Tektronix TDS3000 - page 62

Performance Verification
4–6 TDS3000 Series Service Manual
Vertical SCALE
setting Invert setting Bandwidth limit setting Offset Input voltage Low limit High limit
1 mV/div Off 20 MHz 96.5 mV 100 mV 99.25 mV 100.8 mV
2 mV/div Off 20 MHz 0.0 V –7 mV –7.540 mV –6.460 mV
5 mV/div Off 20 MHz –82.5 mV –100 mV –101.8 mV –98.24 mV
50 mV/div Off Full 825 mV 1.0 V 982.4 mV 1.018 V
50 mV/div Off Full 825 mV 650 mV 632.4 mV 667.6 mV
50 mV
delta1340.5 mV 359.5 mV
90 mV/div 2Off Full 0.0 V –315 mV –339.3 mV –290.7 mV
200 mV/div Off 150 MHz 39.3 V 10 V 9.900 V 10.10 V
1 V/div On 4150 MHz 3–6.5 V 10 V –10.30 V –9.698 V
1Refer to step 15e on page 4–6 to calculate 50 mV delta measurement.
2Push the Vertical MENU button, push the Fine Scale screen button, then use the general purpose knob to adjust setting to
90 mV/div.
3Use the Full bandwidth setting on the TDS3012 or TDS3014 oscilloscopes.
4Make sure to turn Invert setting to On for this measurement.
15. For each row of the table, do these steps:
a. Set the vertical SCALE control to the setting in the table.
b. Set the Invert and Bandwidth Limit controls to the settings in the table.
c. Set the output of the DC voltage source to the voltage level in the table.
d. Verify that the oscilloscope Mean measurement is within the limits listed in
the above table.
e. For the 50 mV delta measurement, subtract the second 50 mV measurement
from the first 50 mV measurement; verify that the difference is within the
limits stated in the Delta row of the table.
16. Repeat steps 15a through 15e for each row in the table.
17. Push the waveform off button.
18. Repeat steps 9 through 17 for each channel of the oscilloscope (not including
the external trigger input on some models).