Sony DCR-DVD101 / DCR-DVD101E / DCR-DVD91E (serv.man4) Service Manual ▷ View online
6-35
DCR-DVD91E/DVD101/DVD101E
2-1-5.
Input/Output Level and Impedance
Video input/output (DVD101/DVD101E), Video output (DVD91E)
A/V jack
Video signal: 1 Vp-p, 75
Video signal: 1 Vp-p, 75
Ω
unbalanced,
sync negative
S video input/output (DVD101/DVD101E), S video output (DVD91E)
A/V jack
Luminance signal
Luminance signal
: 1 Vp-p, 75
Ω
unbalanced,
sync negative
Chrominance signal : 0.286 Vp-p, 75
Ω
unbalanced (NTSC)
: 0.300 Vp-p, 75
Ω
unbalanced (PAL)
Audio input/output (DVD101/DVD101E), Audio output (DVD91E)
A/V jack
Input level
Input level
: 327 mV
Input impedance : More than 47 k
Ω
Output level
: 327 mV (at load impedance 47 k
Ω
Output impedance : Below 2.2 k
Ω
6-36
DCR-DVD91E/DVD101/DVD101E
2-2.
VIDEO SYSTEM ADJUSTMENTS
Note1:
efore perform the video system adjustments, check that the
specified value of “36MHz 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.
specified value of “36MHz 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-DVD101
PAL model
PAL model
: DCR-DVD91E/DVD101E
1. S VIDEO OUT Y Level Adjustment (VC-353 Board)
Mode
MOVIE (
)
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO jack
(75
(75
Ω
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
B
Adjustment Address
D1
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
00
00
Set the data.
3
3
0C
03
Set the data, and press PAUSE
button.
button.
4
B
D1
Change the data and set the Y
signal level (A) to the specified
value.
signal level (A) to the specified
value.
5
B
D1
Press PAUSE button.
6
3
0C
00
Set the data, and press PAUSE
button.
button.
7
0
01
00
Set the data.
2. S VIDEO OUT Chroma Level Adjustment (VC-353 Board)
Mode
MOVIE (
)
Subject
Arbitrary
Measurement Point
Chroma signal terminal of S VIDEO
jack (75
jack (75
Ω
terminated)
External trigger: Y signal terminal of
S VIDEO jack
S VIDEO jack
Measuring Instrument
Oscilloscope
Adjustment Page
B
Adjustment Address
D2, D3
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
00
00
Set the data.
3
3
0C
03
Set the data, and press PAUSE
button.
button.
4
B
D2
Change the data and set the Cr
signal level (A) to the specified
value.
signal level (A) to the specified
value.
5
B
D2
Press PAUSE button.
6
B
D3
Change the data and set the Cb
signal level (B) to the specified
value.
signal level (B) to the specified
value.
7
B
D3
Press PAUSE button.
8
3
0C
00
Set the data, and press PAUSE
button.
button.
9
Check that the burst signal level
(C) is satisfied the specified value.
(C) is satisfied the specified value.
10
0
01
00
Set the data.
Fig. 6-2-3.
Fig. 6-2-4.
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)
6-37
DCR-DVD91E/DVD101/DVD101E
3. VIDEO OUT Y, Chroma Level Check (VC-353 Board)
Mode
MOVIE (
)
Subject
Arbitrary
Measurement Point
Video terminal of AUDIO VIDEO
jack (75
jack (75
Ω
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
00
00
Set the data.
2
3
0C
03
Set the data, and press PAUSE
button.
button.
3
Check that the sync signal level
(A) satisfies the specified value.
(A) satisfies the specified value.
4
Check that the burst signal level
(B) satisfies the specified value.
(B) satisfies the specified value.
5
3
0C
00
Set the data, and press PAUSE
button.
button.
Fig. 6-2-5.
H
B
A
6-38
DCR-DVD91E/DVD101/DVD101E
2-3.
AUDIO SYSTEM ADJUSTMENTS
Note1:
When checking the DCR-DVD91E model. To check it playback
the disc, which recorded with the DCR-DVD101E model or
DCR-DVD201E model
the disc, which recorded with the DCR-DVD101E model or
DCR-DVD201E model
Switch setting:
REC MODE (DISC SET of Menu setting) ........................ LP
Note2:
Reset to SP, after completing adjustments.
Type of disc to use:
DVD-RW (VF format)
DVD-RW (VF format)
[Connection of Audio System Measuring Devices]
Connect the audio system measuring devices as shown in Fig. 6-2-6.
Connect the audio system measuring devices as shown in Fig. 6-2-6.
Note3:
In recording mode, input a color bar signal to the video input.
1. Overall Level Characteristics Check
Mode
PLAY (
) mode
Recording and playback
Signal
400Hz, -7.5dBs signal:
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
Measurement Point
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO/VIDEO jack
Measuring Instrument
Audio level meter
Specified Value
-7.5 ± 1.0dBs
Checking Method
1)
1)
Input the 400Hz, -7.5dBs signal in the AUDIO L and AUDIO
R terminal.
R terminal.
2)
Record the signal.
3)
Playback the recorded section.
4)
Check that the 400Hz signal level is the specified value.
2. Overall Distortion Check
Mode
PLAY (
) mode
Recording and playback
Signal
400Hz, -7.5dBs signal:
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
Measurement Point
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO/VIDEO jack
Measuring Instrument
Audio distortion meter
Specified Value
Below 0.4% (200Hz to 6kHz BPF ON)
Checking Method
1)
1)
Input the 400Hz, -7.5dBs signal in the AUDIO L and AUDIO
R terminal.
R terminal.
2)
Record the signal.
3)
Playback the recorded section.
4)
Check that the distortion is the specified value.
3. Overall Noise Level Check
Mode
PLAY (
) mode
Recording and playback
Signal
No signal:
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
Measurement Point
AUDIO L and AUDIO R terminal of
AUDIO/VIDEO jack
AUDIO/VIDEO jack
Measuring Instrument
Audio level meter
Specified Value
Below -45dBs
(IHF-A filter ON, 20kHz LPF ON)
(IHF-A filter ON, 20kHz LPF ON)
Checking Method
1)
1)
Insert shorting plugs in each of AUDIO L and AUDIO R
terminal.
terminal.
2)
Record the signal.
3)
Remove the shorting plugs.
4)
Playback the recorded section.
5)
Check that the noise level is the specified value.
Fig. 6-2-6.
[How to record the line input signal]
1)
1)
Set the mode dial to PLAY/EDIT (
).
2)
Press the VISUAL INDEX button so that the line input video
signal is displayed on the LCD screen
signal is displayed on the LCD screen
3)
Press the REC buttons.
Recording (Except for DCR-DVD91E model)
Audio oscillator
Attenuator
600
Ω
Main unit
600
Ω
: 270
Ω
(1-249-410-11) + 330
Ω
(1-249-411-11)
Main unit
Left (White)
Right
47k
Ω
47k
Ω
Video (Yellow)
TV monitor
Audio level meter
or Distortion meter
47k
Ω
(1-249-437-11)
Playback
AUDIO/VIDEO
(Red)
Video
(Yellow)
(Yellow)
Left
(White)
(White)
Right
(Red)
(Red)
Pattern generator
Video output
(75
(75
Ω
)
AUDIO/VIDEO
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