Sony DCR-TRV140 Service Manual ▷ View online
5-34
DCR-TRV140
5-3. VIDEO SECTION ADJUSTMENT
3-1.
PREPARATIONS BEFORE ADJUSTMENTS
Use the following measuring instruments for video section adjust-
ments.
ments.
Note:
NTSC model: DCR-TRV140/TRV140M
PAL model: DCR-TRV140E
PAL model: DCR-TRV140E
3-1-1. Equipment to Required
1) TV monitor
2) Oscilloscope (dual-phenomenon, band width above 30 MHz
2) Oscilloscope (dual-phenomenon, band width above 30 MHz
with delay mode) (Unless specified otherwise, use a 10 : 1
probe)
probe)
3) Frequency counter
4) Digital voltmeter
5) Audio level meter
6) Regulated power supply
7) Digital8 alignment tapes
4) Digital voltmeter
5) Audio level meter
6) Regulated power supply
7) Digital8 alignment tapes
• SW/OL standard (WR5-2D)
Parts code: 8-967-993-22
• Audio operation check for NTSC (WR5-3ND)
Parts code: 8-967-993-32
• System operation check for NTSC (WR5-5ND)
Parts code: 8-967-993-42
• Audio operation check for PAL (WR5-3CD)
Parts code: 8-967-993-37
• System operation check for PAL (WR5-5CD)
Parts code: 8-967-993-47
8) Adjustment remote commander (J-6082-053-B)
9) CPC-jig (J-6082-539-A)
9) CPC-jig (J-6082-539-A)
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DCR-TRV140
3-1-2.
Precautions on Adjusting
1) Connect the adjustment remote commander to CN1011 of VC-
273 board via CPC-jig (J-6082-539-A). To operate the adjust-
ment remote commander, connect the AC power adapter to
the DC IN jack of CPC-jig, or connect the L series Info-
LITHIUM battery to the battery terminal of CPC-jig.
ment remote commander, connect the AC power adapter to
the DC IN jack of CPC-jig, or connect the L series Info-
LITHIUM battery to the battery terminal of CPC-jig.
2) The adjustments of this unit are performed in the VTR mode
or camera mode.
To set to the VTR mode, set the power switch to “VCR or
PLAYER” or set the “Forced VTR Power ON mode” using the
adjustment remote commander (Note 1).
To set to the Camera mode, set the power switch to “CAM-
ERA” or set the “Forced Camera Power ON mode” using the
adjustment remote commander (Note 2).
After completing adjustments, be sure to exit the “Forced VTR
Power ON Mode” or “Forced Camera Power ON Mode”. (Note
3).
To set to the VTR mode, set the power switch to “VCR or
PLAYER” or set the “Forced VTR Power ON mode” using the
adjustment remote commander (Note 1).
To set to the Camera mode, set the power switch to “CAM-
ERA” or set the “Forced Camera Power ON mode” using the
adjustment remote commander (Note 2).
After completing adjustments, be sure to exit the “Forced VTR
Power ON Mode” or “Forced Camera Power ON Mode”. (Note
3).
3) The front panel block (SI-033 board, microphone unit, video
light) need not be connected. To remove, disconnect the fol-
lowing connector.
lowing connector.
SI-033 board CN752 (16P 0.5mm)
4) As removing the cabinet (R) assembly (removing CN1007 of
the VC-273 board) means removing the lithium 3 V power
supply (CF-2000 block BT001), data such as date, time, user-
set menus will be lost. After completing adjustments, reset these
data. If the cabinet (R) assembly has been removed, the self-
diagnosis data, data on history of use (total drum rotation time
etc.) will be lost. Before removing, note down the self-diag-
nosis data (data of page: 2, address: B0 to C6) and the data on
history use (data of page: 2, address: A2 to AA and E0 to E2).
(Refer to “5-4.Service Mode”.)
supply (CF-2000 block BT001), data such as date, time, user-
set menus will be lost. After completing adjustments, reset these
data. If the cabinet (R) assembly has been removed, the self-
diagnosis data, data on history of use (total drum rotation time
etc.) will be lost. Before removing, note down the self-diag-
nosis data (data of page: 2, address: B0 to C6) and the data on
history use (data of page: 2, address: A2 to AA and E0 to E2).
(Refer to “5-4.Service Mode”.)
5) The cabinet (R) assembly (CF-2000 block, LCD block) need
not be connected to operate the VTR block. (Note 4) When
removing the cabinet (R) assembly, disconnect the following
connectors.
removing the cabinet (R) assembly, disconnect the following
connectors.
1. VC-273 board CN1007 (22P, 0.5mm)
2. VC-273 board CN1003 (20P, 0.8mm)
2. VC-273 board CN1003 (20P, 0.8mm)
6) The lens block (CD-353 board) need not be connected. To re-
move, disconnect the following connectors.
