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

 

Vectorscope with SCH mode

 

 

 

 

 

 

 

 

 

 

 

Vectorscope with SCH mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reference video

 

B IN

 

 

EXT. REF

 

signal generator

 

 

 

B Through

EXT. REF

Through

 

 

 

 

 

 

 

 

 

 

IN

 

 

 

 

 

 

 

 

 

 

 

VIDEO OUT

DSR-45/45P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIDEO IN REF.IN

Signals Video the Adjusting and Code Time the Setting 4 Chapter

Performing a phase adjustment operation

4 Adjust the phase synchronization control on the

1 Press the SCH button on the vectorscope.

 

vectorscope so that the sync and subcarrier phases

 

are close to the reference line.

 

 

 

The vectorscope goes into the “SCH” mode.

 

 

 

 

 

 

 

 

 

(for NTSC)

Reference line

2 Press the B channel button on the vectorscope.

 

 

 

 

 

 

Subcarrier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

phase

 

 

 

The black burst signal from the reference video

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

signal generator is selected.

 

 

 

 

 

 

 

 

3 Press the EXT button on the vectorscope.

 

Sync phase

 

 

 

 

Align the sync and subcarrier phase of the black burst

 

 

The vectorscope goes into the external

 

signal to the reference line.

 

 

 

 

 

 

 

 

 

 

 

synchronization mode.

 

 

 

 

 

 

 

 

 

 

(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.

66 (GB) Chapter 4 Setting the Time Code and Adjusting the Video Signals