Tektronix CSA8000B - Manual (Page 42)

Incoming Inspection
1- 24 CSA8000B & TDS8000B User Manual
6. Verify that the channel is operational: Confirm that the following statements
are true:
H The vertical scale readout for the channel under test shows a setting of
100 mV , and a DC level is at about 2 divisions above center screen.
H The front-panel vertical POSITION knob (for the channel you are
testing) moves the DC level up and down the screen when rotated.
Return the DC level to 2 divisions above center screen before continuing.
H Turning the vertical SCALE knob to 50 mV changes the amplitude of
the DC level to about 4 divisions above center screen, and returning the
knob to 100 mV returns the amplitude to about 2 divisions above center
screen.
7. Verify that the channel acquires in all acquisition modes: Push the
front-panel Acquisition MENU button to display the Acq setup dialog box.
Click each of the three acquisition modes, and confirm that the following
statements are true:
H Sample mode displays an actively acquiring waveform on-screen. (Note
that there is a small amount of noise present on the DC level).
H Average mode displays an actively acquiring waveform on-screen with
the noise reduced.
H Envelope mode displays an actively acquiring waveform on-screen with
the upper and lower extremes of the noise displayed.
8. Close Acquisition setup dialog box: Push the Acquisition MENU button to
close the Acq setup dialog box.
9. Verify the DC accuracy compensation: Do the following substeps:
a. Select Measurement from the Setup menu. In the Meas Setup dialog box
that displays:
H Select as Source the channel under test. For example, select Main C3
for channel 3.
H Select Meas1.
H Set the Select Meas menu to Pulse > Amplitude > Mean.
b. Push the Vertical MENU front-panel button to switch to the Vert Setup
dialog box.