Sony DCR-TRV345E / DCR-TRV350 / DCR-TRV351 / DCR-TRV355E / DCR-TRV356E (serv.man4) Service Manual ▷ View online
6-54
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
3.
S VIDEO OUT C Level Adjustment (VC-305 board)
Mode
CAMERA
Subject
Arbitrary
Measurement Point
Chroma signal terminal of
S VIDEO jack (75
S VIDEO jack (75
Ω terminated)
External trigger: Y signal terminal of
S VIDEO jack (75
S VIDEO jack (75
Ω 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”.
Note 2:
NTSC model: DCR-TRV350/TRV351
PAL model: DCR-TRV345E/TRV355E/TRV356E
PAL model: DCR-TRV345E/TRV355E/TRV356E
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
A0
Set the bit value of bit 3 to “1”,
and press PAUSE button.
(Note 3)
and press PAUSE button.
(Note 3)
3
3
0C
02
Press PAUSE button.
4
C
26
Change the data and set the
Cr signal level (A) to the
specified value.
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.
Cb signal level (B) to the
specified value.
7
C
27
Press PAUSE button.
8
Check the burst signal (C) to
the specified value.
the specified value.
9
8
A0
Set the bit value of bit 3 to “0”,
and press PAUSE button.
(Note 3)
and press PAUSE button.
(Note 3)
10
3
0C
00
Press PAUSE button.
11
0
01
00
Note 3:
For the bit values, refer to “6-4. SERVICE MODE”, “4-
3. 3. Bit Value Discrimination”.
3. 3. Bit Value Discrimination”.
Fig. 6-3-8
H
C
A
0.28
µ
sec (NTSC)
0.23
µ
sec (PAL)
B
0.28
µ
sec (NTSC)
0.23
µ
sec (PAL)
6-55
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
4. VIDEO OUT Level Check (VC-305 board)
Mode
CAMERA
Subject
Arbitrary
Measurement Point
Video terminal of A/V jack
(75
(75
Ω 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)
Checking method:
Order Page Address Data
Procedure
1
Check that the SYNC level
(A) satisfies the specified
value.
(A) satisfies the specified
value.
2
Check that the burst level (B)
satisfies the specified value.
satisfies the specified value.
Fig. 6-3-9
H
B
A
5.
Hi8/Standard8 Y/C Output Level Setting
RadarW
RadarW
RadarW
RadarW
RadarW
(VC-305 board)
Set the Y/C signal output level during Hi8/Standard8 playback
mode.
mode.
Mode
VTR stop
Signal
No signal
Adjustment Page
C
Adjustment Address
73, 74
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
Perform this adjustment when IC2201 or IC4502 is re-
placed.
placed.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
D
10
02
Press PAUSE button.
3
3
9E
01
4
3
A4
Check the data.
When the data is “53”, proceed
to step 5.
When the data is “03”, proceed
to step 8.
When the data is “53”, proceed
to step 5.
When the data is “03”, proceed
to step 8.
5
C
73
Set the following data and
press PAUSE button.
69: NTSC model
65: PAL model
press PAUSE button.
69: NTSC model
65: PAL model
6
C
74
Set the following data and
press PAUSE button.
64: NTSC model
72: PAL model
press PAUSE button.
64: NTSC model
72: PAL model
7
Proceed to step 10.
8
C
73
A0
Press PAUSE button.
9
C
74
Set the following data and
press PAUSE button.
AA: NTSC model
B8: PAL model
press PAUSE button.
AA: NTSC model
B8: PAL model
10
3
9E
00
11
D
10
00
Press PAUSE button.
12
0
01
00
6-56
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
6.
Hi8/Standard8 AFC f
0
Adjustment
RadarW
RadarW
RadarW
RadarW
RadarW
(VC-305 board)
Adjust the pull-in range of the clock generator (IC2201) for A/D
conversion during Hi8/Standard8 playback.
conversion during Hi8/Standard8 playback.
Mode
VTR stop
Signal
No signal
Measurement Point
Displayed data of page: 3, address:
9D
9D
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
72
Specified value
The data of page: 3, address: 9D is
“7C” to ”84”.
“7C” to ”84”.
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
72
50
Press PAUSE button.
3
D
10
02
Press PAUSE button.
4
3
0D
04
Press PAUSE button.
5
3
93
04
6
3
9E
01
7
0
FF
31
8
3
2C
Set the bit value of bit1 to “0”.
