Sony DCR-TRV345E / DCR-TRV350 / DCR-TRV351 / DCR-TRV355E / DCR-TRV356E (serv.man4) Service Manual ▷ View online
6-58
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
2. Hi8/Standard8 AFM 1.5 MHz Deviation Adjustment
(VC-305 board)
Adjust to the optimum 1.5 MHz audio FM signal deviation.
If the adjustment is not correct, its playback level will differ from
that of other units.
If the adjustment is not correct, its playback level will differ from
that of other units.
Mode
Playback
Signal
Hi8/Standard8 alignment tape:
For checking AFM stereo operation
Monoscope section
(WR5-9NS (NTSC))
(WR5-9CS (PAL))
Monoscope section
(WR5-9NS (NTSC))
(WR5-9CS (PAL))
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Adjustment Page
C
Adjustment Address
76
Specified Value
–7.5
± 2.0 dBs
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 “1”.
3) Select page: C, address: 76, change the data and set the 400
1) Select page: 0, address: 01, and set data: 01.
2) Set the Hi-Fi sound switch (menu display) to “1”.
3) Select page: C, address: 76, change the data and set the 400
Hz signal level to the specified value.
4) Press the PAUSE button.
5) Set the Hi-Fi sound switch (menu display) to “STEREO”.
6) Select page: 0, address: 01, and set data: 00.
5) Set the Hi-Fi sound switch (menu display) to “STEREO”.
6) Select page: 0, address: 01, and set data: 00.
3. Hi8/Standard8 AFM 1.7 MHz Deviation Adjustment
(VC-305 board)
Adjust to the optimum 1.7 MHz audio FM signal deviation.
If improper, this causes deteriorated separation (with stereo sig-
nal).
If improper, this causes deteriorated separation (with stereo sig-
nal).
Mode
Playback
Signal
Hi8/Standard8 alignment tape:
For checking AFM stereo operation
Monoscope section
(WR5-9NS (NTSC))
(WR5-9CS (PAL))
Monoscope section
(WR5-9NS (NTSC))
(WR5-9CS (PAL))
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
77
Specified Value
–7.5
± 2.0 dBs
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: 77, change the data and set the 1 kHz
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: 77, change the data and set the 1 kHz
signal level to the specified value.
4) Press the PAUSE button.
5) Set the Hi-Fi sound switch (menu display) to “STEREO”.
6) Select page: 0, address: 01, and set data: 00.
5) Set the Hi-Fi sound switch (menu display) to “STEREO”.
6) Select page: 0, address: 01, and set data: 00.
4. Digital8 Playback Level Check
Mode
VTR playback
Signal
Digital8 alignment tape:
For audio operation check
(WR5-3ND (NTSC))
(WR5-3CD (PAL))
(WR5-3ND (NTSC))
(WR5-3CD (PAL))
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter or oscilloscope
Specified Value
32 kHz mode:
1 kHz, + 3 dBs
1 kHz, + 3 dBs
± 2 dB
(2.46 Vp-p to 3.89 Vp-p)
48 kHz mode:
1 kHz, + 3 dBs
1 kHz, + 3 dBs
± 2 dB
(2.46 Vp-p to 3.89 Vp-p)
44.1 kHz mode (EMP OFF):
7.35 kHz, + 2 dBs
7.35 kHz, + 2 dBs
± 2 dB
(2.19 Vp-p to 3.47 Vp-p)
44.1 kHz mode (EMP ON):
7.35 kHz, – 3.8 dBs to –1.2 dBs
(1.4 Vp-p to 1.9 Vp-p)
7.35 kHz, – 3.8 dBs to –1.2 dBs
(1.4 Vp-p to 1.9 Vp-p)
Checking Method:
1) Check that the playback signal level is the specified value.
1) Check that the playback signal level is the specified value.
5. Overall Level Characteristics Check
Mode
Camera recording and playback
Signal
400 Hz, –66 dBs signal: MIC jack left
and right
and right
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Specified Value
–7.5
± 3.0 dBs
Checking Method:
1) Input the 400 Hz, –66 dBs signal in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the 400 Hz signal level is the specified value.
1) Input the 400 Hz, –66 dBs signal in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the 400 Hz signal level is the specified value.
6. Overall Distortion Check
Mode
Camera recording and playback
Signal
400 Hz, –66 dBs signal: MIC jack left
and right
and right
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio distortion meter
Specified Value
Below 0.4%
(200 Hz to 6 kHz BPF ON)
(200 Hz to 6 kHz BPF ON)
Checking Method:
1) Input the 400 Hz, –66 dBs signal in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the distortion is the specified value.
1) Input the 400 Hz, –66 dBs signal in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the distortion is the specified value.
6-59
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
7. Overall Noise Level Check
Mode
Camera recording and playback
Signal
No signal: Insert a shorting plug in
the MIC jack
the MIC jack
Measurement Point
Audio left or right terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Specified Value
Below –45 dBs
(IHF-A filter ON, 20 kHz LPF ON)
(IHF-A filter ON, 20 kHz LPF ON)
Checking Method:
1) Insert a shorting plug in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the noise level is the specified value.
1) Insert a shorting plug in the MIC jack.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the noise level is the specified value.
