DOWNLOAD Sony DCR-TRV22 / DCR-TRV22E (serv.man4) Service Manual ↓ Size: 1.44 MB | Pages: 67 in PDF or view online for FREE

Model
DCR-TRV22 DCR-TRV22E (serv.man4)
Pages
67
Size
1.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / SECTION 6 ADJUSTMENTS
File
dcr-trv22-dcr-trv22e-sm4.pdf
Date

Sony DCR-TRV22 / DCR-TRV22E (serv.man4) Service Manual ▷ View online

6-50
DCR-TRV22/TRV22E
3. Error Rate Check
3-1. Preparations before adjustments
Mode
Camera recording (LP mode)
Subject
Moving object
Audio signal
400Hz, –66 dBs signal: MIC jack left
and right. (Refer to Fig. 6-3-5.)
Adjusting method:
Order Page Address Data
Procedure
1
Set REC MODE (Note1) to LP.
2
Record the camera signal for three
minutes.
Note1:
TAPE SET of the menu settings.
3-2. Error Rate Check
Mode
Playback
Signal
Recorded signal at “Preparations before
adjustments”
Measurement Point
Monitor TV, Headphone
Measuring Instrument
Adjustment Page
1C (Note2)
Adjustment Address
B3 to C8
Specified Value
Playback picture and sound are normal.
Note2:
When reading or writing the 1C page data, select page: 0, address:
10, and set data: 01, then select C page. The 1C page can be chosen
by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.
Adjusting method:
Order Page Address Data
Procedure
1
Playback the recorded signal at
“Preparations before adjustments”
2
0
01
01
Set the data.
3
0
10
00
Set the data.
4
3
01
08
Set the data, and press PAUSE
button.
5
Confirm that the playback picture
and sound are normal. If not,
proceed to step 10. (Note3)
6
3
01
52
Set the data, and press PAUSE
button.
7
3
00
Change the address.
8
3
01
Check that the data is “00”.
9
0
01
00
Set the data.
Note3:
When playback picture or sound is abnormal, check the use tape,
clean the tape running surface, and perform re-adjustment.
Processing after Completing Adjustments
Order Page Address Data
Procedure
1
Set REC MODE to SP.
6-51
DCR-TRV22/TRV22E
3-4.
VIDEO SYSTEM ADJUSTMENTS
Note1:
Before perform the servo and RF system adjustments, check that
the specified value of “36 MHz Origin Oscillation Adjustment” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
Note2:
NTSC model: DCR-TRV22
PAL model: DCR-TRV22E
1. S VIDEO OUT Y Level Adjustment (VC-312 Board)
Mode
Camera
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO jack
(75
 terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
25
Specified Value
A = 1000 ± 14mV
Note:
The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ........................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
3
0C
02
Set the data, and press PAUSE
button.
3
C
25
Change the data and set the Y
signal level (A) to the specified
value.
4
C
25
Press PAUSE button.
5
3
0C
00
Set the data, and press PAUSE
button.
6
0
01
00
Set the data.
2. S VIDEO OUT Chroma Level Adjustment
(VC-312 Board)
Mode
Camera
Subject
Arbitrary
Measurement Point
Chroma signal terminal of S VIDEO
jack (75
 terminated)
External trigger: Y signal terminal of S
VIDEO jack
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
26, 27
Specified Value
Cr level:
A = 714 ± 14mV (NTSC)
A = 700 ± 14mV (PAL)
Cb level:
B = 714 ± 14mV (NTSC)
B = 700 ± 14mV (PAL)
Burst level: C = 286 ± 6mV (NTSC)
C = 300 ± 6mV (PAL)
Note:
The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ........................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
3
0C
02
Set the data, and press PAUSE
button.
3
C
26
Change the data and set the Cr signal
level (A) to the specified value.
4
C
26
Press PAUSE button.
5
C
27
Change the data and set the Cb signal
level (B) to the specified value.
6
C
7
Press PAUSE button.
7
Check that the burst signal level
(C) is satisfied the specified value.
8
3
0C
00
Set the data, and press PAUSE
button.
9
0
01
00
Set the data.
Fig. 6-3-5.
Fig. 6-3-6.
H
A
H
C
A
0.28 
µ
sec (NTSC)
0.23 
µ
sec (PAL)
B
0.28 
µ
sec (NTSC) 
0.23 
µ
sec (PAL)
COVER
COVER
6-52
DCR-TRV22/TRV22E
3. VIDEO OUT Y, Chroma Level Check (VC-312 Board)
Mode
Camera
Subject
Arbitrary
Measurement Point
Video terminal of AUDIO VIDEO jack
(75
 terminated)
Measuring Instrument
Oscilloscope
Specified Value
Sync level: A = 286 ± 18mV (NTSC)
A = 300 ± 18mV (PAL)
Burst level: B = 286 ± 18mV (NTSC)
B = 300 ± 18mV (PAL)
Note:
The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ........................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
3
0C
02
Set the data, and press PAUSE
button.
2
Check that the sync signal level
(A) satisfies the specified value.
3
Check that the burst signal level
(B) satisfies the specified value.
4
3
0C
00
Set the data, and press PAUSE
button.
Fig. 6-3-7.
H
B
A
6-53
DCR-TRV22/TRV22E
3-5.
AUDIO SYSTEM ADJUSTMENTS
[Connection of Audio System Measuring Devices]
Connect the audio system measuring devices as shown in Fig. 6-3-8.
Fig. 6-3-8.
Recording (Camera mode)
Audio oscillator
Attenuator
600 
Left
Right
Main unit
MIC
600 
: 270 
 (1-249-410-11) + 330 
 (1-249-411-11)
Main unit
AUDIO/
VIDEO
OUT
Left (White)
Right 
47k 
47k 
Video (Yellow)
TV monitor
Audio level meter
or Distortion meter
47k 
 (1-249-437-11)
Playback
(Red)
COVER
COVER
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