(Note 2)
(Note 2)
9
Wait for 1 second.
10
3
2C
Set the bit value of bit1 to “1”.
(Note 2)
(Note 2)
11
0
FF
00
12
Wait for 1.5 second.
13
3
01
60
Press PAUSE button. (Note 3)
14
3
02
Check the data changes to
“00”.
“00”.
15
3
03
Check the data is “00”.
16
3
9D
Check that the data satisfied
the specified value.
the specified value.
17
3
0D
00
Press PAUSE button.
18
3
93
00
19
3
9E
00
20
D
10
00
Press PAUSE button.
21
0
01
00
Note 2:
For the bit value, refer to “6-4. SERVICE MODE”, “4-3.
3. Bit Value Discrimination”.
3. Bit Value Discrimination”.
Note 3:
The adjustment data will be automatically input to page:
C, address: 72.
C, address: 72.
6-57
COVER
COVER
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
1. Hi8/Standard8 AFM BPF f
0
Adjustment (VC-305 board)
Sets the BPF passing frequency of IC5401 so that the AFM signal
can separate from the playback RF signal properly. If deviated.
the mono/stereo mode will be differentiated incorrectly, and noises
and distortions will increase during high volume playback.
can separate from the playback RF signal properly. If deviated.
the mono/stereo mode will be differentiated incorrectly, and noises
and distortions will increase during high volume playback.
Mode
Playback
Signal
Hi8/Standard alignment tape:
For BPF adjustment
(WR5-11NS (NTSC))
(WR5-11CS (PAL))
(WR5-11NS (NTSC))
(WR5-11CS (PAL))
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Distortion meter
Adjustment Page
C
Adjustment Address
78
Specified Value
The Main and Sub channel distortion
rate should be almost the same
(within
rate should be almost the same
(within
± 1%) and minimum.
Note:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Set the Hi-Fi sound switch (menu display) to “2”.
3) Select page: C, address: 78, change the data and minimize the
1) Select page: 0, address: 01, and set data: 01.
2) Set the Hi-Fi sound switch (menu display) to “2”.
3) Select page: C, address: 78, change the data and minimize the
distortion rate.
4) Press the PAUSE button of the adjustment remote commander.
5) Set the Hi-Fi sound switch (menu display) to “1”.
6) Select page: C, address: 78, change the data and minimize the
5) Set the Hi-Fi sound switch (menu display) to “1”.
6) Select page: C, address: 78, change the data and minimize the
distortion rate.
7) Press the PAUSE button of the adjustment remote commander.
8) Repeat steps 2) to 7) and set the data of address: 78 so that the
8) Repeat steps 2) to 7) and set the data of address: 78 so that the
distortions rates when the Hi-Fi sound switch is set to “2” and
set to “1” respectively are almost the same and minimum.
set to “1” respectively are almost the same and minimum.
9) Press the PAUSE button of the adjustment remote commander.
10) Select page: 0, address: 01, and set data: 00.
11) Set the Hi-Fi sound switch to “STEREO”.
10) Select page: 0, address: 01, and set data: 00.
11) Set the Hi-Fi sound switch to “STEREO”.
3-5.
AUDIO SYSTEM ADJUSTMENTS
Before performing the audio system adjustments, check that the
data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set data “00”.
data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set data “00”.
[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. 6-3-10.
the video system measuring instruments as shown in Fig. 6-3-10.
[Adjustment Procedure]
1) Hi8/Standard8 AFM BPF f
0
adjustment
2) Hi8/Standard8 AFM 1.5 MHz deviation adjustment
3) Hi8/Standard8 AFM 1.7 MHz deviation adjustment
4) Digital8 playback level check
5) Overall level characteristics check
6) Overall distortion check
7) Overall noise level check
8) Overall separation check
3) Hi8/Standard8 AFM 1.7 MHz deviation adjustment
4) Digital8 playback level check
5) Overall level characteristics check
6) Overall distortion check
7) Overall noise level check
8) Overall separation check
Fig. 6-3-10
Audio
oscillator
Attenuator
600
Ω
600
Ω
(270
Ω
(1-249-410-11) +330
Ω
(1-249-411-11))
Main unit
Main unit
47 k
Ω
47 k
Ω
: 1-249-437-11
Audio level meter or
distortion meter
TV monitor
MIC jack
A/V jack
Left
Right
Video
Audio (L)
Audio (R)
In Recording
In Playback
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