Adjusting The Sync And Subcarrier Phases Of The Video Signals - Sony DSR-50P Service Manual

a) This includes stop, fast-forward or rewind. If the unit
cannot read the time code on the tape correctly, the
counter displays — —:— —:— —:— — and the time code is
not output from the TC OUT connector.
b) DUB1 , DUP1 and REC1 represent the state of the
unit when you press each of these buttons (AUDIO DUB,
DUP or REC) in the stop mode. If the counter displays
— —:— —:— —:— — , the time code is not output from the TC
OUT connector when you press the AUDIO DUB button
in the stop mode.
c) The time code is also displayed on the time counter
display in the display window.
d) When the DVCAM/DV select switch is set to DV, the
time code generated internally is output.
Chapter 4 Setting the Time Code and Adjusting the Video Signals
Adjusting the Sync and Subcarrier Phases of the
Video Signals
When you adjust the phases of the video signals,
follow the steps below.
A IN
Reference
signal generator
VIDEO OUT2
DSR-50/50P
VIDEO/REF.IN
Performing a phase adjustment operation
1
Press the SCH button on the vectorscope.
The vectorscope switches to SCH mode.
2
Press the B channel button on the vectorscope.
This selects the black burst signal from the
reference signal generator.
3
Press the EXT button on the vectorscope.
This switches the vectorscope to external
synchronization mode.
Chapter 4 Setting the Time Code and Adjusting the Video Signals
Notes on the Time Codes
Time codes output from the unit have the following
restrictions:
¥ The unit outputs an EE signal when it is in recording
or recording pause modes, or when you press the
REC button.
While the unit outputs an EE signal, only the time code
from an external device that is connected to the TC IN
connector will be through-output from the TC OUT
connector when the INPUT SELECT selector is set to
other than DV and TC/UB IN on the TC/UB SET menu
has been set to other than INTERNAL. (The time code
and user bits that are internally generated are not output
from the TC OUT connector.)
In this case, as a result, the time code will not be
output from the TC OUT connector when the time
code is not input from the external device connected
to the TC IN connector.
You need to set TC/UB IN on the TC/UB SET menu
to INTERNAL to output a time code from the TC
OUT connector even if no time code has been input
from an external device connected to the TC IN
connector.
To set the unit to inherit a time code from the external
device even after you set TC/UB IN to INTERNAL
from some other setting, follow the steps below.
1
Match the settings (used when TC/UB IN is set to
INTERNAL) of the unit with the external device
time code format. (See the setting example
below.)
2
After setting TC/UB IN to other than
INTERNAL, input the time code from the
external device connected to the TC IN
connector.
3
Set TC/UB IN on the TC/UB SET menu to
INTERNAL.
4
Disconnect the external device from the TC IN
connector.
Setting example
If the time code setting of the external device is
TC: Drop frame; UB: 12 34 56 78.
This unit menu Setting
TC RUN FREE RUN
TC FORMAT DF
UB PRESET 12 34 56 78
(The TC FORMAT submenu is only for DSR-50.)
63
Vectorscope with SCH mode
B IN
EXT. REF
B Through
EXT. REF
Through
IN
4
Adjust the phase synchronization control on the
vectorscope so that the sync and subcarrier phases
are close to the reference line.
(for NTSC)
Reference line
Subcarrier
phase
Sync
phase
Align the sync and subcarrier phase of the black burst
signal to the reference line.
(for PAL)
Reference line
Sync
phase
Subcarrier
phase
Align the sync phase of the black burst signal to the
reference line.
Align the subcarrier phase of the black burst signal
symmetrically up and down.
(Continued)
65
Synchronizing the Time Codes
¥ The internal time code is output with the phase
synchronized to the line-outs (COMPONENT
OUTPUT, S VIDEO OUT, VIDEO OUT2) when TC/
UB IN on the TC/UB SET menu is set to
INTERNAL.
(When the EE signal is output, the output signals of
the line-outs are delayed for one line from the input
video signal when the component video (CAMERA)
or S-video is input, and delayed for two lines from
the input video signal when the composite video
(CAMERA, VIDEO/REF.IN) is input.)
¥ When inputting signals from the DV IN/OUT
connector, if you set TC/UB IN to INTERNAL or
UB EXT, the time code and user bits generated
internally are recorded under the INTERNAL setting
in TC/UB IN on the TC/UB SET menu. If you want
to record with the time code input from the DV IN/
OUT connector, set TC/UB IN to TC EXT or
TC&UB EXT, or use the duplicate function.
¥ When the DVCAM/DV select switch is set to
DVCAM, if you set TC/UB IN to TC EXT or
TC&UB EXT, this unit records the time code input
from the DV IN/OUT connector and the user bits
internally generated, and the TC OUT connector
outputs the same time code and user bits.
¥ During the duplicate operation, this unit records the
time code and user bits on the source tape currently
being duplicated and the TC OUT connector outputs
the same time code and user bits. The time code and
user bits are output with the phase synchronized to
the line-outs (COMPONENT OUTPUT, S VIDEO
OUT, VIDEO OUT2) during the duplicate operation.
For details on the duplicate function, see Duplication
(generating a work tape with the same time code) on
page 70 (GB).
¥ During the audio dubbing operation, the TC OUT
connector outputs the time code and user bits on the
tape currently being played.
For details on audio dubbing, see Audio Dubbing on
page 74 (GB).
64
(GB) (GB) Chapter 4 Setting the Time Code and Adjusting the Video Signals

