Magni MM-410, Руководство оператора, Страница: 89 / 182

Viewing Waveforms, Vectors, and Pictures
7-17
Controlling the Vector Display
You use the right knob to control the vector display. This switch acts as the variable gain control for
vectors as well as waveforms. The switch also has the same scrolling action as the
H Pos
knob for
expanding waveforms.
To rotate the vector display, press the Vec. Phase button and then turn the knob. The Vec. Phase LED
lights indicating that the switch is now controlling the vector phase.
To change the gain of the vector, press the
Var. Gain
button and then turn the knob. The Var. Gain
LED lights indicating that the switch is now controlling the vector gain. The word Gain also appears at
the upper right of the display.
To select a line, press the
Line Sel
button and then turn the knob. The Line Sel LED lights indicating
that the switch is now controlling the line select option. The line select indicator also appears at the
top-center of the display. If desired, press the
Field Sel
button to change to the other field.
You can turn off each of the three variable controls individually or you can recall a memory that does
not have any variable controls turned on.
For color bar signals with 100% saturation, switch the vector to 100% as follows:
1. Press the Config button.
2. Select VECTOR and then press the Enter button.
3. Select COLOR BARS and then press the Enter button or turn the knob to choose 75% or 100%.
The V Mag button magnifies the vector by a factor of 2.5.
PAL composite vectors have a mirror image appearance that sometimes causes difficulty when
attempting to interpret the vector (see Figures 7-19 and 7-20). To switch this effect off:
1. Press the
Config
button.
2. Select VECTOR and then press the
Enter
button.
3. Select +V SWITCH and then press the
Enter
button or turn the knob to choose ON or OFF.