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
Reference
signal generator
B IN
EXT. REF
B Through EXT. REF Through
IN
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.
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)
Signals Video the Adjusting and Code Time the Setting 4 Chapter
Chapter 4 Setting the Time Code and Adjusting the Video Signals 65 (GB)