Tektronix 1740A/1750A - Manual (Page 46)

Operator’s Checkout Procedure
2-16
1740A/1750A Series Waveform/Vector Monitor User Manual
control to move the cursor away from graticule center, and
the center bezel control to move the cursor around the grati-
cule center point. Note that the amplitude and phase of the
cursor are displayed on screen.
Select MARK and set QUANTITY to 2. Move the marker by
rotating the AMPLITUDE knob. Note that the two graticule
markers appear as small numbered boxes. Set CONTROL to 1
and use the left bezel control to move marker 1 away from
the graticule center. Use the center control to move the
marker around the graticule center point. Change
CONTROL
to 2. Use the bezel controls as for marker 1. Select X5 gain
and note that the markers do not move. These markers can
be used to highlight desired features of the vector graticule.
Return to
WAVEFORM display mode.
Exit the CURSOR menu, then enter the menu again. Note
that MARK is still selected and marker positions are un-
changed. Exit the menu. (For more information about using
the cursors, see page 3-8.)
8. Filter Selection
The 1740A/1750A--Series offers several filter selections for
the waveform display.
Ensure that the instrument is operating in waveform mode.
Enter the
FILTER menu ( FLAT is selected by the factory
preset). Select LUM filter. This provides a low-pass-filtered
display of the luminance portion of the signal. See
Figure 2-7.
Select CHROM . This provides a bandpass-filtered display of
the chrominance portion of the signal. See Figure 2-8.
Select F+L ( FLAT plus LUM ) . The flat display is superimposed
on the luminance-filtered display (overlay is selected by the
factory preset). Press the appropriate bezel button (not the
front-panel
PARADE button) to select parade. The flat display
is now on the left, followed by the luminance-filtered display.