User manual

Operation Basics: Tutorial
WFM 90 & WFM 91 User Manual
2–13
3. Using the waveform monitor
Press the
MENU button to enter the Operating menu. The current
selection for each monitoring function is highlighted. Pressing the
Bezel Button below each function will toggle the highlight bar
through the different menu selections.
X1/X5 Gain. Press the left Bezel Button and notice that
X5 is
highlighted and that the waveform is vertically amplified. Use the
Y and B buttons to view the entire signal. Select X1 and return the
signal to the graticule baseline. The gain setting affects both the
Waveform and Vector displays since they track together.
Filter. Press the Bezel Button below the
FILTER selection and notice
that
LUM is highlighted and that the display changes to show only the
luminance portion of the signal. Press the Bezel Button again to
return the filter selection to
FLAT.
Sweep. Press the Bezel Button below the
SWEEP selection and
notice that
2F is highlighted and that the waveform changes to a
two-field display. Press the Bezel Button again and notice that
1H is
highlighted and that the waveform changed to a one-line display and
that
5 uS/DIV is displayed in the on-screen readout. Return the sweep
rate to
2H (two line).
MAG. Press the right Bezel Button and notice that
ON is highlighted
and that the waveform is horizontally amplified. The sweep rate
readout should read
1 uS/DIV. Use the A and " buttons to view the
entire waveform. Select
MAG OFF from the menu and center the
waveform on the display.
DC Restorer. Enter the Configuration menu and select the
INPUT
category. Notice that there is a menu selection which allows you to
change the DC restorer speed between
FAST and SLOW.