balance Adjustment
(PD-241 board)
Correct the white balance of the reflective mode.
If deviated, the reproduction of the LCD screen may degenerate.
If deviated, the reproduction of the LCD screen may degenerate.
Mode
MOVIE (
)
Subject
Arbitrary
Adjustment Page
B
Adjustment Address
7B, 7C
Note1: The data of page: 0, address: 10 must be “00”.
Switch setting:
LCD BACKLIGHT ................................................................. OFF
LCD BACKLIGHT ................................................................. OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
3
0C
20
Set the data, and press PAUSE
button.
button.
3
3
22
0F
Set the data, and press PAUSE
button.
button.
4
3
01
66
Set the data, and press PAUSE
button.
button.
5
3
02
Check that the data changes to
“00”.
“00”.
6
3
03
Check that the data is “00”.
(Note2)
(Note2)
7
3
01
67
Set the data, and press PAUSE
button.
button.
8
3
02
Check that the data changes to
“00”.
“00”.
9
3
03
Check that the data is “00”.
(Note2)
(Note2)
10
3
0C
00
Set the data, and press PAUSE
button.
button.
11
3
22
00
Set the data, and press PAUSE
button.
button.
12
0
01
00
Set the data.
Note2: If the data is “01”, adjustment becomes time out.
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