Magni MM-410, Руководство оператора, Страница: 79 / 182

Viewing Waveforms, Vectors, and Pictures
7-7
How to View a Selected Line (Waveform, Vector and CPNT
Bars)
You use the front panel to view a selected line from an odd field or an even field. The MM-410/AVM-
510A is normally set up to view all lines of the video signal, however, you can change this setting to
view any two or 15 lines by pressing the
Line Sel
button and accessing the Configure menu.
Whether you view one or two lines depends on the sweep rate. In 1H sweep, the display shows the
selected line with the next line off to the right of the screen. If you want to view the next line, turn the
knob to the right until it appears on the display. In 2H sweep, the selected line is the one on the left of
the pair of lines shown.
Each time Line Select is used, a numeric indicator (indicating field and line numbers) appears over the
graticule (see Figure 7-7) and a corresponding LED lights indicating that the knob is controlling the
line selection. You can change the line number (the number after the colon in the numeric indicator) by
turning the knob. Press the
Line Sel
button to go back to viewing all lines.
Line select also means field select as well. To change the selected line view from an odd field to an
even field, press the
Field Sel button. You can also change to the other field by turning the knob
through the vertical interval and into the next field, going in either direction.
NOTE: You cannot view a selected line in all fields at once, nor is it possible to view a
line from just one field. Odd fields and even fields are your only choices.
As stated above, the MM-410/AVM-510A is normally set to Line Select so you can view two lines at
a time. To change this setting to view 15 lines:
1. Press the
Config
button.
2. Select DISPLAY and then press the
Enter
button.
3. Select LINE SELECT MODE.
4. Press the
Enter
button or turn the knob to change between 2-LINE or 15-LINE modes.
5. Press the
Clr Mnu
button to exit.
The settings for intensity and persistence are different for line select and normal all-lines viewing. The
default settings for intensity and persistence are both much higher for line select mode. If you change
the intensity during line select, this does not affect the intensity when viewing all lines.