Sony DCR-TRV940 / DCR-TRV940E / DCR-TRV950 / DCR-TRV950E (serv.man4) Service Manual ▷ View online
DCR-TRV940/TRV940E/TRV950/TRV950E
6-50
COVER
COVER
6-3. VIDEO SECTION ADJUSTMENTS
NTSC model :
DCR-TRV940/TRV950
PAL model :
DCR-TRV940E/TRV950E
3-1.
PREPARATIONS BEFORE ADJUSTMENTS
(VIDEO SECTION)
(VIDEO SECTION)
Use the following measuring instruments for video section adjust-
ments.
ments.
3-1-1.
Equipment Required
1)
TV monitor
2)
Oscilloscope (dual-phenomenon, band above 30 MHz with
delay mode) (Unless specified otherwise, use a 10 : 1 probe.)
delay mode) (Unless specified otherwise, use a 10 : 1 probe.)
3)
Frequency counter
4)
Pattern generator with video output terminal.
5)
Digital voltmeter
6)
Audio generator
7)
Audio level meter
8)
Audio distortion meter
9)
Audio attenuator
10) Regulated power supply
11) Alignment tapes
11) Alignment tapes
• Tracking standard (XH2-1)
Parts code: 8-967-997-01
• SW/OL standard (XH2-3)
Parts code: 8-967-997-11
• Audio operation check for NTSC (XH5-3)
Parts code: 8-967-997-51
• System operation check for NTSC (XH5-5)
Parts code: 8-967-997-61
• Audio operation check for PAL (XH5-3P)
Parts code: 8-967-997-55
• System operation check for PAL (XH5-5P)
Parts code: 8-967-997-66
12) Adjustment remote commander (J-6082-053-B)
13) CPC-8 jig (J-6082-388-A)
13) CPC-8 jig (J-6082-388-A)
DCR-TRV940/TRV940E/TRV950/TRV950E
6-51
3-1-2.
Precautions on Adjusting
1) This set is adjusted in two modes, VTR mode and CAMERA
mode.
To activate the VTR mode, set the POWER switch to the
“VIDEO” position, or select the “Forced VTR Power ON
Mode” with the adjusting remote commander. (Note 1)
To activate the CAMERA mode, set the POWER switch to the
“CAMERA” position, or select the “Forced CAMERA Power
ON Mode” with the adjusting remote commander. (Note 2)
After the adjustment finished, be sure to cancel the “Forced
VTR Power ON Mode” or “Forced CAMERA Power ON
Mode”. (Note 4)
To activate the VTR mode, set the POWER switch to the
“VIDEO” position, or select the “Forced VTR Power ON
Mode” with the adjusting remote commander. (Note 1)
To activate the CAMERA mode, set the POWER switch to the
“CAMERA” position, or select the “Forced CAMERA Power
ON Mode” with the adjusting remote commander. (Note 2)
After the adjustment finished, be sure to cancel the “Forced
VTR Power ON Mode” or “Forced CAMERA Power ON
Mode”. (Note 4)
2) The VTR can be operated even if the cabinet (R) (operation
switch (CK-116 board), LCD block) is removed. However, the
lithium 3V power is removed if the cabinet (R) is removed
(CN5203 on the CK-116 board is disconnected), causing the
data such as date and time, user set menu, etc. to be cleared.
These data must be re-set after the adjustment finished. The
diagnostic data and log data (drum running hours, user first
power ON date, last dew date) are saved even if the lithium 3V
power is removed. When the cabinet (R) is removed, discon-
nect the following connector:
lithium 3V power is removed if the cabinet (R) is removed
(CN5203 on the CK-116 board is disconnected), causing the
data such as date and time, user set menu, etc. to be cleared.
These data must be re-set after the adjustment finished. The
diagnostic data and log data (drum running hours, user first
power ON date, last dew date) are saved even if the lithium 3V
power is removed. When the cabinet (R) is removed, discon-
nect the following connector:
1. CK-116 board CN5203 (60P, 0.5mm)
3) The VTR can be operated even if the front panel block (MA-
410 board, focus ring, micro unit) is removed. When the front
panel block is removed, disconnect the following connectors:
panel block is removed, disconnect the following connectors:
1. MA-410 board CN5906 (33P, 0.5mm)
2. MA-410 board CN5904 (8P, 0.5mm)
2. MA-410 board CN5904 (8P, 0.5mm)
4) The BT-003 board (DCR-TRV950/TRV950E only) and the
flash unit need not be connected. If removed, disconnect the
following connectors:
following connectors:
1. BT-003 board CN101 (15P, 0.3mm) (DCR-TRV950/
TRV950E only)
2. BT-003 board CN102 (Bluetooth antenna terminal)
(DCR-TRV950/TRV950E only)
3. DB-014 board CN1010 (23P, 0.3mm)
5) The view finder block (LB-080 board) and the intelligent ac-
cessory shoe need not be connected. If removed, disconnect
the following connectors:
the following connectors:
1. DB-014 board CN7211 (21P, 0.3mm)
2. DB-014 board CN7205 (27P, 0.3mm)
2. DB-014 board CN7205 (27P, 0.3mm)
6) The lens block (CD-389 board) need not be connected. If re-
moved, disconnect the following connectors:
1. VC-288 board CN1201 (60P, 0.5mm)
2. DB-014 board CN1501 (10P, 0.5mm)
3. DB-014 board CN1004 (39P, 0.3mm)
2. DB-014 board CN1501 (10P, 0.5mm)
3. DB-014 board CN1004 (39P, 0.3mm)
7) With the “forced power ON mode” activated, the VTR can be
operated even if the operation switch block (PS-1870) is re-
moved. If removed, disconnect the following connector:
moved. If removed, disconnect the following connector:
1. DB-014 board CN7201 (6P, 0.5mm)
Note 1:
Setting the “Forced VTR Power ON” mode (VTR mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 02, and press
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 02, and press
the PAUSE button of the adjustment remote com-
mander.
