Tektronix TDS7054, Service Manual

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Brief Procedures
TDS7104 & TDS7054 Service Manual
4- 11
H
Change the horizontal SCALE to 20 s/div . The rising edge of the
waveform should remain near the center graticule and the falling
edge should be off screen.
b. Turn on and set horizontal delay:
H
Pull down the Horiz/Acq menu to select Horizontal/Acquisition
Setup. . . .
H
Click the Horizontal tab in the control window that displays.
H
Click the Delay Mode button to turn delay on.
H
Double click the Horiz Delay control in the control window to
display the pop-up keypad. Click the keypad buttons to set the
horizontal delay to
500 s and then click the ENTER key.
c. Verify the waveform: Verify that a falling edge of the waveform is within
a few divisions of center screen.
d. Adjust the horizontal delay: Rotate the upper multipurpose knob to
change the horizontal delay setting. Verify that the falling edge shifts
horizontally. Rotate the front-panel horizontal
POSITION knob. Verify
that this knob has the same effect (it also adjusts delay, but only when
delay mode is on).
e.
Verify the delay toggle function:
H
Rotate the front-panel horizontal POSITION knob to center the
falling edge horizontally on the screen.
H
Change the horizontal SCALE to 40 ns/div . The falling edge of the
waveform should remain near the center graticule. If not, readjust the
delay setting to center the falling edge.
H
Push the front-panel
DELAY
button several times to toggle delay off
and on and back off again. Verify that the display switches quickly
between two different points in time (the rising and falling edges of
this signal).
7.
Remove the test hookup:
Disconnect the BNC cable from the channel input
and the probe compensation output.