Specifications

To test the digital channels
Instructions for HP 54645D
These instructions apply only to the HP 54645D Mixed-Signal Oscilloscope.
Testing the acquisition system does not check a specification, but does
provide confidence that the system is functioning correctly.
1
Disconnect probes from the circuit under test or other input source.
2
Connect digital channels D0, D1, D2, and D3 to the calibration point
on the HP 54645D front panel, using probe leads and grabbers.
3
Press
Autoscale
.
If four square waves appear, the acquisition system is functioning correctly.
4
Repeat steps 2 and 3 with the following sets of digital channels.
•
4, 5, 6, 7
•
8, 9, 10, 11
•
12, 13, 14, 15
Be sure to disconnect each set of digital channels from the calibration point
before connecting the next.
Testing, Adjusting, and Troubleshooting
To test the digital channels
7-11