The above procedure will enable the VTR power to
be turned on with the power switch (PS-1870 block)
removed.
After completing adjustments, be sure to exit the
“Forced VTR Power ON mode”.
mander.
The above procedure will enable the VTR power to
be turned on with the power switch (PS-1870 block)
removed.
After completing adjustments, be sure to exit the
“Forced VTR Power ON mode”.
Note 2:
Setting the “Forced Camera Power ON” mode (Camera
mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 01, and press
mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 01, and press
the PAUSE button of the adjustment remote com-
mander.
The above procedure will enable the camera power
to be turned on with the power switch (PS-1870
block) removed.
After completing adjustments, be sure to exit the
“Forced Camera Power ON mode”.
mander.
The above procedure will enable the camera power
to be turned on with the power switch (PS-1870
block) removed.
After completing adjustments, be sure to exit the
“Forced Camera Power ON mode”.
Note 3:
Setting the “Forced Memory Power ON” mode (Memory
mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 05, and press
mode)
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 05, and press
the PAUSE button of the adjustment remote com-
mander.
The above procedure will enable the memory power
to be turned on with the power switch (PS-1870
block) removed.
After completing adjustments, be sure to exit the
“Forced Memory Power ON mode”.
mander.
The above procedure will enable the memory power
to be turned on with the power switch (PS-1870
block) removed.
After completing adjustments, be sure to exit the
“Forced Memory Power ON mode”.
Note 4:
Exiting the “Forced Power ON” mode
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 00, and press
1) Select page: 0, address: 01, and set data: 01.
2) Select page: D, address: 10, set data: 00, and press
the PAUSE button of the adjustment remote com-
mander.
mander.
3) Select page: 0, address: 01, and set data: 00.
DCR-TRV940/TRV940E/TRV950/TRV950E
6-52
1
19
CN1008
2
20
3-1-3.
Adjusting Connectors
Some of the adjusting points of the video section are concentrated
at VC-288 board CN1008. Connect the measuring instruments via
the CPC-8 jig (J-6082-388-A). The following table lists the pin
numbers and signal names of CN1008.
at VC-288 board CN1008. Connect the measuring instruments via
the CPC-8 jig (J-6082-388-A). The following table lists the pin
numbers and signal names of CN1008.
Pin No. Signal Name
Pin No. Signal Name
1
N.C.
2
D_2.8V
3
EVF_LED_DA
4
EVF_VG
5
EVF_VCO
6
GND
7
MD2
8
XCS_MC_FLASH
9
XINIT
10
XCS_ST_IMAGE_IC
11
DRUM_ON
12
FRRV
13
REC_CRRT1
14
REC_CRRT0
15
REG_GND
16
HI_XRESET
17
SWP
18
RF_IN
19
GND
20
RF_MON
Table 6-3-1
3-1-4.
Connecting the Equipment
Connect the measuring instruments as shown in Fig. 6-3-2, and
perform the adjustments.
perform the adjustments.
Adjustment
remote
commander
LANC jack
Main unit
AUDIO/VIDEO jack
TV monitor
VIDEO
(Yellow)
(Yellow)
AUDIO L (White)
AUDIO R (Red)
Fig. 6-3-1
Fig. 6-3-2
DCR-TRV940/TRV940E/TRV950/TRV950E
6-53
3-1-5.
Alignment Tapes
Use the alignment tapes shown in the following table.
Use tapes specified in the signal column of each adjustment.
Use tapes specified in the signal column of each adjustment.
Fig. 6-3-3 shows the 75% color bar signals recorded on the align-
ment tape for Audio Operation Check.
ment tape for Audio Operation Check.
Note:
Measure with video terminal (Terminated at 75
Ω
)
Name
Tracking standard (XH2-1)
SW/OL standard (XH2-3)
Audio operation check
(XH5-3 (NTSC), XH5-3P
(PAL))
(XH5-3 (NTSC), XH5-3P
(PAL))
System operation check
(XH5-5 (NTSC), XH5-5P
(PAL))
(XH5-5 (NTSC), XH5-5P
(PAL))
Use
Tape path adjustment
Switching position adjust-
ment
ment
Audio system adjustment|
Operation check
For NTSC model
For PAL model
Color bar signal waveform
Color bar pattern
Color bar signal waveform
Color bar pattern
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%)
Y
e
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
Fig. 6-3-3. Color bar signal of alignment tapes
3-1-6.
Input/Output Level and Impedance
S video input/output
4-pin mini DIN
Luminance signal: 1 Vp-p,
75
4-pin mini DIN
Luminance signal: 1 Vp-p,
75
Ω
(ohms), unbalanced, sync
negative
Chrominance signal:
DCR-TRV940/TRV950: 0.286 Vp-p
DCR-TRV940E/TRV950E: 0.3 Vp-p
75
Chrominance signal:
DCR-TRV940/TRV950: 0.286 Vp-p
DCR-TRV940E/TRV950E: 0.3 Vp-p
75
Ω
(ohms), unbalanced
A/V (Audio/Video) input/output
AV MINI JACK, input/output
auto switch
Video signal: 1 Vp-p, 75
AV MINI JACK, input/output
auto switch
Video signal: 1 Vp-p, 75
Ω
(ohms),
unbalanced, sync negative
Audio signal: 327 mV, (at output
impedance more than 47 k
Audio signal: 327 mV, (at output
impedance more than 47 k
Ω
(kilohms) )
Input impedance with more than
47 k
47 k
Ω
(kilohms)
Output impedance with less than
2.2 k
2.2 k
Ω
(kilohms)
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