Tektronix TDS6404, Service Manual

Page: 86 / 252

Performance Tests
4- 30
TDS6000 Series Service Manual
TDS6000 Series
DC Calibrator
50
Ω
Coaxial cables
Dual-banana-to-BNC
adapters
BNC “T”
connector
Output Sense
Figure 4- 8: Initial test hookup
b.
Initialize the oscilloscope:
Press DEFAULT SETUP .
c.
Modify the default settings:
H
From the tool bar, touch Horiz and select the Acquisition tab.
H
Touch Average and set the number of averages to 16 .
2. Confirm input channels are within limits for DC accuracy at maximum offset
and position:
Do the following substeps — test CH 1 first, skipping substep
2a since CH 1 is already selected from step 1.
a. Select an unchecked channel:
H
From the tool bar, touch MEAS and then Clear to remove the
previous measurement.
H
Press the Vertical button of the channel just confirmed to remove the
channel from the display.
H
Press the front-panel Vertical button that corresponds to the channel
you are to confirm.
H
Set the generator output to 0 V.
H
Move the test hookup to the channel you selected.
b. Turn on the measurement Mean for the channel:
H
From the tool bar, touch
MEAS
and select the
Ampl
tab, then touch
Mean to measure the mean of the current channel.
H
Press Close .