Keysight Technologies Infiniium 90000A Series, Service Manual

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50 90000 A-Series Service Guide
4
Troubleshooting
Run the oscilloscope self tests
Running the oscilloscope self tests performs a series of internal procedures to
verify that the oscilloscope is working properly.
1
Click Utilities > Self Test... .
2
Select Scope SelfTest from the Available Self Tests drop-down list box.
3
Click Start and follow the instructions on the screen.
If any of the self tests fail, go to the “Acquisition/Backplane assembly
troubleshooting” section.
Run the keyboard, LED, and touch screen self tests
To verify correct keyboard operation:
1
Click Utilities > Self Test... .
2
Select Keyboard Test from the drop-down list box, then click Start .
The Front Panel Keyboard Test window appears, showing a symbolic
representation of the keyboard.
3
Press each key on the keyboard until you have pressed all keys. When you press
a key or push a knob, the bar above the corresponding key/knob symbol on the
display should change from red to green.