Sony DCR-TRV40, Руководство по обслуживанию

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5-37
DCR-TRV40/TRV40E/TRV50/TRV50E
1-4. COLOR ELECTRONIC VIEWFINDER
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:
As the PANEL CLOSE switch is attached to the cabinet (R), this
cabinet must be attached when performing adjustments.
If you perform the adjustments with cabinet (R) removed, set the
following data.
1) Select page: 3, address: C4, and set data: 67.
2) Select page: 3, address: C5, and set data: 01.
Reset the data after completing adjustment.
1) Select page: 3, address: C4, and set data: 00.
2) Select page: 3, address: C5, and set data: 00.
Note4: NTSC model: DCR-TRV40/TRV50
PAL model: DCR-TRV40E/TRV50E
[Adjusting connector]
Most of the measuring points for adjusting the viewfinder system
are concentrated in CN1012 of VC-283 board.
Connect the Measuring Instruments via the CPC-7 jig (J-6082-382-
A).
The following table shows the Pin No. and signal name of CN1012.
Table. 5-1-9.
Pin No.
1
2
3
4
5
6
7
8
Signal Name
N. C.
RF MON
RF IN/LANC JACK IN
SWP
PANEL COM
GND
H START
GND
Pin No.
9
10
11
12
13
14
15
16
Signal Name
PANEL VG
GND
EVF VCO
GND
EVF VG
EXT DA
LANC SIG
N. C.
1. VCO Adjustment (VC-283 board)
Set the VCO free-run frequency. If deviated, the EVF screen will be
blurred.
Mode Camera
Subject Arbitrary
Measurement Point Pin
qa
of CN1012 (EVF VCO)
Measuring Instrument Frequency counter
Adjustment Page C
Adjustment Address 51, 52
Specified Value f = 15734
±
30Hz (NTSC)
f = 15625
±
30Hz (PAL)
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 51 Change the data and set the
VCO frequency (f) to the
specified value.
3 C 51 Press PAUSE button.
4 C 51 Read the data, and this data is
named D
51
.
5 Convert D
51
to decimal notation,
and obtain D
51
'. (Note2)
6 Calculate D
52
' using following
equations (Decimal calculation)
[NTSC model]
When D
51
' 231
D
52
'=D
51
'+24
When D
51
'>231
D
52
'=255
[PAL model]
When D
51
' 24
D
52
'=D
51
'-24
When D
51
'<24
D
52
'=0
7 Convert D
52
' to a hexadecimal
number, and obtain D
52
. (Note2)
8 C 52 D
52
Set the data, and press PAUSE
button.
9 0 01 00 Set the data.
Note2: Refer to “Table 5-4-1. Hexadecimal-decimal Conversion Table”.
Remove the CPC lid.
CN1012
16
1
Fig. 5-1-16.