Sony DCR-TRV255E / DCR-TRV260 / DCR-TRV265 / DCR-TRV265E (serv.man3) Service Manual ▷ View online
DCR-TRV255E/TRV260/TRV265/TRV265E
6-35
Fig. 6-3-2 Shows the color bar signals recorded on the alignment
tape.
tape.
Note:
Measure using the VIDEO terminal (Terminated at 75
Ω).
Fig. 6-3-2 Color Bar Signal of the Alignment Tape
1 V
0.714 V
0.286 V
White (75%)
White (100%)
Y
ello
w
Cy
an
Green
Magenta
Red
Blue
Burst signal
0.286 V
Q
I
Horizontal sync signal
(75%)
White
Y
ello
w
Cy
an
Green
Magenta
Red
Blue
Q
I
White
(100%)
Black
1 V
0.7 V
0.3 V
White (100%)
Ye
llo
w
Cy
an
Green
Magenta
Red
Blue
Burst signal
Horizontal sync signal
0.3 V
(100%)
Y
ello
w
Cy
an
Green
Magenta
Red
Blue
White
Blac
k
For NTSC model
For PAL model
Color bar signal waveform
Color bar pattern
Color bar signal waveform
Color bar pattern
3-1-6. Input/output Level and Impedance
Video input/output
Phono jack, 1 Vp-p, 75
Ω, unbalanced, sync negative
S video input/output
4-pin mini DIN
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
Phono jack:
Input: –7.5 dBs, input impedance more than 47 k
Input: –7.5 dBs, input impedance more than 47 k
Ω
Output: –7.5 dBs, (at load impedance 47 k
Ω), output imped-
ance less than 2.2 k
Ω
DCR-TRV255E/TRV260/TRV265/TRV265E
6-36
Page
C
Address
E0, E1, E2, E3, E4
3-2.
SYSTEM CONTROL SYSTEM ADJUSTMENTS
1. Initialization of 8, A, C, D, E, F, 1C, 1F Page Data
If the 8, A, C, D, E, F, 1C, 1F page data is erased due to some
reason, perform “1-2. INITIALIZATION OF 8, A, C, D, E, F, 1C,
1F PAGE DATA ”, of “6-1. CAMERA SECTION ADJUST-
MENTS”
reason, perform “1-2. INITIALIZATION OF 8, A, C, D, E, F, 1C,
1F PAGE DATA ”, of “6-1. CAMERA SECTION ADJUST-
MENTS”
2. Node Unique ID No. Input
Note 1:
Note 1:
Perform “2-2. Input of Serial No.” if the data on page C
has been cleared and the node unique ID No. is not found.
has been cleared and the node unique ID No. is not found.
Note 2:
Check that the data of page: 0, address: 10 is “00”.
2-1. Input of Company ID
Write the company ID to the EEPROM (nonvolatile memory).
Input method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, and enter the following data.
1) Select page: 0, address: 01, and set data: 01.
2) Select page: C, and enter the following data.
Note 3:
Each time the data is set, press the PAUSE button on the
adjusting remote commander.
adjusting remote commander.
Address
Data
E0
08
E1
00
E2
46
E3
01
E4
02
3) Select page: 0, address: 01, and set data: 00.
2-2. Input of Serial No.
Write the serial No. and model code to the EEPROM (nonvola-
tile memory).
In writing the serial No., a decimal number should be converted
into a hexadecimal number.
tile memory).
In writing the serial No., a decimal number should be converted
into a hexadecimal number.
1) Select page: 0, address: 01, and set data: 01.
2) Read the serial No. from the model name label, and it is as-
2) Read the serial No. from the model name label, and it is as-
sumed to be D
1
.
Example: If serial No. is “77881”,
D
1
= 77881
3) From Table 6-3-4, obtain D
2
and H
1
that correspond to D
1
.
Example: If D
1
= 77881,
D
2
= D
1
– 65536 = 12345
H
1
= FE
D
1
(decimal)
D
2
(decimal)
H
1
(hexadecimal)
(Service model code)
00001 to 65535
D
1
FE
65536 to 131071
D
1
– 65536
FE
131072 to196607
D
1
– 131072
FE
196608 to 262143
D
1
– 196608
FE
262144 to 327679
D
1
– 262144
FE
327680 to 393215
D
1
– 327680
FE
393216 to 458751
D
1
– 393216
FE
458752 to 524287
D
1
– 458752
FE
524288 to 589823
D
1
– 524288
FE
589824 to 655359
D
1
– 589824
FE
655360 to 720895
D
1
– 655360
FE
720896 to 786431
D
1
– 720896
FE
786432 to 851967
D
1
– 786432
FE
851968 to 917503
D
1
– 851968
FE
917504 to 983039
D
1
– 917504
FE
983040 to 999999
D
1
– 983040
FE
Table 6-3-4
4) Enter H
1
to address: E5 on page: C.
Example: If H
1
= FE,
select page: C, address: E5, and set data: FE, then press the
PAUSE button.
