Tektronix 1740A/1750A 7. Voltage and Timing Cursors, Press the MAG button. The MAG indicator lights and a, point on the signal (use the control if needed to view the cursor)

HORIZ POS

HORIZ POS

Operator’s Checkout Procedure

Press the MAG button. The MAG indicator lights and a

1 S/Div sweep is displayed. Use the control to view the magnified display, then turn off the MAG. (See page 3-4 for a list of sweep rates.)

7. Voltage and Timing Cursors

The 1740A/1750A-Series voltage, timing, and vector cursors can be used to measure any portion of the displayed signal.

Enter the CURSOR menu (factory preset selects voltage cursors; VOLT is outlined on screen). The voltage cursors appear as two dashed horizontal lines: cursor 1 has single dashes and cursor 2 has double dashes. Use the left and center bezel controls to adjust the cursors individually, or the right control to move both cursors by the same amount (TRACK). The voltage difference between the cursors is displayed as ∆V. Align a voltage cursor with a signal reference point and press MAG. The cursor is still at the same

point on the signal (use the control if needed to view the cursor).

Select timing cursors (TIME). The timing cursors appear as two vertical dashed lines: cursor 1 has single dashes and cursor 2 has double dashes. The time difference between them is displayed as ∆T. Select voltage and timing cursors together (V+T). Note that when CONTROL is set to TIME, the three bezel controls adjust timing cursors; when set to VOLT, they adjust voltage cursors.

Select markers (MARK). The markers appear as three dashed lines; marker 1 has long single dashes, marker 2 has double dashes, and marker 3 has short dashes. Use the three bezel controls to position the markers to a reference point on the etched graticule (such as peak white, baseline, and sync tip). Select X5 gain and notice that the markers do not move. These markers can be used to highlight desired features of the waveform graticule.

Turn off the GAIN menu, then press the CURSOR button. Select VECTOR display mode. The vector cursor menu is displayed (POLAR has been selected by the factory preset). The polar cursor appears as cross hairs. Use the left bezel

1740A/1750A Series Waveform/Vector Monitor User Manual 2-15