Tektronix TDS7054, Руководство по обслуживанию

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Performance Tests
TDS7104 & TDS7054 Service Manual
4- 47
H
Set the horizontal SCALE to the horizontal scale setting in
Table 4--7 that corresponds to the vertical scale set in substep d .
Press PUSH TO SET 50% as necessary to trigger the signal.
H
Read the results at the CHx Pk-Pk readout, which will automatically
measure the amplitude of the test signal. See Figure 4--20.
Set the generator
(reference) frequency to
the test frequency from
Table 4--7.
1
Set the horizontal scale
from Table 4--7.
2
Read results.
3
Figure 4- 20: Measurement of analog bandwidth
h. Check against limits:
H
CHECK that the Pk-Pk readout on screen is within the limits listed
in Table 4--7 for the current vertical scale setting .
H
Enter voltage on the test record.
H
When finished checking, set the horizontal SCALE back to the
50 ns setting.
STOP
. Checking each channel’s bandwidth at all vertical scale settings is time
consuming and unnecessary. You may skip checking the remaining vertical scale
settings in Table 4--7 (that is, skip the following substep,
i
) if this oscilloscope
has performed as follows:
H
Passed the 100 mV vertical scale setting just checked in this
procedure.
H
Passed the Verify Internal Adjustment, Self Compensation, and
Diagnostics procedure found under Self Tests, on page 4--5.