Sony DCR-TRV130 - Digital8 Camcorder, Руководство по обслуживанию

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3. VCO Adjustment (PD-131 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
Mode VTR stop
Signal No signal
Measurement Point Pin
8
of CN5502 (XHD OUT)
Measuring Instrument Frequency counter
Adjustment Page D
Adjustment Address A2, A3
Specified Value f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)
Adjusting method:
Order Page Address Data Procedure
1 0 01 01 Set the data.
2 D A2 Change the data and set the VCO
frequency (f) to the specified value.
3 D A2 Press PAUSE button.
4 D A2 Read the data, and this data is
named D
A2
.
5 Convert D
A2
to decimal notation,
and obtain D
A2
’. (Note)
6 Calculate D
A3
’ using following
equations (Decimal calculation)
NTSC model
When D
A2
’ 232
D
A3
’=D
A2
’+23
When D
A2
’>232
D
A3
’=255
PAL model
When D
A2
’ 20
D
A3
’= D
A2
’–20
When D
A2
’< 20
D
A3
’= 0
7 Convert D
A3
’ to a hexadecimal
number, and obtain D
A3
. (Note)
8 D A3 D
A3
Set the data, and press PAUSE
button.
9 0 01 00 Set the data.
Note:
Refer to “Table 5-4-1. Hexadecimal-decimal Conversion Table”.
2. LCD Initial Data Input (2)
Mode VTR stop
Signal No signal
Adjustment Page D
Adjustment Address A0 to B1
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: D, and input the data in the following table.
Note:
To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.
3) Select page: 0, address: 01, and set data: 00.
Table 5-1-10.
Address
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
B0
B1
Remark
Fixed data
Fixed data
VCO adj.
Fixed data
V-COM adj.
RGB AMP adj.
Fixed data
COM AMP adj.
White balance adj.
White balance adj.
Contrast adj.
Fixed data
Fixed data
Fixed data
Fixed data
Fixed data
Fixed data
Fixed data
Data
78
A4
80
70
80
20
00
80
80
80
30
00
0A
0E
9F
1F
FC
FF