Sony DCR-TRV250 (serv.man4) Service Manual ▷ View online
DCR-TRV250
6-23
4. Flange Back Check
Mode
CAMERA
Subject
Siemens star
(2.0 m from the front of the lens)
(Luminance: approx. 200 lux)
(2.0 m from the front of the lens)
(Luminance: approx. 200 lux)
Measurement Point
Check operation on monitor TV
Measuring Instrument
Specified value
Focused at the TELE end and WIDE
end
end
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Switch setting:
1) NIGHT SHOT .................................................................. OFF
1) NIGHT SHOT .................................................................. OFF
Note 2:
When the auto focus is ON, the lens can be checked
if it is focused or not by observing the data on the
page: 1 of the adjusting remote commander.
if it is focused or not by observing the data on the
page: 1 of the adjusting remote commander.
1 : 00 : XX
Odd: Focused
Even: Unfocused
Even: Unfocused
Checking method:
Order Page Address Data
Procedure
1
Place the Siemens star 2.0 m
from the front of the lens.
from the front of the lens.
2
To open the IRIS, decrease
the luminous intensity to the
Siemens star up to a point
before noise appear on the
image.
the luminous intensity to the
Siemens star up to a point
before noise appear on the
image.
3
6
40
01
4
6
41
01
5
Shoot the Siemens star with
the zoom TELE end.
the zoom TELE end.
6
Turn on the auto focus.
7
0
03
0F
8
1
Check that the lens is
focused. (Note 2)
focused. (Note 2)
9
6
21
10
10
Shoot the Siemens star with
the zoom WIDE end.
the zoom WIDE end.
11
Observe the TV monitor and
check that the lens is
focused.
check that the lens is
focused.
Processing after Completing Adjustment:
Order Page Address Data
Procedure
1
6
21
00
2
6
40
00
3
6
41
00
4
0
03
00
DCR-TRV250
6-24
5. Optical Axis Adjustment
Correct a deviation of optical axis between the lens and the CCD
imager.
If deviated, the screen center will be shifted when the lens is
zoomed from TELE end to WIDE end.
imager.
If deviated, the screen center will be shifted when the lens is
zoomed from TELE end to WIDE end.
Subject
Siemens Star
Measurement Point
Check operation on monitor TV
Measuring Instrument
Adjustment Page
F
Adjustment Address
46
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
“Flange Back Adjustment” must be already finished.
Switch setting:
1) DIGITAL ZOOM (Menu display) ................................... OFF
2) STEADY SHOT (Menu display) ..................................... OFF
1) DIGITAL ZOOM (Menu display) ................................... OFF
2) STEADY SHOT (Menu display) ..................................... OFF
Preparation for adjustment:
1) Play a monoscope portion of the System Check tape (WR5-
1) Play a monoscope portion of the System Check tape (WR5-
5ND).
2) Stick the optical axis deviation specification frame to the moni-
tor screen so that the center of monoscope coincides with the
center of specification frame.
center of specification frame.
3) Select the CAMERA mode.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 46, and set data: 00, then press the
1) Select page: 0, address: 01, and set data: 01.
2) Select page: F, address: 46, and set data: 00, then press the
PAUSE button on the adjusting remote commander.
3) Place the Siemens Star at 2 m position away from the lens.
4) Shoot the Siemens Star with the zoom at TELE end.
5) Change the lens direction so that the center of Siemens Star
4) Shoot the Siemens Star with the zoom at TELE end.
5) Change the lens direction so that the center of Siemens Star
coincides with the center of optical axis deviation specifica-
tion frame.
tion frame.
6) Shoot the Siemens Star with the zoom at WIDE end.
7) Check on the monitor TV which area the center of Siemens
7) Check on the monitor TV which area the center of Siemens
Star exists of the optical axis deviation specification frame.
At this time, measure the amount of deviation “L1” (distance
from the center of Siemens Star to the center of optical axis
deviation specification frame).
At this time, measure the amount of deviation “L1” (distance
from the center of Siemens Star to the center of optical axis
deviation specification frame).
8) From the following table, read correction data according to
the area.
0
180
90
67.5
22.5
337.5
292.5
247.5
202.5
157.5
112.5
8
4
5
7
1
6
2
3
270
Fig. 6-1-9
Area
1
2
3
4
5
6
7
8
Deviation Phase
22.6
° to 67.5°
67.6
° to 112.5°
112.6
° to 157.5°
157.6
° to 202.5°
202.6
° to 247.5°
247.6
° to 292.5°
292.6
° to 337.5°
337.6
° to 22.5°
Correction Data
01
02
03
04
05
06
07
08
9) Select page: F, address: 46, and set correction data, then press
the PAUSE button on the adjusting remote commander.
10) Shoot the Siemens Star with the zoom at TELE end.
11) Change the lens direction so that the center of Siemens Star
11) Change the lens direction so that the center of Siemens Star
coincides with the center of optical axis deviation specifica-
tion frame.
tion frame.
