Sony DCR-TRV75 / DCR-TRV75E / DCR-TRV80 / DCR-TRV80E (serv.man4) Service Manual ▷ View online
6-38
DCR-TRV75/TRV75E/TRV80/TRV80E
2. RGB AMP Adjustment (DI-089 board)
Set the D range of the RGB decoder 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).
Note:
Do either of the automatic adjustment or the manual adjustment.
2-1. Automatic Adjustment
Mode
Camera
Subject
Arbitrary
Adjustment Page
C
Adjustment Address
39
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
3
01
50
Set the data, and press PAUSE
button.
button.
3
3
02
Check that the data changes from
“50” to “00”.
“50” to “00”.
4
3
01
00
Set the data, and press PAUSE
button.
button.
5
0
01
00
Set the data.
2-2. Manual Adjustment
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin qd of CN1004 of VC-316 board
(EVF VG)
(EVF VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
39
Specified Value
A = 7.00 ± 0.05V
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
39
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
39
Press PAUSE button.
4
0
01
00
Set the data.
Pedestal
Pedestal
A
2H
Fig. 6-1-19.
6-39
DCR-TRV75/TRV75E/TRV80/TRV80E
3. Contrast Adjustment (DI-089 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).
value. If deviated, the screen image will be blackish or saturated
(whitish).
Note:
Do either of the automatic adjustment or the manual adjustment.
3-1. Automatic Adjustment
Mode
Camera
Subject
Arbitrary
Adjustment Page
C
Adjustment Address
3E
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
3
01
51
Set the data, and press PAUSE
button.
button.
3
3
02
Check that the data changes from
“51” to “00”.
“51” to “00”.
4
3
01
00
Set the data, and press PAUSE
button.
button.
5
0
01
00
Set the data.
3-2. Manual Adjustment
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin qd of CN1004 of VC-316 board
(EVF VG)
(EVF VG)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
3E
Specified Value
A = 2.40 ± 0.05V
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
3E
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
3E
Press PAUSE button.
4
0
01
00
Set the data.
100 IRE
Pedestal
A
2H
Fig. 6-1-20.
6-40
DCR-TRV75/TRV75E/TRV80/TRV80E
4. White Balance Adjustment (DI-089 board)
Correct the white balance.
If deviated, the reproduction of the EVF screen may degenerate.
If deviated, the reproduction of the EVF screen may degenerate.
Mode
Camera
Subject
Arbitrary
Measurement Point
Check on EVF screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
3C, 3D
Specified Value
The EVF screen should not be colored.
Note1:
Check the white balance only when replacing the following parts.
If necessary, adjust them.
If necessary, adjust them.
1. LCD panel
2. Light induction plate
3. IC3202
2. Light induction plate
3. IC3202
Note2:
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
3C
80
Set the data, and press PAUSE
button.
button.
3
C
3D
74
Set the data, and press PAUSE
button.
button.
4
C
3D
Check that the EVF screen is not
colored. If not colored, proceed to
step 10.
colored. If not colored, proceed to
step 10.
5
C
3C
Change the data so that the EVF
screen is not colored.
screen is not colored.
6
C
3C
Press PAUSE button.
7
C
3D
Change the data so that the EVF
screen is not colored.
screen is not colored.
8
C
3D
Press PAUSE button.
9
C
3D
If the EVF screen is colored,
repeat steps 5 to 9.
repeat steps 5 to 9.
10
0
01
00
Set the data.
6-41
DCR-TRV75/TRV75E/TRV80/TRV80E
1-5.
LCD SYSTEM ADJUSTMENT
Note1:
The back light (fluorescent tube) is driven by a high voltage AC
power supply. Therefore, do not touch the back light holder to
avoid electrical shock.
power supply. Therefore, do not touch the back light holder to
avoid electrical shock.
Note2:
When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
caused by static electricity.
Note3:
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.
Note4:
NTSC model: DCR-TRV75/TRV80
PAL model: DCR-TRV75E/TRV85E
PAL model: DCR-TRV75E/TRV85E
[Adjusting connector]
Most of the measuring points for adjusting the LCD system are
concentrated in CN1004 of the VC-316 board. Connect the
measuring instruments via the multi CPC-7 jig (J-6082-382-A). The
following table shows the Pin No. and signal name of CN1004.
Most of the measuring points for adjusting the LCD system are
concentrated in CN1004 of the VC-316 board. Connect the
measuring instruments via the multi CPC-7 jig (J-6082-382-A). The
following table shows the Pin No. and signal name of CN1004.
1. VCO Adjustment (PD-192 board)
Set the VCO free-run frequency. If deviated, the LCD screen will
be blurred.
be blurred.
Mode
VTR stop
Signal
No signal
Measurement Point
Pin 7 of CN1004 of VC-316 board
(H START)
(H START)
Measuring Instrument
Frequency counter
Adjustment Page
C
Adjustment Address
47, 48
Specified Value
f = 15734 ± 30Hz (NTSC)
f = 15625 ± 30Hz (PAL)
f = 15625 ± 30Hz (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
47
Change the data and set the
VCO frequency (f) to the
specified value.
VCO frequency (f) to the
specified value.
3
C
47
Press PAUSE button.
4
C
47
Read the data, and this data is
named D
named D
47
.
5
C
48
D
47
Set the data, and press PAUSE
button.
button.
6
0
01
00
Set the data.
Fig. 6-1-21.
Pin No.
1
2
3
4
5
6
7
8
Signal Name
FRRV
RF MON
RF IN/LANC JACK IN
SWP
PANEL COM
REG_GND
H START
REG_GND
Pin No.
9
10
11
12
13
14
15
16
Signal Name
PANEL VG
REG_GND
EVF VCO
REG_GND
EVF VG
EXT DA
N.C.
N.C.
Table 6-1-15.
COVER
COVER
CN1004
16
1
Remove the
CPC lid.
CPC lid.
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