PAUSE button.
5) From Table 6-3-5, obtain the maximum decimal number less
than D
2
, and it is assumed to be D
3
.
Example: If D
2
= 12345.
D
3
= 12288
6) From Table 6-3-5, obtain a hexadecimal number that corre-
sponds to D
3
, and it is assumed to be H
3
.
Example: If D
3
= 12288,
H
3
= 3000
7) Caluculate D
4
using following equations (decimal
caluculation). (0 D
4
225)
D
4
= D
2
– D
3
Example: If D
2
= 12345 and D
3
= 12288,
D
4
= 12345 – 12288 = 57
8) Convert D
4
into a hexadecimal number to obtain H
4
. (See Table
6-4-1 “Hexadecimal - decimal conversion table” in 6-4. Ser-
vice Mode)
Example: If D
vice Mode)
Example: If D
4
= 57,
H
4
= 39
9) Enter higher two digits of H
3
to address: E6 on page: C.
Example: If H
3
= 3000,
select page: C, address: E6, and set data: 30, then press the
PAUSE button.
PAUSE button.
10) Enter H
4
to address: E7 on page: C.
Example: If H
4
= 39,
select page: C, address: E7, and set data: 39, then press the
PAUSE button.
PAUSE button.
11) Select page: 0, address: 01, and set data: 00.
Page
C
Address
E5, E6, E7
DCR-TRV255E/TRV260/TRV265/TRV265E
6-37
D
3
H
3
D
3
H
3
D
3
0
0000
8192
2000
16384
4000
24576
6000
32768
8000
40960
A000
49152
C000
57344
E000
256
0100
8448
2100
16640
4100
24832
6100
33024
8100
41216
A100
49408
C100
57600
E100
512
0200
8704
2200
16896
4200
25088
6200
33280
8200
41472
A200
49664
C200
57856
E200
768
0300
8960
2300
17152
4300
25344
6300
33536
8300
41728
A300
49920
C300
58112
E300
1024
0400
9216
2400
17408
4400
25600
6400
33792
8400
41984
A400
50176
C400
58368
E400
1280
0500
9472
2500
17664
4500
25856
6500
34048
8500
42240
A500
50432
C500
58624
E500
1536
0600
9728
2600
17920
4600
26112
6600
34304
8600
42496
A600
50688
C600
58880
E600
1792
0700
9984
2700
18176
4700
26368
6700
34560
8700
42752
A700
50944
C700
59136
E700
2048
0800
10240
2800
18432
4800
26624
6800
34816
8800
43008
A800
51200
C800
59392
E800
2304
0900
10496
2900
18688
4900
26880
6900
35072
8900
43264
A900
51456
C900
59648
E900
2560
0A00
10752
2A00
18944
4A00
27136
6A00
35328
8A00
43520
AA00
51712
CA00
59904
EA00
2816
0B00
11008
2B00
19200
4B00
27392
6B00
35584
8B00
43776
AB00
51968
CB00
60160
EB00
3072
0C00
11264
2C00
19456
4C00
27648
6C00
35840
8C00
44032
AC00
52224
CC00
60416
EC00
3328
0D00
11520
2D00
19712
4D00
27904
6D00
36096
8D00
44288
AD00
52480
CD00
60672
ED00
3584
0E00
11776
2E00
19968
4E00
28160
6E00
36352
8E00
44544
AE00
52736
CE00
60928
EE00
3840
0F00
12032
2F00
20224
4F00
28416
6F00
36608
8F00
44800
AF00
52992
CF00
61184
EF00
4096
1000
12288
3000
20480
5000
28672
7000
36864
9000
45056
B000
53248
D000
61440
F000
4352
1100
12544
3100
20736
5100
28928
7100
37120
9100
45312
B100
53504
D100
61696
F100
4608
1200
12800
3200
20992
5200
29184
7200
37376
9200
45568
B200
53760
D200
61952
F200
4864
1300
13056
3300
21248
5300
29440
7300
37632
9300
45824
B300
54016
D300
62208
F300
5120
1400
13312
3400
21504
5400
29696
7400
37888
9400
46080
B400
54272
D400
62464
F400
5376
1500
13568
3500
21760
5500
29952
7500
38144
9500
46336
B500
54528
D500
62720
F500
5632
1600
13824
3600
22016
5600
30208
7600
38400
9600
46592
B600
54784
D600
62976
F600
5888
1700
14080
3700
22272
5700
30464
7700
38656
9700
46848
B700
55040
D700
63232
F700
6144
1800
14336
3800
22528
5800
30720
7800
38912
9800
47104
B800
55296
D800
63488
F800
6400
1900
14592
3900
22784
5900
30976
7900
39168
9900
47360
B900
55552
D900
63744
F900
6656
1A00
14848
3A00
23040
5A00
31232
7A00
39424
9A00
47616
BA00
55808
DA00
64000
FA00
6912
1B00
15104
3B00
23296
5B00
31488
7B00
39680
9B00
47872
BB00
56064
DB00
64256
FB00
7168
1C00
15360
3C00
23552
5C00
31744
7C00
39936
9C00
48128
BC00
56320
DC00
64512
FC00
7424
1D00
15616
3D00
23808
5D00
32000
7D00
40192
9D00
48384
BD00
56576
DD00
64768
FD00
7680
1E00
15872
3E00
24064
5E00
32256
7E00
40448
9E00
48640
BE00
56832
DE00
65024
FE00
7936
1F00
16128
3F00
24320
5F00
32512
7F00
40704
9F00
48896
BF00
57088
DF00
65280
FF00
H
3
D
3
H
3
D
3
H
3
D
3
H
3
D
3
H
3
D
3
H
3
Note:
D
3
: Decimal
H
3
: Hexadecimal
Table 6-3-5
DCR-TRV255E/TRV260/TRV265/TRV265E
6-38
3-3.
