Solving General Problems With The Oscilloscope - Keysight Technologies InfiniiVision 2000 Service Manual

4
Troubleshooting

Solving General Problems with the Oscilloscope

This section describes how to solve general problems that you may encounter
while using the Keysight 2000/3000 X-Series oscilloscopes.
After troubleshooting the oscilloscope, if you need to replace parts, refer to
Chapter
If there is no display
If there is no trace display
If the trace display is unusual or unexpected
64
6, "Replaceable Parts," starting on page 73.
Check that the power cord is firmly seated in the oscilloscope power
receptacle.
Check that the power source is live.
Check that the front-panel power switch is on.
If there is still no display, go to the troubleshooting procedures in this chapter.
Check that the Intensity (on the front panel) is adjusted correctly.
Recall the default setup by pressing [Defaul t Setup]. This will ensure that the
trigger mode is Auto.
Check that the probe clips are securely connected to points in the circuit under
test, and that the ground is connected.
Check that the circuit under test is powered on.
Press the [AutoScale] key.
Obtain service from Keysight Technologies, if necessary.
Check that the Horizontal time/division setting is correct for the expected
frequency range of the input signals.
The sampling speed of the oscilloscope depends on the time/division setting. It
may be that when time/division is set to slower speeds, the oscilloscope is
sampling too slowly to capture all of the transitions on the waveform. Use peak
detect mode.
2000/3000 X-Series Oscilloscopes Service Guide