DOWNLOAD Sony DCR-TRV140 Service Manual ↓ Size: 13.7 MB | Pages: 127 in PDF or view online for FREE

Model
DCR-TRV140
Pages
127
Size
13.7 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / BRAZIL
File
dcr-trv140.pdf
Date

Sony DCR-TRV140 Service Manual ▷ View online

5-42
DCR-TRV140
4. Switching Position Adjustment (VC-273 board)
RadarW
RadarW
RadarW
To obtain normal playback waveform output, adjust the switching
position.
Mode
VTR playback
Signal
Digital 8 alignment tape: SW/OL
standard (WR5-2D)
Measurement Point
Displayed data of page: 3, address:
03
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
10, 11, 12, 13
Specified value
The data of page: 3, address: 03 is
“00”
Adjusting method:
Order Page Address Data
Procedure
1
Insert the SW/OL standard
tape and enter the VTR stop
mode.
2
0
01
01
3
3
21
Check the data is “02”.
(Note 1)
4
3
01
0D
Press PAUSE button.
5
3
02
Check the data changes to
“00”.
6
3
03
Check the data is “00”.
(Note 2, 3)
7
3
21
Check the data is not “62”.
(Note 4)
8
C
10
Check the data is not “E7” or
more. (Note 5)
9
0
01
00
Note 1:
If the data is “72”, the tape top being played.
After playing the tape for 1 to 2 seconds, stop it, and
perform step 4 and higher.
If the data is “62”, the tape end being played. After re-
wind the tape, and perform step 4 and higher.
Note 2:
If bit0 of the data is “1”, the A channel is defective.
If bit1 of the data is “1”, the B channel is defective.
Contents of the defect is see written into page: C, ad-
dress: 10 and 12. See following table.
(For the bit values, refer to “5-4. SERVICE MODE”,
“4-3. 3. Bit value discrimination”.)
If bit3 of the data is “1”, the tape end being played. After
rewind the tape, and repeat steps 3 to 6.
Note 3:
If bit0 or bit1 of the data is “1”, only once, select page:
C, address 21, set data: 10, press the PAUSE button, and
repeat steps 3 to 6.
Note 4:
If the data is “62”, after rewind the tape, and repeat steps
1 to 7.
Note 5:
If the data is “E7” or more, adjustment has errors, and
repeat steps 1 to 8.
When the A channel is defective
Data of page: C,
Contents of defect
address: 10
EE
Writing into EEPROM (IC4502) is
defective
E8
Adjustment data is out of range
E7
No data is returned from IC3301
 (CAIN)
When the B channel is defective
Data of page: C,
Contents of defect
address: 12
E8
Adjustment data is out of range
E7
No data is returned from IC3301
 (CAIN)
5-43
DCR-TRV140
5. AGC Center Level Adjustment (VC-273 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Mode
CAMERA record and VTR playback
Subject
Arbitrary
Measurement Point
CH1: PB RF (MON) (Pin 9 of
CN1011) (Note 1)
CH2 (Trigger): SWP (Pin 5 of
CN1011)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
1E
Specified value
The data of page: 3, address: 03 is
“00”
Note 1:
Connect a 75 
 resistor between PB RF (MON) and GND
of CPC-jig.
Note 2:
Use a Hi8 MP tape.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
2A
C8
Press PAUSE button.
3
Record camera signal for 1
minute, and rewind the tape.
4
2
2E
01
5
3
33
08
6
Playback the recorded
segment at step 3.
7
Confirm that the playback
RF signal is stable.
8
3
01
23
Press PAUSE button.
9
3
02
Check the data changes to
“00”
10
3
03
Check the data is “00”.
(Note 3)
11
3
33
00
12
2
2E
00
13
8
2A
00
Press PAUSE button.
14
0
01
00
Note 3:
 If the data is other than “00”, adjustment has errors.
Fig. 5-3-4
13.3 msec
PB RF signal is stable
SWP
PB RF
(MON)
5-44
DCR-TRV140
6. APC & AEQ Adjustment (VC-273 board) 
RadarW
RadarW
RadarW
RadarW
RadarW
Mode
CAMERA record and VTR playback
Subject
Arbitrary
Measurement Point
CH1: PB RF (MON) (Pin 9 of
CN1011) (Note 1)
CH2 (Trigger): SWP (Pin 5 of
CN1011)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
18, 19, 1B, 1C, 21, 2C
Specified value
The data of page: 3, address: 03 is
“00”
Note 1:
Connect a 75 
  resistor between PB RF (MON) and
GND of CPC-jig.
Note 2:
Use a Hi8 MP tape.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
8
2A
C8
Press PAUSE button.
3
Record camera signal for 1
minute, and rewind the tape.
4
C
18
20
Press PAUSE button.
5
C
19
20
Press PAUSE button.
6
C
1B
25
Press PAUSE button.
7
C
1C
25
Press PAUSE button.
8
C
21
CA
Press PAUSE button.
9
C
2C
03
Press PAUSE button.
10
2
2E
01
11
3
33
08
12
Playback the recorded
segment at step 3.
13
Confirm that the playback
RF signal is stable.
14
3
01
07
Press PAUSE button.
15
3
02
Check the data changes to
“00”
16
3
03
Check the data is “00”.
(Note 3)
17
3
33
00
18
2
2E
00
19
8
2A
00
Press PAUSE button.
20
0
01
00
Note 3:
 If the data is other than “00”, adjustment has errors.
Fig. 5-3-5
13.3 msec
PB RF signal is stable
SWP
PB RF
(MON)
5-45
DCR-TRV140
7. PLL f
0
 & LPF f
0
 Final Adjustment (VC-273 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Mode
VTR stop
Signal
Arbitrary
Measurement Point
Displayed data of page: 3, address:
02 and 03
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
1F, 20, 22, 29
Specified value
The data of page: 3, address: 02 is “00”
The data of page: 3, address: 03 is “00”
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
3
01
30
Press PAUSE button.
3
3
02
Check the data changes to
“00” within 10 seconds.
(Note 1)
4
3
03
Check the data is “00”.
(Note 2)
5
0
01
00
Note 1:
If the data is not changes to “00” within 10 seconds,
adjustment has errors.
Note 2:
If the data is other value, adjustment has errors.
For the error contents, see the following table.
(For the bit values, refer to “5-4. SERVICE MODE”,
“4-3. 3. Bit value discrimination”.)
Bit value of page: 3,
Error contents
address: 03 data
bit 6 = 1
LPF f
0
 adjustment is defective
bit 2 = 1 or bit 3 = 1
PLL f
0
, fine adjustment is defective
bit 4 = 1 or bit 5 = 1
PLL f
0
, adjustment is defective
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