8. Overall Separation Check
Mode
Camera recording and playback
Signal
400 Hz, –66 dBs signal: MIC jack
<right> [left]
(Connect the MIC jack <left> [right]
to GND)
<right> [left]
(Connect the MIC jack <left> [right]
to GND)
Measurement Point
Audio <left> [right] terminal of A/V
jack
jack
Measuring Instrument
Audio level meter
Specified Value
Below –40 dBs
< > : Left channel check
[ ] : Right channel check
[ ] : Right channel check
Checking Method:
1) Input the 400 Hz, –66 dBs signal in the <right> [left] terminal
1) Input the 400 Hz, –66 dBs signal in the <right> [left] terminal
of the MIC jack only.
2) Record in the camera mode.
3) Playback the recorded section.
4) Check that the signal level of the audio output <left> [right]
3) Playback the recorded section.
4) Check that the signal level of the audio output <left> [right]
terminal is the specified value.
6-60
COVER
COVER
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
6-4. SERVICE MODE
4-1.
ADJUSTMENT REMOTE COMMANDER
The adjustment remote commander is used for changing the cal-
culation coefficient in signal processing, EVR data, etc. The ad-
justment remote commander performs bi-directional
communication with the unit using the remote commander signal
line (LANC). The resultant data of this bi-directional communica-
tion is written in the non-volatile memory.
culation coefficient in signal processing, EVR data, etc. The ad-
justment remote commander performs bi-directional
communication with the unit using the remote commander signal
line (LANC). The resultant data of this bi-directional communica-
tion is written in the non-volatile memory.
1.
Using the Adjustment Remote Commander
1) Connect the adjustment remote commander to LANC jack.
2) Set the HOLD switch of the adjustment remote commander to
2) Set the HOLD switch of the adjustment remote commander to
“HOLD” (SERVICE position). If it has been properly con-
nected, the LCD on the adjustment remote commander will
display as shown in Fig. 6-4-1.
nected, the LCD on the adjustment remote commander will
display as shown in Fig. 6-4-1.
Fig. 6-4-1
3) Operate the adjustment remote commander as follows.
• Changing the page
The page increases when the EDIT SEARCH+ button is
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 16 pages, from 0 to F.
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 16 pages, from 0 to F.
• Changing the address
The address increases when the FF (M) button is pressed,
and decreases when the REW (m) button is pressed. There
are altogether 256 addresses, from 00 to FF.
and decreases when the REW (m) button is pressed. There
are altogether 256 addresses, from 00 to FF.
• Changing the data (Data setting)
The data increases when the PLAY (N) button is pressed,
and decreases when the STOP (x) button is pressed. There
are altogether 256 data, from 00 to FF.
and decreases when the STOP (x) button is pressed. There
are altogether 256 data, from 00 to FF.
• Writing the adjustment data
The PAUSE button must be pressed to write the adjustment
data in the nonvolatile memory. (The new adjusting data will
not be recorded in the nonvolatile memory if this step is not
performed)
data in the nonvolatile memory. (The new adjusting data will
not be recorded in the nonvolatile memory if this step is not
performed)
4) After completing all adjustments, turn off the main power sup-
ply (8.4 V) once.
Page
Data
Address
2. Precautions Upon Using
the Adjustment Remote Commander
Mishandling of the adjustment remote commander may erase the
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjust-
ments and new adjustment data after each adjustment.
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjust-
ments and new adjustment data after each adjustment.
Hexadecimal
notation
notation
LCD Display
Decimal notation
conversion value
conversion value
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 1 2 3 4 5 6 7 8 9 A b c d E F
0 1 2 3 4 5 6 7 8 9 1011 12 1314 15
6-61
COVER
COVER
DCR-TRV345E/TRV350/TRV351/TRV355E/TRV356E
Hexadecimal-decimal Conversion Table
Lower digit of
hexadecimal
Upper digit
of hexadecimal
of hexadecimal
0
1
2
3
4
5
6
7
8
9
A
(
A
)
B
(
b
)
C
(
c
)
D
(
d
)
E
(
E
)
F
(
F
)
0
1
2
3
4
5
6
7
8
9
A (
A
)
B (
b
)
C (
c
)
D (
d
)
E (
E
)
F (
F
)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
77
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
174
159
175
160
161
162
163
164
165
166
167
168
169
170
171
172
173
177
176
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
0
1
Note:
The characters shown in the parenthesis ( ) shown the display on the adjustment remote commander.
(Example)
If the DDS display or the adjustment remote commander shows BD (
bd
);
Because the upper digit of the adjustment number is B (
b
), and the lower digit is D (
d
), the meeting point
“189” of 1 and 2 in the above table is the corresponding decimal number.
0
2
4-2.
DATA PROCESS
The calculation of the DDS display and the adjustment remote
commander display data (hexadecimal notation) are required for
obtaining the adjustment data of some adjustment items. In this
case, after converting the hexadecimal notation to decimal nota-
tion, calculate and convert the result to hexadecimal notation, and
use it as the adjustment data. Indicates the hexadecimal-decimal
conversion table.
commander display data (hexadecimal notation) are required for
obtaining the adjustment data of some adjustment items. In this
case, after converting the hexadecimal notation to decimal nota-
tion, calculate and convert the result to hexadecimal notation, and
use it as the adjustment data. Indicates the hexadecimal-decimal
conversion table.
Table 6-4-1
Click on the first or last page to see other DCR-TRV345E / DCR-TRV350 / DCR-TRV351 / DCR-TRV355E / DCR-TRV356E (serv.man4) service manuals if exist.