Tektronix WVR7200 Technical Reference page 114

Video and General Performance Verification Procedures
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4. Press the Input 2A button.
5. Press the FULL button to make the WFM tile the full screen.
6. Adjust cursors to be near the top and zero portions of the waveform. Press the
CURSORS button and use the GENERAL knob to adjust the Volt1 or Volt2
readouts. Use the arrow keys to select between them.
7. Press and hold the GAIN button, select Gain Settings and then x5.
8. Press the GAIN button to close the menu.
9. Adjust the lower cursor to align with the bottom of the reference step of the
waveform.
10. Use the VERTICAL knob to move the top of the waveform to the 0 IRE
graticule. The second cursor should also be near the zero graticule mark.
11. Use the GENERAL knob to adjust the upper cursor to align with the top of
the reference step of the waveform.
12. Check the cursor delta readout of the magnitude of the reference step. Note
this number. It should be near 98 IRE.
13. Next, adjust the upper cursor to align with the top of the largest packet of
the waveform.
14. Use the VERTICAL knob to move the baseline of the waveform to the 0 IRE
graticule. The other cursor should also be near the zero graticule mark.
15. Use the GENERAL knob to adjust the lower cursor to align with the bottom
of the largest packet of the waveform.
16. Note the cursor delta value for the amplitude of the largest packet.
17. Adjust the lower cursor to align with the bottom of the smallest packet of
the waveform.
18. Use the VERTICAL knob to adjust the vertical position to align the top of
the waveform to the 0 IRE graticule.
19. Use the GENERAL knob to adjust the upper cursor to align with the top of
the smallest packet of the waveform.
20. Note the cursor delta value for the amplitude of the smallest packet.
21. In the test record, record the deviation from reference that has the largest
magnitude, either largest-reference or smallest-reference.
Adjust.. If the Frequency Response is outside the specification, press the
CONFIG button, select Calibration, and then press the SEL botton. Use the
down arrow to navigate to Composite Freq Peak, and then follow the on-screen
instructions to adjust the response. Follow the instructions at the bottom of the
screen to Save and Exit calibration mode. Afterwards, repeat the above test for
Analog Frequency Response and record the new value in the test record.
WVR7200 Specifications and Performance Verification