Read Sony DCR-PC53E / DCR-PC55 / DCR-PC55E (serv.man4) Service Manual online
6-34
DCR-PC53E/PC55/PC55E
2. V COM Adjustment (PD-239 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
CAMERA-TAPE
Subject
Arbitrary
Measurement Point
Check on LCD display
Measuring Instrument
Adjustment Page
C
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
C
61
CD
Set the data, and press PAUSE
button.
button.
3
C
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
C
52
Add 2 to the data.
5
C
52
Press PAUSE button.
6
C
61
C5
Set the data, and press PAUSE
button.
button.
7
0
01
00
Set the data.
3. Transmissive Mode White Balance Adjustment
(PD-239 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
CAMERA-TAPE
Subject
Arbitrary
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
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. IC7501
1. LCD panel
2. Light induction plate
3. IC7501
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
C
56
7D
Set the data, and press PAUSE
button.
button.
3
C
57
73
Set the data, and press PAUSE
button.
button.
4
C
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
C
56
Change the data so that the LCD
screen is not colored.
screen is not colored.
6
C
56
Press PAUSE button.
7
C
57
Change the data so that the LCD
screen is not colored.
screen is not colored.
8
C
57
Press PAUSE button.
9
C
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. 6-1-15.
A
A
A
A
B
B
B
B
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