1. VC-273 board CN1501 (14P, 0.5mm)
2. VC-273 board CN1551 (24P, 0.5mm)
2. VC-273 board CN1551 (24P, 0.5mm)
7) The EVF block (VF-150 board and LB-073 board) need not
be connected. To remove, disconnect the following connec-
tors.
tors.
VC-273 board CN1005 (20P, 0.5mm)
8) By setting the “Forced VTR Power ON mode” or “Forced Cam-
era Power ON mode”, the video section can be operate even if
the control switch block (SS-2000) has been removed. When
removing the control switch block (SS-2000), disconnect the
following connector.
the control switch block (SS-2000) has been removed. When
removing the control switch block (SS-2000), disconnect the
following connector.
VC-273 board CN1009 (5P 0.8mm)
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.
The above procedure will enable the VTR power to be
turned on with the control switch block (SS-2000) re-
moved.
After completing adjustments, be sure to exit the “Forced
VTR Power ON mode”.
turned on with the control switch block (SS-2000) re-
moved.
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.
The above procedure will enable the camera power to be
turned on with the control switch block (SS-2000) re-
moved.
After completing adjustments, be sure to exit the “Forced
Camera Power ON mode”.
turned on with the control switch block (SS-2000) re-
moved.
After completing adjustments, be sure to exit the “Forced
Camera Power ON mode”.
Note 3:
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.
3) Select page: 0, address: 01, and set data: 00.
Note 4:
When the CF-2000 block is removed, the VTR does an
unusual movement for one after the power is turned on.
unusual movement for one after the power is turned on.
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DCR-TRV140
3-1-3. Adjusting Connectors
Some of the adjusting points of the video section are concentrated
at VC-273 board CN1011. Connect the measuring instruments via
the CPC-jig (J-6082-539-A). The following table lists the test point
of CPC-jig.
at VC-273 board CN1011. Connect the measuring instruments via
the CPC-jig (J-6082-539-A). The following table lists the test point
of CPC-jig.
Table 5-3-1
3-1-4. Connecting the Equipment
Connect the measuring instruments as shown in Fig. 5-3-2 and
perform the adjustments.
perform the adjustments.
Fig. 5-3-1
Connecting the TV Monitor and Adjustment Remote Commander
Fig. 5-3-2
Pin No.
Signal Name
Pin No.
Signal Name
N.C
BL
15
EVF VCO
14
EVF VG
N.C
BL 4.75
9
PB RF (MON)
3 (N.C)
BPF MONI
6, 8, 10,
GND
N.C
TMS
7 (N.C)
REC RF (RF IN)
N.C
TDI
N.C
TDO
5
SWP
N.C
TCK
4 (N.C)
CAP FG
2 (N.C)
IR VIDEO
Note:
Pin No. are those of CN1011 on VC-273 board.
Conductor side
CN1011
16
1
Note:
Use either the AC power adaptor or the InfoLITHIUM battery as the power supply of the CPC-jig.
L series
Info LITHIUM
battery
(7.2 Vdc)
Info LITHIUM
battery
(7.2 Vdc)
Video
(yellow)
(yellow)
Color monitor
Vectorscope
Terminated
75
Ω
Audio L (white)
Audio R (red)
MAIN UNIT
A/V OUT jack
VC-273 BOARD
CN1011
CN1011
CPC jig (Note)
(J-6082-539-A)
(J-6082-539-A)
AC power adaptor
Adjustment
remote commander
remote commander
LANC
jack
jack
5-37
DCR-TRV140
3-1-5. Alignment Tape
The following table lists alignment tapes which are available.
Use the tape specified in the signal column for each adjustment. If
the type of tape to be used for checking operations is not speci-
fied, use whichever type.
Use the tape specified in the signal column for each adjustment. If
the type of tape to be used for checking operations is not speci-
fied, use whichever type.
Fig. 5-3-3 Shows the color bar signals recorded on the alignment
tape.
tape.
Note:
Measure using the VIDEO terminal (Terminated at 75
Ω
).
Table 5-3-2
Fig. 5-3-3 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%)
Y
ello
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
S video 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)
Digital8 alignment tape
Name
Usage
SW/OL standard (WR5-2D) Switching position adjustment
Audio operation check
WR5-3ND (NTSC)
Audio system adjustment
WR5-3CD (PAL)
System operation check
WR5-5ND (NTSC)
Operation check
WR5-5CD (PAL)
Audio/Video output
AV MINIJACK
Video
Video
1 Vp-p, 75
Ω
, unbalanced, sync negative
Audio
327 mV, (at load impedance 47 k
Ω
)
Output impedance less than 2.2 k
Ω
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