DOWNLOAD Sony DCR-HC21 (serv.man2) Service Manual ↓ Size: 1.11 MB | Pages: 89 in PDF or view online for FREE

Model
DCR-HC21 (serv.man2)
Pages
89
Size
1.11 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / SECTION 6 ADJUSTMENTS BRAZIL
File
dcr-hc21-sm2.pdf
Date

Sony DCR-HC21 (serv.man2) Service Manual ▷ View online

6-62
DCR-HC21
3-4.
VIDEO SYSTEM ADJUSTMENTS
Before perform the video system adjustments, check that the speci-
fied values of “36 MHz Origin Oscillation Adjustment” of “1-3.
CAMERA SYSTEM ADJUSTMENTS” is satisfied.
Check that the data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
Note :
Non MS model: DCR-HC17E/HC19E/HC21/HC21E/
HC22E
MS model: DCR-HC32/HC32E/HC33/HC33E
Adjusting Procedure:
1. S VIDEO OUT Y level adjustment
2. S VIDEO OUT chroma level adjustment
3. VIDEO OUT level check
1.
S VIDEO OUT Y Level Adjustment
(VC-376 board (Non MS model))
(VC-377 board (MS model))
Mode
CAMERA (Non MS model)
CAMERA-TAPE (MS model)
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO plug
of A/V jack (75 
 terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
25
Specified value
A = 1000 
±
 14 mVp-p
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Switch setting:
1)
DEMO MODE (Menu setting) ......................................  OFF
Fig. 6-3-5
H
A
Note 2:
For the bit values, refer to “6-4. SERVICE MODE”, “4-
3. 5. Bit value discrimination”.
4C
4C
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
A0
(Non MS model only)
Set the bit value of bit3 is
“1”, and press PAUSE
button. (Note 2)
(MS model only)
Set the bit value of bit1 is
“0”, and press PAUSE
button.(Note 2)
3
3
0C
02
Press PAUSE button.
4
C
25
Change the data and set the Y
signal level (A) to the
specified value.
5
C
25
Press PAUSE button.
6
3
0C
00
Press PAUSE button.
7
8
A0
(Non MS model only)
Set the bit value of bit3 is
“0”, and press PAUSE
button. (Note 2)
(MS model only)
Set the bit value of bit1 is
“1”, and press PAUSE
button.(Note 2)
8
0
01
00
6-63
DCR-HC21
2.
S VIDEO OUT Chroma Level Adjustment
(VC-376 board (Non MS model))
(VC-377 board (MS model))
Mode
CAMERA (Non MS model)
CAMERA-TAPE (MS model)
Subject
Arbitrary
Measurement Point
Chroma signal terminal of S VIDEO
plug of A/V jack (75 
 terminated)
External trigger: Y signal terminal of
S VIDEO plug of A/V jack (75 
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
26, 27
  Specified value
Cr level: A = 714 
±
 14 mVp-p (NTSC)
A = 700 
±
 14 mVp-p (PAL)
Cb level: B = 714 
±
 14 mVp-p(NTSC)
B = 700 
±
 14 mVp-p(PAL)
Burst level: C = 286 
±
 6 mVp-p(NTSC)
   C = 300 
±
 6 mVp-p(PAL)
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Switch setting:
1) DEMO MODE (Menu setting) ........................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
A0
(Non MS model only)
Set the bit value of bit3 is
“1”, and press PAUSE button.
(Note 2)
(MS model only)
Set the bit value of bit1 is
“0”, and press PAUSE button.
(Note 2)
3
3
0C
02
Press PAUSE button.
4
C
26
Change the data and set the
Cr signal level (A) to the
specified value.
5
C
26
Press PAUSE button.
6
C
27
Change the data and set the
Cb signal level (B) to the
specified value.
7
C
27
Press PAUSE button.
8
Check the burst signal (C) to
the specified value.
9
3
0C
00
10
8
A0
