Chapter 4 : Troubleshooting - Rigol DS1102/4B User Manual

Chapter 4 : Troubleshooting

1. After the oscilloscopes is powered on, the screen remains dark (no
display):
(1) Check the power cord connection.
(2) Ensure the power switch is turned on.
(3) After the above inspection, restart the oscilloscope.
(4) If the problem still remains, please contact RIGOL for help.
2. After the signal acquisition the waveform does not appear:
(1) Check the probes connected with the signals.
(2) Check the probes connected to the channels firmly.
(3) Check the probes connected with the object being tested.
(4) Check the circuit generates signal at the test point.
(5) Repeat the acquisition.
3. The measurement result is 10 times higher or lower than the value
expected.
Check if the probe attenuation is the same as the channel attenuation.
4. If the oscilloscope does not get a stable waveform display:
(1) Check the Trigger Source and notice if it is set to the channel in use.
(2) Check the Trigger Type. Use "Edge" for normal signals, and use "Video" for
VIDEO signals.
(3) Switch the coupling into HF Rejection or LF Rejection in order to filter the
noise which disturbs trigger.
(4) Adjust the trigger Sensitivity and the hold off time.
5. After pressing the RUN/STOP button, the oscilloscope does not display
any waveform on screen.
Check whether the Trigger Mode is set to "Normal" or "Single" and see
whether the trigger level is out of the signal range. If yes, set the trigger level in
proper range by turning the
the Trigger Mode as "AUTO". Moreover, push AUTO button to display the
waveform on screen.
6. After the Acquisition is set to "Averages" or Display Persistence is set
ON, the waveform refreshes slowly.
It is normal in these settings.
© 2008 RIGOL Technologies, Inc.
knob or pressing the 50% button. Or set
User's Guide for DS1000B Series
RIGOL
4-1