Sony DCR-TRV738E / DCR-TRV740 / DCR-TRV740E / DCR-TRV840 Service Manual ▷ View online
5-28
DCR-TRV738E/TRV740/TRV740E/TRV840
11. White Balance Check
Subject
Clear chart
(Color reproduction adjustment frame)
(Color reproduction adjustment frame)
Filter
Filter C14 for color temperature
correction
ND filter 1.0 and 0.4 and 0.1
correction
ND filter 1.0 and 0.4 and 0.1
Measurement Point
Video output terminal
Measuring Instrument
Vectorscope
Specified Value
Fig. 5-1-12. A to B
Note:
The data of page: 0, address: 10 must be “00”.
Switch setting:
1)
1)
POWER .................................................................. CAMERA
2)
NIGHT SHOT .................................................................. OFF
3)
DIGITAL ZOOM (Menu display) ................................... OFF
4)
STEADY SHOT (Menu display) ..................................... OFF
Checking method:
Order Page Address Data
Procedure
Indoor white balance check
1
Check that the lens is not covered
with either filter.
with either filter.
2
6
01
0F
Set the data, and press PAUSE
button.
button.
3
Check that the center of the white
luminance point is within the
circle shown Fig. 5-1-12. A.
luminance point is within the
circle shown Fig. 5-1-12. A.
4
6
01
00
Set the data, and press PAUSE
button.
button.
Outdoor white balance check
5
Place the C14 filter on the lens.
6
6
01
3F
Set the data, and press PAUSE
button.
button.
7
Check that the center of the white
luminance point is within the
circle shown Fig. 5-1-12. B.
luminance point is within the
circle shown Fig. 5-1-12. B.
8
Remove the C14 filter.
LV data check
9
Place the ND filter 1.5 (1.0 + 0.1
+ 0.4) on the lens.
+ 0.4) on the lens.
10
6
01
00
Set the data, and press PAUSE
button.
button.
11
0
03
06
Set the data.
12
1
Check that the display data (Note)
satisfies the specified value.
Specified value: 8000 to 8BC0
satisfies the specified value.
Specified value: 8000 to 8BC0
Note:
Displayed data of the adjustment remote commander.
1 : XX : XX
Display data
Processing after Completing Adjustments
Order Page Address Data
Procedure
1
6
01
00
Set the data, and press PAUSE
button.
button.
2
0
03
00
Set the data.
R-Y
2mm
B-Y
2mm
Fig. 5-1-12. (A)
Fig. 5-1-12. (B)
R-Y
B-Y
1mm
0.5mm
3mm
3mm
5-29
DCR-TRV738E/TRV740/TRV740E/TRV840
12. Steady Shot Check
Precautions on the Parts Replacement
There are two types of repair parts.
There are two types of repair parts.
Type A: ENC03JA
Type B: ENC03JB
Type B: ENC03JB
Replace the broken sensor with a same type sensor. If replace with
other type parts, the image will vibrate up and down or left and
right during hand-shake correction operations.
other type parts, the image will vibrate up and down or left and
right during hand-shake correction operations.
Precautions on Angular Velocity Sensor
The sensor incorporates a precision oscillator. Handle it with care
as if it dropped, the balance of the oscillator will be disrupted and
operations will not be performed properly.
The sensor incorporates a precision oscillator. Handle it with care
as if it dropped, the balance of the oscillator will be disrupted and
operations will not be performed properly.
Subject
Arbitrary
Measurement Point
Display data of page 1 (Note1)
Measuring Instrument
Adjustment remote commander
Specified Value
2B00 to 4B00
Note1:
Displayed data of the adjustment remote commander.
1 : XX : XX
Display data
Note2:
The data of page: 0, address: 10 must be “00”.
Switch setting:
1)
1)
STEADY SHOT (Menu display) ...................................... ON
2)
ZOOM .................................................................... TELE end
Adjusting method:
Order Page Address Data
Procedure
Pitch sensor check
(SI-032 board SE301)
1
0
03
11
Set the data.
2
1
Check that the display data
(Note1) satisfies the specified
value.
Specified value: 2B00 to 4B00
(Note1) satisfies the specified
value.
Specified value: 2B00 to 4B00
Yaw sensor check
(SI-032 board SE302)
3
0
03
12
Set the data.
4
1
Check that the display data
(Note1) satisfies the specified
value.
Specified value: 2B00 to 4B00
(Note1) satisfies the specified
value.
Specified value: 2B00 to 4B00
Processing after Completing Adjustments
Order Page Address Data
Procedure
1
0
03
00
Set the data.
