JVC 330 Service Manual page 162

Glossary
Vertical Resolution
Vertical Scan Frequency
(V-Freq)
Vertical
Synchronization
Frequency
Xenon Arc Lamp
temporarily with the Executive I/R remote.
The amount of detail that can be perceived in the vertical
direction; the maximum number of alternating white and
black horizontal lines that can be counted from the top of the
picture to the bottom.
The vertical scan frequency of the input signal.
The number of times per second a frame is
transmitted to a video display screen.
See Arc Lamp.
Model 330, 340SC, and 370SC Service Manual