Operator’s Checkout Procedure

control to move the cursor away from graticule center, and the center bezel control to move the cursor around the graticule 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.

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1740A/1750A Series Waveform/Vector Monitor User Manual