Technical data

78 4000 X-Series Oscilloscopes Service Guide
4 Troubleshooting
• Other:
• Acquire mode normal.
• Run/Stop to Run.
• cursor measurements off.
Figure 12 Default setup screen
2 If your screen looks substantially different, replace the
system board.
To perform an Auto Scale on the Probe Comp signal
1 Press the [Default Setup] key. The oscilloscope is now
configured to its default settings.
2 Connect an oscilloscope probe from channel 1 to the Probe
Comp signal terminal on the front panel.
3 Connect the probe’s ground lead to the ground terminal
that is next to the Demo 2 (Probe Comp) terminal.