sampling is then buffered to ensure no signal loss and used to offset the loss in level at burst gate. A
good example of how this circuit compensates for changes in tracking is the STILL mode condition. In
the STILL mode, the head varies off the track as the tape comes to a halt. This would mean a definite
loss of video signal. However, as long as horizontal sync is present, the chroma level will be
maintained.
2.
The video hash that may be noticed on the screen only occurs during the time when the head
actually pulls away from the track. As long as the head is sweeping the track, chroma signal will remain
uniform line by line. Changes in speed from the normal tape path speed, such as the use of the forward
1/20th mode, should not be used to adjust for signal line loss or capacitance errors.
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