DOWNLOAD Sony CCD-TR913E / CCD-TR950E Service Manual ↓ Size: 33.08 MB | Pages: 127 in PDF or view online for FREE

Model
CCD-TR913E CCD-TR950E
Pages
127
Size
33.08 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie
File
ccd-tr913e-ccd-tr950e.pdf
Date

Sony CCD-TR913E / CCD-TR950E Service Manual ▷ View online

5-21
1-4. COLOR ELECTRONIC VIEWFINDER SYSTEM
ADJUSTMENT
(CCD-TR950E)
Note 1:
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.
Note 2:
When replacing the LCD unit, be careful to prevent damages
caused by static electricity.
[Adjusting connector]
Most of the measuring points for adjusting the viewfinder system
are concentrated in CN910 of the VC-214 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 CN910.
1. EVF Initial Data Input
Mode
Camera
Subject
Arbitrary
Adjustment Page
E
Adjustment Address
C5 to D0, FF
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: E, 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.
Address
C5
C6
C7
C8
C9
CA
CB
CC
CD
CE
CF
D0
FF
Data
70
77
80
80
80
6E
50
F8
A8
40
90
70
A0
Remark
VCO adj.
Bright adj.
Contrast adj.
White balance adj.
White balance adj.
Fixed data
Fixed data
Fixed data
Fixed data
Fixed data
Backlight consumption current adj.
Fixed data
Backlight consumption current adj.
Pin No.
1
2
3
4
5
6
7
8
Signal Name
LANC SIG
XCPC IN
IR VIDEO
AFC F0
BPF MONI
PB RF
RF AGC IN
REG GND
Pin No.
9
10
11
12
13
14
15
16
Signal Name
RF AGC OUT
REC RF
RF SWP
CAP FG
EVF BL
EVF BL 4.75V
VCO
EVF VG
Table 5-1-5.
Fig. 5-1-11.
CN910
1
16
Screw driver (–)
Cover
5-22
2. VCO Adjustment (VF-126 board)
Set the VCO free-run frequency. If deviated, the EVF screen will be
blurred.
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin !∞ of CN910 (VCO) on VC-214
board
Measuring Instrument
Oscilloscope (DC range)
Adjustment Page
E
Adjustment Address
C5
Specified Value
A=1.8 ± 0.1V
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
3)
Check the GND level of the oscilloscope.
4)
Select page: E, address: C5, change the data and set the VCO
output voltage (A) to the specified value.
5)
Press the PAUSE button.
6)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
7)
Select page: 0, address: 01, and set data: 00.
3. Bright Adjustment (VF-126 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).
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin !§ of CN910 (EVF VG) on
VC-214 board
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
C6
Specified Value
A=7.04 ± 0.01V
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: E, address: C6, change the data and set the voltage
(A) between the reversed waveform pedestal and non-reversed
waveform pedestal to the specified value.
4)
Press the PAUSE button.
5)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
6)
Select page: 0, address: 01, and set data: 00.
H
A
GND level 
(0Vdc)
A
2H 
Pedestal 
Pedestal
Fig. 5-1-12.
Fig. 5-1-13.
5-23
4. Contrast Adjustment (VF-126 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).
Mode
Camera
Subject
Arbitrary
Measurement Point
Pin !§ of CN910 (EVF VG) on
VC-214 board
Measuring Instrument
Oscilloscope
Adjustment Page
E
Adjustment Address
C7
Specified Value
A=2.0 ± 0.1V
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: E, address: C7, change the data and set the voltage
(A) between the 7 step peak and the pedestal to the specified
value.
4)
Press the PAUSE button.
5)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
6)
Select page: 0, address: 01, and set data: 00.
5. Backlight Consumption Current Adjustment
    (VF-126 board)
Set the backlight luminance and color temperature.
If deviated, the image may become dark or bright.
Mode
Camera
Subject
Arbitrary
Measurement Point
+ Probe: Pin !¢ of CN910
(EVF BL 4.75V) on VC-214 board
– Probe: Pin !£ of CN910
(EVF BL) on VC-214 board
Measuring Instrument
Digital voltmeter
Adjustment Page
E
Adjustment Address
CF, FF
Specified Value
NORMAL mode : A=16 ± 1mVdc
BRIGHT mode : A=26 ± 1mVdc
Note :
Adjust 30 seconds after running on the power supply.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 55, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 6, address: 6F, set data: 04, and press the PAUSE
button.
4)
Select page: E, address: CF, change the data and set the voltage
difference (A) between Pin !¢ of CN910 (EVF BL 4.75V) and
Pin !£ of CN910 (EVF BL) to the specified value of NORMAL
mode.
5)
Press the PAUSE button.
6)
Select page: 6, address: 6F, set data: 02, and press the PAUSE
button.
7)
Select page: E, address: FF, change the data and set the voltage
difference (A) between Pin !¢ and Pin !£ to the specified value
of BRIGHT mode..
8)
Press the PAUSE button.
9)
Select page: 6, address: 6F, set data: 00, and press the PAUSE
button.
10) Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
11) Select page: 0, address: 01, and set data: 00.
A
2H 
7 step peak
Pedestal
Fig. 5-1-14.
5-24
6. White Balance Adjustment (VF-126 board)
Correct the white balance.
If deviated, the reproduction of the EVF screen may degenerate.
Mode
Camera
Subject
Arbitrary
Measurement Point
Check on EVF screen
Measuring Instrument
Adjustment Page
E
Adjustment Address
C8, C9
Specified Value
The EVF screen should not be colored.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 2, address: 01, set data: 51, and press the PAUSE
button of the adjustment remote commander.
3)
Select page: 2, address: 7D, and set data: 03.
4)
Select page: E, address: C5 and C6, set the data to the initial
value.
Note:
To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.
5)
Check that the EVF screen is not colored. If colored, change
the data of page: E, address: C8 and C9 so that the EVF screen
is not colored.
Note:
To write in the non-volatile memory (EEPROM), press the
PAUSE button of the adjustment remote commander each time
to set the data.
6)
Select page: 2, address: 7D, and set data: 00.
7)
Select page: 2, address: 01, set data: 00, and press the PAUSE
button.
8)
Select page: 0, address: 01, and set data: 00.
Address
C8
C9
Data
80
80
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