SERVO AND RF SYSTEM ADJUSTMENTS
Before perform the servo and RF system adjustments, check that
the specified values of “27MHz Origin Oscillation Adjustment”
of “VIDEO 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”.
the specified values of “27MHz Origin Oscillation Adjustment”
of “VIDEO 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”.
Adjusting procedure:
1. CAP FG/REEL FG duty adjustment
2. Switching position adjustment
3. SD error rate check
1. CAP FG/REEL FG duty adjustment
2. Switching position adjustment
3. SD error rate check
1. CAP FG/REEL FG Duty Adjustment (VC-344 Board)
RadarW
RadarW
RadarW
RadarW
RadarW
Set the CAP FG signal duty cycle to 50% to establish an appropri-
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur in the LP mode.
Compensates the dispersion of the hall elements.
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur in the LP mode.
Compensates the dispersion of the hall elements.
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Measurement Point
Displayed data of page: 3, address:
03
03
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
16, 17, 2F
Specified value
The data of page: 3, address: 03 is
“00”
“00”
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Close the cassette compart-
ment without inserting
cassette.
ment without inserting
cassette.
2
0
01
01
3
3
01
1E
Press PAUSE button.
4
3
02
Check the data changes to
“00”.
“00”.
5
3
03
Check the data is “00”.
(Note 2)
(Note 2)
6
0
01
00
Note 2:
If the data is other value, adjustment has errors.
For the error contents, see the following table.
For the error contents, see the following table.
Data
Error contents
02, 03, 06, 07
T REEL is defective
08, 09, 0C, 0D
S REEL is defective
0A, 0B, 0E, 0F,
T REEL and S REEL are defective
81
CAP FG duty adjustment has error
2. Switching Position Adjustment (VC-344 Board)
RadarW
RadarW
RadarW
RadarW
RadarW
To obtain normal playback waveform output, adjust the switching
position.
position.
Mode
VTR playback (PLAY/EDIT mode)
Signal
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”
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Insert the SW/OL standard
tape and enter the VTR stop
mode.
tape and enter the VTR stop
mode.
2
0
01
01
3
C
10
EE
Press PAUSE button.
4
3
21
Check the data is “02”. (Note 2)
5
3
01
0D
Press PAUSE button.
6
3
02
Check the data changes to “00”.
7
3
03
Check the data is “00”.
(Note 3, 4)
(Note 3, 4)
8
0
01
00
Note 2:
If the data is “72”, the tape top being played. After playing
the tape for 1 to 2 seconds, stop it, perform step 5 and higher.
If the data is “62”, the tape end being played. After rewind
the tape, perform step 5 and higher.
the tape for 1 to 2 seconds, stop it, perform step 5 and higher.
If the data is “62”, the tape end being played. After rewind
the tape, perform step 5 and higher.
Note 3:
If the data is not “00”, select page: C, address: 21 and
take a note of the data. Set data: 10, press the PAUSE
button, then perform the adjustment again.
When the data does not become “00” even if the adjust-
ment has been performed again, set back the data on page:
C, address: 21.
take a note of the data. Set data: 10, press the PAUSE
button, then perform the adjustment again.
When the data does not become “00” even if the adjust-
ment has been performed again, set back the data on page:
C, address: 21.
Note 4:
If bit0 of the data is “1”, the EVEN channel is defective.
If bit1 of the data is “1”, the ODD 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 “6-4. SERVICE MODE”,
“4-3. 3. Bit Value Discrimination”.)
If bit3 of the data is “1”, the tape end being played. After
rewinding the tape, perform the adjustment again.
If bit1 of the data is “1”, the ODD 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 “6-4. SERVICE MODE”,
“4-3. 3. Bit Value Discrimination”.)
If bit3 of the data is “1”, the tape end being played. After
rewinding the tape, perform the adjustment again.
When the EVEN channel is defective
Data of page: C,
Contents of defect
address: 10
EE
Writing into EEP ROM (IC4502) is
defective
defective
E8
Adjustment data is out of range
E7
No data is returned from IC3301
When the ODD 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
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