The demonstration and execution of the solution is the purpose of this issue. First, we will look at why everything appears correct at the local monitor and even on Preview, but not on Program or the record machine. We will then continue with how to measure the error and fix it. Everything looks OK out of the camera or VTR because the composite picture is still all related. The camera usually has an internal sync generator which makes the sync and subcarrier as well as drives the rest of the camera to make the video.
All parts are from a single sync generator.
The video from a camera is recorded on tape. Again, the signal relationships are maintained. The first typical step in the operation of a TBC is to play back color bars on the VTR and adjust the hue, saturation, video level and pedestal controls until the output of the TBC looks like the original video. At this point, the operator is adjusting the timing of the sync generator and amplitudes of the processing amplifiers. The operator uses a waveform monitor to view sync, pedestal and video levels.