Sony DSR-DR1000 - Manual (Page 92)

92
Adjusting the Sync and Subcarrier Phases
Adjusting the Sync and Subcarrier Phases
When using two or more players, as in an A/B roll editing
system, it is necessary to synchronize the sync and
subcarrier (for composite signals) phases of the signals to
be edited. If they are not synchronized, picture instabilities
or color break-up may occur at edit points. After configuring the editing system, use a vectorscope to
adjust the sync and subcarrier phases of the recorder and
players. Subcarrier phase adjustment is necessary when
using composite signals and Y/C signals.
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 displays the black burst signal from the switcher.
3
Press the EXT button on the vectorscope.
This switches the vectorscope to external
synchronization mode.
4
Adjust the phase synchronization control on the
vectorscope so that the sync and subcarrier phases are
close to the reference line.
b) Ensure that the 75
Ω
coaxial cables (A) and (B) (not
supplied) are of the same length.
This unit (player 1)
UVW-1600/1600P (player 2)
Switcher (DFS-700A/700AP)
a)
75
Ω
coaxial cable (B)
b)
PVE-500 Editing Control Unit
a) The sync and subcarrier phases of the
output signal from the DFS-700A/700AP
switcher are automatically adjusted.
Vectorscope (Sony Tektronix
1750/1751, etc.)
75
Ω
coaxial cable (A)
b)
DSR-1500A/1500AP (recorder)