12) Shoot the Siemens Star with the zoom at WIDE end.
13) Measure the amount of deviation “L2” (distance from the cen-
13) Measure the amount of deviation “L2” (distance from the cen-
ter of Siemens Star to the center of optical axis deviation speci-
fication frame).
fication frame).
14) Compare L1 and L2, and make sure that the L2 is smaller than
L1.
If large, select page: F, address: 46, and set data: 00, then press
the PAUSE button on the adjusting remote commander.
If large, select page: F, address: 46, and set data: 00, then press
the PAUSE button on the adjusting remote commander.
Processing after completion of adjustment:
1) Select page: 0, address: 01, and set data: 00.
1) Select page: 0, address: 01, and set data: 00.
DCR-TRV250
6-25
Check on the oscilloscope
1. Horizontal period
A=B
C=D
A
B
C
D
E=F
V
E
F
Color bar chart picture frame
Monitor TV picture frame
Fig. 6-1-10
2. Vertical period
Fig. 6-1-11
Check on the monitor TV (Underscanned mode)
Fig. 6-1-12
6. Picture Frame Setting
Mode
CAMERA
Subject
Color bar chart
(Color reproduction adjustment
frame)
(1.5 m from the front of lens)
(Color reproduction adjustment
frame)
(1.5 m from the front of lens)
Measurement Point
Video terminal of A/V OUT jack
(75
(75
Ω terminated)
Measuring Instrument
Oscilloscope and monitor TV
Specified Value
A=B, C=D, E=F
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
Perform “Flange Back Adjustment” before this adjust-
ment.
ment.
Switch setting:
1) NIGHT SHOT .................................................................. OFF
2) DIGITAL ZOOM (Menu setting) .................................... OFF
3) STEADY SHOT (Menu setting) ..................................... OFF
1) NIGHT SHOT .................................................................. OFF
2) DIGITAL ZOOM (Menu setting) .................................... OFF
3) STEADY SHOT (Menu setting) ..................................... OFF
Setting method:
1) Select page: 6, address: 48, and set data: 01.
2) Adjust the zoom and the camera direction, and set to the speci-
1) Select page: 6, address: 48, and set data: 01.
2) Adjust the zoom and the camera direction, and set to the speci-
fied position.
3) Mark the position of the picture frame on the monitor display,
and adjust the picture frame to this position in following ad-
justments using “Color reproduction adjustment frame”.
justments using “Color reproduction adjustment frame”.
Processing after Completing Camera System Adjustments:
1) Select page: 6, address: 48, and set data: 00.
1) Select page: 6, address: 48, and set data: 00.
DCR-TRV250
6-26
R-Y
B-Y
R
B
G
M
G
Y
E
C
Y
Burst
7. Color Reproduction Adjustment
Adjust the color separation matrix coefficient so that proper color
reproduction is produced.
reproduction is produced.
Mode
CAMERA
Subject
Color bar chart
(Color reproduction adjustment
frame)
(Color reproduction adjustment
frame)
Measurement Point
Video terminal of A/V OUT jack
(75
(75
Ω terminated)
Measuring Instrument
Vectorscope
Adjustment Page
F
Adjustment Address
23, 25, 2A, 2B
Specified Value
All color luminance points should
settle within each color reproduction
frame.
settle within each color reproduction
frame.
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
Perform “Flange Back Adjustment” before this adjust-
ment.
ment.
Switch setting:
1) NIGHT SHOT .................................................................. OFF
2) DIGITAL ZOOM (Menu setting) .................................... OFF
3) STEADY SHOT (Menu setting) ..................................... OFF
1) NIGHT SHOT .................................................................. OFF
2) DIGITAL ZOOM (Menu setting) .................................... OFF
3) STEADY SHOT (Menu setting) ..................................... OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
6
48
01
3
6
9D
29
4
6
01
3D
Press PAUSE button.
5
F
80
Note down the data.
6
F
80
37
Press PAUSE button.
7
Adjust the GAIN and
PHASE of the vectorscope,
and set to the burst lumi-
nance point to the burst
position of color reproduc-
tion frame.
PHASE of the vectorscope,
and set to the burst lumi-
nance point to the burst
position of color reproduc-
tion frame.
8
F
Change the data and settle
each color luminance point in
each color reproduction
frame. (Note 3)
each color luminance point in
each color reproduction
frame. (Note 3)
Note 3:
Be sure to press the PAUSE button of the adjusting re-
mote commander before changing the addresses. If not,
the new data will not be written to the memory.
mote commander before changing the addresses. If not,
the new data will not be written to the memory.
Fig. 6-1-13
23
25
25
2A
2B
2B
Processing after Completing Adjustment:
Order Page Address Data
Procedure
1
F
80
Set data noted down at step
5, and press PAUSE button.
5, and press PAUSE button.
2
6
01
00
Press PAUSE button.
3
6
48
00
4
6
9D
00
5
0
01
00
Click on the first or last page to see other DCR-TRV250 (serv.man4) service manuals if exist.