2
Move the camcorder, and check
that the steady shot operations
have been performed normally.
that the steady shot operations
have been performed normally.
5-30
DCR-TRV738E/TRV740/TRV740E/TRV840
1-4.
ELECTRONIC VIEWFINDER SYSTEM
ADJUSTMENT
ADJUSTMENT
Note1:
When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
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.
address: 10 is “00”. If not, set data: 00 to this address.
Note3:
Switch setting:
LCD panel ........................................................................... Close
LCD panel ........................................................................... Close
Note4:
NTSC model: DCR-TRV740/TRV840
PAL model: DCR-TRV738E/TRV740E
PAL model: DCR-TRV738E/TRV740E
[Adjusting connector]
Most of the measuring points for adjusting the viewfinder system
are concentrated in CN1108 of VC-278 board.
Connect the Measuring Instruments via the CPC-13 jig (J-6082-
443-A).
The following table shows the Pin No. and signal name of CN1108.
are concentrated in CN1108 of VC-278 board.
Connect the Measuring Instruments via the CPC-13 jig (J-6082-
443-A).
The following table shows the Pin No. and signal name of CN1108.
Table 5-1-13.
1. VCO Adjustment (VC-278 board)
Set the VCO free-run frequency. If deviated, the EVF screen will
be blurred.
be blurred.
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin qa of CN1108 (VCO)
Measuring Instrument
Frequency counter
Adjustment Page
C
Adjustment Address
51, 52
Specified Value
f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)
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.
frequency (f) to the specified
value.
3
C
51
Press PAUSE button.
4
C
51
Read the data, and this data is
named D
named D
51
.
5
Convert D
51
to decimal notation,
and obtain D
51
’. (Note1)
6
Calculate D
52
’ using following
equations (Decimal calculation)
[NTSC model]
When D
[NTSC model]
When D
51
’ 236
D
52
’ = D
51
’+19
When D
51
’ > 236
D
52
’ = 255
[PAL model]
When D
When D
51
’ 19
D
52
’ = D
51
’–19
When D
51
’ < 19
D
52
’ = 00
7
Convert D
52
’ to a hexadecimal
number, and obtain D
52
. (Note)
8
C
52
D
52
Set the data, and press PAUSE
button.
button.
9
0
01
00
Set the data.
Note2:
Refer to “Table 5-4-1. Hexadecimal-decimal Conversion Table”.
Pin No.
1
2
3
4
5
6
7
8
9
10
Signal Name
REG GND
N. C.
BPF MONI
N. C.
PB RF
REG GND
N. C.
RF SWP
N. C.
N. C.
Pin No.
11
12
13
14
15
16
17
18
19
20
Signal Name
VCO
EVF VG
RF SWP
N. C.
CAP FG
RF MON
N. C.
REG GND
REG GND
REG GND
Fig. 5-1-13.
CN1108
20
1
Remove the
CPC lid
CPC lid
5-31
DCR-TRV738E/TRV740/TRV740E/TRV840
2. RGB AMP Adjustment (VC-278 board)
Set the D range of the RGB driver used to drive the LCD to the
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
specified value. If deviated, the LCD screen will become blackish
or saturated (whitish).
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin qs of CN1108 (EVF VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
54
Specified Value
A = 7.50 ± 0.10V (NTSC)
A = 7.52 ± 0.10V (PAL)
A = 7.52 ± 0.10V (PAL)
Note:
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
54
Change the data and set the
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
voltage (A) between the reversed
waveform pedestal and non-
reversed waveform pedestal to the
specified value.
3
C
54
Press PAUSE button.
4
0
01
00
Set the data.
3. Contrast Adjustment (VC-278 board)
Set the level of the VIDEO signal for driving the LCD to the
specified value. If deviated, the screen image will be blackish or
saturated (whitish).
specified value. If deviated, the screen image will be blackish or
saturated (whitish).
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin qs of CN1108 (EVF VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
58
Specified Value
A = 2.49 ± 0.10V (NTSC)
A = 2.42 ± 0.10V (PAL)
A = 2.42 ± 0.10V (PAL)
Note:
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
58
Change the data and set the
voltage (A) between the 100 IRE
and 0 IRE (pedestal) to the
specified value.
(The data should be “00” to “7F”.)
voltage (A) between the 100 IRE
and 0 IRE (pedestal) to the
specified value.
(The data should be “00” to “7F”.)
3
C
58
Press PAUSE button.
4
0
01
00
Set the data.
Pedestal
Pedestal
A
2H
100 IRE
Pedestal
A
2H
Fig. 5-1-14.
Fig. 5-1-15.
