Tektronix DPO3000 Series, Service Manual

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Adjustment Procedures
3. Power on the oscilloscope calibrator and warm it up for 30 minutes.
4. Connect the active heads from the calibrator to the oscilloscope, ensuring
that Channel 1 on the calibrator connects to Channel 1 on the oscilloscope,
and so on.
NOTE.
For the DPO3000, there will be either 2 or 4 channels to connect. For
the MSO3000, there will be either 2 or 4 channels to connect, plus an additional
channel connection for the digital probe. Plug the digital probe into the Channel
5 active head on the calibrator, but do not plug the probe into the oscilloscope
until you begin a Deskew test.
5. Power off the oscilloscope. Locate the hole in the rear panel that provides
access to the CAL switch.
Figure 3-1: Rear panel
6. Insert the adjustment tool into the CAL switch hole. Use the tool to push and
hold the CAL switch in while you power on the oscilloscope. Keep holding
the switch until the oscilloscope shows the "Power-on self test passed"
message with the oscilloscope graticule in the background. This can take up
to a minute.
7. Push the Default Setup button on the front panel of the oscilloscope.
8. Push the Utility button on the front panel of the oscilloscope.
9. Push the Utility Page lower-bezel button. The utility page menu appears.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 3–3