Sony CCD-TR820E / CCD-TR825E / CCD-TR920E / CCD-TR930 Service Manual ▷ View online
5-29
Fig. 5-1-11. A
2mm
R-Y
2mm
B-Y
Fig. 5-1-11. C
Fig. 5-1-11. B
1.0mm
B-Y
3mm
R-Y
1.0mm
3mm
R-Y
3mm
3mm
2.0mm
1.0mm
B-Y
5-30
12. Velocity Sensor Sensitivity Adjustment
•
This adjustment is performed only when replacing the
velocity sensor.
Although this adjustment need not be performed when the
circuit is damaged, etc., check the operations.
velocity sensor.
Although this adjustment need not be performed when the
circuit is damaged, etc., check the operations.
•
Note down the sensitivity displayed on the velocity sensor
of the repair parts. At this time, note down also to which
board it was attached to.
Be sure to check because if attached incorrectly, the
screen will vibrate up and down or left and right during
hand-shake correction operations.
of the repair parts. At this time, note down also to which
board it was attached to.
Be sure to check because if attached incorrectly, the
screen will vibrate up and down or left and right during
hand-shake correction operations.
Precautions on Parts Replacement
There are two types of repair parts-ENC05EA and ENC05EB.
Replace the broken sensor with a same type of sensor. If
ENC05EA and ENC05EB are attached correctly, the screen will
vibrate up and down or left and right during hand-shake
correction operations. After replacing, re-adjust according to the
adjusting method after replacement.
Replace the broken sensor with a same type of sensor. If
ENC05EA and ENC05EB are attached correctly, the screen will
vibrate up and down or left and right during hand-shake
correction operations. After replacing, re-adjust according to the
adjusting method after replacement.
Precautions on Velocity Sensor
The sensor incorporates a precision oscillator. Handle it with
care as if it is dropped, the the balance of the oscillator will be
disrupted and operations will not be performed properly.
care as if it is dropped, the the balance of the oscillator will be
disrupted and operations will not be performed properly.
4)
Calculate D
50
´ and D
51
´ using the following equation
(decimal calculation).
NTSC model
NTSC model
5)
Convert D
50
´ and D
51
´ into hexadecimal digits, to obtain
D
50
and D
51
. (Round off decimal points)
6)
Set data: D
50
to page: F, address: 50, and press the
PAUSE button of the adjusting remote commander.
7)
Set data: D
51
to page: F, address: 51, and press the
PAUSE button of the adjusting remote commander.
Processing after Completing Adjustments
1)
1)
Set data: 00 to page: 0, address: 01.
2)
Check that the hand-shake correction operations have been
performed normally.
performed normally.
D
50
´ =
D
51
´ =
135
S
452
130
S
451
D
50
´ =
D
51
´ =
180
S
452
146
S
451
PAL model
Adjusting page
Adjusting address
F
50, 51
Note: The sensor sensitivity of SE451 and SE452 of the SE-
61 board is written only on the repair parts.
Adjusting method:
1)
1)
Set data: 01 to page: 0, address: 01.
2)
Read the sensor sensitivity written on SE452 of the SE-61
board, and this data is named S
board, and this data is named S
452
.
3)
Read the sensor sensitivity written on SE451 of the SE-61
board, and this data is named S
board, and this data is named S
451
.
5-31
1-4. COLOR ELECTRONIC VIEWFINDER SYSTEM ADJUSTMENT
(COLOR EVF model : CCD-TR930/TR920E)
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.
the back light holder to avoid electrical shock.
Note 2: When replacing the LCD unit, be careful to prevent
damages caused by static electricity.
Note 3: Set the VF PW-SAVE (Menu display) to “OFF”
position, unless specified otherwise.
[Adjusting connector]
Most of the measuring points for adjusting the view-finder are
concentrated in CN207 of the VC-190 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
CN207.
concentrated in CN207 of the VC-190 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
CN207.
Table 5-1-9.
[Power Supply Voltage]
Adjust the power supply voltage so that the battery terminal
voltage becomes 8.4
voltage becomes 8.4
±
0.1 Vdc .
Adjusting method:
1)
1)
Set data: 01 to page: 0, address: 01.
2)
Select page: D, and input the data in the following table.
Note: To write in the non-volatile memory (EEPROM),
Note: To write in the non-volatile memory (EEPROM),
press the PAUSE button of the adjusting remote
commander each time to set the data.
commander each time to set the data.
3)
Set data: 00 to page: 0, address: 01.
EZ I/O
EVF UNREG (–)
EVF UNREG
EVF VG
VCO
BPF MON
RF AGC OUT
AFC FO
PB PCM RF
REC RF
RF SWP
CAP FG
REG GND
PB RF
RF AGC IN
REC AFM
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
Signal name
Pin No.
Signal name
Pin No.
1.
EVF Initial Data Input
Camera
Arbitrary
D
40 to 51
Mode
Subject
Adjustment Page
Adjustment Address
Remark
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Fixed value
Data
3F
00
24
24
82
00
88 (NTSC), C8 (PAL)
67
A3
A6
AD
6F
93
93
B0
B4
48
40
Address
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
Table 5-1-10.
5-32
2.
VCO Adjustment (VF-112 board)
Set the VCO freerun frequency. If deviated, the EVF screen
will be blurred.
will be blurred.
Camera
Arbitrary
Pin !£ of CN207 (VCO) on VC-190
board
Oscilloscope (DC range)
D
4F
A = 1.8
±
0.1Vdc
Adjusting method:
1)
1)
Set data: 01 to page: 0, address: 01.
2)
Check the GND level of the oscilloscope.
3)
Change the data of page: D, address: 4F, and set the PCO
output voltage (A) to the specified value.
output voltage (A) to the specified value.
4)
P r e ss th e PA USE but t o n o f t he ad ju sti ng re m ot e
commander.
commander.
5)
Set data: 00 to page: 0, address: 01.
3.
Bright Adjustment (VF-112 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).
Connection:
1)
1)
Connect Pin !™ and Pin 5 (GND) of CN207 with a 3.3
k
k
Ω
resistor.
3.3 k
Ω
resistor: 1-249-423-11
Adjusting method:
1)
1)
Set data: 01 to page: 0, address: 01.
2)
Input the following data to page: D, address: 40 to 45.
Note: To write in the non-volatile memory (EEPROM),
Note: To write in the non-volatile memory (EEPROM),
press the PAUSE button of the adjusting remote
commander each time to set the data.
commander each time to set the data.
Mode
Subject
Measurement point
Measuring instrument
Adjustment page
Adjustment address
Specified value
Fig. 5-1-12.
Camera
Arbitrary
Pin !™ of CN207 (EVF VG) on
VC-190 board
Oscilloscope
D
48
A = 7.1
±
0.1 V
Mode
Subject
Measurement point
Measuring instrument
Adjustment page
Adjustment address
Specified value
3)
Change the data of page: D, address: 48, 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.
4)
P r es s t he P AU S E bu tt on of t he ad ju st i ng re mote
commander.
commander.
5)
Input the following data to page: D, address: 40 to 45.
Note: To write in the non-volatile memory (EEPROM),
Note: To write in the non-volatile memory (EEPROM),
press the PAUSE button of the adjusting remote
commander each time to set the data.
commander each time to set the data.
Address
40
41
42
43
44
45
Data
00
00
00
00
00
00
Address
40
41
42
43
44
45
Data
3F
00
24
24
82
00
6)
Set data: 00 to page: 0, address: 01.
Fig. 5-1-13.
H
A
GND level
(0 Vdc)
(0 Vdc)
2H
A
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