Tektronix 684A, 744A, 784A - page 112

Performance Tests
4–36 TDS 684A, TDS 744A, & TDS 784A Service Manual
f. Measure the test signal:
HSet the frequency of the generator, as shown on screen, to the test
frequency in Table 4–4 that corresponds to the vertical scale set in
substep d. See Figure 4–8.
HSet the horizontal SCALE to the horizontal scale setting in
Table 4–4 that corresponds to the vertical scale set in substep d.
Press SET LEVEL TO 50% as necessary to trigger the signal.
HRead the results at the CHx Pk-Pk readout, which will automatically
measure the amplitude of the test signal. See Figure 4–8.
Set the generator
(reference) frequency to
the test frequency from
Table 4–4.
1
Set the horizontal scale
from Table 4–4. 2
Read results. 3
Figure 4–8: Measurement of Analog Bandwidth
g. Check against limits:
HCHECK that the Pk-Pk readout on screen is within the limits listed
in Table 4–4 for the current vertical scale setting.
HEnter voltage on test record.
HWhen finished checking, set the horizontal SCALE back to the
50 ns setting.