Tektronix WVR7200, Руководство по обслуживанию, Страница: 28 / 66

Adjustments
4. Set the Oscilloscope:
Control Setting
Vert
200 mV/Div
Horiz
20 μ s/Div
Trigger Edge
5. Press the Con fi g button.
6. Select Utilities > Calibration . Press SEL to enter the calibration menu.
7. Navigate to the Pixmon YRGB black level calibration case, and press SEL
to start.
8. Adjust the oscilloscope trigger level for a stable display.
9. Use the General knob to adjust the signal black level to 0 V on the
oscilloscope.
10. Follow the instructions at the bottom of the calibration screen to Save and
Exit Calibration mode.
PixMon PbPr Zero Level 1. Connect a signal with an identi fi able black level, such as 0% Flat Field or
100% Color Bars, to the SDI A input.
2. Connect an XGA to 5x BNC adapter cable to the PixMon output.
3. Connect the Pb/Blue video signal to the oscilloscope input. (Use an
oscilloscope with a 75
Ω input, or a 75 Ω feed through termination.)
4. Set the Oscilloscope:
Control Setting
Vert 200 mV/Div
Horiz 20 μ s/Div
Trigger Edge
5. Press the Con fi g button.
6. Select Utilities > Calibration . Press SEL to enter the calibration menu.
7. Navigate to the Pixmon PbPr zero level calibration case, and press SEL
to start.
8. Adjust the oscilloscope trigger level for a stable display.
9. Use the General knob to adjust the signal zero level to 0 V on the oscilloscope.
10. Follow the instructions at the bottom of the calibration screen to Save and
Exit Calibration mode.
14 WVR7200 Waveform Rasterizer Service Manual