Adjusting the Sync and Subcarrier Phases of the Video Signals

5
Play back a tape from this unit after setting EXT
SYNC on the VIDEO SET menu to ON.
6
Press the A channel button on the vectorscope.
The vectorscope displays the sync phase and
subcarrier phase (composite signals only) of the
signal from this unit.
7
Adjust the SYNC control using H PHASE on the
VIDEO SET menu for rough adjustment, then
adjust H PHASE F for fine adjustment, so that the
output from this unit on channel (A) is in correct
phase alignment with the black burst signal on
channel (B).
8
Adjust the SC control using SC PHASE on the
VIDEO SET menu for rough adjustment, then
adjust SC PHASE F for fine adjustment, so that the
output from this unit on channel (A) is in correct
phase alignment with the black burst signal on
channel (B).
(for NTSC)
This indicator
moves as you
adjust the H
PHASE or H
PHASE F menu.
Adjust the sync and subcarrier phase of the output
signal from this unit.
(for PAL)
This indicator
moves as you
adjust the H
PHASE or H
PHASE F menu.
Adjust the sync and subcarrier phase of the output
signal from this unit.
Note
When component signals are used, the subcarrier
phase indicator does not appear.
66
(GB) (GB) Chapter 4 Setting the Time Code and Adjusting the Video Signals
1-15
¥ To display and check the time code currently being
advanced with the FREE RUN setting, press the REC
button when all the conditions below are met.
— The unit is in the stop mode.
— The COUNTER switch is set to TC.
— TC RUN on the TC/UB SET menu is set to FREE
RUN.
— TC MAKE on the TC/UB SET menu is set to
PRESET.
If you press the STOP button, the time code display
returns to the last time code value it was able to read
on the tape.
¥ To display the current time that is set in CLOCK SET
on the OTHERS menu as the user bits, press the REC
button when all the conditions below are met.
— The unit is in the stop mode.
— The COUNTER switch is set to U-BIT.
— UB TIME on the TC/UB SET menu is set to ON.
(If UB TIME is set to OFF, the value set in UB
PRESET will be displayed.)
If you press the STOP button, the user bits display
returns to the last value it was able to read on the
tape.
¥ If the external time code input is discontinuous or
does not advance correctly, the time code input may
be delayed compared to the time code recorded on the
tape or the time code shown on the display of this
unit. If there is a discontinuous time code on your
recorded tape, you may not be able to edit or search
correctly, depending on the device connected to this
unit.
This indicator
moves as you
adjust the SC
PHASE or SC
PHASE F menu.
This indicator
moves as you
adjust the SC
PHASE or SC
PHASE F menu.