Read Sony DCR-PC53E / DCR-PC55 / DCR-PC55E (serv.man4) Service Manual online
6-33
DCR-PC53E/PC55/PC55E
1-4.
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.
Note3: NTSC model : DCR-PC55
PAL model
: DCR-PC53E/PC55E
Switch setting:
LCD panel ............................................................................. Open
LCD panel ............................................................................. Open
1. LCD Automatic Adjustment (PD-239 board)
This adjustment does the following adjustment items automatically.
This adjustment does the following adjustment items automatically.
VCO adjustment
Contrast adjustment
Contrast adjustment
Mode
CAMERA-TAPE
Subject
Arbitrary
Adjustment Page
C
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
C
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
C
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)
[NTSC model]
When D
[NTSC model]
When D
50
’ 245
D
51
’ = D
50
’ + 10
When D
50
’ > 245
D
51
’ = 255
[PAL model]
When D
When D
50
’ 10
D
51
’ = D
50
’ – 10
When D
50
’ < 10
D
51
’ = 0
9
Convert D
51
’ to a hexadecimal
number, and obtain D
51
. (Note3)
10
C
51
D
51
Set the data, and press PAUSE
button.
button.
11
C
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.
Data of page: 3,
address: C6
address: C6
58
60
Contents of error
VCO adjustment error
Contrast adjustment error
Note3: Refer to “Table 6-4-1. Hexadecimal-decimal Conversion Table”.
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