Adjusting the Sync and Subcarrier Phases

When using two or more players, as in an A/B roll editing

After configuring the editing system, use a vectorscope to

system, it is necessary to synchronize the sync and

adjust the sync and subcarrier phases of the recorder and

subcarrier (for composite signals) phases of the signals to

players. Subcarrier phase adjustment is necessary when

be edited. If they are not synchronized, picture instabilities

using composite signals and Y/C signals.

or color break-up may occur at edit points.

 

This unit (player 1)

Switcher (DFS-700A/700AP) a)

DSR-1500A/1500AP (recorder)

UVW-1600/1600P (player 2)

75 Ω coaxial cable (A)

75 Ω coaxial cable (B)

Vectorscope

Editing control unit (PVE-500, etc.)

a)The sync and subcarrier phases of the output signal from the DFS-700A/700AP switcher are automatically adjusted.

Note

Ensure that the 75 Ω coaxial cables (A) and (B) (not supplied) are of the same length.

Settings and Connections 7 Chapter

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.

Adjusting the Sync and Subcarrier Phases

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