(Non MS model only)
Set the bit value of bit3 is
“0”, and press PAUSE button.
(Note 2)
(MS model only)
Set the bit value of bit1 is
“1”, and press PAUSE button.
(Note 2)
11
0
01
00
Note 2:
For the bit values, refer to “6-4. SERVICE MODE”, “4-
3. 3. Bit value discrimination”.
H
A
0.28
μ
sec(NTSC)
B
0.28
μ
sec(NTSC)
0.23
μ
sec(PAL)
0.23
μ
sec(PAL)
C
Fig. 6-3-6
4C
4C
6-64
DCR-HC21
3.
VIDEO OUT Level Check
(VC-376 board (Non MS model))
(VC-377 board (MS model))
Mode
CAMERA (Non MS model)
CAMERA-TAPE (MS model)
Subject
Arbitrary
Measurement Point
Video terminal of A/V jack (75 
terminated)
Measuring Instrument
Oscilloscope
Specified value
Sync level: A = 286 
±
 18 mVp-p(NTSC)
A = 300 
±
 18 mVp-p (PAL)
Burst level: B = 286 
±
 18 mVp-p(NTSC)
B = 300 
±
 18 mVp-p(PAL)
Note:
Check that the data of page: 0, address: 10 is “00”.
Switch setting:
1) DEMO MODE (Menu setting) ........................................ OFF
Checking method:
Order Page Address Data
Procedure
1
3
0C
02
Press PAUSE button.
2
Check the sync signal level
(A) to the specified value.
3
Check the burst signal level
(B) to the specified value.
4
3
0C
00
Press PAUSE button.
Fig. 6-3-7
H
B
A
6-65
DCR-HC21
3-5.
AUDIO SYSTEM ADJUSTMENTS
(Non MS model)
Note :
Non MS model: DCR-HC17E/HC19E/HC21/HC21E/
HC22E
[Connecting the measuring instruments for the audio]
Connect the audio system measuring instruments in addition to
the video system measuring instruments as shown in Fig. 6-3-8.
Fig. 6-3-8
Audio
oscillator
Attenuator
600 
600 
 (270 
 (1-249-410-11) +330 
 (1-249-411-11))
Main unit
Main unit
47 k 
47 k 
: 1-249-437-11
Audio level meter or
distortion meter
TV monitor
A/V OUT
 jack
Pattern generator 
Video output
 (75 
)
A/V OUT
jack
(L)
(R)
Video
Audio (L)
Audio (R)
In Recording (PLAY/EDIT mode)
In Playback (PLAY/EDIT mode)
Audio
Video
Audio
1.
Playback Level Check
Mode
Playback (PLAY/EDIT mode)
Signal
Alignment tape:
For audio operation check
(XH5-3 (NTSC))
(XH5-3P (PAL))
Measurement Point
Audio left or right terminal of A/V
jack
Measuring Instrument
Audio level meter and frequency
counter
Specified Value
32 kHz mode: 1 kHz, + 3.0 
±
 2.0 dBs
48 kHz mode: 1 kHz, + 3.0 
±
 2.0 dBs
44.1 kHz mode:
The 7.35 kHz signal level during EMP
OFF is +2.0 
±
 2.0 dBs.
The 7.35 kHz signal level during EMP
ON is 
±
 2 dB from the signal level
during EMP OFF.
Note :
NTSC model: DCR-HC21
PAL model: DCR-HC17E/HC19E/HC21E/HC22E
Checking Method:
1) Check that the playback signal level is the specified value.
2. Overall Level Characteristics Check
Mode
Recording and playback (PLAY/
EDIT mode)
Signal
400 Hz, 
7.5 dBs signal:
Audio left and right terminal of A/V
OUT jack
Measurement Point
Audio left or right terminal of A/V
OUT jack
Measuring Instrument
Audio level meter
Specified Value
–7.5 
±
 3.0 dBs
Checking Method:
1) Select page: 7, address: 05, and set the bit value of bit 7 to  “1”.
2) Input the 400 Hz, –7.5 dBs signal in the audio left and right
terminal of A/V OUT jack.
3) Record the signal.
4) Remove the input signal.
5) Playback the recorded section.
6) Check that the 400 Hz signal level is the specified value.
7) Select page: 7, address: 05, and set the bit value of bit 7 to  “0”.
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